/src/wireshark/epan/dissectors/packet-gsm_a_rr.c

Source
/* packet-gsm_a_rr.c
 * Routines for GSM A Interface (actually A-bis really) RR dissection - A.K.A. GSM layer 3 Radio Resource Protocol
 *
 * Copyright 2003, Michael Lum <mlum [AT] telostech.com>
 * In association with Telos Technology Inc.
 *
 * Added Dissection of Radio Resource Management Information Elements
 * and other enhancements and fixes.
 * Copyright 2005 - 2006, Anders Broman [AT] ericsson.com
 *
 * Added Dissection of E-UTRAN Description struct in
 * Cell selection indicator after release of all TCH and SDCCH IE
 * Lars Sundstrom X [AT] ericsson.com and Kjell Jansson [AT] ericsson.com
 * On Behalf of Ericsson AB
 *
 * Title        3GPP            Other
 *
 *   Reference [3]
 *   Mobile radio interface Layer 3 specification;
 *   Core network protocols;
 *   Stage 3
 *   (3GPP TS 24.008 version 4.7.0 Release 4)
 *   (ETSI TS 124 008 V6.8.0 (2005-03))
 *
 *   Reference [4]
 *   Mobile radio interface layer 3 specification;
 *   Radio Resource Control Protocol
 *   (GSM 04.18 version 8.4.1 Release 1999)
 *   (3GPP TS 04.18 version 8.26.0 Release 1999)
 *
 * Wireshark - Network traffic analyzer
 * By Gerald Combs <gerald@wireshark.org>
 * Copyright 1998 Gerald Combs
 *
 * SPDX-License-Identifier: GPL-2.0-or-later
 */

#include "config.h"

#include <epan/packet.h>
#include <epan/tap.h>
#include <epan/expert.h>
#include <epan/proto_data.h>
#include <epan/tfs.h>
#include <wsutil/array.h>
#include "packet-ber.h"
#include "packet-gsm_a_common.h"
#include "packet-gsmtap.h"

#include "packet-gsm_a_rr.h"

void proto_register_gsm_a_rr(void);
void proto_reg_handoff_gsm_a_rr(void);

static dissector_handle_t rrc_irat_ho_info_handle;
static dissector_handle_t rrc_irat_ho_to_utran_cmd_handle;

static unsigned gsm_a_rr_nri_length;

#define PADDING_BYTE 0x2B

/* 3GPP TS 44.018 version 11.2.0 Release 11 */
const value_string gsm_a_dtap_msg_rr_strings[] = {
    { 0x3c, "Reserved" },
    { 0x3b, "Additional Assignment" },
    { 0x3f, "Immediate Assignment" },
    { 0x39, "Immediate Assignment Extended" },
    { 0x3a, "Immediate Assignment Reject" },
    { 0x6a, "EC-Immediate Assignment Type 1"},

    { 0x48, "DTM Assignment Failure" },
    { 0x49, "DTM Reject" },
    { 0x4a, "DTM Request" },
    { 0x4b, "Packet Assignment" },
    { 0x4c, "DTM Assignment Command" },
    { 0x4d, "DTM Information" },
    { 0x4e, "Packet Notification" },

    { 0x35, "Ciphering Mode Command" },
    { 0x32, "Ciphering Mode Complete" },

    { 0x30, "Configuration Change Command" },
    { 0x31, "Configuration Change Ack." },
    { 0x33, "Configuration Change Reject" },

    { 0x2e, "Assignment Command" },
    { 0x29, "Assignment Complete" },
    { 0x2f, "Assignment Failure" },
    { 0x2b, "Handover Command" },
    { 0x2c, "Handover Complete" },
    { 0x28, "Handover Failure" },
    { 0x2d, "Physical Information" },

    { 0x08, "RR-cell Change Order" },
    { 0x23, "PDCH Assignment Command" },

    { 0x0d, "Channel Release" },
    { 0x0a, "Partial Release" },
    { 0x0f, "Partial Release Complete" },

    { 0x21, "Paging Request Type 1" },
    { 0x22, "Paging Request Type 2" },
    { 0x24, "Paging Request Type 3" },
    { 0x27, "Paging Response" },
    { 0x20, "Notification/NCH" },
    { 0x25, "Reserved" },
    { 0x26, "Notification/Response" },

    { 0x0b, "Reserved" },

#if 0
/* ETSI TS 101 503 V8.5.0 Seems to give Other def for this Messages??? */
    { 0xc0, "Utran Classmark Change" }, CONFLICTS WITH Handover To UTRAN Command
    { 0xc1, "UE RAB Preconfiguration" },
    { 0xc2, "cdma2000 Classmark Change" },
#endif

    /* ETSI TS 101 503 V8.5.0 */
    { 0x60, "Utran Classmark Change" },
    { 0x62, "cdma2000 Classmark Change" },
    { 0x63, "Inter System to UTRAN Handover Command" },
    { 0x64, "Inter System to cdma2000 Handover Command" },
    { 0x18, "System Information Type 8" },
    { 0x19, "System Information Type 1" },
    { 0x1a, "System Information Type 2" },
    { 0x1b, "System Information Type 3" },
    { 0x1c, "System Information Type 4" },
    { 0x1d, "System Information Type 5" },
    { 0x1e, "System Information Type 6" },
    { 0x1f, "System Information Type 7" },

    { 0x02, "System Information Type 2bis" },
    { 0x03, "System Information Type 2ter" },
    { 0x07, "System Information Type 2quater" },
    { 0x05, "System Information Type 5bis" },
    { 0x06, "System Information Type 5ter" },
    { 0x04, "System Information Type 9" },
    { 0x00, "System Information Type 13" },

    { 0x3d, "System Information Type 16" },
    { 0x3e, "System Information Type 17" },

    { 0x40, "System Information Type 18" },
    { 0x41, "System Information Type 19" },
    { 0x42, "System Information Type 20" },
    { 0x46, "System Information Type 21" },

    { 0x10, "Channel Mode Modify" },
    { 0x12, "RR Status" },
    { 0x17, "Channel Mode Modify Acknowledge" },
    { 0x14, "Frequency Redefinition" },
    { 0x15, "Measurement Report" },
    { 0x16, "Classmark Change" },
    { 0x13, "Classmark Enquiry" },
    { 0x36, "Extended Measurement Report" },
    { 0x37, "Extended Measurement Order" },
    { 0x34, "GPRS Suspension Request" },

    { 0x09, "VGCS Uplink Grant" },
    { 0x0e, "Uplink Release" },
    { 0x0c, "Reserved" },
    { 0x2a, "Uplink Busy" },
    { 0x11, "Talker Indication" },

    { 0xc0, "UTRAN Classmark Change/Handover To UTRAN Command" }, /* spec conflict */

    { 0x38, "Application Information" },

    {    0, NULL }
};

static const value_string gsm_a_dtap_msg_rr_ec_ccch_strings[] = {
    /* Channel establishment messages */
    { 0x01, "EC-Immediate Assignment Type 2" },
    { 0x02, "EC-Immediate Assignment Reject" },
    { 0x03, "EC-Dummy" },
    { 0x04, "EC-Downlink Assignment" },
    { 0x09, "EC-Paging Request" },

    {    0, NULL }
};

static const value_string gsm_rr_elem_strings[] = {
    /* Radio Resource Management Information Elements 10.5.2, most are from 10.5.1 */
    { DE_RR_BA_RANGE, "BA Range" },                                     /* [3]  10.5.2.1a BA Range */
    { DE_RR_CELL_CH_DSC, "Cell Channel Description" },                  /* [3]  10.5.2.1b */
    { DE_RR_BA_LIST_PREF, "BA List Pref" },                             /* [3]  10.5.2.1c BA List Pref */
    { DE_RR_UTRAN_FREQ_LIST, "UTRAN Frequency List" },                  /* [3]  10.5.2.1d UTRAN Frequency List */
    { DE_RR_CELL_SELECT_INDIC, "Cell Selection Indicator after Release of all TCH and SDCCH" }, /* [3]  10.5.2.1e   Cell selection indicator after release of all TCH and SDCCH IE */
    { DE_RR_CELL_DSC, "Cell Description" },                             /* 10.5.2.2  */
    { DE_RR_CELL_OPT_BCCH, "Cell Options (BCCH)" },                     /* [3]  10.5.2.3    Cell Options (BCCH) */
    { DE_RR_CELL_OPT_SACCH, "Cell Options (SACCH)" },                   /* [3]  10.5.2.3a   Cell Options (SACCH) */
    { DE_RR_CELL_SEL_PARAM, "Cell Selection Parameters" },              /* [3]  10.5.2.4    Cell Selection Parameters */
/* [3]  10.5.2.4a   (void) */
    { DE_RR_CH_DSC, "Channel Description" },                            /* 10.5.2.5  */
    { DE_RR_CH_DSC2, "Channel Description 2" },                         /* 10.5.2.5a */
    { DE_RR_CH_DSC3, "Channel Description 3" },                         /* 10.5.2.5c */
    { DE_RR_CH_MODE, "Channel Mode" },                                  /* [3]  10.5.2.6 */
    { DE_RR_CH_MODE2, "Channel Mode 2" },                               /* [3]  10.5.2.7 */
    { DE_RR_UTRAN_CM, "UTRAN Classmark" },                              /* [3]  10.5.2.7a   */
/* [3]  10.5.2.7b   (void) */
    { DE_RR_CM_ENQ_MASK, "Classmark Enquiry Mask" },                    /* [3]  10.5.2.7c */
/* [3]  10.5.2.7d   GERAN Iu Mode Classmark information element */
    { DE_RR_CHNL_NEEDED, "Channel Needed"},                             /* [3]  10.5.2.8    */
    /* [3]  10.5.2.8a   (void) */
    { DE_RR_CHNL_REQ_DESC2, "Channel Request Description 2"},           /* [3]  10.5.2.8b   Channel Request Description 2 */
    /* Pos 20 */
    { DE_RR_CIP_MODE_SET, "Cipher Mode Setting" },                      /* [3]  10.5.2.9    */
    { DE_RR_CIP_MODE_RESP, "Cipher Mode Response" },                    /* [3]  10.5.2.10   */
    { DE_RR_CTRL_CH_DESC, "Control Channel Description" },              /* [3]  10.5.2.11   Control Channel Description */
    { DE_RR_DTM_INFO_DETAILS, "DTM Information Details" },              /* [3]  10.5.2.11a  DTM Information Details */
    { DE_RR_DYN_ARFCN_MAP, "Dynamic ARFCN Mapping" },                   /* [3]  10.5.2.11b  */
    { DE_RR_FREQ_CH_SEQ, "Frequency Channel Sequence" },                /* [3]  10.5.2.12   */
    { DE_RR_FREQ_LIST, "Frequency List" },                              /* 10.5.2.13        */
    { DE_RR_FREQ_SHORT_LIST, "Frequency Short List" },                  /* 10.5.2.14        */
    { DE_RR_FREQ_SHORT_LIST2, "Frequency Short List 2" },               /* 10.5.2.14a       */
/* [3]  10.5.2.14b  Group Channel Description */
    { DE_RR_GPRS_RESUMPTION, "GPRS Resumption" },                       /* [3]  10.5.2.14c  GPRS Resumption */
    { DE_RR_GPRS_BROADCAST_INFORMATION, "GPRS Broadcast Information" }, /* [3]  10.5.2.14d  GPRS broadcast information */
/* [3]  10.5.2.14e  Enhanced DTM CS Release Indication */
    { DE_RR_HO_REF, "Handover Reference" },                             /* 10.5.2.15        */
    { DE_RR_IA_REST_OCT, "IA Rest Octets" },                            /* [3] 10.5.2.16    */
    { DE_RR_IAR_REST_OCT, "IAR Rest Octets" },                          /* [3] 10.5.2.17 IAR Rest Octets */
    { DE_RR_IAX_REST_OCT, "IAX Rest Octets" },                          /* [3] 10.5.2.18 IAX Rest Octets */
    { DE_RR_L2_PSEUDO_LEN, "L2 Pseudo Length" },                        /* [3] 10.5.2.19    */
    { DE_RR_MEAS_RES, "Measurement Results" },                          /* [3] 10.5.2.20 Measurement Results */
/*
 * [3] 10.5.2.20a GPRS Measurement Results
 */
    { DE_RR_MOB_ALL, "Mobile Allocation" },                             /* [3] 10.5.2.21    */
    { DE_RR_MOB_TIME_DIFF, "Mobile Time Difference" },                  /* [3] 10.5.2.21a   */
    { DE_RR_MULTIRATE_CONF, "MultiRate configuration" },                /* [3] 10.5.2.21aa  */
    /* Pos 30 */
    { DE_RR_MULT_ALL, "Multislot Allocation" },                         /* [3] 10.5.2.21b   */
    /*
     * [3] 10.5.2.21c NC mode
     */
    { DE_RR_NEIGH_CELL_DESC, "Neighbour Cell Description" },            /* [3] 10.5.2.22 Neighbour Cell Description */
    { DE_RR_NEIGH_CELL_DESC2, "Neighbour Cell Description 2" },         /* [3] 10.5.2.22a Neighbour Cell Description 2 */
/*
 * [3] 10.5.2.22b (void)
 * [3] 10.5.2.22c NT/N Rest Octets */
    { DE_RR_P1_REST_OCT, "P1 Rest Octets" },                            /* [3] 10.5.2.23 P1 Rest Octets */
    { DE_RR_P2_REST_OCT, "P2 Rest Octets" },                            /* [3] 10.5.2.24 P2 Rest Octets */
    { DE_RR_P3_REST_OCT, "P3 Rest Octets" },                            /* [3] 10.5.2.25 P3 Rest Octets */
    { DE_RR_PACKET_CH_DESC, "Packet Channel Description" },             /* [3] 10.5.2.25a   */
    { DE_RR_DED_MOD_OR_TBF, "Dedicated mode or TBF" },                  /* [3] 10.5.2.25b */
    { DE_RR_PKT_UL_ASS, "Packet Uplink Assignment" },                   /* [3] 10.5.2.25c RR Packet Uplink Assignment */
    { DE_RR_PKT_DL_ASS, "Packet Downlink Assignment" },                 /* [3] 10.5.2.25d RR Packet Downlink Assignment */
    { DE_RR_PKT_DL_ASS_TYPE2, "Packet Downlink Assignment Type 2" },    /* [3] 110.5.2.25e RR Packet Downlink Assignment Type 2 */
    { DE_RR_PAGE_MODE, "Page Mode" },                                   /* [3] 10.5.2.26  */
    { DE_RR_NCC_PERM, "NCC Permitted" },                                /* [3] 10.5.2.27 NCC Permitted */
    { DE_RR_POW_CMD, "Power Command" },                                 /* 10.5.2.28 */
    { DE_RR_POW_CMD_AND_ACC_TYPE, "Power Command and access type" },    /* 10.5.2.28a */
    { DE_RR_RACH_CTRL_PARAM, "RACH Control Parameters" },               /* [3] 10.5.2.29 RACH Control Parameters */
    { DE_RR_REQ_REF, "Request Reference" },                             /* [3] 10.5.2.30 Request Reference */
    { DE_RR_CAUSE, "RR Cause" },                                        /* 10.5.2.31 */
    { DE_RR_SYNC_IND, "Synchronization Indication" },                   /* 10.5.2.39 */
    { DE_RR_SI1_REST_OCT, "SI 1 Rest Octets" },                         /* [3] 10.5.2.32 */
/* [3] 10.5.2.33 SI 2bis Rest Octets */
    { DE_RR_SI2TER_REST_OCT, "SI 2ter Rest Octets" },                   /* [3] 10.5.2.33a */
    { DE_RR_SI2QUATER_REST_OCT, "SI 2quater Rest Octets" },             /* [3] 10.5.2.33b */
    { DE_RR_SI3_REST_OCT, "SI 3 Rest Octets" },                         /* [3] 10.5.2.34 */
    { DE_RR_SI4_REST_OCT, "SI 4 Rest Octets" },                         /* [3] 10.5.2.35 */
    { DE_RR_SI6_REST_OCT, "SI 6 Rest Octets" },                         /* [3] 10.5.2.35a */
/* [3] 10.5.2.36 SI 7 Rest Octets
 * [3] 10.5.2.37 SI 8 Rest Octets
 * [3] 10.5.2.37a SI 9 Rest Octets
 */
    { DE_RR_SI13_REST_OCT, "SI 13 Rest Octets" },                       /* [3] 10.5.2.37b */
/* [3] 10.5.2.37c (void)
 * [3] 10.5.2.37d (void)
 * [3] 10.5.2.37e SI 16 Rest Octets
 * [3] 10.5.2.37f SI 17 Rest Octets
 * [3] 10.5.2.37g SI 19 Rest Octets
 * [3] 10.5.2.37h SI 18 Rest Octets
 * [3] 10.5.2.37i SI 20 Rest Octets */
    { DE_RR_SI21_REST_OCT, "SI 21 Rest Octets" },                       /* [3] 10.5.2.37m */
    { DE_RR_STARTING_TIME, "Starting Time" },                           /* [3] 10.5.2.38 Starting Time  */
    { DE_RR_TIMING_ADV, "Timing Advance" },                             /* [3] 10.5.2.40 Timing Advance */
    { DE_RR_TIME_DIFF, "Time Difference" },                             /* [3] 10.5.2.41 Time Difference */
    { DE_RR_TLLI, "TLLI" },                                             /* [3] 10.5.2.41a TLLI  */
    { DE_RR_TMSI_PTMSI, "TMSI/P-TMSI" },                                /* [3] 10.5.2.42 TMSI/P-TMSI */
    { DE_RR_VGCS_TAR_MODE_IND, "VGCS target mode Indication" },         /* [3] 10.5.2.42a */
    /* Pos 40 */
    { DE_RR_VGCS_CIP_PAR, "VGCS Ciphering Parameters" },                /* [3] 10.5.2.42b */
    { DE_RR_WAIT_IND, "Wait Indication" },                              /* [3] 10.5.2.43 Wait Indication */
/* [3] 10.5.2.44 SI10 rest octets $(ASCI)$ */
    { DE_RR_EXT_MEAS_RESULT, "Extended Measurement Results" },          /* [3] 10.5.2.45 Extended Measurement Results */
    { DE_RR_EXT_MEAS_FREQ_LIST, "Extended Measurement Frequency List" },/* [3] 10.5.2.46 Extended Measurement Frequency List */
    { DE_RR_SUS_CAU, "Suspension Cause" },                              /* [3] 10.5.2.47                                */
    { DE_RR_APDU_ID, "APDU ID" },                                       /* [3] 10.5.2.48 APDU ID */
    { DE_RR_APDU_FLAGS, "APDU Flags" },                                 /* [3] 10.5.2.49 APDU Flags */
    { DE_RR_APDU_DATA, "APDU Data" },                                   /* [3] 10.5.2.50 APDU Data */
    { DE_RR_HO_TO_UTRAN_CMD, "Handover to UTRAN Command" },             /* [3] 10.5.2.51 Handover To UTRAN Command */
/* [3] 10.5.2.52 Handover To cdma2000 Command
 * [3] 10.5.2.53 (void)
 * [3] 10.5.2.54 (void)
 * [3] 10.5.2.55 (void)
 * [3] 10.5.2.56 3G Target Cell */
    { DE_RR_SERV_SUP, "Service Support" },                              /* [3] 10.5.2.57    */
    /* 10.5.2.58 MBMS p-t-m Channel Description */
    { DE_RR_DED_SERV_INF, "Dedicated Service Information" },            /* [3] 10.5.2.59    */
/*
 * 10.5.2.60 MPRACH Description
 * 10.5.2.61 Restriction Timer
 * 10.5.2.62 MBMS Session Identity
 * 10.5.2.63 Reduced group or broadcast call reference
 * 10.5.2.64 Talker Priority status
 * 10.5.2.65 Talker Identity
 * 10.5.2.66 Token
 * 10.5.2.67 PS Cause
 * 10.5.2.68 VGCS AMR Configuration
 */
    { DE_RR_CARRIER_IND, "Carrier Indication" },                        /* 10.5.2.69 Carrier Indication */
/*
 * 10.5.2.70 SI10bis Rest Octets
 * 10.5.2.71 SI10ter Rest Octets
 * 10.5.2.72 Application Data
 * 10.5.2.73 Data Identity
 * 10.5.2.74 Uplink Access Indication
 * 10.5.2.75 Individual priorities
 */
    { DE_RR_FEATURE_INDICATOR, "Feature Indicator" },                   /* 10.5.2.76 Feature Indicator */
/*
 * 10.5.2.77 (void)
 * 10.5.2.78 IPA Rest Octets
 * 10.5.2.79 DL-DCCH-Message
 * 10.5.2.80 CN to MS transparent information
 * 10.5.2.81 PLMN Index
 */
    { DE_RR_EXTENDED_TSC_SET, "Extended TSC Set" },                     /* 10.5.2.82 Extended TSC Set */
    { DE_RR_EC_REQUEST_REFERENCE, "EC Request Reference" },             /* 10.5.2.83 EC Request reference */
    { DE_RR_EC_PKT_CH_DSC1, "EC Packet Channel Description Type 1" },   /* 10.5.2.84 EC Packet Channel Description Type 1 */
    { DE_RR_EC_PKT_CH_DSC2, "EC Packet Channel Description Type 2" },   /* 10.5.2.85 EC Packet Channel Description Type 2 */
    { DE_RR_EC_FUA, "EC Fixed Uplink Allocation"},                      /* 10.5.2.86 EC Fixed Uplink Allocation */
    {    0, NULL }
};
value_string_ext gsm_rr_elem_strings_ext = VALUE_STRING_EXT_INIT(gsm_rr_elem_strings);

static const char* gsm_rr_rest_octets_elem_strings[] = {
    /* RR Rest Octets information elements */
    "UTRAN FDD Description",
    "UTRAN TDD Description",
    "3G Measurement Parameters Description",
    "3G Additional Measurement Parameters Description",
    "Measurement Parameters Description",
    "GPRS Real Time Difference Description",
    "GPRS BSIC Description",
    "GPRS Report Priority Description",
    "GPRS Measurement Parameters Description",
    "NC Measurement Parameters",
    "SI2q Extension Information",
    "CCN Support Description",
    "3G Neighbour Cell Description",
    "FDD Cell Information Field",
    "TDD Cell Information Field",
    "GPRS 3G Measurement Parameters Description",
    "3G Additional Measurement Parameters Description 2",
    "Priority and E-UTRAN Parameters Description",
    "Serving Cell Priority Parameters Description",
    "3G Priority Parameters Description",
    "UTRAN Priority Parameters",
    "E-UTRAN Parameters Description",
    "E-UTRAN Neighbour Cells",
    "E-UTRAN Not Allowed Cells",
    "E-UTRAN PCID to TA mapping",
    "3G CSG Description",
    "E-UTRAN CSG Description",
    "Optional Selection Parameters",
    "GPRS Indicator",
    "SI4 Rest Octets_O",
    "SI4 Rest Octets_S",
    "LSA Parameters",
    "LSA ID Information",
    "PCH and NCH Info",
    "VBS/VGCS Options",
    "GPRS Mobile Allocation",
    "GPRS Cell Options",
    "GPRS Cell Options Extension Information",
    "GPRS Power Control Parameters",
    "PBCCH Description",
    "GSM Description",
    "Real Time Difference Description",
    "BSIC Description",
    "Report Priority Description",
    "CDMA2000 Description",
    "Serving cell data",
    "Repeated Invalid BSIC Information",
    "Bitmap Type Reporting",
    "3G Supplementary Parameters Description",
    "UTRAN Measurement Control Parameters",
    "EGPRS Packet Uplink Assignment",
    "Multiple Blocks Packet Downlink Assignment",
    "Temporary Mobile Group Identity (TMGI)",
    "Packet Timing Advance",
    "Packet Uplink Assignment",
    "Packet Downlink Assignment",
    "Second Part Packet Assignment",
    "REPORTING QUANTITY",
    "E-UTRAN Measurement Report",
    "E-UTRAN Description",
    "EAB Parameters",
};


/* RR cause value (octet 2) 3GPP TS 24.018, section 10.5.2.31 */
/* public symbol for packet-gsm_gsup.c */
static const value_string gsm_a_rr_RR_cause_vals[] = {
    {    0, "Normal event"},
    {    1, "Abnormal release, unspecified"},
    {    2, "Abnormal release, channel unacceptable"},
    {    3, "Abnormal release, timer expired"},
    {    4, "Abnormal release, no activity on the radio path"},
    {    5, "Preemptive release"},
    {    6, "UTRAN configuration unknown"},
    {    8, "Handover impossible, timing advance out of range"},
    {    9, "Channel mode unacceptable"},
    {   10, "Frequency not implemented"},
    {   11, "Originator or talker leaving group call area"},
    {   12, "Lower layer failure"},
    { 0x41, "Call already cleared"},
    { 0x5f, "Semantically incorrect message"},
    { 0x60, "Invalid mandatory information"},
    { 0x61, "Message type non-existent or not implemented"},
    { 0x62, "Message type not compatible with protocol state"},
    { 0x64, "Conditional IE error"},
    { 0x65, "No cell allocation available"},
    { 0x6f, "Protocol error unspecified"},
    { 0, NULL }
};

static const value_string gsm_a_rr_algorithm_identifier_vals[] = {
    { 0, "Cipher with algorithm A5/1"},
    { 1, "Cipher with algorithm A5/2"},
    { 2, "Cipher with algorithm A5/3"},
    { 3, "Cipher with algorithm A5/4"},
    { 4, "Cipher with algorithm A5/5"},
    { 5, "Cipher with algorithm A5/6"},
    { 6, "Cipher with algorithm A5/7"},
    { 7, "Reserved"},
    { 0, NULL }
};

static const value_string gsm_a_rr_ec_cc_vals[] = {
    {0x00, "Coverage Class 1"},
    {0x01, "Coverage Class 2"},
    {0x02, "Coverage Class 3"},
    {0x03, "Coverage Class 4"},
    {0, NULL }
};

#define DTAP_PD_MASK            0x0f
#define DTAP_SKIP_MASK          0xf0
#define DTAP_TI_MASK            DTAP_SKIP_MASK
#define DTAP_TIE_PRES_MASK      0x07                    /* after TI shifted to right */
#define DTAP_TIE_MASK           0x7f

#define DTAP_RR_IEI_MASK        0xff

/* Initialize the protocol and registered fields */
static int proto_a_rr;
static int proto_a_ccch;
static int proto_a_ec_ccch;
static int proto_a_sacch;
static int proto_a_rach;

static int hf_gsm_a_dtap_msg_rr_type;
static int hf_gsm_a_dtap_msg_rr_ec_ccch_type;

int hf_gsm_a_rr_elem_id;

static int hf_gsm_a_rr_short_pd_msg_type;
static int hf_gsm_a_rr_short_pd;
static int hf_gsm_a_rr_short_l2_header;


static int hf_gsm_a_rr_bcc;
static int hf_gsm_a_rr_ncc;
static int hf_gsm_a_rr_bcch_arfcn;
static int hf_gsm_a_rr_range_nb;
static int hf_gsm_a_rr_range_lower;
static int hf_gsm_a_rr_range_higher;
static int hf_gsm_a_rr_ba_freq;
static int hf_gsm_a_rr_ho_ref_val;
static int hf_gsm_a_rr_L2_pseudo_len;
static int hf_gsm_a_rr_ba_used;
static int hf_gsm_a_rr_dtx_used;
static int hf_gsm_a_rr_3g_ba_used;
static int hf_gsm_a_rr_meas_valid;
static int hf_gsm_a_rr_rxlev_full_serv_cell;
static int hf_gsm_a_rr_rxlev_sub_serv_cell;
static int hf_gsm_a_rr_si23_ba_used;
static int hf_gsm_a_rr_rxqual_full_serv_cell;
static int hf_gsm_a_rr_rxqual_sub_serv_cell;
static int hf_gsm_a_rr_no_ncell_m;
static int hf_gsm_a_rr_rxlev_ncell;
static int hf_gsm_a_rr_bcch_freq_ncell;
static int hf_gsm_a_rr_bsic_ncell;
static int hf_gsm_a_rr_mobile_time_difference;
static int hf_gsm_a_rr_pow_cmd_atc;
static int hf_gsm_a_rr_pow_cmd_epc;
static int hf_gsm_a_rr_page_mode;
static int hf_gsm_a_rr_dedicated_mode_or_tbf;
static int hf_gsm_a_rr_pow_cmd_fpcepc;
static int hf_gsm_a_rr_pow_cmd_powlev;
static int hf_gsm_a_rr_sync_ind_nci;
static int hf_gsm_a_rr_sync_ind_rot;
static int hf_gsm_a_rr_sync_ind_si;
static int hf_gsm_a_rr_format_id;
static int hf_gsm_a_rr_format_id2;
static int hf_gsm_a_rr_channel_mode;
static int hf_gsm_a_rr_channel_mode2;
static int hf_gsm_a_rr_sc;
static int hf_gsm_a_rr_algorithm_id;
static int hf_gsm_a_rr_cr;
static int hf_gsm_a_rr_multirate_speech_ver;
static int hf_gsm_a_rr_NCSB;
static int hf_gsm_a_rr_ICMI;
static int hf_gsm_a_rr_start_mode;
static int hf_gsm_a_rr_timing_adv;
static int hf_gsm_a_rr_time_diff;
static int hf_gsm_a_rr_tlli;
static int hf_gsm_a_rr_nri;
static int hf_gsm_a_rr_target_mode;
static int hf_gsm_a_rr_wait_indication;
static int hf_gsm_a_rr_seq_code;
static int hf_gsm_a_rr_group_cipher_key_number;
static int hf_gsm_a_rr_MBMS_multicast;
static int hf_gsm_a_rr_MBMS_broadcast;
static int hf_gsm_a_rr_last_segment;
static int hf_gsm_a_rr_carrier_ind;
static int hf_gsm_a_rr_ra;
static int hf_gsm_a_rr_T1prim;
static int hf_gsm_a_rr_T3;
static int hf_gsm_a_rr_T2;
static int hf_gsm_a_rr_tbf_T1prim;
static int hf_gsm_a_rr_tbf_T3;
static int hf_gsm_a_rr_tbf_T2;
static int hf_gsm_a_rr_rfn;
static int hf_gsm_a_rr_RR_cause;
static int hf_gsm_a_rr_cm_cng_msg_req;
static int hf_gsm_a_rr_utran_cm_cng_msg_req;
static int hf_gsm_a_rr_cdma2000_cm_cng_msg_req;
static int hf_gsm_a_rr_geran_iu_cm_cng_msg_req;
int hf_gsm_a_rr_chnl_needed_ch1;
static int hf_gsm_a_rr_chnl_needed_ch2;
static int hf_gsm_a_rr_chnl_needed_ch3;
static int hf_gsm_a_rr_chnl_needed_ch4;
static int hf_gsm_a_rr_pkt_estab_cause;
static int hf_gsm_a_rr_peak_throughput_class;
static int hf_gsm_a_rr_radio_priority;
static int hf_gsm_a_rr_llc_pdu_type;
static int hf_gsm_a_rr_rlc_octet_count;
static int hf_gsm_a_rr_rlc_non_pers_mode_cap;
static int hf_gsm_a_rr_reduced_latency_cap;
static int hf_gsm_a_rr_ul_egprs2;
static int hf_gsm_a_rr_dl_egprs2;
static int hf_gsm_a_rr_emst_ms_cap;
static int hf_gsm_a_rr_suspension_cause;
static int hf_gsm_a_rr_apdu_id;
static int hf_gsm_a_rr_apdu_flags_cr;
static int hf_gsm_a_rr_apdu_flags_fs;
static int hf_gsm_a_rr_apdu_flags_ls;
static int hf_gsm_a_rr_apdu_data;
static int hf_gsm_a_rr_set_of_amr_codec_modes_v1_b8;
static int hf_gsm_a_rr_set_of_amr_codec_modes_v1_b7;
static int hf_gsm_a_rr_set_of_amr_codec_modes_v1_b6;
static int hf_gsm_a_rr_set_of_amr_codec_modes_v1_b5;
static int hf_gsm_a_rr_set_of_amr_codec_modes_v1_b4;
static int hf_gsm_a_rr_set_of_amr_codec_modes_v1_b3;
static int hf_gsm_a_rr_set_of_amr_codec_modes_v1_b2;
static int hf_gsm_a_rr_set_of_amr_codec_modes_v1_b1;
static int hf_gsm_a_rr_set_of_amr_codec_modes_v2_b5;
static int hf_gsm_a_rr_set_of_amr_codec_modes_v2_b4;
static int hf_gsm_a_rr_set_of_amr_codec_modes_v2_b3;
static int hf_gsm_a_rr_set_of_amr_codec_modes_v2_b2;
static int hf_gsm_a_rr_set_of_amr_codec_modes_v2_b1;
static int hf_gsm_a_rr_amr_threshold;
static int hf_gsm_a_rr_amr_hysteresis;
static int hf_gsm_a_rr_pwrc;
static int hf_gsm_a_rr_dtx_bcch;
static int hf_gsm_a_rr_dtx_sacch;
static int hf_gsm_a_rr_radio_link_timeout;
static int hf_gsm_a_rr_cell_reselect_hyst;
static int hf_gsm_a_rr_ms_txpwr_max_cch;
static int hf_gsm_a_rr_acs;
static int hf_gsm_a_rr_neci;
static int hf_gsm_a_rr_rxlev_access_min;
static int hf_gsm_a_rr_mscr;
static int hf_gsm_a_rr_att;
static int hf_gsm_a_rr_ccch_conf;
static int hf_gsm_a_rr_cbq3;
static int hf_gsm_a_rr_bs_pa_mfrms;
static int hf_gsm_a_rr_bs_ag_blks_res;
int hf_gsm_a_rr_t3212;
static int hf_gsm_a_rr_gsm_band;
static int hf_gsm_a_rr_arfcn_first;
static int hf_gsm_a_rr_band_offset;
static int hf_gsm_a_rr_arfcn_range;
static int hf_gsm_a_rr_lowest_arfcn;
static int hf_gsm_a_rr_inc_skip_arfcn;
static int hf_gsm_a_rr_gprs_resumption_ack;
static int hf_gsm_a_rr_ext_ind;
static int hf_gsm_a_rr_ba_ind;
static int hf_gsm_a_rr_multiband_reporting;
static int hf_gsm_a_rr_ncc_permitted;
static int hf_gsm_a_rr_max_retrans;
static int hf_gsm_a_rr_tx_integer;
static int hf_gsm_a_rr_cell_barr_access;
static int hf_gsm_a_rr_re;
static int hf_gsm_a_rr_acc;
static int hf_gsm_a_rr_nch_position;
static int hf_gsm_a_rr_si2ter_mp_change_mark;
static int hf_gsm_a_rr_si2ter_3g_change_mark;
static int hf_gsm_a_rr_si2ter_index;
static int hf_gsm_a_rr_si2ter_count;
static int hf_gsm_a_rr_fdd_uarfcn;
static int hf_gsm_a_rr_bandwidth_fdd;
static int hf_gsm_a_rr_tdd_uarfcn;
static int hf_gsm_a_rr_bandwidth_tdd;
static int hf_gsm_a_rr_arfcn;
static int hf_gsm_a_rr_bsic;
static int hf_gsm_a_rr_qsearch_i;
static int hf_gsm_a_rr_fdd_qoffset;
static int hf_gsm_a_rr_fdd_qmin;
static int hf_gsm_a_rr_tdd_qoffset;
static int hf_gsm_a_rr_fdd_qmin_offset;
static int hf_gsm_a_rr_fdd_rscpmin;
static int hf_gsm_a_rr_3g_ba_ind;
static int hf_gsm_a_rr_mp_change_mark;
static int hf_gsm_a_rr_si2quater_index;
static int hf_gsm_a_rr_si2quater_count;
static int hf_gsm_a_rr_si21_change_mark;
static int hf_gsm_a_rr_si21_index;
static int hf_gsm_a_rr_si21_count;
static int hf_gsm_a_rr_gsm_report_type;
static int hf_gsm_a_rr_serving_band_reporting;
static int hf_gsm_a_rr_frequency_scrolling;
static int hf_gsm_a_rr_rep_priority;
static int hf_gsm_a_rr_report_type;
static int hf_gsm_a_rr_reporting_rate;
static int hf_gsm_a_rr_invalid_bsic_reporting;
static int hf_gsm_a_rr_scale_ord;
static int hf_gsm_a_rr_900_reporting_offset;
static int hf_gsm_a_rr_900_reporting_threshold;
static int hf_gsm_a_rr_1800_reporting_offset;
static int hf_gsm_a_rr_1800_reporting_threshold;
static int hf_gsm_a_rr_400_reporting_offset;
static int hf_gsm_a_rr_400_reporting_threshold;
static int hf_gsm_a_rr_1900_reporting_offset;
static int hf_gsm_a_rr_1900_reporting_threshold;
static int hf_gsm_a_rr_850_reporting_offset;
static int hf_gsm_a_rr_850_reporting_threshold;
static int hf_gsm_a_rr_network_control_order;
static int hf_gsm_a_rr_nc_non_drx_period;
static int hf_gsm_a_rr_nc_reporting_period_i;
static int hf_gsm_a_rr_nc_reporting_period_t;
static int hf_gsm_a_rr_index_start_3g;
static int hf_gsm_a_rr_absolute_index_start_emr;
static int hf_gsm_a_rr_qsearch_c_initial;
static int hf_gsm_a_rr_fdd_rep_quant;
static int hf_gsm_a_rr_fdd_multirat_reporting;
static int hf_gsm_a_rr_tdd_multirat_reporting;
static int hf_gsm_a_rr_qsearch_p;
static int hf_gsm_a_rr_3g_search_prio;
static int hf_gsm_a_rr_fdd_reporting_offset;
static int hf_gsm_a_rr_fdd_reporting_threshold_rscp;
static int hf_gsm_a_rr_fdd_reporting_threshold_ecn0;
static int hf_gsm_a_rr_tdd_reporting_offset;
static int hf_gsm_a_rr_tdd_reporting_threshold_rscp;
static int hf_gsm_a_rr_tdd_reporting_threshold_ecn0;
static int hf_gsm_a_rr_fdd_reporting_threshold_2;
static int hf_gsm_a_rr_3g_ccn_active;
static int hf_gsm_a_rr_700_reporting_offset;
static int hf_gsm_a_rr_700_reporting_threshold;
static int hf_gsm_a_rr_810_reporting_offset;
static int hf_gsm_a_rr_810_reporting_threshold;
static int hf_gsm_a_rr_cbq;
static int hf_gsm_a_rr_cell_reselect_offset;
static int hf_gsm_a_rr_temporary_offset;
static int hf_gsm_a_rr_penalty_time;
static int hf_gsm_a_rr_gprs_ra_colour;
static int hf_gsm_a_rr_si13_position;
static int hf_gsm_a_rr_power_offset;
static int hf_gsm_a_rr_si2quater_position;
static int hf_gsm_a_rr_si13alt_position;
static int hf_gsm_a_rr_si21_position;
static int hf_gsm_a_rr_prio_thr;
static int hf_gsm_a_rr_lsa_offset;
static int hf_gsm_a_rr_cell_id;
static int hf_gsm_a_rr_paging_channel_restructuring;
static int hf_gsm_a_rr_nln_sacch;
static int hf_gsm_a_rr_nln_status_sacch;
static int hf_gsm_a_rr_nln_pch;
static int hf_gsm_a_rr_nln_status_pch;
static int hf_gsm_a_rr_vbs_vgcs_inband_notifications;
static int hf_gsm_a_rr_vbs_vgcs_inband_pagings;
static int hf_gsm_a_rr_rac;
static int hf_gsm_a_rr_max_lapdm;
static int hf_gsm_a_rr_gprs_ms_txpwr_max_ccch;
static int hf_gsm_a_rr_dedicated_mode_mbms_notification_support;
static int hf_gsm_a_rr_mnci_support;
static int hf_gsm_a_rr_amr_config;
static int hf_gsm_a_rr_bcch_change_mark;
static int hf_gsm_a_rr_si_change_field;
static int hf_gsm_a_rr_si13_change_mark;
static int hf_gsm_a_rr_hsn;
static int hf_gsm_a_rr_rfl_number;
static int hf_gsm_a_rr_arfcn_index;
static int hf_gsm_a_rr_ma_length;
static int hf_gsm_a_rr_psi1_repeat_period;
static int hf_gsm_a_rr_pbcch_pb;
static int hf_gsm_a_rr_pbcch_tsc;
static int hf_gsm_a_rr_pbcch_tn;
static int hf_gsm_a_rr_spgc_ccch_sup;
static int hf_gsm_a_rr_priority_access_thr;
static int hf_gsm_a_rr_nmo;
static int hf_gsm_a_rr_t3168;
static int hf_gsm_a_rr_t3192;
static int hf_gsm_a_rr_drx_timer_max;
static int hf_gsm_a_rr_access_burst_type;
static int hf_gsm_a_rr_control_ack_type;
static int hf_gsm_a_rr_bs_cv_max;
static int hf_gsm_a_rr_pan_dec;
static int hf_gsm_a_rr_pan_inc;
static int hf_gsm_a_rr_pan_max;
static int hf_gsm_a_rr_egprs_packet_channel_request;
static int hf_gsm_a_rr_bep_period;
static int hf_gsm_a_rr_pfc_feature_mode;
static int hf_gsm_a_rr_dtm_support;
static int hf_gsm_a_rr_bss_paging_coordination;
static int hf_gsm_a_rr_ccn_active;
static int hf_gsm_a_rr_nw_ext_utbf;
static int hf_gsm_a_rr_multiple_tbf_capability;
static int hf_gsm_a_rr_ext_utbf_no_data;
static int hf_gsm_a_rr_dtm_enhancements_capability;
static int hf_gsm_a_rr_reduced_latency_access;
static int hf_gsm_a_rr_alpha;
static int hf_gsm_a_rr_t_avg_w;
static int hf_gsm_a_rr_t_avg_t;
static int hf_gsm_a_rr_pc_meas_chan;
static int hf_gsm_a_rr_n_avg_i;
static int hf_gsm_a_rr_sgsnr;
static int hf_gsm_a_rr_si_status_ind;
static int hf_gsm_a_rr_lb_ms_txpwr_max_cch;
static int hf_gsm_a_rr_si2n_support;
static int hf_gsm_a_rr_mi_index;
static int hf_gsm_a_rr_mi_count;
static int hf_gsm_a_rr_3g_wait;
static int hf_gsm_a_rr_qsearch_c;
static int hf_gsm_a_rr_bsic_seen;
static int hf_gsm_a_rr_scale;
static int hf_gsm_a_rr_mean_bep_gmsk;
static int hf_gsm_a_rr_mean_cv_bep;
static int hf_gsm_a_rr_nbr_rcvd_blocks;
static int hf_gsm_a_rr_reporting_quantity;
static int hf_gsm_a_rr_extended_ra;
static int hf_gsm_a_rr_access_tech_type;
static int hf_gsm_a_rr_tfi_assignment;
static int hf_gsm_a_rr_polling;
static int hf_gsm_a_rr_usf;
static int hf_gsm_a_rr_usf_granularity;
static int hf_gsm_a_rr_p0;
static int hf_gsm_a_rr_pr_mode;
static int hf_gsm_a_rr_egprs_mcs;
static int hf_gsm_a_rr_tlli_block_channel_coding;
static int hf_gsm_a_rr_bep_period2;
static int hf_gsm_a_rr_resegment;
static int hf_gsm_a_rr_egprs_window_size;
static int hf_gsm_a_rr_gamma;
static int hf_gsm_a_rr_timing_adv_index;
static int hf_gsm_a_rr_timing_adv_timeslot_num;
static int hf_gsm_a_rr_tbf_starting_time;
static int hf_gsm_a_rr_num_of_radio_block_allocated;
static int hf_gsm_a_rr_pfi;
static int hf_gsm_a_rr_mbms_service_id;
static int hf_gsm_a_rr_ms_id;
static int hf_gsm_a_rr_gprs_cs;
static int hf_gsm_a_rr_rlc_mode;
static int hf_gsm_a_rr_ta_valid;
static int hf_gsm_a_rr_link_quality_meas_mode;
static int hf_gsm_a_rr_emr_bitmap_length;
static int hf_gsm_a_rr_eutran_mr_n_eutran;
static int hf_gsm_a_rr_eutran_mr_freq_idx;
static int hf_gsm_a_rr_eutran_mr_cell_id;
static int hf_gsm_a_rr_eutran_mr_rpt_quantity;
static int hf_gsm_a_rr_ma_channel_set;
static int hf_n_range_orig_arfcn;
static int hf_gsm_a_rr_reported_timeslots;
static int hf_gsm_a_rr_tsh;
static int hf_gsm_a_rr_rtti_usf_mode;
static int hf_gsm_a_rr_pdch_pair_indic;
static int hf_gsm_a_rr_additional_usf;
static int hf_gsm_a_rr_usf_2;
static int hf_gsm_a_rr_additional_usf_2;
static int hf_gsm_a_rr_npm_transfer_time;
static int hf_gsm_a_rr_event_based_fanr;
static int hf_gsm_a_rr_dl_egprs_level;
static int hf_gsm_a_rr_eab_auth_mask;
static int hf_gsm_a_eab_subcategory;

/* Generated from convert_proto_tree_add_text.pl */
static int hf_gsm_a_rr_cell_parameter;
static int hf_gsm_a_rr_len_indicator_ms_id;
static int hf_gsm_a_rr_neighbour_cell_list_index;
static int hf_gsm_a_rr_mcc;
static int hf_gsm_a_rr_pcid_pattern;
static int hf_gsm_a_rr_where;
static int hf_gsm_a_rr_ba_index_start_bsic;
static int hf_gsm_a_rr_bitmap;
static int hf_gsm_a_rr_extension_length;
static int hf_gsm_a_rr_scrambling_code;
static int hf_gsm_a_rr_mnc;
static int hf_gsm_a_rr_nr_of_fdd_cells;
static int hf_gsm_a_rr_ba_index_start_rtd_present;
static int hf_gsm_a_rr_sync_case_tstd;
static int hf_gsm_a_rr_hopping_channel_maio;
static int hf_gsm_a_rr_hopping_channel_ma_num_ind;
static int hf_gsm_a_rr_hopping_channel_change_mark_1;
static int hf_gsm_a_rr_hopping_channel;
static int hf_gsm_a_rr_rxlev_carrier;
static int hf_gsm_a_rr_mobile_network_code;
static int hf_gsm_a_rr_packet_channel_type;
static int hf_gsm_a_rr_timeslot;
static int hf_gsm_a_rr_lsa_id;
static int hf_gsm_a_rr_ciphering_key_seq_num;
static int hf_gsm_a_rr_diversity;
static int hf_gsm_a_rr_maio;
static int hf_gsm_a_rr_mobile_country_code;
static int hf_gsm_a_rr_short_lsa_id;
static int hf_gsm_a_rr_number_remaining_bsic;
static int hf_gsm_a_rr_number_cells;
static int hf_gsm_a_rr_padding;
static int hf_gsm_a_rr_training_sequence;
static int hf_gsm_a_rr_psc_pattern_present;
static int hf_gsm_a_rr_nr_of_tdd_cells;
static int hf_gsm_a_rr_message_elements;
static int hf_gsm_a_rr_bitmap_length;
static int hf_gsm_a_rr_diversity_tdd;
static int hf_gsm_a_rr_spare;
static int hf_gsm_a_rr_single_channel_arfcn;
static int hf_gsm_a_rr_rtd_index;
static int hf_gsm_a_rr_arfcn_list;
static int hf_gsm_a_rr_da_list;
static int hf_gsm_a_rr_ua_list;
static int hf_gsm_a_rr_field_bit_long;
static int hf_gsm_a_rr_ma_bitmap;
static int hf_gsm_a_rr_inc_arfcn_bitmap;
static int hf_gsm_a_rr_ccn_supported;
static int hf_gsm_a_rr_pbcch_use_bcch;
static int hf_gsm_a_rr_ia_rest_oct_reserved;
static int hf_gsm_a_rr_tch_facch_sacchm;
static int hf_gsm_a_rr_tch_facch_sacchf;
static int hf_gsm_a_rr_tch_facch_sacchm_bi;
static int hf_gsm_a_rr_tch_acch;
static int hf_gsm_a_rr_sdcch4_sdcchc4_cbch;
static int hf_gsm_a_rr_sdcch8_sdcchc8_cbch;
static int hf_gsm_a_rr_tch_facchf_sacchm_bi;
static int hf_gsm_a_rr_tch_facchf_sacchm_uni;
static int hf_gsm_a_rr_tchf_acchs;
static int hf_gsm_a_rr_unknown_channel_info;
static int hf_gsm_a_rr_subchannel;
static int hf_gsm_a_rr_w_elements;
static int hf_gsm_a_rr_ra_est_cause;
static int hf_gsm_a_rr_ra_rand_ref;


/* gsm_rr_csn_flag() fields */
static int hf_gsm_a_rr_fdd_repeat_freq;
static int hf_gsm_a_rr_tdd_repeat_freq;
static int hf_gsm_a_rr_repeat_range_limit;
static int hf_gsm_a_rr_repeat_ba_frequency;
static int hf_gsm_a_rr_repeat_gsm_desc;
static int hf_gsm_a_rr_band_indicator;
static int hf_gsm_a_rr_repeat_utran_fdd_desc;
static int hf_gsm_a_rr_bandwidth_fdd_present;
static int hf_gsm_a_rr_fdd_cell_info_present;
static int hf_gsm_a_rr_fdd_indic0;
static int hf_gsm_a_rr_repeat_utran_tdd_desc;
static int hf_gsm_a_rr_bandwidth_tdd_present;
static int hf_gsm_a_rr_tdd_cell_info_present;
static int hf_gsm_a_rr_tdd_indic0;
static int hf_gsm_a_rr_pfi_present;
static int hf_gsm_a_rr_msms_procedures;
static int hf_gsm_a_rr_repeat_dynamic_arfcn_mapping;
static int hf_gsm_a_rr_pan_bits_present;
static int hf_gsm_a_rr_optional_extensions_present;
static int hf_gsm_a_rr_egprs_supported;
static int hf_gsm_a_rr_access_tech_req;
static int hf_gsm_a_rr_repeated_umts_tdd_neighbour_cells;
static int hf_gsm_a_rr_cdma2000_reporting_threshold;
static int hf_gsm_a_rr_ccn_support_description;
static int hf_gsm_a_rr_eutran_tdd_measurement_report_offset_present;
static int hf_gsm_a_rr_3g_wait_present;
static int hf_gsm_a_rr_packet_discriminator_bit;
static int hf_gsm_a_rr_3g_measurement_control_parameters_description;
static int hf_gsm_a_rr_bts_power_control_mode;
static int hf_gsm_a_rr_fdd_reporting_threshold_2_present;
static int hf_gsm_a_rr_gprs_measurement_parameters_description;
static int hf_gsm_a_rr_repeated_earfcn;
static int hf_gsm_a_rr_repeated_pcid_group;
static int hf_gsm_a_rr_repeating_pcid_group;
static int hf_gsm_a_rr_tfi_allocation_type;
static int hf_gsm_a_rr_fdd_cell_info_param_value0;
static int hf_gsm_a_rr_bsic_description;
static int hf_gsm_a_rr_maio_present;
static int hf_gsm_a_rr_eutran_pcid_bitmap_group_present;
static int hf_gsm_a_rr_repeated_utran_frequency_index;
static int hf_gsm_a_rr_timing_adv_present;
static int hf_gsm_a_rr_eutran_tdd_reporting;
static int hf_gsm_a_rr_eutran_reporting;
static int hf_gsm_a_rr_eutran_csg_description;
static int hf_gsm_a_rr_pcid_pattern_present;
static int hf_gsm_a_rr_later_r97_version_reserved_bit;
static int hf_gsm_a_rr_utran_fdd_description_earlier_version_bit_reserved1;
static int hf_gsm_a_rr_3g_priority_parameters_description;
static int hf_gsm_a_rr_serving_cell_priority_parameters_description;
static int hf_gsm_a_rr_850_reporting_present;
static int hf_gsm_a_rr_tfi_assignment_present;
static int hf_gsm_a_rr_p0_present;
static int hf_gsm_a_rr_early_r97_version_reserved_bit;
static int hf_gsm_a_rr_tdd_reporting_parameters;
static int hf_gsm_a_rr_eutran_tdd_reporting_present;
static int hf_gsm_a_rr_repeated_eutran_neighbour_cells;
static int hf_gsm_a_rr_eutran_tdd_reporting_offset_present;
static int hf_gsm_a_rr_bitmap_type_reporting;
static int hf_gsm_a_rr_gprs_mobile_allocation;
static int hf_gsm_a_rr_default_utran_priority_parameters;
static int hf_gsm_a_rr_tfi_multiblock;
static int hf_gsm_a_rr_hopping_case;
static int hf_gsm_a_rr_repeated_umts_tdd_neighbour_cells_earlier_version_bit_reserved;
static int hf_gsm_a_rr_gprs_3g_measurement_parameters_description;
static int hf_gsm_a_rr_nc_measurement_parameters;
static int hf_gsm_a_rr_lb_ms_txpwr_max_cch_present;
static int hf_gsm_a_rr_810_reporting;
static int hf_gsm_a_rr_thresh_utran_low_present;
static int hf_gsm_a_rr_pbcch;
static int hf_gsm_a_rr_packet_downlink_assignment;
static int hf_gsm_a_rr_repeated_csg_pci_split;
static int hf_gsm_a_rr_700_reporting;
static int hf_gsm_a_rr_fdd_reporting_parameters;
static int hf_gsm_a_rr_compressed_inter_rat_handover_info;
static int hf_gsm_a_rr_rtd12;
static int hf_gsm_a_rr_utran_tdd_description;
static int hf_gsm_a_rr_3g_csg_desc_technology;
static int hf_gsm_a_rr_reporting_quantity_present;
static int hf_gsm_a_rr_absolute_index_start_emr_present;
static int hf_gsm_a_rr_downlink_uplink;
static int hf_gsm_a_rr_extended_ra_present;
static int hf_gsm_a_rr_downlink_uplink_discriminator_bit;
static int hf_gsm_a_rr_timing_advance_index_timeslot;
static int hf_gsm_a_rr_3g_reporting_quantity;
static int hf_gsm_a_rr_additional_rtd;
static int hf_gsm_a_rr_repeated_umts_fdd_neighbour_cells;
static int hf_gsm_a_rr_1800_reporting_present;
static int hf_gsm_a_rr_repeated_eutran_pcid_ta_mapping;
static int hf_gsm_a_rr_arfcn_index_list;
static int hf_gsm_a_rr_tdd_multirat_reporting_present;
static int hf_gsm_a_rr_eutran_reporting_quantity;
static int hf_gsm_a_rr_repeated_eutran_not_allowed_cells;
static int hf_gsm_a_rr_si13_change_mark_present;
static int hf_gsm_a_rr_eutran_fdd_reporting_present;
static int hf_gsm_a_rr_hopping_flag;
static int hf_gsm_a_call_prio_present;
static int hf_gsm_a_rr_repeated_umts_fdd_neighbour_cells_earlier_version_bit_reserved;
static int hf_gsm_a_rr_fdd_multirat_reporting_present;
static int hf_gsm_a_rr_repeated_eutran_measurement_control_parameters;
static int hf_gsm_a_rr_timing_adv_index_present;
static int hf_gsm_a_rr_real_time_difference_description;
static int hf_gsm_a_rr_tdd_cell_info_param_value0;
static int hf_gsm_a_rr_gprs_report_priority_description;
static int hf_gsm_a_rr_eutran_fdd_reporting_threshold_2_present;
static int hf_gsm_a_rr_timing_advance_index;
static int hf_gsm_a_rr_utran_fdd_description;
static int hf_gsm_a_rr_repeated_rtd;
static int hf_gsm_a_rr_fdd_reporting_offset_present;
static int hf_gsm_a_rr_mcc_mnc_parameters;
static int hf_gsm_a_rr_packet_uplink_assignment;
static int hf_gsm_a_rr_utran_frequency_index_present;
static int hf_gsm_a_rr_earlier_version_reserved_bit;
static int hf_gsm_a_rr_psc_present;
static int hf_gsm_a_rr_serving_cell_data;
static int hf_gsm_a_rr_utran_tdd_description_earlier_version_bit_reserved2;
static int hf_gsm_a_rr_repeated_rtd_frequency;
static int hf_gsm_a_rr_pr_mode_present;
static int hf_gsm_a_rr_eutran_default_measurement_control_eutran_present;
static int hf_gsm_a_rr_3g_additional_measurement_parameters_description_2;
static int hf_gsm_a_rr_e_utran_measurement_report;
static int hf_gsm_a_rr_3g_neighbour_cell_description;
static int hf_gsm_a_rr_400_reporting_present;
static int hf_gsm_a_rr_gamma_present;
static int hf_gsm_a_rr_additional_lsa_id;
static int hf_gsm_a_rr_tdd_information;
static int hf_gsm_a_rr_utran_priority_present;
static int hf_gsm_a_rr_utran_qrxlevmin_present;
static int hf_gsm_a_rr_repeated_csg_fdd_uarfcn;
static int hf_gsm_a_rr_arfcn_present;
static int hf_gsm_a_rr_cdma2000_multirat_reporting;
static int hf_gsm_a_rr_si13alt_position_present;
static int hf_gsm_a_rr_3g_csg_description;
static int hf_gsm_a_rr_rtd;
static int hf_gsm_a_rr_tbf_starting_time_present;
static int hf_gsm_a_rr_eutran_fdd_reporting;
static int hf_gsm_a_rr_nc_periods;
static int hf_gsm_a_rr_index_start_3g_present;
static int hf_gsm_a_rr_repeated_pcid;
static int hf_gsm_a_rr_repeated_invalid_bsic_information;
static int hf_gsm_a_rr_repeated_utran_measurement_control_parameters_struct;
static int hf_gsm_a_rr_repeated_utran_priority_parameters;
static int hf_gsm_a_rr_measurement_parameters_description;
static int hf_gsm_a_rr_bep_period2_present;
static int hf_gsm_a_rr_serving_reporting_present;
static int hf_gsm_a_rr_alpha_present;
static int hf_gsm_a_rr_psc_pattern;
static int hf_gsm_a_rr_second_packet_assignment_discriminator_bit;
static int hf_gsm_a_rr_lsa_id_type;
static int hf_gsm_a_rr_fdd_parameters;
static int hf_gsm_a_rr_gprs_real_time_difference_description;
static int hf_gsm_a_rr_repeated_eutran_frequency_index;
static int hf_gsm_a_rr_3g_additional_measurement_parameters_description;
static int hf_gsm_a_rr_eutran_measurement_parameters_description;
static int hf_gsm_a_rr_mbms_assignment;
static int hf_gsm_a_rr_ms_parameters;
static int hf_gsm_a_rr_utran_fdd_description_earlier_version_bit_reserved2;
static int hf_gsm_a_rr_3g_measurement_parameters_description;
static int hf_gsm_a_rr_eutran_priority_present;
static int hf_gsm_a_rr_1900_reporting_present;
static int hf_gsm_a_rr_3g_measurement_control_parameters_description_struct;
static int hf_gsm_a_rr_eutran_parameters_description;
static int hf_gsm_a_rr_rtd6;
static int hf_gsm_a_rr_thresh_eutran_low_present;
static int hf_gsm_a_rr_allocation_type;
static int hf_gsm_a_rr_additional_rtd_struct;
static int hf_gsm_a_rr_additional_information_for_3x_auxiliary_pilot;
static int hf_gsm_a_rr_fdd_information;
static int hf_gsm_a_rr_future_extensions_of_the_2g_parameters;
static int hf_gsm_a_rr_ba_index_start_rtd;
static int hf_gsm_a_rr_utran_tdd_description_earlier_version_bit_reserved1;
static int hf_gsm_a_rr_eutran_fdd_reporting_threshold;
static int hf_gsm_a_rr_measurement_control_parameters_description;
static int hf_gsm_a_rr_eutran_measurement_bandwidth_present;
static int hf_gsm_a_rr_eutran_tdd_reporting_threshold_2_present;
static int hf_gsm_a_rr_eutran_earfcn_present;
static int hf_gsm_a_rr_eutran_qrxlevmin_present;
static int hf_gsm_a_rr_ba_index_start_bsic_present;
static int hf_gsm_a_rr_gprs_bsic_description;
static int hf_gsm_a_rr_group_channel_description;
static int hf_gsm_a_rr_cdma2000_description;
static int hf_gsm_a_rr_si_2quater_extension_information;
static int hf_gsm_a_rr_3g_supplementary_parameters_description;
static int hf_gsm_a_rr_priority_and_eutran_param_description;
static int hf_gsm_a_rr_multiband_reporting_present;
static int hf_gsm_a_rr_report_priority_description;
static int hf_gsm_a_rr_tdd_reporting_offset_present;
static int hf_gsm_a_rr_amr_config_present;
static int hf_gsm_a_rr_rand_bit_stream_ind;
static int hf_gsm_a_rr_900_reporting_present;
static int hf_gsm_a_rr_rfl_number_present;
static int hf_gsm_a_rr_eutran_fdd_reporting_offset_present;
static int hf_gsm_a_rr_repeated_csg_psc_split_struct;
static int hf_gsm_a_rr_gprs_eutran_measurement_parameters_description;
static int hf_gsm_a_rr_tdd_parameters;
static int hf_gsm_a_rr_repeat_eutran_desc;
static int hf_gsm_a_rr_peo_dsc_and_rcc_present;
static int hf_gsm_a_rr_c1_delta_present;
static int hf_gsm_a_rr_ul_xtti_tbf_assignment;
static int hf_gsm_a_rr_dl_xtti_tbf_assignment;
static int hf_gsm_a_rr_fanr_act_state;
static int hf_gsm_a_rr_encoding_selection;
static int hf_gsm_a_rr_nof_pdch_pairs;
static int hf_gsm_a_rr_npm_transfer_time_present;
static int hf_gsm_a_rr_eab_parameters;

/* gsm_rr_csn_HL_flag() fields */
static int hf_gsm_a_rr_selection_parameters;
static int hf_gsm_a_rr_break_indicator;
static int hf_gsm_a_rr_si13_contents;
static int hf_gsm_a_rr_additions_in_rel_9;
static int hf_gsm_a_rr_lsa_id_information;
static int hf_gsm_a_rr_si2quater_indicator;
static int hf_gsm_a_rr_si21_indicator;
static int hf_gsm_a_rr_additions_in_rel_4;
static int hf_gsm_a_call_prio4;
static int hf_gsm_a_rr_gprs_ms_txpwr_max_ccch_present;
static int hf_gsm_a_rr_vbs_vgcs_options;
static int hf_gsm_a_rr_si4_rest_octets_s;
static int hf_gsm_a_call_prio1;
static int hf_gsm_a_rr_si2ter_mp_change_mark_present;
static int hf_gsm_a_rr_gprs_indicator;
static int hf_gsm_a_rr_nln_pch_present;
static int hf_gsm_a_rr_early_classmark_sending;
static int hf_gsm_a_rr_chnl_needed_ch3and4;
static int hf_gsm_a_rr_additions_in_rel_5;
static int hf_gsm_a_rr_group_call_information;
static int hf_gsm_a_rr_lsa_parameters;
static int hf_gsm_a_rr_first_discriminator_bit;
static int hf_gsm_a_rr_packet_paging_procedure_3;
static int hf_gsm_a_rr_packet_paging_procedure_1;
static int hf_gsm_a_rr_chnl_needed_ch3_present;
static int hf_gsm_a_rr_power_offset_present;
static int hf_gsm_a_call_prio2;
static int hf_gsm_a_rr_additions_in_rel_6;
static int hf_gsm_a_rr_packet_paging_procedure_2;
static int hf_gsm_a_rr_3g_early_classmark_sending_restriction;
static int hf_gsm_a_rr_scheduling_if_and_where;
static int hf_gsm_a_rr_packet_page_indication_1;
static int hf_gsm_a_rr_cbq3_present;
static int hf_gsm_a_rr_second_discriminator_bit;
static int hf_gsm_a_call_prio3;
static int hf_gsm_a_rr_additions_in_release_6_present;
static int hf_gsm_a_rr_system_information_type_2ter;
static int hf_gsm_a_rr_a_compressed_inter_rat_handover_info;
static int hf_gsm_a_rr_additions_in_rel_8;
static int hf_gsm_a_rr_dtm;
static int hf_gsm_a_rr_pch_and_nch_info;
static int hf_gsm_a_rr_cell_id_present;
static int hf_gsm_a_rr_additions_in_r99;
static int hf_gsm_a_rr_mbms_procedures;
static int hf_gsm_a_rr_nch_position_present;
static int hf_gsm_a_rr_additions_in_rel_7;
static int hf_gsm_a_rr_packet_page_indication_2;
static int hf_gsm_a_rr_multiple_tbf_procedures;
static int hf_gsm_a_rr_additions_in_rel_10;
static int hf_gsm_a_rr_additions_in_rel_13;
static int hf_gsm_a_rr_si_change_alt;

/* Additions in Rel-8 */
static int hf_gsm_a_rr_3g_priority_param_desc_utran_start;
static int hf_gsm_a_rr_3g_priority_param_desc_utran_stop;
static int hf_gsm_a_rr_3g_priority_param_desc_default_utran_prio;
static int hf_gsm_a_rr_3g_priority_param_desc_default_threshold_utran;
static int hf_gsm_a_rr_3g_priority_param_desc_default_utran_qrxlevmin;
static int hf_gsm_a_rr_utran_frequency_index;
static int hf_gsm_a_rr_utran_priority;
static int hf_gsm_a_rr_thresh_utran_high;
static int hf_gsm_a_rr_thresh_utran_low;
static int hf_gsm_a_rr_utran_qrxlevmin;
static int hf_gsm_a_rr_eutran_ccn_active;
static int hf_gsm_a_rr_eutran_start;
static int hf_gsm_a_rr_eutran_stop;
static int hf_gsm_a_rr_qsearch_c_eutran_initial;
static int hf_gsm_a_rr_eutran_multirat_reporting;
static int hf_gsm_a_rr_eutran_fdd_reporting_threshold_rsrp;
static int hf_gsm_a_rr_eutran_fdd_reporting_threshold_rsrq;
static int hf_gsm_a_rr_eutran_fdd_reporting_threshold_2;
static int hf_gsm_a_rr_eutran_fdd_reporting_offset;
static int hf_gsm_a_rr_eutran_tdd_reporting_threshold_rsrp;
static int hf_gsm_a_rr_eutran_tdd_reporting_threshold_rsrq;
static int hf_gsm_a_rr_eutran_tdd_reporting_threshold_2;
static int hf_gsm_a_rr_eutran_tdd_reporting_offset;
static int hf_gsm_a_rr_eutran_fdd_measurement_report_offset;
static int hf_gsm_a_rr_eutran_tdd_measurement_report_offset;
static int hf_gsm_a_rr_reporting_granularity;
static int hf_gsm_a_rr_eutran_default_measurement_control_eutran;
static int hf_gsm_a_rr_eutran_measurement_control_eutran;
static int hf_gsm_a_rr_qsearch_p_eutran;
static int hf_gsm_a_rr_serving_cell_priority_param_geran_priority;
static int hf_gsm_a_rr_serving_cell_priority_param_thresh_prio_search;
static int hf_gsm_a_rr_serving_cell_priority_param_thresh_gsm_low;
static int hf_gsm_a_rr_serving_cell_priority_param_h_prio;
static int hf_gsm_a_rr_serving_cell_priority_param_t_reselection;
static int hf_gsm_a_rr_eutran_earfcn;
static int hf_gsm_a_rr_eutran_measurement_bandwidth;
static int hf_gsm_a_rr_eutran_priority;
static int hf_gsm_a_rr_thresh_eutran_high;
static int hf_gsm_a_rr_thresh_eutran_low;
static int hf_gsm_a_rr_eutran_qrxlevmin;
static int hf_gsm_a_rr_eutran_pcid_present;
static int hf_gsm_a_rr_eutran_pcid;
static int hf_gsm_a_rr_eutran_pcid_bitmap_group;
static int hf_gsm_a_rr_eutran_pcid_pattern_length;
/* static int hf_gsm_a_rr_eutran_pcid_pattern; */
static int hf_gsm_a_rr_eutran_pcid_pattern_sense;
static int hf_gsm_a_rr_eutran_frequency_index;
static int hf_gsm_a_rr_psc;
static int hf_gsm_a_rr_utran_psc_pattern_length;
static int hf_gsm_a_rr_utran_psc_pattern_sense;
static int hf_gsm_a_rr_utran_csg_fdd_uarfcn;
static int hf_gsm_a_rr_utran_csg_tdd_uarfcn;
static int hf_gsm_a_rr_csg_earfcn;
static int hf_gsm_a_rr_3g_control_param_desc_meas_ctrl_utran;
static int hf_gsm_a_rr_peo_bcch_change_mark;
static int hf_gsm_a_rr_feat_ind_cs_ir;
static int hf_gsm_a_rr_feat_ind_ps_ir;

/* Additions for EC-GSM-IoT rel. 13 */
static int hf_gsm_a_rr_ec_qhfi;
static int hf_gsm_a_rr_ec_dl_cc;
static int hf_gsm_a_rr_ec_ul_cc;
static int hf_gsm_a_rr_tsc_set;
static int hf_gsm_a_rr_ec_tsc;
static int hf_gsm_a_rr_ec_ma_number;

static int hf_gsm_a_rr_ec_enhanced_access_burst;
static int hf_gsm_a_rr_ec_starting_ul_timeslot;
static int hf_gsm_a_rr_ec_starting_dl_timeslot;
static int hf_gsm_a_rr_ec_starting_dl_timeslot_offset;
static int hf_gsm_a_rr_ec_starting_ul_timeslot_offset;
static int hf_gsm_a_rr_ec_overlaid_cdma_code;
static int hf_gsm_a_rr_ec_mcs_exist;
static int hf_gsm_a_rr_ec_start_first_ul_data_block;
static int hf_gsm_a_rr_ec_fua_gap_list;
static int hf_gsm_a_rr_ec_start_fn_next_data_block_exist;
static int hf_gsm_a_rr_ec_start_fn_next_data_block;

static int hf_gsm_a_rr_ec_used_dl_cc;
static int hf_gsm_a_rr_ec_page_extension_exist;
static int hf_gsm_a_rr_ec_page_extension;
static int hf_gsm_a_rr_ec_last_tdma_frame;
static int hf_gsm_a_rr_ec_echoed_random_bits;

static int hf_gsm_a_rr_ec_wait_timer;
static int hf_gsm_a_rr_ec_req_ref_2_present;
static int hf_gsm_a_rr_ec_req_ref_3_present;

static int hf_gsm_a_rr_ec_ptmsi_imsi_select;
static int hf_gsm_a_rr_ec_imsi_digits;
static int hf_gsm_a_rr_ec_imsi;
static int hf_gsm_a_rr_ec_mobile_identity_2_exist;

static int hf_gsm_a_rr_ec_cc1_timeslot_multiplier;
static int hf_gsm_a_rr_ec_alpha_enable;

static int hf_gsm_a_rr_rcc;
static int hf_gsm_a_rr_implicit_reject_cs;
static int hf_gsm_a_rr_implicit_reject_ps;
static int hf_gsm_a_rr_peo_dsc;
static int hf_gsm_a_rr_c1_delta_min;
static int hf_gsm_a_rr_c1_delta_max;

static int hf_gsm_a_rr_cs_tsc_set;
static int hf_gsm_a_rr_ps_sd_tsc_ass;
static int hf_gsm_a_rr_ps_pd_tsc_set;
static int hf_gsm_a_rr_ps_sd_tsc_set;
static int hf_gsm_a_rr_ps_sd_tsc_val;

/* Initialize the subtree pointers */
static int ett_ccch_msg;
static int ett_rach_msg;
static int ett_ec_ccch_msg;
static int ett_ccch_oct_1;
static int ett_sacch_msg;
static int ett_apdu;

static expert_field ei_gsm_a_rr_ie_overrun;
static expert_field ei_gsm_a_rr_ie_underrun;
static expert_field ei_gsm_a_rr_data_not_dissected;
static expert_field ei_gsm_a_rr_unknown_version;
static expert_field ei_gsm_a_rr_extraneous_data;
static expert_field ei_gsm_a_rr_missing_mandatory_element;

static dissector_handle_t rrlp_dissector;


#define NUM_GSM_RR_ELEM array_length(gsm_rr_elem_strings)
int ett_gsm_rr_elem[NUM_GSM_RR_ELEM];

typedef enum
{
    /* RR Rest Octets information elements */
    DE_RR_REST_OCTETS_UTRAN_FDD_DESC,
    DE_RR_REST_OCTETS_UTRAN_TDD_DESC,
    DE_RR_REST_OCTETS_3G_MEAS_PARAM_DESC,
    DE_RR_REST_OCTETS_3G_ADD_MEAS_PARAM_DESC,
    DE_RR_REST_OCTETS_MEAS_PARAM_DESC,
    DE_RR_REST_OCTETS_GPRS_RTD_DESC,
    DE_RR_REST_OCTETS_GPRS_BSIC_DESC,
    DE_RR_REST_OCTETS_GPRS_REPORT_PRIO_DESC,
    DE_RR_REST_OCTETS_GPRS_MEAS_PARAM_DESC,
    DE_RR_REST_OCTETS_NC_MEAS_PARAM,
    DE_RR_REST_OCTETS_SI2Q_EXT_INFO,
    DE_RR_REST_OCTETS_CCN_SUPPORT_DESC,
    DE_RR_REST_OCTETS_3G_NEIGH_CELL_DESC,
    DE_RR_REST_OCTETS_FDD_CELL_INFORMATION_FIELD,
    DE_RR_REST_OCTETS_TDD_CELL_INFORMATION_FIELD,
    DE_RR_REST_OCTETS_GPRS_3G_MEAS_PARAM_DESC,
    DE_RR_REST_OCTETS_3G_ADD_MEAS_PARAM_DESC2,
    DE_RR_REST_OCTETS_PRIORITY_AND_EUTRAN_PARAM_DESC,
    DE_RR_REST_OCTETS_SERVING_CELL_PRIORITY_PARAM_DESC,
    DE_RR_REST_OCTETS_3G_PRIORITY_PARAM_DESC,
    DE_RR_REST_OCTETS_UTRAN_PRIO_PARAM,
    DE_RR_REST_OCTETS_EUTRAN_PARAM_DESC,
    DE_RR_REST_OCTETS_EUTRAN_NEIGHBOUR_CELLS,
    DE_RR_REST_OCTETS_EUTRAN_NOT_ALLOWED_CELLS,
    DE_RR_REST_OCTETS_EUTRAN_PCID_TO_TA_MAPPING,
    DE_RR_REST_OCTETS_3G_CSG_DESC,
    DE_RR_REST_OCTETS_EUTRAN_CSG_DESC,
    DE_RR_REST_OCTETS_OPTIONAL_SEL_PARAM,
    DE_RR_REST_OCTETS_GPRS_INDICATOR,
    DE_RR_REST_OCTETS_SI4_REST_OCTETS_O,
    DE_RR_REST_OCTETS_SI4_REST_OCTETS_S,
    DE_RR_REST_OCTETS_LSA_PARAMETERS,
    DE_RR_REST_OCTETS_LSA_ID_INFO,
    DE_RR_REST_OCTETS_PCH_AND_NCH_INFO,
    DE_RR_REST_OCTETS_VBS_VGCS_OPTIONS,
    DE_RR_REST_OCTETS_GPRS_MOBILE_ALLOC,
    DE_RR_REST_OCTETS_GPRS_CELL_OPTIONS,
    DE_RR_REST_OCTETS_GPRS_CELL_OPTIONS_EXT_INFO,
    DE_RR_REST_OCTETS_GPRS_POWER_CONTROL_PARAMS,
    DE_RR_REST_OCTETS_PBCCH_DESC,
    DE_RR_REST_OCTETS_GSM_DESC,
    DE_RR_REST_OCTETS_RTD_DESC,
    DE_RR_REST_OCTETS_BSIC_DESC,
    DE_RR_REST_OCTETS_REPORT_PRIO_DESC,
    DE_RR_REST_OCTETS_CDMA2000_DESC,
    DE_RR_REST_OCTETS_SERVING_CELL_DATA,
    DE_RR_REST_OCTETS_REPEAT_INV_BSIC_INFO,
    DE_RR_REST_OCTETS_BITMAP_TYPE_REPORTING,
    DE_RR_REST_OCTETS_3G_SUPPLEMENTARY_PARAM_DESC,
    DE_RR_REST_OCTETS_UTRAN_MEASUREMENT_CONTROL_PARAM_DESC,
    DE_RR_REST_OCTETS_EGPRS_PACKET_UPLINK_ASSIGNMENT,
    DE_RR_REST_OCTETS_MULTIPLE_BLOCKS_PACKET_DOWNLINK_ASSIGNMENT,
    DE_RR_REST_OCTETS_TMGI,
    DE_RR_REST_OCTETS_PACKET_TIMING_ADVANCE,
    DE_RR_REST_OCTETS_PACKET_UPLINK_ASSIGNMENT,
    DE_RR_REST_OCTETS_PACKET_DOWNLINK_ASSIGNMENT,
    DE_RR_REST_OCTETS_SECOND_PART_PACKET_ASSIGNMENT,
    DE_RR_REST_OCTETS_REPORTING_QUANTITY,
    DE_RR_REST_OCTETS_EUTRAN_MEASUREMENT_REPORT,
    DE_RR_REST_OCTETS_EUTRAN_DESC,
    DE_RR_REST_OCTETS_EAB_PARAM_DESC,
    DE_RR_REST_OCTETS_NONE
}
rr_rest_octets_elem_idx_t;

#define NUM_GSM_RR_REST_OCTETS_ELEM array_length(gsm_rr_rest_octets_elem_strings)
static int ett_gsm_rr_rest_octets_elem[NUM_GSM_RR_REST_OCTETS_ELEM];

/* True/False flags specifically for gsm_rr_csn_flag */
static const true_false_string tfs_tfi_multi_block_allocation_present = {"TFI Assignment Present", "Multi Block Allocation Present"};
static const true_false_string tfs_fixed_dynamic_allocation = {"Fixed Allocation (not to be used after Rel-4)", "Dynamic Allocation (mandatory after Rel-4)"};
static const true_false_string tfs_mode_b_mode_a = {"Mode B (not to be used after Rel-4)", "Mode A (mandatory after Rel-4)"};
static const true_false_string tfs_downlink_assignment = {"Default 0 bit", "Reserved Value"};
static const true_false_string tfs_non_distribution_distribution = {"(Non-distribution)", "(Distribution)"};
static const true_false_string tfs_normal_single_block = {"Normal", "Single Block"};
static const true_false_string tfs_early_r97_version_later_than_r97_version = {"Early R97 version", "Later than R97 version"};
static const true_false_string tfs_later_than_r97_version_early_r97_version = {"Later than R97 version", "Early R97 version"};
static const true_false_string tfs_earlier_version_current_version = {"Earlier version", "Current version"};
static const true_false_string tfs_downlink_uplink_discriminator_bit = {"Reserved for future use", "EGPRS Packet Uplink Assignment or Multiple blocks Packet Downlink Assignment"};
static const true_false_string tfs_downlink_uplink_assign = {"Multiple blocks Packet Downlink Assignment", "EGPRS Packet Uplink Assignment"};
static const true_false_string tfs_second_part_packet_assignment = {"Second Part Packet Assignment", "Packet Assignment"};
static const true_false_string tfs_packet_downlink_uplink_assignment = {"Packet Downlink Assignment", "Packet Uplink Assignment"};
static const true_false_string tfs_shall_be_shall_not_be_used = {"Shall be used", "Shall not be used"};
static const true_false_string tfs_current_version_earlier_version = {"Current version", "Earlier version"};
static const true_false_string tfs_member_not_member_of_set = {"is a member of the set", "is not a member of the set"};
static const true_false_string tfs_not_present_present = {"Not Present", "Present"};
static const true_false_string tfs_rsrq_rsrp = {"RSRQ", "RSRP"};
static const true_false_string tfs_3_bit_6_bit = {"3 bit", "6 bit"};
static const true_false_string tfs_tdd_fdd = {"TDD", "FDD"};
static const true_false_string tfs_ec_no_rscp = {"Ec/No", "RSCP"};
static const true_false_string tfs_short_lsa_id_lsa_id = {"Short LSA ID", "LSA ID"};
static const true_false_string tfs_present_not_present_in_cell = {"Present In Cell", "Not Present In Cell"};
static const true_false_string tfs_ec_ptmsi_imsi = {"IMSI", "P-TMSI"};

/* this function is used for dissecting the 0/1 presence flags in CSN.1 coded IEs */
static bool gsm_rr_csn_flag(tvbuff_t *tvb, proto_tree *tree, int bit_offset, int hf_bit)
{
    uint8_t bit_mask        = 0x80 >> (bit_offset % 8);
    uint8_t value           = tvb_get_uint8(tvb, bit_offset >> 3);

    proto_tree_add_bits_item(tree, hf_bit, tvb, bit_offset, 1, ENC_NA);
    return ((value & bit_mask) != 0);
}

static const true_false_string tfs_break_indicator = {"Additional parameters \"SI4 Rest Octets_S\" are sent in SYSTEM INFORMATION TYPE 7 and 8",
                                                      "Additional parameters \"SI4 Rest Octets_S\" are not sent in SYSTEM INFORMATION TYPE 7 and 8"};
static const true_false_string tfs_for_gprs_for_rr_connection_establishment = {"For GPRS", "For RR connection establishment"};
static const true_false_string tfs_3g_early_classmark_sending_restriction = {"The sending of UTRAN,CDMA2000 and GERAN IU MODE CLASSMARK CHANGE messages are controlled by the Early Classmark Sending Control parameter",
                                                                             "Neither UTRAN, CDMA2000 nor GERAN IU MODE CLASSMARK CHANGE message shall be sent with the Early classmark sending"};
static const true_false_string tfs_supported_in_serving_cell_not_supported_in_serving_cell = {"Supported in Serving cell", "Not Supported in Serving cell"};

static int de_rr_eutran_not_allowed_cells(tvbuff_t *tvb, proto_tree *tree, int bit_offset);

/* this function is used for dissecting the H/L presence flags in CSN.1 coded IEs"
   If truncation ( 44.018 section 8.9) is allowed, truncation_length is set to the actual bit length of the CSN.1 string,
   otherwise it is set to 0 */
/* coverity[+no_checked_return] */
static bool gsm_rr_csn_HL_flag(tvbuff_t *tvb, proto_tree *tree, unsigned truncation_length, unsigned bit_offset, int hf_bit)
{
    uint8_t bit_mask        = 0x80 >> (bit_offset % 8);
    uint8_t value           = PADDING_BYTE;
    char   bits_str[]      = {".... .... = "};
    uint8_t offset_in_octet = bit_offset % 8;
    proto_item* ti;

    if (truncation_length)
    {
       if (bit_offset < truncation_length)
       {
          /* there should be some real data to fetch */
          value = tvb_get_uint8(tvb, bit_offset >> 3)^PADDING_BYTE;
       }
       else
       {
          /* implicit L bit */
          ti = proto_tree_add_boolean(tree, hf_bit, tvb, truncation_length>>3, 1, false);
          proto_item_prepend_text(ti, "(implicit L bit)");
          return false;
       }
    }
    else
    {
       /* if truncation_length == 0, then don't check for truncation*/
       value = tvb_get_uint8(tvb, bit_offset >> 3)^PADDING_BYTE;
    }

    if (value & bit_mask)
    {
        bits_str[offset_in_octet + (offset_in_octet / 4)] = 'H';
        ti = proto_tree_add_boolean(tree, hf_bit, tvb, bit_offset>>3, 1, true);
        proto_item_prepend_text(ti, "%s", bits_str);
        return true;
    }
    else
    {
        bits_str[offset_in_octet + (offset_in_octet / 4)] = 'L';
        ti = proto_tree_add_boolean(tree, hf_bit, tvb, bit_offset>>3, 1, false);
        proto_item_prepend_text(ti, "%s", bits_str);
        return false;
    }
}

/*
10.5.2 Radio Resource management information elements
 * [3] 10.5.2.1a BA Range
 */
static uint16_t
de_rr_ba_range(tvbuff_t *tvb, proto_tree *tree, packet_info *pinfo _U_, uint32_t offset, unsigned len, char *add_string _U_, int string_len _U_)
{
    uint32_t curr_offset;
    int     bit_offset;
    uint8_t value;

    curr_offset = offset;
    proto_tree_add_item(tree, hf_gsm_a_rr_range_nb, tvb, curr_offset, 1, ENC_BIG_ENDIAN);
    value = tvb_get_uint8(tvb, curr_offset);
    curr_offset += 1;
    bit_offset = curr_offset << 3;
    while (value)
    {
        proto_tree_add_bits_item(tree, hf_gsm_a_rr_range_lower, tvb, bit_offset, 10, ENC_BIG_ENDIAN);
        bit_offset += 10;
        proto_tree_add_bits_item(tree, hf_gsm_a_rr_range_higher, tvb, bit_offset, 10, ENC_BIG_ENDIAN);
        bit_offset += 10;
        value -= 1;
    }

    curr_offset += len - 1;
    return (curr_offset - offset);
}

/*
 * [3] 10.5.2.1b Cell Channel Description
 */

#define ARFCN_MAX 1024 /* total number of ARFCNs defined */

static void display_channel_list(uint8_t *list, tvbuff_t *tvb, proto_tree *tree, uint32_t offset, unsigned len)
{
    int         arfcn;
    proto_item *ti = NULL;

    ti = proto_tree_add_bytes_format(tree, hf_gsm_a_rr_arfcn_list, tvb, offset, len, NULL, "List of ARFCNs =");
    for (arfcn=0; arfcn<ARFCN_MAX; arfcn++) {
        if (list[arfcn])
            proto_item_append_text(ti, " %d", arfcn);
    }

    return;
}

/**
 * Checks that the remaining "rest octets" all contain the default padding value.
 * If not, it can be assumed that there is a protocol extension
 * that we don't handle,
 * or a malformed PDU.
 *
 * bit_offset: bit offset in TVB of first bit to be examined
 * octet_len:  total length of buffer
 * pattern:    padding pattern (usually 0x2b or 0x00)
 */
static void gsm_rr_padding_bits(proto_tree* tree, tvbuff_t* tvb,
                                uint16_t bit_offset, uint8_t octet_len,
                                const uint8_t pattern)
{
    unsigned i;
    bool non_padding_found = false;
    uint8_t  octet_offset      = bit_offset >> 3;

    if ((octet_len << 3) > bit_offset)
    {
        /* there is spare room, check the first padding octet */
        uint8_t bit_mask = 0xFF >> (bit_offset & 0x07);
        if ((tvb_get_uint8(tvb, octet_offset) & bit_mask) != (pattern & bit_mask))
        {
               non_padding_found = true;
        }
        else
        {
           for (i=octet_offset+1; (i<octet_len) && !non_padding_found; i++)
           {
               if (tvb_get_uint8(tvb, i) != pattern)
                   non_padding_found = true;
           }
        }

        if (non_padding_found)
        {
            /* there is something here we don't understand */
            proto_tree_add_bytes_format_value(tree, hf_gsm_a_rr_padding, tvb, octet_offset, -1, NULL, "Unknown extension detected or malformed PDU (Not decoded)");
        }
        else
        {
            proto_tree_add_bytes_format_value(tree, hf_gsm_a_rr_padding, tvb, octet_offset, -1, NULL, "default padding");
        }
    }
    else
    {
       proto_tree_add_bytes_format(tree, hf_gsm_a_rr_padding, tvb, 0, 0, NULL, "No space for padding bits");
    }
}

static int greatest_power_of_2_lesser_or_equal_to(int idx)
{
    int j = 1;
    do {
        j <<= 1;
    } while (j <= idx);
    j >>= 1;
    return j;
}

int f_k(int k, int *w, int range)
{
    int idx, n, j;

    idx    = k;
    range -= 1;
    range  = range/greatest_power_of_2_lesser_or_equal_to(idx);
    n      = w[idx]-1;

    while (idx>1) {
        j = greatest_power_of_2_lesser_or_equal_to(idx);
        range = 2*range+1;
        if ((2*idx) < 3*j){ /* left child */
            idx -= j/2;
            n = (n+w[idx]-1+((range-1)/2)+1)%range;
        }
        else { /* right child */
            idx -= j;
            n = (n+w[idx]-1+1)%range;
        }
    }

    return (n+1)%1024;
}

static void dissect_channel_list_n_range(tvbuff_t *tvb, proto_tree *tree, packet_info *pinfo _U_, uint32_t offset, unsigned len, int range)
{
    int         curr_offset = offset, bit_offset, f0, w[64], wsize, i;
    int         octet, nwi  = 1, jwi=0, imax, iused, arfcn;
    uint8_t     list[1024];
    uint64_t    arfcn_orig;
    proto_tree *subtree;

    memset((void*)list,0,sizeof(list));

    subtree = proto_tree_add_subtree_format(tree,tvb, curr_offset, len,
                                            ett_gsm_rr_elem[DE_RR_NEIGH_CELL_DESC], NULL, "Range %d format", range);

    octet = tvb_get_uint8(tvb, curr_offset);
    if (range == 1024) {
        f0 = (octet>>2)&1;
        if (f0)
            list[0] = 1;
        arfcn_orig = 0;
        wsize = 10;
        imax = 16;
        bit_offset = curr_offset*8 + 6;
    }
    else {
        bit_offset = curr_offset*8 + 7;
        proto_tree_add_bits_ret_val(subtree, hf_n_range_orig_arfcn, tvb, bit_offset, 10, &arfcn_orig, ENC_BIG_ENDIAN);
        bit_offset+=10;

        /* N.B. cannot go out of bounds as read only 10 bits */
        list[arfcn_orig] = 1;

        switch (range) {
        case 512:
            wsize=9;
            imax = 17;
            break;
        case 256:
            wsize=8;
            imax = 21;
            break;
        case 128:
            wsize=7;
            imax = 28;
            break;
        default:
            DISSECTOR_ASSERT_NOT_REACHED();
        }
    }
    iused = imax;   /* in case the list is actually full */

    /* extract the variable size w[] elements */
    for (i=1; i<=imax; i++) {
        w[i] = tvb_get_bits32(tvb, bit_offset, wsize, ENC_BIG_ENDIAN);
        proto_tree_add_bytes_format(subtree, hf_gsm_a_rr_w_elements, tvb, bit_offset>>3, ((bit_offset+wsize-1)>>3) - (bit_offset>>3) + 1 , NULL, "%s W(%d): %d",
                            decode_bits_in_field(pinfo->pool, bit_offset, wsize, w[i], ENC_BIG_ENDIAN),
                            i,
                            w[i]);
        bit_offset += wsize;
        curr_offset = bit_offset>>3;

        if ((iused == imax) && (w[i] == 0) ) {
            iused = i - 1;
        }
        if ((curr_offset-offset)>len) {
            iused = i - 1;
            break;
        }
        if (++jwi == nwi) {       /* check if the number of wi at this wsize has been extracted */
            jwi = 0;            /* reset the count of wi at this size */
            nwi <<= 1;          /* get twice as many of the next size */
            wsize--;            /* make the next size 1 bit smaller */
        }
    }

    for (i=1; i<=iused; i++) {
        arfcn = (f_k(i, w, range) + arfcn_orig)%1024;
        list[arfcn] = 1;
    }

    display_channel_list(list, tvb, tree, offset, curr_offset-offset);

    return;
}

static uint16_t
dissect_arfcn_list_core(tvbuff_t *tvb, proto_tree *tree, packet_info *pinfo, uint32_t offset, unsigned len, char *add_string _U_, int string_len _U_, uint8_t format)
{
    uint32_t    curr_offset, byte;
    uint8_t     oct,bit;
    uint16_t    arfcn;
    proto_item *item;

    curr_offset = offset;

    if ((format & 0xc0) == 0x00)
    {
        /* bit map 0 */
        item = proto_tree_add_bytes_format(tree, hf_gsm_a_rr_arfcn_list, tvb, curr_offset, len, NULL, "List of ARFCNs =");
        bit = 4;
        arfcn = 125;
        for (byte = 0; byte <= len-1; byte++)
        {
            oct = tvb_get_uint8(tvb, curr_offset);
            while (bit-- != 0)
            {
                arfcn--;
                if (((oct >> bit) & 1) == 1)
                {
                    proto_item_append_text(item," %d",arfcn);
                }
            }
            bit = 8;
            curr_offset++;
        }
    }
    else if ((format & 0xc8) == 0x80)
    {
        /* 1024 range */
        dissect_channel_list_n_range(tvb, tree, pinfo, curr_offset, len, 1024);
        curr_offset = curr_offset + len;
    }
    else if ((format & 0xce) == 0x88)
    {
        /* 512 range */
        dissect_channel_list_n_range(tvb, tree, pinfo, curr_offset, len, 512);
        curr_offset = curr_offset + len;
    }
    else if ((format & 0xce) == 0x8a)
    {
        /* 256 range */
        dissect_channel_list_n_range(tvb, tree, pinfo, curr_offset, len, 256);
        curr_offset = curr_offset + len;
    }
    else if ((format & 0xce) == 0x8c)
    {
        /* 128 range */
        dissect_channel_list_n_range(tvb, tree, pinfo, curr_offset, len, 128);
        curr_offset = curr_offset + len;
    }
    else if ((format & 0xce) == 0x8e)
    {
        /* variable bit map */
        arfcn = ((format & 0x01) << 9) | (tvb_get_uint8(tvb, curr_offset+1) << 1) | ((tvb_get_uint8(tvb, curr_offset + 2) & 0x80) >> 7);
        item = proto_tree_add_bytes_format(tree, hf_gsm_a_rr_arfcn_list, tvb, curr_offset, len, NULL, "List of ARFCNs = %d",arfcn);
        curr_offset = curr_offset + 2;
        bit = 7;
        for (byte = 0; byte <= len-3; byte++)
        {
            oct = tvb_get_uint8(tvb, curr_offset);
            while (bit-- != 0)
            {
                arfcn++;
                if (((oct >> bit) & 1) == 1)
                {
                    proto_item_append_text(item," %d",arfcn % 1024);
                }
            }
            bit = 8;
            curr_offset++;
        }
    }

    return curr_offset - offset;
}

/*
 * Format ID is in bits:
 * 128 127 124 123 122 (hf_gsm_a_rr_format_id)
 */
static uint16_t
dissect_arfcn_list(tvbuff_t *tvb, proto_tree *tree, packet_info *pinfo, uint32_t offset, unsigned len, char *add_string _U_, int string_len _U_)
{
    uint32_t curr_offset;
    uint8_t oct;

    curr_offset = offset;

    oct = tvb_get_uint8(tvb, curr_offset);

    /* FORMAT-ID, Format Identifier (part of octet 3)*/
    proto_tree_add_item(tree, hf_gsm_a_rr_format_id, tvb, curr_offset, 1, ENC_BIG_ENDIAN);

    curr_offset += dissect_arfcn_list_core(tvb, tree, pinfo, offset, len, add_string, string_len, oct);

    return curr_offset - offset;
}

/*
 * Format ID is in bits:
 * 128 124 123 122 (hf_gsm_a_rr_format_id2)
 */
static uint16_t
dissect_arfcn_list2(tvbuff_t *tvb, proto_tree *tree, packet_info *pinfo, uint32_t offset, unsigned len, char *add_string _U_, int string_len _U_)
{
    uint32_t curr_offset;
    uint8_t oct;

    curr_offset = offset;

    /* Turn bit 127 off, in order to reuse the ARFCN dissection code */
    oct = tvb_get_uint8(tvb, curr_offset) & 0xbf;

    /* FORMAT-ID, Format Identifier (part of octet 3)*/
    proto_tree_add_item(tree, hf_gsm_a_rr_format_id2, tvb, curr_offset, 1, ENC_BIG_ENDIAN);

    curr_offset += dissect_arfcn_list_core(tvb, tree, pinfo, offset, len, add_string, string_len, oct);

    return curr_offset - offset;
}

static uint16_t
de_rr_cell_ch_dsc(tvbuff_t *tvb, proto_tree *tree, packet_info *pinfo, uint32_t offset, unsigned len _U_, char *add_string _U_, int string_len _U_)
{
    return dissect_arfcn_list(tvb, tree, pinfo, offset, 16, add_string, string_len);
}
/*
 * [3] 10.5.2.1c BA List Pref
 */
static uint16_t
de_rr_ba_list_pref(tvbuff_t *tvb, proto_tree *tree, packet_info *pinfo, uint32_t offset, unsigned len, char *add_string _U_, int string_len _U_)
{
    unsigned bit_offset;

    bit_offset = offset << 3;
    while (gsm_rr_csn_flag(tvb, tree, bit_offset++, hf_gsm_a_rr_repeat_range_limit))
    {
        proto_tree_add_bits_item(tree, hf_gsm_a_rr_range_lower, tvb, bit_offset, 10, ENC_BIG_ENDIAN);
        bit_offset += 10;
        proto_tree_add_bits_item(tree, hf_gsm_a_rr_range_higher, tvb, bit_offset, 10, ENC_BIG_ENDIAN);
        bit_offset += 10;
    }
    while (gsm_rr_csn_flag(tvb, tree, bit_offset++, hf_gsm_a_rr_repeat_ba_frequency))
    {
        proto_tree_add_bits_item(tree, hf_gsm_a_rr_ba_freq, tvb, bit_offset, 10, ENC_BIG_ENDIAN);
        bit_offset += 10;
    }

    if (((bit_offset + 7) >> 3) > (offset + len))
    {
       expert_add_info(pinfo, proto_tree_get_parent(tree), &ei_gsm_a_rr_ie_overrun);
    }
    else if ((bit_offset >> 3) < (offset + len))
    {
       expert_add_info(pinfo, proto_tree_get_parent(tree), &ei_gsm_a_rr_ie_underrun);
    }
    return len;
}

/*
 * [3] 10.5.2.1d UTRAN Frequency List
 */
static uint16_t
de_rr_utran_freq_list(tvbuff_t *tvb, proto_tree *tree, packet_info *pinfo, uint32_t offset, unsigned len, char *add_string _U_, int string_len _U_)
{
    unsigned bit_offset;

    /* < UTRAN Freq List >::=
     * < LENGTH OF UTRAN FREQ LIST : bit (8) > -- length following in octets
     * { 1 < FDD_ARFCN > : bit (14) } ** 0 -- FDD frequencies
     * { 1 < TDD_ARFCN > : bit (14) } ** 0 -- TDD frequencies
     * <spare bit>**;
     * Spare bits in the end of the field are used to fill the last octet.
     */
    bit_offset = offset << 3;
    while (gsm_rr_csn_flag(tvb, tree, bit_offset++, hf_gsm_a_rr_fdd_repeat_freq))
    {
        proto_tree_add_bits_item(tree, hf_gsm_a_rr_fdd_uarfcn, tvb, bit_offset, 14, ENC_BIG_ENDIAN);
        bit_offset += 14;
    }
    while (gsm_rr_csn_flag(tvb, tree, bit_offset++, hf_gsm_a_rr_tdd_repeat_freq))
    {
        proto_tree_add_bits_item(tree, hf_gsm_a_rr_tdd_uarfcn, tvb, bit_offset, 14, ENC_BIG_ENDIAN);
        bit_offset += 14;
    }

    if (((bit_offset + 7) >> 3) > (offset + len))
    {
       expert_add_info(pinfo, proto_tree_get_parent(tree), &ei_gsm_a_rr_ie_overrun);
    }
    else if ((bit_offset >> 3) < (offset + len))
    {
       expert_add_info(pinfo, proto_tree_get_parent(tree), &ei_gsm_a_rr_ie_underrun);
    }
    return (len);
}

/*
 * [3] 10.5.2.1e Cell selection indicator after release of all TCH and SDCCH
 */
static const uint8_t
convert_n_to_p[32] = {   0, 10, 19, 28, 36, 44, 52, 60, 67, 74, 81, 88, 95, 102, 109, 116,
                       122,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,   0,   0,   0};

static const uint8_t
convert_n_to_q[32] = {   0,   9,  17,  25,  32, 39, 46, 53, 59, 65, 71, 77, 83, 89, 95, 101,
                       106, 111, 116, 121, 126,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,   0};
static const true_false_string tfs_1900_1800 = { "1900", "1800" };

static uint16_t
de_rr_cell_select_indic(tvbuff_t *tvb, proto_tree *tree, packet_info *pinfo _U_, uint32_t offset, unsigned len, char *add_string _U_, int string_len _U_)
{
    proto_tree *subtree, *subtree2;
    proto_item *item;
    uint32_t    curr_offset;
    int         bit_offset, bit_offset_sav, idx, xdd_cell_info, wsize, nwi, jwi, w[64], i, iused, xdd_indic0;
    uint8_t     value;

    curr_offset = offset;
    bit_offset  = curr_offset << 3;
    value = tvb_get_bits8(tvb,bit_offset,3);
    bit_offset += 3;
    switch (value)
    {
    case 0: /* GSM Description */
        bit_offset_sav = bit_offset;
        subtree = proto_tree_add_subtree(tree, tvb, bit_offset>>3, -1, ett_gsm_rr_rest_octets_elem[DE_RR_REST_OCTETS_GSM_DESC], &item,
                                   gsm_rr_rest_octets_elem_strings[DE_RR_REST_OCTETS_GSM_DESC]);
        while (gsm_rr_csn_flag(tvb, subtree, bit_offset++, hf_gsm_a_rr_repeat_gsm_desc))
        {
            proto_tree_add_bits_item(subtree, hf_gsm_a_rr_band_indicator, tvb, bit_offset++, 1, ENC_NA);
            proto_tree_add_bits_item(subtree, hf_gsm_a_rr_arfcn, tvb, bit_offset, 10, ENC_BIG_ENDIAN);
            bit_offset += 10;
            proto_tree_add_bits_item(subtree, hf_gsm_a_rr_bsic, tvb, bit_offset, 6, ENC_BIG_ENDIAN);
            bit_offset += 6;
        }
        proto_item_set_len(item,((bit_offset>>3) - (bit_offset_sav>>3) + 1));
        break;
    case 1: /* UTRAN FDD Description */
        bit_offset_sav = bit_offset;
        subtree = proto_tree_add_subtree(tree, tvb, bit_offset>>3, -1, ett_gsm_rr_rest_octets_elem[DE_RR_REST_OCTETS_UTRAN_FDD_DESC], &item,
                                   gsm_rr_rest_octets_elem_strings[DE_RR_REST_OCTETS_UTRAN_FDD_DESC]);
        while (gsm_rr_csn_flag(tvb, subtree, bit_offset++, hf_gsm_a_rr_repeat_utran_fdd_desc))
        {
            if (gsm_rr_csn_flag(tvb, subtree, bit_offset++, hf_gsm_a_rr_bandwidth_fdd_present))
            {
                proto_tree_add_bits_item(subtree, hf_gsm_a_rr_bandwidth_fdd, tvb, bit_offset, 3, ENC_BIG_ENDIAN);
                bit_offset += 3;
            }
            proto_tree_add_bits_item(subtree, hf_gsm_a_rr_fdd_uarfcn, tvb, bit_offset, 14, ENC_BIG_ENDIAN);
            bit_offset += 14;
            if (gsm_rr_csn_flag(tvb, subtree, bit_offset++, hf_gsm_a_rr_fdd_cell_info_present))
            {
                xdd_indic0 = gsm_rr_csn_flag(tvb, subtree, bit_offset++, hf_gsm_a_rr_fdd_indic0);
                idx = tvb_get_bits8(tvb,bit_offset,5);
                proto_tree_add_uint(subtree, hf_gsm_a_rr_nr_of_fdd_cells, tvb, bit_offset>>3, 1, idx);
                bit_offset += 5;
                idx = convert_n_to_p[idx];
                subtree2 = proto_tree_add_subtree(subtree,tvb, bit_offset>>3, (idx>>3)+1,
                                            ett_gsm_rr_rest_octets_elem[DE_RR_REST_OCTETS_FDD_CELL_INFORMATION_FIELD], NULL,
                                            gsm_rr_rest_octets_elem_strings[DE_RR_REST_OCTETS_UTRAN_FDD_DESC]);
                proto_tree_add_bytes_format(subtree2, hf_gsm_a_rr_field_bit_long, tvb, bit_offset>>3, (idx>>3)+1, NULL, "Field is %d bits long", idx);
                if (xdd_indic0)
                {
                    proto_tree_add_uint(subtree2, hf_gsm_a_rr_scrambling_code, tvb, bit_offset>>3, 0, 0);
                    proto_tree_add_uint(subtree2, hf_gsm_a_rr_diversity, tvb, bit_offset>>3, 0, 0);
                }
                if (idx)
                {
                    wsize = 10;
                    nwi = 1;
                    jwi = 0;
                    i = 1;

                    while (idx > 0)
                    {
                        w[i] = tvb_get_bits32(tvb, bit_offset, wsize, ENC_BIG_ENDIAN);
                        bit_offset += wsize;
                        idx -= wsize;
                        if (w[i] == 0)
                        {
                            idx = 0;
                            break;
                        }
                        if (++jwi == nwi)
                        {
                            jwi = 0;
                            nwi <<= 1;
                            wsize--;
                        }
                        i++;
                    }
                    if (idx < 0)
                    {
                        bit_offset += idx;
                    }
                    iused = i-1;

                    for (i=1; i <= iused; i++)
                    {
                        xdd_cell_info = f_k(i, w, 1024);
                        proto_tree_add_uint(subtree2, hf_gsm_a_rr_scrambling_code, tvb, bit_offset>>3, 0, xdd_cell_info & 0x01FF);
                        proto_tree_add_uint(subtree2, hf_gsm_a_rr_diversity, tvb, bit_offset>>3, 0, (xdd_cell_info >> 9) & 0x01);
                    }
                }
            }
        }
        proto_item_set_len(item,((bit_offset>>3) - (bit_offset_sav>>3) + 1));
        break;
    case 2: /* UTRAN TDD Description */
        bit_offset_sav = bit_offset;
        subtree = proto_tree_add_subtree(tree, tvb, bit_offset>>3, -1, ett_gsm_rr_rest_octets_elem[DE_RR_REST_OCTETS_UTRAN_TDD_DESC], &item,
                        gsm_rr_rest_octets_elem_strings[DE_RR_REST_OCTETS_UTRAN_TDD_DESC]);

        while (gsm_rr_csn_flag(tvb, subtree, bit_offset++, hf_gsm_a_rr_repeat_utran_tdd_desc))
        {
            if (gsm_rr_csn_flag(tvb, subtree, bit_offset++, hf_gsm_a_rr_bandwidth_tdd_present))
            {
                proto_tree_add_bits_item(subtree, hf_gsm_a_rr_bandwidth_tdd, tvb, bit_offset, 3, ENC_BIG_ENDIAN);
                bit_offset += 3;
            }
            proto_tree_add_bits_item(subtree, hf_gsm_a_rr_tdd_uarfcn, tvb, bit_offset, 14, ENC_BIG_ENDIAN);
            if (gsm_rr_csn_flag(tvb, subtree, bit_offset++, hf_gsm_a_rr_tdd_cell_info_present))
            {
                xdd_indic0 = gsm_rr_csn_flag(tvb, subtree, bit_offset++, hf_gsm_a_rr_tdd_indic0);
                idx = tvb_get_bits8(tvb,bit_offset,5);
                proto_tree_add_uint(subtree, hf_gsm_a_rr_nr_of_tdd_cells, tvb, bit_offset>>3, 1, idx);
                bit_offset += 5;
                idx = convert_n_to_q[idx];
                subtree2 = proto_tree_add_subtree(subtree,tvb, bit_offset>>3, (idx>>3)+1,
                                            ett_gsm_rr_rest_octets_elem[DE_RR_REST_OCTETS_TDD_CELL_INFORMATION_FIELD], NULL,
                                            gsm_rr_rest_octets_elem_strings[DE_RR_REST_OCTETS_UTRAN_TDD_DESC]);
                proto_tree_add_bytes_format(subtree2, hf_gsm_a_rr_field_bit_long, tvb, bit_offset>>3, (idx>>3)+1, NULL, "Field is %d bits long", idx);
                if (xdd_indic0)
                {
                    proto_tree_add_uint(subtree2, hf_gsm_a_rr_cell_parameter, tvb, bit_offset>>3, 0, 0);
                    proto_tree_add_uint(subtree2, hf_gsm_a_rr_sync_case_tstd, tvb, bit_offset>>3, 0, 0);
                    proto_tree_add_uint(subtree2, hf_gsm_a_rr_diversity_tdd, tvb, bit_offset>>3, 0, 0);
                }
                if (idx)
                {
                    wsize = 9;
                    nwi = 1;
                    jwi = 0;
                    i = 1;

                    while (idx > 0)
                    {
                        w[i] = tvb_get_bits32(tvb, bit_offset, wsize, ENC_BIG_ENDIAN);
                        bit_offset += wsize;
                        idx -= wsize;
                        if (w[i]  ==  0)
                        {
                            idx = 0;
                            break;
                        }
                        if (++jwi == nwi)
                        {
                            jwi = 0;
                            nwi <<= 1;
                            wsize--;
                        }
                        i++;
                    }
                    if (idx < 0)
                    {
                        bit_offset += idx;
                    }
                    iused = i-1;

                    for (i=1; i <= iused; i++)
                    {
                        xdd_cell_info = f_k(i, w, 512);
                        proto_tree_add_uint(subtree2, hf_gsm_a_rr_cell_parameter, tvb, bit_offset>>3, 0, xdd_cell_info & 0x07F);
                        proto_tree_add_uint(subtree2, hf_gsm_a_rr_sync_case_tstd, tvb, bit_offset>>3, 0, (xdd_cell_info >> 7) & 0x01);
                        proto_tree_add_uint(subtree2, hf_gsm_a_rr_diversity_tdd, tvb, bit_offset>>3, 0, (xdd_cell_info >> 8) & 0x01);
                    }
                }
            }
        }
        proto_item_set_len(item,((bit_offset>>3) - (bit_offset_sav>>3) + 1));
        break;
      case 3: /* E-UTRAN Description */

        bit_offset_sav = bit_offset;
        subtree = proto_tree_add_subtree(tree, tvb, bit_offset>>3, -1, ett_gsm_rr_rest_octets_elem[DE_RR_REST_OCTETS_EUTRAN_DESC], &item,
                                         gsm_rr_rest_octets_elem_strings[DE_RR_REST_OCTETS_EUTRAN_DESC]);

        while (gsm_rr_csn_flag(tvb, subtree, bit_offset++, hf_gsm_a_rr_repeat_eutran_desc))
        {
            /* EARFCN */
            proto_tree_add_bits_item(subtree, hf_gsm_a_rr_eutran_earfcn, tvb, bit_offset, 16, ENC_BIG_ENDIAN);
            bit_offset += 16;

            /* Measurement Bandwidth */
            if (gsm_rr_csn_flag(tvb, subtree, bit_offset++, hf_gsm_a_rr_eutran_measurement_bandwidth_present))
            {
                proto_tree_add_bits_item(subtree, hf_gsm_a_rr_eutran_measurement_bandwidth, tvb, bit_offset, 3, ENC_BIG_ENDIAN);
                bit_offset += 3;
            }

            /* Repeated E-UTRAN Not Allowed Cells */
            while (gsm_rr_csn_flag(tvb, subtree, bit_offset++, hf_gsm_a_rr_repeated_eutran_not_allowed_cells))
            {
                bit_offset += de_rr_eutran_not_allowed_cells(tvb, subtree, bit_offset);
            }

            /* TARGET PCID */
            if (gsm_rr_csn_flag(tvb, subtree, bit_offset++, hf_gsm_a_rr_eutran_pcid_present))
            {
                proto_tree_add_bits_item(subtree, hf_gsm_a_rr_eutran_pcid, tvb, bit_offset, 9, ENC_BIG_ENDIAN);
                bit_offset += 9;
            }
        }
        proto_item_set_len(item,((bit_offset>>3) - (bit_offset_sav>>3) + 1));
        break;

    default:
        break;
    }

    curr_offset += len;
    return (curr_offset - offset);
}

/*
 * [3] 10.5.2.2 Cell Description
 */
uint16_t
de_rr_cell_dsc(tvbuff_t *tvb, proto_tree *subtree, packet_info *pinfo _U_, uint32_t offset, unsigned len _U_, char *add_string _U_, int string_len _U_)
{
    uint32_t curr_offset;
    uint16_t bcch_arfcn;

    curr_offset = offset;

    proto_tree_add_item(subtree, hf_gsm_a_rr_ncc, tvb, curr_offset, 1, ENC_BIG_ENDIAN);
    proto_tree_add_item(subtree, hf_gsm_a_rr_bcc, tvb, curr_offset, 1, ENC_BIG_ENDIAN);
    bcch_arfcn = (tvb_get_uint8(tvb,curr_offset) & 0xc0) << 2;
    bcch_arfcn = bcch_arfcn | tvb_get_uint8(tvb,curr_offset+1);
    proto_tree_add_uint(subtree, hf_gsm_a_rr_bcch_arfcn , tvb, curr_offset, 2, bcch_arfcn );

    curr_offset = curr_offset + 2;

    return curr_offset - offset;
}

/*
 * [3] 10.5.2.3 Cell Options (BCCH)
 */
static const value_string gsm_a_rr_dtx_bcch_vals[] = {
    { 0x00, "The MSs may use uplink discontinuous transmission" },
    { 0x01, "The MSs shall use uplink discontinuous transmission" },
    { 0x02, "The MSs shall not use uplink discontinuous transmission" },
    { 0x03, "Reserved" },
    {    0, NULL } };

static const value_string gsm_a_rr_radio_link_timeout_vals[] = {
    { 0x00, "4" },
    { 0x01, "8" },
    { 0x02, "12" },
    { 0x03, "16" },
    { 0x04, "20" },
    { 0x05, "24" },
    { 0x06, "28" },
    { 0x07, "32" },
    { 0x08, "36" },
    { 0x09, "40" },
    { 0x0A, "44" },
    { 0x0B, "48" },
    { 0x0C, "52" },
    { 0x0D, "56" },
    { 0x0E, "60" },
    { 0x0F, "64" },
    {    0, NULL } };

static uint16_t
de_rr_cell_opt_bcch(tvbuff_t *tvb, proto_tree *subtree, packet_info *pinfo _U_, uint32_t offset, unsigned len _U_, char *add_string _U_, int string_len _U_)
{
    uint32_t curr_offset;

    curr_offset = offset;

    proto_tree_add_bits_item(subtree, hf_gsm_a_rr_pwrc, tvb, (curr_offset<<3)+1, 1, ENC_BIG_ENDIAN);
    proto_tree_add_item(subtree, hf_gsm_a_rr_dtx_bcch, tvb, curr_offset, 1, ENC_BIG_ENDIAN);
    proto_tree_add_item(subtree, hf_gsm_a_rr_radio_link_timeout, tvb, curr_offset, 1, ENC_BIG_ENDIAN);

    curr_offset = curr_offset + 1;

    return curr_offset - offset;
}

/*
 * [3] 10.5.2.3a Cell Options (SACCH)
 */
static const value_string gsm_a_rr_dtx_sacch_vals[] = {
    { 0x00, "The MS may use uplink discontinuous transmission on a TCH-F. The MS shall not use uplink discontinuous transmission on TCH-H" },
    { 0x01, "The MS shall use uplink discontinuous transmission on a TCH-F. The MS shall not use uplink discontinuous transmission on TCH-H" },
    { 0x02, "The MS shall not use uplink discontinuous transmission on a TCH-F. The MS shall not use uplink discontinuous transmission on TCH-H" },
    { 0x03, "The MS shall use uplink discontinuous transmission on a TCH-F. The MS may use uplink discontinuous transmission on TCH-H" },
    { 0x04, "The MS may use uplink discontinuous transmission on a TCH-F. The MS may use uplink discontinuous transmission on TCH-H" },
    { 0x05, "The MS shall use uplink discontinuous transmission on a TCH-F. The MS shall use uplink discontinuous transmission on TCH-H" },
    { 0x06, "The MS shall not use uplink discontinuous transmission on a TCH-F. The MS shall use uplink discontinuous transmission on TCH-H" },
    { 0x07, "The MS may use uplink discontinuous transmission on a TCH-F. The MS shall use uplink discontinuous transmission on TCH-H" },
    {    0, NULL } };

static const crumb_spec_t gsm_a_rr_dtx_sacch_crumbs[] = {
    { 0, 1}, /* B8 */
    { 2, 2}, /* B6 - B5 */
    { 0, 0}
};

static uint16_t
de_rr_cell_opt_sacch(tvbuff_t *tvb, proto_tree *subtree, packet_info *pinfo _U_, uint32_t offset, unsigned len _U_, char *add_string _U_, int string_len _U_)
{
    uint32_t curr_offset;

    curr_offset = offset;


    proto_tree_add_bits_item(subtree, hf_gsm_a_rr_pwrc, tvb, (curr_offset<<3)+1, 1, ENC_BIG_ENDIAN);
    /* DTX is a split field in bits 8, 6 and 5 */
    proto_tree_add_split_bits_item_ret_val(subtree, hf_gsm_a_rr_dtx_sacch, tvb, (curr_offset<<3), gsm_a_rr_dtx_sacch_crumbs, NULL);
    proto_tree_add_item(subtree, hf_gsm_a_rr_radio_link_timeout, tvb, curr_offset, 1, ENC_BIG_ENDIAN);

    curr_offset = curr_offset + 1;

    return curr_offset - offset;
}

/*
 * [3] 10.5.2.4 Cell Selection Parameters
 */
static uint16_t
de_rr_cell_sel_param(tvbuff_t *tvb, proto_tree *subtree, packet_info *pinfo _U_, uint32_t offset, unsigned len _U_, char *add_string _U_, int string_len _U_)
{
    uint32_t curr_offset;

    curr_offset = offset;

    proto_tree_add_item(subtree, hf_gsm_a_rr_cell_reselect_hyst, tvb, curr_offset, 1, ENC_BIG_ENDIAN);
    proto_tree_add_item(subtree, hf_gsm_a_rr_ms_txpwr_max_cch, tvb, curr_offset, 1, ENC_BIG_ENDIAN);

    curr_offset = curr_offset + 1;

    proto_tree_add_item(subtree, hf_gsm_a_rr_acs, tvb, curr_offset, 1, ENC_BIG_ENDIAN);
    proto_tree_add_item(subtree, hf_gsm_a_rr_neci, tvb, curr_offset, 1, ENC_BIG_ENDIAN);
    proto_tree_add_item(subtree, hf_gsm_a_rr_rxlev_access_min, tvb, curr_offset, 1, ENC_BIG_ENDIAN);

    curr_offset = curr_offset + 1;

    return curr_offset - offset;
}

/*
 * [3] 10.5.2.4a MAC Mode and Channel Coding Requested
 * [3] 10.5.2.5 Channel Description
 */
uint16_t
de_rr_ch_dsc(tvbuff_t *tvb, proto_tree *subtree, packet_info *pinfo _U_, uint32_t offset, unsigned len _U_, char *add_string _U_, int string_len _U_)
{
    uint32_t     curr_offset;
    uint8_t      oct8,subchannel;
    uint16_t     arfcn, hsn, maio;
    int hf_subchannel;

    curr_offset = offset;

    /* Octet 2 */
    oct8 = tvb_get_uint8(tvb, curr_offset);

    if ((oct8 & 0xf8) == 0x08)
    {
        proto_tree_add_item(subtree, hf_gsm_a_rr_tchf_acchs, tvb, curr_offset, 1, ENC_NA);
    }
    else
    {
        if ((oct8 & 0xf0) == 0x10)
        {
            hf_subchannel = hf_gsm_a_rr_tch_acch;
            subchannel = ((oct8 & 0x08)>>3);
        }
        else if ((oct8 & 0xe0) == 0x20)
        {
            hf_subchannel = hf_gsm_a_rr_sdcch4_sdcchc4_cbch;
            subchannel = ((oct8 & 0x18)>>3);
        }
        else if ((oct8 & 0xc0) == 0x40)
        {
            hf_subchannel = hf_gsm_a_rr_sdcch8_sdcchc8_cbch;
            subchannel = ((oct8 & 0x38)>>3);
        } else {
            hf_subchannel = hf_gsm_a_rr_unknown_channel_info;
            subchannel = oct8;
        }

        proto_tree_add_item(subtree, hf_subchannel, tvb, curr_offset, 1, ENC_NA);
        proto_tree_add_uint(subtree, hf_gsm_a_rr_subchannel, tvb, curr_offset, 1, subchannel);
    }

    proto_tree_add_item(subtree, hf_gsm_a_rr_timeslot, tvb, curr_offset, 1, ENC_BIG_ENDIAN);

    curr_offset +=1;

    /* Octet 3 */
    oct8 = tvb_get_uint8(tvb, curr_offset);
    proto_tree_add_item(subtree, hf_gsm_a_rr_training_sequence, tvb, curr_offset, 1, ENC_BIG_ENDIAN);

    proto_tree_add_item(subtree, hf_gsm_a_rr_hopping_channel, tvb, curr_offset, 1, ENC_NA);
    if ((oct8 & 0x10) == 0x10)
    {
        /* Hopping sequence */
        maio = ((oct8 & 0x0f)<<2) | ((tvb_get_uint8(tvb,curr_offset+1) & 0xc0) >> 6);
        hsn = (tvb_get_uint8(tvb,curr_offset+1) & 0x3f);

        proto_tree_add_uint(subtree, hf_gsm_a_rr_hopping_channel_maio, tvb, curr_offset, 2, maio);
        proto_tree_add_uint(subtree, hf_gsm_a_rr_hsn, tvb, curr_offset, 2, hsn);
    }
    else
    {
        /* single ARFCN */
        arfcn = ((oct8 & 0x03) << 8) | tvb_get_uint8(tvb,curr_offset+1);

        proto_tree_add_bits_item(subtree, hf_gsm_a_rr_spare, tvb, (curr_offset<<3)+4, 2, ENC_NA);
        proto_tree_add_uint(subtree, hf_gsm_a_rr_single_channel_arfcn, tvb, curr_offset, 2, arfcn);
    }

    curr_offset = curr_offset + 2;

    return curr_offset - offset;
}
/*
 * [3] 10.5.2.5a Channel Description 2
 */
static uint16_t
de_rr_ch_dsc2(tvbuff_t *tvb, proto_tree *subtree, packet_info *pinfo _U_, uint32_t offset, unsigned len _U_, char *add_string _U_, int string_len _U_)
{
    uint32_t     curr_offset;
    uint8_t      oct8,subchannel;
    uint16_t     arfcn, hsn, maio;
    int hf_subchannel;

    curr_offset = offset;

    /* Octet 2 */
    oct8 = tvb_get_uint8(tvb, curr_offset);

    if ((oct8 & 0xf8) == 0x0)
    {
        proto_tree_add_item(subtree, hf_gsm_a_rr_tch_facch_sacchm, tvb, curr_offset, 1, ENC_NA);
    }
    else if ((oct8 & 0xf8) == 0x08)
    {
        proto_tree_add_item(subtree, hf_gsm_a_rr_tch_facch_sacchf, tvb, curr_offset, 1, ENC_NA);
    }
    else if ((oct8 & 0xf8) == 0xf0)
    {
        proto_tree_add_item(subtree, hf_gsm_a_rr_tch_facch_sacchm_bi, tvb, curr_offset, 1, ENC_NA);
    }
    else
    {
        if ((oct8 & 0xf0) == 0x10)
        {
            hf_subchannel = hf_gsm_a_rr_tch_acch;
            subchannel = ((oct8 & 0x08)>>3);
        }
        else if ((oct8 & 0xe0) == 0x20)
        {
            hf_subchannel = hf_gsm_a_rr_sdcch4_sdcchc4_cbch;
            subchannel = ((oct8 & 0x18)>>3);
        }
        else if ((oct8 & 0xc0) == 0x40)
        {
            hf_subchannel = hf_gsm_a_rr_sdcch8_sdcchc8_cbch;
            subchannel = ((oct8 % 0x38)>>3);
        }
        else if ((oct8 & 0xc0) == 0x80)
        {
            hf_subchannel = hf_gsm_a_rr_tch_facchf_sacchm_bi;
            subchannel = ((oct8 % 0x38)>>3);
        }
        else if ((oct8 & 0xe0) == 0xc0)
        {
            hf_subchannel = hf_gsm_a_rr_tch_facchf_sacchm_uni;
            subchannel = ((oct8 % 0x38)>>3);
        } else {
            hf_subchannel = hf_gsm_a_rr_unknown_channel_info;
            subchannel = oct8;
        }
        proto_tree_add_item(subtree, hf_subchannel, tvb, curr_offset, 1, ENC_NA);
        proto_tree_add_uint(subtree, hf_gsm_a_rr_subchannel, tvb, curr_offset, 1, subchannel);
    }

    proto_tree_add_item(subtree, hf_gsm_a_rr_timeslot, tvb, curr_offset, 1, ENC_BIG_ENDIAN);

    curr_offset +=1;

    /* Octet 3 */
    oct8 = tvb_get_uint8(tvb, curr_offset);
    proto_tree_add_item(subtree, hf_gsm_a_rr_training_sequence, tvb, curr_offset, 1, ENC_BIG_ENDIAN);

    proto_tree_add_item(subtree, hf_gsm_a_rr_hopping_channel, tvb, curr_offset, 1, ENC_NA);
    if ((oct8 & 0x10) == 0x10)
    {
        /* Hopping sequence */
        maio = ((oct8 & 0x0f)<<2) | ((tvb_get_uint8(tvb,curr_offset+1) & 0xc0) >> 6);
        hsn = (tvb_get_uint8(tvb,curr_offset+1) & 0x3f);

        proto_tree_add_uint(subtree, hf_gsm_a_rr_hopping_channel_maio, tvb, curr_offset, 2, maio);
        proto_tree_add_uint(subtree, hf_gsm_a_rr_hsn, tvb, curr_offset, 2, hsn);
    }
    else
    {
        /* single ARFCN */
        arfcn = ((oct8 & 0x03) << 8) | tvb_get_uint8(tvb,curr_offset+1);

        proto_tree_add_bits_item(subtree, hf_gsm_a_rr_spare, tvb, (curr_offset<<3)+4, 2, ENC_NA);
        proto_tree_add_uint(subtree, hf_gsm_a_rr_single_channel_arfcn, tvb, curr_offset, 2, arfcn);
    }

    curr_offset = curr_offset + 2;

    return curr_offset - offset;
}

/*
 * [3] 10.5.2.5c Channel Description 3
 */
static uint16_t
de_rr_ch_dsc3(tvbuff_t *tvb, proto_tree *subtree, packet_info *pinfo _U_, uint32_t offset, unsigned len _U_, char *add_string _U_, int string_len _U_)
{
    uint32_t     curr_offset;
    uint8_t      oct8;
    uint16_t     arfcn, hsn, maio;

    curr_offset = offset;

    /* Octet 2 */
    oct8 = tvb_get_uint8(tvb, curr_offset);
    proto_tree_add_item(subtree, hf_gsm_a_rr_training_sequence, tvb, curr_offset, 1, ENC_BIG_ENDIAN);

    proto_tree_add_item(subtree, hf_gsm_a_rr_hopping_channel, tvb, curr_offset, 1, ENC_NA);
    if ((oct8 & 0x10) == 0x10)
    {
        /* Hopping sequence */
        maio = ((oct8 & 0x0f)<<2) | ((tvb_get_uint8(tvb,curr_offset+1) & 0xc0) >> 6);
        hsn = (tvb_get_uint8(tvb,curr_offset+1) & 0x3f);

        proto_tree_add_uint(subtree, hf_gsm_a_rr_hopping_channel_maio, tvb, curr_offset, 2, maio);
        proto_tree_add_uint(subtree, hf_gsm_a_rr_hsn, tvb, curr_offset, 2, hsn);
    }
    else
    {
        /* single ARFCN */
        arfcn = ((oct8 & 0x03) << 8) | tvb_get_uint8(tvb,curr_offset+1);

        proto_tree_add_bits_item(subtree, hf_gsm_a_rr_spare, tvb, (curr_offset<<3)+4, 2, ENC_NA);
        proto_tree_add_uint(subtree, hf_gsm_a_rr_single_channel_arfcn, tvb, curr_offset, 2, arfcn);
    }

    curr_offset = curr_offset + 2;

    return curr_offset - offset;
}

/*
 * [3] 10.5.2.6 Channel Mode
 */
/* Channel Mode  */
static const value_string gsm_a_rr_channel_mode_vals[] = {
    { 0x00, "signalling only"},
    { 0x01, "speech full rate or half rate version 1 (GSM FR or GSM HR)"},
    { 0xc1, "speech full rate or half rate version 1 (GSM FR or GSM HR) in VAMOS mode" },
    { 0x21, "speech full rate or half rate version 2 (GSM EFR)"},
    { 0xC2, "speech full rate or half rate version 2 (GSM EFR) in VAMOS mode"},
    { 0x41, "speech full rate or half rate version 3 (FR AMR or HR AMR)"},
    { 0xc3, "speech full rate or half rate version 3 (FR AMR or HR AMR) in VAMOS mode"},
    { 0x81, "speech full rate or half rate version 4 (OFR AMR-WB or OHR AMR-WB)"},
    { 0x82, "speech full rate or half rate version 5 (FR AMR-WB )"},
    { 0xc5, "speech full rate or half rate version 5 (FR AMR-WB ) in VAMOS mode"},
    { 0x83, "speech full rate or half rate version 6 (OHR AMR )"},
    { 0x61, "data, 43.5 kbit/s (downlink)+14.5 kbps (uplink)"},
    { 0x62, "data, 29.0 kbit/s (downlink)+14.5 kbps (uplink)"},
    { 0x64, "data, 43.5 kbit/s (downlink)+29.0 kbps (uplink)"},
    { 0x67, "data, 14.5 kbit/s (downlink)+43.5 kbps (uplink)"},
    { 0x65, "data, 14.5 kbit/s (downlink)+29.0 kbps (uplink)"},
    { 0x66, "data, 29.0 kbit/s (downlink)+43.5 kbps (uplink)"},
    { 0x27, "data, 43.5 kbit/s radio interface rate"},
    { 0x63, "data, 32.0 kbit/s radio interface rate"},
    { 0x43, "data, 29.0 kbit/s radio interface rate"},
    { 0x0f, "data, 14.5 kbit/s radio interface rate"},
    { 0x03, "data, 12.0 kbit/s radio interface rate"},
    { 0x0b, "data, 6.0 kbit/s radio interface rate"},
    { 0x13, "data, 3.6 kbit/s radio interface rate"},
    { 0x10, "data, 64.0 kbit/s Transparent Data Bearer"},
    {    0, NULL }
};

uint16_t
de_rr_ch_mode(tvbuff_t *tvb, proto_tree *tree, packet_info *pinfo _U_, uint32_t offset, unsigned len _U_, char *add_string _U_, int string_len _U_)
{
    uint32_t curr_offset;

    curr_offset = offset;

    proto_tree_add_item(tree, hf_gsm_a_rr_channel_mode, tvb, curr_offset, 1, ENC_BIG_ENDIAN);

    curr_offset = curr_offset + 1;

    return curr_offset - offset;
}
/*
 * [3] 10.5.2.7 Channel Mode 2
 */

static const value_string gsm_a_rr_channel_mode2_vals[] = {
    { 0x00, "signalling only"},
    { 0x05, "speech half rate version 1(GSM HR)"},
    { 0x25, "speech half rate version 2(GSM EFR)"},
    { 0x45, "speech half rate version 3(HR AMR)"},
    { 0x85, "speech half rate version 4(OHR AMR-WB)"},
    { 0x06, "speech half rate version 6(OHR AMR )"},
    { 0x0f, "data, 6.0 kbit/s radio interface rate"},
    { 0x17, "data, 3.6 kbit/s radio interface rate"},
    {    0, NULL }
};

static uint16_t
de_rr_ch_mode2(tvbuff_t *tvb, proto_tree *tree, packet_info *pinfo _U_, uint32_t offset, unsigned len _U_, char *add_string _U_, int string_len _U_)
{
    uint32_t curr_offset;

    curr_offset = offset;

    proto_tree_add_item(tree, hf_gsm_a_rr_channel_mode2, tvb, curr_offset, 1, ENC_BIG_ENDIAN);

    curr_offset = curr_offset + 1;

    return curr_offset - offset;
}
/*
 * [3] 10.5.2.7a UTRAN Classmark information element
 */
static uint16_t
de_rr_utran_cm(tvbuff_t *tvb, proto_tree *tree, packet_info *pinfo, uint32_t offset, unsigned len, char *add_string _U_, int string_len _U_)
{
    uint32_t  curr_offset;
    tvbuff_t *rrc_irat_ho_info_tvb;

    curr_offset = offset;
    if (len)
    {
        rrc_irat_ho_info_tvb = tvb_new_subset_length(tvb, curr_offset, len);
        if (rrc_irat_ho_info_handle)
            call_dissector(rrc_irat_ho_info_handle, rrc_irat_ho_info_tvb, pinfo, tree);
    }

    curr_offset += len;
    return curr_offset - offset;
}

/*
 * [3] 10.5.2.7b (void)
 */

/*
 * [3] 10.5.2.7c Classmark Enquiry Mask
 * Bit 8:
 * 0    CLASSMARK CHANGE message is requested
 * 1    CLASSMARK CHANGE message is not requested
 * Bits 7-5 . 5
 * 000  UTRAN CLASSMARK CHANGE message including status on predefined configurations (i.e. Sequence Description) is requested
 * 111  UTRAN CLASSMARK CHANGE message including status on predefined configurations (i.e. Sequence Description) is not requested.
 * All other values shall not be sent. If received, they shall be interpreted as '000'.
 * Bit 4:
 * 0    CDMA2000 CLASSMARK CHANGE message requested
 * 1    CDMA2000 CLASSMARK CHANGE message not requested.
 * Bit 3:
 * 0    GERAN IU MODE CLASSMARK CHANGE message requested
 * 1    GERAN IU MODE CLASSMARK CHANGE message not requested.
 * Bits 2 - 1: spare(0).
 */
static const true_false_string gsm_a_msg_req_value  = {
    "message is not requested",
    "message is requested"
};

static const value_string gsm_a_rr_utran_cm_cng_msg_req_vals[] = {
    { 0x0, "message including status on predefined configurations (i.e. Sequence Description) is requested"},
    { 0x1, "message including status on predefined configurations (i.e. Sequence Description) is requested"},
    { 0x2, "message including status on predefined configurations (i.e. Sequence Description) is requested"},
    { 0x3, "message including status on predefined configurations (i.e. Sequence Description) is requested"},
    { 0x4, "message including status on predefined configurations (i.e. Sequence Description) is requested"},
    { 0x5, "message including status on predefined configurations (i.e. Sequence Description) is requested"},
    { 0x6, "message including status on predefined configurations (i.e. Sequence Description) is requested"},
    { 0x7, "message including status on predefined configurations (i.e. Sequence Description) is not requested."},
    {   0, NULL }
};
uint16_t
de_rr_cm_enq_mask(tvbuff_t *tvb, proto_tree *tree, packet_info *pinfo _U_, uint32_t offset, unsigned len _U_, char *add_string _U_, int string_len _U_)
{
    uint32_t curr_offset;

    curr_offset = offset;

    proto_tree_add_item(tree, hf_gsm_a_rr_cm_cng_msg_req, tvb, curr_offset, 1, ENC_BIG_ENDIAN);
    proto_tree_add_item(tree, hf_gsm_a_rr_utran_cm_cng_msg_req, tvb, curr_offset, 1, ENC_BIG_ENDIAN);
    proto_tree_add_item(tree, hf_gsm_a_rr_cdma2000_cm_cng_msg_req, tvb, curr_offset, 1, ENC_BIG_ENDIAN);
    proto_tree_add_item(tree, hf_gsm_a_rr_geran_iu_cm_cng_msg_req, tvb, curr_offset, 1, ENC_BIG_ENDIAN);

    curr_offset = curr_offset + 1;

    return curr_offset - offset;
}
/*
 * [3] 10.5.2.8 Channel Needed
 */
static const value_string gsm_a_rr_channel_needed_vals[] = {
    { 0x00, "Any channel"},
    { 0x01, "SDCCH"},
    { 0x02, "TCH/F (Full rate)"},
    { 0x03, "TCH/H or TCH/F (Dual rate)"},
    {    0, NULL }
};
uint16_t
de_rr_chnl_needed(tvbuff_t *tvb, proto_tree *subtree, packet_info *pinfo _U_, uint32_t offset, unsigned len _U_, char *add_string _U_, int string_len _U_)
{
    uint32_t curr_offset;
    int     bit_offset;

    curr_offset = offset;
    if (RIGHT_NIBBLE == len)
        bit_offset = 4;
    else
        bit_offset = 0;

    proto_tree_add_bits_item(subtree, hf_gsm_a_rr_chnl_needed_ch1, tvb, (curr_offset<<3)+bit_offset+2, 2, ENC_BIG_ENDIAN);
    proto_tree_add_bits_item(subtree, hf_gsm_a_rr_chnl_needed_ch2, tvb, (curr_offset<<3)+bit_offset, 2, ENC_BIG_ENDIAN);

    curr_offset = curr_offset + 1;

    return curr_offset - offset;
}
/*
 * [3] 10.5.2.8a Channel Request Description
 */

 /*
 * [3] 10.5.2.8b Channel Request Description 2
 */
static const value_string gsm_a_rr_pkt_estab_cause_vals[] = {
    { 0x00, "User Data"},
    { 0x01, "Page Response"},
    { 0x02, "Cell Update"},
    { 0x03, "Mobility Management procedure"},
    {    0, NULL }
};
static const value_string gsm_a_rr_radio_priority_vals[] = {
    { 0x00, "1"},
    { 0x01, "2"},
    { 0x02, "3"},
    { 0x03, "4"},
    {    0, NULL }
};
static const true_false_string gsm_a_rr_llc_pdu_type_value = {
    "LLC PDU is not SACK or ACK",
    "LLC PDU is SACK or ACK"
};
static const true_false_string gsm_a_rr_reduced_latency_cap_value = {
    "The mobile station supports Reduced TTI configurations and Fast Ack/Nack Reporting",
    "The mobile station does not support Reduced TTI configurations and Fast Ack/Nack Reporting"
};
static const value_string gsm_a_rr_egprs2_vals[] = {
    { 0x00, "The mobile station does not support either EGPRS2-A or EGPRS2-B"},
    { 0x01, "The mobile station supports EGPRS2-A"},
    { 0x02, "The mobile station supports both EGPRS2-A and EGPRS2-B"},
    {    0, NULL }
};
static uint16_t
de_rr_chnl_req_desc2(tvbuff_t *tvb, proto_tree *tree, packet_info *pinfo _U_, uint32_t offset, unsigned len, char *add_string _U_, int string_len _U_)
{
    uint32_t bit_offset = offset << 3;

    proto_tree_add_bits_item(tree, hf_gsm_a_rr_pkt_estab_cause, tvb, bit_offset, 2, ENC_BIG_ENDIAN);
    bit_offset += 2;
    proto_tree_add_bits_item(tree, hf_gsm_a_rr_peak_throughput_class, tvb, bit_offset, 4, ENC_BIG_ENDIAN);
    bit_offset += 4;
    proto_tree_add_bits_item(tree, hf_gsm_a_rr_radio_priority, tvb, bit_offset, 2, ENC_BIG_ENDIAN);
    bit_offset += 2;
    proto_tree_add_bits_item(tree, hf_gsm_a_rr_rlc_mode, tvb, bit_offset, 1, ENC_BIG_ENDIAN);
    bit_offset += 1;
    proto_tree_add_bits_item(tree, hf_gsm_a_rr_llc_pdu_type, tvb, bit_offset, 1, ENC_BIG_ENDIAN);
    bit_offset += 1;
    proto_tree_add_bits_item(tree, hf_gsm_a_rr_rlc_octet_count, tvb, bit_offset, 16, ENC_BIG_ENDIAN);
    bit_offset += 16;
    if (gsm_rr_csn_flag(tvb, tree, bit_offset++, hf_gsm_a_rr_pfi_present)) {
        proto_tree_add_bits_item(tree, hf_gsm_a_rr_pfi, tvb, bit_offset, 7, ENC_BIG_ENDIAN);
        bit_offset += 7;
    }
    (void) gsm_rr_csn_HL_flag(tvb, tree, 0, bit_offset++, hf_gsm_a_rr_multiple_tbf_procedures);
    bit_offset += 1;
    if (gsm_rr_csn_HL_flag(tvb, tree, (offset+len)<<3, bit_offset++, hf_gsm_a_rr_additions_in_rel_7)) {
        proto_tree_add_bits_item(tree, hf_gsm_a_rr_rlc_non_pers_mode_cap, tvb, bit_offset, 1, ENC_BIG_ENDIAN);
        bit_offset += 1;
        proto_tree_add_bits_item(tree, hf_gsm_a_rr_reduced_latency_cap, tvb, bit_offset, 1, ENC_BIG_ENDIAN);
        bit_offset += 1;
        proto_tree_add_bits_item(tree, hf_gsm_a_rr_ul_egprs2, tvb, bit_offset, 2, ENC_BIG_ENDIAN);
        bit_offset += 2;
        proto_tree_add_bits_item(tree, hf_gsm_a_rr_dl_egprs2, tvb, bit_offset, 2, ENC_BIG_ENDIAN);
        bit_offset += 2;
        if (gsm_rr_csn_HL_flag(tvb, tree, (offset+len)<<3, bit_offset++, hf_gsm_a_rr_additions_in_rel_9)) {
            proto_tree_add_bits_item(tree, hf_gsm_a_rr_emst_ms_cap, tvb, bit_offset, 1, ENC_BIG_ENDIAN);
            /*bit_offset += 1;*/
        }
    }

    return len;
}

/*
 * [3] 10.5.2.9 Cipher Mode Setting
 */
/* SC (octet 1) */
static const value_string gsm_a_rr_sc_vals[] = {
    { 0, "No ciphering"},
    { 1, "Start ciphering"},
    { 0, NULL }
};
/* algorithm identifier
 * If SC=1 then:
 * bits
 * 4 3 2
 */
uint16_t
de_rr_cip_mode_set(tvbuff_t *tvb, proto_tree *tree, packet_info *pinfo _U_, uint32_t offset, unsigned len, char *add_string _U_, int string_len _U_)
{
    uint32_t curr_offset;
    int     bit_offset;
    uint64_t value;

    curr_offset = offset;

    /* Cipher Mode Setting
     * Note: The coding of fields SC and algorithm identifier is defined in [44.018]
     * as part of the Cipher Mode Setting IE.
     */
    if (RIGHT_NIBBLE == len)
        bit_offset = 4;
    else
        bit_offset = 0;

    proto_tree_add_bits_ret_val(tree, hf_gsm_a_rr_sc, tvb, (curr_offset<<3)+bit_offset+3, 1, &value, ENC_BIG_ENDIAN);
    if (value == 1){ /* Start ciphering */
        /* algorithm identifier */
        proto_tree_add_bits_item(tree, hf_gsm_a_rr_algorithm_id, tvb, (curr_offset<<3)+bit_offset, 3, ENC_BIG_ENDIAN);
    }
    curr_offset = curr_offset + 1;

    return curr_offset - offset;
}
/*
 * [3] 10.5.2.10 Cipher Response
 */
/* CR (octet 1) */
static const value_string gsm_a_rr_cr_vals[] = {
    { 0, "IMEISV shall not be included"},
    { 1, "IMEISV shall be included"},
    { 0, NULL }
};

static uint16_t
de_rr_cip_mode_resp(tvbuff_t *tvb, proto_tree *tree, packet_info *pinfo _U_, uint32_t offset, unsigned len, char *add_string _U_, int string_len _U_)
{
    uint32_t curr_offset;
    int     bit_offset;

    curr_offset = offset;
    if (RIGHT_NIBBLE == len)
        bit_offset = 4;
    else
        bit_offset = 0;

    /* Cipher Mode Response
     * Note: The coding of field CR is defined in [44.018]
     * as part of the Cipher Mode Response IE.
     */
    proto_tree_add_bits_item(tree, hf_gsm_a_rr_cr, tvb, (curr_offset<<3)+bit_offset+3, 1, ENC_BIG_ENDIAN);
    curr_offset = curr_offset + 1;

    return curr_offset - offset;
}
/* [3] 10.5.2.11 Control Channel Description */

static const value_string gsm_a_rr_mscr_vals[] = {
    { 0, "MSC is Release '98 or older"},
    { 1, "MSC is Release '99 onwards"},
    { 0, NULL }
};

static const value_string gsm_a_rr_att_vals[] = {
    { 0, "MSs in the cell are not allowed to apply IMSI attach and detach procedure"},
    { 1, "MSs in the cell shall apply IMSI attach and detach procedure"},
    { 0, NULL }
};

static const value_string gsm_a_rr_ccch_conf_vals[] = {
    { 0, "1 basic physical channel used for CCCH, not combined with SDCCHs"},
    { 1, "1 basic physical channel used for CCCH, combined with SDCCHs"},
    { 2, "2 basic physical channels used for CCCH, not combined with SDCCHs"},
    { 3, "Reserved"},
    { 4, "3 basic physical channels used for CCCH, not combined with SDCCHs"},
    { 5, "Reserved"},
    { 6, "4 basic physical channels used for CCCH, not combined with SDCCHs"},
    { 7, "Reserved"},
    { 0, NULL }
};

static const value_string gsm_a_rr_cbq3_vals[] = {
    { 0, "Iu mode not supported"},
    { 1, "Iu mode capable MSs barred"},
    { 2, "Iu mode supported, cell not barred"},
    { 3, "Iu mode supported, cell not barred. The network shall not use this value"},
    { 0, NULL }
};

static uint16_t
de_rr_ctrl_ch_desc(tvbuff_t *tvb, proto_tree *subtree, packet_info *pinfo _U_, uint32_t offset, unsigned len _U_, char *add_string _U_, int string_len _U_)
{
    uint8_t oct;
    uint32_t curr_offset;

    curr_offset = offset;

    proto_tree_add_item(subtree, hf_gsm_a_rr_mscr, tvb, curr_offset, 1, ENC_BIG_ENDIAN);
    proto_tree_add_item(subtree, hf_gsm_a_rr_att, tvb, curr_offset, 1, ENC_BIG_ENDIAN);
    proto_tree_add_item(subtree, hf_gsm_a_rr_bs_ag_blks_res, tvb, curr_offset, 1, ENC_BIG_ENDIAN);
    proto_tree_add_item(subtree, hf_gsm_a_rr_ccch_conf, tvb, curr_offset, 1, ENC_BIG_ENDIAN);

    curr_offset = curr_offset + 1;
    oct = tvb_get_uint8(tvb, curr_offset);

    proto_tree_add_bits_item(subtree, hf_gsm_a_rr_cbq3, tvb, (curr_offset<<3)+1, 2, ENC_BIG_ENDIAN);
    proto_tree_add_uint(subtree, hf_gsm_a_rr_bs_pa_mfrms, tvb, curr_offset, 1, (oct&0x07)+2);

    curr_offset = curr_offset + 1;

    proto_tree_add_item(subtree, hf_gsm_a_rr_t3212, tvb, curr_offset, 1, ENC_BIG_ENDIAN);

    curr_offset = curr_offset + 1;

    return curr_offset - offset;
}

/* [3] 10.5.2.11a  DTM Information Details
 */
static const true_false_string tfs_supported_not_supported_by_cell = { "Supported by cell", "Not supported by cell" };

static uint16_t
de_rr_dtm_info_details(tvbuff_t *tvb, proto_tree *tree, packet_info *pinfo _U_, uint32_t offset, unsigned len, char *add_string _U_, int string_len _U_)
{
    uint32_t bit_offset = offset << 3;

    proto_tree_add_bits_item(tree, hf_gsm_a_rr_max_lapdm, tvb, bit_offset, 3, ENC_BIG_ENDIAN);
    bit_offset += 3;
    proto_tree_add_bits_item(tree, hf_gsm_a_rr_gprs_ms_txpwr_max_ccch, tvb, bit_offset, 5, ENC_BIG_ENDIAN);
    bit_offset += 5;
    proto_tree_add_bits_item(tree, hf_gsm_a_rr_cell_id, tvb, bit_offset, 16, ENC_BIG_ENDIAN);
    bit_offset += 16;
    if (gsm_rr_csn_HL_flag(tvb, tree, (offset+len)<<3, bit_offset++, hf_gsm_a_rr_additions_in_rel_6)) {
        if (gsm_rr_csn_flag(tvb, tree, bit_offset++, hf_gsm_a_rr_msms_procedures)) {
            proto_tree_add_bits_item(tree, hf_gsm_a_rr_dedicated_mode_mbms_notification_support, tvb, bit_offset, 1, ENC_BIG_ENDIAN);
            bit_offset += 1;
            proto_tree_add_bits_item(tree, hf_gsm_a_rr_mnci_support, tvb, bit_offset, 1, ENC_BIG_ENDIAN);
            /*bit_offset += 1;*/
        }
    }

    return len;
}

/*
 * [3] 10.5.2.11b  Dynamic ARFCN Mapping
 */
static const value_string gsm_a_rr_gsm_band_vals[] = {
    {  0, "GSM 750"},
    {  1, "DCS 1800"},
    {  2, "PCS 1900"},
    {  3, "GSM T 380"},
    {  4, "GSM T 410"},
    {  5, "GSM T 900"},
    {  6, "GSM 710"},
    {  7, "GSM T 810"},
    {  8, "Reserved"},
    {  9, "Reserved"},
    { 10, "Reserved"},
    { 11, "Reserved"},
    { 12, "Reserved"},
    { 13, "Reserved"},
    { 14, "Reserved"},
    { 15, "Reserved"},
    {  0, NULL }
};


static uint16_t
de_rr_dyn_arfcn_map(tvbuff_t *tvb, proto_tree *tree, packet_info *pinfo, uint32_t offset, unsigned len, char *add_string _U_, int string_len _U_)
{
    unsigned bit_offset;

    bit_offset = offset << 3;

    while (gsm_rr_csn_flag(tvb, tree, bit_offset++, hf_gsm_a_rr_repeat_dynamic_arfcn_mapping))
    {
        proto_tree_add_bits_item(tree, hf_gsm_a_rr_gsm_band, tvb, bit_offset, 4, ENC_BIG_ENDIAN);
        bit_offset += 4;
        proto_tree_add_bits_item(tree, hf_gsm_a_rr_arfcn_first, tvb, bit_offset, 10, ENC_BIG_ENDIAN);
        bit_offset += 10;
        proto_tree_add_bits_item(tree, hf_gsm_a_rr_band_offset, tvb, bit_offset, 10, ENC_BIG_ENDIAN);
        bit_offset += 10;
        proto_tree_add_bits_item(tree, hf_gsm_a_rr_arfcn_range, tvb, bit_offset, 7, ENC_BIG_ENDIAN);
        bit_offset += 7;
    }

    if (((bit_offset + 7) >> 3) > (offset + len))
    {
       expert_add_info(pinfo, proto_tree_get_parent(tree), &ei_gsm_a_rr_ie_overrun);
    }
    else if ((bit_offset >> 3) < (offset + len))
    {
       expert_add_info(pinfo, proto_tree_get_parent(tree), &ei_gsm_a_rr_ie_underrun);
    }
    return len;
}
/*
 * [3] 10.5.2.12 Frequency Channel Sequence
 */
static uint16_t
de_rr_freq_ch_seq(tvbuff_t *tvb, proto_tree *tree, packet_info *pinfo _U_, uint32_t offset, unsigned len _U_, char *add_string _U_, int string_len _U_)
{
    uint32_t curr_offset;
    int     bit_offset, i;

    curr_offset = offset;

    proto_tree_add_item(tree, hf_gsm_a_rr_lowest_arfcn, tvb, curr_offset, 1, ENC_BIG_ENDIAN);
    curr_offset += 1;
    bit_offset = curr_offset << 3;
    for (i=0; i<16; i++)
    {
        proto_tree_add_bits_item(tree, hf_gsm_a_rr_inc_skip_arfcn, tvb, bit_offset, 4, ENC_BIG_ENDIAN);
        bit_offset += 4;
    }

    curr_offset = curr_offset + 8;

    return curr_offset - offset;
}

/*
 * [3] 10.5.2.13 Frequency List
 */
/*
 * [3] 10.5.2.13 Frequency List
 *
 * Bit Bit Bit Bit Bit format notation
 * 8 7  4 3 2
 * 0 0  X X X bit map 0
 * 1 0  0 X X 1024 range
 * 1 0  1 0 0 512 range
 * 1 0  1 0 1 256 range
 * 1 0  1 1 0 128 range
 * 1 0  1 1 1 variable bit map
 */
/* The mask 0xce (1100 1110) will produce the result 0110 0111*/
static const value_string gsm_a_rr_freq_list_format_id_vals[] = {
    { 0x00, "bit map 0"},
    { 0x02, "bit map 0"},
    { 0x04, "bit map 0"},
    { 0x06, "bit map 0"},
    { 0x08, "bit map 0"},
    { 0x0a, "bit map 0"},
    { 0x0c, "bit map 0"},
    { 0x0e, "bit map 0"},
    { 0x40, "1024 range"},
    { 0x41, "1024 range"},
    { 0x42, "1024 range"},
    { 0x43, "1024 range"},
    { 0x44, "512 range"},
    { 0x45, "256 range"},
    { 0x46, "128 range"},
    { 0x47, "variable bit map"},
    { 0x00, NULL }
};

static uint16_t
de_rr_freq_list(tvbuff_t *tvb, proto_tree *tree, packet_info *pinfo, uint32_t offset, unsigned len, char *add_string _U_, int string_len _U_)
{
    return dissect_arfcn_list(tvb, tree, pinfo, offset, len, add_string, string_len);
}
/*
 * [3] 10.5.2.14 Frequency Short List
 *
 *The Frequency Short List information element is a type 3 information element of 10 octet length.
 *
 * This element is encoded exactly as the Frequency List information element,
 * except that it has a fixed length instead of a variable length and does
 * not contain a length indicator and that it shall not be encoded in bitmap 0 format.
 */

 static uint16_t
de_rr_freq_short_list(tvbuff_t *tvb, proto_tree *tree, packet_info *pinfo, uint32_t offset, unsigned len _U_, char *add_string _U_, int string_len _U_)
 {
     return dissect_arfcn_list(tvb, tree, pinfo, offset, 9, add_string, string_len);
 }

/*
 * [3] 10.5.2.14a Frequency Short List 2
 *
 * The Frequency Short List information element is a type 3 information element of 8 octet length.
 *
 * This element is encoded exactly as the Frequency List information element,
 * except that it has a fixed length instead of a variable length and does
 * not contain a length indicator and that it shall not be encoded in bitmap 0 format.
 */
static uint16_t
de_rr_freq_short_list2(tvbuff_t *tvb, proto_tree *tree, packet_info *pinfo, uint32_t offset, unsigned len _U_, char *add_string _U_, int string_len _U_)
{
    return dissect_arfcn_list(tvb, tree, pinfo, offset, 8, add_string, string_len);
}
/*
 * [3] 10.5.2.14b Group Channel Description
 */

/*
 * [3] 10.5.2.14c GPRS Resumption
 */
static const true_false_string gsm_a_rr_gprs_resumption_ack_value  = {
    "Resumption of GPRS services successfully acknowledged",
    "Resumption of GPRS services not successfully acknowledged"
};

static uint16_t
de_rr_gprs_resumption(tvbuff_t *tvb, proto_tree *tree, packet_info *pinfo _U_, uint32_t offset, unsigned len _U_, char *add_string _U_, int string_len _U_)
{
    uint32_t curr_offset;

    curr_offset = offset;

    proto_tree_add_item(tree, hf_gsm_a_rr_gprs_resumption_ack, tvb, curr_offset, 1, ENC_BIG_ENDIAN);
    curr_offset += 1;

    return (curr_offset - offset);
}

/*
 * [3] 10.5.2.14d GPRS broadcast information
 */
#define GPRS_CELL_OPTIONS_CHECK_REMAINING_EXT_LEN(x) \
    {                                                \
        curr_bit_offset += x;                        \
        value -= x;                                  \
        if (value <= 0)                              \
        {                                            \
            goto end;                                \
        }                                            \
    }

static int
de_rr_rest_oct_gprs_cell_options(tvbuff_t *tvb, proto_tree *tree, int bit_offset)
{
    proto_tree *subtree, *subtree2;
    proto_item *item, *item2;
    int         curr_bit_offset, curr_bit_offset_sav;
    int16_t     value;

    curr_bit_offset = bit_offset;

    subtree = proto_tree_add_subtree(tree, tvb, curr_bit_offset>>3, -1,
                    ett_gsm_rr_rest_octets_elem[DE_RR_REST_OCTETS_GPRS_CELL_OPTIONS], &item,
                    gsm_rr_rest_octets_elem_strings[DE_RR_REST_OCTETS_GPRS_CELL_OPTIONS]);
    proto_tree_add_bits_item(subtree, hf_gsm_a_rr_nmo, tvb, curr_bit_offset, 2, ENC_BIG_ENDIAN);
    curr_bit_offset += 2;
    proto_tree_add_bits_item(subtree, hf_gsm_a_rr_t3168, tvb, curr_bit_offset, 3, ENC_BIG_ENDIAN);
    curr_bit_offset += 3;
    proto_tree_add_bits_item(subtree, hf_gsm_a_rr_t3192, tvb, curr_bit_offset, 3, ENC_BIG_ENDIAN);
    curr_bit_offset += 3;
    proto_tree_add_bits_item(subtree, hf_gsm_a_rr_drx_timer_max, tvb, curr_bit_offset, 3, ENC_BIG_ENDIAN);
    curr_bit_offset += 3;
    proto_tree_add_bits_item(subtree, hf_gsm_a_rr_access_burst_type, tvb, curr_bit_offset, 1, ENC_BIG_ENDIAN);
    curr_bit_offset += 1;
    proto_tree_add_bits_item(subtree, hf_gsm_a_rr_control_ack_type, tvb, curr_bit_offset, 1, ENC_BIG_ENDIAN);
    curr_bit_offset += 1;
    proto_tree_add_bits_item(subtree, hf_gsm_a_rr_bs_cv_max, tvb, curr_bit_offset, 4, ENC_BIG_ENDIAN);
    curr_bit_offset += 4;
    if (gsm_rr_csn_flag(tvb, subtree, curr_bit_offset++, hf_gsm_a_rr_pan_bits_present))
    {
        proto_tree_add_bits_item(subtree, hf_gsm_a_rr_pan_dec, tvb, curr_bit_offset, 3, ENC_BIG_ENDIAN);
        curr_bit_offset += 3;
        proto_tree_add_bits_item(subtree, hf_gsm_a_rr_pan_inc, tvb, curr_bit_offset, 3, ENC_BIG_ENDIAN);
        curr_bit_offset += 3;
        proto_tree_add_bits_item(subtree, hf_gsm_a_rr_pan_max, tvb, curr_bit_offset, 3, ENC_BIG_ENDIAN);
        curr_bit_offset += 3;
    }
    if (gsm_rr_csn_flag(tvb, subtree, curr_bit_offset++, hf_gsm_a_rr_optional_extensions_present))
    { /* Optional extension information */
        curr_bit_offset_sav = curr_bit_offset;
        subtree2 = proto_tree_add_subtree(subtree, tvb, curr_bit_offset>>3, -1, ett_gsm_rr_rest_octets_elem[DE_RR_REST_OCTETS_GPRS_CELL_OPTIONS_EXT_INFO], &item2,
                                    gsm_rr_rest_octets_elem_strings[DE_RR_REST_OCTETS_GPRS_CELL_OPTIONS_EXT_INFO]);
        value = (int16_t)tvb_get_bits8(tvb,curr_bit_offset,6);
        proto_tree_add_uint(subtree2, hf_gsm_a_rr_extension_length, tvb, curr_bit_offset>>3, 1, value);
        curr_bit_offset += 6;
        value += 1;
        proto_item_set_len(item2,((curr_bit_offset+value)>>3) - (curr_bit_offset_sav>>3)+1);
        if (gsm_rr_csn_flag(tvb, subtree2, curr_bit_offset, hf_gsm_a_rr_egprs_supported))
        {
            GPRS_CELL_OPTIONS_CHECK_REMAINING_EXT_LEN(1);
            proto_tree_add_bits_item(subtree2, hf_gsm_a_rr_egprs_packet_channel_request, tvb, curr_bit_offset, 1, ENC_BIG_ENDIAN);
            GPRS_CELL_OPTIONS_CHECK_REMAINING_EXT_LEN(1);
            proto_tree_add_bits_item(subtree2, hf_gsm_a_rr_bep_period, tvb, curr_bit_offset, 4, ENC_BIG_ENDIAN);
            GPRS_CELL_OPTIONS_CHECK_REMAINING_EXT_LEN(4);
        }
        else
        {
            GPRS_CELL_OPTIONS_CHECK_REMAINING_EXT_LEN(1);
        }
        proto_tree_add_bits_item(subtree2, hf_gsm_a_rr_pfc_feature_mode, tvb, curr_bit_offset, 1, ENC_BIG_ENDIAN);
        GPRS_CELL_OPTIONS_CHECK_REMAINING_EXT_LEN(1);
        proto_tree_add_bits_item(subtree2, hf_gsm_a_rr_dtm_support, tvb, curr_bit_offset, 1, ENC_BIG_ENDIAN);
        GPRS_CELL_OPTIONS_CHECK_REMAINING_EXT_LEN(1);
        proto_tree_add_bits_item(subtree2, hf_gsm_a_rr_bss_paging_coordination, tvb, curr_bit_offset, 1, ENC_BIG_ENDIAN);
        GPRS_CELL_OPTIONS_CHECK_REMAINING_EXT_LEN(1);
        /* Rel 4 extension */
        proto_tree_add_bits_item(subtree2, hf_gsm_a_rr_ccn_active, tvb, curr_bit_offset, 1, ENC_BIG_ENDIAN);
        GPRS_CELL_OPTIONS_CHECK_REMAINING_EXT_LEN(1);
        proto_tree_add_bits_item(subtree2, hf_gsm_a_rr_nw_ext_utbf, tvb, curr_bit_offset, 1, ENC_BIG_ENDIAN);
        GPRS_CELL_OPTIONS_CHECK_REMAINING_EXT_LEN(1);
        /* Rel 6 extension */
        proto_tree_add_bits_item(subtree2, hf_gsm_a_rr_multiple_tbf_capability, tvb, curr_bit_offset, 1, ENC_BIG_ENDIAN);
        GPRS_CELL_OPTIONS_CHECK_REMAINING_EXT_LEN(1);
        proto_tree_add_bits_item(subtree2, hf_gsm_a_rr_ext_utbf_no_data, tvb, curr_bit_offset, 1, ENC_BIG_ENDIAN);
        GPRS_CELL_OPTIONS_CHECK_REMAINING_EXT_LEN(1);
        proto_tree_add_bits_item(subtree2, hf_gsm_a_rr_dtm_enhancements_capability, tvb, curr_bit_offset, 1, ENC_BIG_ENDIAN);
        GPRS_CELL_OPTIONS_CHECK_REMAINING_EXT_LEN(1);
        if (gsm_rr_csn_flag(tvb, subtree2, curr_bit_offset, hf_gsm_a_rr_msms_procedures))
        {
            GPRS_CELL_OPTIONS_CHECK_REMAINING_EXT_LEN(1);
            proto_tree_add_bits_item(subtree2, hf_gsm_a_rr_dedicated_mode_mbms_notification_support, tvb, curr_bit_offset, 1, ENC_BIG_ENDIAN);
            GPRS_CELL_OPTIONS_CHECK_REMAINING_EXT_LEN(1);
            proto_tree_add_bits_item(subtree2, hf_gsm_a_rr_mnci_support, tvb, curr_bit_offset, 1, ENC_BIG_ENDIAN);
            GPRS_CELL_OPTIONS_CHECK_REMAINING_EXT_LEN(1);
        }
        else
        {
            GPRS_CELL_OPTIONS_CHECK_REMAINING_EXT_LEN(1);
        }
        /* Rel 7 extension */
        proto_tree_add_bits_item(subtree2, hf_gsm_a_rr_reduced_latency_access, tvb, curr_bit_offset, 1, ENC_BIG_ENDIAN);
        GPRS_CELL_OPTIONS_CHECK_REMAINING_EXT_LEN(1);
        /* Remaining (undecoded?) extensions */
        curr_bit_offset += value;
    }
    end:
        proto_item_set_len(item,((curr_bit_offset>>3) - (bit_offset>>3) + 1));

        return (curr_bit_offset - bit_offset);
}

static int
de_rr_rest_oct_gprs_power_control_parameters(tvbuff_t *tvb, proto_tree *tree, int bit_offset)
{
    proto_tree *subtree;
    proto_item *item;
    int         curr_bit_offset;

    curr_bit_offset = bit_offset;

    subtree = proto_tree_add_subtree(tree, tvb, curr_bit_offset>>3, -1, ett_gsm_rr_rest_octets_elem[DE_RR_REST_OCTETS_GPRS_POWER_CONTROL_PARAMS], &item,
        gsm_rr_rest_octets_elem_strings[DE_RR_REST_OCTETS_GPRS_POWER_CONTROL_PARAMS]);
    proto_tree_add_bits_item(subtree, hf_gsm_a_rr_alpha, tvb, curr_bit_offset, 4, ENC_BIG_ENDIAN);
    curr_bit_offset += 4;
    proto_tree_add_bits_item(subtree, hf_gsm_a_rr_t_avg_w, tvb, curr_bit_offset, 5, ENC_BIG_ENDIAN);
    curr_bit_offset += 5;
    proto_tree_add_bits_item(subtree, hf_gsm_a_rr_t_avg_t, tvb, curr_bit_offset, 5, ENC_BIG_ENDIAN);
    curr_bit_offset += 5;
    proto_tree_add_bits_item(subtree, hf_gsm_a_rr_pc_meas_chan, tvb, curr_bit_offset, 1, ENC_BIG_ENDIAN);
    curr_bit_offset += 1;
    proto_tree_add_bits_item(subtree, hf_gsm_a_rr_n_avg_i, tvb, curr_bit_offset, 4, ENC_BIG_ENDIAN);
    curr_bit_offset += 4;
    proto_item_set_len(item,((curr_bit_offset>>3) - (bit_offset>>3) + 1));

    return (curr_bit_offset - bit_offset);
}

static uint16_t
de_rr_gprs_broadcast_info(tvbuff_t *tvb, proto_tree *tree, packet_info *pinfo _U_, uint32_t offset, unsigned len , char *add_string _U_, int string_len _U_)
{
    uint32_t curr_offset;
    int     bit_offset;

    curr_offset = offset;
    bit_offset = curr_offset << 3;

    bit_offset += de_rr_rest_oct_gprs_cell_options(tvb, tree, bit_offset);
    /*bit_offset += */de_rr_rest_oct_gprs_power_control_parameters(tvb, tree, bit_offset);
    curr_offset += len;

    return (curr_offset - offset);
}

/*
 * [3] 10.5.2.15 Handover Reference
 */
static uint16_t
de_rr_ho_ref(tvbuff_t *tvb, proto_tree *subtree, packet_info *pinfo _U_, uint32_t offset, unsigned len _U_, char *add_string _U_, int string_len _U_)
{
    uint32_t curr_offset;

    curr_offset = offset;

    /* Handover reference value */
    proto_tree_add_item(subtree, hf_gsm_a_rr_ho_ref_val, tvb, curr_offset, 1, ENC_BIG_ENDIAN);

    curr_offset = curr_offset + 1;

    return curr_offset - offset;
}

static const value_string gsm_a_access_tech_type_vals[] = {
    { 0, "GSM P"},
    { 1, "GSM E --note that GSM E covers GSM P"},
    { 2, "GSM R --note that GSM R covers GSM E and GSM P"},
    { 3, "GSM 1800"},
    { 4, "GSM 1900"},
    { 5, "GSM 450"},
    { 6, "GSM 480"},
    { 7, "GSM 850"},
    { 8, "GSM 750"},
    { 9, "GSM T 380"},
    { 10, "GSM T 410"},
    { 11, "GSM T 900"},
    { 12, "GSM 710"},
    { 13, "GSM T 810"},
    { 14, "reserved"},
    { 15, "Indicates the presence of a list of Additional access technologies"},
    { 0, NULL }
};


static const value_string gsm_a_egprs_mcs_vals[] = {
    { 0, "MCS-1"},
    { 1, "MCS-2"},
    { 2, "MCS-3"},
    { 3, "MCS-4"},
    { 4, "MCS-5"},
    { 5, "MCS-6"},
    { 6, "MCS-7"},
    { 7, "MCS-8"},
    { 8, "MCS-9"},
    { 9, "MCS-5-7"},
    { 10, "MCS-6-9"},
    { 11, "reserved"},
    { 0, NULL }
};

static const value_string gsm_a_gprs_cs_vals[] = {
    { 0, "CS-1"},
    { 1, "CS-2"},
    { 2, "CS-3"},
    { 3, "CS-4"},
    { 0, NULL }
};


static const true_false_string gsm_a_tlli_block_channel_coding_vals = {
    "mobile station shall use coding scheme as specified by the corresponding CHANNEL CODING COMMAND or EGPRS CHANNEL CODING COMMAND field",
    "mobile station shall use CS-1 in GPRS TBF mode or MCS-1 in EGPRS TBF mode"
};

static const true_false_string gsm_a_resegment_vals = {
    "Retransmitted RLC data blocks shall be re-segmented according to commanded MCS",
    "Retransmitted RLC data blocks shall not be re-segmented"
};

static const true_false_string gsm_a_polling_vals = {
    "MS shall send a PACKET CONTROL ACKNOWLEDGEMENT message in the uplink block specified by TBF Starting Time, on the assigned PDCH",
    "no action is required from MS"
};

static const true_false_string gsm_a_usf_granularity_vals = {
    "the mobile station shall transmit four consecutive RLC/MAC blocks",
    "the mobile station shall transmit one RLC/MAC block"
};

static const true_false_string gsm_a_rlc_mode_vals = {
    "RLC unacknowledged mode",
    "RLC acknowledged mode"
};

static const true_false_string gsm_a_ta_valid_vals = {
    "the timing advance value is valid",
    "the timing advance value is not valid"
};



static const value_string gsm_a_egprs_windows_size_vals[] = {
    { 0, "64"},
    { 1, "96"},
    { 2, "128"},
    { 3, "160"},
    { 4, "192"},
    { 5, "224"},
    { 6, "256"},
    { 7, "288"},
    { 8, "320"},
    { 9, "352"},
    { 10, "384"},
    { 11, "416"},
    { 12, "448"},
    { 13, "480"},
    { 14, "512"},
    { 15, "544"},
    { 16, "576"},
    { 17, "608"},
    { 18, "640"},
    { 19, "672"},
    { 20, "704"},
    { 21, "736"},
    { 22, "768"},
    { 23, "800"},
    { 24, "832"},
    { 25, "864"},
    { 26, "896"},
    { 27, "928"},
    { 28, "960"},
    { 29, "992"},
    { 30, "1024"},
    { 31, "reserved"},
    { 0, NULL }
};

static void fmt_2db_units(char *label, uint32_t val)
{
    snprintf(label, ITEM_LABEL_LENGTH, "%u dB (%u)", val * 2, val);
}


static const value_string gsm_a_link_quality_meas_mode_vals[] = {
    {  0, "The MS shall not report either interference measurements or per slot BEP measurements"},
    {  1, "The MS shall report available interference measurements for timeslots 0 through 7"},
    {  2, "The MS shall report mean BEP on each assigned time slot ... No interference measurements shall be reported..."},
    {  3, "The MS shall report mean BEP on each assigned time slot ... In addition to mean BEP, the MS shall report interference measurements for no more than four time slots..."},
    {  0, NULL }
};

static const true_false_string gsm_a_rr_ul_xtti_tbf_assignment_vals = {
    "An uplink BTTI TBF is assigned",
    "An uplink RTTI TBF is assigned"
     };

static const true_false_string gsm_a_rr_dl_xtti_tbf_assignment_vals = {
    "An downlink BTTI TBF is assigned",
    "An downlink RTTI TBF is assigned"
     };

static const true_false_string gsm_a_rr_fanr_act_state_vals = {
    "FANR is not activated for the assigned TBF",
    "FANR is activated for the assigned TBF"
     };

static const true_false_string gsm_a_rr_encoding_selection_vals = {
    "SSN - based encoding is selected",
    "Time - based encoding is selected"
     };

static const true_false_string gsm_a_rr_nof_pdch_pairs_vals = {
    "One PDCH Pair assigned",
    "Two PDCH Pairs assigned"
     };

static const value_string gsm_a_rr_rtti_usf_mode_vals[] = {
    { 0, "BTTI USF Mode is used" },
    { 1, "RTTI USF Mode is used" },
    { 0, NULL }
};

static const value_string gsm_a_rr_pdch_pair_indic_vals[] = {
    { 0x0, "uplink PDCH pair: [i, i + 1] | downlink PDCH pair: [i, i + 1]" },
    { 0x1, "uplink PDCH pair: [i, i + 1] | downlink PDCH pair: [i - 1, i]" },
    { 0x2, "uplink PDCH pair: [i, i + 1] | downlink PDCH pair: [i - 2, i]" },
    { 0x3, "uplink PDCH pair: [i, i + 2] | downlink PDCH pair: [i - 1, i]" },
    { 0x4, "uplink PDCH pairs: [i, i + 1], [i + 2, i + 3] | downlink PDCH pairs: [i, i + 1], [i + 2, i + 3]" },
    { 0x5, "not used" },
    { 0x6, "not used" },
    { 0x7, "not used" },
    { 0, NULL }
};

static const value_string gsm_a_rr_egprs_level_vals[] = {
    { 0x0, "EGPRS" },
    { 0x1, "EGPRS2 - A" },
    { 0x2, "EGPRS2 - B" },
    { 0x3, "reserved" },
    { 0, NULL }
};

static const value_string gsm_a_rr_event_based_fanr_vals[] = {
    { 0, "The MS shall not use event - based FANR" },
    { 1, "The MS shall use event - based FANR" },
    { 0, NULL }
};

static uint16_t
de_tbf_starting_time(tvbuff_t *tvb, proto_tree *tree, uint32_t bit_offset)
{
    proto_item *item;
    uint32_t    curr_bit_offset;
    uint16_t    rfn, t;
    uint64_t    t1, t2, t3;

    curr_bit_offset = bit_offset;

    proto_tree_add_bits_ret_val(tree, hf_gsm_a_rr_tbf_T1prim, tvb, curr_bit_offset, 5, &t1, ENC_BIG_ENDIAN);
    curr_bit_offset += 5;
    proto_tree_add_bits_ret_val(tree, hf_gsm_a_rr_tbf_T3, tvb, curr_bit_offset, 6, &t3, ENC_BIG_ENDIAN);
    curr_bit_offset += 6;
    proto_tree_add_bits_ret_val(tree, hf_gsm_a_rr_tbf_T2, tvb, curr_bit_offset, 5, &t2, ENC_BIG_ENDIAN);
    curr_bit_offset += 5;


    /* great care needed with signed/unsigned - -1 in unsigned is 0xffff, which mod(26) is not what you think !!! */
    t = (26 + t3 - t2) % 26;
    rfn = (uint16_t)((51 * t) + t3 + (51 * 26 * t1));

    item = proto_tree_add_uint(tree, hf_gsm_a_rr_tbf_starting_time, tvb, bit_offset >> 3, ((curr_bit_offset - bit_offset) >> 3) + 1, rfn);
    proto_item_set_generated(item);
    return curr_bit_offset - bit_offset;
}

static int
de_rr_ia_rest_oct_egprs_packet_uplink_assignment(tvbuff_t *tvb, proto_tree *tree, int bit_offset, unsigned bit_len)
{
    proto_tree *subtree;
    proto_item *item;
    unsigned    curr_bit_offset;

    curr_bit_offset = bit_offset;

    subtree = proto_tree_add_subtree(tree, tvb, curr_bit_offset>>3, -1, ett_gsm_rr_rest_octets_elem[DE_RR_REST_OCTETS_EGPRS_PACKET_UPLINK_ASSIGNMENT], &item,
        gsm_rr_rest_octets_elem_strings[DE_RR_REST_OCTETS_EGPRS_PACKET_UPLINK_ASSIGNMENT]);
    proto_tree_add_bits_item(subtree, hf_gsm_a_rr_extended_ra, tvb, curr_bit_offset, 5, ENC_BIG_ENDIAN);
    curr_bit_offset += 5;
    while (gsm_rr_csn_flag(tvb, subtree, curr_bit_offset++, hf_gsm_a_rr_access_tech_req))
    {
        proto_tree_add_bits_item(subtree, hf_gsm_a_rr_access_tech_type, tvb, curr_bit_offset, 4, ENC_BIG_ENDIAN);
        curr_bit_offset += 4;
    }

    if (gsm_rr_csn_flag(tvb, subtree, curr_bit_offset++, hf_gsm_a_rr_tfi_multiblock))
    {
        proto_tree_add_bits_item(subtree, hf_gsm_a_rr_tfi_assignment, tvb, curr_bit_offset, 5, ENC_BIG_ENDIAN);
        curr_bit_offset += 5;
        proto_tree_add_bits_item(subtree, hf_gsm_a_rr_polling, tvb, curr_bit_offset, 1, ENC_BIG_ENDIAN);
        curr_bit_offset += 1;
        if (gsm_rr_csn_flag(tvb, subtree, curr_bit_offset++, hf_gsm_a_rr_tfi_allocation_type))
        {
           int8_t bitmap_len = tvb_get_bits8(tvb, curr_bit_offset, 5);
           int32_t bitmap;
           proto_tree_add_uint(tree, hf_gsm_a_rr_bitmap_length, tvb, curr_bit_offset>>3, 1+((curr_bit_offset+5)>>3) - (curr_bit_offset>>3), bitmap_len);
           curr_bit_offset += 5;
           bitmap = tvb_get_bits32(tvb, curr_bit_offset, bitmap_len, ENC_BIG_ENDIAN);
           proto_tree_add_uint(tree, hf_gsm_a_rr_bitmap, tvb, curr_bit_offset>>3, 1+((curr_bit_offset+bitmap_len)>>3) - (curr_bit_offset>>3), bitmap);
           curr_bit_offset += bitmap_len;
           if (gsm_rr_csn_flag(tvb, subtree, curr_bit_offset++, hf_gsm_a_rr_p0_present))
           {
               proto_tree_add_bits_item(subtree, hf_gsm_a_rr_p0, tvb, curr_bit_offset, 4, ENC_BIG_ENDIAN);
               curr_bit_offset += 4;
               proto_tree_add_bits_item(subtree, hf_gsm_a_rr_pr_mode, tvb, curr_bit_offset, 1, ENC_BIG_ENDIAN);
               curr_bit_offset += 1;
           }
        }
        else
        {
           proto_tree_add_bits_item(subtree, hf_gsm_a_rr_usf, tvb, curr_bit_offset, 3, ENC_BIG_ENDIAN);
           curr_bit_offset += 3;
           proto_tree_add_bits_item(subtree, hf_gsm_a_rr_usf_granularity, tvb, curr_bit_offset, 1, ENC_BIG_ENDIAN);
           curr_bit_offset += 1;
           if (gsm_rr_csn_flag(tvb, subtree, curr_bit_offset++, hf_gsm_a_rr_p0_present))
           {
               proto_tree_add_bits_item(subtree, hf_gsm_a_rr_p0, tvb, curr_bit_offset, 4, ENC_BIG_ENDIAN);
               curr_bit_offset += 4;
               proto_tree_add_bits_item(subtree, hf_gsm_a_rr_pr_mode, tvb, curr_bit_offset, 1, ENC_BIG_ENDIAN);
               curr_bit_offset += 1;
           }
        }

        proto_tree_add_bits_item(subtree, hf_gsm_a_rr_egprs_mcs, tvb, curr_bit_offset, 4, ENC_BIG_ENDIAN);
        curr_bit_offset += 4;
        proto_tree_add_bits_item(subtree, hf_gsm_a_rr_tlli_block_channel_coding, tvb, curr_bit_offset, 1, ENC_BIG_ENDIAN);
        curr_bit_offset += 1;
        if (gsm_rr_csn_flag(tvb, subtree, curr_bit_offset++, hf_gsm_a_rr_bep_period2_present))
        {
            proto_tree_add_bits_item(subtree, hf_gsm_a_rr_bep_period2, tvb, curr_bit_offset, 4, ENC_BIG_ENDIAN);
            curr_bit_offset += 4;
        }
        proto_tree_add_bits_item(subtree, hf_gsm_a_rr_resegment, tvb, curr_bit_offset, 1, ENC_BIG_ENDIAN);
        curr_bit_offset += 1;
        proto_tree_add_bits_item(subtree, hf_gsm_a_rr_egprs_window_size, tvb, curr_bit_offset, 5, ENC_BIG_ENDIAN);
        curr_bit_offset += 5;
        if (gsm_rr_csn_flag(tvb, subtree, curr_bit_offset++, hf_gsm_a_rr_alpha_present))
        {
            proto_tree_add_bits_item(subtree, hf_gsm_a_rr_alpha, tvb, curr_bit_offset, 4, ENC_BIG_ENDIAN);
            curr_bit_offset += 4;
        }
        proto_tree_add_bits_item(subtree, hf_gsm_a_rr_gamma, tvb, curr_bit_offset, 5, ENC_BIG_ENDIAN);
        curr_bit_offset += 5;
        if (gsm_rr_csn_flag(tvb, subtree, curr_bit_offset++, hf_gsm_a_rr_timing_adv_index_present))
        {
            proto_tree_add_bits_item(subtree, hf_gsm_a_rr_timing_adv_index, tvb, curr_bit_offset, 4, ENC_BIG_ENDIAN);
            curr_bit_offset += 4;
        }
        if (gsm_rr_csn_flag(tvb, subtree, curr_bit_offset++, hf_gsm_a_rr_tbf_starting_time_present))
        {
            curr_bit_offset += de_tbf_starting_time(tvb, subtree, curr_bit_offset);
        }
        /* Null breakpoint */
        if (curr_bit_offset < bit_len)
             {
            if (gsm_rr_csn_HL_flag(tvb, subtree, 0, curr_bit_offset++, hf_gsm_a_rr_additions_in_rel_7))
                 {
                if (gsm_rr_csn_flag(tvb, subtree, curr_bit_offset++, hf_gsm_a_rr_ul_xtti_tbf_assignment))
                     {
                    if (gsm_rr_csn_flag(tvb, subtree, curr_bit_offset++, hf_gsm_a_rr_fanr_act_state))
                         {
                        if (gsm_rr_csn_flag(tvb, subtree, curr_bit_offset++, hf_gsm_a_rr_encoding_selection))
                             {
                            proto_tree_add_bits_item(subtree, hf_gsm_a_rr_reported_timeslots, tvb, curr_bit_offset, 8, ENC_BIG_ENDIAN);
                            curr_bit_offset += 8;
                            proto_tree_add_bits_item(subtree, hf_gsm_a_rr_tsh, tvb, curr_bit_offset, 2, ENC_BIG_ENDIAN);
                            curr_bit_offset += 2;
                            }
                        }
                    }
                else
                     {
                    proto_tree_add_bits_item(subtree, hf_gsm_a_rr_rtti_usf_mode, tvb, curr_bit_offset, 1, ENC_BIG_ENDIAN);
                    curr_bit_offset += 1;
                    proto_tree_add_bits_item(subtree, hf_gsm_a_rr_pdch_pair_indic, tvb, curr_bit_offset, 3, ENC_BIG_ENDIAN);
                    curr_bit_offset += 3;

                    if (hf_gsm_a_rr_rtti_usf_mode > 0)
                         {
                        proto_tree_add_bits_item(subtree, hf_gsm_a_rr_additional_usf, tvb, curr_bit_offset, 3, ENC_BIG_ENDIAN);
                        curr_bit_offset += 3;
                        }
                    if (gsm_rr_csn_flag(tvb, subtree, curr_bit_offset++, hf_gsm_a_rr_nof_pdch_pairs))
                         {
                        proto_tree_add_bits_item(subtree, hf_gsm_a_rr_usf_2, tvb, curr_bit_offset, 3, ENC_BIG_ENDIAN);
                        curr_bit_offset += 3;

                        if (hf_gsm_a_rr_rtti_usf_mode > 0)
                             {
                            proto_tree_add_bits_item(subtree, hf_gsm_a_rr_additional_usf_2, tvb, curr_bit_offset, 3, ENC_BIG_ENDIAN);
                            curr_bit_offset += 3;
                            }
                        }
                    if (gsm_rr_csn_flag(tvb, subtree, curr_bit_offset++, hf_gsm_a_rr_encoding_selection))
                         {
                        proto_tree_add_bits_item(subtree, hf_gsm_a_rr_reported_timeslots, tvb, curr_bit_offset, 8, ENC_BIG_ENDIAN);
                        curr_bit_offset += 8;
                        proto_tree_add_bits_item(subtree, hf_gsm_a_rr_tsh, tvb, curr_bit_offset, 2, ENC_BIG_ENDIAN);
                        curr_bit_offset += 2;
                        }
                    }
                }
            }
    }
    else  /*  Multi Block Allocation */
    {
        if (gsm_rr_csn_flag(tvb, subtree, curr_bit_offset++, hf_gsm_a_rr_alpha_present))
        {
            proto_tree_add_bits_item(subtree, hf_gsm_a_rr_alpha, tvb, curr_bit_offset, 4, ENC_BIG_ENDIAN);
            curr_bit_offset += 4;
        }
        proto_tree_add_bits_item(subtree, hf_gsm_a_rr_gamma, tvb, curr_bit_offset, 5, ENC_BIG_ENDIAN);
        curr_bit_offset += 5;
        curr_bit_offset += de_tbf_starting_time(tvb, subtree, curr_bit_offset);
        proto_tree_add_bits_item(subtree, hf_gsm_a_rr_num_of_radio_block_allocated, tvb, curr_bit_offset, 2, ENC_BIG_ENDIAN);
        curr_bit_offset += 2;
        if (gsm_rr_csn_flag(tvb, subtree, curr_bit_offset++, hf_gsm_a_rr_p0_present))
        {
            proto_tree_add_bits_item(subtree, hf_gsm_a_rr_p0, tvb, curr_bit_offset, 4, ENC_BIG_ENDIAN);
            curr_bit_offset += 4;
            proto_tree_add_bits_item(subtree, hf_gsm_a_rr_bts_power_control_mode, tvb, curr_bit_offset++, 1, ENC_NA);
            proto_tree_add_bits_item(subtree, hf_gsm_a_rr_pr_mode, tvb, curr_bit_offset, 1, ENC_BIG_ENDIAN);
            curr_bit_offset += 1;
        }

        /* Null breakpoint */
        if (curr_bit_offset < bit_len)
        {
           if (gsm_rr_csn_HL_flag(tvb,subtree, 0,curr_bit_offset++, hf_gsm_a_rr_additions_in_rel_7))
           {
               if (gsm_rr_csn_flag(tvb, subtree, curr_bit_offset++, hf_gsm_a_rr_pfi_present))
               {
                   proto_tree_add_bits_item(subtree, hf_gsm_a_rr_pfi, tvb, curr_bit_offset, 7, ENC_BIG_ENDIAN);
                   curr_bit_offset += 7;
               }
           }
        }
    }
    proto_item_set_len(item,((curr_bit_offset>>3) - (bit_offset>>3) + 1));

    return (curr_bit_offset - bit_offset);
}


static int
de_rr_ia_rest_oct_tmgi(tvbuff_t *tvb, proto_tree *tree, int bit_offset)
{
    proto_tree *subtree;
    proto_item *item;
    int         curr_bit_offset;
    uint16_t    value16;
    char        mcc[4];
    char        mnc[4];

    curr_bit_offset = bit_offset;

    subtree = proto_tree_add_subtree(tree, tvb, curr_bit_offset>>3, -1, ett_gsm_rr_rest_octets_elem[DE_RR_REST_OCTETS_TMGI], &item,
                                                        gsm_rr_rest_octets_elem_strings[DE_RR_REST_OCTETS_TMGI]);

    if (0 == gsm_rr_csn_flag(tvb, subtree, curr_bit_offset++, hf_gsm_a_rr_mcc_mnc_parameters))   /*  without MCC and MNC parameters */
    {
        proto_tree_add_bits_item(subtree, hf_gsm_a_rr_mbms_service_id, tvb, curr_bit_offset, 24, ENC_BIG_ENDIAN);
        curr_bit_offset += 24;
    }
    else   /* with MCC and MNC parameters */
    {
        proto_tree_add_bits_item(subtree, hf_gsm_a_rr_mbms_service_id, tvb, curr_bit_offset, 24, ENC_BIG_ENDIAN);
        curr_bit_offset += 24;

        value16 = tvb_get_bits16(tvb,curr_bit_offset,12,ENC_BIG_ENDIAN);
        mcc[0] = '0' + ((value16>>8)&0xf);
        mcc[1] = '0' + ((value16>>4)&0xf);
        mcc[2] = '0' + ((value16   )&0xf);
        mcc[3] = '\0';
        proto_tree_add_string(tree, hf_gsm_a_rr_mobile_country_code, tvb, curr_bit_offset>>3, 12, mcc);
        curr_bit_offset += 12;

        value16 = tvb_get_bits16(tvb,curr_bit_offset,12,ENC_BIG_ENDIAN);
        mnc[0] = '0' + ((value16>>8)&0xf);
        mnc[1] = '0' + ((value16>>4)&0xf);
        mnc[2] = '0' + ((value16   )&0xf);
        mnc[3] = '\0';
        proto_tree_add_string(tree, hf_gsm_a_rr_mobile_network_code, tvb, curr_bit_offset>>3, 12, mnc);
        curr_bit_offset += 12;
    }
    proto_item_set_len(item,((curr_bit_offset>>3) - (bit_offset>>3) + 1));

    return (curr_bit_offset - bit_offset);
}



static int
de_rr_ia_rest_oct_packet_timing_advance(tvbuff_t *tvb, proto_tree *tree, int bit_offset)
{
    proto_tree *subtree;
    proto_item *item;
    int         curr_bit_offset;


    curr_bit_offset = bit_offset;

    subtree = proto_tree_add_subtree(tree, tvb, curr_bit_offset>>3, -1, ett_gsm_rr_rest_octets_elem[DE_RR_REST_OCTETS_PACKET_TIMING_ADVANCE], &item,
                                        gsm_rr_rest_octets_elem_strings[DE_RR_REST_OCTETS_PACKET_TIMING_ADVANCE]);

    if (gsm_rr_csn_flag(tvb, subtree, curr_bit_offset++, hf_gsm_a_rr_timing_adv_present))
    {
        proto_tree_add_bits_item(subtree, hf_gsm_a_rr_timing_adv, tvb, curr_bit_offset, 6, ENC_BIG_ENDIAN);
        curr_bit_offset += 6;
    }

    if (gsm_rr_csn_flag(tvb, subtree, curr_bit_offset++, hf_gsm_a_rr_timing_advance_index_timeslot))
    {
        proto_tree_add_bits_item(subtree, hf_gsm_a_rr_timing_adv_index, tvb, curr_bit_offset, 4, ENC_BIG_ENDIAN);
        curr_bit_offset += 4;
        proto_tree_add_bits_item(subtree, hf_gsm_a_rr_timing_adv_timeslot_num, tvb, curr_bit_offset, 3, ENC_BIG_ENDIAN);
        curr_bit_offset += 3;
    }
    proto_item_set_len(item,((curr_bit_offset>>3) - (bit_offset>>3) + 1));

    return (curr_bit_offset - bit_offset);
}



static int
de_rr_ia_rest_oct_multiple_blocks_packet_downlink_assignment(tvbuff_t *tvb, proto_tree *tree, int bit_offset)
{
    proto_tree *subtree;
    proto_item *item;
    int         curr_bit_offset;
    uint8_t     value;

    curr_bit_offset = bit_offset;

    subtree = proto_tree_add_subtree(tree, tvb, curr_bit_offset>>3, -1, ett_gsm_rr_rest_octets_elem[DE_RR_REST_OCTETS_MULTIPLE_BLOCKS_PACKET_DOWNLINK_ASSIGNMENT], &item,
                                        gsm_rr_rest_octets_elem_strings[DE_RR_REST_OCTETS_MULTIPLE_BLOCKS_PACKET_DOWNLINK_ASSIGNMENT]);

    curr_bit_offset += de_tbf_starting_time(tvb, subtree, curr_bit_offset);
    proto_tree_add_bits_item(subtree, hf_gsm_a_rr_num_of_radio_block_allocated, tvb, curr_bit_offset, 4, ENC_BIG_ENDIAN);
    curr_bit_offset += 4;

    if (gsm_rr_csn_flag(tvb, subtree, curr_bit_offset++, hf_gsm_a_rr_packet_downlink_assignment))
    {
        if (0 == gsm_rr_csn_flag(tvb, subtree, curr_bit_offset++, hf_gsm_a_rr_mbms_assignment))
        {/* MBMS Assignment (Distribution) */
            curr_bit_offset += de_rr_ia_rest_oct_tmgi(tvb, tree, curr_bit_offset);
        }
        else   /* MBMS Assignment (Non-distribution) */
        {
            proto_tree_add_bits_item(subtree, hf_gsm_a_rr_tlli, tvb, curr_bit_offset, 32, ENC_BIG_ENDIAN);
            curr_bit_offset += 32;
            if (gsm_rr_csn_flag(tvb, subtree, curr_bit_offset++, hf_gsm_a_rr_ms_parameters))
            {
                value = tvb_get_bits8(tvb,curr_bit_offset,2);
                proto_tree_add_uint(tree, hf_gsm_a_rr_len_indicator_ms_id, tvb, curr_bit_offset>>3, 2, value);
                curr_bit_offset += 2;

                proto_tree_add_bits_item(subtree, hf_gsm_a_rr_ms_id, tvb, curr_bit_offset, value+1, ENC_BIG_ENDIAN);
                curr_bit_offset += value+1;
                curr_bit_offset += de_rr_ia_rest_oct_packet_timing_advance(tvb, tree, curr_bit_offset);
                if (gsm_rr_csn_flag(tvb, subtree, curr_bit_offset++, hf_gsm_a_rr_alpha_present))
                {
                    proto_tree_add_bits_item(subtree, hf_gsm_a_rr_alpha, tvb, curr_bit_offset, 4, ENC_BIG_ENDIAN);
                    curr_bit_offset += 4;
                    if (gsm_rr_csn_flag(tvb, subtree, curr_bit_offset++, hf_gsm_a_rr_gamma_present))
                    {
                        proto_tree_add_bits_item(subtree, hf_gsm_a_rr_gamma, tvb, curr_bit_offset, 5, ENC_BIG_ENDIAN);
                        curr_bit_offset += 5;
                    }
                }
            }
        }
    }
    proto_item_set_len(item,((curr_bit_offset>>3) - (bit_offset>>3) + 1));

    return (curr_bit_offset - bit_offset);
}




static int
de_rr_ia_rest_oct_packet_uplink_assignment(tvbuff_t *tvb, proto_tree *tree, int bit_offset, unsigned bit_len)
{
    proto_tree *subtree;
    proto_item *item;
    unsigned    curr_bit_offset;

    curr_bit_offset = bit_offset;

    subtree = proto_tree_add_subtree(tree, tvb, curr_bit_offset>>3, -1, ett_gsm_rr_rest_octets_elem[DE_RR_REST_OCTETS_PACKET_UPLINK_ASSIGNMENT], &item,
                        gsm_rr_rest_octets_elem_strings[DE_RR_REST_OCTETS_PACKET_UPLINK_ASSIGNMENT]);

    if (gsm_rr_csn_flag(tvb, subtree, curr_bit_offset++, hf_gsm_a_rr_packet_uplink_assignment))
    {
        proto_tree_add_bits_item(subtree, hf_gsm_a_rr_tfi_assignment, tvb, curr_bit_offset, 5, ENC_BIG_ENDIAN);
        curr_bit_offset += 5;
        proto_tree_add_bits_item(subtree, hf_gsm_a_rr_polling, tvb, curr_bit_offset, 1, ENC_BIG_ENDIAN);
        curr_bit_offset += 1;
        if (gsm_rr_csn_flag(tvb, subtree, curr_bit_offset++, hf_gsm_a_rr_allocation_type))
        {
           int8_t bitmap_len = tvb_get_bits8(tvb, curr_bit_offset, 5);
           int32_t bitmap;
           proto_tree_add_uint(tree, hf_gsm_a_rr_bitmap_length, tvb, curr_bit_offset>>3, 1+((curr_bit_offset+5)>>3) - (curr_bit_offset>>3), bitmap_len);
           curr_bit_offset += 5;
           bitmap = tvb_get_bits32(tvb, curr_bit_offset, bitmap_len, ENC_BIG_ENDIAN);
           proto_tree_add_uint(tree, hf_gsm_a_rr_bitmap, tvb, curr_bit_offset>>3, 1+((curr_bit_offset+bitmap_len)>>3) - (curr_bit_offset>>3), bitmap);
           curr_bit_offset += bitmap_len;
           if (gsm_rr_csn_flag(tvb, subtree, curr_bit_offset++, hf_gsm_a_rr_p0_present))
           {
               proto_tree_add_bits_item(subtree, hf_gsm_a_rr_p0, tvb, curr_bit_offset, 4, ENC_BIG_ENDIAN);
               curr_bit_offset += 4;
               proto_tree_add_bits_item(subtree, hf_gsm_a_rr_pr_mode, tvb, curr_bit_offset, 1, ENC_BIG_ENDIAN);
               curr_bit_offset += 1;
           }
        }
        else
        {
           proto_tree_add_bits_item(subtree, hf_gsm_a_rr_usf, tvb, curr_bit_offset, 3, ENC_BIG_ENDIAN);
           curr_bit_offset += 3;
           proto_tree_add_bits_item(subtree, hf_gsm_a_rr_usf_granularity, tvb, curr_bit_offset, 1, ENC_BIG_ENDIAN);
           curr_bit_offset += 1;
           if (gsm_rr_csn_flag(tvb, subtree, curr_bit_offset++, hf_gsm_a_rr_p0_present))
           {
               proto_tree_add_bits_item(subtree, hf_gsm_a_rr_p0, tvb, curr_bit_offset, 4, ENC_BIG_ENDIAN);
               curr_bit_offset += 4;
               proto_tree_add_bits_item(subtree, hf_gsm_a_rr_pr_mode, tvb, curr_bit_offset, 1, ENC_BIG_ENDIAN);
               curr_bit_offset += 1;
           }
        }
        proto_tree_add_bits_item(subtree, hf_gsm_a_rr_gprs_cs, tvb, curr_bit_offset, 2, ENC_BIG_ENDIAN);
        curr_bit_offset += 2;
        proto_tree_add_bits_item(subtree, hf_gsm_a_rr_tlli_block_channel_coding, tvb, curr_bit_offset, 1, ENC_BIG_ENDIAN);
        curr_bit_offset += 1;
        if (gsm_rr_csn_flag(tvb, subtree, curr_bit_offset++, hf_gsm_a_rr_alpha_present))
        {
            proto_tree_add_bits_item(subtree, hf_gsm_a_rr_alpha, tvb, curr_bit_offset, 4, ENC_BIG_ENDIAN);
            curr_bit_offset += 4;
        }
        proto_tree_add_bits_item(subtree, hf_gsm_a_rr_gamma, tvb, curr_bit_offset, 5, ENC_BIG_ENDIAN);
        curr_bit_offset += 5;
        if (gsm_rr_csn_flag(tvb, subtree, curr_bit_offset++, hf_gsm_a_rr_timing_advance_index))
        {
            proto_tree_add_bits_item(subtree, hf_gsm_a_rr_timing_adv_index, tvb, curr_bit_offset, 4, ENC_BIG_ENDIAN);
            curr_bit_offset += 4;
        }
        if (gsm_rr_csn_flag(tvb, subtree, curr_bit_offset++, hf_gsm_a_rr_tbf_starting_time_present))
        {
           curr_bit_offset += de_tbf_starting_time(tvb, subtree, curr_bit_offset);
        }
    }
    else  /* Single Block Allocation */
    {
       if (gsm_rr_csn_flag(tvb, subtree, curr_bit_offset++, hf_gsm_a_rr_alpha_present))
        {
            proto_tree_add_bits_item(subtree, hf_gsm_a_rr_alpha, tvb, curr_bit_offset, 4, ENC_BIG_ENDIAN);
            curr_bit_offset += 4;
        }
        proto_tree_add_bits_item(subtree, hf_gsm_a_rr_gamma, tvb, curr_bit_offset, 5, ENC_BIG_ENDIAN);
        curr_bit_offset += 5;
        /* fixed bits '01' */
        proto_tree_add_bits_item(subtree, hf_gsm_a_rr_early_r97_version_reserved_bit, tvb, curr_bit_offset++, 1, ENC_NA);
        proto_tree_add_bits_item(subtree, hf_gsm_a_rr_later_r97_version_reserved_bit, tvb, curr_bit_offset++, 1, ENC_NA);
        curr_bit_offset += de_tbf_starting_time(tvb, subtree, curr_bit_offset);
        if (gsm_rr_csn_HL_flag(tvb,subtree, 0,curr_bit_offset++, hf_gsm_a_rr_p0_present))
        {
            proto_tree_add_bits_item(subtree, hf_gsm_a_rr_p0, tvb, curr_bit_offset, 4, ENC_BIG_ENDIAN);
            curr_bit_offset += 4;
            /* The value '1' was allocated in an earlier version of the protocol and shall not be used */
            proto_tree_add_bits_item(subtree, hf_gsm_a_rr_earlier_version_reserved_bit, tvb, curr_bit_offset++, 1, ENC_NA);
            proto_tree_add_bits_item(subtree, hf_gsm_a_rr_pr_mode, tvb, curr_bit_offset, 1, ENC_BIG_ENDIAN);
            curr_bit_offset += 1;
        }
    }

    /* Null breakpoint */
    if (curr_bit_offset < bit_len)
    {
       if (gsm_rr_csn_HL_flag(tvb,subtree, 0,curr_bit_offset++, hf_gsm_a_rr_additions_in_r99))
       {
           if (gsm_rr_csn_flag(tvb, subtree, curr_bit_offset++, hf_gsm_a_rr_extended_ra_present))
           {
               proto_tree_add_bits_item(subtree, hf_gsm_a_rr_extended_ra, tvb, curr_bit_offset, 5, ENC_BIG_ENDIAN);
               curr_bit_offset += 5;
           }
       }
    }

    /* Null breakpoint */
    if (curr_bit_offset < bit_len)
    {
       if (gsm_rr_csn_HL_flag(tvb,subtree, 0,curr_bit_offset++, hf_gsm_a_rr_additions_in_rel_6))
       {
           if (gsm_rr_csn_flag(tvb, subtree, curr_bit_offset++, hf_gsm_a_rr_pfi_present))
           {
               proto_tree_add_bits_item(subtree, hf_gsm_a_rr_pfi, tvb, curr_bit_offset, 7, ENC_BIG_ENDIAN);
               curr_bit_offset += 7;
           }
       }
    }
    proto_item_set_len(item,((curr_bit_offset>>3) - (bit_offset>>3) + 1));

    return (curr_bit_offset - bit_offset);
}


static int
de_rr_ia_rest_oct_packet_downlink_assignment(tvbuff_t *tvb, proto_tree *tree, unsigned bit_offset, unsigned bit_len)
{
    proto_tree *subtree;
    proto_item *item;
    unsigned    curr_bit_offset;

    curr_bit_offset = bit_offset;

    subtree = proto_tree_add_subtree(tree, tvb, curr_bit_offset>>3, -1, ett_gsm_rr_rest_octets_elem[DE_RR_REST_OCTETS_PACKET_DOWNLINK_ASSIGNMENT], &item,
                                        gsm_rr_rest_octets_elem_strings[DE_RR_REST_OCTETS_PACKET_DOWNLINK_ASSIGNMENT]);

    proto_tree_add_bits_item(subtree, hf_gsm_a_rr_tlli, tvb, curr_bit_offset, 32, ENC_BIG_ENDIAN);
    curr_bit_offset += 32;

    if (gsm_rr_csn_flag(tvb, subtree, curr_bit_offset++, hf_gsm_a_rr_tfi_assignment_present))
    {
        proto_tree_add_bits_item(subtree, hf_gsm_a_rr_tfi_assignment, tvb, curr_bit_offset, 5, ENC_BIG_ENDIAN);
        curr_bit_offset += 5;
        proto_tree_add_bits_item(subtree, hf_gsm_a_rr_rlc_mode, tvb, curr_bit_offset, 1, ENC_BIG_ENDIAN);
        curr_bit_offset += 1;
        if (gsm_rr_csn_flag(tvb, subtree, curr_bit_offset++, hf_gsm_a_rr_alpha_present))
        {
            proto_tree_add_bits_item(subtree, hf_gsm_a_rr_alpha, tvb, curr_bit_offset, 4, ENC_BIG_ENDIAN);
            curr_bit_offset += 4;
        }
        proto_tree_add_bits_item(subtree, hf_gsm_a_rr_gamma, tvb, curr_bit_offset, 5, ENC_BIG_ENDIAN);
        curr_bit_offset += 5;
        proto_tree_add_bits_item(subtree, hf_gsm_a_rr_polling, tvb, curr_bit_offset, 1, ENC_BIG_ENDIAN);
        curr_bit_offset += 1;
        proto_tree_add_bits_item(subtree, hf_gsm_a_rr_ta_valid, tvb, curr_bit_offset, 1, ENC_BIG_ENDIAN);
        curr_bit_offset += 1;
    }
    if (gsm_rr_csn_flag(tvb, subtree, curr_bit_offset++, hf_gsm_a_rr_timing_advance_index))
    {
        proto_tree_add_bits_item(subtree, hf_gsm_a_rr_timing_adv_index, tvb, curr_bit_offset, 4, ENC_BIG_ENDIAN);
        curr_bit_offset += 4;
    }
    if (gsm_rr_csn_flag(tvb, subtree, curr_bit_offset++, hf_gsm_a_rr_tbf_starting_time_present))
    {
       curr_bit_offset += de_tbf_starting_time(tvb, subtree, curr_bit_offset);
    }
    if (gsm_rr_csn_flag(tvb, subtree, curr_bit_offset++, hf_gsm_a_rr_p0_present))
    {
        proto_tree_add_bits_item(subtree, hf_gsm_a_rr_p0, tvb, curr_bit_offset, 4, ENC_BIG_ENDIAN);
        curr_bit_offset += 4;
        proto_tree_add_bits_item(subtree, hf_gsm_a_rr_pr_mode_present, tvb, curr_bit_offset++, 1, ENC_NA);
        proto_tree_add_bits_item(subtree, hf_gsm_a_rr_pr_mode, tvb, curr_bit_offset, 1, ENC_BIG_ENDIAN);
        curr_bit_offset += 1;
    }

    /* Null breakpoint */
    if (curr_bit_offset < bit_len)
    {
       if (gsm_rr_csn_HL_flag(tvb,subtree, 0,curr_bit_offset++, hf_gsm_a_rr_additions_in_r99))
       {
           proto_tree_add_bits_item(subtree, hf_gsm_a_rr_egprs_window_size, tvb, curr_bit_offset, 5, ENC_BIG_ENDIAN);
           curr_bit_offset += 5;
           proto_tree_add_bits_item(subtree, hf_gsm_a_rr_link_quality_meas_mode, tvb, curr_bit_offset, 2, ENC_BIG_ENDIAN);
           curr_bit_offset += 2;
           if (gsm_rr_csn_flag(tvb, subtree, curr_bit_offset++, hf_gsm_a_rr_bep_period2_present))
           {
               proto_tree_add_bits_item(subtree, hf_gsm_a_rr_bep_period2, tvb, curr_bit_offset, 4, ENC_BIG_ENDIAN);
               curr_bit_offset += 4;
           }
       }
    }

    /* Null breakpoint */
    if (curr_bit_offset < bit_len)
    {
       if (gsm_rr_csn_HL_flag(tvb,subtree, 0, curr_bit_offset++, hf_gsm_a_rr_additions_in_rel_6))
       {
           if (gsm_rr_csn_flag(tvb, subtree, curr_bit_offset++, hf_gsm_a_rr_pfi_present))
           {
               proto_tree_add_bits_item(subtree, hf_gsm_a_rr_pfi, tvb, curr_bit_offset, 7, ENC_BIG_ENDIAN);
               curr_bit_offset += 7;
           }
       }
    }

    /* Null breakpoint */
    if (curr_bit_offset < bit_len)
    {
        if (gsm_rr_csn_HL_flag(tvb, subtree, 0, curr_bit_offset++, hf_gsm_a_rr_additions_in_rel_7))
        {

            if (gsm_rr_csn_flag(tvb, subtree, curr_bit_offset++, hf_gsm_a_rr_npm_transfer_time_present))
            {
                proto_tree_add_bits_item(subtree, hf_gsm_a_rr_npm_transfer_time, tvb, curr_bit_offset, 5, ENC_BIG_ENDIAN);
                curr_bit_offset += 5;
            }

            if (gsm_rr_csn_flag(tvb, subtree, curr_bit_offset++, hf_gsm_a_rr_dl_xtti_tbf_assignment))
            {
                if (gsm_rr_csn_flag(tvb, subtree, curr_bit_offset++, hf_gsm_a_rr_fanr_act_state))
                {
                    proto_tree_add_bits_item(subtree, hf_gsm_a_rr_event_based_fanr, tvb, curr_bit_offset, 1, ENC_BIG_ENDIAN);
                    curr_bit_offset += 1;
                }
            }
            else
            {
                proto_tree_add_bits_item(subtree, hf_gsm_a_rr_event_based_fanr, tvb, curr_bit_offset, 1, ENC_BIG_ENDIAN);
                curr_bit_offset += 1;
                proto_tree_add_bits_item(subtree, hf_gsm_a_rr_pdch_pair_indic, tvb, curr_bit_offset, 3, ENC_BIG_ENDIAN);
                curr_bit_offset += 3;
            }

            proto_tree_add_bits_item(subtree, hf_gsm_a_rr_dl_egprs_level, tvb, curr_bit_offset, 2, ENC_BIG_ENDIAN);
            curr_bit_offset += 2;
        }
    }

    proto_item_set_len(item,((curr_bit_offset>>3) - (bit_offset>>3) + 1));

    return (curr_bit_offset - bit_offset);
}

static int
de_rr_ia_rest_oct_second_part_packet_assignment(tvbuff_t *tvb, proto_tree *tree, unsigned bit_offset, unsigned bit_len)
{
    proto_tree *subtree;
    proto_item *item;
    unsigned    curr_bit_offset;

    curr_bit_offset = bit_offset;

    subtree = proto_tree_add_subtree(tree, tvb, curr_bit_offset>>3, -1, ett_gsm_rr_rest_octets_elem[DE_RR_REST_OCTETS_SECOND_PART_PACKET_ASSIGNMENT], &item,
                                    gsm_rr_rest_octets_elem_strings[DE_RR_REST_OCTETS_SECOND_PART_PACKET_ASSIGNMENT]);

    /* Null breakpoint */
    if (curr_bit_offset < bit_len)
    {
       if (gsm_rr_csn_HL_flag(tvb,subtree, 0,curr_bit_offset++, hf_gsm_a_rr_additions_in_r99))
       {
           if (gsm_rr_csn_flag(tvb, subtree, curr_bit_offset++, hf_gsm_a_rr_extended_ra_present))
           {
               proto_tree_add_bits_item(subtree, hf_gsm_a_rr_extended_ra, tvb, curr_bit_offset, 5, ENC_BIG_ENDIAN);
               curr_bit_offset += 5;
           }
       }
    }
    proto_item_set_len(item,((curr_bit_offset>>3) - (bit_offset>>3) + 1));

    return (curr_bit_offset - bit_offset);
}


/*
 * [3] 10.5.2.16 IA Rest Octets
 */

static const value_string gsm_a_rr_implicit_reject_cs_vals[] = {
    {0, "An implicit reject is not indicated for the CS domain"},
    {1, "An implicit reject is indicated for the CS domain"},
    {0, NULL}
};

static const value_string gsm_a_rr_implicit_reject_ps_vals[] = {
    {0, "An implicit reject is not indicated for the PS domain"},
    {1, "An implicit reject is indicated for the PS domain"},
    {0, NULL}
};

static uint16_t
de_rr_ia_rest_oct(tvbuff_t *tvb, proto_tree *subtree, packet_info *pinfo _U_, uint32_t offset, unsigned len _U_, char *add_string _U_, int string_len _U_)
{
    proto_item *item;
    uint32_t    curr_offset;
    int         bit_offset;
    int         length;
    uint64_t    ma_length;
    uint8_t     tvb_len = tvb_reported_length(tvb);
    uint16_t    bit_len = tvb_len << 3;

    curr_offset = offset;

    bit_offset = curr_offset << 3;
    if (0 == gsm_rr_csn_HL_flag(tvb, subtree, 0, bit_offset++, hf_gsm_a_rr_first_discriminator_bit))
    {
        if (0 == gsm_rr_csn_HL_flag(tvb, subtree, 0, bit_offset++, hf_gsm_a_rr_second_discriminator_bit))
        {
           /* LL */
           (void) gsm_rr_csn_HL_flag(tvb, subtree, 0,bit_offset++, hf_gsm_a_rr_a_compressed_inter_rat_handover_info);

           if (gsm_rr_csn_HL_flag(tvb, subtree, 0, bit_offset++, hf_gsm_a_rr_additions_in_rel_13))
            {
                proto_tree_add_bits_item(subtree, hf_gsm_a_rr_implicit_reject_ps, tvb, bit_offset++, 1, ENC_BIG_ENDIAN);
                proto_tree_add_bits_item(subtree, hf_gsm_a_rr_peo_bcch_change_mark, tvb, bit_offset, 2, ENC_BIG_ENDIAN);
                bit_offset += 2;
                proto_tree_add_bits_item(subtree, hf_gsm_a_rr_rcc, tvb, bit_offset, 3, ENC_BIG_ENDIAN);
                bit_offset += 3;
            }
        }
        else   /* LH */
        {
            if (0 == gsm_rr_csn_flag(tvb, subtree, bit_offset++, hf_gsm_a_rr_downlink_uplink_discriminator_bit))
            {
                if (0 == gsm_rr_csn_flag(tvb, subtree, bit_offset++, hf_gsm_a_rr_downlink_uplink))
                {
                    bit_offset += de_rr_ia_rest_oct_egprs_packet_uplink_assignment(tvb, subtree, bit_offset, bit_len);
                    if (bit_offset == bit_len) /* This IE may be the last one */
                        return tvb_len - offset;
                }
                else
                {
                    bit_offset += de_rr_ia_rest_oct_multiple_blocks_packet_downlink_assignment(tvb, subtree, bit_offset);
                    if (bit_offset == bit_len) /* This IE may be the last one */
                        return tvb_len - offset;
                }
            }
            else
            {
                proto_tree_add_item(subtree, hf_gsm_a_rr_ia_rest_oct_reserved, tvb, bit_offset>>3, 1, ENC_NA);
            }
            if (gsm_rr_csn_HL_flag(tvb, subtree, 0, bit_offset++, hf_gsm_a_rr_additions_in_rel_13))
            {
                proto_tree_add_bits_item(subtree, hf_gsm_a_rr_implicit_reject_ps, tvb, bit_offset++, 1, ENC_BIG_ENDIAN);
                proto_tree_add_bits_item(subtree, hf_gsm_a_rr_peo_bcch_change_mark, tvb, bit_offset, 2, ENC_BIG_ENDIAN);
                bit_offset += 2;
                proto_tree_add_bits_item(subtree, hf_gsm_a_rr_rcc, tvb, bit_offset, 3, ENC_BIG_ENDIAN);
                bit_offset += 3;
         }

        }
    }
    else
    {
        if (0 == gsm_rr_csn_HL_flag(tvb, subtree, 0, bit_offset++, hf_gsm_a_rr_second_discriminator_bit))
        {
           /* HL */
            proto_tree_add_bits_ret_val(subtree, hf_gsm_a_rr_ma_length, tvb, bit_offset, 6, &ma_length, ENC_BIG_ENDIAN);
            bit_offset += 6;
            /* Frequency Parameters, before time */
            if (ma_length>0)
            {
                /* two '0' bits */
                bit_offset += 2;
                proto_tree_add_bits_item(subtree, hf_gsm_a_rr_maio, tvb, bit_offset, 6, ENC_BIG_ENDIAN);
                bit_offset += 6;
                length = (int)ma_length;
                item = proto_tree_add_bytes_format(subtree, hf_gsm_a_rr_ma_bitmap, tvb, bit_offset>>3, (length>>3)-1, NULL, "MA Bitmap: ");
                length = (length-1)*8;
                while (length)
                {
                    proto_item_append_text(item,"%d",tvb_get_bits8(tvb,bit_offset,1));
                    bit_offset += 1;
                    length -= 1;
                }
            }
            (void) gsm_rr_csn_HL_flag(tvb, subtree, 0, bit_offset++, hf_gsm_a_rr_a_compressed_inter_rat_handover_info);

            if (gsm_rr_csn_HL_flag(tvb, subtree, 0, bit_offset++, hf_gsm_a_rr_additions_in_rel_13))
            {
                proto_tree_add_bits_item(subtree, hf_gsm_a_rr_implicit_reject_ps, tvb, bit_offset++, 1, ENC_BIG_ENDIAN);
                proto_tree_add_bits_item(subtree, hf_gsm_a_rr_peo_bcch_change_mark, tvb, bit_offset, 2, ENC_BIG_ENDIAN);
                bit_offset += 2;
                proto_tree_add_bits_item(subtree, hf_gsm_a_rr_rcc, tvb, bit_offset, 3, ENC_BIG_ENDIAN);
                bit_offset += 3;
            }
        }
        else   /* HH */
        {
            if (0 == gsm_rr_csn_flag(tvb, subtree, bit_offset++, hf_gsm_a_rr_second_packet_assignment_discriminator_bit))
            {
                if (0 == gsm_rr_csn_flag(tvb, subtree, bit_offset++, hf_gsm_a_rr_packet_discriminator_bit))
                {
                      /* 00  < Packet Uplink Assignment > */
                    bit_offset += de_rr_ia_rest_oct_packet_uplink_assignment(tvb, subtree, bit_offset, bit_len);
                    if (bit_offset == bit_len) /* This IE may be the last one */
                        return tvb_len - offset;
                }
                else  /*  01     < Packet Downlink Assignment >  */
                {
                    bit_offset += de_rr_ia_rest_oct_packet_downlink_assignment(tvb, subtree, bit_offset, bit_len);
                    if (bit_offset == bit_len) /* This IE may be the last one */
                        return tvb_len - offset;
                }
            }
            else  /*  1       < Second Part Packet Assignment >   */
            {
                bit_offset += de_rr_ia_rest_oct_second_part_packet_assignment(tvb, subtree, bit_offset, bit_len);
                if (bit_offset == bit_len) /* This IE may be the last one */
                    return tvb_len - offset;
            }
            if (gsm_rr_csn_HL_flag(tvb, subtree, 0, bit_offset++, hf_gsm_a_rr_additions_in_rel_10))
            {
                proto_tree_add_bits_item(subtree, hf_gsm_a_rr_implicit_reject_cs, tvb, bit_offset++, 1, ENC_BIG_ENDIAN);
                proto_tree_add_bits_item(subtree, hf_gsm_a_rr_implicit_reject_ps, tvb, bit_offset++, 1, ENC_BIG_ENDIAN);
            }

            if (gsm_rr_csn_HL_flag(tvb, subtree, 0, bit_offset++, hf_gsm_a_rr_additions_in_rel_13))
            {
                proto_tree_add_bits_item(subtree, hf_gsm_a_rr_peo_bcch_change_mark, tvb, bit_offset, 2, ENC_BIG_ENDIAN);
                bit_offset += 2;
                proto_tree_add_bits_item(subtree, hf_gsm_a_rr_rcc, tvb, bit_offset, 3, ENC_BIG_ENDIAN);
                bit_offset += 3;
            }
        }
    }
    gsm_rr_padding_bits(subtree, tvb, bit_offset, tvb_len, PADDING_BYTE);
    return tvb_len - offset;
}

/*
 * [3] 10.5.2.17 IAR Rest Octets
 */

static uint16_t
de_rr_iar_rest_oct(tvbuff_t *tvb, proto_tree *subtree, packet_info *pinfo _U_, uint32_t offset, unsigned len _U_, char *add_string _U_, int string_len _U_)
{
    uint32_t curr_bit_offset;
    uint8_t i;
    uint8_t ra_count = 0;
    uint8_t tvb_len = tvb_reported_length(tvb);

    curr_bit_offset = offset << 3;

    for (i = 0; i < 4; i++)
    {
        if (gsm_rr_csn_flag(tvb, subtree, curr_bit_offset++, hf_gsm_a_rr_extended_ra_present))
        {
            proto_tree_add_bits_item(subtree, hf_gsm_a_rr_extended_ra, tvb, curr_bit_offset, 5, ENC_BIG_ENDIAN);
            curr_bit_offset += 5;
            ra_count += 1;
        }
    }
    if (ra_count < 4){
        if (gsm_rr_csn_HL_flag(tvb, subtree, 0, curr_bit_offset++, hf_gsm_a_rr_additions_in_rel_13))
        {
            proto_tree_add_bits_item(subtree, hf_gsm_a_rr_rcc, tvb, curr_bit_offset, 3, ENC_BIG_ENDIAN);
            curr_bit_offset += 3;
        }
    }

    gsm_rr_padding_bits(subtree, tvb, curr_bit_offset, tvb_len, PADDING_BYTE);
    return tvb_len - offset;
}

/*
 * [3] 10.5.2.18 IAX Rest Octets
 */
static uint16_t
de_rr_iax_rest_oct(tvbuff_t *tvb, proto_tree *subtree, packet_info *pinfo _U_, uint32_t offset, unsigned len _U_, char *add_string _U_, int string_len _U_)
{
    uint32_t curr_bit_offset;
    uint8_t tvb_len = tvb_reported_length(tvb);

    curr_bit_offset = offset<<3;

    proto_tree_add_bits_item(subtree, hf_gsm_a_rr_compressed_inter_rat_handover_info, tvb, curr_bit_offset++, 1, ENC_NA);

    if (gsm_rr_csn_HL_flag(tvb, subtree, 0, curr_bit_offset++, hf_gsm_a_rr_additions_in_rel_13))
    {
        proto_tree_add_bits_item(subtree, hf_gsm_a_rr_rcc, tvb, curr_bit_offset, 3, ENC_BIG_ENDIAN);
        curr_bit_offset += 3;
    }

    gsm_rr_padding_bits(subtree, tvb, curr_bit_offset, tvb_len, PADDING_BYTE);
    return tvb_len - offset;
}

/*
 * [3] 10.5.2.19 L2 Pseudo Length
 */
static uint16_t
de_rr_l2_pseudo_len(tvbuff_t *tvb, proto_tree *subtree, packet_info *pinfo _U_, uint32_t offset, unsigned len _U_, char *add_string _U_, int string_len _U_)
{
    uint32_t curr_offset;

    curr_offset = offset;

    /* L2 Pseudo Length value */
    proto_tree_add_item(subtree, hf_gsm_a_rr_L2_pseudo_len, tvb, curr_offset, 1, ENC_BIG_ENDIAN);

    curr_offset = curr_offset + 1;

    return curr_offset - offset;
}

/*
 *
 * 44.018 10.5.2.20 Measurement Results
 */
static const true_false_string gsm_a_rr_dtx_vals  = {
    "DTX was used",
    "DTX was not used"
};


static const true_false_string gsm_a_rr_mv_vals  = {
    "The measurement results are not valid",
    "The measurement results are valid"
};

static const value_string gsm_a_rr_ncell_vals [] = {
    {0, "No neighbour cell measurement result"},
    {1, "1 neighbour cell measurement result"},
    {2, "2 neighbour cell measurement result"},
    {3, "3 neighbour cell measurement result"},
    {4, "4 neighbour cell measurement result"},
    {5, "5 neighbour cell measurement result"},
    {6, "6 neighbour cell measurement result"},
    {7, "Neighbour cell information not available for serving cell"},
    {0, NULL}
};
/*
< Measurement Results Contents > ::=
    { < BA_USED : bit (1) >
        < DTX_USED : bit (1) >
        < RXLEV_FULL_SERVING_CELL : bit (6) >
        < 3G_BA_USED : bit (1) >
        < MEAS_VALID : bit (1) >
        < RXLEV_SUB_SERVING_CELL : bit (6) >
        < SI23_BA_USED : bit (1) >
        < RXQUAL_FULL_SERVING_CELL : bit (3) >
        < RXQUAL_SUB_SERVING_CELL : bit (3) >
        {
            < NO_NCELL_M : { bit (3) := 111 } >
            0**     -- Padding with zeroes
        } |
        {
            < NO_NCELL_M : { bit (3) exclude 111 } >
            { < NCELL Report : < NCELL Report struct >> } * val (NO_NCELL_M)
            { null | 0**      -- Padding with zeroes
                | 1 < UTRAN_CSG_Measurement_Report : < UTRAN_CSG_Measurement_Report IE > >
                { null | 0** }  -- Padding with zeroes
            }
        }
    } & octet (16) ;
< NCELL Report struct > ::=
    < RXLEV-NCELL: bit (6) >
    < BCCH-FREQ-NCELL : bit (5) >
    < BSIC-NCELL : bit (6) > ;

*/
uint16_t
de_rr_meas_res(tvbuff_t *tvb, proto_tree *subtree, packet_info *pinfo _U_, uint32_t offset, unsigned len _U_, char *add_string _U_, int string_len _U_)
{
    int     bit_offset;
    uint64_t no_ncell_m;

    bit_offset = offset << 3;
    /* 2nd octet */
    /* BA-USED */
    proto_tree_add_bits_item(subtree, hf_gsm_a_rr_ba_used, tvb, bit_offset, 1, ENC_BIG_ENDIAN);
    bit_offset++;
    /* DTX USED */
    proto_tree_add_bits_item(subtree, hf_gsm_a_rr_dtx_used, tvb, bit_offset, 1, ENC_BIG_ENDIAN);
    bit_offset++;
    /* RXLEV-FULL-SERVING-CELL */
    proto_tree_add_bits_item(subtree, hf_gsm_a_rr_rxlev_full_serv_cell, tvb, bit_offset, 6, ENC_BIG_ENDIAN);
    bit_offset += 6;

    /* 3rd octet */
    /* 3G-BA-USED */
    proto_tree_add_bits_item(subtree, hf_gsm_a_rr_3g_ba_used, tvb, bit_offset, 1, ENC_BIG_ENDIAN);
    bit_offset++;
    /* MEAS-VALID */
    proto_tree_add_bits_item(subtree, hf_gsm_a_rr_meas_valid, tvb, bit_offset, 1, ENC_BIG_ENDIAN);
    bit_offset++;
    /* RXLEV-SUB-SERVING-CELL */
    proto_tree_add_bits_item(subtree, hf_gsm_a_rr_rxlev_sub_serv_cell, tvb, bit_offset, 6, ENC_BIG_ENDIAN);
    bit_offset += 6;

    /* 4th octet */
    /* SI23_BA_USED */
    proto_tree_add_bits_item(subtree, hf_gsm_a_rr_si23_ba_used, tvb, bit_offset, 1, ENC_BIG_ENDIAN);
    bit_offset++;
    /* RXQUAL-FULL-SERVING-CELL */
    proto_tree_add_bits_item(subtree, hf_gsm_a_rr_rxqual_full_serv_cell, tvb, bit_offset, 3, ENC_BIG_ENDIAN);
    bit_offset += 3;

    /* RXQUAL-SUB-SERVING-CELL */
    proto_tree_add_bits_item(subtree, hf_gsm_a_rr_rxqual_sub_serv_cell, tvb, bit_offset, 3, ENC_BIG_ENDIAN);
    bit_offset += 3;
    /* NO-NCELL-M */
    proto_tree_add_bits_ret_val(subtree, hf_gsm_a_rr_no_ncell_m, tvb, bit_offset, 3, &no_ncell_m, ENC_BIG_ENDIAN);
    bit_offset += 3;
    if (no_ncell_m == 7) /* No neighbour cell information available) */
        no_ncell_m = 0;
    while (no_ncell_m)
    {
        proto_tree_add_bits_item(subtree, hf_gsm_a_rr_rxlev_ncell, tvb, bit_offset, 6, ENC_BIG_ENDIAN);
        bit_offset += 6;
        proto_tree_add_bits_item(subtree, hf_gsm_a_rr_bcch_freq_ncell, tvb, bit_offset, 5, ENC_BIG_ENDIAN);
        bit_offset += 5;
        proto_tree_add_bits_item(subtree, hf_gsm_a_rr_bsic_ncell, tvb, bit_offset, 6, ENC_BIG_ENDIAN);
        bit_offset += 6;
        no_ncell_m -= 1;
    }

    /* The Measurement Results is a type 3 information element with 17 octets length.
     * Thus the value part is 17 - 1 == 16 octets long.  Unused bits are set to zero. */
    gsm_rr_padding_bits(subtree, tvb, bit_offset, 16, 0x00);

    return 16;
}

/*
 * [3] 10.5.2.20a GPRS Measurement Results
 */
/*
 * [3] 10.5.2.21 Mobile Allocation
 */
uint16_t
de_rr_mob_all(tvbuff_t *tvb, proto_tree *tree, packet_info *pinfo _U_, uint32_t offset, unsigned len, char *add_string _U_, int string_len _U_)
{
    uint32_t    curr_offset;
    proto_item *item;
    int         i, j;
    uint8_t     value;

    curr_offset = offset;

    item = proto_tree_add_bytes_format(tree, hf_gsm_a_rr_inc_arfcn_bitmap, tvb, curr_offset, len, NULL,
                                        "Bitmap of increasing ARFCNs included in the Mobile Allocation: ");
    for(i=len; i>0; i--)
    {
        value = tvb_get_uint8(tvb,curr_offset+i-1);
        for (j=0; j<8; j++)
        {
            proto_item_append_text(item,"%d",(value>>j)&0x01);
        }
    }

    curr_offset = curr_offset + len;
    return curr_offset - offset;
}

/*
 * [3] 10.5.2.21a Mobile Time Difference
 */
static uint16_t
de_rr_mob_time_diff(tvbuff_t *tvb, proto_tree *tree, packet_info *pinfo _U_, uint32_t offset, unsigned len, char *add_string _U_, int string_len _U_)
{
    uint32_t curr_offset;

    curr_offset = offset;

    proto_tree_add_item(tree, hf_gsm_a_rr_mobile_time_difference, tvb, curr_offset, len, ENC_BIG_ENDIAN);

    curr_offset = curr_offset + len;
    return curr_offset - offset;

}
/*
 * [3] 10.5.2.21aa MultiRate configuration
 */
/*    Multirate speech version Octet 3 Bits 8 7 6 */
static const value_string multirate_speech_ver_vals[] = {
    { 1, "Adaptive Multirate speech version 1"},
    { 2, "Adaptive Multirate speech version 2"},
    { 0, NULL }
};
/* Bit 5  NSCB: Noise Suppression Control Bit */
static const value_string NSCB_vals[] = {
    { 0, "Noise Suppression can be used (default)"},
    { 1, "Noise Suppression shall be turned off"},
    { 0, NULL }
};
/* Bit 4 ICMI: Initial Codec Mode Indicator */
static const value_string ICMI_vals[] = {
    { 0, "The initial codec mode is defined by the implicit rule provided in 3GPP TS 05.09"},
    { 1, "The initial codec mode is defined by the Start Mode field"},
    { 0, NULL }
};
/*
Table 10.5.2.21aa.2: Set of adaptive multirate codec modes field (octet 4)
for the Multirate speech version 1
*/
static const true_false_string gsm_a_rr_set_of_amr_codec_modes  = {
    "is part of the subset",
    "is not part of the subset"
};

static const value_string gsm_a_rr_amr_threshold_vals[] = {
    {  0, "0.0 dB"},
    {  1, "0.5 dB"},
    {  2, "1.0 dB"},
    {  3, "1.5 dB"},
    {  4, "2.0 dB"},
    {  5, "2.5 dB"},
    {  6, "3.0 dB"},
    {  7, "3.5 dB"},
    {  8, "4.0 dB"},
    {  9, "4.5 dB"},
    { 10, "5.0 dB"},
    { 11, "5.5 dB"},
    { 12, "6.0 dB"},
    { 13, "6.5 dB"},
    { 14, "7.0 dB"},
    { 15, "7.5 dB"},
    { 16, "8.0 dB"},
    { 17, "8.5 dB"},
    { 18, "9.0 dB"},
    { 19, "9.5 dB"},
    { 20, "10.0 dB"},
    { 21, "10.5 dB"},
    { 22, "11.0 dB"},
    { 23, "11.5 dB"},
    { 24, "12.0 dB"},
    { 25, "12.5 dB"},
    { 26, "13.0 dB"},
    { 27, "13.5 dB"},
    { 28, "14.0 dB"},
    { 29, "14.5 dB"},
    { 30, "15.0 dB"},
    { 31, "15.5 dB"},
    { 32, "16.0 dB"},
    { 33, "16.5 dB"},
    { 34, "17.0 dB"},
    { 35, "17.5 dB"},
    { 36, "18.0 dB"},
    { 37, "18.5 dB"},
    { 38, "19.0 dB"},
    { 39, "19.5 dB"},
    { 40, "20.0 dB"},
    { 41, "20.5 dB"},
    { 42, "21.0 dB"},
    { 43, "21.5 dB"},
    { 44, "22.0 dB"},
    { 45, "22.5 dB"},
    { 46, "23.0 dB"},
    { 47, "23.5 dB"},
    { 48, "24.0 dB"},
    { 49, "24.5 dB"},
    { 50, "25.0 dB"},
    { 51, "25.5 dB"},
    { 52, "26.0 dB"},
    { 53, "26.5 dB"},
    { 54, "27.0 dB"},
    { 55, "27.5 dB"},
    { 56, "28.0 dB"},
    { 57, "28.5 dB"},
    { 58, "29.0 dB"},
    { 59, "29.5 dB"},
    { 60, "30.0 dB"},
    { 61, "30.5 dB"},
    { 62, "31.0 dB"},
    { 63, "31.5 dB"},
    { 0, NULL }
};

static value_string_ext gsm_a_rr_amr_threshold_vals_ext = VALUE_STRING_EXT_INIT(gsm_a_rr_amr_threshold_vals);

static const value_string gsm_a_rr_amr_hysteresis_vals[] = {
    {  0, "0.0 dB"},
    {  1, "0.5 dB"},
    {  2, "1.0 dB"},
    {  3, "1.5 dB"},
    {  4, "2.0 dB"},
    {  5, "2.5 dB"},
    {  6, "3.0 dB"},
    {  7, "3.5 dB"},
    {  8, "4.0 dB"},
    {  9, "4.5 dB"},
    { 10, "5.0 dB"},
    { 11, "5.5 dB"},
    { 12, "6.0 dB"},
    { 13, "6.5 dB"},
    { 14, "7.0 dB"},
    { 15, "7.5 dB"},
    { 0, NULL }
};

uint16_t
de_rr_multirate_conf(tvbuff_t *tvb, proto_tree *tree, packet_info *pinfo _U_, uint32_t offset, unsigned len, char *add_string _U_, int string_len _U_)
{
    uint32_t curr_offset;
    uint8_t oct;
    int     bit_offset, remaining_length, nb_of_params;
    proto_item* ver_item;

    curr_offset = offset;

    ver_item = proto_tree_add_item(tree, hf_gsm_a_rr_multirate_speech_ver, tvb, curr_offset, 1, ENC_BIG_ENDIAN);
    proto_tree_add_item(tree, hf_gsm_a_rr_NCSB, tvb, curr_offset, 1, ENC_BIG_ENDIAN);
    proto_tree_add_item(tree, hf_gsm_a_rr_ICMI, tvb, curr_offset, 1, ENC_BIG_ENDIAN);
    /* The initial codec mode is coded as in 3GPP TS 45.009 */
    proto_tree_add_item(tree, hf_gsm_a_rr_start_mode, tvb, curr_offset, 1, ENC_BIG_ENDIAN);
    oct = ( tvb_get_uint8(tvb,curr_offset) &0xe0 ) >> 5;
    curr_offset++;
    switch ( oct){
    case 1:
        /* Adaptive Multirate speech version 1 */
        /* Set of AMR codec modes */
        proto_tree_add_item(tree, hf_gsm_a_rr_set_of_amr_codec_modes_v1_b8, tvb, curr_offset, 1, ENC_BIG_ENDIAN);
        proto_tree_add_item(tree, hf_gsm_a_rr_set_of_amr_codec_modes_v1_b7, tvb, curr_offset, 1, ENC_BIG_ENDIAN);
        proto_tree_add_item(tree, hf_gsm_a_rr_set_of_amr_codec_modes_v1_b6, tvb, curr_offset, 1, ENC_BIG_ENDIAN);
        proto_tree_add_item(tree, hf_gsm_a_rr_set_of_amr_codec_modes_v1_b5, tvb, curr_offset, 1, ENC_BIG_ENDIAN);
        proto_tree_add_item(tree, hf_gsm_a_rr_set_of_amr_codec_modes_v1_b4, tvb, curr_offset, 1, ENC_BIG_ENDIAN);
        proto_tree_add_item(tree, hf_gsm_a_rr_set_of_amr_codec_modes_v1_b3, tvb, curr_offset, 1, ENC_BIG_ENDIAN);
        proto_tree_add_item(tree, hf_gsm_a_rr_set_of_amr_codec_modes_v1_b2, tvb, curr_offset, 1, ENC_BIG_ENDIAN);
        proto_tree_add_item(tree, hf_gsm_a_rr_set_of_amr_codec_modes_v1_b1, tvb, curr_offset, 1, ENC_BIG_ENDIAN);
        curr_offset++;

        remaining_length = len-2;
        break;
    case 2:
        /* Adaptive Multirate speech version 2 */
        proto_tree_add_item(tree, hf_gsm_a_rr_set_of_amr_codec_modes_v2_b5, tvb, curr_offset, 1, ENC_BIG_ENDIAN);
        proto_tree_add_item(tree, hf_gsm_a_rr_set_of_amr_codec_modes_v2_b4, tvb, curr_offset, 1, ENC_BIG_ENDIAN);
        proto_tree_add_item(tree, hf_gsm_a_rr_set_of_amr_codec_modes_v2_b3, tvb, curr_offset, 1, ENC_BIG_ENDIAN);
        proto_tree_add_item(tree, hf_gsm_a_rr_set_of_amr_codec_modes_v2_b2, tvb, curr_offset, 1, ENC_BIG_ENDIAN);
        proto_tree_add_item(tree, hf_gsm_a_rr_set_of_amr_codec_modes_v2_b1, tvb, curr_offset, 1, ENC_BIG_ENDIAN);
        curr_offset++;

        remaining_length = len-2;
        break;
    default:
        expert_add_info(pinfo, ver_item, &ei_gsm_a_rr_unknown_version);
        proto_tree_add_expert_format(tree, pinfo, &ei_gsm_a_rr_data_not_dissected, tvb, curr_offset, len-1, "Data (Not decoded)");
        remaining_length = 0;
        break;
    }

    if (remaining_length)
    {
        bit_offset = (curr_offset<<3) + 2;
        nb_of_params = remaining_length - 1;
        while (nb_of_params)
        {
            proto_tree_add_bits_item(tree, hf_gsm_a_rr_amr_threshold, tvb, bit_offset, 6, ENC_BIG_ENDIAN);
            bit_offset += 6;
            proto_tree_add_bits_item(tree, hf_gsm_a_rr_amr_hysteresis, tvb, bit_offset, 4, ENC_BIG_ENDIAN);
            bit_offset += 4;
            nb_of_params -= 1;
        }
    }

    curr_offset = offset + len;
    return curr_offset - offset;

}
/*
 * [3] 10.5.2.21b Multislot Allocation
 */
static uint16_t
de_rr_mult_all(tvbuff_t *tvb, proto_tree *tree, packet_info *pinfo _U_, uint32_t offset, unsigned len, char *add_string _U_, int string_len _U_)
{
    proto_item *item;
    uint32_t    curr_offset;
    uint8_t     oct;
    uint8_t     i;

    curr_offset = offset;

    oct = tvb_get_uint8(tvb, curr_offset);
    item = proto_tree_add_uint_format(tree, hf_gsm_a_rr_da_list, tvb, curr_offset, 1, oct, "List of DA:");

    curr_offset++;
    for( i=0;i<7;i++ )
    {
        if( (oct>>i) & 1 )
        {
            proto_item_append_text(item," DA%d",i+1);
        }
    }

    if( oct & 0x80 )  /* octet 3a present */
    {
        oct = tvb_get_uint8(tvb, curr_offset);
        item = proto_tree_add_uint_format(tree, hf_gsm_a_rr_ua_list, tvb, curr_offset, 1, oct, "List of UA:");
        curr_offset++;
        for( i=0;i<7;i++ )
        {
            if( (oct>>i) & 1 )
            {
                proto_item_append_text(item," UA%d",i+1);
            }
        }
    }

    while ( curr_offset < offset + len )
    {
        proto_tree_add_item(tree, hf_gsm_a_rr_ma_channel_set, tvb, curr_offset, 1, ENC_BIG_ENDIAN);
        curr_offset++;
    }

    return curr_offset - offset;

}
/*
 * [3] 10.5.2.21c NC mode
 */

 /*
 * [3] 10.5.2.22 Neighbour Cell Description
 */
static const value_string gsm_a_rr_ext_ind_vals[] = {
    { 0, "The information element carries the complete BA"},
    { 1, "The information element carries only a part of the BA"},
    { 0, NULL }
};
static uint16_t
de_rr_neigh_cell_desc(tvbuff_t *tvb, proto_tree *tree, packet_info *pinfo _U_, uint32_t offset, unsigned len _U_, char *add_string _U_, int string_len _U_)
{
    uint32_t curr_offset;

    curr_offset = offset;

    proto_tree_add_item(tree, hf_gsm_a_rr_ext_ind, tvb, curr_offset, 1, ENC_BIG_ENDIAN);
    proto_tree_add_bits_item(tree, hf_gsm_a_rr_ba_ind, tvb, (curr_offset<<3)+3, 1, ENC_BIG_ENDIAN);

    return dissect_arfcn_list(tvb, tree, pinfo, offset, 16, add_string, string_len);
}

 /*
 * [3] 10.5.2.22a Neighbour Cell Description 2
 */
static uint16_t
de_rr_neigh_cell_desc2(tvbuff_t *tvb, proto_tree *tree, packet_info *pinfo _U_, uint32_t offset, unsigned len _U_, char *add_string _U_, int string_len _U_)
{
    uint32_t curr_offset;

    curr_offset = offset;

    proto_tree_add_bits_item(tree, hf_gsm_a_rr_multiband_reporting, tvb, (curr_offset<<3)+1, 2, ENC_BIG_ENDIAN);
    proto_tree_add_bits_item(tree, hf_gsm_a_rr_ba_ind, tvb, (curr_offset<<3)+3, 1, ENC_BIG_ENDIAN);

    return dissect_arfcn_list2(tvb, tree, pinfo, offset, 16, add_string, string_len);
}

/*
 * [3] 10.5.2.22b (void)
 * [3] 10.5.2.22c NT/N Rest Octets
 */

/*
 * [3] 10.5.2.23 P1 Rest Octets
 */
static uint16_t
de_rr_p1_rest_oct(tvbuff_t *tvb, proto_tree *subtree, packet_info *pinfo _U_, uint32_t offset, unsigned len _U_, char *add_string _U_, int string_len _U_)
{
    proto_item *item2;
    uint32_t    curr_offset, value;
    int         bit_offset, bit_offset_sav;
    uint8_t     tvb_len = tvb_reported_length(tvb);
    uint16_t    bit_len = tvb_len << 3;

    curr_offset = offset;
    bit_offset = curr_offset << 3;

    if (gsm_rr_csn_HL_flag(tvb, subtree, bit_len, bit_offset++, hf_gsm_a_rr_nln_pch_present))
    {
        proto_tree_add_bits_item(subtree, hf_gsm_a_rr_nln_pch, tvb, bit_offset, 2, ENC_BIG_ENDIAN);
        bit_offset += 2;
        proto_tree_add_bits_item(subtree, hf_gsm_a_rr_nln_status_pch, tvb, bit_offset, 1, ENC_BIG_ENDIAN);
        bit_offset += 1;
    }
    if (gsm_rr_csn_HL_flag(tvb, subtree, bit_len, bit_offset++, hf_gsm_a_call_prio1))
    {
        item2 = proto_tree_add_bits_item(subtree, hf_gsm_a_call_prio, tvb, bit_offset, 3, ENC_BIG_ENDIAN);
        bit_offset += 3;
        proto_item_append_text(item2, " for Mobile Identity 1");
    }
    if (gsm_rr_csn_HL_flag(tvb, subtree, bit_len, bit_offset++, hf_gsm_a_call_prio2))
    {
        item2 = proto_tree_add_bits_item(subtree, hf_gsm_a_call_prio, tvb, bit_offset, 3, ENC_BIG_ENDIAN);
        bit_offset += 3;
        proto_item_append_text(item2, " for Mobile Identity 2");
    }
    if (gsm_rr_csn_HL_flag(tvb, subtree, bit_len, bit_offset++, hf_gsm_a_rr_group_call_information))
    { /* Group Call Information */
        bit_offset_sav = bit_offset;
        bit_offset += 36;
        if (gsm_rr_csn_flag(tvb, subtree, bit_offset++, hf_gsm_a_rr_group_channel_description))
        { /* Group Channel Description */
            bit_offset += 24;
            if (gsm_rr_csn_flag(tvb, subtree, bit_offset++, hf_gsm_a_rr_hopping_case))
            { /* Hopping case */
                if (gsm_rr_csn_flag(tvb, subtree, bit_offset++, hf_gsm_a_rr_hopping_flag))
                {
                    bit_offset += 64;
                }
                else
                {
                    value = tvb_get_bits8(tvb,bit_offset,8);
                    bit_offset += 8 + (value<<3);
                }
            }
        }
        proto_tree_add_expert_format(subtree, pinfo, &ei_gsm_a_rr_data_not_dissected, tvb, bit_offset_sav>>3, (bit_offset-bit_offset_sav)>>3,
                    "Group Call Information: Data(Not decoded)");
    }
    (void) gsm_rr_csn_HL_flag(tvb, subtree, bit_len, bit_offset++, hf_gsm_a_rr_packet_page_indication_1);
    (void) gsm_rr_csn_HL_flag(tvb, subtree, bit_len, bit_offset++, hf_gsm_a_rr_packet_page_indication_2);

    /* Truncation allowed (see 44.018 section 8.9) */

    gsm_rr_padding_bits(subtree, tvb, bit_offset, tvb_len, PADDING_BYTE);
    return tvb_len - offset;
}

/*
 * [3] 10.5.2.24 P2 Rest Octets
 */
static uint16_t
de_rr_p2_rest_oct(tvbuff_t *tvb, proto_tree *subtree, packet_info *pinfo _U_, uint32_t offset, unsigned len _U_, char *add_string _U_, int string_len _U_)

{
    proto_item *item2;
    uint32_t    curr_offset;
    int         bit_offset;
    uint8_t     tvb_len = tvb_reported_length(tvb);
    uint16_t    bit_len = tvb_len << 3;

    curr_offset = offset;
    bit_offset = curr_offset << 3;

    if (gsm_rr_csn_HL_flag(tvb, subtree, bit_len, bit_offset++, hf_gsm_a_rr_chnl_needed_ch3_present))
    {
        proto_tree_add_bits_item(subtree, hf_gsm_a_rr_chnl_needed_ch3, tvb, bit_offset, 2, ENC_BIG_ENDIAN);
        bit_offset += 2;
    }
    if (gsm_rr_csn_HL_flag(tvb, subtree, bit_len ,bit_offset++, hf_gsm_a_rr_nln_pch_present))
    {
        proto_tree_add_bits_item(subtree, hf_gsm_a_rr_nln_pch, tvb, bit_offset, 2, ENC_BIG_ENDIAN);
        bit_offset += 2;
        proto_tree_add_bits_item(subtree, hf_gsm_a_rr_nln_status_pch, tvb, bit_offset, 1, ENC_BIG_ENDIAN);
        bit_offset += 1;
    }
    if (gsm_rr_csn_HL_flag(tvb, subtree, bit_len, bit_offset++, hf_gsm_a_call_prio1))
    {
       item2 = proto_tree_add_bits_item(subtree, hf_gsm_a_call_prio, tvb, bit_offset, 3, ENC_BIG_ENDIAN);
       bit_offset += 3;
       proto_item_append_text(item2, " for Mobile Identity 1");
    }
    if (gsm_rr_csn_HL_flag(tvb, subtree, bit_len, bit_offset++, hf_gsm_a_call_prio2))
    {
        item2 = proto_tree_add_bits_item(subtree, hf_gsm_a_call_prio, tvb, bit_offset, 3, ENC_BIG_ENDIAN);
        bit_offset += 3;
        proto_item_append_text(item2, " for Mobile Identity 2");
    }
    if (gsm_rr_csn_HL_flag(tvb, subtree, bit_len, bit_offset++, hf_gsm_a_call_prio3))
    {
        item2 = proto_tree_add_bits_item(subtree, hf_gsm_a_call_prio, tvb, bit_offset, 3, ENC_BIG_ENDIAN);
        bit_offset += 3;
        proto_item_append_text(item2, " for Mobile Identity 3");
    }
    (void) gsm_rr_csn_HL_flag(tvb, subtree, bit_len, bit_offset++, hf_gsm_a_rr_packet_paging_procedure_1);
    (void) gsm_rr_csn_HL_flag(tvb, subtree, bit_len, bit_offset++, hf_gsm_a_rr_packet_paging_procedure_2);
    (void) gsm_rr_csn_HL_flag(tvb, subtree, bit_len, bit_offset++, hf_gsm_a_rr_packet_paging_procedure_3);


    if (gsm_rr_csn_HL_flag(tvb, subtree, bit_len, bit_offset++, hf_gsm_a_rr_additions_in_release_6_present))
    { /* Additions in release 6 */
        bit_offset += 1;
        proto_tree_add_expert_format_remaining(subtree, pinfo, &ei_gsm_a_rr_data_not_dissected, tvb, bit_offset>>3, "Additions in Release 6: Data (Not decoded)");
    }

    /* Truncation allowed (see 44.018 section 8.9 */
    gsm_rr_padding_bits(subtree, tvb, bit_offset, tvb_len, PADDING_BYTE);
    return tvb_len - offset;
}

/*
 * [3] 10.5.2.25 P3 Rest Octets
 */
static uint16_t
de_rr_p3_rest_oct(tvbuff_t *tvb, proto_tree *subtree, packet_info *pinfo _U_, uint32_t offset, unsigned len _U_, char *add_string _U_, int string_len _U_)
{
    proto_item *item2;
    uint32_t    curr_offset;
    int         bit_offset;
    uint8_t     tvb_len = tvb_reported_length(tvb);
    uint16_t    bit_len = tvb_len << 3;

    curr_offset = offset;
    bit_offset = curr_offset << 3;

    if (gsm_rr_csn_HL_flag(tvb, subtree, bit_len, bit_offset++, hf_gsm_a_rr_chnl_needed_ch3and4))
    {
        proto_tree_add_bits_item(subtree, hf_gsm_a_rr_chnl_needed_ch3, tvb, bit_offset, 2, ENC_BIG_ENDIAN);
        bit_offset += 2;
        proto_tree_add_bits_item(subtree, hf_gsm_a_rr_chnl_needed_ch4, tvb, bit_offset, 2, ENC_BIG_ENDIAN);
        bit_offset += 2;
    }
    if (gsm_rr_csn_HL_flag(tvb, subtree, bit_len, bit_offset++, hf_gsm_a_rr_nln_pch_present))
    {
        proto_tree_add_bits_item(subtree, hf_gsm_a_rr_nln_pch, tvb, bit_offset, 2, ENC_BIG_ENDIAN);
        bit_offset += 2;
        proto_tree_add_bits_item(subtree, hf_gsm_a_rr_nln_status_pch, tvb, bit_offset, 1, ENC_BIG_ENDIAN);
        bit_offset += 1;
    }
    if (gsm_rr_csn_HL_flag(tvb, subtree, bit_len, bit_offset++, hf_gsm_a_call_prio1))
    {
        item2 = proto_tree_add_bits_item(subtree, hf_gsm_a_call_prio, tvb, bit_offset, 3, ENC_BIG_ENDIAN);
        bit_offset += 3;
        proto_item_append_text(item2, " for Mobile Identity 1");
    }
    if (gsm_rr_csn_HL_flag(tvb, subtree, bit_len, bit_offset++, hf_gsm_a_call_prio2))
    {
        item2 = proto_tree_add_bits_item(subtree, hf_gsm_a_call_prio, tvb, bit_offset, 3, ENC_BIG_ENDIAN);
        bit_offset += 3;
        proto_item_append_text(item2, " for Mobile Identity 2");
    }
    if (gsm_rr_csn_HL_flag(tvb, subtree, bit_len, bit_offset++, hf_gsm_a_call_prio3))
    {
        item2 = proto_tree_add_bits_item(subtree, hf_gsm_a_call_prio, tvb, bit_offset, 3, ENC_BIG_ENDIAN);
        bit_offset += 3;
        proto_item_append_text(item2, " for Mobile Identity 3");
    }
    if (gsm_rr_csn_HL_flag(tvb, subtree, bit_len, bit_offset++, hf_gsm_a_call_prio4))
    {
        item2 = proto_tree_add_bits_item(subtree, hf_gsm_a_call_prio, tvb, bit_offset, 3, ENC_BIG_ENDIAN);
        bit_offset += 3;
        proto_item_append_text(item2, " for Mobile Identity 4");
    }

    /* Truncation allowed (see 44.018 section 8.9 */
    gsm_rr_padding_bits(subtree, tvb, bit_offset, tvb_len, PADDING_BYTE);
    return tvb_len - offset;
}

/*
 * [3] 10.5.2.25a Packet Channel Description C V 3
 */
static uint16_t
de_rr_packet_ch_desc(tvbuff_t *tvb, proto_tree *subtree, packet_info *pinfo _U_, uint32_t offset, unsigned len _U_, char *add_string _U_, int string_len _U_)
{
    uint32_t     curr_offset = offset;
    uint32_t      oct8;
    uint8_t       second_oct8;

    /* Octet 2 */
    /* Channel Type */
    proto_tree_add_bits_item(subtree, hf_gsm_a_rr_packet_channel_type, tvb, (curr_offset<<3), 5, ENC_NA);
    /* TN */
    proto_tree_add_item(subtree, hf_gsm_a_rr_timeslot, tvb, curr_offset, 1, ENC_BIG_ENDIAN);

    curr_offset +=1;

    /* Octet 3 */
    proto_tree_add_item_ret_uint(subtree, hf_gsm_a_rr_training_sequence, tvb, curr_offset, 1, ENC_BIG_ENDIAN, &oct8);
    if ((oct8 & 0x10) == 0x10)
    {
        /* Hopping sequence */
        proto_tree_add_bits_item(subtree, hf_gsm_a_rr_hopping_channel_maio, tvb, (curr_offset<<3)+4, 6, ENC_NA);
        proto_tree_add_bits_item(subtree, hf_gsm_a_rr_hsn, tvb, (curr_offset<<3)+10, 6, ENC_NA);

        curr_offset = curr_offset + 2;
    }
    else
    {
        if ((oct8 & 0x08) == 0x08)
        {
            second_oct8 = tvb_get_uint8(tvb, curr_offset+1);

            /* indirect encoding of hopping RF channel configuration */
            proto_tree_add_bits_item(subtree, hf_gsm_a_rr_spare, tvb, (curr_offset<<3)+5, 1, ENC_NA);
            proto_tree_add_bits_item(subtree, hf_gsm_a_rr_hopping_channel_maio, tvb, (curr_offset<<3)+6, 6, ENC_NA);
            proto_tree_add_bits_item(subtree, hf_gsm_a_rr_hopping_channel_ma_num_ind, tvb, (curr_offset<<3)+12, 1, ENC_NA);

            if( (second_oct8 & 0x04) == 0x04 )
            {
                proto_tree_add_bits_item(subtree, hf_gsm_a_rr_hopping_channel_change_mark_1, tvb, (curr_offset<<3)+14, 2, ENC_NA);
            }
            else
            {
                proto_tree_add_bits_item(subtree, hf_gsm_a_rr_spare, tvb, (curr_offset<<3)+14, 2, ENC_NA);
            }
            curr_offset = curr_offset + 2;
        }
        else
        {
            /* non-hopping RF channel configuration */
            proto_tree_add_bits_item(subtree, hf_gsm_a_rr_spare, tvb, (curr_offset<<3)+5, 1, ENC_NA);
            proto_tree_add_bits_item(subtree, hf_gsm_a_rr_single_channel_arfcn, tvb, (curr_offset<<3)+6, 10, ENC_NA);
            curr_offset = curr_offset + 2;
        }
    }

    return curr_offset - offset;

}
/*
 * [3] 10.5.2.25b Dedicated mode or TBF
 */

static const value_string gsm_a_rr_dedicated_mode_or_tbf_vals[] = {
    { 0, "This message assigns a dedicated mode resource"},
    { 1, "This message assigns an uplink TBF or is the second message of two in a two-message assignment of an uplink or downlink TBF"},
    { 2, "Not used"},
    { 3, "This message assigns a downlink TBF to the mobile station identified in the IA Rest Octets IE"},
    { 4, "Not used"},
    { 5, "This message is the first message of two in a two-message assignment of an uplink TBF"},
    { 6, "Not used"},
    { 7, "This message is the first message of two in a two-message assignment of a downlink TBF to the mobile station identified in the IA Rest Octets IE"},
    { 0, NULL }
};
static uint16_t
de_rr_ded_mod_or_tbf(tvbuff_t *tvb, proto_tree *subtree, packet_info *pinfo _U_, uint32_t offset, unsigned len _U_, char *add_string _U_, int string_len _U_)
{
    uint32_t curr_offset;

    curr_offset = offset;

    proto_tree_add_item(subtree, hf_gsm_a_rr_dedicated_mode_or_tbf, tvb, curr_offset, 1, ENC_BIG_ENDIAN);

    curr_offset += 1;

    return curr_offset - offset;
}
/*
 * [3] 10.5.2.25c RR Packet Uplink Assignment
 */
static uint16_t
de_rr_pkt_ul_ass(tvbuff_t *tvb, proto_tree *subtree, packet_info *pinfo, uint32_t offset, unsigned len _U_, char *add_string _U_, int string_len _U_)
{
    uint32_t curr_offset = offset;

    proto_tree_add_expert(subtree, pinfo, &ei_gsm_a_rr_data_not_dissected, tvb, curr_offset, len);

    return len;
}

/*
 * [3] 10.5.2.25d RR Packet Downlink Assignment
 */
static uint16_t
de_rr_pkt_dl_ass(tvbuff_t *tvb, proto_tree *subtree, packet_info *pinfo _U_, uint32_t offset, unsigned len _U_, char *add_string _U_, int string_len _U_)
{
    uint32_t curr_offset = offset;

    proto_tree_add_expert(subtree, pinfo, &ei_gsm_a_rr_data_not_dissected, tvb, curr_offset, len);

    return len;
}

/*
 * [3] 10.5.2.25e RR Packet Downlink Assignment Type 2
 */
static uint16_t
de_rr_pkt_dl_ass_type2(tvbuff_t *tvb, proto_tree *subtree, packet_info *pinfo _U_, uint32_t offset, unsigned len _U_, char *add_string _U_, int string_len _U_)
{
    uint32_t curr_offset = offset;

    proto_tree_add_expert(subtree, pinfo, &ei_gsm_a_rr_data_not_dissected, tvb, curr_offset, len);

    return len;
}

/*
 * [3] 10.5.2.26 Page Mode
 */

static const value_string gsm_a_rr_page_mode_vals[] = {
    { 0, "Normal paging"},
    { 1, "Extended paging"},
    { 2, "Paging reorganization"},
    { 3, "Same as before"},
    { 0, NULL }
};
static uint16_t
de_rr_page_mode(tvbuff_t *tvb, proto_tree *subtree, packet_info *pinfo _U_, uint32_t offset, unsigned len _U_, char *add_string _U_, int string_len _U_)
{
    uint32_t curr_offset;

    curr_offset = offset;

    proto_tree_add_item(subtree, hf_gsm_a_rr_page_mode, tvb, curr_offset, 1, ENC_BIG_ENDIAN);

    curr_offset += 1;

    return curr_offset - offset;
}
/*
 * [3] 10.5.2.26a (void)
 * [3] 10.5.2.26b (void)
 * [3] 10.5.2.26c (void)
 * [3] 10.5.2.26d (void)
 */
/*
 * [3] 10.5.2.27 NCC Permitted
 */
static uint16_t
de_rr_ncc_perm(tvbuff_t *tvb, proto_tree *subtree, packet_info *pinfo _U_, uint32_t offset, unsigned len _U_, char *add_string _U_, int string_len _U_)
{
    uint32_t curr_offset;

    curr_offset = offset;

    proto_tree_add_item(subtree, hf_gsm_a_rr_ncc_permitted, tvb, curr_offset, 1, ENC_BIG_ENDIAN);

    curr_offset = curr_offset + 1;

    return curr_offset - offset;
}
/*
 * [3] 10.5.2.28 Power Command
 *
 *
 * ATC (Access Type Control) (octet 2)Bit 8
 * 0    Sending of Handover access is mandatory
 * 1    Sending of Handover access is optional
 */
static const true_false_string gsm_a_rr_pow_cmd_atc_value  = {
    "Sending of Handover access is optional",
    "Sending of Handover access is mandatory"
};
/*
 *  The EPC mode field (octet 2) indicates whether the assigned channel(s)
 *  shall be in enhanced power control (EPC) mode. It is only valid for channels
 *  on which EPC may be used. It is coded as follows:
*/
static const true_false_string gsm_a_rr_pow_cmd_epc_value  = {
    "Channel(s) in EPC mode",
    "Channel(s) not in EPC mode"
};
/*
 * FPC_EPC (octet 2)
 * The FPC_EPC field (octet 2) has different interpretation depending
 *              on the channel mode     of the assigned channel (s) and the value
 *              of the EPC mode field.
 * If the channel mode is such that fast power control (FPC) may be
 *              used, the FPC_EPC field indicates whether Fast Measurement
 *              Reporting and Power Control mechanism is used.
 *              It is coded as follows:
 * Value 0      FPC not in use
 *       1      FPC in use
 * If the channel mode is such that EPC may be used and the EPC mode
 *              field indicates that the channel is in EPC mode, the FPC_EPC
 *              field indicates whether EPC shall be used for uplink power control.
 * It is coded as follows:
 * Value 0      EPC not in use for uplink power control
 *       1      EPC in use for uplink power control
 *
 */
static const true_false_string gsm_a_rr_pow_cmd_fpcepc_value  = {
    "FPC in use/EPC in use for uplink power control",
    "FPC not in use/EPC not in use for uplink power control"
};

/*
 * Power level (octet 2)The power level field is coded as the binaryRepresentation
 * of the "power control level", see 3GPP TS 3GPP TS 45.005. This value shall be used
 * by the mobile station According to 3GPP TS 45.008.Range: 0 to 31.
 */

static uint16_t
de_rr_pow_cmd(tvbuff_t *tvb, proto_tree *subtree, packet_info *pinfo _U_, uint32_t offset, unsigned len _U_, char *add_string _U_, int string_len _U_)
{
    uint32_t curr_offset;

    curr_offset = offset;

    proto_tree_add_item(subtree, hf_gsm_a_b8spare, tvb, curr_offset, 1, ENC_BIG_ENDIAN);
    /*EPC mode */
    proto_tree_add_item(subtree, hf_gsm_a_rr_pow_cmd_epc, tvb, curr_offset, 1, ENC_BIG_ENDIAN);
    /*FPC_EPC*/
    proto_tree_add_item(subtree, hf_gsm_a_rr_pow_cmd_fpcepc, tvb, curr_offset, 1, ENC_BIG_ENDIAN);
    /*POWER LEVEL*/
    proto_tree_add_item(subtree, hf_gsm_a_rr_pow_cmd_powlev, tvb, curr_offset, 1, ENC_BIG_ENDIAN);

    curr_offset = curr_offset + 1;

    return curr_offset - offset;
}

/*
 * [3] 10.5.2.28a Power Command and access type
 */
static uint16_t
de_rr_pow_cmd_and_acc_type(tvbuff_t *tvb, proto_tree *subtree, packet_info *pinfo _U_, uint32_t offset, unsigned len _U_, char *add_string _U_, int string_len _U_)
{
    uint32_t curr_offset;

    curr_offset = offset;

    /*ATC */
    proto_tree_add_item(subtree, hf_gsm_a_rr_pow_cmd_atc, tvb, curr_offset, 1, ENC_BIG_ENDIAN);
    /*EPC mode */
    proto_tree_add_item(subtree, hf_gsm_a_rr_pow_cmd_epc, tvb, curr_offset, 1, ENC_BIG_ENDIAN);
    /*FPC_EPC*/
    proto_tree_add_item(subtree, hf_gsm_a_rr_pow_cmd_fpcepc, tvb, curr_offset, 1, ENC_BIG_ENDIAN);
    /*POWER LEVEL*/
    proto_tree_add_item(subtree, hf_gsm_a_rr_pow_cmd_powlev, tvb, curr_offset, 1, ENC_BIG_ENDIAN);

    curr_offset = curr_offset + 1;

    return curr_offset - offset;
}
/*
 * [3] 10.5.2.29 RACH Control Parameters
 */

static const value_string gsm_a_rr_max_retrans_vals[] = {
    {  0, "Maximum 1 retransmission"},
    {  1, "Maximum 2 retransmissions"},
    {  2, "Maximum 4 retransmissions"},
    {  3, "Maximum 7 retransmissions"},
    {  0, NULL }
};

static const value_string gsm_a_rr_tx_integer_vals[] = {
    {  0, "3 slots used to spread transmission"},
    {  1, "4 slots used to spread transmission"},
    {  2, "5 slots used to spread transmission"},
    {  3, "6 slots used to spread transmission"},
    {  4, "7 slots used to spread transmission"},
    {  5, "8 slots used to spread transmission"},
    {  6, "9 slots used to spread transmission"},
    {  7, "10 slots used to spread transmission"},
    {  8, "11 slots used to spread transmission"},
    {  9, "12 slots used to spread transmission"},
    { 10, "14 slots used to spread transmission"},
    { 11, "16 slots used to spread transmission"},
    { 12, "20 slots used to spread transmission"},
    { 13, "25 slots used to spread transmission"},
    { 14, "32 slots used to spread transmission"},
    { 15, "50 slots used to spread transmission"},
    {  0, NULL }
};
static const value_string gsm_a_rr_cell_barr_access_vals[] = {
    {  0, "The cell is not barred"},
    {  1, "The cell is barred"},
    {  0, NULL }
};
static const value_string gsm_a_rr_re_vals[] = {
    {  0, "Call Reestablishment allowed in the cell"},
    {  1, "Call Reestablishment not allowed in the cell"},
    {  0, NULL }
};

static uint16_t
de_rr_rach_ctrl_param(tvbuff_t *tvb, proto_tree *subtree, packet_info *pinfo _U_, uint32_t offset, unsigned len _U_, char *add_string _U_, int string_len _U_)
{
    uint32_t curr_offset;

    curr_offset = offset;

    proto_tree_add_item(subtree, hf_gsm_a_rr_max_retrans, tvb, curr_offset, 1, ENC_BIG_ENDIAN);
    proto_tree_add_item(subtree, hf_gsm_a_rr_tx_integer, tvb, curr_offset, 1, ENC_BIG_ENDIAN);
    proto_tree_add_item(subtree, hf_gsm_a_rr_cell_barr_access, tvb, curr_offset, 1, ENC_BIG_ENDIAN);
    proto_tree_add_item(subtree, hf_gsm_a_rr_re, tvb, curr_offset, 1, ENC_BIG_ENDIAN);
    curr_offset = curr_offset + 1;

    proto_tree_add_item(subtree, hf_gsm_a_rr_acc, tvb, curr_offset, 2, ENC_BIG_ENDIAN);

    curr_offset = curr_offset + 2;

    return curr_offset - offset;
}
/*
 * [3] 10.5.2.30 Request Reference M V 3
 */
uint16_t parse_reduced_frame_number(tvbuff_t *tvb, const int offset)
{
    /* great care needed with signed/unsigned - -1 in unsigned is 0xffff, which mod(26) is not what you think !!! */
    int16_t t2, t3, t;
    uint16_t frame, t1;
    uint16_t fn;

    fn = tvb_get_ntohs(tvb, offset);

    t1 = (fn >> 11) & 0x1f;
    t2 = (fn >> 0) & 0x1f;
    t3 = (fn >> 5) & 0x3f;

    t = (t3-t2)%26;
    if (t<0)
        t += 26;

    frame = 51*(unsigned)t+(unsigned)t3+51*26*t1;

    return frame;
}

static uint16_t
de_rr_req_ref(tvbuff_t *tvb, proto_tree *subtree, packet_info *pinfo _U_, uint32_t offset, unsigned len _U_, char *add_string _U_, int string_len _U_)
{
    proto_item *item;
    uint32_t    curr_offset;
    uint16_t    rfn;

    curr_offset = offset;

    proto_tree_add_item(subtree, hf_gsm_a_rr_ra, tvb, curr_offset, 1, ENC_BIG_ENDIAN);
    curr_offset++;
    rfn = parse_reduced_frame_number(tvb, curr_offset);
    proto_tree_add_item(subtree, hf_gsm_a_rr_T1prim, tvb, curr_offset, 1, ENC_BIG_ENDIAN);
    proto_tree_add_item(subtree, hf_gsm_a_rr_T3, tvb, curr_offset, 2, ENC_BIG_ENDIAN);
    curr_offset++;
    proto_tree_add_item(subtree, hf_gsm_a_rr_T2, tvb, curr_offset, 1, ENC_BIG_ENDIAN);
    curr_offset++;
    item = proto_tree_add_uint(subtree, hf_gsm_a_rr_rfn, tvb, curr_offset-2, 2, rfn);
    proto_item_set_generated(item);

    return curr_offset - offset;
}
/*
 * [3] 10.5.2.31
 */
uint16_t
de_rr_cause(tvbuff_t *tvb, proto_tree *tree, packet_info *pinfo _U_, uint32_t offset, unsigned len _U_, char *add_string _U_, int string_len _U_)
{
    uint32_t curr_offset;

    curr_offset = offset;

    proto_tree_add_item(tree, hf_gsm_a_rr_RR_cause, tvb, curr_offset, 1, ENC_BIG_ENDIAN);

    curr_offset++;

    return curr_offset - offset;
}

/*
 * [3] 10.5.2.32 SI 1 Rest Octets
 */
static const value_string gsm_a_rr_nch_position_vals[] = {
    { 0, "No of blocks = 1 and Number of first block = 0"},
    { 1, "No of blocks = 1 and Number of first block = 1"},
    { 2, "No of blocks = 1 and Number of first block = 2"},
    { 3, "No of blocks = 1 and Number of first block = 3"},
    { 4, "No of blocks = 1 and Number of first block = 4"},
    { 5, "No of blocks = 1 and Number of first block = 5"},
    { 6, "No of blocks = 1 and Number of first block = 6"},
    { 7, "No of blocks = 1 and Number of first block = 0"},
    { 8, "No of blocks = 2 and Number of first block = 1"},
    { 9, "No of blocks = 2 and Number of first block = 2"},
    {10, "No of blocks = 2 and Number of first block = 3"},
    {11, "No of blocks = 2 and Number of first block = 4"},
    {12, "No of blocks = 2 and Number of first block = 5"},
    {13, "No of blocks = 3 and Number of first block = 0"},
    {14, "No of blocks = 3 and Number of first block = 1"},
    {15, "No of blocks = 3 and Number of first block = 2"},
    {16, "No of blocks = 3 and Number of first block = 3"},
    {17, "No of blocks = 3 and Number of first block = 4"},
    {18, "No of blocks = 4 and Number of first block = 0"},
    {19, "No of blocks = 4 and Number of first block = 1"},
    {20, "No of blocks = 4 and Number of first block = 2"},
    {21, "No of blocks = 4 and Number of first block = 3"},
    {22, "No of blocks = 5 and Number of first block = 0"},
    {23, "No of blocks = 5 and Number of first block = 1"},
    {24, "No of blocks = 5 and Number of first block = 2"},
    {25, "No of blocks = 6 and Number of first block = 0"},
    {26, "No of blocks = 6 and Number of first block = 1"},
    {27, "No of blocks = 7 and Number of first block = 0"},
    {28, "Reserved"},
    {29, "Reserved"},
    {30, "Reserved"},
    {31, "Reserved"},
    { 0, NULL }
};

static uint16_t
de_rr_si1_rest_oct(tvbuff_t *tvb, proto_tree *subtree, packet_info *pinfo _U_, uint32_t offset, unsigned len _U_, char *add_string _U_, int string_len _U_)
{
    uint32_t curr_offset;
    int     bit_offset;
    uint8_t tvb_len = tvb_reported_length(tvb);

    curr_offset = offset;
    bit_offset = curr_offset << 3;

    if (gsm_rr_csn_HL_flag(tvb, subtree, 0, bit_offset++, hf_gsm_a_rr_nch_position_present))
    {
        proto_tree_add_bits_item(subtree, hf_gsm_a_rr_nch_position, tvb, bit_offset, 5, ENC_BIG_ENDIAN);
        bit_offset += 5;
    }
    (void) gsm_rr_csn_HL_flag(tvb, subtree, 0, bit_offset++, hf_gsm_a_rr_band_indicator);

    gsm_rr_padding_bits(subtree, tvb, bit_offset, tvb_len, PADDING_BYTE);
    return tvb_len - offset;
}

/*
 * [3] 10.5.2.33 SI 2bis Rest Octets
 */

/*
 * [3] 10.5.2.33a SI 2ter Rest Octets
 */
static const value_string gsm_a_rr_qsearch_x_vals[] = {
    { 0, "-98 dBm"},
    { 1, "-94 dBm"},
    { 2, "-90 dBm"},
    { 3, "-86 dBm"},
    { 4, "-82 dBm"},
    { 5, "-78 dBm"},
    { 6, "-74 dBm"},
    { 7, "Always"},
    { 8, "-78 dBm"},
    { 9, "-74 dBm"},
    {10, "-70 dBm"},
    {11, "-66 dBm"},
    {12, "-62 dBm"},
    {13, "-58 dBm"},
    {14, "-54 dBm"},
    {15, "Never"},
    { 0, NULL }
};

static const value_string gsm_a_rr_xdd_qoffset_vals[] = {
    { 0, "always select a cell if acceptable"},
    { 1, "-28 dB"},
    { 2, "-24 dB"},
    { 3, "-20 dB"},
    { 4, "-16 dB"},
    { 5, "-12 dB"},
    { 6, "-8 dB"},
    { 7, "-4 dB"},
    { 8, "0 dB"},
    { 9, "4 dB"},
    {10, "8 dB"},
    {11, "12 dB"},
    {12, "16 dB"},
    {13, "20 dB"},
    {14, "24 dB"},
    {15, "28 dB"},
    { 0, NULL }
};

static const value_string gsm_a_rr_fdd_qmin_vals[] = {
    { 0, "-20 dB"},
    { 1, "-6 dB"},
    { 2, "-18 dB"},
    { 3, "-8 dB"},
    { 4, "-16 dB"},
    { 5, "-10 dB"},
    { 6, "-14 dB"},
    { 7, "-12 dB"},
    { 0, NULL }
};

static const value_string gsm_a_rr_fdd_qmin_offset_vals[] = {
    { 0, "0 dB"},
    { 1, "2 dB"},
    { 2, "4 dB"},
    { 3, "6 dB"},
    { 4, "8 dB"},
    { 5, "10 dB"},
    { 6, "12 dB"},
    { 7, "14 dB"},
    { 0, NULL }
};

static const value_string gsm_a_rr_fdd_rscpmin_vals[] = {
    { 0, "-114 dBm"},
    { 1, "-112 dBm"},
    { 2, "-110 dBm"},
    { 3, "-108 dBm"},
    { 4, "-106 dBm"},
    { 5, "-104 dBm"},
    { 6, "-102 dBm"},
    { 7, "-100 dBm"},
    { 8, "-98 dBm"},
    { 9, "-96 dBm"},
    {10, "-94 dBm"},
    {11, "-92 dBm"},
    {12, "-90 dBm"},
    {13, "-88 dBm"},
    {14, "-86 dBm"},
    {15, "-84 dBm"},
    { 0, NULL }
};

static uint16_t
de_rr_si2ter_rest_oct(tvbuff_t *tvb, proto_tree *subtree, packet_info *pinfo _U_, uint32_t offset, unsigned len _U_, char *add_string _U_, int string_len _U_)
{
    proto_tree *subtree2;
    proto_item *item2;
    uint32_t    curr_offset;
    int         bit_offset, bit_offset_sav;
    uint8_t     tvb_len = tvb_reported_length(tvb);
    uint16_t    bit_len = tvb_len << 3;

    curr_offset = offset;
    bit_offset = curr_offset<<3;

    if (gsm_rr_csn_HL_flag(tvb, subtree, 0, bit_offset++, hf_gsm_a_rr_si2ter_mp_change_mark_present))
    {
        proto_tree_add_bits_item(subtree, hf_gsm_a_rr_si2ter_mp_change_mark, tvb, bit_offset, 1, ENC_BIG_ENDIAN);
        bit_offset += 1;
        proto_tree_add_bits_item(subtree, hf_gsm_a_rr_si2ter_3g_change_mark, tvb, bit_offset, 1, ENC_BIG_ENDIAN);
        bit_offset += 1;
        proto_tree_add_bits_item(subtree, hf_gsm_a_rr_si2ter_index, tvb, bit_offset, 3, ENC_BIG_ENDIAN);
        bit_offset += 3;
        proto_tree_add_bits_item(subtree, hf_gsm_a_rr_si2ter_count, tvb, bit_offset, 3, ENC_BIG_ENDIAN);
        bit_offset += 3;
        if (gsm_rr_csn_flag(tvb, subtree, bit_offset++, hf_gsm_a_rr_utran_fdd_description))
        { /* UTRAN FDD Description */
            bit_offset_sav = bit_offset;
            subtree2 = proto_tree_add_subtree(subtree, tvb, bit_offset>>3, -1, ett_gsm_rr_rest_octets_elem[DE_RR_REST_OCTETS_UTRAN_FDD_DESC], &item2,
                                        gsm_rr_rest_octets_elem_strings[DE_RR_REST_OCTETS_UTRAN_FDD_DESC]);
            proto_tree_add_bits_item(subtree2, hf_gsm_a_rr_utran_fdd_description_earlier_version_bit_reserved1, tvb, bit_offset++, 1, ENC_NA);
            proto_tree_add_bits_item(subtree2, hf_gsm_a_rr_utran_fdd_description_earlier_version_bit_reserved2, tvb, bit_offset++, 1, ENC_NA);
            proto_tree_add_bits_item(subtree2, hf_gsm_a_rr_fdd_uarfcn, tvb, bit_offset, 14, ENC_BIG_ENDIAN);
            bit_offset += 14;
            if (gsm_rr_csn_flag(tvb, subtree2, bit_offset++, hf_gsm_a_rr_bandwidth_fdd_present))
            {
                proto_tree_add_bits_item(subtree2, hf_gsm_a_rr_bandwidth_fdd, tvb, bit_offset, 3, ENC_BIG_ENDIAN);
                bit_offset += 3;
            }
            proto_item_set_len(item2,(bit_offset>>3) - (bit_offset_sav>>3)+1);
        }
        if (gsm_rr_csn_flag(tvb, subtree, bit_offset++, hf_gsm_a_rr_utran_tdd_description))
        { /* UTRAN TDD Description */
            bit_offset_sav = bit_offset;
            subtree2 = proto_tree_add_subtree(subtree, tvb, bit_offset>>3, -1, ett_gsm_rr_rest_octets_elem[DE_RR_REST_OCTETS_UTRAN_TDD_DESC], &item2,
                    gsm_rr_rest_octets_elem_strings[DE_RR_REST_OCTETS_UTRAN_TDD_DESC]);
            proto_tree_add_bits_item(subtree2, hf_gsm_a_rr_utran_tdd_description_earlier_version_bit_reserved1, tvb, bit_offset++, 1, ENC_NA);
            proto_tree_add_bits_item(subtree2, hf_gsm_a_rr_utran_tdd_description_earlier_version_bit_reserved2, tvb, bit_offset++, 1, ENC_NA);
            proto_tree_add_bits_item(subtree2, hf_gsm_a_rr_tdd_uarfcn, tvb, bit_offset, 14, ENC_BIG_ENDIAN);
            bit_offset += 14;
            if (gsm_rr_csn_flag(tvb, subtree2, bit_offset++, hf_gsm_a_rr_bandwidth_tdd_present))
            {
                proto_tree_add_bits_item(subtree2, hf_gsm_a_rr_bandwidth_tdd, tvb, bit_offset, 3, ENC_BIG_ENDIAN);
                bit_offset += 3;
            }
            proto_item_set_len(item2,(bit_offset>>3) - (bit_offset_sav>>3)+1);
        }
        if (gsm_rr_csn_flag(tvb, subtree, bit_offset++, hf_gsm_a_rr_3g_measurement_parameters_description))
        { /* 3G Measurement Parameters Description */
            bit_offset_sav = bit_offset;
            subtree2 = proto_tree_add_subtree(subtree, tvb, bit_offset>>3, -1, ett_gsm_rr_rest_octets_elem[DE_RR_REST_OCTETS_3G_MEAS_PARAM_DESC], &item2,
                                    gsm_rr_rest_octets_elem_strings[DE_RR_REST_OCTETS_3G_MEAS_PARAM_DESC]);
            proto_tree_add_bits_item(subtree2, hf_gsm_a_rr_qsearch_i, tvb, bit_offset, 4, ENC_BIG_ENDIAN);
            bit_offset += 4;
            if (gsm_rr_csn_flag(tvb, subtree, bit_offset++, hf_gsm_a_rr_fdd_parameters))
            {
                proto_tree_add_bits_item(subtree2, hf_gsm_a_rr_fdd_qoffset, tvb, bit_offset, 4, ENC_BIG_ENDIAN);
                bit_offset += 4;
                proto_tree_add_bits_item(subtree2, hf_gsm_a_rr_fdd_qmin, tvb, bit_offset, 3, ENC_BIG_ENDIAN);
                bit_offset += 3;
            }
            if (gsm_rr_csn_flag(tvb, subtree, bit_offset++, hf_gsm_a_rr_tdd_parameters))
            {
                proto_tree_add_bits_item(subtree2, hf_gsm_a_rr_tdd_qoffset, tvb, bit_offset, 4, ENC_BIG_ENDIAN);
                bit_offset += 4;
            }
            proto_item_set_len(item2,(bit_offset>>3) - (bit_offset_sav>>3)+1);
        }
        /* Null breakpoint */
        if (bit_len - bit_offset > 0)
        {
            /* There is still room left in the Rest Octets IE */
            if (gsm_rr_csn_HL_flag(tvb, subtree, 0, bit_offset++, hf_gsm_a_rr_additions_in_rel_5))
            { /* Additions in release R5 */
                if (gsm_rr_csn_flag(tvb, subtree, bit_offset++, hf_gsm_a_rr_3g_additional_measurement_parameters_description))
                { /* 3G Additional Measurement Parameters Description */
                    bit_offset_sav = bit_offset;
                    subtree2 = proto_tree_add_subtree(subtree, tvb, bit_offset>>3, -1, ett_gsm_rr_rest_octets_elem[DE_RR_REST_OCTETS_3G_ADD_MEAS_PARAM_DESC], &item2,
                                                    gsm_rr_rest_octets_elem_strings[DE_RR_REST_OCTETS_3G_ADD_MEAS_PARAM_DESC]);
                    proto_tree_add_bits_item(subtree2, hf_gsm_a_rr_fdd_qmin_offset, tvb, bit_offset, 3, ENC_BIG_ENDIAN);
                    bit_offset += 3;
                    proto_tree_add_bits_item(subtree2, hf_gsm_a_rr_fdd_rscpmin, tvb, bit_offset, 4, ENC_BIG_ENDIAN);
                    bit_offset += 4;
                    proto_item_set_len(item2,(bit_offset>>3) - (bit_offset_sav>>3)+1);
                }
            }
        }
    }
    gsm_rr_padding_bits(subtree, tvb, bit_offset, tvb_len, PADDING_BYTE);
    return tvb_len - offset;
}

/*
 * [3] 10.5.2.33b SI 2quater Rest Octets
 */
static const true_false_string gsm_a_rr_gsm_report_type_value = {
    "The MS shall use the Measurement Report message for reporting",
    "The MS shall use the Enhanced Measurement Report message for reporting if at least one BSIC is allocated to each BA (list) frequency. Otherwise, the Measurement Report message shall be used"
};

static const true_false_string gsm_a_rr_frequency_scrolling_value = {
    "Next BSIC in the structure relates to the subsequent frequency in the BA(list)",
    "Next BSIC in the structure relates to the same frequency in the BA(list)"
};

static const true_false_string gsm_a_rr_rep_priority_value = {
    "High reporting priority",
    "Normal reporting priority"
};

static const true_false_string gsm_a_rr_report_type_value = {
    "The MS shall use the PACKET MEASUREMENT REPORT message for reporting",
    "The MS shall use the PACKET ENHANCED MEASUREMENT REPORT message for reporting"
};

static const true_false_string gsm_a_rr_reporting_rate_value = {
    "Reduced reporting rate allowed",
    "Normal reporting rate"
};

static const true_false_string gsm_a_rr_invalid_bsic_reporting_value = {
    "Report on cells with invalid BSIC and allowed NCC part of BSIC is allowed",
    "Report on cells with invalid BSIC and allowed NCC part of BSIC is not allowed"
};

static const value_string gsm_a_rr_scale_ord_vals[] = {
    { 0, "An offset of 0 dB shall be used for the reported RXLEV values"},
    { 1, "An offset of 10 dB shall be used for the reported RXLEV values"},
    { 2, "An automatic offset shall be used for the reported RXLEV values"},
    { 0, NULL }
};

static const value_string gsm_a_rr_xxx_reporting_offset_vals[] = {
    { 0, "Apply an offset of 0 dB to the reported value when prioritising the cells for reporting"},
    { 1, "Apply an offset of 6 dB to the reported value when prioritising the cells for reporting"},
    { 2, "Apply an offset of 12 dB to the reported value when prioritising the cells for reporting"},
    { 3, "Apply an offset of 18 dB to the reported value when prioritising the cells for reporting"},
    { 4, "Apply an offset of 24 dB to the reported value when prioritising the cells for reporting"},
    { 5, "Apply an offset of 30 dB to the reported value when prioritising the cells for reporting"},
    { 6, "Apply an offset of 36 dB to the reported value when prioritising the cells for reporting"},
    { 7, "Apply an offset of 42 dB to the reported value when prioritising the cells for reporting"},
    { 0, NULL }
};

/* The TS 45.008 is not that clear, but it should be understood: threshold = minimum reported value + 6 * resolution
 * The minimum reported value, resolution is, for the different access technologies:
 *  GSM:        -111 dBm, 1 dBm
 *  WCDMA/RSCP: -116 dBm, 1 dBm
 *  WCDMA/EcN0: -24.5 dB, 0.5 dB
 *  LTE/RSRP:   -140 dBm, 1 dB
 *  LTE/RSRQ:   -19.5 dB, 0.5 dB
 */
static const value_string gsm_a_rr_gsm_reporting_threshold_vals[] = {
    { 0, "Apply priority reporting if the reported value is above -111 dBm"},
    { 1, "Apply priority reporting if the reported value is above -105 dBm"},
    { 2, "Apply priority reporting if the reported value is above -99 dBm"},
    { 3, "Apply priority reporting if the reported value is above -93 dBm"},
    { 4, "Apply priority reporting if the reported value is above -87 dBm"},
    { 5, "Apply priority reporting if the reported value is above -81 dBm"},
    { 6, "Apply priority reporting if the reported value is above -75 dBm"},
    { 7, "Never apply priority reporting"},
    { 0, NULL }
};

static const value_string gsm_a_rr_wcdma_rscp_reporting_threshold_vals[] = {
    { 0, "Apply priority reporting if the reported value is above -116 dBm"},
    { 1, "Apply priority reporting if the reported value is above -110 dBm"},
    { 2, "Apply priority reporting if the reported value is above -104 dBm"},
    { 3, "Apply priority reporting if the reported value is above -98 dBm"},
    { 4, "Apply priority reporting if the reported value is above -92 dBm"},
    { 5, "Apply priority reporting if the reported value is above -86 dBm"},
    { 6, "Apply priority reporting if the reported value is above -80 dBm"},
    { 7, "Never apply priority reporting"},
    { 0, NULL }
};

static const value_string gsm_a_rr_wcdma_ecn0_reporting_threshold_vals[] = {
    { 0, "Apply priority reporting if the reported value is above -24.5 dB"},
    { 1, "Apply priority reporting if the reported value is above -21.5 dB"},
    { 2, "Apply priority reporting if the reported value is above -17.5 dB"},
    { 3, "Apply priority reporting if the reported value is above -14.5 dB"},
    { 4, "Apply priority reporting if the reported value is above -11.5 dB"},
    { 5, "Apply priority reporting if the reported value is above -8.5 dB"},
    { 6, "Apply priority reporting if the reported value is above -5.5 dB"},
    { 7, "Never apply priority reporting"},
    { 0, NULL }
};

static const value_string gsm_a_rr_lte_rsrp_reporting_threshold_vals[] = {
    { 0, "Apply priority reporting if the reported value is above -140 dBm"},
    { 1, "Apply priority reporting if the reported value is above -134 dBm"},
    { 2, "Apply priority reporting if the reported value is above -128 dBm"},
    { 3, "Apply priority reporting if the reported value is above -122 dBm"},
    { 4, "Apply priority reporting if the reported value is above -116 dBm"},
    { 5, "Apply priority reporting if the reported value is above -110 dBm"},
    { 6, "Apply priority reporting if the reported value is above -104 dBm"},
    { 7, "Never apply priority reporting"},
    { 0, NULL }
};

static const value_string gsm_a_rr_lte_rsrq_reporting_threshold_vals[] = {
    { 0, "Apply priority reporting if the reported value is above -19.5 dB"},
    { 1, "Apply priority reporting if the reported value is above -16.5 dB"},
    { 2, "Apply priority reporting if the reported value is above -13.5 dB"},
    { 3, "Apply priority reporting if the reported value is above -10.5 dB"},
    { 4, "Apply priority reporting if the reported value is above -7.5 dB"},
    { 5, "Apply priority reporting if the reported value is above -4.5 dB"},
    { 6, "Apply priority reporting if the reported value is above -1.5 dB"},
    { 7, "Never apply priority reporting"},
    { 0, NULL }
};

static const value_string gsm_a_rr_network_control_order_vals[] = {
    { 0, "NC0"},
    { 1, "NC1"},
    { 2, "NC2"},
    { 3, "NC0"},
    { 0, NULL }
};

static const value_string gsm_a_rr_nc_non_drx_period_vals[] = {
    { 0, "No non-DRX mode after a measurement report has been sent"},
    { 1, "0,24 s"},
    { 2, "0,48 s"},
    { 3, "0.72 s"},
    { 4, "0.96 s"},
    { 5, "1.20 s"},
    { 6, "1.44 s"},
    { 7, "1.92 s"},
    { 0, NULL }
};

static const value_string gsm_a_rr_nc_reporting_period_x_vals[] = {
    { 0, "0.48 s"},
    { 1, "0.96 s"},
    { 2, "1.92 s"},
    { 3, "3.84 s"},
    { 4, "7.68 s"},
    { 5, "15.36 s"},
    { 6, "30.72 s"},
    { 7, "61.44 s"},
    { 0, NULL }
};

static const true_false_string gsm_a_rr_qsearch_c_initial_value = {
    "Always",
    "use Qsearch I"
};

static const true_false_string gsm_a_rr_fdd_rep_quant_value = {
    "Ec/No",
    "RSCP"
};

static const true_false_string gsm_a_rr_3g_search_prio_value = {
    "3G cells may be searched when BSIC decoding is required",
    "3G cells may not be searched when BSIC decoding is required"
};

static const true_false_string gsm_a_rr_3g_ccn_active_value = {
    "CCN towards 3G cells is enabled in the cell",
    "CCN towards 3G cells is disabled in the cell"
};

static int
de_rr_si2quater_meas_info_utran_fdd_desc(tvbuff_t *tvb, proto_tree *tree, int bit_offset)
{
    proto_tree *subtree, *subtree2;
    proto_item *item, *item2;
    int         curr_bit_offset, idx;
    int         xdd_cell_info, wsize, nwi, jwi, w[64], i, iused, xdd_indic0;

    curr_bit_offset = bit_offset;

    subtree = proto_tree_add_subtree(tree, tvb, curr_bit_offset>>3, -1, ett_gsm_rr_rest_octets_elem[DE_RR_REST_OCTETS_UTRAN_FDD_DESC], &item,
                            gsm_rr_rest_octets_elem_strings[DE_RR_REST_OCTETS_UTRAN_FDD_DESC]);
    if (gsm_rr_csn_flag(tvb, subtree, curr_bit_offset++, hf_gsm_a_rr_bandwidth_fdd_present))
    {
        proto_tree_add_bits_item(subtree, hf_gsm_a_rr_bandwidth_fdd, tvb, curr_bit_offset, 3, ENC_BIG_ENDIAN);
        curr_bit_offset += 3;
    }
    while (gsm_rr_csn_flag(tvb, subtree, curr_bit_offset++, hf_gsm_a_rr_repeated_umts_fdd_neighbour_cells))
    {
        proto_tree_add_bits_item(subtree, hf_gsm_a_rr_repeated_umts_fdd_neighbour_cells_earlier_version_bit_reserved, tvb, curr_bit_offset++, 1, ENC_NA);
        proto_tree_add_bits_item(subtree, hf_gsm_a_rr_fdd_uarfcn, tvb, curr_bit_offset, 14, ENC_BIG_ENDIAN);
        curr_bit_offset += 14;
        xdd_indic0 = gsm_rr_csn_flag(tvb, subtree, curr_bit_offset++, hf_gsm_a_rr_fdd_cell_info_param_value0);
        idx = tvb_get_bits8(tvb,curr_bit_offset,5);
        proto_tree_add_uint(subtree, hf_gsm_a_rr_nr_of_fdd_cells, tvb, curr_bit_offset>>3, 1, idx);
        curr_bit_offset += 5;
        idx = convert_n_to_p[idx];
        subtree2 = proto_tree_add_subtree(subtree,tvb, curr_bit_offset>>3, (idx>>3)+1, ett_gsm_rr_rest_octets_elem[DE_RR_REST_OCTETS_FDD_CELL_INFORMATION_FIELD], &item2,
                                            gsm_rr_rest_octets_elem_strings[DE_RR_REST_OCTETS_UTRAN_FDD_DESC]);
        proto_tree_add_bytes_format(subtree2, hf_gsm_a_rr_field_bit_long, tvb, curr_bit_offset>>3, (idx>>3)+1, NULL, "Field is %d bits long", idx);
        if (xdd_indic0)
        {
            proto_tree_add_uint(subtree2, hf_gsm_a_rr_scrambling_code, tvb, curr_bit_offset>>3, 0, 0);
            proto_tree_add_uint(subtree2, hf_gsm_a_rr_diversity, tvb, curr_bit_offset>>3, 0, 0);
        }
        if (idx)
        {
            wsize = 10;
            nwi = 1;
            jwi = 0;
            i = 1;

            while (idx > 0)
            {
                w[i] = tvb_get_bits32(tvb, curr_bit_offset, wsize, ENC_BIG_ENDIAN);
                curr_bit_offset += wsize;
                idx -= wsize;
                if (w[i] == 0)
                {
                    idx = 0;
                    break;
                }
                if (++jwi == nwi)
                {
                    jwi = 0;
                    nwi <<= 1;
                    wsize--;
                }
                i++;
            }
            if (idx < 0)
            {
                curr_bit_offset += idx;
            }
            iused = i-1;

            for (i=1; i <= iused; i++)
            {
                xdd_cell_info = f_k(i, w, 1024);
                proto_tree_add_uint(subtree2, hf_gsm_a_rr_scrambling_code, tvb, curr_bit_offset>>3, 0, xdd_cell_info & 0x01FF);
                proto_tree_add_uint(subtree2, hf_gsm_a_rr_diversity, tvb, curr_bit_offset>>3, 0, (xdd_cell_info >> 9) & 0x01);
            }
        }
    }
    proto_item_set_len(item,((curr_bit_offset>>3) - (bit_offset>>3) + 1));

    return (curr_bit_offset - bit_offset);
}

static int
de_rr_si2quater_meas_info_utran_tdd_desc(tvbuff_t *tvb, proto_tree *tree, int bit_offset)
{
    proto_tree *subtree, *subtree2;
    proto_item *item;
    int         curr_bit_offset, idx;
    int         xdd_cell_info, wsize, nwi, jwi, w[64], i, iused, xdd_indic0;

    curr_bit_offset = bit_offset;

    subtree = proto_tree_add_subtree(tree, tvb, curr_bit_offset>>3, -1, ett_gsm_rr_rest_octets_elem[DE_RR_REST_OCTETS_UTRAN_TDD_DESC], &item,
                                gsm_rr_rest_octets_elem_strings[DE_RR_REST_OCTETS_UTRAN_TDD_DESC]);
    if (gsm_rr_csn_flag(tvb, subtree, curr_bit_offset++, hf_gsm_a_rr_bandwidth_tdd_present))
    {
        proto_tree_add_bits_item(subtree, hf_gsm_a_rr_bandwidth_tdd, tvb, curr_bit_offset, 3, ENC_BIG_ENDIAN);
        curr_bit_offset += 3;
    }
    while (gsm_rr_csn_flag(tvb, subtree, curr_bit_offset++, hf_gsm_a_rr_repeated_umts_tdd_neighbour_cells))
    {
        proto_tree_add_bits_item(subtree, hf_gsm_a_rr_repeated_umts_tdd_neighbour_cells_earlier_version_bit_reserved, tvb, curr_bit_offset++, 1, ENC_NA);
        proto_tree_add_bits_item(subtree, hf_gsm_a_rr_tdd_uarfcn, tvb, curr_bit_offset, 14, ENC_BIG_ENDIAN);
        curr_bit_offset += 14;
        xdd_indic0 = gsm_rr_csn_flag(tvb, subtree, curr_bit_offset++, hf_gsm_a_rr_tdd_cell_info_param_value0);
        idx = tvb_get_bits8(tvb,curr_bit_offset,5);
        proto_tree_add_uint(subtree, hf_gsm_a_rr_nr_of_tdd_cells, tvb, curr_bit_offset>>3, 1, idx);
        curr_bit_offset += 5;
        idx = convert_n_to_q[idx];
        subtree2 = proto_tree_add_subtree(subtree,tvb, curr_bit_offset>>3, (idx>>3)+1, ett_gsm_rr_rest_octets_elem[DE_RR_REST_OCTETS_TDD_CELL_INFORMATION_FIELD], &item,
                                        gsm_rr_rest_octets_elem_strings[DE_RR_REST_OCTETS_UTRAN_TDD_DESC]);
        proto_tree_add_bytes_format(subtree2, hf_gsm_a_rr_field_bit_long, tvb, curr_bit_offset>>3, (idx>>3)+1, NULL, "Field is %d bits long", idx);
        if (xdd_indic0)
        {
            proto_tree_add_uint(subtree2, hf_gsm_a_rr_cell_parameter, tvb, curr_bit_offset>>3, 0, 0);
            proto_tree_add_uint(subtree2, hf_gsm_a_rr_sync_case_tstd, tvb, curr_bit_offset>>3, 0, 0);
            proto_tree_add_uint(subtree2, hf_gsm_a_rr_diversity_tdd, tvb, curr_bit_offset>>3, 0, 0);
        }
        if (idx)
        {
            wsize = 9;
            nwi = 1;
            jwi = 0;
            i = 1;

            while (idx > 0)
            {
                w[i] = tvb_get_bits32(tvb, curr_bit_offset, wsize, ENC_BIG_ENDIAN);
                curr_bit_offset += wsize;
                idx -= wsize;
                if (w[i] == 0)
                {
                    idx = 0;
                    break;
                }
                if (++jwi == nwi)
                {
                    jwi = 0;
                    nwi <<= 1;
                    wsize--;
                }
                i++;
            }
            if (idx < 0)
            {
                curr_bit_offset += idx;
            }
            iused = i-1;

            for (i=1; i <= iused; i++)
            {
                xdd_cell_info = f_k(i, w, 512);
                proto_tree_add_uint(subtree2, hf_gsm_a_rr_cell_parameter, tvb, curr_bit_offset>>3, 0, xdd_cell_info & 0x07F);
                proto_tree_add_uint(subtree2, hf_gsm_a_rr_sync_case_tstd, tvb, curr_bit_offset>>3, 0, (xdd_cell_info >> 7) & 0x01);
                proto_tree_add_uint(subtree2, hf_gsm_a_rr_diversity_tdd, tvb, curr_bit_offset>>3, 0, (xdd_cell_info >> 8) & 0x01);
            }
        }
    }
    proto_item_set_len(item,((curr_bit_offset>>3) - (bit_offset>>3) + 1));

    return (curr_bit_offset - bit_offset);
}

static int
de_rr_rtd_desc(tvbuff_t *tvb, proto_tree *tree, int bit_offset, rr_rest_octets_elem_idx_t id)
{
    proto_tree *subtree;
    proto_item *item;
    int         curr_bit_offset, idx;
    uint8_t     value;

    curr_bit_offset = bit_offset;

    subtree = proto_tree_add_subtree(tree, tvb, curr_bit_offset>>3, -1, ett_gsm_rr_rest_octets_elem[id], &item,
                                    gsm_rr_rest_octets_elem_strings[id]);
    if (gsm_rr_csn_flag(tvb, subtree, curr_bit_offset++, hf_gsm_a_rr_rtd6))
    {
        if (gsm_rr_csn_flag(tvb, subtree, curr_bit_offset++, hf_gsm_a_rr_ba_index_start_rtd_present))
        {
            idx = tvb_get_bits8(tvb,curr_bit_offset,5);
            proto_tree_add_uint(subtree, hf_gsm_a_rr_ba_index_start_rtd, tvb, curr_bit_offset>>3, 1, idx);
            curr_bit_offset += 5;
        }
        else
            idx = 0;

        value = gsm_rr_csn_flag(tvb, subtree, curr_bit_offset++, hf_gsm_a_rr_rtd);
        while (value == 0)
        { /* all the RTDs on the first frequency */
            proto_tree_add_uint_format(subtree, hf_gsm_a_rr_rtd_index, tvb, curr_bit_offset>>3, 1, tvb_get_bits8(tvb,curr_bit_offset,6),
                "RTD index %d: %d TDMA frame(s) modulo 51 TDMA frames", idx, tvb_get_bits8(tvb,curr_bit_offset,6));
            curr_bit_offset += 6;
            value = gsm_rr_csn_flag(tvb, subtree, curr_bit_offset++, hf_gsm_a_rr_additional_rtd);
        }

        value = gsm_rr_csn_flag(tvb, subtree, curr_bit_offset++, hf_gsm_a_rr_additional_rtd_struct);
        while(value == 0)
        { /* all other frequencies */
            idx += 1;
            value = gsm_rr_csn_flag(tvb, subtree, curr_bit_offset++, hf_gsm_a_rr_rtd);
            while (value == 0)
            { /* all the RTDs on the first frequency */
                proto_tree_add_uint_format(subtree, hf_gsm_a_rr_rtd_index, tvb, curr_bit_offset>>3, 1, tvb_get_bits8(tvb,curr_bit_offset,6),
                            "RTD index %d: %d TDMA frame(s) modulo 51 TDMA frames", idx, tvb_get_bits8(tvb,curr_bit_offset,6));
                curr_bit_offset += 6;
                value = gsm_rr_csn_flag(tvb, subtree, curr_bit_offset++, hf_gsm_a_rr_additional_rtd);
            }
            value = gsm_rr_csn_flag(tvb, subtree, curr_bit_offset++, hf_gsm_a_rr_additional_rtd_struct);
        }
    }
    if (gsm_rr_csn_flag(tvb, subtree, curr_bit_offset++, hf_gsm_a_rr_rtd12))
    {
       if (gsm_rr_csn_flag(tvb, subtree, curr_bit_offset++, hf_gsm_a_rr_rtd12))
       {
           if (gsm_rr_csn_flag(tvb, subtree, curr_bit_offset++, hf_gsm_a_rr_ba_index_start_rtd_present))
           {
               idx = tvb_get_bits8(tvb,curr_bit_offset,5);
               proto_tree_add_uint(subtree, hf_gsm_a_rr_ba_index_start_rtd, tvb, curr_bit_offset>>3, 1, idx);
               curr_bit_offset += 5;
           }
           else
               idx = 0;

           while (0 == gsm_rr_csn_flag(tvb, subtree, curr_bit_offset++, hf_gsm_a_rr_repeated_rtd))
           { /* all the RTDs on the first frequency */
               proto_tree_add_uint_format(subtree, hf_gsm_a_rr_rtd_index, tvb, curr_bit_offset>>3, 2, tvb_get_bits16(tvb,curr_bit_offset,12,ENC_BIG_ENDIAN),
                        "RTD index %d: %d/64 TDMA frame(s) modulo 51 TDMA frames", idx, tvb_get_bits16(tvb,curr_bit_offset,12,ENC_BIG_ENDIAN));
               curr_bit_offset += 12;
           }

           while(0 == gsm_rr_csn_flag(tvb, subtree, curr_bit_offset++, hf_gsm_a_rr_repeated_rtd_frequency))
           { /* all other frequencies */
               idx += 1;
               while (0 == gsm_rr_csn_flag(tvb, subtree, curr_bit_offset++, hf_gsm_a_rr_repeated_rtd))
               { /* all the RTDs on the first frequency */
                   proto_tree_add_uint_format(subtree, hf_gsm_a_rr_rtd_index, tvb, curr_bit_offset>>3, 2, tvb_get_bits16(tvb,curr_bit_offset,12,ENC_BIG_ENDIAN),
                        "RTD index %d: %d/64 TDMA frame(s) modulo 51 TDMA frames", idx, tvb_get_bits16(tvb,curr_bit_offset,12,ENC_BIG_ENDIAN));
                   curr_bit_offset += 12;
               }
           }
       }
    }
    proto_item_set_len(item,((curr_bit_offset>>3) - (bit_offset>>3) + 1));

    return (curr_bit_offset - bit_offset);
}

static int
de_rr_bsic_desc(tvbuff_t *tvb, proto_tree *tree, int bit_offset, rr_rest_octets_elem_idx_t id)
{
    proto_tree *subtree;
    proto_item *item;
    int         curr_bit_offset, idx;

    curr_bit_offset = bit_offset;
    subtree = proto_tree_add_subtree(tree, tvb, curr_bit_offset>>3, -1, ett_gsm_rr_rest_octets_elem[id], &item, gsm_rr_rest_octets_elem_strings[id]);
    if (gsm_rr_csn_flag(tvb, subtree, curr_bit_offset++, hf_gsm_a_rr_ba_index_start_bsic_present))
    {
        proto_tree_add_bits_item(subtree, hf_gsm_a_rr_ba_index_start_bsic, tvb, curr_bit_offset, 5, ENC_BIG_ENDIAN);
        curr_bit_offset += 5;
    }
    proto_tree_add_bits_item(subtree, hf_gsm_a_rr_bsic, tvb, curr_bit_offset, 6, ENC_BIG_ENDIAN);
    curr_bit_offset += 6;
    idx = tvb_get_bits8(tvb,curr_bit_offset,7);
    proto_tree_add_uint(subtree, hf_gsm_a_rr_number_remaining_bsic, tvb, curr_bit_offset>>3, 1, idx);
    curr_bit_offset += 7;
    while (idx)
    {
        proto_tree_add_bits_item(subtree, hf_gsm_a_rr_frequency_scrolling, tvb, curr_bit_offset, 1, ENC_BIG_ENDIAN);
        curr_bit_offset += 1;
        proto_tree_add_bits_item(subtree, hf_gsm_a_rr_bsic, tvb, curr_bit_offset, 6, ENC_BIG_ENDIAN);
        curr_bit_offset += 6;
        idx -= 1;
    }
    proto_item_set_len(item,((curr_bit_offset>>3) - (bit_offset>>3) + 1));

    return curr_bit_offset - bit_offset;
}

static int
de_rr_report_priority_desc(tvbuff_t *tvb, proto_tree *tree, int bit_offset, rr_rest_octets_elem_idx_t id)
{
    proto_tree *subtree;
    proto_item *item;
    int         curr_bit_offset, idx;

    curr_bit_offset = bit_offset;

    subtree = proto_tree_add_subtree(tree, tvb, curr_bit_offset>>3, -1, ett_gsm_rr_rest_octets_elem[id], &item,
                                gsm_rr_rest_octets_elem_strings[id]);
    idx = tvb_get_bits8(tvb,curr_bit_offset,7);
    proto_tree_add_uint(subtree, hf_gsm_a_rr_number_cells, tvb, curr_bit_offset>>3, 1, idx);
    curr_bit_offset += 7;
    while (idx)
    {
        proto_tree_add_bits_item(subtree, hf_gsm_a_rr_rep_priority, tvb, curr_bit_offset, 1, ENC_BIG_ENDIAN);
        curr_bit_offset += 1;
        idx -= 1;
    }
    proto_item_set_len(item,((curr_bit_offset>>3) - (bit_offset>>3) + 1));

    return curr_bit_offset - bit_offset;
}

static int
de_rr_meas_param_desc(tvbuff_t *tvb, proto_tree *tree, int bit_offset, rr_rest_octets_elem_idx_t id)
{
    proto_tree *subtree;
    proto_item *item;
    int         curr_bit_offset;

    curr_bit_offset = bit_offset;
    subtree = proto_tree_add_subtree(tree, tvb, curr_bit_offset>>3, -1, ett_gsm_rr_rest_octets_elem[id], &item, gsm_rr_rest_octets_elem_strings[id]);
    if (id == DE_RR_REST_OCTETS_GPRS_MEAS_PARAM_DESC)
    {
        proto_tree_add_bits_item(subtree, hf_gsm_a_rr_report_type, tvb, curr_bit_offset, 1, ENC_BIG_ENDIAN);
        curr_bit_offset += 1;
        proto_tree_add_bits_item(subtree, hf_gsm_a_rr_reporting_rate, tvb, curr_bit_offset, 1, ENC_BIG_ENDIAN);
        curr_bit_offset +=1;
        proto_tree_add_bits_item(subtree, hf_gsm_a_rr_invalid_bsic_reporting, tvb, curr_bit_offset, 1, ENC_BIG_ENDIAN);
        curr_bit_offset +=1;
    }
    if (gsm_rr_csn_flag(tvb, subtree, curr_bit_offset++, hf_gsm_a_rr_multiband_reporting_present))
    {
        proto_tree_add_bits_item(subtree, hf_gsm_a_rr_multiband_reporting, tvb, curr_bit_offset, 2, ENC_BIG_ENDIAN);
        curr_bit_offset += 2;
    }
    if (gsm_rr_csn_flag(tvb, subtree, curr_bit_offset++, hf_gsm_a_rr_serving_reporting_present))
    {
        proto_tree_add_bits_item(subtree, hf_gsm_a_rr_serving_band_reporting, tvb, curr_bit_offset, 2, ENC_BIG_ENDIAN);
        curr_bit_offset += 2;
    }
    proto_tree_add_bits_item(subtree, hf_gsm_a_rr_scale_ord, tvb, curr_bit_offset, 2, ENC_BIG_ENDIAN);
    curr_bit_offset += 2;
    if (gsm_rr_csn_flag(tvb, subtree, curr_bit_offset++, hf_gsm_a_rr_900_reporting_present))
    {
        proto_tree_add_bits_item(subtree, hf_gsm_a_rr_900_reporting_offset, tvb, curr_bit_offset, 3, ENC_BIG_ENDIAN);
        curr_bit_offset += 3;
        proto_tree_add_bits_item(subtree, hf_gsm_a_rr_900_reporting_threshold, tvb, curr_bit_offset, 3, ENC_BIG_ENDIAN);
        curr_bit_offset += 3;
    }
    if (gsm_rr_csn_flag(tvb, subtree, curr_bit_offset++, hf_gsm_a_rr_1800_reporting_present))
    {
        proto_tree_add_bits_item(subtree, hf_gsm_a_rr_1800_reporting_offset, tvb, curr_bit_offset, 3, ENC_BIG_ENDIAN);
        curr_bit_offset += 3;
        proto_tree_add_bits_item(subtree, hf_gsm_a_rr_1800_reporting_threshold, tvb, curr_bit_offset, 3, ENC_BIG_ENDIAN);
        curr_bit_offset += 3;
    }
    if (gsm_rr_csn_flag(tvb, subtree, curr_bit_offset++, hf_gsm_a_rr_400_reporting_present))
    {
        proto_tree_add_bits_item(subtree, hf_gsm_a_rr_400_reporting_offset, tvb, curr_bit_offset, 3, ENC_BIG_ENDIAN);
        curr_bit_offset += 3;
        proto_tree_add_bits_item(subtree, hf_gsm_a_rr_400_reporting_threshold, tvb, curr_bit_offset, 3, ENC_BIG_ENDIAN);
        curr_bit_offset += 3;
    }
    if (gsm_rr_csn_flag(tvb, subtree, curr_bit_offset++, hf_gsm_a_rr_1900_reporting_present))
    {
        proto_tree_add_bits_item(subtree, hf_gsm_a_rr_1900_reporting_offset, tvb, curr_bit_offset, 3, ENC_BIG_ENDIAN);
        curr_bit_offset += 3;
        proto_tree_add_bits_item(subtree, hf_gsm_a_rr_1900_reporting_threshold, tvb, curr_bit_offset, 3, ENC_BIG_ENDIAN);
        curr_bit_offset += 3;
    }
    if (gsm_rr_csn_flag(tvb, subtree, curr_bit_offset++, hf_gsm_a_rr_850_reporting_present))
    {
        proto_tree_add_bits_item(subtree, hf_gsm_a_rr_850_reporting_offset, tvb, curr_bit_offset, 3, ENC_BIG_ENDIAN);
        curr_bit_offset += 3;
        proto_tree_add_bits_item(subtree, hf_gsm_a_rr_850_reporting_threshold, tvb, curr_bit_offset, 3, ENC_BIG_ENDIAN);
        curr_bit_offset += 3;
    }
    proto_item_set_len(item,((curr_bit_offset>>3) - (bit_offset>>3) + 1));

    return curr_bit_offset - bit_offset;
}

static int
de_rr_3g_add_meas_param_desc2(tvbuff_t *tvb, proto_tree *tree, int bit_offset)
{
    proto_tree *subtree;
    proto_item *item;
    int         curr_bit_offset;

    curr_bit_offset = bit_offset;
    subtree = proto_tree_add_subtree(tree, tvb, curr_bit_offset>>3, -1, ett_gsm_rr_rest_octets_elem[DE_RR_REST_OCTETS_3G_ADD_MEAS_PARAM_DESC2], &item,
                                gsm_rr_rest_octets_elem_strings[DE_RR_REST_OCTETS_3G_ADD_MEAS_PARAM_DESC2]);
    if (gsm_rr_csn_flag(tvb, subtree, curr_bit_offset++, hf_gsm_a_rr_fdd_reporting_threshold_2_present))
    {
        proto_tree_add_bits_item(subtree, hf_gsm_a_rr_fdd_reporting_threshold_2, tvb, curr_bit_offset, 6, ENC_BIG_ENDIAN);
        curr_bit_offset += 6;
    }
    proto_item_set_len(item,((curr_bit_offset>>3) - (bit_offset>>3) + 1));

    return curr_bit_offset - bit_offset;
}

/* Additions in Rel-8 */
static const true_false_string priority_utran_start = {
    "This is the first instance of the message",
    "This is not the first instance of the message"
};

static const true_false_string priority_utran_stop = {
    "This is the last instance of the message",
    "This is not the last instance of the message"
};

static const true_false_string eutran_ccn_active = {
    "CCN towards E-UTRAN cells is enabled in the cell",
    "The broadcast E-UTRAN_CCN_ACTIVE parameter shall apply if applicable. Otherwise, CCN towards E-UTRAN cells is disabled in the cell"
};

#if 0
static const true_false_string eutran_rep_quant = {
    "RSRQ",
    "RSRP"
};
#endif

static const value_string gsm_a_rr_pcid_psc_pattern_length[] = {
    { 0, "1"},
    { 1, "2"},
    { 2, "3"},
    { 3, "4"},
    { 4, "5"},
    { 5, "6"},
    { 6, "7"},
    { 7, "8"},
    { 0, NULL }
};

static const value_string gsm_a_rr_eutran_measurement_bandwidth[] = {
    { 0, "NRB = 6"},
    { 1, "NRB = 15"},
    { 2, "NRB = 25"},
    { 3, "NRB = 50"},
    { 4, "NRB = 75"},
    { 5, "NRB = 100"},
    { 6, "Reserved for future use"},
    { 7, "Reserved for future use"},
    { 0, NULL }
};

static const value_string gsm_a_rr_serving_cell_thresh_gsm_low[] = {
    { 0, "0 dB"},
    { 1, "2 dB"},
    { 2, "4 dB"},
    { 3, "6 dB"},
    { 4, "8 dB"},
    { 5, "10 dB"},
    { 6, "12 dB"},
    { 7, "14 dB"},
    { 8, "16 dB"},
    { 9, "18 dB"},
    {10, "20 dB"},
    {11, "22 dB"},
    {12, "24 dB"},
    {13, "26 dB"},
    {14, "28 dB"},
    {15, "Always allowed"},
    { 0, NULL }
};

static const value_string gsm_a_rr_serving_cell_thresh_priority_search[] = {
    { 0, "-98 dBm"},
    { 1, "-95 dBm"},
    { 2, "-92 dBm"},
    { 3, "-89 dBm"},
    { 4, "-86 dBm"},
    { 5, "-83 dBm"},
    { 6, "-80 dBm"},
    { 7, "-77 dBm"},
    { 8, "-74 dBm"},
    { 9, "-71 dBm"},
    {10, "-68 dBm"},
    {11, "-65 dBm"},
    {12, "-62 dBm"},
    {13, "-59 dBm"},
    {14, "-56 dBm"},
    {15, "Always search"},
    { 0, NULL }
};

static const value_string gsm_a_rr_utran_qrxlevmin[] = {
    { 0, "-119 dBm"},
    { 1, "-117 dBm"},
    { 2, "-115 dBm"},
    { 3, "-113 dBm"},
    { 4, "-111 dBm"},
    { 5, "-109 dBm"},
    { 6, "-107 dBm"},
    { 7, "-105 dBm"},
    { 8, "-103 dBm"},
    { 9, "-101 dBm"},
    {10, "-99 dBm"},
    {11, "-97 dBm"},
    {12, "-95 dBm"},
    {13, "-93 dBm"},
    {14, "-91 dBm"},
    {15, "-89 dBm"},
    {16, "-87 dBm"},
    {17, "-85 dBm"},
    {18, "-83 dBm"},
    {19, "-81 dBm"},
    {20, "-79 dBm"},
    {21, "-77 dBm"},
    {22, "-75 dBm"},
    {23, "-73 dBm"},
    {24, "-71 dBm"},
    {25, "-69 dBm"},
    {26, "-67 dBm"},
    {27, "-65 dBm"},
    {28, "-63 dBm"},
    {29, "-61 dBm"},
    {30, "-59 dBm"},
    {31, "-57 dBm"},
    { 0, NULL }
};

static const value_string gsm_a_rr_thresh_utran_eutran_high_low[] = {
    { 0, "0 dB"},
    { 1, "2 dB"},
    { 2, "4 dB"},
    { 3, "6 dB"},
    { 4, "8 dB"},
    { 5, "10 dB"},
    { 6, "12 dB"},
    { 7, "14 dB"},
    { 8, "16 dB"},
    { 9, "18 dB"},
    {10, "20 dB"},
    {11, "22 dB"},
    {12, "24 dB"},
    {13, "26 dB"},
    {14, "28 dB"},
    {15, "30 dB"},
    {16, "32 dB"},
    {17, "34 dB"},
    {18, "36 dB"},
    {19, "38 dB"},
    {20, "40 dB"},
    {21, "42 dB"},
    {22, "44 dB"},
    {23, "46 dB"},
    {24, "48 dB"},
    {25, "50 dB"},
    {26, "52 dB"},
    {27, "54 dB"},
    {28, "56 dB"},
    {29, "58 dB"},
    {30, "60 dB"},
    {31, "62 dB"},
    { 0, NULL }
};

static const value_string gsm_a_rr_eutran_qrxlevmin[] = {
    { 0, "-140 dBm"},
    { 1, "-138 dBm"},
    { 2, "-136 dBm"},
    { 3, "-134 dBm"},
    { 4, "-132 dBm"},
    { 5, "-130 dBm"},
    { 6, "-128 dBm"},
    { 7, "-126 dBm"},
    { 8, "-124 dBm"},
    { 9, "-122 dBm"},
    {10, "-120 dBm"},
    {11, "-118 dBm"},
    {12, "-116 dBm"},
    {13, "-114 dBm"},
    {14, "-112 dBm"},
    {15, "-110 dBm"},
    {16, "-108 dBm"},
    {17, "-106 dBm"},
    {18, "-104 dBm"},
    {19, "-102 dBm"},
    {20, "-100 dBm"},
    {21, "-98 dBm"},
    {22, "-96 dBm"},
    {23, "-94 dBm"},
    {24, "-92 dBm"},
    {25, "-90 dBm"},
    {26, "-88 dBm"},
    {27, "-86 dBm"},
    {28, "-84 dBm"},
    {29, "-82 dBm"},
    {30, "-80 dBm"},
    {31, "-78 dBm"},
    { 0, NULL }
};

static const value_string gsm_a_rr_serving_cell_priority_param_h_prio[] = {
    { 0, "disabled"},
    { 1, "5 dB"},
    { 2, "4 dB"},
    { 3, "3 dB"},
    { 0, NULL }
};

static const value_string gsm_a_rr_serving_cell_priority_param_t_reselection[] = {
    { 0, "5 s"},
    { 1, "10 s"},
    { 2, "15 s"},
    { 3, "20 s"},
    { 0, NULL }
};

static const value_string gsm_a_rr_qsearch_c_eutran_initial[] = {
    { 0, "search if signal is below -98 dBm"},
    { 1, "search if signal is below -94 dBm"},
    { 2, "search if signal is below -90 dBm"},
    { 3, "search if signal is below -86 dBm"},
    { 4, "search if signal is below -82 dBm"},
    { 5, "search if signal is below -78 dBm"},
    { 6, "search if signal is below -74 dBm"},
    { 7, "always search"},
    { 8, "search is signal is above -78 dBm"},
    { 9, "search is signal is above -74 dBm"},
    {10, "search is signal is above -70 dBm"},
    {11, "search is signal is above -66 dBm"},
    {12, "search is signal is above -62 dBm"},
    {13, "search is signal is above -58 dBm"},
    {14, "search is signal is above -54 dBm"},
    {15, "never search"},
    { 0, NULL }
};

static const true_false_string gsm_a_rr_pcid_pattern_sense = {
    "The group of identified cells are the one not belonging to the PCID_BITMAP_GROUP",
    "The group of identified cells are the one identified by the PCID_BITMAP_GROUP"
};

static const true_false_string measurement_control_utran = {
    "Frequency-specific search enabled: use Qsearch_C_E-UTRAN if received, otherwise use Qsearch_C_EUTRAN_Initial",
    "Frequency-specific search enabled: Never search"
};

static const true_false_string measurement_control_eutran = {
    "Frequency-specific search enabled: use Qsearch_C if received, otherwise use Qsearch_C_Initial",
    "Frequency-specific search enabled: Never search"
};

static int
de_rr_3g_priority_param_desc(tvbuff_t *tvb, proto_tree *tree, int bit_offset)
{
    proto_tree *subtree;
    proto_item *item;
    int         curr_bit_offset;

    curr_bit_offset = bit_offset;
    subtree = proto_tree_add_subtree(tree, tvb, curr_bit_offset>>3, -1, ett_gsm_rr_rest_octets_elem[DE_RR_REST_OCTETS_3G_PRIORITY_PARAM_DESC], &item,
                                gsm_rr_rest_octets_elem_strings[DE_RR_REST_OCTETS_3G_PRIORITY_PARAM_DESC]);

    proto_tree_add_bits_item(subtree, hf_gsm_a_rr_3g_priority_param_desc_utran_start, tvb, curr_bit_offset, 1, ENC_BIG_ENDIAN);
    curr_bit_offset += 1;
    proto_tree_add_bits_item(subtree, hf_gsm_a_rr_3g_priority_param_desc_utran_stop, tvb, curr_bit_offset, 1, ENC_BIG_ENDIAN);
    curr_bit_offset += 1;

    if (gsm_rr_csn_flag(tvb, subtree, curr_bit_offset++, hf_gsm_a_rr_default_utran_priority_parameters))
    {
        proto_tree_add_bits_item(subtree, hf_gsm_a_rr_3g_priority_param_desc_default_utran_prio, tvb, curr_bit_offset, 3, ENC_BIG_ENDIAN);
        curr_bit_offset += 3;
        proto_tree_add_bits_item(subtree, hf_gsm_a_rr_3g_priority_param_desc_default_threshold_utran, tvb, curr_bit_offset, 5, ENC_BIG_ENDIAN);
        curr_bit_offset += 5;
        proto_tree_add_bits_item(subtree, hf_gsm_a_rr_3g_priority_param_desc_default_utran_qrxlevmin, tvb, curr_bit_offset, 5, ENC_BIG_ENDIAN);
        curr_bit_offset += 5;
    }
    /* Repeated UTRAN Priority Parameters */
    while (gsm_rr_csn_flag(tvb, subtree, curr_bit_offset++, hf_gsm_a_rr_repeated_utran_priority_parameters))
    {
        proto_tree *subtree_rep_utran_prio;
        proto_item *item_rep_utran_prio;
        int rep_utran_prio_bit_offset = curr_bit_offset;

        subtree_rep_utran_prio = proto_tree_add_subtree(subtree, tvb, curr_bit_offset>>3, 1, ett_gsm_rr_rest_octets_elem[DE_RR_REST_OCTETS_UTRAN_PRIO_PARAM], &item_rep_utran_prio,
                                                gsm_rr_rest_octets_elem_strings[DE_RR_REST_OCTETS_UTRAN_PRIO_PARAM]);

        while (gsm_rr_csn_flag(tvb, subtree, curr_bit_offset++, hf_gsm_a_rr_utran_frequency_index_present))
        {
            proto_tree_add_bits_item(subtree_rep_utran_prio, hf_gsm_a_rr_utran_frequency_index, tvb, curr_bit_offset, 5, ENC_BIG_ENDIAN);
            curr_bit_offset += 5;
        }

        if (gsm_rr_csn_flag(tvb, subtree, curr_bit_offset++, hf_gsm_a_rr_utran_priority_present))
        {
            proto_tree_add_bits_item(subtree_rep_utran_prio, hf_gsm_a_rr_utran_priority, tvb, curr_bit_offset, 3, ENC_BIG_ENDIAN);
            curr_bit_offset += 3;
        }
        proto_tree_add_bits_item(subtree_rep_utran_prio, hf_gsm_a_rr_thresh_utran_high, tvb, curr_bit_offset, 5, ENC_BIG_ENDIAN);
        curr_bit_offset += 5;

        if (gsm_rr_csn_flag(tvb, subtree, curr_bit_offset++, hf_gsm_a_rr_thresh_utran_low_present))
        {
            proto_tree_add_bits_item(subtree_rep_utran_prio, hf_gsm_a_rr_thresh_utran_low, tvb, curr_bit_offset, 5, ENC_BIG_ENDIAN);
            curr_bit_offset += 5;
        }

        if (gsm_rr_csn_flag(tvb, subtree, curr_bit_offset++, hf_gsm_a_rr_utran_qrxlevmin_present))
        {
            proto_tree_add_bits_item(subtree_rep_utran_prio, hf_gsm_a_rr_utran_qrxlevmin, tvb, curr_bit_offset, 5, ENC_BIG_ENDIAN);
            curr_bit_offset += 5;
        }
        proto_item_set_len(item_rep_utran_prio, (curr_bit_offset>>3) - (rep_utran_prio_bit_offset>>3)+1);
    }
    proto_item_set_len(item,((curr_bit_offset>>3) - (bit_offset>>3) + 1));

    return curr_bit_offset - bit_offset;
}

static int
de_rr_eutran_neighbour_cells(tvbuff_t *tvb, proto_tree *tree, int bit_offset)
{
    proto_tree *subtree;
    proto_item *item;
    int         curr_bit_offset;

    curr_bit_offset = bit_offset;
    subtree = proto_tree_add_subtree(tree, tvb, curr_bit_offset>>3, -1, ett_gsm_rr_rest_octets_elem[DE_RR_REST_OCTETS_EUTRAN_NEIGHBOUR_CELLS], &item,
                        gsm_rr_rest_octets_elem_strings[DE_RR_REST_OCTETS_EUTRAN_NEIGHBOUR_CELLS]);

    while (gsm_rr_csn_flag(tvb, subtree, curr_bit_offset++, hf_gsm_a_rr_eutran_earfcn_present))
    {
        proto_tree_add_bits_item(subtree, hf_gsm_a_rr_eutran_earfcn, tvb, curr_bit_offset, 16, ENC_BIG_ENDIAN);
        curr_bit_offset += 16;

        if (gsm_rr_csn_flag(tvb, subtree, curr_bit_offset++, hf_gsm_a_rr_eutran_measurement_bandwidth_present))
        {
            proto_tree_add_bits_item(subtree, hf_gsm_a_rr_eutran_measurement_bandwidth, tvb, curr_bit_offset, 3, ENC_BIG_ENDIAN);
            curr_bit_offset += 3;
        }
    }

    if (gsm_rr_csn_flag(tvb, subtree, curr_bit_offset++, hf_gsm_a_rr_eutran_priority_present))
    {
        proto_tree_add_bits_item(subtree, hf_gsm_a_rr_eutran_priority, tvb, curr_bit_offset, 3, ENC_BIG_ENDIAN);
        curr_bit_offset += 3;
    }
    proto_tree_add_bits_item(subtree, hf_gsm_a_rr_thresh_eutran_high, tvb, curr_bit_offset, 5, ENC_BIG_ENDIAN);
    curr_bit_offset += 5;

    if (gsm_rr_csn_flag(tvb, subtree, curr_bit_offset++, hf_gsm_a_rr_thresh_eutran_low_present))
    {
        proto_tree_add_bits_item(subtree, hf_gsm_a_rr_thresh_eutran_low, tvb, curr_bit_offset, 5, ENC_BIG_ENDIAN);
        curr_bit_offset += 5;
    }

    if (gsm_rr_csn_flag(tvb, subtree, curr_bit_offset++, hf_gsm_a_rr_eutran_qrxlevmin_present))
    {
        proto_tree_add_bits_item(subtree, hf_gsm_a_rr_eutran_qrxlevmin, tvb, curr_bit_offset, 5, ENC_BIG_ENDIAN);
        curr_bit_offset += 5;
    }
    proto_item_set_len(item,((curr_bit_offset>>3) - (bit_offset>>3) + 1));

    return curr_bit_offset - bit_offset;
}

static int
de_rr_eutran_neighbour_cells_mi(tvbuff_t *tvb, proto_tree *tree, int bit_offset)
{
    proto_tree *subtree;
    proto_item *item;
    int         curr_bit_offset;

    curr_bit_offset = bit_offset;
    subtree = proto_tree_add_subtree(tree, tvb, curr_bit_offset>>3, -1, ett_gsm_rr_rest_octets_elem[DE_RR_REST_OCTETS_EUTRAN_NEIGHBOUR_CELLS], &item,
                                            gsm_rr_rest_octets_elem_strings[DE_RR_REST_OCTETS_EUTRAN_NEIGHBOUR_CELLS]);

    proto_tree_add_bits_item(subtree, hf_gsm_a_rr_eutran_earfcn, tvb, curr_bit_offset, 16, ENC_BIG_ENDIAN);
    curr_bit_offset += 16;
    while (gsm_rr_csn_flag(tvb, subtree, curr_bit_offset++, hf_gsm_a_rr_repeated_earfcn))
    {
       proto_tree_add_bits_item(subtree, hf_gsm_a_rr_eutran_earfcn, tvb, curr_bit_offset, 16, ENC_BIG_ENDIAN);
       curr_bit_offset += 16;
    }
    if (gsm_rr_csn_flag(tvb, subtree, curr_bit_offset++, hf_gsm_a_rr_eutran_measurement_bandwidth_present))
    {
        proto_tree_add_bits_item(subtree, hf_gsm_a_rr_eutran_measurement_bandwidth, tvb, curr_bit_offset, 3, ENC_BIG_ENDIAN);
        curr_bit_offset += 3;
    }
    proto_item_set_len(item,((curr_bit_offset>>3) - (bit_offset>>3) + 1));

    return curr_bit_offset - bit_offset;
}

static int
de_rr_eutran_pcid(tvbuff_t *tvb, proto_tree *tree, int bit_offset)
{
    int         curr_bit_offset = bit_offset;
    proto_item *item;

    while (gsm_rr_csn_flag(tvb, tree, curr_bit_offset++, hf_gsm_a_rr_repeated_pcid))
    {
        proto_tree_add_bits_item(tree, hf_gsm_a_rr_eutran_pcid, tvb, curr_bit_offset, 9, ENC_BIG_ENDIAN);
        curr_bit_offset += 9;
    }

    if (gsm_rr_csn_flag(tvb, tree, curr_bit_offset++, hf_gsm_a_rr_eutran_pcid_bitmap_group_present))
    {
        int i;
        uint8_t bitmap = tvb_get_bits8(tvb,curr_bit_offset,6);
        item = proto_tree_add_bits_item(tree, hf_gsm_a_rr_eutran_pcid_bitmap_group, tvb, curr_bit_offset, 6, ENC_BIG_ENDIAN);
        if (bitmap > 0)
        {
            proto_item_append_text(item, ": Cells IDs addressed by the bitmap:");
        }
        for (i = 0; i < 6; i++)
        {
            if ((1 << i) & bitmap)
            {
                if ( i != 0)
                {
                    proto_item_append_text(item, ",");
                }
                proto_item_append_text(item, " %d to %d",i*84, (i+1)*84 - 1);
            }
        }
        curr_bit_offset += 6;
    }
    while (gsm_rr_csn_flag(tvb, tree, curr_bit_offset++, hf_gsm_a_rr_pcid_pattern_present))
    {
        int pcid_pattern_length;
        int pcid_pattern;
        int pattern_lower_bound, pattern_upper_bound;
        int i;

        pcid_pattern_length = tvb_get_bits8(tvb,curr_bit_offset,3) + 1;
        proto_tree_add_bits_item(tree, hf_gsm_a_rr_eutran_pcid_pattern_length, tvb, curr_bit_offset, 3, ENC_BIG_ENDIAN);
        curr_bit_offset += 3;
        pcid_pattern = tvb_get_bits8(tvb,curr_bit_offset, pcid_pattern_length);

        item = proto_tree_add_uint(tree, hf_gsm_a_rr_pcid_pattern, tvb, curr_bit_offset>>3, 1, pcid_pattern);

        pattern_lower_bound = pcid_pattern << (9 - pcid_pattern_length);
        pattern_upper_bound = pattern_lower_bound;
        for (i = 0; i < (9-pcid_pattern_length); i++)
        {
            pattern_upper_bound |= 1 << i;
        }
        proto_item_append_text(item, ": Cells IDs addressed by the pattern: %d to %d", pattern_lower_bound, pattern_upper_bound);

        curr_bit_offset += pcid_pattern_length;
        proto_tree_add_bits_item(tree, hf_gsm_a_rr_eutran_pcid_pattern_sense, tvb, curr_bit_offset, 1, ENC_BIG_ENDIAN);
        curr_bit_offset += 1;
    }

    return curr_bit_offset - bit_offset;
}

static int
de_rr_eutran_not_allowed_cells(tvbuff_t *tvb, proto_tree *tree, int bit_offset)
{
    proto_tree *subtree;
    proto_item *item;
    int         curr_bit_offset;

    curr_bit_offset = bit_offset;
    subtree = proto_tree_add_subtree(tree, tvb, curr_bit_offset>>3, -1, ett_gsm_rr_rest_octets_elem[DE_RR_REST_OCTETS_EUTRAN_NOT_ALLOWED_CELLS], &item,
                                gsm_rr_rest_octets_elem_strings[DE_RR_REST_OCTETS_EUTRAN_NOT_ALLOWED_CELLS]);

    /* dissect PCID group */
    curr_bit_offset += de_rr_eutran_pcid(tvb, subtree, curr_bit_offset);

    while (gsm_rr_csn_flag(tvb, subtree, curr_bit_offset++, hf_gsm_a_rr_repeated_eutran_frequency_index))
    {
        proto_tree_add_bits_item(subtree, hf_gsm_a_rr_eutran_frequency_index, tvb, curr_bit_offset, 3, ENC_BIG_ENDIAN);
        curr_bit_offset += 3;
    }
    proto_item_set_len(item,((curr_bit_offset>>3) - (bit_offset>>3) + 1));

    return curr_bit_offset - bit_offset;
}

static int
de_rr_eutran_pcid_to_ta_mapping(tvbuff_t *tvb, proto_tree *tree, int bit_offset)
{
    proto_tree *subtree;
    proto_item *item;
    int         curr_bit_offset;

    curr_bit_offset = bit_offset;
    subtree = proto_tree_add_subtree(tree, tvb, curr_bit_offset>>3, -1, ett_gsm_rr_rest_octets_elem[DE_RR_REST_OCTETS_EUTRAN_PCID_TO_TA_MAPPING], &item,
                                gsm_rr_rest_octets_elem_strings[DE_RR_REST_OCTETS_EUTRAN_PCID_TO_TA_MAPPING]);

    while (gsm_rr_csn_flag(tvb, subtree, curr_bit_offset++, hf_gsm_a_rr_repeating_pcid_group))
    {
        /* dissect PCID group */
        curr_bit_offset += de_rr_eutran_pcid(tvb, subtree, curr_bit_offset);
    }
    proto_item_set_len(item,((curr_bit_offset>>3) - (bit_offset>>3) + 1));

    return curr_bit_offset - bit_offset;
}

static int
de_rr_eutran_measurement_param_desc(tvbuff_t *tvb, proto_tree *tree, int bit_offset)
{
    int         curr_bit_offset;
    proto_item *item;
    uint8_t     rep_quant, rep_thresh;

    curr_bit_offset = bit_offset;

    /* E-UTRAN Measurement Parameters Description */
    proto_tree_add_bits_item(tree, hf_gsm_a_rr_qsearch_c_eutran_initial, tvb, curr_bit_offset, 4, ENC_BIG_ENDIAN);
    curr_bit_offset += 4;
    rep_quant = gsm_rr_csn_flag(tvb, tree, curr_bit_offset, hf_gsm_a_rr_eutran_reporting_quantity);
    curr_bit_offset += 1;
    proto_tree_add_bits_item(tree, hf_gsm_a_rr_eutran_multirat_reporting, tvb, curr_bit_offset, 2, ENC_BIG_ENDIAN);
    curr_bit_offset += 2;


    if (!gsm_rr_csn_flag(tvb, tree, curr_bit_offset++, hf_gsm_a_rr_eutran_reporting))
    {
        if (gsm_rr_csn_flag(tvb, tree, curr_bit_offset++, hf_gsm_a_rr_eutran_fdd_reporting_present))
        {
            if (rep_quant == 0)
            {
                proto_tree_add_bits_item(tree, hf_gsm_a_rr_eutran_fdd_reporting_threshold_rsrp, tvb, curr_bit_offset, 3, ENC_BIG_ENDIAN);
            }
            else
            {
                proto_tree_add_bits_item(tree, hf_gsm_a_rr_eutran_fdd_reporting_threshold_rsrq, tvb, curr_bit_offset, 3, ENC_BIG_ENDIAN);
            }
            curr_bit_offset += 3;

            if (gsm_rr_csn_flag(tvb, tree, curr_bit_offset++, hf_gsm_a_rr_eutran_fdd_reporting_threshold_2_present))
            {
                item = proto_tree_add_bits_item(tree, hf_gsm_a_rr_eutran_fdd_reporting_threshold_2, tvb, curr_bit_offset, 6, ENC_BIG_ENDIAN);
                rep_thresh = tvb_get_bits8(tvb,curr_bit_offset, 6);
                if (rep_quant == 0)
                {
                    proto_item_append_text(item, " (%.1f dB)", (float)rep_thresh/2 - 19.5);
                }
                else
                {
                    proto_item_append_text(item, " (%d dBm)", rep_thresh - 140);
                }
                curr_bit_offset += 6;
            }
            if (gsm_rr_csn_flag(tvb, tree, curr_bit_offset++, hf_gsm_a_rr_eutran_fdd_reporting_offset_present))
            {
                proto_tree_add_bits_item(tree, hf_gsm_a_rr_eutran_fdd_reporting_offset, tvb, curr_bit_offset, 3, ENC_BIG_ENDIAN);

                curr_bit_offset += 3;
            }
        }

        if (gsm_rr_csn_flag(tvb, tree, curr_bit_offset++, hf_gsm_a_rr_eutran_tdd_reporting_present))
        {
            if (rep_quant == 0)
            {
                proto_tree_add_bits_item(tree, hf_gsm_a_rr_eutran_tdd_reporting_threshold_rsrp, tvb, curr_bit_offset, 3, ENC_BIG_ENDIAN);
            }
            else
            {
                proto_tree_add_bits_item(tree, hf_gsm_a_rr_eutran_tdd_reporting_threshold_rsrq, tvb, curr_bit_offset, 3, ENC_BIG_ENDIAN);
            }
            curr_bit_offset += 3;

            if (gsm_rr_csn_flag(tvb, tree, curr_bit_offset++, hf_gsm_a_rr_eutran_tdd_reporting_threshold_2_present))
            {
                item = proto_tree_add_bits_item(tree, hf_gsm_a_rr_eutran_tdd_reporting_threshold_2, tvb, curr_bit_offset, 6, ENC_BIG_ENDIAN);
                rep_thresh = tvb_get_bits8(tvb,curr_bit_offset, 6);
                if (rep_quant == 0)
                {
                    proto_item_append_text(item, " (%.1f dB)", (float)rep_thresh/2 - 19.5);
                }
                else
                {
                    proto_item_append_text(item, " (%d dBm)", rep_thresh - 140);
                }
                curr_bit_offset += 6;
            }
            if (gsm_rr_csn_flag(tvb, tree, curr_bit_offset++, hf_gsm_a_rr_eutran_tdd_reporting_offset_present))
            {
                proto_tree_add_bits_item(tree, hf_gsm_a_rr_eutran_tdd_reporting_offset, tvb, curr_bit_offset, 3, ENC_BIG_ENDIAN);

                curr_bit_offset += 3;
            }
        }
    }
    else
    {
        if (gsm_rr_csn_flag(tvb, tree, curr_bit_offset++, hf_gsm_a_rr_eutran_fdd_reporting_threshold))
        {
            item = proto_tree_add_bits_item(tree, hf_gsm_a_rr_eutran_fdd_measurement_report_offset, tvb, curr_bit_offset, 6, ENC_BIG_ENDIAN);
            rep_thresh = tvb_get_bits8(tvb,curr_bit_offset, 6);
            if (rep_quant == 0)
            {
                proto_item_append_text(item, " (%d dBm)", rep_thresh - 140);
            }
            else
            {
                proto_item_append_text(item, " (%.1f dB)", (float)rep_thresh/2 - 19.5);
            }
            curr_bit_offset += 6;

            if (gsm_rr_csn_flag(tvb, tree, curr_bit_offset++, hf_gsm_a_rr_eutran_fdd_reporting_threshold_2_present))
            {
                item = proto_tree_add_bits_item(tree, hf_gsm_a_rr_eutran_fdd_reporting_threshold_2, tvb, curr_bit_offset, 6, ENC_BIG_ENDIAN);
                rep_thresh = tvb_get_bits8(tvb,curr_bit_offset, 6);
                if (rep_quant == 0)
                {
                    proto_item_append_text(item, " (%.1f dB)", (float)rep_thresh/2 - 19.5);
                }
                else
                {
                    proto_item_append_text(item, " (%d dBm)", rep_thresh - 140);
                }
                curr_bit_offset += 6;
            }
            if (gsm_rr_csn_flag(tvb, tree, curr_bit_offset++, hf_gsm_a_rr_eutran_fdd_reporting_offset_present))
            {
                proto_tree_add_bits_item(tree, hf_gsm_a_rr_eutran_fdd_reporting_offset, tvb, curr_bit_offset, 3, ENC_BIG_ENDIAN);
                curr_bit_offset += 3;
            }
        }

        if (gsm_rr_csn_flag(tvb, tree, curr_bit_offset++, hf_gsm_a_rr_eutran_tdd_measurement_report_offset_present))
        {
            item = proto_tree_add_bits_item(tree, hf_gsm_a_rr_eutran_tdd_measurement_report_offset, tvb, curr_bit_offset, 6, ENC_BIG_ENDIAN);
            rep_thresh = tvb_get_bits8(tvb,curr_bit_offset, 6);
            if (rep_quant == 0)
            {
                proto_item_append_text(item, " (%d dBm)", rep_thresh - 140);
            }
            else
            {
                proto_item_append_text(item, " (%.1f dB)", (float)rep_thresh/2 - 19.5);
            }
            curr_bit_offset += 6;

            if (gsm_rr_csn_flag(tvb, tree, curr_bit_offset++, hf_gsm_a_rr_eutran_tdd_reporting_threshold_2_present))
            {
                item = proto_tree_add_bits_item(tree, hf_gsm_a_rr_eutran_tdd_reporting_threshold_2, tvb, curr_bit_offset, 6, ENC_BIG_ENDIAN);
                rep_thresh = tvb_get_bits8(tvb,curr_bit_offset, 6);
                if (rep_quant == 0)
                {
                    proto_item_append_text(item, " (%.1f dB)", (float)rep_thresh/2 - 19.5);
                }
                else
                {
                    proto_item_append_text(item, " (%d dBm)", rep_thresh - 140);
                }
                curr_bit_offset += 6;
            }
            if (gsm_rr_csn_flag(tvb, tree, curr_bit_offset++, hf_gsm_a_rr_eutran_tdd_reporting_offset_present))
            {
                proto_tree_add_bits_item(tree, hf_gsm_a_rr_eutran_tdd_reporting_offset, tvb, curr_bit_offset, 3, ENC_BIG_ENDIAN);
                curr_bit_offset += 3;
            }
        }
        item = proto_tree_add_bits_item(tree, hf_gsm_a_rr_reporting_granularity, tvb, curr_bit_offset, 1, ENC_BIG_ENDIAN);
        if (rep_quant == 0)
        {
            proto_item_append_text(item, " (%d dB step)", 2 + tvb_get_bits8(tvb,curr_bit_offset,1));
        }
        else
        {
            proto_item_append_text(item, " (%d dB step)", 1 + tvb_get_bits8(tvb,curr_bit_offset,1));
        }
        curr_bit_offset += 1;
    }

    return curr_bit_offset - bit_offset;
}

static int
de_rr_eutran_param_desc(tvbuff_t *tvb, proto_tree *tree, int bit_offset)
{
    proto_tree *subtree;
    proto_item *item;
    int         curr_bit_offset;
    uint8_t     rep_quant = 0, rep_thresh = 0;

    curr_bit_offset = bit_offset;
    subtree = proto_tree_add_subtree(tree, tvb, curr_bit_offset>>3, -1, ett_gsm_rr_rest_octets_elem[DE_RR_REST_OCTETS_EUTRAN_PARAM_DESC], &item,
                        gsm_rr_rest_octets_elem_strings[DE_RR_REST_OCTETS_EUTRAN_PARAM_DESC]);

    proto_tree_add_bits_item(subtree, hf_gsm_a_rr_eutran_ccn_active, tvb, curr_bit_offset, 1, ENC_BIG_ENDIAN);
    curr_bit_offset += 1;
    proto_tree_add_bits_item(subtree, hf_gsm_a_rr_eutran_start, tvb, curr_bit_offset, 1, ENC_BIG_ENDIAN);
    curr_bit_offset += 1;
    proto_tree_add_bits_item(subtree, hf_gsm_a_rr_eutran_stop, tvb, curr_bit_offset, 1, ENC_BIG_ENDIAN);
    curr_bit_offset += 1;

    if (gsm_rr_csn_flag(tvb, subtree, curr_bit_offset++, hf_gsm_a_rr_eutran_measurement_parameters_description))
    {
        /* E-UTRAN Measurement Parameters Description */
        curr_bit_offset += de_rr_eutran_measurement_param_desc(tvb, subtree, curr_bit_offset);
    }

    if (gsm_rr_csn_flag(tvb, subtree, curr_bit_offset++, hf_gsm_a_rr_gprs_eutran_measurement_parameters_description))
    {
        /* GPRS E-UTRAN Measurement Parameters Description */
        proto_tree_add_bits_item(subtree, hf_gsm_a_rr_qsearch_p_eutran, tvb, curr_bit_offset, 4, ENC_BIG_ENDIAN);
        curr_bit_offset += 4;
        rep_quant = gsm_rr_csn_flag(tvb, subtree, curr_bit_offset, hf_gsm_a_rr_eutran_reporting_quantity);
        curr_bit_offset++;
        proto_tree_add_bits_item(subtree, hf_gsm_a_rr_eutran_multirat_reporting, tvb, curr_bit_offset, 2, ENC_BIG_ENDIAN);
        curr_bit_offset += 2;

        if (gsm_rr_csn_flag(tvb, subtree, curr_bit_offset++, hf_gsm_a_rr_eutran_fdd_reporting))
        {
            if (rep_quant == 0)
            {
                proto_tree_add_bits_item(subtree, hf_gsm_a_rr_eutran_fdd_reporting_threshold_rsrp, tvb, curr_bit_offset, 3, ENC_BIG_ENDIAN);
            }
            else
            {
                proto_tree_add_bits_item(subtree, hf_gsm_a_rr_eutran_fdd_reporting_threshold_rsrq, tvb, curr_bit_offset, 3, ENC_BIG_ENDIAN);
            }
            curr_bit_offset += 3;

            if (gsm_rr_csn_flag(tvb, subtree, curr_bit_offset++, hf_gsm_a_rr_eutran_fdd_reporting_threshold_2_present))
            {
                item = proto_tree_add_bits_item(tree, hf_gsm_a_rr_eutran_fdd_reporting_threshold_2, tvb, curr_bit_offset, 6, ENC_BIG_ENDIAN);
                rep_thresh = tvb_get_bits8(tvb,curr_bit_offset, 6);
                if (rep_quant == 0)
                {
                    proto_item_append_text(item, " (%.1f dB)", (float)rep_thresh/2 - 19.5);
                }
                else
                {
                    proto_item_append_text(item, " (%d dBm)", rep_thresh - 140);
                }
                curr_bit_offset += 6;
            }
            if (gsm_rr_csn_flag(tvb, subtree, curr_bit_offset++, hf_gsm_a_rr_eutran_fdd_reporting_offset_present))
            {
                item = proto_tree_add_bits_item(tree, hf_gsm_a_rr_eutran_fdd_reporting_offset, tvb, curr_bit_offset, 3, ENC_BIG_ENDIAN);
                curr_bit_offset += 3;
            }
        }

        if (gsm_rr_csn_flag(tvb, subtree, curr_bit_offset++, hf_gsm_a_rr_eutran_tdd_reporting))
        {
            if (rep_quant == 0)
            {
                proto_tree_add_bits_item(subtree, hf_gsm_a_rr_eutran_tdd_reporting_threshold_rsrp, tvb, curr_bit_offset, 3, ENC_BIG_ENDIAN);
            }
            else
            {
                proto_tree_add_bits_item(subtree, hf_gsm_a_rr_eutran_tdd_reporting_threshold_rsrq, tvb, curr_bit_offset, 3, ENC_BIG_ENDIAN);
            }
            curr_bit_offset += 3;

            if (gsm_rr_csn_flag(tvb, subtree, curr_bit_offset++, hf_gsm_a_rr_eutran_tdd_reporting_threshold_2_present))
            {
                item = proto_tree_add_bits_item(tree, hf_gsm_a_rr_eutran_tdd_reporting_threshold_2, tvb, curr_bit_offset, 6, ENC_BIG_ENDIAN);
                rep_thresh = tvb_get_bits8(tvb,curr_bit_offset, 6);
                if (rep_quant == 0)
                {
                    proto_item_append_text(item, " (%.1f dB)", (float)rep_thresh/2 - 19.5);
                }
                else
                {
                    proto_item_append_text(item, " (%d dBm)", rep_thresh - 140);
                }
                curr_bit_offset += 6;
            }
            if (gsm_rr_csn_flag(tvb, subtree, curr_bit_offset++, hf_gsm_a_rr_eutran_tdd_reporting_offset_present))
            {
                item = proto_tree_add_bits_item(tree, hf_gsm_a_rr_eutran_tdd_reporting_offset, tvb, curr_bit_offset, 3, ENC_BIG_ENDIAN);
                curr_bit_offset += 3;
            }
        }
    }

    /* Repeated E-UTRAN Neighbour Cells */
    while (gsm_rr_csn_flag(tvb, subtree, curr_bit_offset++, hf_gsm_a_rr_repeated_eutran_neighbour_cells))
    {
        curr_bit_offset += de_rr_eutran_neighbour_cells(tvb, subtree, curr_bit_offset);
    }

    /* Repeated E-UTRAN Not Allowed Cells */
    while (gsm_rr_csn_flag(tvb, subtree, curr_bit_offset++, hf_gsm_a_rr_repeated_eutran_not_allowed_cells))
    {
        curr_bit_offset += de_rr_eutran_not_allowed_cells(tvb, subtree, curr_bit_offset);
    }

    /* Repeated E-UTRAN PCID to TA mapping */
    while (gsm_rr_csn_flag(tvb, subtree, curr_bit_offset++, hf_gsm_a_rr_repeated_eutran_pcid_ta_mapping))
    {
        curr_bit_offset += de_rr_eutran_pcid_to_ta_mapping(tvb, subtree, curr_bit_offset);
    }
    proto_item_set_len(item,((curr_bit_offset>>3) - (bit_offset>>3) + 1));

    return curr_bit_offset - bit_offset;
}

static int
de_rr_eutran_param_desc_mi(tvbuff_t *tvb, proto_tree *tree, int bit_offset)
{
    proto_tree *subtree;
    proto_item *item;
    int         curr_bit_offset;

    curr_bit_offset = bit_offset;
    subtree = proto_tree_add_subtree(tree, tvb, curr_bit_offset>>3, -1, ett_gsm_rr_rest_octets_elem[DE_RR_REST_OCTETS_EUTRAN_PARAM_DESC], &item,
                                    gsm_rr_rest_octets_elem_strings[DE_RR_REST_OCTETS_EUTRAN_PARAM_DESC]);

    proto_tree_add_bits_item(subtree, hf_gsm_a_rr_eutran_start, tvb, curr_bit_offset, 1, ENC_BIG_ENDIAN);
    curr_bit_offset += 1;
    proto_tree_add_bits_item(subtree, hf_gsm_a_rr_eutran_stop, tvb, curr_bit_offset, 1, ENC_BIG_ENDIAN);
    curr_bit_offset += 1;

    if (gsm_rr_csn_flag(tvb, subtree, curr_bit_offset++, hf_gsm_a_rr_eutran_measurement_parameters_description))
    {
        /* E-UTRAN Measurement Parameters Description */
        curr_bit_offset += de_rr_eutran_measurement_param_desc(tvb, subtree, curr_bit_offset);
    }

    /* Repeated E-UTRAN Neighbour Cells */
    while (gsm_rr_csn_flag(tvb, subtree, curr_bit_offset++, hf_gsm_a_rr_repeated_eutran_neighbour_cells))
    {
        curr_bit_offset += de_rr_eutran_neighbour_cells_mi(tvb, subtree, curr_bit_offset);
    }

    /* Repeated E-UTRAN Not Allowed Cells */
    while (gsm_rr_csn_flag(tvb, subtree, curr_bit_offset++, hf_gsm_a_rr_repeated_eutran_not_allowed_cells))
    {
        curr_bit_offset += de_rr_eutran_not_allowed_cells(tvb, subtree, curr_bit_offset);
    }

    /* Measurement Control Parameters Description */
    if (gsm_rr_csn_flag(tvb, subtree, curr_bit_offset++, hf_gsm_a_rr_measurement_control_parameters_description))
    {
        if (gsm_rr_csn_flag(tvb, subtree, curr_bit_offset++, hf_gsm_a_rr_eutran_default_measurement_control_eutran_present))
        {
            proto_tree_add_bits_item(subtree, hf_gsm_a_rr_eutran_default_measurement_control_eutran, tvb, curr_bit_offset, 1, ENC_BIG_ENDIAN);
            curr_bit_offset += 1;
        }
        while (gsm_rr_csn_flag(tvb, subtree, curr_bit_offset++, hf_gsm_a_rr_repeated_eutran_measurement_control_parameters))
        {
            while (gsm_rr_csn_flag(tvb, subtree, curr_bit_offset++, hf_gsm_a_rr_repeated_eutran_frequency_index))
            {
                proto_tree_add_bits_item(subtree, hf_gsm_a_rr_eutran_frequency_index, tvb, curr_bit_offset, 3, ENC_BIG_ENDIAN);
                curr_bit_offset += 3;
            }
            proto_tree_add_bits_item(subtree, hf_gsm_a_rr_eutran_measurement_control_eutran, tvb, curr_bit_offset, 1, ENC_BIG_ENDIAN);
            curr_bit_offset += 1;
        }
    }
    proto_item_set_len(item,((curr_bit_offset>>3) - (bit_offset>>3) + 1));

    return curr_bit_offset - bit_offset;
}

static int
de_rr_priority_and_eutran_param_desc(tvbuff_t *tvb, proto_tree *tree, int bit_offset)
{
    proto_tree *subtree;
    proto_item *item;
    int         curr_bit_offset;

    curr_bit_offset = bit_offset;
    subtree = proto_tree_add_subtree(tree, tvb, curr_bit_offset>>3, -1, ett_gsm_rr_rest_octets_elem[DE_RR_REST_OCTETS_PRIORITY_AND_EUTRAN_PARAM_DESC], &item,
                                    gsm_rr_rest_octets_elem_strings[DE_RR_REST_OCTETS_PRIORITY_AND_EUTRAN_PARAM_DESC]);

    /* Serving Cell Priority Parameters Description */
    if (gsm_rr_csn_flag(tvb, subtree, curr_bit_offset++, hf_gsm_a_rr_serving_cell_priority_parameters_description))
    {
        proto_tree *subtree_serv;
        proto_item *item_serv;
        int serv_bit_offset = curr_bit_offset;

        subtree_serv = proto_tree_add_subtree(subtree, tvb, curr_bit_offset>>3, ((curr_bit_offset+15)>>3)-(curr_bit_offset>>3) + 1,
                            ett_gsm_rr_rest_octets_elem[DE_RR_REST_OCTETS_SERVING_CELL_PRIORITY_PARAM_DESC], &item_serv,
                            gsm_rr_rest_octets_elem_strings[DE_RR_REST_OCTETS_SERVING_CELL_PRIORITY_PARAM_DESC]);

        proto_tree_add_bits_item(subtree_serv, hf_gsm_a_rr_serving_cell_priority_param_geran_priority, tvb, curr_bit_offset, 3, ENC_BIG_ENDIAN);
        curr_bit_offset += 3;
        proto_tree_add_bits_item(subtree_serv, hf_gsm_a_rr_serving_cell_priority_param_thresh_prio_search, tvb, curr_bit_offset, 4, ENC_BIG_ENDIAN);
        curr_bit_offset += 4;
        proto_tree_add_bits_item(subtree_serv, hf_gsm_a_rr_serving_cell_priority_param_thresh_gsm_low, tvb, curr_bit_offset, 4, ENC_BIG_ENDIAN);
        curr_bit_offset += 4;
        proto_tree_add_bits_item(subtree_serv, hf_gsm_a_rr_serving_cell_priority_param_h_prio, tvb, curr_bit_offset, 2, ENC_BIG_ENDIAN);
        curr_bit_offset += 2;
        proto_tree_add_bits_item(subtree_serv, hf_gsm_a_rr_serving_cell_priority_param_t_reselection, tvb, curr_bit_offset, 2, ENC_BIG_ENDIAN);
        curr_bit_offset += 2;
        proto_item_set_len(item_serv, (curr_bit_offset>>3) - (serv_bit_offset>>3)+1);
    }

    /* 3G Priority Parameters Description */
    if (gsm_rr_csn_flag(tvb, subtree, curr_bit_offset++, hf_gsm_a_rr_3g_priority_parameters_description))
    {
        curr_bit_offset += de_rr_3g_priority_param_desc(tvb, subtree, curr_bit_offset);
    }

    /* E-UTRAN Parameters Description */
    if (gsm_rr_csn_flag(tvb, subtree, curr_bit_offset++, hf_gsm_a_rr_eutran_parameters_description))
    {
        curr_bit_offset += de_rr_eutran_param_desc(tvb, subtree, curr_bit_offset);
    }
    proto_item_set_len(item,((curr_bit_offset>>3) - (bit_offset>>3) + 1));

    return (curr_bit_offset - bit_offset);
}

static int
de_rr_3g_csg_desc(tvbuff_t *tvb, proto_tree *tree, int bit_offset)
{
    proto_tree *subtree;
    proto_item *item;
    int         curr_bit_offset;

    curr_bit_offset = bit_offset;
    subtree = proto_tree_add_subtree(tree, tvb, curr_bit_offset>>3, -1, ett_gsm_rr_rest_octets_elem[DE_RR_REST_OCTETS_3G_CSG_DESC], &item,
                            gsm_rr_rest_octets_elem_strings[DE_RR_REST_OCTETS_3G_CSG_DESC]);

    while (gsm_rr_csn_flag(tvb, subtree, bit_offset++, hf_gsm_a_rr_repeated_csg_psc_split_struct))
    {
        /* CSG_PSC_SPLIT struct */
        while (gsm_rr_csn_flag(tvb, subtree, curr_bit_offset++, hf_gsm_a_rr_psc_present))
        {
            proto_tree_add_bits_item(subtree, hf_gsm_a_rr_psc, tvb, curr_bit_offset, 9, ENC_BIG_ENDIAN);
            curr_bit_offset += 9;
        }
        while (gsm_rr_csn_flag(tvb, subtree, curr_bit_offset++, hf_gsm_a_rr_psc_pattern_present))
        {
            int psc_pattern_length;
            int psc_pattern;

            psc_pattern_length = tvb_get_bits8(tvb,curr_bit_offset,3) + 1;
            proto_tree_add_bits_item(subtree, hf_gsm_a_rr_utran_psc_pattern_length, tvb, curr_bit_offset, 3, ENC_BIG_ENDIAN);
            curr_bit_offset += 3;
            psc_pattern = tvb_get_bits8(tvb,curr_bit_offset, psc_pattern_length);

            item = proto_tree_add_uint(tree, hf_gsm_a_rr_psc_pattern, tvb, curr_bit_offset>>3, 1, psc_pattern);

            curr_bit_offset += psc_pattern_length;
            proto_tree_add_bits_item(subtree, hf_gsm_a_rr_utran_psc_pattern_sense, tvb, curr_bit_offset, 1, ENC_BIG_ENDIAN);
            curr_bit_offset += 1;
        }

        while (gsm_rr_csn_flag(tvb, subtree, curr_bit_offset++, hf_gsm_a_rr_repeated_utran_frequency_index))
        {
            proto_tree_add_bits_item(subtree, hf_gsm_a_rr_utran_frequency_index, tvb, curr_bit_offset, 5, ENC_BIG_ENDIAN);
            curr_bit_offset += 5;
        }
    }

    while(gsm_rr_csn_flag(tvb, subtree, curr_bit_offset++, hf_gsm_a_rr_repeated_csg_fdd_uarfcn))
    {
        /* CSG_FDD_UARFCN */
        if (!gsm_rr_csn_flag(tvb, subtree, curr_bit_offset++, hf_gsm_a_rr_3g_csg_desc_technology))
        {
            proto_tree_add_bits_item(subtree, hf_gsm_a_rr_utran_csg_fdd_uarfcn, tvb, curr_bit_offset, 14, ENC_BIG_ENDIAN);
            curr_bit_offset += 14;
        }
        else
        {
            proto_tree_add_bits_item(subtree, hf_gsm_a_rr_utran_csg_tdd_uarfcn, tvb, curr_bit_offset, 14, ENC_BIG_ENDIAN);
            curr_bit_offset += 14;
        }
    }
    proto_item_set_len(item,((curr_bit_offset>>3) - (bit_offset>>3) + 1));

    return curr_bit_offset - bit_offset;
}

static int
de_rr_eutran_csg_desc(tvbuff_t *tvb, proto_tree *tree, int bit_offset)
{
    proto_tree *subtree;
    proto_item *item;
    int         curr_bit_offset;

    curr_bit_offset = bit_offset;
    subtree = proto_tree_add_subtree(tree, tvb, curr_bit_offset>>3, -1, ett_gsm_rr_rest_octets_elem[DE_RR_REST_OCTETS_EUTRAN_CSG_DESC], &item,
                                    gsm_rr_rest_octets_elem_strings[DE_RR_REST_OCTETS_EUTRAN_CSG_DESC]);

    while (gsm_rr_csn_flag(tvb, subtree, curr_bit_offset++, hf_gsm_a_rr_repeated_pcid_group))
    {
        /* dissect PCID group */
        curr_bit_offset += de_rr_eutran_pcid(tvb, subtree, curr_bit_offset);
    }

    while (gsm_rr_csn_flag(tvb, subtree, curr_bit_offset++, hf_gsm_a_rr_repeated_earfcn))
    {
        proto_tree_add_bits_item(subtree, hf_gsm_a_rr_csg_earfcn, tvb, curr_bit_offset, 16, ENC_BIG_ENDIAN);
        curr_bit_offset += 16;
    }
    proto_item_set_len(item,((curr_bit_offset>>3) - (bit_offset>>3) + 1));

    return curr_bit_offset - bit_offset;
}

static int
de_rr_eutran_csg_desc_mi(tvbuff_t *tvb, proto_tree *tree, int bit_offset)
{
    proto_tree *subtree;
    proto_item *item;
    int         curr_bit_offset;

    curr_bit_offset = bit_offset;
    subtree = proto_tree_add_subtree(tree, tvb, curr_bit_offset>>3, -1, ett_gsm_rr_rest_octets_elem[DE_RR_REST_OCTETS_EUTRAN_CSG_DESC], &item,
                    gsm_rr_rest_octets_elem_strings[DE_RR_REST_OCTETS_EUTRAN_CSG_DESC]);

    while (gsm_rr_csn_flag(tvb, subtree, curr_bit_offset++, hf_gsm_a_rr_repeated_csg_pci_split))
    {
        /* dissect PCID group */
        curr_bit_offset += de_rr_eutran_pcid(tvb, subtree, curr_bit_offset);
    }
    proto_item_set_len(item,((curr_bit_offset>>3) - (bit_offset>>3) + 1));

    return curr_bit_offset - bit_offset;
}

static int
de_rr_utran_measurement_control_param_mi(tvbuff_t *tvb, proto_tree *tree, int bit_offset)
{
    proto_tree *subtree;
    proto_item *item;
    int         curr_bit_offset;

    curr_bit_offset = bit_offset;
    subtree = proto_tree_add_subtree(tree, tvb, curr_bit_offset>>3, -1, ett_gsm_rr_rest_octets_elem[DE_RR_REST_OCTETS_UTRAN_MEASUREMENT_CONTROL_PARAM_DESC], &item,
                                    gsm_rr_rest_octets_elem_strings[DE_RR_REST_OCTETS_UTRAN_MEASUREMENT_CONTROL_PARAM_DESC]);

    while (gsm_rr_csn_flag(tvb, subtree, curr_bit_offset++, hf_gsm_a_rr_repeated_utran_frequency_index))
    {
        proto_tree_add_bits_item(subtree, hf_gsm_a_rr_utran_frequency_index, tvb, curr_bit_offset, 5, ENC_BIG_ENDIAN);
        curr_bit_offset += 5;
    }
    proto_tree_add_bits_item(subtree, hf_gsm_a_rr_3g_control_param_desc_meas_ctrl_utran, tvb, curr_bit_offset, 1, ENC_BIG_ENDIAN);
    curr_bit_offset += 1;

    proto_item_set_len(item,((curr_bit_offset>>3) - (bit_offset>>3) + 1));

    return curr_bit_offset - bit_offset;
}

static int
de_rr_3g_supplementary_param_desc_mi(tvbuff_t *tvb, proto_tree *tree, int bit_offset)
{
    proto_tree *subtree;
    proto_item *item;
    int         curr_bit_offset;

    curr_bit_offset = bit_offset;
    subtree = proto_tree_add_subtree(tree, tvb, curr_bit_offset>>3, -1, ett_gsm_rr_rest_octets_elem[DE_RR_REST_OCTETS_3G_SUPPLEMENTARY_PARAM_DESC], &item,
                    gsm_rr_rest_octets_elem_strings[DE_RR_REST_OCTETS_3G_SUPPLEMENTARY_PARAM_DESC]);

    proto_tree_add_bits_item(subtree, hf_gsm_a_rr_3g_priority_param_desc_utran_start, tvb, curr_bit_offset, 1, ENC_BIG_ENDIAN);
    curr_bit_offset += 1;
    proto_tree_add_bits_item(subtree, hf_gsm_a_rr_3g_priority_param_desc_utran_stop, tvb, curr_bit_offset, 1, ENC_BIG_ENDIAN);
    curr_bit_offset += 1;

    /* 3G Measurement Control Parameters Description */
    if (gsm_rr_csn_flag(tvb, subtree, curr_bit_offset++, hf_gsm_a_rr_3g_measurement_control_parameters_description))
    {
        /* 3G Measurement Control Parameters Description struct */
        if (gsm_rr_csn_flag(tvb, subtree, curr_bit_offset++, hf_gsm_a_rr_3g_measurement_control_parameters_description_struct))
        {
            proto_tree_add_bits_item(subtree, hf_gsm_a_rr_3g_control_param_desc_meas_ctrl_utran, tvb, curr_bit_offset, 1, ENC_BIG_ENDIAN);
            curr_bit_offset += 1;
        }
        while (gsm_rr_csn_flag(tvb, subtree, curr_bit_offset++, hf_gsm_a_rr_repeated_utran_measurement_control_parameters_struct))
        {
            curr_bit_offset += de_rr_utran_measurement_control_param_mi(tvb, subtree, curr_bit_offset);
        }
    }
    proto_item_set_len(item,((curr_bit_offset>>3) - (bit_offset>>3) + 1));

    return curr_bit_offset - bit_offset;
}

static uint16_t
de_rr_si2quater_rest_oct(tvbuff_t *tvb, proto_tree *subtree, packet_info *pinfo _U_, uint32_t offset, unsigned len _U_, char *add_string _U_, int string_len _U_)
{
    proto_tree  *subtree2, *subtree3;
    proto_item  *item2, *item3;
    uint32_t     curr_offset;
    int          bit_offset, bit_offset_sav, idx;
    uint8_t      value;
    uint8_t      tvb_len = tvb_reported_length(tvb);
    uint16_t     bit_len = tvb_len << 3;

    curr_offset = offset;
    bit_offset  = curr_offset << 3;

    proto_tree_add_bits_item(subtree, hf_gsm_a_rr_ba_ind, tvb, bit_offset, 1, ENC_BIG_ENDIAN);
    bit_offset += 1;
    proto_tree_add_bits_item(subtree, hf_gsm_a_rr_3g_ba_ind, tvb, bit_offset, 1, ENC_BIG_ENDIAN);
    bit_offset += 1;
    proto_tree_add_bits_item(subtree, hf_gsm_a_rr_mp_change_mark, tvb, bit_offset, 1, ENC_BIG_ENDIAN);
    bit_offset += 1;
    proto_tree_add_bits_item(subtree, hf_gsm_a_rr_si2quater_index, tvb, bit_offset, 4, ENC_BIG_ENDIAN);
    bit_offset += 4;
    proto_tree_add_bits_item(subtree, hf_gsm_a_rr_si2quater_count, tvb, bit_offset, 4, ENC_BIG_ENDIAN);
    bit_offset += 4;
    if (gsm_rr_csn_flag(tvb, subtree, bit_offset++, hf_gsm_a_rr_measurement_parameters_description))
    { /* Measurement Parameters Description */
        bit_offset_sav = bit_offset;
        subtree2 = proto_tree_add_subtree(subtree, tvb, bit_offset>>3, -1, ett_gsm_rr_rest_octets_elem[DE_RR_REST_OCTETS_MEAS_PARAM_DESC], &item2,
                    gsm_rr_rest_octets_elem_strings[DE_RR_REST_OCTETS_MEAS_PARAM_DESC]);
        proto_tree_add_bits_item(subtree2, hf_gsm_a_rr_gsm_report_type, tvb, bit_offset, 1, ENC_BIG_ENDIAN);
        bit_offset += 1;
        proto_tree_add_bits_item(subtree2, hf_gsm_a_rr_serving_band_reporting, tvb, bit_offset, 2, ENC_BIG_ENDIAN);
        bit_offset += 2;
        proto_item_set_len(item2, (bit_offset>>3) - (bit_offset_sav>>3)+1);
    }
    if (gsm_rr_csn_flag(tvb, subtree, bit_offset++, hf_gsm_a_rr_gprs_real_time_difference_description))
    { /* GPRS Real Time Difference Description */
        bit_offset += de_rr_rtd_desc(tvb, subtree, bit_offset, DE_RR_REST_OCTETS_GPRS_RTD_DESC);
    }
    if (gsm_rr_csn_flag(tvb, subtree, bit_offset++, hf_gsm_a_rr_gprs_bsic_description))
    { /* GPRS BSIC Description */
        bit_offset += de_rr_bsic_desc(tvb, subtree, bit_offset, DE_RR_REST_OCTETS_GPRS_BSIC_DESC);
    }
    if (gsm_rr_csn_flag(tvb, subtree, bit_offset++, hf_gsm_a_rr_gprs_report_priority_description))
    { /* GPRS Report Priority Description */
        bit_offset += de_rr_report_priority_desc(tvb, subtree, bit_offset, DE_RR_REST_OCTETS_GPRS_REPORT_PRIO_DESC);
    }
    if (gsm_rr_csn_flag(tvb, subtree, bit_offset++, hf_gsm_a_rr_gprs_measurement_parameters_description))
    { /* GPRS Measurement Parameters Description */
        bit_offset += de_rr_meas_param_desc(tvb, subtree, bit_offset, DE_RR_REST_OCTETS_GPRS_MEAS_PARAM_DESC);
    }
    if (gsm_rr_csn_flag(tvb, subtree, bit_offset++, hf_gsm_a_rr_nc_measurement_parameters))
    { /* NC Measurement Parameters */
        bit_offset_sav = bit_offset;
        subtree2 = proto_tree_add_subtree(subtree, tvb, bit_offset>>3, -1, ett_gsm_rr_rest_octets_elem[DE_RR_REST_OCTETS_NC_MEAS_PARAM], &item2,
                            gsm_rr_rest_octets_elem_strings[DE_RR_REST_OCTETS_NC_MEAS_PARAM]);
        proto_tree_add_bits_item(subtree2, hf_gsm_a_rr_network_control_order, tvb, bit_offset, 2, ENC_BIG_ENDIAN);
        bit_offset += 2;
        if (gsm_rr_csn_flag(tvb, subtree, bit_offset++, hf_gsm_a_rr_nc_periods))
        {
            proto_tree_add_bits_item(subtree2, hf_gsm_a_rr_nc_non_drx_period, tvb, bit_offset, 3, ENC_BIG_ENDIAN);
            bit_offset += 3;
            proto_tree_add_bits_item(subtree2, hf_gsm_a_rr_nc_reporting_period_i, tvb, bit_offset, 3, ENC_BIG_ENDIAN);
            bit_offset += 3;
            proto_tree_add_bits_item(subtree2, hf_gsm_a_rr_nc_reporting_period_t, tvb, bit_offset, 3, ENC_BIG_ENDIAN);
            bit_offset += 3;
        }
        proto_item_set_len(item2, (bit_offset>>3) - (bit_offset_sav>>3)+1);
    }
    if (gsm_rr_csn_flag(tvb, subtree, bit_offset++, hf_gsm_a_rr_si_2quater_extension_information))
    { /* SI 2quater Extension Information */
        bit_offset_sav = bit_offset;
        subtree2 = proto_tree_add_subtree(subtree, tvb, bit_offset>>3, -1, ett_gsm_rr_rest_octets_elem[DE_RR_REST_OCTETS_SI2Q_EXT_INFO], &item2,
                                gsm_rr_rest_octets_elem_strings[DE_RR_REST_OCTETS_SI2Q_EXT_INFO]);
        idx = tvb_get_bits8(tvb,bit_offset,8);
        proto_tree_add_uint(subtree2, hf_gsm_a_rr_extension_length, tvb, bit_offset>>3, 1, idx);
        bit_offset += 8;
        proto_item_set_len(item2,((bit_offset+idx+1)>>3) - (bit_offset_sav>>3)+1);
        if (gsm_rr_csn_flag(tvb, subtree2, bit_offset++, hf_gsm_a_rr_ccn_support_description))
        { /* CCN Support Description */
            bit_offset_sav = bit_offset;
            subtree3 = proto_tree_add_subtree(subtree2, tvb, bit_offset>>3, -1, ett_gsm_rr_rest_octets_elem[DE_RR_REST_OCTETS_CCN_SUPPORT_DESC], &item3,
                                        gsm_rr_rest_octets_elem_strings[DE_RR_REST_OCTETS_CCN_SUPPORT_DESC]);
            value = tvb_get_bits8(tvb,bit_offset,7);
            proto_tree_add_uint(subtree3, hf_gsm_a_rr_number_cells, tvb, bit_offset>>3, 1, value);
            bit_offset += 7;
            idx -= 7;
            item2 = proto_tree_add_bytes_format(subtree3, hf_gsm_a_rr_ccn_supported, tvb, bit_offset>>3, (value>>3)+1, NULL, "CCN Supported: ");
            while (value)
            {
                proto_item_append_text(item2,"%d",tvb_get_bits8(tvb,bit_offset,1));
                bit_offset += 1;
                value -= 1;
                idx -= 1;
            }
            proto_item_set_len(item3, (bit_offset>>3) - (bit_offset_sav>>3)+1);
        }
        bit_offset += idx;
    }
    if (gsm_rr_csn_flag(tvb, subtree, bit_offset++, hf_gsm_a_rr_3g_neighbour_cell_description))
    { /* 3G Neighbour Cell Description */
        bit_offset_sav = bit_offset;
        subtree2 = proto_tree_add_subtree(subtree, tvb, bit_offset>>3, -1, ett_gsm_rr_rest_octets_elem[DE_RR_REST_OCTETS_3G_NEIGH_CELL_DESC], &item2,
                                    gsm_rr_rest_octets_elem_strings[DE_RR_REST_OCTETS_3G_NEIGH_CELL_DESC]);
        if (gsm_rr_csn_flag(tvb, subtree2, bit_offset++, hf_gsm_a_rr_index_start_3g))
        {
            proto_tree_add_bits_item(subtree2, hf_gsm_a_rr_index_start_3g, tvb, bit_offset, 7, ENC_BIG_ENDIAN);
            bit_offset += 7;
        }
        if (gsm_rr_csn_flag(tvb, subtree2, bit_offset++, hf_gsm_a_rr_absolute_index_start_emr))
        {
            proto_tree_add_bits_item(subtree2, hf_gsm_a_rr_absolute_index_start_emr, tvb, bit_offset, 7, ENC_BIG_ENDIAN);
            bit_offset += 7;
        }
        if (gsm_rr_csn_flag(tvb, subtree2, bit_offset++, hf_gsm_a_rr_utran_fdd_description))
        { /* UTRAN FDD Description */
            bit_offset += de_rr_si2quater_meas_info_utran_fdd_desc(tvb, subtree2, bit_offset);
        }
        if (gsm_rr_csn_flag(tvb, subtree2, bit_offset++, hf_gsm_a_rr_utran_tdd_description))
        { /* UTRAN TDD Description */
            bit_offset += de_rr_si2quater_meas_info_utran_tdd_desc(tvb, subtree2, bit_offset);
        }
        proto_item_set_len(item2, (bit_offset>>3) - (bit_offset_sav>>3)+1);
    }
    if (gsm_rr_csn_flag(tvb, subtree, bit_offset++, hf_gsm_a_rr_3g_measurement_parameters_description))
    { /* 3G Measurement Parameters Description */
        bit_offset_sav = bit_offset;
        subtree2 = proto_tree_add_subtree(subtree, tvb, bit_offset>>3, -1, ett_gsm_rr_rest_octets_elem[DE_RR_REST_OCTETS_3G_MEAS_PARAM_DESC], &item2,
                                gsm_rr_rest_octets_elem_strings[DE_RR_REST_OCTETS_3G_MEAS_PARAM_DESC]);
        proto_tree_add_bits_item(subtree2, hf_gsm_a_rr_qsearch_i, tvb, bit_offset, 4, ENC_BIG_ENDIAN);
        bit_offset += 4;
        proto_tree_add_bits_item(subtree2, hf_gsm_a_rr_qsearch_c_initial, tvb, bit_offset, 1, ENC_BIG_ENDIAN);
        bit_offset += 1;
        if (gsm_rr_csn_flag(tvb, subtree2, bit_offset++, hf_gsm_a_rr_fdd_information))
        {
            proto_tree_add_bits_item(subtree2, hf_gsm_a_rr_fdd_qoffset, tvb, bit_offset, 4, ENC_BIG_ENDIAN);
            bit_offset += 4;
            proto_tree_add_bits_item(subtree2, hf_gsm_a_rr_fdd_rep_quant, tvb, bit_offset, 1, ENC_BIG_ENDIAN);
            bit_offset += 1;
            proto_tree_add_bits_item(subtree2, hf_gsm_a_rr_fdd_multirat_reporting, tvb, bit_offset, 2, ENC_BIG_ENDIAN);
            bit_offset += 2;
            proto_tree_add_bits_item(subtree2, hf_gsm_a_rr_fdd_qmin, tvb, bit_offset, 3, ENC_BIG_ENDIAN);
            bit_offset += 3;
        }
        if (gsm_rr_csn_flag(tvb, subtree2, bit_offset++, hf_gsm_a_rr_tdd_information))
        {
            proto_tree_add_bits_item(subtree2, hf_gsm_a_rr_tdd_qoffset, tvb, bit_offset, 4, ENC_BIG_ENDIAN);
            bit_offset += 4;
            proto_tree_add_bits_item(subtree2, hf_gsm_a_rr_tdd_multirat_reporting, tvb, bit_offset, 2, ENC_BIG_ENDIAN);
            bit_offset += 2;
        }
        proto_item_set_len(item2, (bit_offset>>3) - (bit_offset_sav>>3)+1);
    }
    if (gsm_rr_csn_flag(tvb, subtree, bit_offset++, hf_gsm_a_rr_gprs_3g_measurement_parameters_description))
    { /* GPRS 3G Measurement Parameters Description */
        uint8_t reporting_quant = 0;
        bit_offset_sav = bit_offset;
        subtree2 = proto_tree_add_subtree(subtree, tvb, bit_offset>>3, -1, ett_gsm_rr_rest_octets_elem[DE_RR_REST_OCTETS_GPRS_3G_MEAS_PARAM_DESC], &item2,
                                gsm_rr_rest_octets_elem_strings[DE_RR_REST_OCTETS_GPRS_3G_MEAS_PARAM_DESC]);
        proto_tree_add_bits_item(subtree2, hf_gsm_a_rr_qsearch_p, tvb, bit_offset, 4, ENC_BIG_ENDIAN);
        bit_offset += 4;
        proto_tree_add_bits_item(subtree2, hf_gsm_a_rr_3g_search_prio, tvb, bit_offset, 1, ENC_BIG_ENDIAN);
        bit_offset += 1;
        if (gsm_rr_csn_flag(tvb, subtree2, bit_offset++, hf_gsm_a_rr_fdd_parameters))
        {
            proto_tree_add_bits_item(subtree2, hf_gsm_a_rr_fdd_rep_quant, tvb, bit_offset, 1, ENC_BIG_ENDIAN);
            reporting_quant = gsm_rr_csn_flag(tvb, subtree2, bit_offset++, hf_gsm_a_rr_reporting_quantity_present);
            proto_tree_add_bits_item(subtree2, hf_gsm_a_rr_fdd_multirat_reporting, tvb, bit_offset, 2, ENC_BIG_ENDIAN);
            bit_offset += 2;
        }
        if (gsm_rr_csn_flag(tvb, subtree2, bit_offset++, hf_gsm_a_rr_fdd_reporting_parameters))
        {
            proto_tree_add_bits_item(subtree2, hf_gsm_a_rr_fdd_reporting_offset, tvb, bit_offset, 3, ENC_BIG_ENDIAN);
            bit_offset += 3;
            if (reporting_quant == 0)
            {
              proto_tree_add_bits_item(subtree2, hf_gsm_a_rr_fdd_reporting_threshold_rscp, tvb, bit_offset, 3, ENC_BIG_ENDIAN);
            }
            else
            {
              proto_tree_add_bits_item(subtree2, hf_gsm_a_rr_fdd_reporting_threshold_ecn0, tvb, bit_offset, 3, ENC_BIG_ENDIAN);
            }
            bit_offset += 3;
        }
        if (gsm_rr_csn_flag(tvb, subtree2, bit_offset++, hf_gsm_a_rr_tdd_multirat_reporting_present))
        {
            proto_tree_add_bits_item(subtree2, hf_gsm_a_rr_tdd_multirat_reporting, tvb, bit_offset, 2, ENC_BIG_ENDIAN);
            bit_offset += 2;
        }
        if (gsm_rr_csn_flag(tvb, subtree2, bit_offset++, hf_gsm_a_rr_tdd_reporting_parameters))
        {
            proto_tree_add_bits_item(subtree2, hf_gsm_a_rr_tdd_reporting_offset, tvb, bit_offset, 3, ENC_BIG_ENDIAN);
            bit_offset += 3;
            if (reporting_quant == 0)
            {
              proto_tree_add_bits_item(subtree2, hf_gsm_a_rr_tdd_reporting_threshold_rscp, tvb, bit_offset, 3, ENC_BIG_ENDIAN);
            }
            else
            {
              proto_tree_add_bits_item(subtree2, hf_gsm_a_rr_tdd_reporting_threshold_ecn0, tvb, bit_offset, 3, ENC_BIG_ENDIAN);
            }
            bit_offset += 3;
        }
        proto_item_set_len(item2, (bit_offset>>3) - (bit_offset_sav>>3)+1);
    }
    /* Null breakpoint */
    if (bit_len - bit_offset > 0)
    {
        /* There is still room left in the Rest Octets IE */
        if (gsm_rr_csn_HL_flag(tvb, subtree, 0, bit_offset++, hf_gsm_a_rr_additions_in_rel_5))
        { /* Additions in Rel-5 */
            if (gsm_rr_csn_flag(tvb, subtree, bit_offset++, hf_gsm_a_rr_3g_additional_measurement_parameters_description))
            { /* 3G Additional Measurement Parameters Description */
                bit_offset_sav = bit_offset;
                subtree2 = proto_tree_add_subtree(subtree, tvb, bit_offset>>3, -1, ett_gsm_rr_rest_octets_elem[DE_RR_REST_OCTETS_3G_ADD_MEAS_PARAM_DESC], &item2,
                                        gsm_rr_rest_octets_elem_strings[DE_RR_REST_OCTETS_3G_ADD_MEAS_PARAM_DESC]);
                proto_tree_add_bits_item(subtree2, hf_gsm_a_rr_fdd_qmin_offset, tvb, bit_offset, 3, ENC_BIG_ENDIAN);
                bit_offset += 3;
                proto_tree_add_bits_item(subtree2, hf_gsm_a_rr_fdd_rscpmin, tvb, bit_offset, 4, ENC_BIG_ENDIAN);
                bit_offset += 4;
                proto_item_set_len(item2, (bit_offset>>3) - (bit_offset_sav>>3)+1);
            }
            if (gsm_rr_csn_flag(tvb, subtree, bit_offset++, hf_gsm_a_rr_3g_additional_measurement_parameters_description_2))
            { /* 3G Additional Measurement Parameters Description 2 */
                bit_offset += de_rr_3g_add_meas_param_desc2(tvb, subtree, bit_offset);
            }
            /* Null breakpoint */
            if (bit_len - bit_offset > 0)
            {
                /* There is still room left in the Rest Octets IE */
                if (gsm_rr_csn_HL_flag(tvb, subtree, 0, bit_offset++, hf_gsm_a_rr_additions_in_rel_6))
                { /* Additions in Rel-6 */
                    proto_tree_add_bits_item(subtree, hf_gsm_a_rr_3g_ccn_active, tvb, bit_offset, 1, ENC_BIG_ENDIAN);
                    bit_offset += 1;

                    /* Null breakpoint */
                    if (bit_len - bit_offset > 0)
                    {
                        /* There is still room left in the Rest Octets IE */
                        if (gsm_rr_csn_HL_flag(tvb, subtree, 0, bit_offset++, hf_gsm_a_rr_additions_in_rel_7))
                        { /* Additions in Rel-7 */
                            if (gsm_rr_csn_flag(tvb, subtree, bit_offset++, hf_gsm_a_rr_700_reporting))
                            {
                                proto_tree_add_bits_item(subtree, hf_gsm_a_rr_700_reporting_offset, tvb, bit_offset, 3, ENC_BIG_ENDIAN);
                                bit_offset += 3;
                                proto_tree_add_bits_item(subtree, hf_gsm_a_rr_700_reporting_threshold, tvb, bit_offset, 3, ENC_BIG_ENDIAN);
                                bit_offset += 3;
                            }
                            if (gsm_rr_csn_flag(tvb, subtree, bit_offset++, hf_gsm_a_rr_810_reporting))
                            {
                                proto_tree_add_bits_item(subtree, hf_gsm_a_rr_810_reporting_offset, tvb, bit_offset, 3, ENC_BIG_ENDIAN);
                                bit_offset += 3;
                                proto_tree_add_bits_item(subtree, hf_gsm_a_rr_810_reporting_threshold, tvb, bit_offset, 3, ENC_BIG_ENDIAN);
                                bit_offset += 3;
                            }

                            /* Null breakpoint */
                            if (bit_len - bit_offset > 0)
                            {
                              /* There is still room left in the Rest Octets IE */
                              if (gsm_rr_csn_HL_flag(tvb, subtree, 0, bit_offset++, hf_gsm_a_rr_additions_in_rel_8))
                              { /* Additions in Rel-8 */
                                if (gsm_rr_csn_flag(tvb, subtree, bit_offset++, hf_gsm_a_rr_priority_and_eutran_param_description))
                                {
                                  bit_offset += de_rr_priority_and_eutran_param_desc(tvb, subtree, bit_offset);
                                }
                                if (gsm_rr_csn_flag(tvb, subtree, bit_offset++, hf_gsm_a_rr_3g_csg_description))
                                {
                                  bit_offset += de_rr_3g_csg_desc(tvb, subtree, bit_offset);
                                }
                                if (gsm_rr_csn_flag(tvb, subtree, bit_offset++, hf_gsm_a_rr_eutran_csg_description))
                                {
                                  bit_offset += de_rr_eutran_csg_desc(tvb, subtree, bit_offset);
                                }
                              }
                            }
                        }
                    }
                }
            }
        }
    }
    gsm_rr_padding_bits(subtree, tvb, bit_offset, tvb_len, PADDING_BYTE);
    return tvb_len - offset;
}

/*
 * [3] 10.5.2.34 SI 3 Rest Octets
 */
static const value_string gsm_a_rr_temporary_offset_vals[] = {
    { 0, "0 dB"},
    { 1, "10 dB"},
    { 2, "20 dB"},
    { 3, "30 dB"},
    { 4, "40 dB"},
    { 5, "50 dB"},
    { 6, "60 dB"},
    { 7, "infinity"},
    { 0, NULL }
};

static const value_string gsm_a_rr_cell_reselect_offset_vals[] = {
    { 0, "0 dB"},
    { 1, "2 dB"},
    { 2, "4 dB"},
    { 3, "6 dB"},
    { 4, "8 dB"},
    { 5, "10 dB"},
    { 6, "12 dB"},
    { 7, "14 dB"},
    { 8, "16 dB"},
    { 9, "18 dB"},
    {10, "20 dB"},
    {11, "22 dB"},
    {12, "24 dB"},
    {13, "26 dB"},
    {14, "28 dB"},
    {15, "30 dB"},
    {16, "32 dB"},
    {17, "34 dB"},
    {18, "36 dB"},
    {19, "38 dB"},
    {20, "40 dB"},
    {21, "42 dB"},
    {22, "44 dB"},
    {23, "46 dB"},
    {24, "48 dB"},
    {25, "50 dB"},
    {26, "52 dB"},
    {27, "54 dB"},
    {28, "56 dB"},
    {29, "58 dB"},
    {30, "60 dB"},
    {31, "62 dB"},
    {32, "64 dB"},
    {33, "66 dB"},
    {34, "68 dB"},
    {35, "70 dB"},
    {36, "72 dB"},
    {37, "74 dB"},
    {38, "76 dB"},
    {39, "78 dB"},
    {40, "80 dB"},
    {41, "82 dB"},
    {42, "84 dB"},
    {43, "86 dB"},
    {44, "88 dB"},
    {45, "90 dB"},
    {46, "92 dB"},
    {47, "94 dB"},
    {48, "96 dB"},
    {49, "98 dB"},
    {50, "100 dB"},
    {51, "102 dB"},
    {52, "104 dB"},
    {53, "106 dB"},
    {54, "108 dB"},
    {55, "110 dB"},
    {56, "112 dB"},
    {57, "114 dB"},
    {58, "116 dB"},
    {59, "118 dB"},
    {60, "120 dB"},
    {61, "122 dB"},
    {62, "124 dB"},
    {63, "126 dB"},
    { 0, NULL }
};
static value_string_ext gsm_a_rr_cell_reselect_offset_vals_ext = VALUE_STRING_EXT_INIT(gsm_a_rr_cell_reselect_offset_vals);


static const value_string gsm_a_rr_penalty_time_vals[] = {
    { 0, "20 s"},
    { 1, "40 s"},
    { 2, "60 s"},
    { 3, "80 s"},
    { 4, "100 s"},
    { 5, "120 s"},
    { 6, "140 s"},
    { 7, "160 s"},
    { 8, "180 s"},
    { 9, "200 s"},
    {10, "220 s"},
    {11, "240 s"},
    {12, "260 s"},
    {13, "280 s"},
    {14, "300 s"},
    {15, "320 s"},
    {16, "340 s"},
    {17, "360 s"},
    {18, "380 s"},
    {19, "400 s"},
    {20, "420 s"},
    {21, "440 s"},
    {22, "460 s"},
    {23, "480 s"},
    {24, "500 s"},
    {25, "520 s"},
    {26, "540 s"},
    {27, "560 s"},
    {28, "580 s"},
    {29, "600 s"},
    {30, "620 s"},
    {31, "Cell Reselect Offset is subtracted from C2 and Temporary Offset is ignored"},
    { 0, NULL }
};

static int
de_rr_rest_oct_opt_sel_param(tvbuff_t *tvb, proto_tree *tree, int bit_offset)
{
    proto_tree *subtree;
    proto_item *item;
    int         curr_bit_offset;

    curr_bit_offset = bit_offset;

    if (gsm_rr_csn_HL_flag(tvb, tree, 0, curr_bit_offset++, hf_gsm_a_rr_selection_parameters))
    { /* Selection Parameters */
        subtree = proto_tree_add_subtree(tree, tvb, curr_bit_offset>>3, -1, ett_gsm_rr_rest_octets_elem[DE_RR_REST_OCTETS_OPTIONAL_SEL_PARAM], &item,
                            gsm_rr_rest_octets_elem_strings[DE_RR_REST_OCTETS_OPTIONAL_SEL_PARAM]);
        proto_tree_add_bits_item(subtree, hf_gsm_a_rr_cbq, tvb, curr_bit_offset, 1, ENC_BIG_ENDIAN);
        curr_bit_offset += 1;
        proto_tree_add_bits_item(subtree, hf_gsm_a_rr_cell_reselect_offset, tvb, curr_bit_offset, 6, ENC_BIG_ENDIAN);
        curr_bit_offset += 6;
        proto_tree_add_bits_item(subtree, hf_gsm_a_rr_temporary_offset, tvb, curr_bit_offset, 3, ENC_BIG_ENDIAN);
        curr_bit_offset += 3;
        proto_tree_add_bits_item(subtree, hf_gsm_a_rr_penalty_time, tvb, curr_bit_offset, 5, ENC_BIG_ENDIAN);
        curr_bit_offset += 5;
        proto_item_set_len(item,((curr_bit_offset>>3) - (bit_offset>>3) + 1));
    }

    return (curr_bit_offset - bit_offset);
}

static const value_string gsm_a_rr_si13_position_vals[] = {
    { 0, "SYSTEM INFORMATION TYPE 13 message is sent on BCCH Norm"},
    { 1, "SYSTEM INFORMATION TYPE 13 message is sent on BCCH Ext"},
    { 0, NULL }
};

static int
de_rr_rest_oct_gprs_indicator(tvbuff_t *tvb, proto_tree *tree, int bit_offset)
{
    proto_tree *subtree;
    int         curr_bit_offset;

    curr_bit_offset = bit_offset;

    subtree = proto_tree_add_subtree(tree, tvb, curr_bit_offset>>3, 1, ett_gsm_rr_rest_octets_elem[DE_RR_REST_OCTETS_GPRS_INDICATOR], NULL,
                            gsm_rr_rest_octets_elem_strings[DE_RR_REST_OCTETS_GPRS_INDICATOR]);
    proto_tree_add_bits_item(subtree, hf_gsm_a_rr_gprs_ra_colour, tvb, curr_bit_offset, 3, ENC_BIG_ENDIAN);
    curr_bit_offset += 3;
    proto_tree_add_bits_item(subtree, hf_gsm_a_rr_si13_position, tvb, curr_bit_offset, 1, ENC_BIG_ENDIAN);
    curr_bit_offset += 1;

    return (curr_bit_offset - bit_offset);
}

static const value_string gsm_a_rr_power_offset_vals[] = {
    { 0, "0 dB"},
    { 1, "2 dB"},
    { 2, "4 dB"},
    { 3, "8 dB"},
    { 0, NULL }
};

static const true_false_string gsm_a_rr_si2quater_position_value = {
    "SYSTEM INFORMATION TYPE 2 quater message is sent on BCCH Ext",
    "SYSTEM INFORMATION TYPE 2 quater message is sent on BCCH Norm"
};

static const true_false_string gsm_a_rr_si13alt_position_value = {
    "If Iu mode is supported in the cell, SYSTEM INFORMATION TYPE 13alt message is sent on BCCH Ext",
    "If Iu mode is supported in the cell, SYSTEM INFORMATION TYPE 13alt message is sent on BCCH Norm"
};

static const true_false_string gsm_a_rr_si21_position_value = {
    "SYSTEM INFORMATION TYPE 21 message is sent on BCCH Ext",
    "SYSTEM INFORMATION TYPE 21 message is sent on BCCH Norm"
    };

static uint16_t
de_rr_si3_rest_oct(tvbuff_t *tvb, proto_tree *subtree, packet_info *pinfo _U_, uint32_t offset, unsigned len _U_, char *add_string _U_, int string_len _U_)
{
    uint32_t curr_offset;
    int      bit_offset;
    bool gprs_indicator;
    uint8_t  tvb_len = tvb_reported_length(tvb);

    curr_offset = offset;
    bit_offset = curr_offset << 3;

    bit_offset += de_rr_rest_oct_opt_sel_param(tvb, subtree, bit_offset);

    if (gsm_rr_csn_HL_flag(tvb, subtree, 0, bit_offset++, hf_gsm_a_rr_power_offset_present))
    { /* Optional Power Offset */
        proto_tree_add_bits_item(subtree, hf_gsm_a_rr_power_offset, tvb, bit_offset, 2, ENC_BIG_ENDIAN);
        bit_offset += 2;
    }
    (void) gsm_rr_csn_HL_flag(tvb, subtree, 0, bit_offset++, hf_gsm_a_rr_system_information_type_2ter);
    (void) gsm_rr_csn_HL_flag(tvb, subtree, 0, bit_offset++, hf_gsm_a_rr_early_classmark_sending);
    if (gsm_rr_csn_HL_flag(tvb, subtree, 0, bit_offset++, hf_gsm_a_rr_scheduling_if_and_where))
    { /* Scheduling if and where */
        proto_tree_add_bits_item(subtree, hf_gsm_a_rr_where, tvb, bit_offset, 3, ENC_BIG_ENDIAN);
        bit_offset += 3;
    }
    gprs_indicator = gsm_rr_csn_HL_flag(tvb, subtree, 0, bit_offset++, hf_gsm_a_rr_gprs_indicator);
    if (gprs_indicator)
    { /* GPRS indicator */
        bit_offset += de_rr_rest_oct_gprs_indicator(tvb, subtree, bit_offset);
    }
    (void) gsm_rr_csn_HL_flag(tvb, subtree, 0, bit_offset++, hf_gsm_a_rr_3g_early_classmark_sending_restriction);
    if (gsm_rr_csn_HL_flag(tvb, subtree, 0, bit_offset++, hf_gsm_a_rr_si2quater_indicator))
    { /* SI2quater Indicator */
        proto_tree_add_bits_item(subtree, hf_gsm_a_rr_si2quater_position, tvb, bit_offset, 1, ENC_BIG_ENDIAN);
        bit_offset += 1;
    }
    if (gprs_indicator == false)
    {
        proto_tree_add_bits_item(subtree, hf_gsm_a_rr_si13alt_position, tvb, bit_offset, 1, ENC_BIG_ENDIAN);
        bit_offset += 1;
    }
    if (gsm_rr_csn_HL_flag(tvb, subtree, 0, bit_offset++, hf_gsm_a_rr_si21_indicator))
        { /* SI21 Indicator */
        proto_tree_add_bits_item(subtree, hf_gsm_a_rr_si21_position, tvb, bit_offset, 1, ENC_BIG_ENDIAN);
        bit_offset += 1;
    }
    gsm_rr_padding_bits(subtree, tvb, bit_offset, tvb_len, PADDING_BYTE);
    return tvb_len - offset;
}

/*
 * [3] 10.5.2.32 SI 4 Rest Octets
 */
static const value_string gsm_a_rr_prio_thr_vals[] = {
    { 0, "0 dB"},
    { 1, "6 dB"},
    { 2, "12 dB"},
    { 3, "18 dB"},
    { 4, "24 dB"},
    { 5, "30 dB"},
    { 6, "36 dB"},
    { 7, "Infinite"},
    { 0, NULL }
};

static const value_string gsm_a_rr_lsa_offset_vals[] = {
    { 0, "0 dB"},
    { 1, "4 dB"},
    { 2, "8 dB"},
    { 3, "16 dB"},
    { 4, "24 dB"},
    { 5, "32 dB"},
    { 6, "48 dB"},
    { 7, "64 dB"},
    { 0, NULL }
};

static uint16_t
de_rr_si4_rest_oct(tvbuff_t *tvb, proto_tree *subtree, packet_info *pinfo _U_, uint32_t offset, unsigned len, char *add_string _U_, int string_len _U_)
{
    proto_tree *subtree2, *subtree3;
    proto_item *item2, *item3;
    uint32_t    curr_offset;
    int         bit_offset, bit_offset_sav;
    uint8_t     tvb_len = tvb_reported_length(tvb);
    uint16_t    bit_len = tvb_len << 3;

    curr_offset = offset;
    bit_offset = curr_offset << 3;

    subtree2 = proto_tree_add_subtree(subtree, tvb, bit_offset>>3, -1, ett_gsm_rr_rest_octets_elem[DE_RR_REST_OCTETS_SI4_REST_OCTETS_O], &item2,
                            gsm_rr_rest_octets_elem_strings[DE_RR_REST_OCTETS_SI4_REST_OCTETS_O]);

    bit_offset += de_rr_rest_oct_opt_sel_param(tvb, subtree2, bit_offset);

    if (gsm_rr_csn_HL_flag(tvb, subtree2, bit_len, bit_offset++, hf_gsm_a_rr_power_offset_present))
    { /* Optional Power Offset */
        proto_tree_add_bits_item(subtree2, hf_gsm_a_rr_power_offset, tvb, bit_offset, 2, ENC_BIG_ENDIAN);
        bit_offset += 2;
    }
    if (gsm_rr_csn_HL_flag(tvb, subtree2, bit_len, bit_offset++, hf_gsm_a_rr_gprs_indicator))
    {
        bit_offset += de_rr_rest_oct_gprs_indicator(tvb, subtree2, bit_offset);
    }
    proto_item_set_len(item2,(bit_offset>>3) + 1 - curr_offset);

    if (gsm_rr_csn_HL_flag(tvb, subtree, bit_len, bit_offset++, hf_gsm_a_rr_si4_rest_octets_s))
    { /* SI4 Rest Octets_S */
        bit_offset_sav = bit_offset;
        subtree2 = proto_tree_add_subtree(subtree, tvb, bit_offset>>3, -1, ett_gsm_rr_rest_octets_elem[DE_RR_REST_OCTETS_SI4_REST_OCTETS_S], &item2,
                                    gsm_rr_rest_octets_elem_strings[DE_RR_REST_OCTETS_SI4_REST_OCTETS_S]);

        if (gsm_rr_csn_HL_flag(tvb, subtree2, bit_len, bit_offset++, hf_gsm_a_rr_lsa_parameters))
        { /* LSA Parameters */
            subtree3 = proto_tree_add_subtree(subtree2, tvb, bit_offset>>3, -1, ett_gsm_rr_rest_octets_elem[DE_RR_REST_OCTETS_LSA_PARAMETERS], &item3,
                                gsm_rr_rest_octets_elem_strings[DE_RR_REST_OCTETS_LSA_PARAMETERS]);
            proto_tree_add_bits_item(subtree3, hf_gsm_a_rr_prio_thr, tvb, bit_offset, 3, ENC_BIG_ENDIAN);
            bit_offset += 3;
            proto_tree_add_bits_item(subtree3, hf_gsm_a_rr_lsa_offset, tvb, bit_offset, 3, ENC_BIG_ENDIAN);
            bit_offset += 3;
            if (gsm_rr_csn_flag(tvb,subtree3, bit_offset++, hf_gsm_a_rr_mcc_mnc_parameters))
            {
                proto_tree_add_bits_item(subtree3, hf_gsm_a_rr_mcc, tvb, bit_offset, 12, ENC_BIG_ENDIAN);
                bit_offset += 12;
                proto_tree_add_bits_item(subtree3, hf_gsm_a_rr_mnc, tvb, bit_offset, 12, ENC_BIG_ENDIAN);
                bit_offset += 12;
            }
            proto_item_set_len(item2, (bit_offset>>3) - (bit_offset_sav>>3)+1);
        }

        if (gsm_rr_csn_HL_flag(tvb, subtree2, bit_len, bit_offset++, hf_gsm_a_rr_cell_id_present))
        { /* Cell Identity */
            proto_tree_add_bits_item(subtree2, hf_gsm_a_rr_cell_id, tvb, bit_offset, 16, ENC_BIG_ENDIAN);
            bit_offset += 16;
        }

        if (gsm_rr_csn_HL_flag(tvb, subtree2, bit_len, bit_offset++, hf_gsm_a_rr_lsa_id_information))
        { /* LSA ID information */
            subtree3 = proto_tree_add_subtree(subtree2, tvb, bit_offset>>3, len, ett_gsm_rr_rest_octets_elem[DE_RR_REST_OCTETS_LSA_ID_INFO], &item3,
                                                    gsm_rr_rest_octets_elem_strings[DE_RR_REST_OCTETS_LSA_ID_INFO]);
            do
            {
                if (gsm_rr_csn_flag(tvb, subtree, bit_offset++, hf_gsm_a_rr_lsa_id_type))
                {
                    proto_tree_add_bits_item(subtree3, hf_gsm_a_rr_short_lsa_id, tvb, bit_offset, 10, ENC_BIG_ENDIAN);
                    bit_offset += 10;
                }
                else
                {
                    proto_tree_add_bits_item(subtree3, hf_gsm_a_rr_lsa_id, tvb, bit_offset, 24, ENC_BIG_ENDIAN);
                    bit_offset += 24;
                }
            } while (gsm_rr_csn_flag(tvb, subtree, bit_offset++, hf_gsm_a_rr_additional_lsa_id));
        }
        if (gsm_rr_csn_HL_flag(tvb, subtree, bit_len, bit_offset++, hf_gsm_a_rr_cbq3_present))
        {
            proto_tree_add_bits_item(subtree, hf_gsm_a_rr_cbq3, tvb, bit_offset, 2, ENC_BIG_ENDIAN);
            bit_offset += 3;
        }
        if (gsm_rr_csn_flag(tvb, subtree, bit_offset++, hf_gsm_a_rr_si13alt_position_present))
        {
            proto_tree_add_bits_item(subtree, hf_gsm_a_rr_si13alt_position, tvb, bit_offset, 1, ENC_BIG_ENDIAN);
            bit_offset += 1;
        }
        proto_item_set_len(item2, (bit_offset>>3) - (bit_offset_sav>>3)+1);
    }
    else
    { /* Break indicator */
        (void) gsm_rr_csn_HL_flag(tvb, subtree, bit_len, bit_offset++, hf_gsm_a_rr_break_indicator);
    }
    /* Truncation allowed (see 44.018 section 8.9 */
    gsm_rr_padding_bits(subtree, tvb, bit_offset, tvb_len, PADDING_BYTE);
    return tvb_len - offset;
}

/*
 * [3] 10.5.2.35a SI 6 Rest Octets
 */
static const true_false_string gsm_a_rr_paging_channel_restructuring_value = {
    "Paging channel is restructured",
    "Paging channel is not restructured"
};

static const true_false_string gsm_a_rr_vbs_vgcs_inband_notifications_value = {
    "The mobile shall be notified on incoming high priority VBS/VGCS calls through NOTIFICATION/FACCH, the mobile need not to inspect the NCH",
    "The network does not provide notification on FACCH so that the mobile should inspect the NCH for notifications"
};

static const true_false_string gsm_a_rr_vbs_vgcs_inband_pagings_value = {
    "The mobile shall be notified on incoming high priority point-to-point calls through NOTIFICATION/FACCH, the mobile need not to inspect the PCH",
    "The network does not provide paging information on FACCH so that the mobile should inspect the PCH for pagings"
};

static const value_string gsm_a_rr_max_lapdm_vals[] = {
    { 0, "Any message segmented in up to 5 LAPDm frames"},
    { 1, "Any message segmented in up to 6 LAPDm frames"},
    { 2, "Any message segmented in up to 7 LAPDm frames"},
    { 3, "Any message segmented in up to 8 LAPDm frames"},
    { 4, "Any message segmented in up to 9 LAPDm frames"},
    { 5, "Any message segmented in up to 10 LAPDm frames"},
    { 6, "Any message segmented in up to 11 LAPDm frames"},
    { 7, "Any message segmented in up to 12 LAPDm frames"},
    { 0, NULL }
};

static const true_false_string gsm_a_rr_dedicated_mode_mbms_notification_support_value = {
    "The cell supports the Dedicated Mode MBMS Notification procedures",
    "The cell does not support the Dedicated Mode MBMS Notification procedures"
};

static const true_false_string gsm_a_rr_mnci_support_value = {
    "The cell supports the distribution of MBMS NEIGHBOURING CELL INFORMATION messages",
    "The cell does not support the distribution of MBMS NEIGHBOURING CELL INFORMATION messages"
};

static uint16_t
de_rr_si6_rest_oct(tvbuff_t *tvb, proto_tree *subtree, packet_info *pinfo _U_, uint32_t offset, unsigned len _U_, char *add_string _U_, int string_len _U_)
{
    proto_tree *subtree2;
    proto_item *item2;
    uint32_t    curr_offset;
    int         bit_offset, bit_offset_sav;
    uint8_t     value;
    uint8_t     tvb_len = tvb_reported_length(tvb);

    curr_offset = offset;
    bit_offset = curr_offset << 3;

    if (gsm_rr_csn_HL_flag(tvb, subtree, 0, bit_offset++, hf_gsm_a_rr_pch_and_nch_info))
    { /* PCH and NCH Info */
        bit_offset_sav = bit_offset;
        subtree2 = proto_tree_add_subtree(subtree, tvb, bit_offset>>3, -1, ett_gsm_rr_rest_octets_elem[DE_RR_REST_OCTETS_PCH_AND_NCH_INFO], &item2,
                        gsm_rr_rest_octets_elem_strings[DE_RR_REST_OCTETS_PCH_AND_NCH_INFO]);
        proto_tree_add_bits_item(subtree2, hf_gsm_a_rr_paging_channel_restructuring, tvb, bit_offset, 1, ENC_BIG_ENDIAN);
        bit_offset += 1;
        proto_tree_add_bits_item(subtree2, hf_gsm_a_rr_nln_sacch, tvb, bit_offset, 2, ENC_BIG_ENDIAN);
        bit_offset += 2;
        if (gsm_rr_csn_flag(tvb, subtree, bit_offset++, hf_gsm_a_call_prio_present))
        {
            proto_tree_add_bits_item(subtree2, hf_gsm_a_call_prio, tvb, bit_offset, 3, ENC_BIG_ENDIAN);
            bit_offset += 3;
        }
        proto_tree_add_bits_item(subtree2, hf_gsm_a_rr_nln_status_sacch, tvb, bit_offset, 1, ENC_BIG_ENDIAN);
        bit_offset += 1;
        proto_item_set_len(item2, (bit_offset>>3) - (bit_offset_sav>>3)+1);
    }
    if (gsm_rr_csn_HL_flag(tvb, subtree, 0, bit_offset++, hf_gsm_a_rr_vbs_vgcs_options))
    { /* VBS/VGCS options */
        bit_offset_sav = bit_offset;
        subtree2 = proto_tree_add_subtree(subtree, tvb,bit_offset>>3, -1, ett_gsm_rr_rest_octets_elem[DE_RR_REST_OCTETS_VBS_VGCS_OPTIONS], &item2,
                        gsm_rr_rest_octets_elem_strings[DE_RR_REST_OCTETS_VBS_VGCS_OPTIONS]);
        proto_tree_add_bits_item(subtree2, hf_gsm_a_rr_vbs_vgcs_inband_notifications, tvb, bit_offset, 1, ENC_BIG_ENDIAN);
        bit_offset += 1;
        proto_tree_add_bits_item(subtree2, hf_gsm_a_rr_vbs_vgcs_inband_pagings, tvb, bit_offset, 1, ENC_BIG_ENDIAN);
        bit_offset += 1;
        proto_item_set_len(item2, (bit_offset>>3) - (bit_offset_sav>>3)+1);
    }
    value = gsm_rr_csn_HL_flag(tvb, subtree, 0, bit_offset++, hf_gsm_a_rr_dtm);
    if (value == true)
    {
        proto_tree_add_bits_item(subtree, hf_gsm_a_rr_rac, tvb, bit_offset, 8, ENC_BIG_ENDIAN);
        bit_offset += 8;
        proto_tree_add_bits_item(subtree, hf_gsm_a_rr_max_lapdm, tvb, bit_offset, 3, ENC_BIG_ENDIAN);
        bit_offset += 3;
    }
    (void) gsm_rr_csn_HL_flag(tvb, subtree, 0, bit_offset++, hf_gsm_a_rr_band_indicator);
    if (gsm_rr_csn_HL_flag(tvb, subtree, 0, bit_offset++, hf_gsm_a_rr_gprs_ms_txpwr_max_ccch_present))
    {
        proto_tree_add_bits_item(subtree, hf_gsm_a_rr_gprs_ms_txpwr_max_ccch, tvb, bit_offset, 5, ENC_BIG_ENDIAN);
        bit_offset += 5;
    }
    if (gsm_rr_csn_HL_flag(tvb, subtree, 0, bit_offset++, hf_gsm_a_rr_mbms_procedures))
    { /* MBMS Procedures */
        proto_tree_add_bits_item(subtree, hf_gsm_a_rr_dedicated_mode_mbms_notification_support, tvb, bit_offset, 1, ENC_BIG_ENDIAN);
        bit_offset += 1;
        proto_tree_add_bits_item(subtree, hf_gsm_a_rr_mnci_support, tvb, bit_offset, 1, ENC_BIG_ENDIAN);
        bit_offset += 1;
    }
    if (gsm_rr_csn_HL_flag(tvb, subtree, 0, bit_offset++, hf_gsm_a_rr_additions_in_rel_7))
    { /* Additions in Release 7 */
        if (gsm_rr_csn_flag(tvb, subtree, bit_offset++, hf_gsm_a_rr_amr_config_present))
        {
            proto_tree_add_bits_item(subtree, hf_gsm_a_rr_amr_config, tvb, bit_offset, 4, ENC_BIG_ENDIAN);
            bit_offset += 4;
        }
    }
    if (gsm_rr_csn_HL_flag(tvb, subtree, 0, bit_offset++, hf_gsm_a_rr_rand_bit_stream_ind))
    { /* H < Random bit stream : bit **> */
        proto_tree_add_bytes_format_value(subtree, hf_gsm_a_rr_padding, tvb,
                                          bit_offset >> 3, -1, NULL,
                                          "random bit stream");
    }
    else
    { /* L <spare padding> -- (no randomization) */
        gsm_rr_padding_bits(subtree, tvb, bit_offset, tvb_len, PADDING_BYTE);
    }
    return tvb_len - offset;
}

/* [3] 10.5.2.36 SI 7 Rest Octets
 * [3] 10.5.2.37 SI 8 Rest Octets
 * [3] 10.5.2.37a SI 9 Rest Octets
 */

/*
 * [3] 10.5.2.37b SI 13 Rest Octets
 */
static const value_string gsm_a_rr_si_change_field_vals[] = {
    {  0, "Update of unspecified SI message or SI messages"},
    {  1, "Update of SI1 message"},
    {  2, "Update of SI2, SI2 bis or SI2 ter message or any instance of SI2quater messages"},
    {  3, "Update of SI3, SI4, SI7, SI8, SI16 or SI17 message"},
    {  4, "Update of SI9 message"},
    {  5, "Update of SI18 or SI20 message"},
    {  6, "Update of SI19 message"},
    {  7, "Update of SI15 message"},
    {  8, "Update of SI2n message"},
    {  9, "Update of unknown SI message type"},
    { 10, "Update of unknown SI message type"},
    { 11, "Update of unknown SI message type"},
    { 12, "Update of unknown SI message type"},
    { 13, "Update of unknown SI message type"},
    { 14, "Update of unknown SI message type"},
    { 15, "Update of unknown SI message type"},
    {  0, NULL }
};

static const value_string gsm_a_rr_psi1_repeat_period_vals[] = {
    {  0, "1 multiframe"},
    {  1, "2 multiframes"},
    {  2, "3 multiframes"},
    {  3, "4 multiframes"},
    {  4, "5 multiframes"},
    {  5, "6 multiframes"},
    {  6, "7 multiframes"},
    {  7, "8 multiframes"},
    {  8, "9 multiframes"},
    {  9, "10 multiframes"},
    { 10, "11 multiframes"},
    { 11, "12 multiframes"},
    { 12, "13 multiframes"},
    { 13, "14 multiframes"},
    { 14, "15 multiframes"},
    { 15, "16 multiframes"},
    {  0, NULL }
};

static const value_string gsm_a_rr_pbcch_pb_vals[] = {
    {  0, "0 dB"},
    {  1, "-2 dB"},
    {  2, "-4 dB"},
    {  3, "-6 dB"},
    {  4, "-8 dB"},
    {  5, "-10 dB"},
    {  6, "-12 dB"},
    {  7, "-14 dB"},
    {  8, "-16 dB"},
    {  9, "-18 dB"},
    { 10, "-20 dB"},
    { 11, "-22 dB"},
    { 12, "-24 dB"},
    { 13, "-26 dB"},
    { 14, "-28 dB"},
    { 15, "-30 dB"},
    {  0, NULL }
};

static const true_false_string gsm_a_rr_spgc_ccch_sup_value = {
    "SPLIT_PG_CYCLE is supported on CCCH in this cell",
    "SPLIT_PG_CYCLE is not supported on CCCH in this cell"
};

static const value_string gsm_a_rr_priority_access_thr_vals[] = {
    {  0, "Packet access is not allowed in the cell"},
    {  1, "Packet access is not allowed in the cell"},
    {  2, "Packet access is not allowed in the cell"},
    {  3, "Packet access is allowed for priority level 1"},
    {  4, "Packet access is allowed for priority level 1 to 2"},
    {  5, "Packet access is allowed for priority level 1 to 3"},
    {  6, "Packet access is allowed for priority level 1 to 4"},
    {  7, "Packet access is allowed for priority level 1 to 4"},
    {  0, NULL }
};

static int
de_rr_rest_oct_gprs_mobile_allocation(tvbuff_t *tvb, proto_tree *tree, int bit_offset)
{
    proto_tree *subtree;
    proto_item *item;
    int         curr_bit_offset;
    uint8_t     value;
    uint64_t    ma_length;

    curr_bit_offset = bit_offset;

    subtree = proto_tree_add_subtree(tree, tvb, curr_bit_offset>>3, -1, ett_gsm_rr_rest_octets_elem[DE_RR_REST_OCTETS_GPRS_MOBILE_ALLOC], &item,
                    gsm_rr_rest_octets_elem_strings[DE_RR_REST_OCTETS_GPRS_MOBILE_ALLOC]);
    proto_tree_add_bits_item(subtree, hf_gsm_a_rr_hsn, tvb, curr_bit_offset, 6, ENC_BIG_ENDIAN);
    curr_bit_offset += 6;
    while (gsm_rr_csn_flag(tvb, subtree, curr_bit_offset++, hf_gsm_a_rr_rfl_number_present))
    {
        proto_tree_add_bits_item(subtree, hf_gsm_a_rr_rfl_number, tvb, curr_bit_offset, 4, ENC_BIG_ENDIAN);
        curr_bit_offset += 4;
    }
    if (gsm_rr_csn_flag(tvb, subtree, curr_bit_offset++, hf_gsm_a_rr_gprs_mobile_allocation))
    {
        while (gsm_rr_csn_flag(tvb, subtree, curr_bit_offset++, hf_gsm_a_rr_arfcn_index_list))
        {
            proto_tree_add_bits_item(subtree, hf_gsm_a_rr_arfcn_index, tvb, curr_bit_offset, 6, ENC_BIG_ENDIAN);
            curr_bit_offset += 6;
        }
    }
    else
    {
        proto_tree_add_bits_ret_val(subtree, hf_gsm_a_rr_ma_length, tvb, curr_bit_offset, 6, &ma_length, ENC_BIG_ENDIAN);
        curr_bit_offset += 6;
        value = (int)ma_length + 1;
        item = proto_tree_add_bytes_format(subtree, hf_gsm_a_rr_ma_bitmap, tvb, curr_bit_offset>>3, (value>>3)+1, NULL, "MA Bitmap: ");
        while (value)
        {
            proto_item_append_text(item,"%d",tvb_get_bits8(tvb,curr_bit_offset,1));
            curr_bit_offset += 1;
            value -= 1;
        }
    }
    proto_item_set_len(item,((curr_bit_offset>>3) - (bit_offset>>3) + 1));

    return (curr_bit_offset - bit_offset);
}

static const value_string gsm_a_rr_nmo_vals[] = {
    { 0, "Network Mode of Operation I"},
    { 1, "Network Mode of Operation II"},
    { 2, "Network Mode of Operation III"},
    { 3, "Reserved"},
    { 0, NULL }
};

static const value_string gsm_a_rr_t3168_vals[] = {
    { 0, "500 ms"},
    { 1, "1000 ms"},
    { 2, "1500 ms"},
    { 3, "2000 ms"},
    { 4, "2500 ms"},
    { 5, "3000 ms"},
    { 6, "3500 ms"},
    { 7, "4000 ms"},
    { 0, NULL }
};

static const value_string gsm_a_rr_t3192_vals[] = {
    { 0, "500 ms"},
    { 1, "1000 ms"},
    { 2, "1500 ms"},
    { 3, "0 ms"},
    { 4, "80 ms"},
    { 5, "120 ms"},
    { 6, "160 ms"},
    { 7, "200 ms"},
    { 0, NULL }
};

static const value_string gsm_a_rr_drx_timer_max_vals[] = {
    { 0, "0 s"},
    { 1, "1 s"},
    { 2, "2 s"},
    { 3, "4 s"},
    { 4, "8 s"},
    { 5, "16 s"},
    { 6, "32 s"},
    { 7, "64 s"},
    { 0, NULL }
};

static const true_false_string gsm_a_rr_access_burst_type_value = {
    "11-bit format shall be used",
    "8-bit format shall be used"
};

static const true_false_string gsm_a_rr_control_ack_type_value = {
    "Default format is RLC/MAC control block",
    "Default format is four access bursts"
};

static const value_string gsm_a_rr_pan_max_vals[] = {
    { 0, "maximum value allowed for counter N3102 is 4"},
    { 1, "maximum value allowed for counter N3102 is 8"},
    { 2, "maximum value allowed for counter N3102 is 12"},
    { 3, "maximum value allowed for counter N3102 is 16"},
    { 4, "maximum value allowed for counter N3102 is 20"},
    { 5, "maximum value allowed for counter N3102 is 24"},
    { 6, "maximum value allowed for counter N3102 is 28"},
    { 7, "maximum value allowed for counter N3102 is 32"},
    { 0, NULL }
};

static const true_false_string gsm_a_rr_egprs_packet_channel_request_value = {
    "Use two phase packet access with PACKET CHANNEL REQUEST message for uplink TBF establishment on the PRACH",
    "Use EGPRS PACKET CHANNEL REQUEST message for uplink TBF establishment on the PRACH"
};

static const value_string gsm_a_rr_bep_period_vals[] = {
    {  0, "1"},
    {  1, "2"},
    {  2, "3"},
    {  3, "4"},
    {  4, "5"},
    {  5, "7"},
    {  6, "10"},
    {  7, "12"},
    {  8, "15"},
    {  9, "20"},
    { 10, "25"},
    { 11, "Reserved"},
    { 12, "Reserved"},
    { 13, "Reserved"},
    { 14, "Reserved"},
    { 15, "Reserved"},
    {  0, NULL }
};

static const true_false_string gsm_a_rr_pfc_feature_mode_value = {
    "The network supports packet flow context procedures",
    "The network does not support packet flow context procedures"
};

static const true_false_string gsm_a_rr_dtm_support_value = {
    "The cell supports DTM procedures",
    "The cell does not support DTM procedures"
};

static const true_false_string gsm_a_rr_bss_paging_coordination_value = {
    "The cell supports Circuit-Switched paging coordination",
    "The cell does not support Circuit-Switched paging coordination"
};

static const true_false_string gsm_a_rr_ccn_active_value = {
    "CCN is enabled in the cell",
    "CCN is disabled in the cell"
};

static const true_false_string gsm_a_rr_nw_ext_utbf_value = {
    "The extended uplink TBF mode is supported by the network",
    "The extended uplink TBF mode is not supported by the network"
};

static const true_false_string gsm_a_rr_multiple_tbf_capability_value = {
    "The cell supports multiple TBF procedures",
    "The cell does not support multiple TBF procedures"
};

static const true_false_string gsm_a_rr_ext_utbf_no_data_value = {
    "The mobile station may refrain from sending a PACKET UPLINK DUMMY CONTROL BLOCK message when there is no other RLC/MAC block ready to send in an uplink radio block allocated by the network",
    "The mobile station shall send a PACKET UPLINK DUMMY CONTROL BLOCK message when there is no other RLC/MAC block ready to send in an uplink radio block allocated by the network"
};

static const true_false_string gsm_a_rr_dtm_enhancements_capability_value = {
    "The cell supports enhanced DTM CS establishment and enhanced DTM CS release procedures",
    "The cell does not support enhanced DTM CS establishment and enhanced DTM CS release procedures"
};

static const true_false_string gsm_a_rr_reduced_latency_access_value = {
    "The cell supports \"One Phase Access Request by Reduced Latency MS\"",
    "The cell does not support \"One Phase Access Request by Reduced Latency MS\""
};

static const value_string gsm_a_rr_alpha_vals[] = {
    {  0, "0.0"},
    {  1, "0.1"},
    {  2, "0.2"},
    {  3, "0.3"},
    {  4, "0.4"},
    {  5, "0.5"},
    {  6, "0.6"},
    {  7, "0.7"},
    {  8, "0.8"},
    {  9, "0.9"},
    { 10, "1.0"},
    { 11, "1.0"},
    { 12, "1.0"},
    { 13, "1.0"},
    { 14, "1.0"},
    { 15, "1.0"},
    {  0, NULL }
};

static const value_string gsm_a_rr_t_avg_x_vals[] = {
    {  0, "2^(0/2) / 6 multiframes"},
    {  1, "2^(1/2) / 6 multiframes"},
    {  2, "2^(2/2) / 6 multiframes"},
    {  3, "2^(3/2) / 6 multiframes"},
    {  4, "2^(4/2) / 6 multiframes"},
    {  5, "2^(5/2) / 6 multiframes"},
    {  6, "2^(6/2) / 6 multiframes"},
    {  7, "2^(7/2) / 6 multiframes"},
    {  8, "2^(8/2) / 6 multiframes"},
    {  9, "2^(9/2) / 6 multiframes"},
    { 10, "2^(10/2) / 6 multiframes"},
    { 11, "2^(11/2) / 6 multiframes"},
    { 12, "2^(12/2) / 6 multiframes"},
    { 13, "2^(13/2) / 6 multiframes"},
    { 14, "2^(14/2) / 6 multiframes"},
    { 15, "2^(15/2) / 6 multiframes"},
    { 16, "2^(16/2) / 6 multiframes"},
    { 17, "2^(17/2) / 6 multiframes"},
    { 18, "2^(18/2) / 6 multiframes"},
    { 19, "2^(19/2) / 6 multiframes"},
    { 20, "2^(20/2) / 6 multiframes"},
    { 21, "2^(21/2) / 6 multiframes"},
    { 22, "2^(22/2) / 6 multiframes"},
    { 23, "2^(23/2) / 6 multiframes"},
    { 24, "2^(24/2) / 6 multiframes"},
    { 25, "2^(25/2) / 6 multiframes"},
    { 26, "2^(25/2) / 6 multiframes"},
    { 27, "2^(25/2) / 6 multiframes"},
    { 28, "2^(25/2) / 6 multiframes"},
    { 29, "2^(25/2) / 6 multiframes"},
    { 30, "2^(25/2) / 6 multiframes"},
    { 31, "2^(25/2) / 6 multiframes"},
    {  0, NULL }
};

static const true_false_string gsm_a_rr_pc_meas_chan_value = {
    "Downlink measurements for power control shall be made on PDCH",
    "Downlink measurements for power control shall be made on BCCH"
};

static const value_string gsm_a_rr_n_avg_i_vals[] = {
    {  0, "2^(0/2)"},
    {  1, "2^(1/2)"},
    {  2, "2^(2/2)"},
    {  3, "2^(3/2)"},
    {  4, "2^(4/2)"},
    {  5, "2^(5/2)"},
    {  6, "2^(6/2)"},
    {  7, "2^(7/2)"},
    {  8, "2^(8/2)"},
    {  9, "2^(9/2)"},
    { 10, "2^(10/2)"},
    { 11, "2^(11/2)"},
    { 12, "2^(12/2)"},
    { 13, "2^(13/2)"},
    { 14, "2^(14/2)"},
    { 15, "2^(15/2)"},
    {  0, NULL }
};

static const true_false_string gsm_a_rr_sgsnr_value = {
    "SGSN is Release '99 onwards",
    "SGSN is Release '98 or older"
};

static const true_false_string gsm_a_rr_si_status_ind_value = {
    "The network supports the PACKET SI STATUS message",
    "The network does not support the PACKET SI STATUS message"
};

static const value_string gsm_a_rr_lb_ms_txpwr_max_cch_vals[] = {
    {  0, "43 dBm"},
    {  1, "41 dBm"},
    {  2, "39 dBm"},
    {  3, "37 dBm"},
    {  4, "35 dBm"},
    {  5, "33 dBm"},
    {  6, "31 dBm"},
    {  7, "29 dBm"},
    {  8, "27 dBm"},
    {  9, "25 dBm"},
    { 10, "23 dBm"},
    { 11, "21 dBm"},
    { 12, "19 dBm"},
    { 13, "17 dBm"},
    { 14, "15 dBm"},
    { 15, "13 dBm"},
    { 16, "11 dBm"},
    { 17, "9 dBm"},
    { 18, "7 dBm"},
    { 19, "5 dBm"},
    { 20, "5 dBm"},
    { 21, "5 dBm"},
    { 22, "5 dBm"},
    { 23, "5 dBm"},
    { 24, "5 dBm"},
    { 25, "5 dBm"},
    { 26, "5 dBm"},
    { 27, "5 dBm"},
    { 28, "5 dBm"},
    { 29, "5 dBm"},
    { 30, "5 dBm"},
    { 31, "5 dBm"},
    {  0, NULL }
};

static const value_string gsm_a_rr_si2n_support_vals[] = {
    { 0, "SI2n is not supported"},
    { 1, "SI2n is supported on PACCH"},
    { 2, "SI2n is supported on PACCH and broadcast on BCCH"},
    { 3, "SI2n is supported on PACCH and broadcast on BCCH Ext"},
    { 0, NULL }
};

static const value_string gsm_a_rr_peo_dsc_vals[] = {
    { 0, "DSC = 4" },
    { 1, "DSC = 6" },
    { 2, "DSC = 8" },
    { 3, "DSC = 10" },
    { 0, NULL }
};

static const value_string gsm_a_rr_c1_delta_min_vals[] = {
    { 0, "3 dB" },
    { 1, "6 dB" },
    { 2, "9 dB" },
    { 3, "12 dB" },
    { 0, NULL }
};

static const value_string gsm_a_rr_c1_delta_max_vals[] = {
    { 0, "3 dB" },
    { 1, "6 dB" },
    { 2, "9 dB" },
    { 3, "12 dB" },
    { 4, "15 dB" },
    { 5, "18 dB" },
    { 6, "21 dB" },
    { 7, "24 dB" },
    { 0, NULL }
};

static const true_false_string gsm_si_change_alt_value = {
    "A mobile station supporting network sharing should not attempt to re-read the SI2quater message",
    "A mobile station supporting network sharing shall fully take into account a change of system information \nsignalled by the SI_CHANGE_FIELD value '2', SI2quater included"
    };

static uint16_t
de_rr_si13_rest_oct(tvbuff_t *tvb, proto_tree *subtree, packet_info *pinfo _U_, uint32_t offset, unsigned len _U_, char *add_string _U_, int string_len _U_)
{
    proto_tree *subtree2;
    proto_item *item2;
    unsigned    bit_offset, bit_offset_sav;
    uint8_t     tvb_len = tvb_reported_length(tvb);
    uint16_t    bit_len = tvb_len << 3;
    bit_offset          = offset << 3;

    if (gsm_rr_csn_HL_flag(tvb, subtree, 0, bit_offset++, hf_gsm_a_rr_si13_contents))
    {
        proto_tree_add_bits_item(subtree, hf_gsm_a_rr_bcch_change_mark, tvb, bit_offset, 3, ENC_BIG_ENDIAN);
        bit_offset += 3;
        proto_tree_add_bits_item(subtree, hf_gsm_a_rr_si_change_field, tvb, bit_offset, 4, ENC_BIG_ENDIAN);
        bit_offset += 4;
        if (gsm_rr_csn_flag(tvb, subtree, bit_offset++, hf_gsm_a_rr_si13_change_mark_present))
        {
            proto_tree_add_bits_item(subtree, hf_gsm_a_rr_si13_change_mark, tvb, bit_offset, 2, ENC_BIG_ENDIAN);
            bit_offset += 2;
            bit_offset += de_rr_rest_oct_gprs_mobile_allocation(tvb, subtree, bit_offset);
        }
        if (gsm_rr_csn_flag(tvb, subtree, bit_offset++, hf_gsm_a_rr_pbcch))
        { /* PBCCH present in the cell */
            proto_tree_add_bits_item(subtree, hf_gsm_a_rr_psi1_repeat_period, tvb, bit_offset, 4, ENC_BIG_ENDIAN);
            bit_offset += 4;
            bit_offset_sav = bit_offset;
            subtree2 = proto_tree_add_subtree(subtree, tvb, bit_offset>>3, -1, ett_gsm_rr_rest_octets_elem[DE_RR_REST_OCTETS_PBCCH_DESC], &item2,
                                            gsm_rr_rest_octets_elem_strings[DE_RR_REST_OCTETS_PBCCH_DESC]);
            proto_tree_add_bits_item(subtree2, hf_gsm_a_rr_pbcch_pb, tvb, bit_offset, 4, ENC_BIG_ENDIAN);
            bit_offset += 4;
            proto_tree_add_bits_item(subtree2, hf_gsm_a_rr_pbcch_tsc, tvb, bit_offset, 3, ENC_BIG_ENDIAN);
            bit_offset += 3;
            proto_tree_add_bits_item(subtree2, hf_gsm_a_rr_pbcch_tn, tvb, bit_offset, 3, ENC_BIG_ENDIAN);
            bit_offset += 3;
            if (gsm_rr_csn_flag(tvb, subtree, bit_offset++, hf_gsm_a_rr_maio_present))
            {
                proto_tree_add_bits_item(subtree2, hf_gsm_a_rr_maio, tvb, bit_offset, 6, ENC_BIG_ENDIAN);
                bit_offset += 6;
            }
            else
            {
                if (gsm_rr_csn_flag(tvb, subtree, bit_offset++, hf_gsm_a_rr_arfcn_present))
                {
                    proto_tree_add_bits_item(subtree2, hf_gsm_a_rr_arfcn, tvb, bit_offset, 10, ENC_BIG_ENDIAN);
                    bit_offset += 10;
                }
                else
                    proto_tree_add_item(subtree2, hf_gsm_a_rr_pbcch_use_bcch, tvb, bit_offset>>3, 1, ENC_NA);
            }
            proto_item_set_len(item2, (bit_offset>>3) - (bit_offset_sav>>3)+1);
        }
        else
        { /* PBCCH not present in the cell */
            proto_tree_add_bits_item(subtree, hf_gsm_a_rr_rac, tvb, bit_offset, 8, ENC_BIG_ENDIAN);
            bit_offset += 8;
            proto_tree_add_bits_item(subtree, hf_gsm_a_rr_spgc_ccch_sup, tvb, bit_offset, 1, ENC_BIG_ENDIAN);
            bit_offset += 1;
            proto_tree_add_bits_item(subtree, hf_gsm_a_rr_priority_access_thr, tvb, bit_offset, 3, ENC_BIG_ENDIAN);
            bit_offset += 3;
            proto_tree_add_bits_item(subtree, hf_gsm_a_rr_network_control_order, tvb, bit_offset, 2, ENC_BIG_ENDIAN);
            bit_offset += 2;
            bit_offset += de_rr_rest_oct_gprs_cell_options(tvb, subtree, bit_offset);
            bit_offset += de_rr_rest_oct_gprs_power_control_parameters(tvb, subtree, bit_offset);
        }

        /* Null breakpoint */
        if (bit_offset < bit_len)
        {
           if (gsm_rr_csn_HL_flag(tvb, subtree, 0, bit_offset++, hf_gsm_a_rr_additions_in_r99))
           { /* Additions in release 99 */
               proto_tree_add_bits_item(subtree, hf_gsm_a_rr_sgsnr, tvb, bit_offset, 1, ENC_BIG_ENDIAN);
               bit_offset += 1;

               /* Null breakpoint */
               if (bit_offset < bit_len)
               {
                  if (gsm_rr_csn_HL_flag(tvb, subtree, 0, bit_offset++, hf_gsm_a_rr_additions_in_rel_4))
                  { /* Additions in release Rel-4 */
                      proto_tree_add_bits_item(subtree, hf_gsm_a_rr_si_status_ind, tvb, bit_offset, 1, ENC_BIG_ENDIAN);
                      bit_offset += 1;

                      /* Null breakpoint */
                      if (bit_offset < bit_len)
                      {
                         if (gsm_rr_csn_HL_flag(tvb, subtree, 0, bit_offset++, hf_gsm_a_rr_additions_in_rel_6))
                         { /* Additions in release Rel-6 */
                            if (gsm_rr_csn_flag(tvb, subtree, bit_offset++, hf_gsm_a_rr_lb_ms_txpwr_max_cch_present))
                            {
                                proto_tree_add_bits_item(subtree, hf_gsm_a_rr_lb_ms_txpwr_max_cch, tvb, bit_offset, 5, ENC_BIG_ENDIAN);
                                bit_offset += 5;
                            }
                            proto_tree_add_bits_item(subtree, hf_gsm_a_rr_si2n_support, tvb, bit_offset, 2, ENC_BIG_ENDIAN);
                            bit_offset += 2;

                            (void)gsm_rr_csn_HL_flag(tvb, subtree, 0, bit_offset++, hf_gsm_a_rr_si_change_alt);

                            if (gsm_rr_csn_flag(tvb, subtree, bit_offset++, hf_gsm_a_rr_peo_dsc_and_rcc_present))
                            {
                                proto_tree_add_bits_item(subtree, hf_gsm_a_rr_peo_dsc, tvb, bit_offset, 2, ENC_BIG_ENDIAN);
                                bit_offset += 2;
                                proto_tree_add_bits_item(subtree, hf_gsm_a_rr_rcc, tvb, bit_offset, 3, ENC_BIG_ENDIAN);
                                bit_offset += 3;
                            }

                            if (gsm_rr_csn_flag(tvb, subtree, bit_offset++, hf_gsm_a_rr_c1_delta_present))
                            {
                                proto_tree_add_bits_item(subtree, hf_gsm_a_rr_c1_delta_min, tvb, bit_offset, 2, ENC_BIG_ENDIAN);
                                bit_offset += 2;
                                proto_tree_add_bits_item(subtree, hf_gsm_a_rr_c1_delta_max, tvb, bit_offset, 3, ENC_BIG_ENDIAN);
                                bit_offset += 3;
                            }
                         }
                      }
                  }
               }
           }
        }
    }
    gsm_rr_padding_bits(subtree, tvb, bit_offset, tvb_len, PADDING_BYTE);
    return tvb_len - offset;
}

/* [3] 10.5.2.37c (void)
 * [3] 10.5.2.37d (void)
 * [3] 10.5.2.37e SI 16 Rest Octets
 * [3] 10.5.2.37f SI 17 Rest Octets
 * [3] 10.5.2.37g SI 19 Rest Octets
 * [3] 10.5.2.37h SI 18 Rest Octets
 * [3] 10.5.2.37i SI 20 Rest Octets
 */

 /*
  * [3] 10.5.2.37m SI 21 Rest Octets
  */
static uint16_t
de_rr_si21_rest_oct(tvbuff_t *tvb, proto_tree *subtree, packet_info *pinfo _U_, uint32_t offset, unsigned len _U_, char *add_string _U_, int string_len _U_)
{
    proto_tree  *subtree2;
    proto_item *item2;
    uint32_t curr_offset;
    int      bit_offset, bit_offset_sav;
    uint8_t  tvb_len = tvb_reported_length(tvb);

    curr_offset = offset;
    bit_offset = curr_offset << 3;

    proto_tree_add_bits_item(subtree, hf_gsm_a_rr_si21_change_mark, tvb, bit_offset, 2, ENC_BIG_ENDIAN);
    bit_offset += 2;
    proto_tree_add_bits_item(subtree, hf_gsm_a_rr_si21_index, tvb, bit_offset, 3, ENC_BIG_ENDIAN);
    bit_offset += 3;
    proto_tree_add_bits_item(subtree, hf_gsm_a_rr_si21_count, tvb, bit_offset, 3, ENC_BIG_ENDIAN);
    bit_offset += 3;
    if (gsm_rr_csn_flag(tvb, subtree, bit_offset++, hf_gsm_a_rr_eab_parameters))
    {
        bit_offset_sav = bit_offset;
        subtree2 = proto_tree_add_subtree(subtree, tvb, bit_offset >> 3, -1, ett_gsm_rr_rest_octets_elem[DE_RR_REST_OCTETS_EAB_PARAM_DESC], &item2,
            gsm_rr_rest_octets_elem_strings[DE_RR_REST_OCTETS_EAB_PARAM_DESC]);

        /* EAB Authorization mask */
        proto_tree_add_bits_item(subtree2, hf_gsm_a_rr_eab_auth_mask, tvb, bit_offset, 10, ENC_BIG_ENDIAN);
        bit_offset += 10;
        /* EAB Subcategory */
        proto_tree_add_bits_item(subtree2, hf_gsm_a_eab_subcategory, tvb, bit_offset, 2, ENC_BIG_ENDIAN);
        bit_offset += 2;

        proto_item_set_len(item2, (bit_offset >> 3) - (bit_offset_sav >> 3) + 1);
    }
    gsm_rr_padding_bits(subtree, tvb, bit_offset, tvb_len, PADDING_BYTE);
    return tvb_len - offset;
}

/*
 * [3] 10.5.2.38 Starting Time
 */
static uint16_t
de_rr_starting_time(tvbuff_t *tvb, proto_tree *tree, packet_info *pinfo _U_, uint32_t offset, unsigned len _U_, char *add_string _U_, int string_len _U_)
{
    proto_item *item;
    uint32_t    curr_offset;
    uint16_t    rfn;

    curr_offset = offset;

    rfn = parse_reduced_frame_number(tvb, curr_offset);
    proto_tree_add_item(tree, hf_gsm_a_rr_T1prim, tvb, curr_offset, 1, ENC_BIG_ENDIAN);
    proto_tree_add_item(tree, hf_gsm_a_rr_T3, tvb, curr_offset, 2, ENC_BIG_ENDIAN);
    curr_offset++;
    proto_tree_add_item(tree, hf_gsm_a_rr_T2, tvb, curr_offset, 1, ENC_BIG_ENDIAN);
    curr_offset++;
    item = proto_tree_add_uint(tree, hf_gsm_a_rr_rfn, tvb, curr_offset-2, 2, rfn);
    proto_item_set_generated(item);
    return curr_offset - offset;
}
/*
 * [3] 10.5.2.39 Synchronization Indication
 */
/*
 * ROT: Report Observed Time Difference (Octet1 bit 3) */

static const true_false_string sm_a_rr_sync_ind_rot_value  = {
    "Mobile Time Difference IE shall be included in the HANDOVER COMPLETE message",
    "Mobile Time Difference IE shall not be included in the HANDOVER COMPLETE message"
};

/* SI: Synchronization indication (octet 1)Bit2 1 */

static const value_string gsm_a_rr_sync_ind_si_vals[] = {
    { 0, "Non-synchronized"},
    { 1, "Synchronized"},
    { 2, "Pre-synchronised"},
    { 3, "Pseudo-synchronised"},
    { 0, NULL }
};
/* NCI: Normal cell indication (octet 1, bit 4) */

static const true_false_string gsm_a_rr_sync_ind_nci_value = {
    "Out of range timing advance shall trigger a handover failure procedure",
    "Out of range timing advance is ignored"
};
static uint16_t
de_rr_sync_ind(tvbuff_t *tvb, proto_tree *tree, packet_info *pinfo _U_, uint32_t offset, unsigned len _U_, char *add_string _U_, int string_len _U_)
{
    uint32_t curr_offset;

    curr_offset = offset;

    /*NCI */
    proto_tree_add_item(tree, hf_gsm_a_rr_sync_ind_nci, tvb, curr_offset, 1, ENC_BIG_ENDIAN);
    /*ROT */
    proto_tree_add_item(tree, hf_gsm_a_rr_sync_ind_rot, tvb, curr_offset, 1, ENC_BIG_ENDIAN);
    /*SI*/
    proto_tree_add_item(tree, hf_gsm_a_rr_sync_ind_si, tvb, curr_offset, 1, ENC_BIG_ENDIAN);

    curr_offset = curr_offset + 1;

    return curr_offset - offset;
}

/*
 * [3] 10.5.2.40 Timing Advance
 */
static uint16_t
de_rr_timing_adv(tvbuff_t *tvb, proto_tree *tree, packet_info *pinfo _U_, uint32_t offset, unsigned len _U_, char *add_string _U_, int string_len _U_)
{
    uint32_t curr_offset;

    curr_offset = offset;

    proto_tree_add_item(tree, hf_gsm_a_rr_timing_adv, tvb, curr_offset, 1, ENC_BIG_ENDIAN);
    curr_offset = curr_offset + 1;

    return curr_offset - offset;
}

/*
 * [3] 10.5.2.41 Time Difference
 */
static uint16_t
de_rr_time_diff(tvbuff_t *tvb, proto_tree *tree, packet_info *pinfo _U_, uint32_t offset, unsigned len _U_, char *add_string _U_, int string_len _U_)
{
    uint32_t curr_offset;

    curr_offset = offset;

    proto_tree_add_item(tree, hf_gsm_a_rr_time_diff, tvb, curr_offset, 1, ENC_BIG_ENDIAN);
    curr_offset = curr_offset + 1;

    return curr_offset - offset;
}
/*
 * [3] 10.5.2.41a TLLI
 * The TLLI is encoded as a binary number with a length of 4 octets. TLLI is defined in 3GPP TS 23.003
 */
uint16_t
de_rr_tlli(tvbuff_t *tvb, proto_tree *tree, packet_info *pinfo _U_, uint32_t offset, unsigned len _U_, char *add_string _U_, int string_len _U_)
{
    uint32_t curr_offset, tlli;

    curr_offset = offset;

    proto_tree_add_item_ret_uint(tree, hf_gsm_a_rr_tlli, tvb, curr_offset, 4, ENC_BIG_ENDIAN, &tlli);

    if(gsm_a_rr_nri_length > 0) {
        /* NRI is in second byte of TLLI */
        proto_tree_add_bits_item(tree, hf_gsm_a_rr_nri, tvb, (curr_offset+1)*8, gsm_a_rr_nri_length, ENC_BIG_ENDIAN);
    }

    curr_offset = curr_offset + 4;
    if(add_string)
        snprintf(add_string, string_len, " - 0x%x", tlli);

    return curr_offset - offset;
}

/*
 * [3] 10.5.2.42 TMSI/P-TMSI
 */
static uint16_t
de_rr_tmsi_ptmsi(tvbuff_t *tvb, proto_tree *tree, packet_info *pinfo _U_, uint32_t offset, unsigned len _U_, char *add_string _U_, int string_len _U_)
{
    proto_tree *subtree;
    uint32_t    curr_offset;

    curr_offset = offset;

    subtree = proto_tree_add_subtree(tree, tvb, curr_offset, 3, ett_gsm_rr_elem[DE_RR_TMSI_PTMSI], NULL,
                               val_to_str_ext_const(DE_RR_TMSI_PTMSI, &gsm_rr_elem_strings_ext, ""));

    proto_tree_add_item(subtree, hf_gsm_a_tmsi, tvb, curr_offset, 4, ENC_BIG_ENDIAN);
    curr_offset = curr_offset + 4;

    return curr_offset - offset;
}

/*
 * [3] 10.5.2.42a VGCS target mode Indication
 */
/*
Target mode (octet 3)
Bit  8 7
     0 0    dedicated mode
     0 1    group transmit mode
     Other values are reserved for future use.
*/
static const value_string gsm_a_rr_target_mode_vals[] _U_ = {
    { 0, "Dedicated mode"},
    { 1, "Group transmit mode"},
    { 0, NULL }
};
static uint16_t
de_rr_vgcs_tar_mode_ind(tvbuff_t *tvb, proto_tree *tree, packet_info *pinfo _U_, uint32_t offset, unsigned len _U_, char *add_string _U_, int string_len _U_)
{
    uint32_t curr_offset;

    curr_offset = offset;

    proto_tree_add_item(tree, hf_gsm_a_rr_target_mode, tvb, curr_offset, 1, ENC_BIG_ENDIAN);
    proto_tree_add_item(tree, hf_gsm_a_rr_group_cipher_key_number, tvb, curr_offset, 1, ENC_BIG_ENDIAN);
    curr_offset = curr_offset + 1;

    return curr_offset - offset;
}

/*
 * [3] 10.5.2.42b      VGCS Ciphering Parameters
 */
static uint16_t
de_rr_vgcs_cip_par(tvbuff_t *tvb, proto_tree *tree, packet_info *pinfo, uint32_t offset, unsigned len _U_, char *add_string _U_, int string_len _U_)
{
    uint32_t curr_offset;

    curr_offset = offset;

    proto_tree_add_expert_format(tree, pinfo, &ei_gsm_a_rr_data_not_dissected, tvb, curr_offset, len, "Data (Not decoded)");

    curr_offset = curr_offset + 2;

    return curr_offset - offset;
}
/*
 * [3] 10.5.2.43 Wait Indication
 */
static uint16_t
de_rr_wait_ind(tvbuff_t *tvb, proto_tree *tree, packet_info *pinfo _U_, uint32_t offset, unsigned len _U_, char *add_string _U_, int string_len _U_)
{
    uint32_t curr_offset;

    curr_offset = offset;

    proto_tree_add_item(tree, hf_gsm_a_rr_wait_indication, tvb, curr_offset, 1, ENC_BIG_ENDIAN);

    curr_offset = curr_offset + 1;

    return curr_offset - offset;
}

/*
 * [3] 10.5.2.44 SI10 rest octets $(ASCI)$
 */

/*
 * [3] 10.5.2.45 Extended Measurement Results
 */
static uint16_t
de_rr_ext_meas_result(tvbuff_t *tvb, proto_tree *tree, packet_info *pinfo _U_, uint32_t offset, unsigned len, char *add_string _U_, int string_len _U_)
{
    uint32_t curr_offset;
    int     bit_offset, i;
    uint8_t value;

    curr_offset = offset;
    bit_offset  = curr_offset << 3;

    proto_tree_add_bits_item(tree, hf_gsm_a_rr_seq_code, tvb,bit_offset, 1, ENC_BIG_ENDIAN);
    bit_offset += 1;
    proto_tree_add_bits_item(tree, hf_gsm_a_rr_dtx_used, tvb, bit_offset, 1, ENC_BIG_ENDIAN);
    bit_offset += 1;
    for (i=0; i<21; i++)
    {
        value = tvb_get_bits8(tvb,bit_offset,6);
        proto_tree_add_uint_format(tree, hf_gsm_a_rr_rxlev_carrier, tvb, bit_offset>>3, 1,
                value, "RXLEV carrier %d: %s (%d)", i, val_to_str_ext_const(value, &gsm_a_rr_rxlev_vals_ext, "Unknown"), value);
        bit_offset += 6;
    }

    curr_offset = offset + len;

    return curr_offset - offset;
}

/*
 * [3] 10.5.2.46 Extended Measurement Frequency List
 */
static uint16_t
de_rr_ext_meas_freq_list(tvbuff_t *tvb, proto_tree *tree, packet_info *pinfo _U_, uint32_t offset, unsigned len _U_, char *add_string _U_, int string_len _U_)
{
   uint32_t curr_offset;

   curr_offset = offset;

   proto_tree_add_bits_item(tree, hf_gsm_a_rr_seq_code, tvb,(curr_offset<<3)+3, 1, ENC_BIG_ENDIAN);

   return dissect_arfcn_list(tvb, tree, pinfo, offset, 16, add_string, string_len);
}

/*
 * [3] 10.5.2.47 Suspension Cause
 */
/*Suspension cause value (octet 2)*/
static const value_string gsm_a_rr_suspension_cause_vals[] = {
    { 0, "Emergency call, mobile originating call or call re-establishment"},
    { 1, "Location Area Update"},
    { 2, "MO Short message service"},
    { 3, "Other procedure which can be completed with an SDCCH"},
    { 4, "MO Voice broadcast or group call"},
    { 5, "Mobile terminating CS connection"},
    { 6, "DTM not supported in the cell"},
    { 0, NULL }
};
uint16_t
de_rr_sus_cau(tvbuff_t *tvb, proto_tree *tree, packet_info *pinfo _U_, uint32_t offset, unsigned len _U_, char *add_string _U_, int string_len _U_)
{
    uint32_t curr_offset;

    curr_offset = offset;

    proto_tree_add_item(tree, hf_gsm_a_rr_suspension_cause, tvb, curr_offset, 1, ENC_BIG_ENDIAN);

    curr_offset = curr_offset + 1;

    return curr_offset - offset;
}
/*
 * [3] 10.5.2.48 APDU ID
 */
static const value_string gsm_a_rr_apdu_id_vals[] = {
    { 0, "RRLP (GSM 04.31) LCS" },
    { 1, "ETWS (3GPP TS 23.041)" },
    { 0, NULL },
};
static uint16_t
de_rr_apdu_id(tvbuff_t *tvb, proto_tree *tree, packet_info *pinfo _U_, uint32_t offset, unsigned len _U_, char *add_string _U_, int string_len _U_)
{
    uint32_t *ppi = wmem_new(pinfo->pool, uint32_t);
    proto_tree_add_item_ret_uint(tree, hf_gsm_a_rr_apdu_id, tvb, offset, 1, ENC_BIG_ENDIAN, ppi);
    p_add_proto_data(pinfo->pool, pinfo, proto_a_rr, pinfo->curr_layer_num, ppi);

    return 0;
}

/*
 * [3] 10.5.2.49 APDU Flags
 * Please note that value 1 means "not".
 */
static const true_false_string gsm_a_rr_apdu_flags_cr_value = {
    "Not Command or Final Response",
    "Command or Final Response",
};
static const true_false_string gsm_a_rr_apdu_flags_fs_value = {
    "Not first or only segment",
    "First or only segment",
};
static const true_false_string gsm_a_rr_apdu_flags_ls_value = {
    "Not last or only segment",
    "Last or only segment",
};

static uint16_t
de_rr_apdu_flags(tvbuff_t *tvb, proto_tree *tree, packet_info *pinfo _U_, uint32_t offset, unsigned len _U_, char *add_string _U_, int string_len _U_)
{
    proto_tree_add_item(tree, hf_gsm_a_rr_apdu_flags_cr, tvb, offset, 1, ENC_BIG_ENDIAN);
    proto_tree_add_item(tree, hf_gsm_a_rr_apdu_flags_fs, tvb, offset, 1, ENC_BIG_ENDIAN);
    proto_tree_add_item(tree, hf_gsm_a_rr_apdu_flags_ls, tvb, offset, 1, ENC_BIG_ENDIAN);

    return 1;
}

/*
 * [3] 10.5.2.50 APDU Data
 */
static uint16_t
de_rr_apdu_data(tvbuff_t *tvb, proto_tree *tree, packet_info *pinfo _U_, uint32_t offset, unsigned len, char *add_string _U_, int string_len _U_)
{
    proto_item *apdu_pi;
    proto_tree *apdu_tree;
    tvbuff_t *sub_tvb;
    uint32_t *ppi;

    apdu_pi = proto_tree_add_item(tree, hf_gsm_a_rr_apdu_data, tvb, offset, len, ENC_NA);
    apdu_tree = proto_item_add_subtree(apdu_pi, ett_apdu);
    sub_tvb = tvb_new_subset_length(tvb, offset, len);

    ppi = (uint32_t *) p_get_proto_data(pinfo->pool, pinfo, proto_a_rr, pinfo->curr_layer_num);
    if (ppi && *ppi == 0 && rrlp_dissector)
        call_dissector(rrlp_dissector, sub_tvb,pinfo, apdu_tree);

    return len;
}

/*
 * [3] 10.5.2.51 Handover To UTRAN Command
 */
static uint16_t
de_rr_ho_to_utran_cmd(tvbuff_t *tvb, proto_tree *tree, packet_info *pinfo, uint32_t offset, unsigned len, char *add_string _U_, int string_len _U_)
{
    uint32_t curr_offset;
    tvbuff_t *rrc_irat_ho_to_utran_cmd_tvb;

    curr_offset = offset;
    if (len)
    {
        rrc_irat_ho_to_utran_cmd_tvb = tvb_new_subset_length(tvb, curr_offset, len);
        if (rrc_irat_ho_to_utran_cmd_handle)
            call_dissector(rrc_irat_ho_to_utran_cmd_handle, rrc_irat_ho_to_utran_cmd_tvb, pinfo, tree);
    }

    curr_offset += len;
    return curr_offset - offset;
}


/*
 * [3] 10.5.2.52 Handover To cdma2000 Command
 * [3] 10.5.2.53 (void)
 * [3] 10.5.2.54 (void)
 * [3] 10.5.2.55 (void)
 * [3] 10.5.2.56 3G Target Cell
 */
/*
 * 10.5.2.57 Service Support
 */
static const true_false_string gsm_a_rr_MBMS_multicast_value  = {
    "mobile station requires notification of multicast MBMS services",
    "mobile station does not require notification of multicast MBMS services"
};
static const true_false_string gsm_a_rr_MBMS_broadcast_value  = {
    "mobile station requires notification of broadcast MBMS services",
    "mobile station does not require notification of broadcast MBMS services"
};
static uint16_t
de_rr_serv_sup(tvbuff_t *tvb, proto_tree *tree, packet_info *pinfo _U_, uint32_t offset, unsigned len _U_, char *add_string _U_, int string_len _U_)
{
    uint32_t curr_offset;

    curr_offset = offset;
    /* bit 1
     * 0 mobile station does not require notification of broadcast MBMS services
     * 1 mobile station requires notification of broadcast MBMS services
     * bit 2
     * 0 mobile station does not require notification of multicast MBMS services
     * 1 mobile station requires notification of multicast MBMS services
     */
    /* MBMS Multicast */
    proto_tree_add_item(tree, hf_gsm_a_rr_MBMS_multicast, tvb, curr_offset, 1, ENC_BIG_ENDIAN);

    /* MBMS Broadcast */
    proto_tree_add_item(tree, hf_gsm_a_rr_MBMS_broadcast, tvb, curr_offset, 1, ENC_BIG_ENDIAN);
    curr_offset++;

    return curr_offset - offset;
}

/*
 * [3] 10.5.2.59       Dedicated Service Information
 */
/*
Last Segment (octet 2)
bit 1
  0  mobile station shall not perform Service Information Sending procedure on new cell.
  1  mobile station shall perform Service Information Sending procedure on new cell.
*/
static const true_false_string gsm_a_rr_last_segment_value  = {
    "Mobile station shall perform Service Information Sending procedure on new cell.",
    "mobile station shall not perform Service Information Sending procedure on new cell."
};
static uint16_t
de_rr_ded_serv_inf(tvbuff_t *tvb, proto_tree *tree, packet_info *pinfo _U_, uint32_t offset, unsigned len _U_, char *add_string _U_, int string_len _U_)
{
    uint32_t curr_offset;

    curr_offset = offset;

    proto_tree_add_item(tree, hf_gsm_a_rr_last_segment, tvb, curr_offset, 1, ENC_BIG_ENDIAN);

    curr_offset = curr_offset + 3;

    return curr_offset - offset;
}

/*
 * [3] 10.5.2.69        Carrier Indication
 */
static const true_false_string gsm_a_rr_carrier_ind_value  = {
    "Carrier 2",
    "Carrier 1"
};

static uint16_t
de_rr_carrier_ind(tvbuff_t *tvb, proto_tree *tree, packet_info *pinfo _U_, uint32_t offset, unsigned len _U_, char *add_string _U_, int string_len _U_)
{
    proto_tree *subtree;
    uint32_t    curr_offset;

    curr_offset = offset;

    subtree = proto_tree_add_subtree(tree, tvb, curr_offset, 3, ett_gsm_rr_elem[DE_RR_CARRIER_IND], NULL,
                               val_to_str_ext_const(DE_RR_CARRIER_IND, &gsm_rr_elem_strings_ext, ""));

    proto_tree_add_item(subtree, hf_gsm_a_rr_carrier_ind, tvb, curr_offset, 1, ENC_BIG_ENDIAN);

    curr_offset += 1;

    return curr_offset - offset;
}

/*
 * [3] 10.5.2.76 Feature Indicator
 */
static const true_false_string gsm_a_rr_feat_ind_cs_ir = {
    "An implicit reject is indicated for the CS domain",
    "An implicit reject is not indicated for the CS domain"
};

static const true_false_string gsm_a_rr_feat_ind_ps_ir = {
    "An implicit reject is indicated for the PS domain",
    "An implicit reject is not indicated for the PS domain"
};

static uint16_t
de_rr_feature_indicator(tvbuff_t *tvb, proto_tree *tree, packet_info *pinfo _U_, uint32_t offset, unsigned len _U_, char *add_string _U_, int string_len _U_)
{
    uint32_t curr_offset;

    curr_offset = offset;

    proto_tree_add_bits_item(tree, hf_gsm_a_rr_peo_bcch_change_mark, tvb, curr_offset << 3, 2, ENC_BIG_ENDIAN);
    proto_tree_add_bits_item(tree, hf_gsm_a_rr_feat_ind_cs_ir, tvb, (curr_offset<<3)+2, 1, ENC_BIG_ENDIAN);
    proto_tree_add_bits_item(tree, hf_gsm_a_rr_feat_ind_ps_ir, tvb, (curr_offset<<3)+3, 1, ENC_BIG_ENDIAN);

    curr_offset += 1;

    return curr_offset - offset;
}

/*
 * [3] 10.5.2.8 Extended TSC Set
 */
static const value_string gsm_a_rr_cs_tsc_set_vals[] = {
    { 0, "TSC set 1" },
    { 1, "TSC set 2" },
    { 2, "TSC set 3" },
    { 3, "TSC set 4" },
    { 0, NULL }
};

static const value_string gsm_a_rr_ps_tsc_set_vals[] = {
    { 0, "TSC set 1" },
    { 1, "TSC set 2 for 8PSK, 16QAM and 32QAM or TSC set 3 for GMSK" },
    { 0, NULL }
};

static uint16_t
de_rr_extended_tsc_set(tvbuff_t *tvb, proto_tree *tree,
                       packet_info *pinfo _U_, uint32_t offset, unsigned len _U_,
                       char *add_string _U_, int string_len _U_)
{
    proto_tree_add_item(tree, hf_gsm_a_rr_cs_tsc_set, tvb, offset, 1, ENC_NA);
    proto_tree_add_item(tree, hf_gsm_a_rr_ps_sd_tsc_ass, tvb, offset, 1, ENC_NA);
    proto_tree_add_item(tree, hf_gsm_a_rr_ps_pd_tsc_set, tvb, offset, 1, ENC_NA);
    proto_tree_add_item(tree, hf_gsm_a_rr_ps_sd_tsc_set, tvb, offset, 1, ENC_NA);
    proto_tree_add_item(tree, hf_gsm_a_rr_ps_sd_tsc_val, tvb, offset, 1, ENC_NA);
    return 1;
}

 /*
  * 10.5.2.83 EC Request reference
  */
static uint16_t
de_rr_ec_request_reference(tvbuff_t *tvb, proto_tree *tree, packet_info *pinfo _U_, uint32_t bit_offset, char *add_string)
{
    proto_tree *subtree;
    uint32_t    curr_bit_offset = bit_offset;

    subtree = proto_tree_add_subtree_format(tree, tvb, curr_bit_offset>>3, 2, ett_gsm_rr_elem[DE_RR_EC_REQUEST_REFERENCE], NULL,
                             "%s%s", val_to_str_ext_const(DE_RR_EC_REQUEST_REFERENCE, &gsm_rr_elem_strings_ext, ""),
                             (add_string == NULL) || (add_string[0] == '\0') ? "" : add_string);

    proto_tree_add_bits_item(subtree, hf_gsm_a_rr_ec_last_tdma_frame, tvb, curr_bit_offset, 10, ENC_BIG_ENDIAN);
    curr_bit_offset += 10;

    proto_tree_add_bits_item(subtree, hf_gsm_a_rr_ec_echoed_random_bits, tvb, curr_bit_offset, 3, ENC_BIG_ENDIAN);
    curr_bit_offset += 3;

    return curr_bit_offset-bit_offset; /*Bits!*/
}

/*
 * [3] 10.5.2.84        EC Packet Channel Description type 1
 */
static void
gsm_a_rr_ec_ma_number_fmt(char *s, uint32_t v)
{
    snprintf(s, ITEM_LABEL_LENGTH, "EC-EGPRS Mobile Allocation set %u (%u)", v+1, v);
}

static uint16_t
de_rr_ec_pkt_ch_dsc1(tvbuff_t *tvb, proto_tree *tree, packet_info *pinfo _U_, uint32_t offset, unsigned len _U_, char *add_string _U_, int string_len _U_)
{
    uint32_t    curr_offset;
    uint32_t    bit_offset;

    curr_offset = offset;
    bit_offset  = curr_offset << 3;

    proto_tree_add_bits_item(tree, hf_gsm_a_rr_ec_qhfi, tvb, bit_offset, 2, ENC_BIG_ENDIAN);
    bit_offset += 2;
    proto_tree_add_bits_item(tree, hf_gsm_a_rr_ec_dl_cc, tvb, bit_offset, 2, ENC_BIG_ENDIAN);
    bit_offset += 2;
    proto_tree_add_bits_item(tree, hf_gsm_a_rr_ec_ul_cc, tvb, bit_offset, 2, ENC_BIG_ENDIAN);
    bit_offset += 2;
    proto_tree_add_bits_item(tree, hf_gsm_a_rr_tsc_set, tvb, bit_offset, 1, ENC_BIG_ENDIAN);
    bit_offset += 1;
    proto_tree_add_bits_item(tree, hf_gsm_a_rr_ec_tsc, tvb, bit_offset, 3, ENC_BIG_ENDIAN); /*FIXME: use same tsc variable as other msgs (doesn't work with bits_item)*/
    bit_offset += 3;
    proto_tree_add_bits_item(tree, hf_gsm_a_rr_ec_ma_number, tvb, bit_offset, 5, ENC_BIG_ENDIAN);

    return 2;

}

/*
 * [3] 10.5.2.85        EC Packet Channel Description type 2
 */
static uint16_t
de_rr_ec_pkt_ch_dsc2(tvbuff_t *tvb, proto_tree *tree, packet_info *pinfo _U_, uint32_t bit_offset)
{
    proto_tree *subtree;
    uint32_t    curr_bit_offset = bit_offset;

    subtree = proto_tree_add_subtree(tree, tvb, curr_bit_offset>>3, 2, ett_gsm_rr_elem[DE_RR_EC_PKT_CH_DSC2], NULL,
                             val_to_str_ext_const(DE_RR_EC_PKT_CH_DSC2, &gsm_rr_elem_strings_ext, ""));

    proto_tree_add_bits_item(subtree, hf_gsm_a_rr_ec_qhfi, tvb, curr_bit_offset, 2, ENC_BIG_ENDIAN);
    curr_bit_offset += 2;
    proto_tree_add_bits_item(subtree, hf_gsm_a_rr_ec_dl_cc, tvb, curr_bit_offset, 2, ENC_BIG_ENDIAN);
    curr_bit_offset += 2;
    proto_tree_add_bits_item(subtree, hf_gsm_a_rr_ec_ul_cc, tvb, curr_bit_offset, 2, ENC_BIG_ENDIAN);
    curr_bit_offset += 2;
    proto_tree_add_bits_item(subtree, hf_gsm_a_rr_tsc_set, tvb, curr_bit_offset, 1, ENC_BIG_ENDIAN);
    curr_bit_offset += 1;
    proto_tree_add_bits_item(subtree, hf_gsm_a_rr_ec_tsc, tvb, curr_bit_offset, 3, ENC_BIG_ENDIAN); /*FIXME: use same tsc variable as other msgs (doesn't work with bits_item)*/
    curr_bit_offset += 3;
    proto_tree_add_bits_item(subtree, hf_gsm_a_rr_ec_ma_number, tvb, curr_bit_offset, 5, ENC_BIG_ENDIAN);
    curr_bit_offset += 5;

    return curr_bit_offset-bit_offset; /*Bits!*/
}

/*
 * [3] 10.5.2.86        EC Fixed Uplink Allocation
 */
static uint16_t
de_rr_ec_fua(tvbuff_t *tvb, proto_tree *tree, packet_info *pinfo _U_, uint32_t offset, unsigned len, char *add_string _U_, int string_len _U_)
{
    uint32_t    bit_offset;

    bit_offset  = offset << 3;

    proto_tree_add_bits_item(tree, hf_gsm_a_rr_ec_enhanced_access_burst, tvb, bit_offset, 1, ENC_BIG_ENDIAN);
    bit_offset +=1;

    if (gsm_rr_csn_flag(tvb, tree, bit_offset++, hf_gsm_a_rr_timing_adv_present))
    { /* Timing Advance Description */
        proto_tree_add_bits_item(tree, hf_gsm_a_rr_timing_adv, tvb, bit_offset, 6, ENC_BIG_ENDIAN);
        bit_offset += 6;
    }

    proto_tree_add_bits_item(tree, hf_gsm_a_rr_ec_starting_ul_timeslot, tvb, bit_offset, 3, ENC_BIG_ENDIAN);
    bit_offset += 3;
    proto_tree_add_bits_item(tree, hf_gsm_a_rr_tfi_assignment, tvb, bit_offset, 5, ENC_BIG_ENDIAN);
    bit_offset += 5;
    proto_tree_add_bits_item(tree, hf_gsm_a_rr_ec_starting_dl_timeslot_offset, tvb, bit_offset, 2, ENC_BIG_ENDIAN);
    bit_offset += 2;

    proto_tree_add_bits_item(tree, hf_gsm_a_rr_ec_overlaid_cdma_code, tvb, bit_offset, 2, ENC_BIG_ENDIAN);
    bit_offset += 2;

    if (gsm_rr_csn_flag(tvb, tree, bit_offset++, hf_gsm_a_rr_ec_mcs_exist))
    { /* MCS Description */
        proto_tree_add_bits_item(tree, hf_gsm_a_rr_egprs_mcs, tvb, bit_offset, 4, ENC_BIG_ENDIAN);
        bit_offset += 4;
    }

    proto_tree_add_bits_item(tree, hf_gsm_a_rr_gamma, tvb, bit_offset, 5, ENC_BIG_ENDIAN);
    bit_offset += 5;

    if (gsm_rr_csn_flag(tvb, tree, bit_offset++, hf_gsm_a_rr_p0_present))
    {
        proto_tree_add_bits_item(tree, hf_gsm_a_rr_p0, tvb, bit_offset, 4, ENC_BIG_ENDIAN);
        bit_offset += 4;
        proto_tree_add_bits_item(tree, hf_gsm_a_rr_pr_mode, tvb, bit_offset, 1, ENC_BIG_ENDIAN);
        bit_offset += 1;
    }

    proto_tree_add_bits_item(tree, hf_gsm_a_rr_ec_start_first_ul_data_block, tvb, bit_offset, 4, ENC_BIG_ENDIAN);
    bit_offset += 4;

    while(gsm_rr_csn_flag(tvb, tree, bit_offset++, hf_gsm_a_rr_ec_fua_gap_list))
    {
        if (!gsm_rr_csn_flag(tvb, tree, bit_offset++, hf_gsm_a_rr_ec_start_fn_next_data_block_exist))
        {
            proto_tree_add_bits_item(tree, hf_gsm_a_rr_ec_start_fn_next_data_block, tvb, bit_offset, 3, ENC_BIG_ENDIAN);
            bit_offset += 3;
        }
        else
        {
            proto_tree_add_uint(tree, hf_gsm_a_rr_ec_start_fn_next_data_block, tvb, (bit_offset>>3), 0, 0);
        }
    }

    return len;
}

uint16_t (* const rr_elem_fcn[])(tvbuff_t *tvb, proto_tree *tree, packet_info *pinfo, uint32_t offset, unsigned len, char *add_string, int string_len) = {
    /* Radio Resource Management  Information Elements 10.5.2, most are from 10.5.1 */

    de_rr_ba_range,                             /* [3]  10.5.2.1a       BA Range */
    de_rr_cell_ch_dsc,                          /* [3]  10.5.2.1b       Cell Channel Description        */
    de_rr_ba_list_pref,                         /* [3]  10.5.2.1c       BA List Pref                    */
    de_rr_utran_freq_list,                      /* [3]  10.5.2.1d       UTRAN Frequency List            */
    de_rr_cell_select_indic,                    /* [3]  10.5.2.1e       Cell selection indicator after release of all TCH and SDCCH IE */
    de_rr_cell_dsc,                             /* 10.5.2.2   RR Cell Description                       */
    de_rr_cell_opt_bcch,                        /* [3]  10.5.2.3        Cell Options (BCCH)             */
    de_rr_cell_opt_sacch,                       /* [3]  10.5.2.3a       Cell Options (SACCH)            */
    de_rr_cell_sel_param,                       /* [3]  10.5.2.4        Cell Selection Parameters       */
/*
 * [3]  10.5.2.4a       (void)
 */
    de_rr_ch_dsc,                               /* [3]  10.5.2.5        Channel Description             */
    de_rr_ch_dsc2,                              /* [3]  10.5.2.5a   RR Channel Description 2            */
    de_rr_ch_dsc3,                              /* [3]  10.5.2.5c   RR Channel Description 3            */
    de_rr_ch_mode,                              /* [3]  10.5.2.6        Channel Mode                    */
    de_rr_ch_mode2,                             /* [3]  10.5.2.7        Channel Mode 2                  */
    de_rr_utran_cm,                             /* [3]  10.5.2.7a       UTRAN Classmark */
/* [3]  10.5.2.7b       (void) */

    de_rr_cm_enq_mask,                          /* [3]  10.5.2.7c       Classmark Enquiry Mask          */
/* [3]  10.5.2.7d       GERAN Iu Mode Classmark information element                                     */
    de_rr_chnl_needed,                          /* [3]  10.5.2.8        Channel Needed
                                                 * [3]  10.5.2.8a       (void) */
    de_rr_chnl_req_desc2,                       /* [3]  10.5.2.8b       Channel Request Description 2   */
    /* Pos 20 */
    de_rr_cip_mode_set,                         /* [3]  10.5.2.9        Cipher Mode Setting             */
    de_rr_cip_mode_resp,                        /* [3]  10.5.2.10       Cipher Response */
    de_rr_ctrl_ch_desc,                         /* [3]  10.5.2.11       Control Channel Description     */
    de_rr_dtm_info_details,                     /* [3]  10.5.2.11a      DTM Information Details */
    de_rr_dyn_arfcn_map,                        /* [3]  10.5.2.11b      Dynamic ARFCN Mapping           */
    de_rr_freq_ch_seq,                          /* [3]  10.5.2.12       Frequency Channel Sequence      */
    de_rr_freq_list,                            /* [3]  10.5.2.13       Frequency List                  */
    de_rr_freq_short_list,                      /* [3]  10.5.2.14       Frequency Short List            */
    de_rr_freq_short_list2,                     /* [3]  10.5.2.14a      Frequency Short List 2          */
/* [3]  10.5.2.14b      Group Channel Description */
    de_rr_gprs_resumption,                      /* [3]  10.5.2.14c      GPRS Resumption                 */
    de_rr_gprs_broadcast_info,                  /* [3]  10.5.2.14d      GPRS broadcast information      */
/* [3]  10.5.2.14e      Enhanced DTM CS Release Indication */
    de_rr_ho_ref,                               /* 10.5.2.15  Handover Reference                        */
    de_rr_ia_rest_oct,                          /* [3] 10.5.2.16 IA Rest Octets                         */
    de_rr_iar_rest_oct,                         /* [3] 10.5.2.17 IAR Rest Octets                        */
    de_rr_iax_rest_oct,                         /* [3] 10.5.2.18 IAX Rest Octets                        */
    de_rr_l2_pseudo_len,                        /*[3] 10.5.2.19 L2 Pseudo Length                        */
    de_rr_meas_res,                             /* [3] 10.5.2.20 Measurement Results                    */
/*
 * [3] (void)
 */
    de_rr_mob_all,                              /* [3] 10.5.2.21 Mobile Allocation                      */
    de_rr_mob_time_diff,                        /* [3] 10.5.2.21a Mobile Time Difference                */
    de_rr_multirate_conf,                       /* [3] 10.5.2.21aa MultiRate configuration              */
    /* Pos 30 */
    de_rr_mult_all,                             /* [3] 10.5.2.21b Multislot Allocation                  */
/*
 * [3] 10.5.2.21c (void)
 */
    de_rr_neigh_cell_desc,                      /* [3] 10.5.2.22 Neighbour Cell Description             */
    de_rr_neigh_cell_desc2,                     /* [3] 10.5.2.22a Neighbour Cell Description 2          */
/*
 * [3] 10.5.2.22b (void)
 * [3] 10.5.2.22c NT/N Rest Octets */
    de_rr_p1_rest_oct,                          /* [3] 10.5.2.23 P1 Rest Octets                         */
    de_rr_p2_rest_oct,                          /* [3] 10.5.2.24 P2 Rest Octets                         */
    de_rr_p3_rest_oct,                          /* [3] 10.5.2.25 P3 Rest Octets                         */
    de_rr_packet_ch_desc,                       /* [3] 10.5.2.25a Packet Channel Description            */
    de_rr_ded_mod_or_tbf,                       /* [3] 10.5.2.25b Dedicated mode or TBF                 */
    de_rr_pkt_ul_ass,                           /* [3] 10.5.2.25c RR Packet Uplink Assignment           */
    de_rr_pkt_dl_ass,                           /* [3] 10.5.2.25d RR Packet Downlink Assignment         */
    de_rr_pkt_dl_ass_type2,                     /* [3] 10.5.2.25e RR Packet Downlink Assignment Type 2  */
    de_rr_page_mode,                            /* [3] 10.5.2.26 Page Mode                              */
/*
 * [3] 10.5.2.26a (void)
 * [3] 10.5.2.26b (void)
 * [3] 10.5.2.26c (void)
 * [3] 10.5.2.26d (void)
 */
    de_rr_ncc_perm,                             /* [3] 10.5.2.27 NCC Permitted                          */
    de_rr_pow_cmd,                              /* 10.5.2.28  Power Command                             */
    de_rr_pow_cmd_and_acc_type,                 /* 10.5.2.28a Power Command and access type             */
    de_rr_rach_ctrl_param,                      /* [3] 10.5.2.29 RACH Control Parameters                */
    de_rr_req_ref,                              /* [3] 10.5.2.30 Request Reference                      */
    de_rr_cause,                                /* 10.5.2.31  RR Cause                                  */
    de_rr_sync_ind,                             /* 10.5.2.39  Synchronization Indication                */
    de_rr_si1_rest_oct,                         /* [3] 10.5.2.32 SI1 Rest Octets                        */
/* [3] 10.5.2.33 SI 2bis Rest Octets */
    de_rr_si2ter_rest_oct,                      /* [3] 10.5.2.33a SI 2ter Rest Octets                   */
    de_rr_si2quater_rest_oct,                   /* [3] 10.5.2.33b SI 2quater Rest Octets                */
    de_rr_si3_rest_oct,                         /* [3] 10.5.2.34 SI3 Rest Octets                        */
    de_rr_si4_rest_oct,                         /* [3] 10.5.2.35 SI4 Rest Octets                        */
    de_rr_si6_rest_oct,                         /* [3] 10.5.2.35b SI6 Rest Octets                       */
/* [3] 10.5.2.36 SI 7 Rest Octets
 * [3] 10.5.2.37 SI 8 Rest Octets
 * [3] 10.5.2.37a SI 9 Rest Octets
 */
    de_rr_si13_rest_oct,                        /* [3] 10.5.2.37a SI13 Rest Octets                      */
/* [3] 10.5.2.37c (void)
 * [3] 10.5.2.37d (void)
 * [3] 10.5.2.37e SI 16 Rest Octets
 * [3] 10.5.2.37f SI 17 Rest Octets
 * [3] 10.5.2.37g SI 19 Rest Octets
 * [3] 10.5.2.37h SI 18 Rest Octets
 * [3] 10.5.2.37i SI 20 Rest Octets */
    de_rr_si21_rest_oct,                        /* [3] 10.5.2.37m SI21 Rest Octets                      */
    de_rr_starting_time,                        /* [3] 10.5.2.38 Starting Time                          */
    de_rr_timing_adv,                           /* [3] 10.5.2.40 Timing Advance                         */
    de_rr_time_diff,                            /* [3] 10.5.2.41 Time Difference                        */
    de_rr_tlli,                                 /* [3] 10.5.2.41a TLLI                                  */
    de_rr_tmsi_ptmsi,                           /* [3] 10.5.2.42 TMSI/P-TMSI                            */
    de_rr_vgcs_tar_mode_ind,                    /* [3] 10.5.2.42a VGCS target mode Indication           */
    /* Pos 40 */
    de_rr_vgcs_cip_par,                         /* [3] 10.5.2.42b       VGCS Ciphering Parameters       */
    de_rr_wait_ind,                             /* [3] 10.5.2.43 Wait Indication                        */
/* [3] 10.5.2.44 SI10 rest octets $(ASCI)$ */
    de_rr_ext_meas_result,                      /* [3] 10.5.2.45 Extended Measurement Results           */
    de_rr_ext_meas_freq_list,                   /* [3] 10.5.2.46 Extended Measurement Frequency List    */
    de_rr_sus_cau,                              /* [3] 10.5.2.47 Suspension Cause                       */
    de_rr_apdu_id,                              /* [3] 10.5.2.48 APDU ID                                */
    de_rr_apdu_flags,                           /* [3] 10.5.2.49 APDU Flags                             */
    de_rr_apdu_data,                            /* [3] 10.5.2.50 APDU Data */
    de_rr_ho_to_utran_cmd,                      /* [3] 10.5.2.51 Handover To UTRAN Command              */
/* [3] 10.5.2.52 Handover To cdma2000 Command
 * [3] 10.5.2.53 (void)
 * [3] 10.5.2.54 (void)
 * [3] 10.5.2.55 (void)
 * [3] 10.5.2.56 3G Target Cell
 * 10.5.2.57 Service Support */
    de_rr_serv_sup,                             /* 10.5.2.57            Service Support                 */
/*
 * 10.5.2.58 MBMS p-t-m Channel Description
 */
    de_rr_ded_serv_inf,                         /* [3] 10.5.2.59        Dedicated Service Information   */
/*
 * 10.5.2.60 MPRACH Description
 * 10.5.2.61 Restriction Timer
 * 10.5.2.62 MBMS Session Identity
 * 10.5.2.63 Reduced group or broadcast call reference
 * 10.5.2.64 Talker Priority status
 * 10.5.2.65 Talker Identity
 * 10.5.2.66 Token
 * 10.5.2.67 PS Cause
 * 10.5.2.68 VGCS AMR Configuration
 */
    de_rr_carrier_ind,                          /* 10.5.2.69 Carrier Indication                         */
/*
 * 10.5.2.70 SI10bis Rest Octets
 * 10.5.2.71 SI10ter Rest Octets
 * 10.5.2.72 Application Data
 * 10.5.2.73 Data Identity
 * 10.5.2.74 Uplink Access Indication
 * 10.5.2.75 Individual priorities
 */
    de_rr_feature_indicator,                    /* 10.5.2.76 Feature Indicator                          */
/*
 * 10.5.2.77 (void)
 * 10.5.2.78 IPA Rest Octets
 * 10.5.2.79 DL-DCCH-Message
 * 10.5.2.80 CN to MS transparent information
 * 10.5.2.81 PLMN Index
 */
    de_rr_extended_tsc_set,                     /* 10.5.2.82 Extended TSC Set */
    NULL,                                       /* 10.5.2.83 EC Request reference */
    de_rr_ec_pkt_ch_dsc1,                       /* 10.5.2.84 EC Packet Channel Description  Type 1      */
    NULL,                                       /* 10.5.2.85 EC Packet Channel Description  Type 1      */
    de_rr_ec_fua,                               /* 10.5.2.86 EC Fixed Uplink Allocation                 */
    NULL,       /* NONE */
};

/* MESSAGE FUNCTIONS */

/*
 * 9.1.1 Additional Assignment
 */
static void
dtap_rr_add_ass(tvbuff_t *tvb, proto_tree *tree, packet_info *pinfo _U_, uint32_t offset, unsigned len)
{
    uint32_t curr_offset;
    uint32_t consumed;
    unsigned   curr_len;

    curr_offset = offset;
    curr_len = len;

    /* Channel Description  10.5.2.5  M V 3 */
    ELEM_MAND_V(GSM_A_PDU_TYPE_RR, DE_RR_CH_DSC, NULL, ei_gsm_a_rr_missing_mandatory_element);

    /* Mobile Allocation  10.5.2.21  C TLV 3-10 */
    ELEM_OPT_TLV(0x72, GSM_A_PDU_TYPE_RR, DE_RR_MOB_ALL, NULL);

    /* Starting Time  10.5.2.38  O TV 3 */
    ELEM_OPT_TV(0x7c, GSM_A_PDU_TYPE_RR, DE_RR_STARTING_TIME, NULL);

    /* 6D Extended TSC Set      10.5.2.82       O TV 2 */
    ELEM_OPT_TV(0x6d, GSM_A_PDU_TYPE_RR, DE_RR_EXTENDED_TSC_SET, NULL);

    EXTRANEOUS_DATA_CHECK(curr_len, 0, pinfo, &ei_gsm_a_rr_extraneous_data);
}

/*
 * 9.1.2 Assignment command
 */
static void
dtap_rr_ass_cmd(tvbuff_t *tvb, proto_tree *tree, packet_info *pinfo _U_, uint32_t offset, unsigned len)
{
    uint32_t curr_offset;
    uint32_t consumed;
    unsigned   curr_len;

    curr_offset = offset;
    curr_len = len;

    /* Channel Description 2                    10.5.2.5a       M V 3 */
    ELEM_MAND_V(GSM_A_PDU_TYPE_RR, DE_RR_CH_DSC2, " - Description of the First Channel, after time", ei_gsm_a_rr_missing_mandatory_element);

    /* Power Command                            10.5.2.28       M V 1 */
    ELEM_MAND_V(GSM_A_PDU_TYPE_RR, DE_RR_POW_CMD, NULL, ei_gsm_a_rr_missing_mandatory_element);

    /* 05 Frequency List                        10.5.2.13       C TLV 4-132 */
    ELEM_OPT_TLV(0x05, GSM_A_PDU_TYPE_RR, DE_RR_FREQ_LIST, " - Frequency List, after time");

    /* 62 Cell Channel Description              10.5.2.1b       O TV 17 */
    ELEM_OPT_TV(0x62, GSM_A_PDU_TYPE_RR, DE_RR_CELL_CH_DSC, NULL);

    /* 10 Multislot Allocation                  10.5.2.21b      C TLV 3-12 */
    ELEM_OPT_TLV(0x10,GSM_A_PDU_TYPE_RR, DE_RR_MULT_ALL, " - Description of the multislot configuration");

    /* 63 Channel Mode                          10.5.2.6        O TV 2 */
    ELEM_OPT_TV(0x63,GSM_A_PDU_TYPE_RR, DE_RR_CH_MODE, " - Mode of the First Channel(Channel Set 1)");

    /* 11 Channel Mode                          10.5.2.6        O TV 2 */
    ELEM_OPT_TV(0x11,GSM_A_PDU_TYPE_RR, DE_RR_CH_MODE, " - Mode of Channel Set 2");

    /* 13 Channel Mode                          10.5.2.6        O TV 2 */
    ELEM_OPT_TV(0x13,GSM_A_PDU_TYPE_RR, DE_RR_CH_MODE, " - Mode of Channel Set 3");

    /* 14 Channel Mode                          10.5.2.6        O TV 2 */
    ELEM_OPT_TV(0x14,GSM_A_PDU_TYPE_RR, DE_RR_CH_MODE, " - Mode of Channel Set 4");

    /* 15 Channel Mode                          10.5.2.6        O TV 2 */
    ELEM_OPT_TV(0x15,GSM_A_PDU_TYPE_RR, DE_RR_CH_MODE, " - Mode of Channel Set 5");

    /* 16 Channel Mode                          10.5.2.6        O TV 2 */
    ELEM_OPT_TV(0x16,GSM_A_PDU_TYPE_RR, DE_RR_CH_MODE, " - Mode of Channel Set 6");

    /* 17 Channel Mode                          10.5.2.6        O TV 2 */
    ELEM_OPT_TV(0x17,GSM_A_PDU_TYPE_RR, DE_RR_CH_MODE, " - Mode of Channel Set 7");

    /* 18 Channel Mode                          10.5.2.6        O TV 2 */
    ELEM_OPT_TV(0x18,GSM_A_PDU_TYPE_RR, DE_RR_CH_MODE, " - Mode of Channel Set 8");

    /* 64 Channel Description           10.5.2.5        O TV 4 */
    ELEM_OPT_TV(0x64,GSM_A_PDU_TYPE_RR, DE_RR_CH_DSC, "Description of the Second Channel, after time");

    /* 66  Channel Mode 2                       10.5.2.7        O TV 2 */
    ELEM_OPT_TV(0x66,GSM_A_PDU_TYPE_RR, DE_RR_CH_MODE2, " - Mode of the Second Channel");

    /* 72 Mobile Allocation                     10.5.2.21       C TLV 3-10 */
    ELEM_OPT_TLV(0x72,GSM_A_PDU_TYPE_RR, DE_RR_MOB_ALL, " - Mobile Allocation, after time");

    /* 7C Starting Time                         10.5.2.38       O TV 3 */
    ELEM_OPT_TV(0x7C,GSM_A_PDU_TYPE_RR, DE_RR_STARTING_TIME, NULL);

    /* 19 Frequency List                        10.5.2.13       C TLV 4-132 */
    ELEM_OPT_TLV(0x19, GSM_A_PDU_TYPE_RR, DE_RR_FREQ_LIST, " - Frequency List, before time");

    /* 1C Channel Description 2                 10.5.2.5a       O TV 4 */
    ELEM_OPT_TV(0x1c,GSM_A_PDU_TYPE_RR, DE_RR_CH_DSC2, " - Description of the First Channel, before time");

    /* 1D Channel Description                   10.5.2.5        O TV 4 */
    ELEM_OPT_TV(0x1d,GSM_A_PDU_TYPE_RR, DE_RR_CH_DSC, " - Description of the Second Channel, before time");

    /* 1E Frequency channel sequence            10.5.2.12  C TV 10 */
    ELEM_OPT_TV(0x1e,GSM_A_PDU_TYPE_RR, DE_RR_FREQ_CH_SEQ, " - Frequency channel sequence before time");

    /* 21 Mobile Allocation                     10.5.2.21       C TLV 3-10 */
    ELEM_OPT_TLV(0x21,GSM_A_PDU_TYPE_RR, DE_RR_MOB_ALL, " - Mobile Allocation, before time");

    /* 9- Cipher Mode Setting                   10.5.2.9        O TV 1 */
    ELEM_OPT_TV_SHORT(0x90,GSM_A_PDU_TYPE_RR, DE_RR_CIP_MODE_SET, NULL);
    /* 01 VGCS target mode Indication VGCS target mode Indication 10.5.2.42a O TLV 3 */
    ELEM_OPT_TLV(0x01,GSM_A_PDU_TYPE_RR, DE_RR_VGCS_TAR_MODE_IND, NULL);

    /* 03 Multi-Rate configuration,     MultiRate configuration 10.5.2.21aa     O TLV 4-8 */
    ELEM_OPT_TLV(0x03,GSM_A_PDU_TYPE_RR, DE_RR_MULTIRATE_CONF, NULL);

    /* 04 VGCS Ciphering Parameters VGCS Ciphering Parameters 10.5.2.42b O TLV 3-15     */
    ELEM_OPT_TLV(0x04,GSM_A_PDU_TYPE_RR, DE_RR_VGCS_CIP_PAR, NULL);

    /* 6D Extended TSC Set      10.5.2.82       O TV 2 */
    ELEM_OPT_TV(0x6d, GSM_A_PDU_TYPE_RR, DE_RR_EXTENDED_TSC_SET, " - Extended TSC Set, after time");

    /* 6E Extended TSC Set      10.5.2.82       O TV 2 */
    ELEM_OPT_TV(0x6e, GSM_A_PDU_TYPE_RR, DE_RR_EXTENDED_TSC_SET, " - Extended TSC Set, before time");

    EXTRANEOUS_DATA_CHECK(curr_len, 0, pinfo, &ei_gsm_a_rr_extraneous_data);

}

/*
 * 9.1.3 Assignment complete
 */
static void
dtap_rr_ass_comp(tvbuff_t *tvb, proto_tree *tree, packet_info *pinfo _U_, uint32_t offset, unsigned len)
{
    uint32_t curr_offset;
    uint32_t consumed;
    unsigned   curr_len;

    curr_offset = offset;
    curr_len = len;

    /* RR Cause RR Cause 10.5.2.31 M V 1 */
    ELEM_MAND_V(GSM_A_PDU_TYPE_RR, DE_RR_CAUSE, NULL, ei_gsm_a_rr_missing_mandatory_element);

    EXTRANEOUS_DATA_CHECK(curr_len, 0, pinfo, &ei_gsm_a_rr_extraneous_data);

}

/*
 * 9.1.4 Assignment failure
 */
static void
dtap_rr_ass_fail(tvbuff_t *tvb, proto_tree *tree, packet_info *pinfo _U_, uint32_t offset, unsigned len)
{
    uint32_t curr_offset;
    uint32_t consumed;
    unsigned   curr_len;

    curr_offset = offset;
    curr_len = len;

    /* RR Cause RR Cause 10.5.2.31 M V 1 */
    ELEM_MAND_V(GSM_A_PDU_TYPE_RR, DE_RR_CAUSE, NULL, ei_gsm_a_rr_missing_mandatory_element);

    EXTRANEOUS_DATA_CHECK(curr_len, 0, pinfo, &ei_gsm_a_rr_extraneous_data);

}

/*
 * 9.1.5 Channel Mode Modify
 */
static void
dtap_rr_ch_mode_mod(tvbuff_t *tvb, proto_tree *tree, packet_info *pinfo _U_, uint32_t offset, unsigned len)
{
    uint32_t curr_offset;
    uint32_t consumed;
    unsigned   curr_len;

    curr_offset = offset;
    curr_len = len;

    /* Channel Description 2    10.5.2.5a       M V 3 */
    ELEM_MAND_V(GSM_A_PDU_TYPE_RR, DE_RR_CH_DSC2, NULL, ei_gsm_a_rr_missing_mandatory_element);

    /* Channel Mode             10.5.2.6        M V 1 */
    ELEM_MAND_V(GSM_A_PDU_TYPE_RR, DE_RR_CH_MODE, NULL, ei_gsm_a_rr_missing_mandatory_element);

    /* 01 VGCS target mode Indication VGCS target mode Indication 10.5.2.42a O TLV 3 */
    ELEM_OPT_TLV(0x01,GSM_A_PDU_TYPE_RR, DE_RR_VGCS_TAR_MODE_IND, NULL);

    /* 03 Multi-Rate configuration,     MultiRate configuration 10.5.2.21aa     O TLV 4-8 */
    ELEM_OPT_TLV(0x03,GSM_A_PDU_TYPE_RR, DE_RR_MULTIRATE_CONF, NULL);

    /* 6D Extended TSC Set      10.5.2.82       O TV 2 */
    ELEM_OPT_TV(0x6d, GSM_A_PDU_TYPE_RR, DE_RR_EXTENDED_TSC_SET, NULL);

    EXTRANEOUS_DATA_CHECK(curr_len, 0, pinfo, &ei_gsm_a_rr_extraneous_data);

}

/*
 * 9.1.6 Channel Mode Modify Acknowledge
 */
static void
dtap_rr_ch_mode_mod_ack(tvbuff_t *tvb, proto_tree *tree, packet_info *pinfo _U_, uint32_t offset, unsigned len)
{
    uint32_t curr_offset;
    uint32_t consumed;
    unsigned   curr_len;

    curr_offset = offset;
    curr_len = len;

    /* Channel Description 2    10.5.2.5a       M V 3 */
    ELEM_MAND_V(GSM_A_PDU_TYPE_RR, DE_RR_CH_DSC2, NULL, ei_gsm_a_rr_missing_mandatory_element);

    /* Channel Mode             10.5.2.6        M V 1 */
    ELEM_MAND_V(GSM_A_PDU_TYPE_RR, DE_RR_CH_MODE, NULL, ei_gsm_a_rr_missing_mandatory_element);

    /* 6D Extended TSC Set      10.5.2.82       C TV 2 */
    ELEM_OPT_TV(0x6d, GSM_A_PDU_TYPE_RR, DE_RR_EXTENDED_TSC_SET, NULL);

    EXTRANEOUS_DATA_CHECK(curr_len, 0, pinfo, &ei_gsm_a_rr_extraneous_data);

}

/*
 * 9.1.7 Channel Release
 */
static void
dtap_rr_ch_rel(tvbuff_t *tvb, proto_tree *tree, packet_info *pinfo _U_, uint32_t offset, unsigned len)
{
    uint32_t curr_offset;
    uint32_t consumed;
    unsigned   curr_len;

    curr_offset = offset;
    curr_len = len;

    /* RR Cause RR Cause 10.5.2.31 M V 1 */
    ELEM_MAND_V(GSM_A_PDU_TYPE_RR, DE_RR_CAUSE, NULL, ei_gsm_a_rr_missing_mandatory_element);

    /* 73 BA Range BA Range 10.5.2.1a O TLV 6-7 */
    ELEM_OPT_TLV(0x73, GSM_A_PDU_TYPE_RR, DE_RR_BA_RANGE, NULL);

    /* 74 Group Channel Description Group Channel Description 10.5.2.14b O TLV 5-13 */
    /* ELEM_OPT_TLV(0x74, GSM_A_PDU_TYPE_RR, DE_GRP_CH_DESC, NULL); */

    /* 8x Group Cipher Key Number Group Cipher Key Number 10.5.1.10 C TV 1 */
    /* ELEM_OPT_TV_SHORT(0x80, GSM_A_PDU_TYPE_RR, DE_GRP_CIP_KEY_NUM, NULL); */

    /* Cx GPRS Resumption GPRS Resumption 10.5.2.14c O TV 1 */
    ELEM_OPT_TV_SHORT(0xC0, GSM_A_PDU_TYPE_RR, DE_RR_GPRS_RESUMPTION, NULL);

    /* 75 BA List Pref BA List Pref 10.5.2.1c O TLV 3-? */
    ELEM_OPT_TLV(0x75, GSM_A_PDU_TYPE_RR, DE_RR_BA_LIST_PREF, NULL);

    /* 76 UTRAN Freq List 10.5.2.1d O TLV 3-? */
    ELEM_OPT_TLV(0x76, GSM_A_PDU_TYPE_RR, DE_RR_UTRAN_FREQ_LIST, NULL);

    /* 62 Cell Channel Description Cell Channel Description 10.5.2.1b O TV 17 */
    ELEM_OPT_TV(0x62, GSM_A_PDU_TYPE_RR, DE_RR_CELL_CH_DSC, NULL);

    /* 77 Cell selection indicator after release of all TCH and SDCCH 10.5.2.1e O TLV 4-? */
    ELEM_OPT_TLV(0x77, GSM_A_PDU_TYPE_RR, DE_RR_CELL_SELECT_INDIC, NULL);

    EXTRANEOUS_DATA_CHECK(curr_len, 0, pinfo, &ei_gsm_a_rr_extraneous_data);

}

/*
 * 9.1.8 Channel Request
 */
/* This message is NOT follow the basic format, and is only found on RACH - ignored here */

/*
 * 9.1.9 Ciphering Mode Command
 */
static void
dtap_rr_cip_mode_cmd(tvbuff_t *tvb, proto_tree *tree, packet_info *pinfo _U_, uint32_t offset, unsigned len)
{
    uint32_t curr_offset;
    unsigned   curr_len;

    curr_offset = offset;
    curr_len = len;

    /* Ciphering Mode Setting           10.5.2.9        M V 0.5 */
    /* Cipher Response                  10.5.2.10       M V 0.5 */
    ELEM_MAND_VV_SHORT(GSM_A_PDU_TYPE_RR, DE_RR_CIP_MODE_SET,
                       GSM_A_PDU_TYPE_RR, DE_RR_CIP_MODE_RESP, ei_gsm_a_rr_missing_mandatory_element);

    EXTRANEOUS_DATA_CHECK(curr_len, 0, pinfo, &ei_gsm_a_rr_extraneous_data);

}
/*
 * 9.1.10 Ciphering Mode Complete
 */
void
dtap_rr_cip_mode_cpte(tvbuff_t *tvb, proto_tree *tree, packet_info *pinfo _U_, uint32_t offset, unsigned len)
{
    uint32_t curr_offset;
    uint32_t consumed;
    unsigned   curr_len;

    curr_offset = offset;
    curr_len = len;

    /* Mobile Equipment Identity                10.5.1.4        O TLV */
    ELEM_OPT_TLV(0x17, GSM_A_PDU_TYPE_COMMON, DE_MID, "Mobile Equipment Identity");

    EXTRANEOUS_DATA_CHECK(curr_len, 0, pinfo, &ei_gsm_a_rr_extraneous_data);

}

/*
 * 9.1.11 Classmark change
 */
static void
dtap_rr_mm_cm_change(tvbuff_t *tvb, proto_tree *tree, packet_info *pinfo _U_, uint32_t offset, unsigned len)
{
    uint32_t curr_offset;
    uint32_t consumed;
    unsigned   curr_len;

    curr_offset = offset;
    curr_len = len;

    /* Mobile Station Classmark 2               10.5.1.6        M LV 4 */
    ELEM_MAND_LV(GSM_A_PDU_TYPE_COMMON, DE_MS_CM_2, NULL, ei_gsm_a_rr_missing_mandatory_element);
    /* 20 Mobile Station Classmark 3            10.5.1.7        C TLV 3-34 */
    ELEM_OPT_TLV(0x20, GSM_A_PDU_TYPE_COMMON, DE_MS_CM_3, NULL);

    EXTRANEOUS_DATA_CHECK(curr_len, 0, pinfo, &ei_gsm_a_rr_extraneous_data);

}

/*
 * 9.1.11 UTRAN Classmark Change
 */
static void
dtap_rr_utran_classmark_change(tvbuff_t *tvb, proto_tree *tree, packet_info *pinfo _U_, uint32_t offset, unsigned len)
{
    uint32_t curr_offset;
    uint32_t consumed;
    unsigned   curr_len;

    curr_offset = offset;
    curr_len = len;

    /* UTRAN Classmark          10.5.2.7a       M LV 2-? */
    ELEM_MAND_LV(GSM_A_PDU_TYPE_RR, DE_RR_UTRAN_CM, NULL, ei_gsm_a_rr_missing_mandatory_element);

    EXTRANEOUS_DATA_CHECK(curr_len, 0, pinfo, &ei_gsm_a_rr_extraneous_data);
}

/*
 * 9.1.12 Classmark enquiry
 */
static void
dtap_rr_cm_enq(tvbuff_t *tvb, proto_tree *tree, packet_info *pinfo _U_, uint32_t offset, unsigned len)
{
    uint32_t curr_offset;
    uint32_t consumed;
    unsigned   curr_len;

    curr_offset = offset;
    curr_len = len;

    /* 10 Classmark Enquiry Mask        10.5.2.7c       O TLV 3 */
    ELEM_OPT_TLV(0x10, GSM_A_PDU_TYPE_RR, DE_RR_CM_ENQ_MASK, NULL);

    EXTRANEOUS_DATA_CHECK(curr_len, 0, pinfo, &ei_gsm_a_rr_extraneous_data);

}

/*
 * 9.1.12b Configuration change command
 */
static void
dtap_rr_conf_change_cmd(tvbuff_t *tvb, proto_tree *tree, packet_info *pinfo _U_, uint32_t offset, unsigned len)
{
    uint32_t curr_offset;
    uint32_t consumed;
    unsigned   curr_len;

    curr_offset = offset;
    curr_len = len;

    /* Multislot Allocation  10.5.2.21b  M LV 2-11 */
    ELEM_MAND_LV(GSM_A_PDU_TYPE_RR, DE_RR_MULT_ALL, NULL, ei_gsm_a_rr_missing_mandatory_element);

    /* Channel Mode  10.5.2.6  O TV 2 */
    ELEM_OPT_TV(0x63,GSM_A_PDU_TYPE_RR, DE_RR_CH_MODE, " - Mode of Channel Set 1");

    /* Channel Mode  10.5.2.6  O TV 2 */
    ELEM_OPT_TV(0x11,GSM_A_PDU_TYPE_RR, DE_RR_CH_MODE, " - Mode of Channel Set 2");

    /* Channel Mode  10.5.2.6  O TV 2 */
    ELEM_OPT_TV(0x13,GSM_A_PDU_TYPE_RR, DE_RR_CH_MODE, " - Mode of Channel Set 3");

    /* Channel Mode  10.5.2.6  O TV 2 */
    ELEM_OPT_TV(0x14,GSM_A_PDU_TYPE_RR, DE_RR_CH_MODE, " - Mode of Channel Set 4");

    /* Channel Mode  10.5.2.6  O TV 2 */
    ELEM_OPT_TV(0x15,GSM_A_PDU_TYPE_RR, DE_RR_CH_MODE, " - Mode of Channel Set 5");

    /* Channel Mode  10.5.2.6  O TV 2 */
    ELEM_OPT_TV(0x16,GSM_A_PDU_TYPE_RR, DE_RR_CH_MODE, " - Mode of Channel Set 6");

    /* Channel Mode  10.5.2.6  O TV 2 */
    ELEM_OPT_TV(0x17,GSM_A_PDU_TYPE_RR, DE_RR_CH_MODE, " - Mode of Channel Set 7");

    /* Channel Mode  10.5.2.6  O TV 2 */
    ELEM_OPT_TV(0x18,GSM_A_PDU_TYPE_RR, DE_RR_CH_MODE, " - Mode of Channel Set 8");

    EXTRANEOUS_DATA_CHECK(len, curr_offset - offset, pinfo, &ei_gsm_a_rr_extraneous_data);
}

/*
 * 9.1.12c      Configuration change acknowledge
 */
/* empty message */

/*
 * 9.1.12d      Configuration change reject
 */
static void
dtap_rr_conf_change_rej(tvbuff_t *tvb, proto_tree *tree, packet_info *pinfo _U_, uint32_t offset, unsigned len)
{
    uint32_t curr_offset;
    uint32_t consumed;
    unsigned   curr_len;

    curr_offset = offset;
    curr_len = len;

    /* RR Cause  10.5.2.31  M V 1 */
    ELEM_MAND_V(GSM_A_PDU_TYPE_RR, DE_RR_CAUSE, NULL, ei_gsm_a_rr_missing_mandatory_element);

    EXTRANEOUS_DATA_CHECK(curr_len, 0, pinfo, &ei_gsm_a_rr_extraneous_data);
}

/*
 * 9.1.12e DTM Assignment Command
 */
static void
dtap_rr_dtm_ass_cmd(tvbuff_t *tvb, proto_tree *tree, packet_info *pinfo _U_, uint32_t offset, unsigned len)
{
    uint32_t curr_offset;
    uint32_t consumed;
    unsigned   curr_len;

    curr_offset = offset;
    curr_len = len;

    /* CS Power Command 10.5.2.28 M V 1 */
    ELEM_MAND_V(GSM_A_PDU_TYPE_RR, DE_RR_POW_CMD, NULL, ei_gsm_a_rr_missing_mandatory_element);

    /* Description of the CS Channel 10.5.2.5 M V 3 */
    ELEM_MAND_V(GSM_A_PDU_TYPE_RR, DE_RR_CH_DSC, NULL, ei_gsm_a_rr_missing_mandatory_element);

    /* GPRS broadcast information 10.5.2.14d M LV 7 - n */
    ELEM_MAND_LV(GSM_A_PDU_TYPE_RR, DE_RR_GPRS_BROADCAST_INFORMATION, NULL, ei_gsm_a_rr_missing_mandatory_element);

    /* 10 Cell Channel Description 10.5.2.1b O TV 17 */
    ELEM_OPT_TV(0x10, GSM_A_PDU_TYPE_RR, DE_RR_CELL_CH_DSC, NULL);

    /* 11 Channel mode Channel mode 10.5.2.6 O TV 2 */
    ELEM_OPT_TV(0x11,GSM_A_PDU_TYPE_RR, DE_RR_CH_MODE, NULL);
    /* 12 Frequency List Frequency List 10.5.2.13 C TLV 4 - 132 */
    ELEM_OPT_TLV(0x12, GSM_A_PDU_TYPE_RR, DE_RR_FREQ_LIST, NULL);
    /* 13 Mobile Allocation Mobile Allocation 10.5.2.21 C TLV 3 - 10 */
    ELEM_OPT_TLV(0x13, GSM_A_PDU_TYPE_RR, DE_RR_MOB_ALL, NULL);

    /* 15 Description of the Uplink Packet Channel Assignment RR Packet Uplink Assignment 10.5.2.25c O TLV 3 - n */
    ELEM_OPT_TLV(0x15, GSM_A_PDU_TYPE_RR, DE_RR_PKT_UL_ASS, NULL);

    /* 16 Description of the Downlink Packet Channel Assignment RR Packet Downlink Assignment 10.5.2.25d O TLV 3 - n */
    ELEM_OPT_TLV(0x16, GSM_A_PDU_TYPE_RR, DE_RR_PKT_DL_ASS, NULL);

    /* 17 Multi-Rate configuration MultiRate configuration 10.5.2.21aa O TLV 4-8  */
    ELEM_OPT_TLV(0x17,GSM_A_PDU_TYPE_RR, DE_RR_MULTIRATE_CONF, NULL);

    /* 9- Ciphering Mode Setting Ciphering Mode Setting 10.5.2.9 O TV 1 */
    ELEM_OPT_TV_SHORT(0x90,GSM_A_PDU_TYPE_RR, DE_RR_CIP_MODE_SET, NULL);

    /* 18 Mobile Allocation C2 Mobile Allocation 10.5.2.21 C TLV 3 - 10 */
    ELEM_OPT_TLV(0x18, GSM_A_PDU_TYPE_RR, DE_RR_MOB_ALL, " - C2");

    /* 19 Frequency List C2 Frequency List 10.5.2.13 C TLV 4 - 132 */
    ELEM_OPT_TLV(0x19, GSM_A_PDU_TYPE_RR, DE_RR_FREQ_LIST, " - C2");

    /* 20 Description of the Downlink Packet Channel Assignment Type 2 RR Packet Downlink Assignment Type 2 10.5.2.25e C TLV 3 n */
    ELEM_OPT_TLV(0x20, GSM_A_PDU_TYPE_RR, DE_RR_PKT_DL_ASS_TYPE2, NULL);

    /* 21 Channel Description C2 Channel Description 3 10.5.2.5c O TV 3 */
    ELEM_OPT_TV(0x21,GSM_A_PDU_TYPE_RR, DE_RR_CH_DSC3, " - Channel Description C2");

    /* 6D Extended TSC Set      10.5.2.82       C TV 2 */
    ELEM_OPT_TV(0x6d, GSM_A_PDU_TYPE_RR, DE_RR_EXTENDED_TSC_SET, NULL);

    EXTRANEOUS_DATA_CHECK(curr_len, 0, pinfo, &ei_gsm_a_rr_extraneous_data);
}

/*
 * 9.1.12f DTM Assignment Failure
 */
static void
dtap_rr_dtm_ass_fail(tvbuff_t *tvb, proto_tree *tree, packet_info *pinfo _U_, uint32_t offset, unsigned len)
{
    uint32_t curr_offset;
    uint32_t consumed;
    unsigned   curr_len;

    curr_offset = offset;
    curr_len = len;

    /* RR Cause RR Cause 10.5.2.31 M V 1 */
    ELEM_MAND_V(GSM_A_PDU_TYPE_RR, DE_RR_CAUSE, NULL, ei_gsm_a_rr_missing_mandatory_element);

    EXTRANEOUS_DATA_CHECK(len, curr_offset - offset, pinfo, &ei_gsm_a_rr_extraneous_data);
}

/*
 * 9.1.12g DTM Information
 */
static void
dtap_rr_dtm_info(tvbuff_t *tvb, proto_tree *tree, packet_info *pinfo _U_, uint32_t offset, unsigned len)
{
    uint32_t curr_offset;
    uint32_t consumed;
    unsigned   curr_len;

    curr_offset = offset;
    curr_len = len;

    /* Routeing Area Identification 10.5.5.15 M V 6 */
    ELEM_MAND_V(GSM_A_PDU_TYPE_GM, DE_RAI, NULL, ei_gsm_a_rr_missing_mandatory_element);

    /* DTM Information Details 10.5.2.11a M LV 4-n */
    ELEM_MAND_LV(GSM_A_PDU_TYPE_RR, DE_RR_DTM_INFO_DETAILS, NULL, ei_gsm_a_rr_missing_mandatory_element);

    EXTRANEOUS_DATA_CHECK(len, curr_offset - offset, pinfo, &ei_gsm_a_rr_extraneous_data);
}

/*
 * 9.1.12h DTM Reject
 */
static void
dtap_rr_dtm_rej(tvbuff_t *tvb, proto_tree *tree, packet_info *pinfo _U_, uint32_t offset, unsigned len)
{
    uint32_t curr_offset;
    uint32_t consumed;
    unsigned   curr_len;

    curr_offset = offset;
    curr_len = len;

    /* Wait indication 10.5.2.43 M V 1 */
    ELEM_MAND_V(GSM_A_PDU_TYPE_RR, DE_RR_WAIT_IND, " - DTM Wait Indication", ei_gsm_a_rr_missing_mandatory_element);

    EXTRANEOUS_DATA_CHECK(len, curr_offset - offset, pinfo, &ei_gsm_a_rr_extraneous_data);
}

/*
 * 9.1.12i DTM Request
 */
static void
dtap_rr_dtm_req(tvbuff_t *tvb, proto_tree *tree, packet_info *pinfo _U_, uint32_t offset, unsigned len)
{
    uint32_t curr_offset;
    uint32_t consumed;
    unsigned   curr_len;

    curr_offset = offset;
    curr_len = len;

    /* TLLI 10.5.2.41a M V 4 */
    ELEM_MAND_V(GSM_A_PDU_TYPE_RR, DE_RR_TLLI, NULL, ei_gsm_a_rr_missing_mandatory_element);

    /* Channel Request Description 2 M LV 5-n */
    ELEM_MAND_LV(GSM_A_PDU_TYPE_RR, DE_RR_CHNL_REQ_DESC2, NULL, ei_gsm_a_rr_missing_mandatory_element);

    EXTRANEOUS_DATA_CHECK(len, curr_offset - offset, pinfo, &ei_gsm_a_rr_extraneous_data);
}

/*
 * 9.1.13 Frequency Redefinition
 */
static void
dtap_rr_freq_redef(tvbuff_t *tvb, proto_tree *tree, packet_info *pinfo _U_, uint32_t offset, unsigned len)
{
    uint32_t curr_offset;
    uint32_t consumed;
    unsigned   curr_len;

    curr_offset = offset;
    curr_len = len;

    /* Channel Description  10.5.2.5  M V 3 */
    ELEM_MAND_V(GSM_A_PDU_TYPE_RR, DE_RR_CH_DSC, NULL, ei_gsm_a_rr_missing_mandatory_element);

    /* Mobile Allocation  10.5.2.21  M LV 1-9 */
    ELEM_MAND_LV(GSM_A_PDU_TYPE_RR, DE_RR_MOB_ALL, NULL, ei_gsm_a_rr_missing_mandatory_element);

    /* Starting Time  10.5.2.38  M V 2 */
    ELEM_MAND_LV(GSM_A_PDU_TYPE_RR, DE_RR_STARTING_TIME, NULL, ei_gsm_a_rr_missing_mandatory_element);

    /* Cell Channel Description  10.5.2.1b  O TV 17 */
    ELEM_OPT_TV(0x62,GSM_A_PDU_TYPE_RR, DE_RR_CELL_CH_DSC, NULL);

    /* Carrier Indication  10.5.2.69  O TV 1 */
    ELEM_OPT_TV_SHORT(0x90,GSM_A_PDU_TYPE_RR, DE_RR_CARRIER_IND,NULL);

    /* Mobile Allocation  10.5.2.21  O TLV 1-9 */
    ELEM_OPT_TLV(0x11, GSM_A_PDU_TYPE_RR, DE_RR_MOB_ALL, " - Mobile Allocation C2");

    /* Channel Description 3  10.5.2.5c  O TV 3 */
    ELEM_OPT_TV(0x12,GSM_A_PDU_TYPE_RR, DE_RR_CH_DSC3, " - Channel Description C2");

    /* 6D Extended TSC Set      10.5.2.82       C TV 2 */
    ELEM_OPT_TV(0x6d, GSM_A_PDU_TYPE_RR, DE_RR_EXTENDED_TSC_SET, NULL);

    EXTRANEOUS_DATA_CHECK(len, curr_offset - offset, pinfo, &ei_gsm_a_rr_extraneous_data);
}

/*
 * 9.1.13b GPRS suspension request
 */
static void
dtap_rr_gprs_sus_req(tvbuff_t *tvb, proto_tree *tree, packet_info *pinfo _U_, uint32_t offset, unsigned len)
{
    uint32_t curr_offset;
    uint32_t consumed;
    unsigned   curr_len;

    curr_offset = offset;
    curr_len = len;

    /* TLLI                                                             10.5.2.41a      M V 4 */
    ELEM_MAND_V(GSM_A_PDU_TYPE_RR, DE_RR_TLLI, NULL, ei_gsm_a_rr_missing_mandatory_element);

    /* Routeing Area Identification                     10.5.5.15       M V 6 */
    ELEM_MAND_V(GSM_A_PDU_TYPE_GM, DE_RAI, NULL, ei_gsm_a_rr_missing_mandatory_element);
    /* Suspension cause                                 10.5.2.47       M V 1 */
    ELEM_MAND_V(GSM_A_PDU_TYPE_RR, DE_RR_SUS_CAU, NULL, ei_gsm_a_rr_missing_mandatory_element);

    /* 01 Service Support                               10.5.2.57       O TV 2 */
    ELEM_OPT_TV_SHORT(0x01,GSM_A_PDU_TYPE_RR, DE_RR_SERV_SUP,NULL);

    EXTRANEOUS_DATA_CHECK(len, curr_offset - offset, pinfo, &ei_gsm_a_rr_extraneous_data);

}

/*
 * 9.1.14 Handover Access
 */
/* This message does NOT follow the basic format, and is only found on DCH during initial handover access */

/* 3GPP TS 24.008 version 4.7.0 Release 4
 * [3] 9.1.15
 */
void
dtap_rr_ho_cmd(tvbuff_t *tvb, proto_tree *tree, packet_info *pinfo _U_, uint32_t offset, unsigned len)
{
    uint32_t curr_offset;
    uint32_t consumed;
    unsigned   curr_len;

    curr_offset = offset;
    curr_len = len;

    /* Mandatory Elements
     * Cell description 10.5.2.2
     */
    ELEM_MAND_V(GSM_A_PDU_TYPE_RR, DE_RR_CELL_DSC, NULL, ei_gsm_a_rr_missing_mandatory_element);

    /* Description of the first channel,after time
     * Channel Description 2 10.5.2.5a
     */
    ELEM_MAND_V(GSM_A_PDU_TYPE_RR, DE_RR_CH_DSC2, " - Description of the first channel, after time", ei_gsm_a_rr_missing_mandatory_element);

    /* Handover Reference 10.5.2.15 */
    ELEM_MAND_V(GSM_A_PDU_TYPE_RR, DE_RR_HO_REF, NULL, ei_gsm_a_rr_missing_mandatory_element);

    /* Power Command and Access type 10.5.2.28a */
    ELEM_MAND_V(GSM_A_PDU_TYPE_RR, DE_RR_POW_CMD_AND_ACC_TYPE, NULL, ei_gsm_a_rr_missing_mandatory_element);

    /* optional elements */

    /* Synchronization Indication 10.5.2.39 */
    ELEM_OPT_TV_SHORT(0xD0,GSM_A_PDU_TYPE_RR, DE_RR_SYNC_IND,NULL);

    /* Frequency Short List 10.5.2.14 */
    ELEM_OPT_TV(0x02,GSM_A_PDU_TYPE_RR, DE_RR_FREQ_SHORT_LIST," - Frequency Short List, after time");

    /* Frequency List 10.5.2.13 */
    ELEM_OPT_TLV(0x05, GSM_A_PDU_TYPE_RR, DE_RR_FREQ_LIST, " - Frequency List, after time");

    /* Cell Channel Description 10.5.2.1b */
    ELEM_OPT_TV(0x62,GSM_A_PDU_TYPE_RR, DE_RR_CELL_CH_DSC, NULL);

    /* Multislot Allocation 10.5.2.21b */
    ELEM_OPT_TLV(0x10,GSM_A_PDU_TYPE_RR, DE_RR_MULT_ALL, NULL);

    /* Mode of the First Channel(Channel Set 1)) Channel Mode 10.5.2.6*/
    ELEM_OPT_TV(0x63,GSM_A_PDU_TYPE_RR, DE_RR_CH_MODE, " - Mode of the First Channel(Channel Set 1))");

    /* Mode of Channel Set 2 Channel Mode 10.5.2.6*/
    ELEM_OPT_TV(0x11,GSM_A_PDU_TYPE_RR, DE_RR_CH_MODE, " - Mode of Channel Set 2");

    /* Mode of Channel Set 3 Channel Mode 10.5.2.6*/
    ELEM_OPT_TV(0x13,GSM_A_PDU_TYPE_RR, DE_RR_CH_MODE, " - Mode of Channel Set 3");

    /* Mode of Channel Set 4 Channel Mode 10.5.2.6*/
    ELEM_OPT_TV(0x14,GSM_A_PDU_TYPE_RR, DE_RR_CH_MODE, " - Mode of Channel Set 4");

    /* Mode of Channel Set 5 Channel Mode 10.5.2.6*/
    ELEM_OPT_TV(0x15,GSM_A_PDU_TYPE_RR, DE_RR_CH_MODE, " - Mode of Channel Set 5");

    /* Mode of Channel Set 6 Channel Mode 10.5.2.6*/
    ELEM_OPT_TV(0x16,GSM_A_PDU_TYPE_RR, DE_RR_CH_MODE, " - Mode of Channel Set 6");

    /* Mode of Channel Set 7 Channel Mode 10.5.2.6*/
    ELEM_OPT_TV(0x17,GSM_A_PDU_TYPE_RR, DE_RR_CH_MODE, " - Mode of Channel Set 7");

    /* Mode of Channel Set 8 Channel Mode 10.5.2.6*/
    ELEM_OPT_TV(0x18,GSM_A_PDU_TYPE_RR, DE_RR_CH_MODE, " - Mode of Channel Set 8");

    /* Description of the Second Channel, after time, Channel Description 10.5.2.5 */
    ELEM_OPT_TV(0x64,GSM_A_PDU_TYPE_RR, DE_RR_CH_DSC, " - Description of the Second Channel, after time");

    /* Mode of the Second Channel, Channel Mode 2 10.5.2.7 */
    ELEM_OPT_TV(0x66,GSM_A_PDU_TYPE_RR, DE_RR_CH_MODE2, " - Mode of the Second Channel");

    /* Frequency Channel Sequence, after time, Frequency Channel Sequence 10.5.2.12 */
    ELEM_OPT_TV(0x69,GSM_A_PDU_TYPE_RR, DE_RR_FREQ_CH_SEQ, " - Frequency Channel Sequence, after time");

    /* Mobile Allocation, after time, Mobile Allocation 10.5.2.21 */
    ELEM_OPT_TLV(0x72,GSM_A_PDU_TYPE_RR, DE_RR_MOB_ALL, " - Mobile Allocation, after time");

    /* Starting Time 10.5.2.38 */
    ELEM_OPT_TV(0x7C,GSM_A_PDU_TYPE_RR, DE_RR_STARTING_TIME, NULL);

    /* Real Time Difference, Time Difference 10.5.2.41 */
    ELEM_OPT_TV(0x7B,GSM_A_PDU_TYPE_RR, DE_RR_TIME_DIFF, " - Real Time Difference");

    /* Timing Advance, Timing Advance 10.5.2.40 */
    ELEM_OPT_TV(0x7D,GSM_A_PDU_TYPE_RR, DE_RR_TIMING_ADV, NULL);

    /* Frequency Short List, before time, Frequency Short List 10.5.2.14 */
    ELEM_OPT_TV(0x12,GSM_A_PDU_TYPE_RR, DE_RR_FREQ_SHORT_LIST, " - Frequency Short List, before time");

    /* Frequency List, before time,     Frequency List 10.5.2.13 */
    ELEM_OPT_TLV(0x19,GSM_A_PDU_TYPE_RR, DE_RR_FREQ_LIST, " - Frequency List, before time");

    /* Description of the First Channel, before time,   Channel Description 2 10.5.2.5a*/
    ELEM_OPT_TV(0x1c,GSM_A_PDU_TYPE_RR, DE_RR_CH_DSC2, " - Description of the First Channel, before time");

    /* Description of the Second Channel, before time,  Channel Description 10.5.2.5*/
    ELEM_OPT_TV(0x1d,GSM_A_PDU_TYPE_RR, DE_RR_CH_DSC, " - Description of the Second Channel, before time");

    /* Frequency channel sequence before time,  Frequency channel sequence 10.5.2.12*/
    ELEM_OPT_TV(0x1e,GSM_A_PDU_TYPE_RR, DE_RR_FREQ_CH_SEQ, " - Frequency channel sequence before time");

    /* Mobile Allocation, before time,  Mobile Allocation 10.5.2.21 */
    ELEM_OPT_TLV(0x21,GSM_A_PDU_TYPE_RR, DE_RR_MOB_ALL, " - Mobile Allocation, before time");

    /* Cipher Mode Setting,     Cipher Mode Setting 10.5.2.9 */
    ELEM_OPT_TV_SHORT(0x90,GSM_A_PDU_TYPE_RR, DE_RR_CIP_MODE_SET, NULL);

    /* VGCS target mode Indication,     VGCS target mode Indication 10.5.2.42a */
    ELEM_OPT_TLV(0x01,GSM_A_PDU_TYPE_RR, DE_RR_VGCS_TAR_MODE_IND, NULL);

    /* Multi-Rate configuration,        MultiRate configuration 10.5.2.21a */
    ELEM_OPT_TLV(0x03,GSM_A_PDU_TYPE_RR, DE_RR_MULTIRATE_CONF, NULL);

    /* Dynamic ARFCN Mapping,   Dynamic ARFCN Mapping 10.5.2.11b */
    ELEM_OPT_TLV(0x76,GSM_A_PDU_TYPE_RR, DE_RR_DYN_ARFCN_MAP, NULL);

    /* VGCS Ciphering Parameters,       VGCS Ciphering Parameters 10.5.2.42b */
    ELEM_OPT_TLV(0x04,GSM_A_PDU_TYPE_RR, DE_RR_VGCS_CIP_PAR, NULL);

    /* Dedicated Service Information,   Dedicated Service Information 10.5.2.59 */
    ELEM_OPT_TV(0x51,GSM_A_PDU_TYPE_RR, DE_RR_DED_SERV_INF, NULL);

    /* 6D Extended TSC Set      10.5.2.82       O TV 2 */
    ELEM_OPT_TV(0x6d, GSM_A_PDU_TYPE_RR, DE_RR_EXTENDED_TSC_SET, " - Extended TSC Set, after time");

    /* 6E Extended TSC Set      10.5.2.82       O TV 2 */
    ELEM_OPT_TV(0x6e, GSM_A_PDU_TYPE_RR, DE_RR_EXTENDED_TSC_SET, " - Extended TSC Set, before time");

    EXTRANEOUS_DATA_CHECK(len, curr_offset - offset, pinfo, &ei_gsm_a_rr_extraneous_data);

}

/*
 * 9.1.15a Inter System To UTRAN Handover Command
 */
static void
dtap_rr_inter_syst_to_utran_ho_cmd(tvbuff_t *tvb, proto_tree *tree, packet_info *pinfo _U_, uint32_t offset, unsigned len)
{
    uint32_t curr_offset;
    uint32_t consumed;
    unsigned   curr_len;

    curr_offset = offset;
    curr_len = len;

    /* UTRAN Classmark          10.5.2.51       M LV 2-? */
    ELEM_MAND_LV(GSM_A_PDU_TYPE_RR, DE_RR_HO_TO_UTRAN_CMD, NULL, ei_gsm_a_rr_missing_mandatory_element);

    EXTRANEOUS_DATA_CHECK(curr_len, 0, pinfo, &ei_gsm_a_rr_extraneous_data);
}

/* 3GPP TS 24.008 version 4.7.0 Release 4
 * [3] 9.1.16
 */
static void
dtap_rr_ho_cpte(tvbuff_t *tvb, proto_tree *tree, packet_info *pinfo _U_, uint32_t offset, unsigned len)
{
    uint32_t curr_offset;
    uint32_t consumed;
    unsigned   curr_len;

    curr_offset = offset;
    curr_len = len;

    /* RR Cause RR Cause 10.5.2.31 M V 1 */
    ELEM_MAND_V(GSM_A_PDU_TYPE_RR, DE_RR_CAUSE, NULL, ei_gsm_a_rr_missing_mandatory_element);

    /* 77 Mobile Observed Time Difference       Mobile Time Difference 10.5.2.21a */
    ELEM_OPT_TLV(0x77,GSM_A_PDU_TYPE_RR, DE_RR_MOB_TIME_DIFF, " - Mobile Observed Time Difference");

    EXTRANEOUS_DATA_CHECK(len, curr_offset - offset, pinfo, &ei_gsm_a_rr_extraneous_data);

}

/*
 * 9.1.17 Handover failure
 */
static void
dtap_rr_ho_fail(tvbuff_t *tvb, proto_tree *tree, packet_info *pinfo _U_, uint32_t offset, unsigned len)
{
    uint32_t curr_offset;
    uint32_t consumed;
    unsigned   curr_len;

    curr_offset = offset;
    curr_len = len;

    /* RR Cause RR Cause 10.5.2.31 M V 1 */
    ELEM_MAND_V(GSM_A_PDU_TYPE_RR, DE_RR_CAUSE, NULL, ei_gsm_a_rr_missing_mandatory_element);

    EXTRANEOUS_DATA_CHECK(curr_len, 0, pinfo, &ei_gsm_a_rr_extraneous_data);

}

/*
 * 9.1.18 Immediate assignment See 3GPP TS 44.018
 */
static void
dtap_rr_imm_ass(tvbuff_t *tvb, proto_tree *tree, packet_info *pinfo _U_, uint32_t offset, unsigned len)
{
    uint32_t curr_offset;
    uint32_t consumed;
    unsigned   curr_len;
    uint8_t oct;

    curr_offset = offset;
    curr_len = len;

    oct = tvb_get_uint8(tvb, curr_offset);

    /* NOTE: The order of the mandatory information elements should be chosen so that
     * information elements with 1/2 octet of content (type 1) go together in succession.
     * The first type 1 information element occupies bits 1 to 4 of octet N,
     * the second bits 5 to 8 of octet N, the third bits 1 to 4 of octet N+1 etc.
     * If the number of type 1 information elements is odd then bits 5 to 8 of the last octet
     *  occupied by these information elements should be treated as spare bits,
     * i.e. coded with a "0" in each.
     */

    /* Page Mode                        10.5.2.26       M V 1/2 */
    /* Dedicated mode or TBF            10.5.2.25b      M V 1/2 */
    ELEM_MAND_VV_SHORT(GSM_A_PDU_TYPE_RR, DE_RR_PAGE_MODE,
                       GSM_A_PDU_TYPE_RR, DE_RR_DED_MOD_OR_TBF, ei_gsm_a_rr_missing_mandatory_element);

    if((oct&0x10) == 0){
        /* Channel Description                  10.5.2.5        C V 3m */
        ELEM_MAND_V(GSM_A_PDU_TYPE_RR, DE_RR_CH_DSC, NULL, ei_gsm_a_rr_missing_mandatory_element);
    }else{
        /* Packet Channel Description   10.5.2.25a      C V 3
         * If the Dedicated mode or TBF IE indicates that the message assigns a Temporary Block Flow (TBF),
         * the mobile station shall consider this information element present in the message.
         * If the Dedicated mode or TBF IE indicates that this message is the first of two in a two-message
         * assignment of an uplink or downlink TBF, the mobile station shall ignore the contents
         * of this information element and regard it as an unnecessary IE.
         */
        if((oct&0x04) == 0){
            ELEM_MAND_V(GSM_A_PDU_TYPE_RR, DE_RR_PACKET_CH_DESC, NULL, ei_gsm_a_rr_missing_mandatory_element);
        }
    }
    /* Request Reference                        10.5.2.30       M V 3   */
    ELEM_MAND_V(GSM_A_PDU_TYPE_RR, DE_RR_REQ_REF, NULL, ei_gsm_a_rr_missing_mandatory_element);

    /* Timing Advance                           10.5.2.40       M V 1   */
    ELEM_MAND_V(GSM_A_PDU_TYPE_RR, DE_RR_TIMING_ADV, NULL, ei_gsm_a_rr_missing_mandatory_element);
    /* Mobile Allocation                        10.5.2.21       M LV 1-9 */
    ELEM_MAND_LV(GSM_A_PDU_TYPE_RR, DE_RR_MOB_ALL, NULL, ei_gsm_a_rr_missing_mandatory_element);
    /* 7C Starting Time                         10.5.2.38       O TV 3  */
    ELEM_OPT_TV(0x7C,GSM_A_PDU_TYPE_RR, DE_RR_STARTING_TIME, NULL);
    /* IA Rest Octets                           10.5.2.16       M V 0-11 */
    if(tvb_reported_length_remaining(tvb,curr_offset) > 0)
        ELEM_MAND_V(GSM_A_PDU_TYPE_RR, DE_RR_IA_REST_OCT, NULL, ei_gsm_a_rr_missing_mandatory_element);

    /* 6D Extended TSC Set                      10.5.2.82       O TV 2 */
    ELEM_OPT_TV(0x6d, GSM_A_PDU_TYPE_RR, DE_RR_EXTENDED_TSC_SET, NULL);
}

/*
 * 9.1.19 Immediate assignment extended
 */
static void
dtap_rr_imm_ass_ext(tvbuff_t *tvb, proto_tree *tree, packet_info *pinfo _U_, uint32_t offset, unsigned len)
{
    uint32_t curr_offset;
    uint32_t consumed;
    unsigned   curr_len;

    curr_offset = offset;
    curr_len = len;

    /* Page Mode                                                10.5.2.26       M V 1/2 */
    /* Feature Indicator                                        10.5.2.76       M V 1/2 */
    ELEM_MAND_VV_SHORT(GSM_A_PDU_TYPE_RR, DE_RR_PAGE_MODE,
                       GSM_A_PDU_TYPE_RR, DE_RR_FEATURE_INDICATOR, ei_gsm_a_rr_missing_mandatory_element);
    /* Channel Description 1    Channel Description             10.5.2.5        M V 3 */
    ELEM_MAND_V(GSM_A_PDU_TYPE_RR, DE_RR_CH_DSC, " - Channel Description 1", ei_gsm_a_rr_missing_mandatory_element);
    /* Request Reference 1      Request Reference               10.5.2.30       M V 3   */
    ELEM_MAND_V(GSM_A_PDU_TYPE_RR, DE_RR_REQ_REF, " - Request Reference 1", ei_gsm_a_rr_missing_mandatory_element);
    /* Timing Advance 1 Timing Advance                          10.5.2.40       M V 1   */
    ELEM_MAND_V(GSM_A_PDU_TYPE_RR, DE_RR_TIMING_ADV, " - Timing Advance 1", ei_gsm_a_rr_missing_mandatory_element);
    /* Channel Description 2    Channel Description             10.5.2.5        M V 3 */
    ELEM_MAND_V(GSM_A_PDU_TYPE_RR, DE_RR_CH_DSC, " - Channel Description 2", ei_gsm_a_rr_missing_mandatory_element);
    /* Request Reference 2      Request Reference               10.5.2.30       M V 3   */
    ELEM_MAND_V(GSM_A_PDU_TYPE_RR, DE_RR_REQ_REF, " - Request Reference 2", ei_gsm_a_rr_missing_mandatory_element);
    /* Timing Advance 2 Timing Advance                          10.5.2.40       M V 1   */
    ELEM_MAND_V(GSM_A_PDU_TYPE_RR, DE_RR_TIMING_ADV, " - Timing Advance 2", ei_gsm_a_rr_missing_mandatory_element);
    /* Mobile Allocation                                        10.5.2.21       M LV 1-9 */
    ELEM_MAND_LV(GSM_A_PDU_TYPE_RR, DE_RR_MOB_ALL, NULL, ei_gsm_a_rr_missing_mandatory_element);
    /* 7C Starting Time                                         10.5.2.38       O TV 3  */
    ELEM_OPT_TV(0x7C,GSM_A_PDU_TYPE_RR, DE_RR_STARTING_TIME, NULL);
    /* IAX Rest Octets                                          10.5.2.18       M V 0-4 */
    if(tvb_reported_length_remaining(tvb,curr_offset) > 0)
        ELEM_MAND_V(GSM_A_PDU_TYPE_RR, DE_RR_IAX_REST_OCT, NULL, ei_gsm_a_rr_missing_mandatory_element);

}

/*
 * 9.1.20 Immediate assignment reject
 */
static void
dtap_rr_imm_ass_rej(tvbuff_t *tvb, proto_tree *tree, packet_info *pinfo _U_, uint32_t offset, unsigned len)
{
    uint32_t curr_offset;
    uint32_t consumed;
    unsigned   curr_len;

    curr_offset = offset;
    curr_len = len;

    /* Page Mode                                        10.5.2.26       M V 1/2 */
    /* Feature Indicator                                        10.5.2.76       M V 1/2 */
    ELEM_MAND_VV_SHORT(GSM_A_PDU_TYPE_RR, DE_RR_PAGE_MODE,
                       GSM_A_PDU_TYPE_RR, DE_RR_FEATURE_INDICATOR, ei_gsm_a_rr_missing_mandatory_element);
    /* Request Reference 1      Request Reference               10.5.2.30       M V 3   */
    ELEM_MAND_V(GSM_A_PDU_TYPE_RR, DE_RR_REQ_REF, " - Request Reference 1", ei_gsm_a_rr_missing_mandatory_element);
    /* Wait Indication 1        Wait Indication                 10.5.2.43       M V 1   */
    ELEM_MAND_V(GSM_A_PDU_TYPE_RR, DE_RR_WAIT_IND, " - Wait Indication 1", ei_gsm_a_rr_missing_mandatory_element);
    /* Request Reference 2      Request Reference               10.5.2.30       M V 3   */
    ELEM_MAND_V(GSM_A_PDU_TYPE_RR, DE_RR_REQ_REF, " - Request Reference 2", ei_gsm_a_rr_missing_mandatory_element);
    /* Wait Indication 2        Wait Indication                 10.5.2.43       M V 1   */
    ELEM_MAND_V(GSM_A_PDU_TYPE_RR, DE_RR_WAIT_IND, " - Wait Indication 2", ei_gsm_a_rr_missing_mandatory_element);
    /* Request Reference 3      Request Reference               10.5.2.30       M V 3   */
    ELEM_MAND_V(GSM_A_PDU_TYPE_RR, DE_RR_REQ_REF, " - Request Reference 3", ei_gsm_a_rr_missing_mandatory_element);
    /* Wait Indication 3        Wait Indication                 10.5.2.43       M V 1   */
    ELEM_MAND_V(GSM_A_PDU_TYPE_RR, DE_RR_WAIT_IND, " - Wait Indication 3", ei_gsm_a_rr_missing_mandatory_element);
    /* Request Reference 4      Request Reference               10.5.2.30       M V 3   */
    ELEM_MAND_V(GSM_A_PDU_TYPE_RR, DE_RR_REQ_REF, " - Request Reference 4", ei_gsm_a_rr_missing_mandatory_element);
    /* Wait Indication 4        Wait Indication                 10.5.2.43       M V 1   */
    ELEM_MAND_V(GSM_A_PDU_TYPE_RR, DE_RR_WAIT_IND, " - Wait Indication 4", ei_gsm_a_rr_missing_mandatory_element);
    /* IAR Rest Octets                          10.5.2.19       M V 3 */
    if(tvb_reported_length_remaining(tvb,curr_offset) > 0)
        ELEM_MAND_V(GSM_A_PDU_TYPE_RR, DE_RR_IAR_REST_OCT, NULL, ei_gsm_a_rr_missing_mandatory_element);

}

/*
 * 9.1.21 Measurement report
 */
static void
dtap_rr_meas_rep(tvbuff_t *tvb, proto_tree *tree, packet_info *pinfo _U_, uint32_t offset, unsigned len)
{
    uint32_t curr_offset;
    uint32_t consumed;
    unsigned   curr_len;

    curr_offset = offset;
    curr_len = len;

    /* Measurement Results 10.5.2.20 M V 16 */
    ELEM_MAND_V(GSM_A_PDU_TYPE_RR, DE_RR_MEAS_RES, NULL, ei_gsm_a_rr_missing_mandatory_element);
}

/*
 * 9.1.21f Packet Assignment
 */
static void
dtap_rr_pkt_assign(tvbuff_t *tvb, proto_tree *tree, packet_info *pinfo _U_, uint32_t offset, unsigned len)
{
    uint32_t curr_offset;
    uint32_t consumed;
    unsigned   curr_len;

    curr_offset = offset;
    curr_len = len;

    /* GPRS broadcast information 10.5.2.14d M LV 7-n */
    ELEM_MAND_LV(GSM_A_PDU_TYPE_RR, DE_RR_GPRS_BROADCAST_INFORMATION, NULL, ei_gsm_a_rr_missing_mandatory_element);

    /* 0x22 RR Packet Uplink Assignment 10.5.2.25c O TLV 3-n */
    ELEM_OPT_TLV(0x22, GSM_A_PDU_TYPE_RR, DE_RR_PKT_UL_ASS, NULL);

    /* 0x23 RR Packet Downlink Assignment 10.5.2.25d O TLV 3-n */
    ELEM_OPT_TLV(0x23, GSM_A_PDU_TYPE_RR, DE_RR_PKT_DL_ASS, NULL);

    /* 0x12 Frequency List 10.5.2.13 C TLV 4-132 */
    ELEM_OPT_TLV(0x12, GSM_A_PDU_TYPE_RR, DE_RR_FREQ_LIST, " - Frequency List C2");

    /* 0x13 Mobile Allocation 10.5.2.21 C TLV 3-10 */
    ELEM_OPT_TLV(0x13, GSM_A_PDU_TYPE_RR, DE_RR_MOB_ALL, " - Mobile Allocation C2");

    /* 0x14 Channel Description 3 10.5.2.5c O TV 3 */
    ELEM_OPT_TV(0x14, GSM_A_PDU_TYPE_RR, DE_RR_CH_DSC3, " - Channel Description C2");

    /* 0x24 RR Packet Downlink Assignment Type 2 10.5.2.25e C TLV 3-n */
    ELEM_OPT_TLV(0x24, GSM_A_PDU_TYPE_RR, DE_RR_PKT_DL_ASS_TYPE2, NULL);

    /* 0x6D Extended TSC Set 10.5.2.82 C TV 2 */
    ELEM_OPT_TV(0x6d, GSM_A_PDU_TYPE_RR, DE_RR_EXTENDED_TSC_SET, NULL);

    EXTRANEOUS_DATA_CHECK(len, curr_offset - offset, pinfo, &ei_gsm_a_rr_extraneous_data);
}

/*
 * 9.1.21g Packet Notification
 */
static void
dtap_rr_pkt_notif(tvbuff_t *tvb, proto_tree *tree, packet_info *pinfo _U_, uint32_t offset, unsigned len)
{
    uint32_t curr_offset;
    uint32_t consumed;
    unsigned   curr_len;

    curr_offset = offset;
    curr_len = len;

    /* 0x10 P-TMSI 10.5.2.42 C TV 5 */
    ELEM_OPT_TV(0x10, GSM_A_PDU_TYPE_RR, DE_RR_TMSI_PTMSI, " - Packet TMSI");

    /* 0x11 Mobile Identity 10.5.1.4 C TLV 3-11 */
    ELEM_OPT_TLV(0x11, GSM_A_PDU_TYPE_COMMON, DE_MID, NULL);

    EXTRANEOUS_DATA_CHECK(len, curr_offset - offset, pinfo, &ei_gsm_a_rr_extraneous_data);
}

/*
 * 9.1.22 Paging Request Type 1
 */
static void
dtap_rr_paging_req_type_1(tvbuff_t *tvb, proto_tree *tree, packet_info *pinfo _U_, uint32_t offset, unsigned len)
{
    uint32_t curr_offset;
    uint32_t consumed;
    unsigned   curr_len;
    uint8_t l2plen = tvb_get_uint8(tvb, 0) >> 2;

    curr_offset = offset;
    curr_len = len;

    /* RR Page Mode 10.5.2.26 M V 1/2 */
    /* RR Channel Needed 10.5.2.8 M V 1/2 */
    ELEM_MAND_VV_SHORT(GSM_A_PDU_TYPE_RR, DE_RR_PAGE_MODE,
                       GSM_A_PDU_TYPE_RR, DE_RR_CHNL_NEEDED, ei_gsm_a_rr_missing_mandatory_element);

    /* RR Mobile Identity 10.5.1.4 M LV 2-9 */
    ELEM_MAND_LV(GSM_A_PDU_TYPE_COMMON, DE_MID, " - Mobile Identity 1", ei_gsm_a_rr_missing_mandatory_element);

    /* RR Mobile Identity 10.5.1.4 O TLV 3-10 */
    ELEM_OPT_TLV(0x17, GSM_A_PDU_TYPE_COMMON, DE_MID, " - Mobile Identity 2");

    /* 9.1.22.4 P1 Rest Octets: The sum of the length of this IE and the L2 Pseudo Length of the message equals 22. */
    if (l2plen < 22) {
        /* RR P1 Rest Octets 10.5.2.23 M V 0-17 */
        ELEM_MAND_V(GSM_A_PDU_TYPE_RR, DE_RR_P1_REST_OCT, NULL, ei_gsm_a_rr_missing_mandatory_element);
    }

}

/*
 * 9.1.23 Paging Request Type 2
 */
static void
dtap_rr_paging_req_type_2(tvbuff_t *tvb, proto_tree *tree, packet_info *pinfo _U_, uint32_t offset, unsigned len)
{
    uint32_t curr_offset;
    uint32_t consumed;
    unsigned   curr_len;

    curr_offset = offset;
    curr_len = len;

    /* RR Page Mode 10.5.2.26 M V 1/2 */
    /* RR Channel Needed 10.5.2.8 M V 1/2 */
    ELEM_MAND_VV_SHORT(GSM_A_PDU_TYPE_RR, DE_RR_PAGE_MODE,
                       GSM_A_PDU_TYPE_RR, DE_RR_CHNL_NEEDED, ei_gsm_a_rr_missing_mandatory_element);

    /* RR TMSI/P-TMSI 10.5.2.42 M V 4 */
    ELEM_MAND_V(GSM_A_PDU_TYPE_RR, DE_RR_TMSI_PTMSI, " - Mobile Identity 1", ei_gsm_a_rr_missing_mandatory_element);

    /* RR TMSI/P-TMSI 10.5.2.42 M V 4 */
    ELEM_MAND_V(GSM_A_PDU_TYPE_RR, DE_RR_TMSI_PTMSI, " - Mobile Identity 2", ei_gsm_a_rr_missing_mandatory_element);

    /* RR Mobile Identity 10.5.1.4 O TLV 3-10 */
    ELEM_OPT_TLV(0x17, GSM_A_PDU_TYPE_COMMON, DE_MID, " - Mobile Identity 3");

    /* RR P2 Rest Octets 10.5.2.24 M V 1-11 */
    ELEM_MAND_V(GSM_A_PDU_TYPE_RR, DE_RR_P2_REST_OCT, NULL, ei_gsm_a_rr_missing_mandatory_element);

}

/*
 * 9.1.24 Paging Request Type 3
 */
static void
dtap_rr_paging_req_type_3(tvbuff_t *tvb, proto_tree *tree, packet_info *pinfo _U_, uint32_t offset, unsigned len)
{
    uint32_t curr_offset;
    uint32_t consumed;
    unsigned   curr_len;

    curr_offset = offset;
    curr_len = len;

    /* RR Page Mode 10.5.2.26 M V 1/2 */
    /* RR Channel Needed 10.5.2.8 M V 1/2 */
    ELEM_MAND_VV_SHORT(GSM_A_PDU_TYPE_RR, DE_RR_PAGE_MODE,
                       GSM_A_PDU_TYPE_RR, DE_RR_CHNL_NEEDED, ei_gsm_a_rr_missing_mandatory_element);

    /* RR TMSI/P-TMSI 10.5.2.42 M V 4 */
    ELEM_MAND_V(GSM_A_PDU_TYPE_RR, DE_RR_TMSI_PTMSI, " - Mobile Identity 1", ei_gsm_a_rr_missing_mandatory_element);

    /* RR TMSI/P-TMSI 10.5.2.42 M V 4 */
    ELEM_MAND_V(GSM_A_PDU_TYPE_RR, DE_RR_TMSI_PTMSI, " - Mobile Identity 2", ei_gsm_a_rr_missing_mandatory_element);

    /* RR TMSI/P-TMSI 10.5.2.42 M V 4 */
    ELEM_MAND_V(GSM_A_PDU_TYPE_RR, DE_RR_TMSI_PTMSI, " - Mobile Identity 3", ei_gsm_a_rr_missing_mandatory_element);

    /* RR TMSI/P-TMSI 10.5.2.42 M V 4 */
    ELEM_MAND_V(GSM_A_PDU_TYPE_RR, DE_RR_TMSI_PTMSI, " - Mobile Identity 4", ei_gsm_a_rr_missing_mandatory_element);

    /* RR P3 Rest Octets 10.5.2.25 M V 3 */
    ELEM_MAND_V(GSM_A_PDU_TYPE_RR, DE_RR_P3_REST_OCT, NULL, ei_gsm_a_rr_missing_mandatory_element);

}

/*
 * [4] 9.1.25 Paging response
 */
static void
dtap_rr_paging_resp(tvbuff_t *tvb, proto_tree *tree, packet_info *pinfo _U_, uint32_t offset, unsigned len)
{
    uint32_t    curr_offset;
    uint32_t    consumed;
    unsigned    curr_len;
    uint8_t     oct;
    proto_tree *subtree;

    curr_offset = offset;
    curr_len = len;

    /*
     * special dissection for Cipher Key Sequence Number
     */
    oct = tvb_get_uint8(tvb, curr_offset);

    proto_tree_add_bits_item(tree, hf_gsm_a_rr_spare, tvb, (curr_offset<<3)+4, 4, ENC_NA);

    subtree = proto_tree_add_subtree(tree,
                            tvb, curr_offset, 1, ett_gsm_common_elem[DE_CIPH_KEY_SEQ_NUM], NULL,
                            val_to_str_ext_const(DE_CIPH_KEY_SEQ_NUM, &gsm_common_elem_strings_ext, ""));

    proto_tree_add_bits_item(subtree, hf_gsm_a_rr_spare, tvb, (curr_offset<<3)+3, 1, ENC_NA);

    switch (oct & 0x07)
    {
    case 0x07:
        proto_tree_add_uint_format_value(subtree, hf_gsm_a_rr_ciphering_key_seq_num,
                            tvb, curr_offset, 1, oct, "No key is available");
        break;

    default:
        proto_tree_add_uint(subtree, hf_gsm_a_rr_ciphering_key_seq_num, tvb, curr_offset, 1, oct);
        break;
    }

    curr_offset++;
    curr_len--;

    ELEM_MAND_LV(GSM_A_PDU_TYPE_COMMON, DE_MS_CM_2, NULL, ei_gsm_a_rr_missing_mandatory_element);

    ELEM_MAND_LV(GSM_A_PDU_TYPE_COMMON, DE_MID, NULL, ei_gsm_a_rr_missing_mandatory_element);

    ELEM_OPT_TV_SHORT(0xC0, GSM_A_PDU_TYPE_DTAP, DE_ADD_UPD_PARAMS, NULL);

    EXTRANEOUS_DATA_CHECK(curr_len, 0, pinfo, &ei_gsm_a_rr_extraneous_data);
}

/*
 * [4] 9.1.26 Partial Release
 */
static void
dtap_rr_partial_rel(tvbuff_t *tvb, proto_tree *tree, packet_info *pinfo _U_, uint32_t offset, unsigned len)
{
    uint32_t curr_offset;
    uint32_t consumed;
    unsigned   curr_len;

    curr_offset = offset;
    curr_len = len;

    /* Channel Description  10.5.2.5  M V 3 */
    ELEM_MAND_V(GSM_A_PDU_TYPE_RR, DE_RR_CH_DSC, NULL, ei_gsm_a_rr_missing_mandatory_element);

    EXTRANEOUS_DATA_CHECK(curr_len, 0, pinfo, &ei_gsm_a_rr_extraneous_data);
}

/*
 * [4] 9.1.27 Partial Release Complete
 */
/* empty message */

/*
 * [4] 9.1.28 Physical Information
 */
static void
dtap_rr_phy_info(tvbuff_t *tvb, proto_tree *tree, packet_info *pinfo _U_, uint32_t offset, unsigned len)
{
    uint32_t curr_offset;
    uint32_t consumed;
    unsigned   curr_len;

    curr_offset = offset;
    curr_len = len;

    ELEM_MAND_V(GSM_A_PDU_TYPE_RR, DE_RR_TIMING_ADV, NULL, ei_gsm_a_rr_missing_mandatory_element);

    EXTRANEOUS_DATA_CHECK(curr_len, 0, pinfo, &ei_gsm_a_rr_extraneous_data);
}

/*
 * [4] 9.1.29
 */
static void
dtap_rr_rr_status(tvbuff_t *tvb, proto_tree *tree, packet_info *pinfo _U_, uint32_t offset, unsigned len)
{
    uint32_t curr_offset;
    uint32_t consumed;
    unsigned   curr_len;

    curr_offset = offset;
    curr_len = len;

    ELEM_MAND_V(GSM_A_PDU_TYPE_RR, DE_RR_CAUSE, NULL, ei_gsm_a_rr_missing_mandatory_element);

    EXTRANEOUS_DATA_CHECK(curr_len, 0, pinfo, &ei_gsm_a_rr_extraneous_data);
}

/*
 * [4] 9.1.31
 */
static void
dtap_rr_sys_info_1(tvbuff_t *tvb, proto_tree *tree, packet_info *pinfo _U_, uint32_t offset, unsigned len)
{
    uint32_t curr_offset;
    uint32_t consumed;
    unsigned   curr_len;

    curr_offset = offset;
    curr_len = len;

    ELEM_MAND_V(GSM_A_PDU_TYPE_RR, DE_RR_CELL_CH_DSC, NULL, ei_gsm_a_rr_missing_mandatory_element);

    ELEM_MAND_V(GSM_A_PDU_TYPE_RR, DE_RR_RACH_CTRL_PARAM, NULL, ei_gsm_a_rr_missing_mandatory_element);

    ELEM_MAND_V(GSM_A_PDU_TYPE_RR, DE_RR_SI1_REST_OCT, NULL, ei_gsm_a_rr_missing_mandatory_element);
}

/*
 * [4] 9.1.32
 */
static void
dtap_rr_sys_info_2(tvbuff_t *tvb, proto_tree *tree, packet_info *pinfo _U_, uint32_t offset, unsigned len)
{
    uint32_t curr_offset;
    uint32_t consumed;
    unsigned   curr_len;

    curr_offset = offset;
    curr_len = len;

    ELEM_MAND_V(GSM_A_PDU_TYPE_RR, DE_RR_NEIGH_CELL_DESC, " - BCCH Frequency List", ei_gsm_a_rr_missing_mandatory_element);

    ELEM_MAND_V(GSM_A_PDU_TYPE_RR, DE_RR_NCC_PERM, NULL, ei_gsm_a_rr_missing_mandatory_element);

    ELEM_MAND_V(GSM_A_PDU_TYPE_RR, DE_RR_RACH_CTRL_PARAM, NULL, ei_gsm_a_rr_missing_mandatory_element);
}

/*
 * [4] 9.1.33
 */
static void
dtap_rr_sys_info_2bis(tvbuff_t *tvb, proto_tree *tree, packet_info *pinfo _U_, uint32_t offset, unsigned len)
{
    uint32_t curr_offset;
    uint32_t consumed;
    unsigned   curr_len;

    curr_offset = offset;
    curr_len = len;

    ELEM_MAND_V(GSM_A_PDU_TYPE_RR, DE_RR_NEIGH_CELL_DESC, " - Extended BCCH Frequency List", ei_gsm_a_rr_missing_mandatory_element);

    ELEM_MAND_V(GSM_A_PDU_TYPE_RR, DE_RR_RACH_CTRL_PARAM, NULL, ei_gsm_a_rr_missing_mandatory_element);
}

/*
 * [4] 9.1.34
 */
static void
dtap_rr_sys_info_2ter(tvbuff_t *tvb, proto_tree *tree, packet_info *pinfo _U_, uint32_t offset, unsigned len)
{
    uint32_t curr_offset;
    uint32_t consumed;
    unsigned   curr_len;

    curr_offset = offset;
    curr_len = len;

    ELEM_MAND_V(GSM_A_PDU_TYPE_RR, DE_RR_NEIGH_CELL_DESC2, " - Extended BCCH Frequency List", ei_gsm_a_rr_missing_mandatory_element);

    ELEM_MAND_V(GSM_A_PDU_TYPE_RR, DE_RR_SI2TER_REST_OCT, NULL, ei_gsm_a_rr_missing_mandatory_element);
}

/*
 * [4] 9.1.34a
 */
static void
dtap_rr_sys_info_2quater(tvbuff_t *tvb, proto_tree *tree, packet_info *pinfo _U_, uint32_t offset, unsigned len)
{
    uint32_t curr_offset;
    uint32_t consumed;
    unsigned   curr_len;

    curr_offset = offset;
    curr_len = len;

    ELEM_MAND_V(GSM_A_PDU_TYPE_RR, DE_RR_SI2QUATER_REST_OCT, NULL, ei_gsm_a_rr_missing_mandatory_element);
}

/*
 * [4] 9.1.35
 */
static void
dtap_rr_sys_info_3(tvbuff_t *tvb, proto_tree *tree, packet_info *pinfo _U_, uint32_t offset, unsigned len)
{
    uint32_t curr_offset;
    uint32_t consumed;
    unsigned   curr_len;

    curr_offset = offset;
    curr_len = len;

    ELEM_MAND_V(GSM_A_PDU_TYPE_COMMON, DE_CELL_ID, NULL, ei_gsm_a_rr_missing_mandatory_element);

    ELEM_MAND_V(GSM_A_PDU_TYPE_COMMON, DE_LAI, NULL, ei_gsm_a_rr_missing_mandatory_element);

    ELEM_MAND_V(GSM_A_PDU_TYPE_RR, DE_RR_CTRL_CH_DESC, NULL, ei_gsm_a_rr_missing_mandatory_element);

    ELEM_MAND_V(GSM_A_PDU_TYPE_RR, DE_RR_CELL_OPT_BCCH, NULL, ei_gsm_a_rr_missing_mandatory_element);

    ELEM_MAND_V(GSM_A_PDU_TYPE_RR, DE_RR_CELL_SEL_PARAM, NULL, ei_gsm_a_rr_missing_mandatory_element);

    ELEM_MAND_V(GSM_A_PDU_TYPE_RR, DE_RR_RACH_CTRL_PARAM, NULL, ei_gsm_a_rr_missing_mandatory_element);

    ELEM_MAND_V(GSM_A_PDU_TYPE_RR, DE_RR_SI3_REST_OCT, NULL, ei_gsm_a_rr_missing_mandatory_element);
}

/*
 * [4] 9.1.36
 */
static void
dtap_rr_sys_info_4(tvbuff_t *tvb, proto_tree *tree, packet_info *pinfo _U_, uint32_t offset, unsigned len)
{
    uint32_t curr_offset;
    uint32_t consumed;
    unsigned   curr_len;

    curr_offset = offset;
    curr_len = len;

    ELEM_MAND_V(GSM_A_PDU_TYPE_COMMON, DE_LAI, NULL, ei_gsm_a_rr_missing_mandatory_element);

    ELEM_MAND_V(GSM_A_PDU_TYPE_RR, DE_RR_CELL_SEL_PARAM, NULL, ei_gsm_a_rr_missing_mandatory_element);

    ELEM_MAND_V(GSM_A_PDU_TYPE_RR, DE_RR_RACH_CTRL_PARAM, NULL, ei_gsm_a_rr_missing_mandatory_element);

    ELEM_OPT_TV(0x64, GSM_A_PDU_TYPE_RR, DE_RR_CH_DSC, " - CBCH");

    ELEM_OPT_TLV(0x72, GSM_A_PDU_TYPE_RR, DE_RR_MOB_ALL, " - CBCH");

    ELEM_MAND_V(GSM_A_PDU_TYPE_RR, DE_RR_SI4_REST_OCT, NULL, ei_gsm_a_rr_missing_mandatory_element);
}

/*
 * [4] 9.1.37
 */
static void
dtap_rr_sys_info_5(tvbuff_t *tvb, proto_tree *tree, packet_info *pinfo _U_, uint32_t offset, unsigned len)
{
    uint32_t curr_offset;
    uint32_t consumed;
    unsigned   curr_len;

    curr_offset = offset;
    curr_len = len;

    ELEM_MAND_V(GSM_A_PDU_TYPE_RR, DE_RR_NEIGH_CELL_DESC, " - BCCH Frequency List", ei_gsm_a_rr_missing_mandatory_element);
}

/*
 * [4] 9.1.38
 */
static void
dtap_rr_sys_info_5bis(tvbuff_t *tvb, proto_tree *tree, packet_info *pinfo _U_, uint32_t offset, unsigned len)
{
    uint32_t curr_offset;
    uint32_t consumed;
    unsigned   curr_len;

    curr_offset = offset;
    curr_len = len;

    ELEM_MAND_V(GSM_A_PDU_TYPE_RR, DE_RR_NEIGH_CELL_DESC, " - Extended BCCH Frequency List", ei_gsm_a_rr_missing_mandatory_element);
}

/*
 * [4] 9.1.39
 */
static void
dtap_rr_sys_info_5ter(tvbuff_t *tvb, proto_tree *tree, packet_info *pinfo _U_, uint32_t offset, unsigned len)
{
    uint32_t curr_offset;
    uint32_t consumed;
    unsigned   curr_len;

    curr_offset = offset;
    curr_len = len;

    ELEM_MAND_V(GSM_A_PDU_TYPE_RR, DE_RR_NEIGH_CELL_DESC2, " - Extended BCCH Frequency List", ei_gsm_a_rr_missing_mandatory_element);
}

/*
 * [4] 9.1.40
 */
static void
dtap_rr_sys_info_6(tvbuff_t *tvb, proto_tree *tree, packet_info *pinfo _U_, uint32_t offset, unsigned len)
{
    uint32_t curr_offset;
    uint32_t consumed;
    unsigned   curr_len;

    curr_offset = offset;
    curr_len = len;

    ELEM_MAND_V(GSM_A_PDU_TYPE_COMMON, DE_CELL_ID, NULL, ei_gsm_a_rr_missing_mandatory_element);

    ELEM_MAND_V(GSM_A_PDU_TYPE_COMMON, DE_LAI, NULL, ei_gsm_a_rr_missing_mandatory_element);

    ELEM_MAND_V(GSM_A_PDU_TYPE_RR, DE_RR_CELL_OPT_SACCH, NULL, ei_gsm_a_rr_missing_mandatory_element);

    ELEM_MAND_V(GSM_A_PDU_TYPE_RR, DE_RR_NCC_PERM, NULL, ei_gsm_a_rr_missing_mandatory_element);

    ELEM_MAND_V(GSM_A_PDU_TYPE_RR, DE_RR_SI6_REST_OCT, NULL, ei_gsm_a_rr_missing_mandatory_element);
}

/*
 * [4] 9.1.43a
 */
static void
dtap_rr_sys_info_13(tvbuff_t *tvb, proto_tree *tree, packet_info *pinfo _U_, uint32_t offset, unsigned len)
{
    uint32_t curr_offset;
    uint32_t consumed;
    unsigned   curr_len;

    curr_offset = offset;
    curr_len = len;

    ELEM_MAND_V(GSM_A_PDU_TYPE_RR, DE_RR_SI13_REST_OCT, NULL, ei_gsm_a_rr_missing_mandatory_element);
}

/*
 * [4] 9.1.43b
 */
static void
dtap_rr_sys_info_21(tvbuff_t *tvb, proto_tree *tree, packet_info *pinfo _U_, uint32_t offset, unsigned len)
{
    uint32_t curr_offset;
    uint32_t consumed;
    unsigned   curr_len;

    curr_offset = offset;
    curr_len = len;

    ELEM_MAND_V(GSM_A_PDU_TYPE_RR, DE_RR_SI21_REST_OCT, NULL, ei_gsm_a_rr_missing_mandatory_element);
}

/*
 * [4] 9.1.44 Talker indication
 */
static void
dtap_rr_talker_indication(tvbuff_t *tvb, proto_tree *tree, packet_info *pinfo _U_, uint32_t offset, unsigned len)
{
    uint32_t curr_offset;
    uint32_t consumed;
    unsigned   curr_len;

    curr_offset = offset;
    curr_len = len;

    /* Mobile Station Classmark 2 10.5.1.6 M LV */
    ELEM_MAND_LV(GSM_A_PDU_TYPE_COMMON, DE_MS_CM_2, NULL, ei_gsm_a_rr_missing_mandatory_element);

    /* Mobile identity 10.5.1.4 M LV */
    ELEM_MAND_LV(GSM_A_PDU_TYPE_COMMON, DE_MID, NULL, ei_gsm_a_rr_missing_mandatory_element);

    /* Ciphering Key Sequence Number 10.5.1.2 O TV 1 */
    ELEM_OPT_TV_SHORT(0xD0,GSM_A_PDU_TYPE_COMMON, DE_CIPH_KEY_SEQ_NUM,NULL);
}

/*
 * [4] 9.1.48 Uplink release
 */
static void
dtap_rr_upl_rel(tvbuff_t *tvb, proto_tree *tree, packet_info *pinfo _U_, uint32_t offset, unsigned len)
{
    uint32_t curr_offset;
    uint32_t consumed;
    unsigned   curr_len;

    curr_offset = offset;
    curr_len = len;

    /* RR Cause 10.5.2.31 M V 1 */
    ELEM_MAND_V(GSM_A_PDU_TYPE_RR, DE_RR_CAUSE, NULL, ei_gsm_a_rr_missing_mandatory_element);
}

/*
 * [4] 9.1.49 VGCS uplink grant
 */
static void
dtap_rr_vgcs_upl_grant(tvbuff_t *tvb, proto_tree *tree, packet_info *pinfo _U_, uint32_t offset, unsigned len)
{
    uint32_t curr_offset;
    uint32_t consumed;
    unsigned   curr_len;

    curr_offset = offset;
    curr_len = len;

    /* Request reference 10.5.2.30 M V 3 */
    ELEM_MAND_V(GSM_A_PDU_TYPE_RR, DE_RR_REQ_REF, NULL, ei_gsm_a_rr_missing_mandatory_element);

    /* Timing advance 10.5.2.40 M V 1 */
    ELEM_MAND_V(GSM_A_PDU_TYPE_RR, DE_RR_TIMING_ADV, NULL, ei_gsm_a_rr_missing_mandatory_element);
}

/*
 * [4] 9.1.51 Extended Measurement Order
 */
static void
dtap_rr_ext_meas_order(tvbuff_t *tvb, proto_tree *tree, packet_info *pinfo _U_, uint32_t offset, unsigned len)
{
    uint32_t curr_offset;
    uint32_t consumed;
    unsigned   curr_len;

    curr_offset = offset;
    curr_len = len;

    /* Extended Measurement Frequency List  10.5.2.46  M V 16 */
    ELEM_MAND_V(GSM_A_PDU_TYPE_RR, DE_RR_EXT_MEAS_FREQ_LIST, NULL, ei_gsm_a_rr_missing_mandatory_element);
}

/*
 * [4] 9.1.52 Extended Measurement Report
 */
static void
dtap_rr_ext_meas_report(tvbuff_t *tvb, proto_tree *tree, packet_info *pinfo _U_, uint32_t offset, unsigned len)
{
    uint32_t curr_offset;
    uint32_t consumed;
    unsigned   curr_len;

    curr_offset = offset;
    curr_len = len;

    /* Extended Measurement Result  10.5.2.45  M V 16 */
    ELEM_MAND_V(GSM_A_PDU_TYPE_RR, DE_RR_EXT_MEAS_RESULT, NULL, ei_gsm_a_rr_missing_mandatory_element);
}

/*
 * 9.1.53 Application Information
 */
static void
dtap_rr_app_inf(tvbuff_t *tvb, proto_tree *tree, packet_info *pinfo _U_, uint32_t offset, unsigned len)
{
    uint32_t curr_offset;
    uint32_t consumed;
    unsigned   curr_len;

    curr_offset = offset;
    curr_len    = len;

    /*
     * APDU ID IE (10.5.2.48) M V 1/2
     * APDU Flags (10.5.2.49) M V 1/2
     */
    ELEM_MAND_VV_SHORT(GSM_A_PDU_TYPE_RR, DE_RR_APDU_ID,
                       GSM_A_PDU_TYPE_RR, DE_RR_APDU_FLAGS,
                       ei_gsm_a_rr_missing_mandatory_element);

    ELEM_MAND_LV(GSM_A_PDU_TYPE_RR, DE_RR_APDU_DATA, NULL, ei_gsm_a_rr_missing_mandatory_element);
}

/*
 * [4] 9.1.54 Measurement Information
 */
static const value_string gsm_a_rr_3g_wait_vals[] = {
    { 0, "1 instance that contain 3G Neighbour Cell Description shall be received"},
    { 1, "2 instances that contain 3G Neighbour Cell Description shall be received"},
    { 2, "3 instances that contain 3G Neighbour Cell Description shall be received"},
    { 3, "4 instances that contain 3G Neighbour Cell Description shall be received"},
    { 4, "5 instances that contain 3G Neighbour Cell Description shall be received"},
    { 5, "6 instances that contain 3G Neighbour Cell Description shall be received"},
    { 6, "7 instances that contain 3G Neighbour Cell Description shall be received"},
    { 7, "8 instances that contain 3G Neighbour Cell Description shall be received"},
    { 0, NULL }
};


static void
sacch_rr_meas_info(tvbuff_t *tvb, proto_tree *tree, packet_info *pinfo _U_, uint32_t offset, unsigned len _U_)
{
    proto_tree *subtree = NULL, *subtree2 = NULL;
    proto_item *item, *item2;
    uint32_t    curr_offset;
    int         bit_offset, bit_offset_sav, bit_offset_sav2;
    uint8_t     value, idx;
    uint8_t     tvb_len = tvb_reported_length(tvb);
    uint16_t    bit_len = tvb_len << 3;

    curr_offset = offset;
    bit_offset = curr_offset << 3;

    proto_tree_add_bits_item(tree, hf_gsm_a_rr_ba_ind, tvb, bit_offset, 1, ENC_BIG_ENDIAN);
    bit_offset += 1;
    proto_tree_add_bits_item(tree, hf_gsm_a_rr_3g_ba_ind, tvb, bit_offset, 1, ENC_BIG_ENDIAN);
    bit_offset += 1;
    proto_tree_add_bits_item(tree, hf_gsm_a_rr_mp_change_mark, tvb, bit_offset, 1, ENC_BIG_ENDIAN);
    bit_offset += 1;
    proto_tree_add_bits_item(tree, hf_gsm_a_rr_mi_index, tvb, bit_offset, 4, ENC_BIG_ENDIAN);
    bit_offset += 4;
    proto_tree_add_bits_item(tree, hf_gsm_a_rr_mi_count, tvb, bit_offset, 4, ENC_BIG_ENDIAN);
    bit_offset += 4;
    proto_tree_add_bits_item(tree, hf_gsm_a_rr_pwrc, tvb, bit_offset, 1, ENC_BIG_ENDIAN);
    bit_offset += 1;
    proto_tree_add_bits_item(tree, hf_gsm_a_rr_gsm_report_type, tvb, bit_offset, 1, ENC_BIG_ENDIAN);
    bit_offset += 1;
    proto_tree_add_bits_item(tree, hf_gsm_a_rr_reporting_rate, tvb, bit_offset, 1, ENC_BIG_ENDIAN);
    bit_offset +=1;
    proto_tree_add_bits_item(tree, hf_gsm_a_rr_invalid_bsic_reporting, tvb, bit_offset, 1, ENC_BIG_ENDIAN);
    bit_offset +=1;
    if (gsm_rr_csn_flag(tvb, tree, bit_offset++, hf_gsm_a_rr_real_time_difference_description))
    { /* Real Time Difference Description */
        bit_offset += de_rr_rtd_desc(tvb, tree, bit_offset, DE_RR_REST_OCTETS_RTD_DESC);
    }
    if (gsm_rr_csn_flag(tvb, tree, bit_offset++, hf_gsm_a_rr_bsic_description))
    { /* BSIC Description */
        bit_offset += de_rr_bsic_desc(tvb, tree, bit_offset, DE_RR_REST_OCTETS_BSIC_DESC);
    }
    if (gsm_rr_csn_flag(tvb, tree, bit_offset++, hf_gsm_a_rr_report_priority_description))
    { /* Report Priority Description */
        bit_offset += de_rr_report_priority_desc(tvb, tree, bit_offset, DE_RR_REST_OCTETS_REPORT_PRIO_DESC);
    }
    if (gsm_rr_csn_flag(tvb, tree, bit_offset++, hf_gsm_a_rr_measurement_parameters_description))
    { /* Measurement Parameters Description */
        bit_offset += de_rr_meas_param_desc(tvb, tree, bit_offset, DE_RR_REST_OCTETS_MEAS_PARAM_DESC);
    }
    if (gsm_rr_csn_flag(tvb, tree, bit_offset++, hf_gsm_a_rr_future_extensions_of_the_2g_parameters))
    {  /* used for future extensions of the 2G parameters */
        value = tvb_get_bits8(tvb,bit_offset,8);
        bit_offset += 8 + value + 1;
    }
    if (gsm_rr_csn_flag(tvb, tree, bit_offset++, hf_gsm_a_rr_3g_neighbour_cell_description))
    { /* 3G Neighbour Cell Description */
        bit_offset_sav = bit_offset;
        subtree = proto_tree_add_subtree(tree, tvb, bit_offset>>3, -1, ett_gsm_rr_rest_octets_elem[DE_RR_REST_OCTETS_3G_NEIGH_CELL_DESC], &item,
                            gsm_rr_rest_octets_elem_strings[DE_RR_REST_OCTETS_3G_NEIGH_CELL_DESC]);
        if (gsm_rr_csn_flag(tvb, subtree, bit_offset++, hf_gsm_a_rr_3g_wait_present))
        {
            proto_tree_add_bits_item(subtree, hf_gsm_a_rr_3g_wait, tvb, bit_offset, 3, ENC_BIG_ENDIAN);
            bit_offset += 3;
        }
        if (gsm_rr_csn_flag(tvb, subtree, bit_offset++, hf_gsm_a_rr_index_start_3g_present))
        {
            proto_tree_add_bits_item(subtree, hf_gsm_a_rr_index_start_3g, tvb, bit_offset, 7, ENC_BIG_ENDIAN);
            bit_offset += 7;
        }
        if (gsm_rr_csn_flag(tvb, subtree, bit_offset++, hf_gsm_a_rr_absolute_index_start_emr_present))
        {
            proto_tree_add_bits_item(subtree, hf_gsm_a_rr_absolute_index_start_emr, tvb, bit_offset, 7, ENC_BIG_ENDIAN);
            bit_offset += 7;
        }
        if (gsm_rr_csn_flag(tvb, subtree, bit_offset++, hf_gsm_a_rr_utran_fdd_description))
        { /* UTRAN FDD Description */
            bit_offset += de_rr_si2quater_meas_info_utran_fdd_desc(tvb, subtree, bit_offset);
        }
        if (gsm_rr_csn_flag(tvb, subtree, bit_offset++, hf_gsm_a_rr_utran_tdd_description))
        { /* UTRAN TDD Description */
            bit_offset += de_rr_si2quater_meas_info_utran_tdd_desc(tvb, subtree, bit_offset);
        }
        if (gsm_rr_csn_flag(tvb, subtree, bit_offset++, hf_gsm_a_rr_cdma2000_description))
        { /* CDMA2000 Description */
            bit_offset_sav2 = bit_offset;
            subtree2 = proto_tree_add_subtree(subtree, tvb, bit_offset>>3, -1, ett_gsm_rr_rest_octets_elem[DE_RR_REST_OCTETS_CDMA2000_DESC], &item2,
                                            gsm_rr_rest_octets_elem_strings[DE_RR_REST_OCTETS_CDMA2000_DESC]);
            bit_offset += 16; /* cdma2000 frequency band + cdma2000 frequency */
            idx = tvb_get_bits8(tvb,bit_offset,5); /* number_cdma2000_cells */
            bit_offset += 5;
            while (idx)
            {
                bit_offset += 9; /* Pilot PN offset */
                if (gsm_rr_csn_flag(tvb, subtree, bit_offset++, hf_gsm_a_rr_additional_information_for_3x_auxiliary_pilot))
                {
                    value = tvb_get_bits8(tvb,bit_offset,3);
                    switch (value)
                    {
                    case 0:
                        bit_offset += 5; /* TD_MODE + TD_POWER_LEVEL */
                        break;
                    case 1:
                        bit_offset += 2; /* QOF */
                        bit_offset += tvb_get_bits8(tvb,bit_offset,3) + 3 + 6; /* WALSH_LEN_A + bit(val(WALSH_LEN_A)+6) */
                        break;
                    case 2:
                        bit_offset += 2; /* QOF */
                        bit_offset += tvb_get_bits8(tvb,bit_offset,3) + 3 + 6; /* WALSH_LEN_B + bit(val(WALSH_LEN_B)+6) */
                        bit_offset += 4; /* AUX_TD_POWER_LEVEL + TD_MODE */
                        break;
                    case 3:
                        bit_offset += 8; /* SR3_PRIM_PILOT + SR3_PILOT_POWER1 + SR3_PILOT_POWER2 */
                        break;
                    case 6:
                        bit_offset += 10; /* SR3_PRIM_PILOT + SR3_PILOT_POWER1 + SR3_PILOT_POWER2 + QOF */
                        bit_offset += tvb_get_bits8(tvb,bit_offset,3) + 3 + 6; /* WALSH_LEN_C + bit(val(WALSH_LEN_C)+6) */
                        if (tvb_get_bits8(tvb,bit_offset,1))
                        {
                            bit_offset += 3; /* 1 + QOF1 */
                            bit_offset += tvb_get_bits8(tvb,bit_offset,3) + 3 + 6; /* WALSH_LENGTH1 + bit(val(WALSH_LENGTH1)+6) */
                        }
                        else
                            bit_offset += 1;
                        if (tvb_get_bits8(tvb,bit_offset,1))
                        {
                            bit_offset += 3; /* 1 + QOF2 */
                            bit_offset += tvb_get_bits8(tvb,bit_offset,3) + 3 + 6; /* WALSH_LENGTH2 + bit(val(WALSH_LENGTH2)+6) */
                        }
                        else
                            bit_offset += 1;
                        break;
                    default:
                        /* decoding sequence is unknown ! */
                        return;
                    }
                }
                idx -= 1;
            }
            proto_tree_add_expert_format(subtree2, pinfo, &ei_gsm_a_rr_data_not_dissected, tvb, bit_offset_sav2>>3, ((bit_offset-bit_offset_sav2)>>3)+1, "Data (Not decoded)");
            proto_item_set_len(item2, (bit_offset>>3) - (bit_offset_sav>>3)+1);
        }
        proto_item_set_len(item, (bit_offset>>3) - (bit_offset_sav>>3)+1);
    }
    if (gsm_rr_csn_flag(tvb, subtree, bit_offset++, hf_gsm_a_rr_3g_measurement_parameters_description))
    { /* 3G Measurement Parameters Description */
        uint8_t reporting_quant = 0;
        bit_offset_sav = bit_offset;
        subtree = proto_tree_add_subtree(tree, tvb, bit_offset>>3, -1, ett_gsm_rr_rest_octets_elem[DE_RR_REST_OCTETS_3G_MEAS_PARAM_DESC], &item,
                                    gsm_rr_rest_octets_elem_strings[DE_RR_REST_OCTETS_3G_MEAS_PARAM_DESC]);
        proto_tree_add_bits_item(subtree, hf_gsm_a_rr_qsearch_c, tvb, bit_offset, 4, ENC_BIG_ENDIAN);
        bit_offset += 4;
        proto_tree_add_bits_item(subtree, hf_gsm_a_rr_3g_search_prio, tvb, bit_offset, 1, ENC_BIG_ENDIAN);
        bit_offset += 1;
        proto_tree_add_bits_item(subtree, hf_gsm_a_rr_fdd_rep_quant, tvb, bit_offset, 1, ENC_BIG_ENDIAN);
        reporting_quant = gsm_rr_csn_flag(tvb, subtree, bit_offset++, hf_gsm_a_rr_3g_reporting_quantity);
        if (gsm_rr_csn_flag(tvb, subtree, bit_offset++, hf_gsm_a_rr_fdd_multirat_reporting_present))
        {
            proto_tree_add_bits_item(subtree, hf_gsm_a_rr_fdd_multirat_reporting, tvb, bit_offset, 2, ENC_BIG_ENDIAN);
            bit_offset += 2;
        }
        if (gsm_rr_csn_flag(tvb, subtree, bit_offset++, hf_gsm_a_rr_fdd_reporting_offset_present))
        {
            proto_tree_add_bits_item(subtree, hf_gsm_a_rr_fdd_reporting_offset, tvb, bit_offset, 3, ENC_BIG_ENDIAN);
            bit_offset += 3;
            if (reporting_quant == 0)
            {
              proto_tree_add_bits_item(subtree, hf_gsm_a_rr_fdd_reporting_threshold_rscp, tvb, bit_offset, 3, ENC_BIG_ENDIAN);
            }
            else
            {
              proto_tree_add_bits_item(subtree, hf_gsm_a_rr_fdd_reporting_threshold_ecn0, tvb, bit_offset, 3, ENC_BIG_ENDIAN);
            }
            bit_offset += 3;
        }
        if (gsm_rr_csn_flag(tvb, subtree, bit_offset++, hf_gsm_a_rr_tdd_multirat_reporting_present))
        {
            proto_tree_add_bits_item(subtree, hf_gsm_a_rr_tdd_multirat_reporting, tvb, bit_offset, 2, ENC_BIG_ENDIAN);
            bit_offset += 2;
        }
        if (gsm_rr_csn_flag(tvb, subtree, bit_offset++, hf_gsm_a_rr_tdd_reporting_offset_present))
        {
            proto_tree_add_bits_item(subtree, hf_gsm_a_rr_tdd_reporting_offset, tvb, bit_offset, 3, ENC_BIG_ENDIAN);
            bit_offset += 3;
            if (reporting_quant == 0)
            {
              proto_tree_add_bits_item(subtree, hf_gsm_a_rr_tdd_reporting_threshold_rscp, tvb, bit_offset, 3, ENC_BIG_ENDIAN);
            }
            else
            {
              proto_tree_add_bits_item(subtree, hf_gsm_a_rr_tdd_reporting_threshold_ecn0, tvb, bit_offset, 3, ENC_BIG_ENDIAN);
            }
            bit_offset += 3;
        }
        if (gsm_rr_csn_flag(tvb, subtree, bit_offset++, hf_gsm_a_rr_cdma2000_multirat_reporting))
            bit_offset += 2; /* CDMA2000 Multirat Reporting */
        if (gsm_rr_csn_flag(tvb, subtree, bit_offset++, hf_gsm_a_rr_cdma2000_reporting_threshold))
            bit_offset += 6; /* CDMA2000 Reporting Offset + CDMA2000 Reporting Threshold */
        proto_item_set_len(item, (bit_offset>>3) - (bit_offset_sav>>3)+1);
    }

    /* Null breakpoint */
    if (bit_len - bit_offset > 0)
    {
        /* There is still room left in the Rest Octets IE */
        if (gsm_rr_csn_HL_flag(tvb, tree, 0, bit_offset++, hf_gsm_a_rr_additions_in_rel_5))
        { /* Additions in Rel-5 */
            if (gsm_rr_csn_flag(tvb, subtree, bit_offset++, hf_gsm_a_rr_3g_additional_measurement_parameters_description_2))
            { /* 3G Additional Measurement Parameters Description 2 */
                bit_offset += de_rr_3g_add_meas_param_desc2(tvb, tree, bit_offset);
            }

            /* Null breakpoint */
            if (bit_len - bit_offset > 0)
            {
                /* There is still room left in the Rest Octets IE */
                if (gsm_rr_csn_HL_flag(tvb, tree, 0, bit_offset++, hf_gsm_a_rr_additions_in_rel_7))
                { /* Additions in Rel-7 */
                    if (gsm_rr_csn_flag(tvb, subtree, bit_offset++, hf_gsm_a_rr_700_reporting))
                    {
                        proto_tree_add_bits_item(tree, hf_gsm_a_rr_700_reporting_offset, tvb, bit_offset, 3, ENC_BIG_ENDIAN);
                        bit_offset += 3;
                        proto_tree_add_bits_item(tree, hf_gsm_a_rr_700_reporting_threshold, tvb, bit_offset, 3, ENC_BIG_ENDIAN);
                        bit_offset += 3;
                    }
                    if (gsm_rr_csn_flag(tvb, subtree, bit_offset++, hf_gsm_a_rr_810_reporting))
                    {
                        proto_tree_add_bits_item(tree, hf_gsm_a_rr_810_reporting_offset, tvb, bit_offset, 3, ENC_BIG_ENDIAN);
                        bit_offset += 3;
                        proto_tree_add_bits_item(tree, hf_gsm_a_rr_810_reporting_threshold, tvb, bit_offset, 3, ENC_BIG_ENDIAN);
                        bit_offset += 3;
                    }

                    /* Null breakpoint */
                    if (bit_len - bit_offset > 0)
                    {
                      /* There is still room left in the Rest Octets IE */
                       /* Additions in Rel-8 */
                      if (gsm_rr_csn_HL_flag(tvb, tree, 0, bit_offset++, hf_gsm_a_rr_additions_in_rel_8))
                      { /* Additions in Rel-8 */
                        if (gsm_rr_csn_flag(tvb, subtree, bit_offset++, hf_gsm_a_rr_3g_supplementary_parameters_description))
                        {
                          bit_offset += de_rr_3g_supplementary_param_desc_mi(tvb, tree, bit_offset);
                        }
                        if (gsm_rr_csn_flag(tvb, subtree, bit_offset++, hf_gsm_a_rr_eutran_parameters_description))
                        {
                          bit_offset += de_rr_eutran_param_desc_mi(tvb, tree, bit_offset);
                        }
                        if (gsm_rr_csn_flag(tvb, subtree, bit_offset++, hf_gsm_a_rr_eutran_csg_description))
                        {
                          bit_offset += de_rr_eutran_csg_desc_mi(tvb, tree, bit_offset);
                        }
                      }
                    }
                }
            }
        }
    }
    gsm_rr_padding_bits(tree, tvb, bit_offset, tvb_len, PADDING_BYTE);
}

static uint32_t
sacch_rr_eutran_meas_report(tvbuff_t *tvb, proto_tree *tree, uint32_t bit_offset, unsigned len_in_bit _U_)
{
    proto_tree *subtree;
    int         curr_bit_offset;
    int8_t      n_eutran;

    curr_bit_offset = bit_offset;

    subtree = proto_tree_add_subtree(tree, tvb, curr_bit_offset>>3, -1, ett_gsm_rr_rest_octets_elem[DE_RR_REST_OCTETS_EUTRAN_MEASUREMENT_REPORT], NULL,
                gsm_rr_rest_octets_elem_strings[DE_RR_REST_OCTETS_EUTRAN_MEASUREMENT_REPORT]);

    n_eutran = tvb_get_bits8(tvb,curr_bit_offset,2);
    n_eutran += 1;
    proto_tree_add_bits_item(subtree, hf_gsm_a_rr_eutran_mr_n_eutran, tvb, curr_bit_offset, 2, ENC_BIG_ENDIAN);
    curr_bit_offset += 2;

    while ( (n_eutran > 0) && (curr_bit_offset - bit_offset < len_in_bit) )
    {
        proto_tree_add_bits_item(subtree, hf_gsm_a_rr_eutran_mr_freq_idx, tvb, curr_bit_offset, 3, ENC_BIG_ENDIAN);
        curr_bit_offset += 3;
        proto_tree_add_bits_item(subtree, hf_gsm_a_rr_eutran_mr_cell_id, tvb, curr_bit_offset, 9, ENC_BIG_ENDIAN);
        curr_bit_offset += 9;
        proto_tree_add_bits_item(subtree, hf_gsm_a_rr_eutran_mr_rpt_quantity, tvb, curr_bit_offset, 6, ENC_BIG_ENDIAN);
        curr_bit_offset += 6;
        n_eutran -= 1;
    }

    return curr_bit_offset - bit_offset;
}

/*
 * [4] 9.1.55 Enhanced Measurement Information
 */
static const true_false_string gsm_a_rr_bsic_seen_value = {
    "One Cell or more with invalid BSIC and allowed NCC part of BSIC is seen",
    "No cell with invalid BSIC and allowed NCC part of BSIC is seen"
};

static const true_false_string gsm_a_rr_scale_value = {
    "+10 dB",
    "0 dB"
};

static const value_string gsm_a_rr_mean_bep_gmsk_vals[] = {
    {  0, "log10(BEP) > -0.60"},
    {  1, "-0.70 < log10(BEP) < -0.60"},
    {  2, "-0.80 < log10(BEP) < -0.70"},
    {  3, "-0.90 < log10(BEP) < -0.80"},
    {  4, "-1.00 < log10(BEP) < -0.90"},
    {  5, "-1.10 < log10(BEP) < -1.00"},
    {  6, "-1.20 < log10(BEP) < -1.10"},
    {  7, "-1.30 < log10(BEP) < -1.20"},
    {  8, "-1.40 < log10(BEP) < -1.30"},
    {  9, "-1.50 < log10(BEP) < -1.40"},
    { 10, "-1.60 < log10(BEP) < -1.50"},
    { 11, "-1.70 < log10(BEP) < -1.60"},
    { 12, "-1.80 < log10(BEP) < -1.70"},
    { 13, "-1.90 < log10(BEP) < -1.80"},
    { 14, "-2.00 < log10(BEP) < -1.90"},
    { 15, "-2.10 < log10(BEP) < -2.00"},
    { 16, "-2.20 < log10(BEP) < -2.10"},
    { 17, "-2.30 < log10(BEP) < -2.20"},
    { 18, "-2.40 < log10(BEP) < -2.30"},
    { 19, "-2.50 < log10(BEP) < -2.40"},
    { 20, "-2.60 < log10(BEP) < -2.50"},
    { 21, "-2.70 < log10(BEP) < -2.60"},
    { 22, "-2.80 < log10(BEP) < -2.70"},
    { 23, "-2.90 < log10(BEP) < -2.80"},
    { 24, "-3.00 < log10(BEP) < -2.90"},
    { 25, "-3.10 < log10(BEP) < -3.00"},
    { 26, "-3.20 < log10(BEP) < -3.10"},
    { 27, "-3.30 < log10(BEP) < -3.20"},
    { 28, "-3.40 < log10(BEP) < -3.30"},
    { 29, "-3.50 < log10(BEP) < -3.40"},
    { 30, "-3.60 < log10(BEP) < -3.50"},
    { 31, "log10(BEP) < -3.60"},
    {  0, NULL }
};

static const value_string gsm_a_rr_cv_bep_vals[] = {
    {  0, "1.75 < CV BEP < 2.00"},
    {  1, "1.50 < CV BEP < 1.75"},
    {  2, "1.25 < CV BEP < 1.50"},
    {  3, "1.00 < CV BEP < 1.25"},
    {  4, "0.75 < CV BEP < 1.00"},
    {  5, "0.50 < CV BEP < 0.75"},
    {  6, "0.25 < CV BEP < 0.50"},
    {  7, "0.00 < CV BEP < 0.25"},
    {  0, NULL }
};

static void
sacch_rr_enh_meas_report(tvbuff_t *tvb, proto_tree *tree, packet_info *pinfo _U_, uint32_t offset, unsigned len)
{
    proto_tree *subtree;
    proto_item *item;
    uint32_t    curr_offset;
    unsigned    bit_offset, bit_offset_sav;
    uint8_t     tvb_len = tvb_reported_length(tvb);
    uint16_t    bit_len = tvb_len << 3;
    uint8_t     idx;

    curr_offset = offset;
    bit_offset = curr_offset << 3;

    proto_tree_add_bits_item(tree, hf_gsm_a_rr_ba_used, tvb, bit_offset, 1, ENC_BIG_ENDIAN);
    bit_offset += 1;
    proto_tree_add_bits_item(tree, hf_gsm_a_rr_3g_ba_used, tvb, bit_offset, 1, ENC_BIG_ENDIAN);
    bit_offset += 1;
    proto_tree_add_bits_item(tree, hf_gsm_a_rr_bsic_seen, tvb, bit_offset, 1, ENC_BIG_ENDIAN);
    bit_offset += 1;
    proto_tree_add_bits_item(tree, hf_gsm_a_rr_scale, tvb, bit_offset, 1, ENC_BIG_ENDIAN);
    bit_offset += 1;
    if (gsm_rr_csn_flag(tvb, tree, bit_offset++, hf_gsm_a_rr_serving_cell_data))
    { /* Serving cell data */
        bit_offset_sav = bit_offset;
        subtree = proto_tree_add_subtree(tree, tvb, bit_offset>>3, -1, ett_gsm_rr_rest_octets_elem[DE_RR_REST_OCTETS_SERVING_CELL_DATA], &item,
                        gsm_rr_rest_octets_elem_strings[DE_RR_REST_OCTETS_SERVING_CELL_DATA]);
        proto_tree_add_bits_item(subtree, hf_gsm_a_rr_dtx_used, tvb, bit_offset, 1, ENC_BIG_ENDIAN);
        bit_offset += 1;
        proto_tree_add_bits_item(subtree, hf_gsm_a_rr_rxlev_full_serv_cell, tvb, bit_offset, 6, ENC_BIG_ENDIAN);
        bit_offset += 6;
        proto_tree_add_bits_item(subtree, hf_gsm_a_rr_rxqual_full_serv_cell, tvb, bit_offset, 3, ENC_BIG_ENDIAN);
        bit_offset += 3;
        proto_tree_add_bits_item(subtree, hf_gsm_a_rr_mean_bep_gmsk, tvb, bit_offset, 5, ENC_BIG_ENDIAN);
        bit_offset += 5;
        proto_tree_add_bits_item(subtree, hf_gsm_a_rr_mean_cv_bep, tvb, bit_offset, 3, ENC_BIG_ENDIAN);
        bit_offset += 3;
        proto_tree_add_bits_item(subtree, hf_gsm_a_rr_nbr_rcvd_blocks, tvb, bit_offset, 5, ENC_BIG_ENDIAN);
        bit_offset += 5;
        proto_item_set_len(item, (bit_offset>>3) - (bit_offset_sav>>3)+1);
    }
    while (gsm_rr_csn_flag(tvb, tree, bit_offset++, hf_gsm_a_rr_repeated_invalid_bsic_information))
    { /* Repeated Invalid BSIC Information */
        bit_offset_sav = bit_offset;
        subtree = proto_tree_add_subtree(tree, tvb, bit_offset>>3, -1, ett_gsm_rr_rest_octets_elem[DE_RR_REST_OCTETS_REPEAT_INV_BSIC_INFO], &item,
                        gsm_rr_rest_octets_elem_strings[DE_RR_REST_OCTETS_REPEAT_INV_BSIC_INFO]);
        proto_tree_add_bits_item(subtree, hf_gsm_a_rr_bcch_freq_ncell, tvb, bit_offset, 5, ENC_BIG_ENDIAN);
        bit_offset += 5;
        proto_tree_add_bits_item(subtree, hf_gsm_a_rr_bsic_ncell, tvb, bit_offset, 6, ENC_BIG_ENDIAN);
        bit_offset += 6;
        proto_tree_add_bits_item(subtree, hf_gsm_a_rr_rxlev_ncell, tvb, bit_offset, 6, ENC_BIG_ENDIAN);
        bit_offset += 6;
        proto_item_set_len(item, (bit_offset>>3) - (bit_offset_sav>>3)+1);
    }
    if (gsm_rr_csn_flag(tvb, tree, bit_offset++, hf_gsm_a_rr_bitmap_type_reporting))
    { /* Bitmap Type Reporting */
        subtree = proto_tree_add_subtree(tree, tvb, bit_offset>>3, -1, ett_gsm_rr_rest_octets_elem[DE_RR_REST_OCTETS_BITMAP_TYPE_REPORTING], NULL,
                        gsm_rr_rest_octets_elem_strings[DE_RR_REST_OCTETS_BITMAP_TYPE_REPORTING]);
        idx = 0;
        while (((unsigned)(bit_offset>>3) <= (offset + len)) && (idx < 96))
        {
            if (gsm_rr_csn_flag(tvb, subtree, bit_offset++, hf_gsm_a_rr_reporting_quantity_present))
            {
                proto_tree_add_uint(subtree, hf_gsm_a_rr_neighbour_cell_list_index, tvb, bit_offset>>3, 1, idx);
                proto_tree_add_bits_item(subtree, hf_gsm_a_rr_reporting_quantity, tvb, bit_offset, 6, ENC_BIG_ENDIAN);
                bit_offset += 6;
            }
            idx += 1;
        }
    }
    /* Null breakpoint */
    if (bit_offset < bit_len)
    {
       if (gsm_rr_csn_HL_flag(tvb, tree, 0, bit_offset++, hf_gsm_a_rr_additions_in_rel_8))
       {
           int8_t bitmap_length;
           bit_offset_sav = bit_offset;
           subtree = proto_tree_add_subtree(tree, tvb, bit_offset>>3, -1, ett_gsm_rr_rest_octets_elem[DE_RR_REST_OCTETS_REPORTING_QUANTITY], &item,
                                        gsm_rr_rest_octets_elem_strings[DE_RR_REST_OCTETS_REPORTING_QUANTITY]);

           bitmap_length = tvb_get_bits8(tvb,bit_offset,7);
           bitmap_length += 1;
           proto_tree_add_bits_item(subtree, hf_gsm_a_rr_emr_bitmap_length, tvb, bit_offset, 7, ENC_BIG_ENDIAN);
           bit_offset += 7;

           /* REPORTING_QUANTITY */
           idx = 0;
           while ((unsigned)(bit_offset>>3) <= (offset + len) && (idx < bitmap_length) )
           {
              if (gsm_rr_csn_flag(tvb, subtree, bit_offset++, hf_gsm_a_rr_reporting_quantity_present))
               {
                   proto_tree_add_uint(subtree, hf_gsm_a_rr_neighbour_cell_list_index, tvb, bit_offset>>3, 1, idx);
                   proto_tree_add_bits_item(subtree, hf_gsm_a_rr_reporting_quantity, tvb, bit_offset, 6, ENC_BIG_ENDIAN);
                   bit_offset += 6;
               }
               idx += 1;
           }

           /* E-UTRAN Measurement Report */
           if (gsm_rr_csn_flag(tvb, subtree, bit_offset++, hf_gsm_a_rr_e_utran_measurement_report))
           {
               bit_offset += sacch_rr_eutran_meas_report(tvb, subtree, bit_offset, len*8-(bit_offset-offset*8));
           }
           proto_item_set_len(item, (bit_offset>>3) - (bit_offset_sav>>3)+1);
       }
    }
    gsm_rr_padding_bits(tree, tvb, bit_offset, tvb_len, PADDING_BYTE);
}

/*
 * [4] 9.1.59 EC-Immediate Assignment Type 1
 */
static void
dtap_rr_ec_imm_ass_type_1(tvbuff_t *tvb, proto_tree *tree, packet_info *pinfo _U_, uint32_t offset, unsigned len)
{
    uint32_t curr_offset;
    uint32_t consumed;
    unsigned   curr_len;

    curr_offset = offset;
    curr_len = len;

    /* Page Mode                                                10.5.2.26       M V 1/2 */
    /* Feature indicator                                        10.5.2.76       M V 1/2 */
    ELEM_MAND_VV_SHORT(GSM_A_PDU_TYPE_RR, DE_RR_PAGE_MODE,
                       GSM_A_PDU_TYPE_RR, DE_RR_FEATURE_INDICATOR, ei_gsm_a_rr_missing_mandatory_element);

    /* Request Reference 1      Request Reference               10.5.2.30       M V 3   */
    ELEM_MAND_V(GSM_A_PDU_TYPE_RR, DE_RR_REQ_REF, NULL, ei_gsm_a_rr_missing_mandatory_element);
    /* EC Channel Description   EC Channel Description          10.5.2.84       M V 2 */
    ELEM_MAND_V(GSM_A_PDU_TYPE_RR, DE_RR_EC_PKT_CH_DSC1, NULL, ei_gsm_a_rr_missing_mandatory_element);
    /* Timing Advance 1 Timing Advance                          10.5.2.86       M V 3-14   */
    ELEM_MAND_V(GSM_A_PDU_TYPE_RR, DE_RR_EC_FUA, NULL, ei_gsm_a_rr_missing_mandatory_element);

}


/*
 * [4] 9.1.60 EC-Immediate Assignment Type 2
 */
static void
dtap_rr_ec_imm_ass_type_2(tvbuff_t *tvb, proto_tree *tree, packet_info *pinfo _U_, uint32_t offset, unsigned len _U_)
{
    proto_tree *subtree;
    uint32_t    curr_offset;
    uint32_t    curr_bit_offset;

    curr_offset = offset;
    curr_bit_offset  = curr_offset << 3;

    curr_bit_offset += 4; /* Skip msgtype */

    proto_tree_add_bits_item(tree, hf_gsm_a_rr_ec_used_dl_cc, tvb, curr_bit_offset, 2, ENC_BIG_ENDIAN);
    curr_bit_offset += 2;

    if (gsm_rr_csn_flag(tvb, tree, curr_bit_offset++, hf_gsm_a_rr_ec_page_extension_exist))
    {
        proto_tree_add_bits_item(tree, hf_gsm_a_rr_ec_page_extension, tvb, curr_bit_offset, 4, ENC_BIG_ENDIAN);
        curr_bit_offset += 4;
    }

    curr_bit_offset += de_rr_ec_request_reference(tvb, tree, pinfo, curr_bit_offset, NULL);

    curr_bit_offset += de_rr_ec_pkt_ch_dsc2(tvb, tree, pinfo, curr_bit_offset);

    /*TODO: reuse legacy FN - use subtree there?*/
    /*de_rr_ec_fua(tvb, tree, pinfo, (1<<31)|curr_bit_offset, len, NULL, 0);*/
    subtree = proto_tree_add_subtree(tree, tvb, offset, -1, ett_gsm_rr_elem[DE_RR_EC_FUA], NULL,
                               val_to_str_ext_const(DE_RR_EC_FUA, &gsm_rr_elem_strings_ext, ""));

    proto_tree_add_bits_item(subtree, hf_gsm_a_rr_ec_enhanced_access_burst, tvb, curr_bit_offset, 1, ENC_BIG_ENDIAN);
    curr_bit_offset +=1;

    if (gsm_rr_csn_flag(tvb, subtree, curr_bit_offset++, hf_gsm_a_rr_timing_adv_present))
    {
        proto_tree_add_bits_item(subtree, hf_gsm_a_rr_timing_adv, tvb, curr_bit_offset, 6, ENC_BIG_ENDIAN);
        curr_bit_offset += 6;
    }

    proto_tree_add_bits_item(subtree, hf_gsm_a_rr_ec_starting_ul_timeslot, tvb, curr_bit_offset, 3, ENC_BIG_ENDIAN);
    curr_bit_offset += 3;
    proto_tree_add_bits_item(subtree, hf_gsm_a_rr_tfi_assignment, tvb, curr_bit_offset, 5, ENC_BIG_ENDIAN);
    curr_bit_offset += 5;
    proto_tree_add_bits_item(subtree, hf_gsm_a_rr_ec_starting_dl_timeslot_offset, tvb, curr_bit_offset, 2, ENC_BIG_ENDIAN);
    curr_bit_offset += 2;
    proto_tree_add_bits_item(subtree, hf_gsm_a_rr_ec_overlaid_cdma_code, tvb, curr_bit_offset, 2, ENC_BIG_ENDIAN);
    curr_bit_offset += 2;

    if (gsm_rr_csn_flag(tvb, subtree, curr_bit_offset++, hf_gsm_a_rr_ec_mcs_exist))
    { /* MCS Description */
        proto_tree_add_bits_item(subtree, hf_gsm_a_rr_egprs_mcs, tvb, curr_bit_offset, 4, ENC_BIG_ENDIAN);
        curr_bit_offset += 4;
    }

    proto_tree_add_bits_item(subtree, hf_gsm_a_rr_gamma, tvb, curr_bit_offset, 5, ENC_BIG_ENDIAN);
    curr_bit_offset += 5;
    proto_tree_add_bits_item(subtree, hf_gsm_a_rr_ec_alpha_enable, tvb, curr_bit_offset, 1, ENC_BIG_ENDIAN);
    curr_bit_offset += 1;

    if (gsm_rr_csn_flag(tvb, subtree, curr_bit_offset++, hf_gsm_a_rr_p0_present))
    {
        proto_tree_add_bits_item(subtree, hf_gsm_a_rr_p0, tvb, curr_bit_offset, 4, ENC_BIG_ENDIAN);
        curr_bit_offset += 4;
        proto_tree_add_bits_item(subtree, hf_gsm_a_rr_pr_mode, tvb, curr_bit_offset, 1, ENC_BIG_ENDIAN);
        curr_bit_offset += 1;
    }

    proto_tree_add_bits_item(subtree, hf_gsm_a_rr_ec_start_first_ul_data_block, tvb, curr_bit_offset, 4, ENC_BIG_ENDIAN);
    curr_bit_offset += 4;

    while(gsm_rr_csn_flag(tvb, subtree, curr_bit_offset++, hf_gsm_a_rr_ec_fua_gap_list))
    {
        if (!gsm_rr_csn_flag(tvb, subtree, curr_bit_offset++, hf_gsm_a_rr_ec_start_fn_next_data_block_exist))
        {
            proto_tree_add_bits_item(subtree, hf_gsm_a_rr_ec_start_fn_next_data_block, tvb, curr_bit_offset, 3, ENC_BIG_ENDIAN);
            curr_bit_offset += 3;
        }
        else
        {
            proto_tree_add_uint(subtree, hf_gsm_a_rr_ec_start_fn_next_data_block, tvb, (curr_bit_offset>>3), 0, 0);
        }
    }

}


/*
 * [4] 9.1.61 EC-Immediate Assignment Reject
 */
static void
dtap_rr_ec_imm_ass_rej(tvbuff_t *tvb, proto_tree *tree, packet_info *pinfo _U_, uint32_t offset, unsigned len _U_)
{
    uint32_t    curr_offset;
    uint32_t    curr_bit_offset;

    curr_offset = offset;
    curr_bit_offset  = curr_offset << 3;

    curr_bit_offset += 4; /* Skip msgtype */

    proto_tree_add_bits_item(tree, hf_gsm_a_rr_ec_used_dl_cc, tvb, curr_bit_offset, 2, ENC_BIG_ENDIAN);
    curr_bit_offset += 2;

    if (gsm_rr_csn_flag(tvb, tree, curr_bit_offset++, hf_gsm_a_rr_ec_page_extension_exist))
    {
        proto_tree_add_bits_item(tree, hf_gsm_a_rr_ec_page_extension, tvb, curr_bit_offset, 4, ENC_BIG_ENDIAN);
        curr_bit_offset += 4;
    }

    curr_bit_offset += de_rr_ec_request_reference(tvb, tree, pinfo, curr_bit_offset, " - 1");

    proto_tree_add_bits_item(tree, hf_gsm_a_rr_ec_wait_timer, tvb, curr_bit_offset, 8, ENC_BIG_ENDIAN);
    curr_bit_offset += 8;

    if (gsm_rr_csn_flag(tvb, tree, curr_bit_offset++, hf_gsm_a_rr_ec_req_ref_2_present))
    {
        curr_bit_offset += de_rr_ec_request_reference(tvb, tree, pinfo, curr_bit_offset, " - 2");
        proto_tree_add_bits_item(tree, hf_gsm_a_rr_ec_wait_timer, tvb, curr_bit_offset, 8, ENC_BIG_ENDIAN);
        curr_bit_offset += 8;
    }

    if (gsm_rr_csn_flag(tvb, tree, curr_bit_offset++, hf_gsm_a_rr_ec_req_ref_3_present))
    {
        curr_bit_offset += de_rr_ec_request_reference(tvb, tree, pinfo, curr_bit_offset, " - 3");
        proto_tree_add_bits_item(tree, hf_gsm_a_rr_ec_wait_timer, tvb, curr_bit_offset, 8, ENC_BIG_ENDIAN);
    }

}

/*
 * [4] 9.1.62 EC-Dummy
 */
static void
dtap_rr_ec_dummy(tvbuff_t *tvb, proto_tree *tree, packet_info *pinfo _U_, uint32_t offset, unsigned len _U_)
{
    uint32_t    curr_bit_offset;
    curr_bit_offset  = offset << 3;

    curr_bit_offset += 4; /* Skip msgtype */

    proto_tree_add_bits_item(tree, hf_gsm_a_rr_ec_used_dl_cc, tvb, curr_bit_offset, 2, ENC_BIG_ENDIAN);
}

/*
 * [4] 9.1.63 EC-Paging Request
 */
static const char digits[16] = {
    /*  0   1   2   3   4   5   6   7   8   9   a   b   c   d   e  f*/
       '0','1','2','3','4','5','6','7','8','9','?','?','?','?','?','?'
};

static uint32_t
dtap_rr_ec_paging_imsi(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, uint32_t curr_bit_offset)
{
    uint64_t imsi_digits;
    uint8_t i;
    wmem_strbuf_t *imsi_str;
    uint32_t sav_bit_offset;

    proto_tree_add_bits_ret_val(tree, hf_gsm_a_rr_ec_imsi_digits, tvb, curr_bit_offset, 4, &imsi_digits, ENC_BIG_ENDIAN);
    curr_bit_offset += 4;
    sav_bit_offset = curr_bit_offset;
    imsi_str = wmem_strbuf_new_sized(pinfo->pool, (size_t)imsi_digits+2);
    for (i = 0; i <= (uint8_t)imsi_digits; i++) {
        wmem_strbuf_append_c(imsi_str, digits[tvb_get_bits8(tvb, curr_bit_offset, 4)]);
        curr_bit_offset += 4;
    }
    proto_tree_add_string(tree, hf_gsm_a_rr_ec_imsi, tvb, sav_bit_offset,
                          (curr_bit_offset-sav_bit_offset+7)>>3, wmem_strbuf_finalize(imsi_str));
    return curr_bit_offset;
}

static void
dtap_rr_ec_paging_req(tvbuff_t *tvb, proto_tree *tree, packet_info *pinfo, uint32_t offset, unsigned len _U_)
{
    uint32_t    curr_bit_offset;
    curr_bit_offset  = offset << 3;

    curr_bit_offset += 4; /* Skip msgtype */

    proto_tree_add_bits_item(tree, hf_gsm_a_rr_ec_used_dl_cc, tvb, curr_bit_offset, 2, ENC_BIG_ENDIAN);
    curr_bit_offset += 2;

    if (gsm_rr_csn_flag(tvb, tree, curr_bit_offset++, hf_gsm_a_rr_ec_page_extension_exist))
    {
        proto_tree_add_bits_item(tree, hf_gsm_a_rr_ec_page_extension, tvb, curr_bit_offset, 4, ENC_BIG_ENDIAN);
        curr_bit_offset += 4;
    }

    if (gsm_rr_csn_flag(tvb, tree, curr_bit_offset++, hf_gsm_a_rr_ec_ptmsi_imsi_select))
    { /* IMSI */
        curr_bit_offset = dtap_rr_ec_paging_imsi(tvb, pinfo, tree, curr_bit_offset);
    }
    else
    { /* P-TMSI*/
        proto_tree_add_bits_item(tree, hf_gsm_a_tmsi, tvb, curr_bit_offset, 32, ENC_BIG_ENDIAN);
        curr_bit_offset += 32;
    }

    if (gsm_rr_csn_flag(tvb, tree, curr_bit_offset++, hf_gsm_a_rr_ec_mobile_identity_2_exist))
    { /* Mobile identity 2 */
        if (gsm_rr_csn_flag(tvb, tree, curr_bit_offset++, hf_gsm_a_rr_ec_ptmsi_imsi_select))
        { /* IMSI */
            dtap_rr_ec_paging_imsi(tvb, pinfo, tree, curr_bit_offset);
        }
        else
        { /* P-TMSI*/
            proto_tree_add_bits_item(tree, hf_gsm_a_tmsi, tvb, curr_bit_offset, 32, ENC_BIG_ENDIAN);
        }
    }

}

/*
 * [4] 9.1.64 EC-Downlink Assignment
 */
static void
dtap_rr_ec_dl_ass(tvbuff_t *tvb, proto_tree *tree, packet_info *pinfo _U_, uint32_t offset, unsigned len _U_)
{
    proto_tree* subtree;
    uint32_t    curr_offset;
    uint32_t    curr_bit_offset;

    curr_offset = offset;
    curr_bit_offset  = curr_offset << 3;

    curr_bit_offset += 4; /* Skip msgtype */

    proto_tree_add_bits_item(tree, hf_gsm_a_rr_ec_used_dl_cc, tvb, curr_bit_offset, 2, ENC_BIG_ENDIAN);
    curr_bit_offset += 2;

    if (gsm_rr_csn_flag(tvb, tree, curr_bit_offset++, hf_gsm_a_rr_ec_page_extension_exist))
    {
        proto_tree_add_bits_item(tree, hf_gsm_a_rr_ec_page_extension, tvb, curr_bit_offset, 4, ENC_BIG_ENDIAN);
        curr_bit_offset += 4;
    }

    proto_tree_add_bits_item(tree, hf_gsm_a_rr_tlli, tvb, curr_bit_offset, 32, ENC_BIG_ENDIAN);
    curr_bit_offset += 32;

    curr_bit_offset += de_rr_ec_pkt_ch_dsc2(tvb, tree, pinfo, curr_bit_offset);

    /* FIXME:where to put "ett"? subtree = proto_tree_add_subtree(tree, tvb, offset, -1, ett_gsm_rr_elem[DE_RR_EC_FUA], NULL,
                                     "EC Downlink Allocation"); */
    subtree = tree;

    proto_tree_add_bits_item(subtree, hf_gsm_a_rr_timing_adv, tvb, curr_bit_offset, 6, ENC_BIG_ENDIAN);
    curr_bit_offset += 6;

    proto_tree_add_bits_item(subtree, hf_gsm_a_rr_ec_starting_dl_timeslot, tvb, curr_bit_offset, 3, ENC_BIG_ENDIAN);
    curr_bit_offset += 3;

    proto_tree_add_bits_item(subtree, hf_gsm_a_rr_tfi_assignment, tvb, curr_bit_offset, 5, ENC_BIG_ENDIAN);
    curr_bit_offset += 5;

    proto_tree_add_bits_item(subtree, hf_gsm_a_rr_ec_cc1_timeslot_multiplier, tvb, curr_bit_offset, 2, ENC_BIG_ENDIAN);
    curr_bit_offset += 2;

    proto_tree_add_bits_item(subtree, hf_gsm_a_rr_ec_starting_ul_timeslot_offset, tvb, curr_bit_offset, 2, ENC_BIG_ENDIAN);
    curr_bit_offset += 2;

    proto_tree_add_bits_item(subtree, hf_gsm_a_rr_gamma, tvb, curr_bit_offset, 5, ENC_BIG_ENDIAN);
    curr_bit_offset += 5;

    proto_tree_add_bits_item(subtree, hf_gsm_a_rr_ec_alpha_enable, tvb, curr_bit_offset, 1, ENC_BIG_ENDIAN);
    curr_bit_offset += 1;

    if (gsm_rr_csn_flag(tvb, subtree, curr_bit_offset++, hf_gsm_a_rr_p0_present))
    {
        proto_tree_add_bits_item(subtree, hf_gsm_a_rr_p0, tvb, curr_bit_offset, 4, ENC_BIG_ENDIAN);
        curr_bit_offset += 4;
        proto_tree_add_bits_item(subtree, hf_gsm_a_rr_pr_mode, tvb, curr_bit_offset, 1, ENC_BIG_ENDIAN);
    }

}

#define NUM_GSM_DTAP_MSG_RR array_length(gsm_a_dtap_msg_rr_strings)
static int ett_gsm_dtap_msg_rr[NUM_GSM_DTAP_MSG_RR];
static void (* const dtap_msg_rr_fcn[])(tvbuff_t *tvb, proto_tree *tree, packet_info *pinfo _U_, uint32_t offset, unsigned len) = {
    NULL,       /* Reserved */
    dtap_rr_add_ass,            /* Additional Assignment */
    dtap_rr_imm_ass,            /* 9.1.18 Immediate assignment  */
    dtap_rr_imm_ass_ext,        /* Immediate Assignment Extended */
    dtap_rr_imm_ass_rej,        /* Immediate Assignment Reject */
    dtap_rr_ec_imm_ass_type_1,  /* EC-Immediate Assignment Type 1 */

    dtap_rr_dtm_ass_fail,       /* DTM Assignment Failure */
    dtap_rr_dtm_rej,            /* DTM Reject */
    dtap_rr_dtm_req,            /* DTM Request */
    dtap_rr_pkt_assign,         /* Packet Assignment */
    dtap_rr_dtm_ass_cmd,        /* DTM Assignment Command */
    dtap_rr_dtm_info,           /* DTM Information */
    dtap_rr_pkt_notif,          /* Packet Notification */

    dtap_rr_cip_mode_cmd,       /* Ciphering Mode Command */
    dtap_rr_cip_mode_cpte,      /* Ciphering Mode Complete */

    dtap_rr_conf_change_cmd,    /* Configuration Change Command */
    NULL,                       /* Configuration Change Ack. */
    dtap_rr_conf_change_rej,    /* Configuration Change Reject */

    dtap_rr_ass_cmd,            /* 9.1.2 Assignment Command */
    dtap_rr_ass_comp,           /* Assignment Complete */
    dtap_rr_ass_fail,           /* Assignment Failure */
    dtap_rr_ho_cmd,             /* Handover Command */
    dtap_rr_ho_cpte,            /* Handover Complete */
    dtap_rr_ho_fail,            /* Handover Failure */
    dtap_rr_phy_info,           /* Physical Information */

    NULL,                       /* RR-cell Change Order */
    NULL,                       /* PDCH Assignment Command */

    dtap_rr_ch_rel,             /* Channel Release */
    dtap_rr_partial_rel,        /* Partial Release */
    NULL,                       /* Partial Release Complete */

    dtap_rr_paging_req_type_1,  /* Paging Request Type 1 */
    dtap_rr_paging_req_type_2,  /* Paging Request Type 2 */
    dtap_rr_paging_req_type_3,  /* Paging Request Type 3 */
    dtap_rr_paging_resp,        /* Paging Response */
    NULL,                       /* Notification/NCH */
    NULL,                       /* Reserved */
    NULL,                       /* Notification/Response */

    NULL,                       /* Reserved */

    dtap_rr_utran_classmark_change,     /* Utran Classmark Change  */
    NULL,                       /* cdma2000 Classmark Change */
    dtap_rr_inter_syst_to_utran_ho_cmd, /* Inter System to UTRAN Handover Command */
    NULL,                       /* Inter System to cdma2000 Handover Command */

    NULL,                       /* System Information Type 8 */
    dtap_rr_sys_info_1,         /* System Information Type 1 */
    dtap_rr_sys_info_2,         /* System Information Type 2 */
    dtap_rr_sys_info_3,         /* System Information Type 3 */
    dtap_rr_sys_info_4,         /* System Information Type 4 */
    dtap_rr_sys_info_5,         /* System Information Type 5 */
    dtap_rr_sys_info_6,         /* System Information Type 6 */
    NULL,                       /* System Information Type 7 */

    dtap_rr_sys_info_2bis,      /* System Information Type 2bis */
    dtap_rr_sys_info_2ter,      /* System Information Type 2ter */
    dtap_rr_sys_info_2quater,   /* System Information Type 2quater */
    dtap_rr_sys_info_5bis,      /* System Information Type 5bis */
    dtap_rr_sys_info_5ter,      /* System Information Type 5ter */
    NULL,                       /* System Information Type 9 */
    dtap_rr_sys_info_13,        /* System Information Type 13 */

    NULL,                       /* System Information Type 16 */
    NULL,                       /* System Information Type 17 */

    NULL,                       /* System Information Type 18 */
    NULL,                       /* System Information Type 19 */
    NULL,                       /* System Information Type 20 */
    dtap_rr_sys_info_21,        /* System Information Type 21 */

    dtap_rr_ch_mode_mod,        /* Channel Mode Modify */
    dtap_rr_rr_status,          /* RR Status */
    dtap_rr_ch_mode_mod_ack,    /* Channel Mode Modify Acknowledge */
    dtap_rr_freq_redef,         /* Frequency Redefinition */
    dtap_rr_meas_rep,           /* 9.1.21 Measurement report */
    dtap_rr_mm_cm_change,       /* 9.1.11 Classmark Change */
    dtap_rr_cm_enq,             /* Classmark Enquiry */
    dtap_rr_ext_meas_report,    /* Extended Measurement Report */
    dtap_rr_ext_meas_order,     /* Extended Measurement Order */
    dtap_rr_gprs_sus_req,       /* 9.1.13b GPRS Suspension Request */

    dtap_rr_vgcs_upl_grant,     /* VGCS Uplink Grant */
    dtap_rr_upl_rel,            /* Uplink Release */
    NULL,                       /* Reserved */
    NULL,                       /* Uplink Busy */
    dtap_rr_talker_indication,  /* Talker Indication */

    NULL,                       /* UTRAN Classmark Change/Handover To UTRAN Command */  /* spec conflict */

    dtap_rr_app_inf,            /* Application Information */
    NULL                       /* NONE */

};


/* GSM 04.08 9.1.8 Channel request, ESTABLISHMENT CAUSE */

static const value_string gsm_a_rr_cannel_request_3bit_est_cause_vals[] = {
    { 0x00, "Location updating and the network does not set NECI bit to 1"},
    { 0x80, "Answer to paging: 'Any Channel', or ('TCH/F' or 'TCH/H or TCH/F') if MS is 'Full rate only'"},
    { 0xa0, "Emergency call"},
    { 0xc0, "Call re-establishment; TCH/F was in use, or TCH/H was in use but the network does not set NECI bit to 1"},
    { 0xe0, "Originating call and TCH/F is needed, or originating call and the network does not set NECI bit to 1,"
            " or procedures that can be completed with a SDCCH and the network does not set NECI bit to 1"},
    {    0, NULL }
};

static const value_string gsm_a_rr_cannel_request_4bit_est_cause_vals[] = {
    { 0x00, "Location updating and the network sets NECI bit to 1"},
    { 0x10, "Answer to paging: 'SDCCH' / Other procedures which can be completed with an SDCCH and the network sets NECI bit to 1"},
    { 0x20, "Answer to paging: MS is dual rate capable and requests 'TCH/F' only"},
    { 0x30, "Answer to paging: MS is dual rate capable and requests 'TCH/H or TCH/F'"},
    { 0x40, "Originating speech call from dual-rate mobile station when TCH/H is sufficient and the network sets NECI bit to 1"},
    { 0x50, "Originating data call from dual-rate mobile station when TCH/H is sufficient and the network sets NECI bit to 1"},
    { 0x70, "Reserved for future use. An SDCCH may be allocated"},
    {    0, NULL }
};

static const value_string gsm_a_rr_cannel_request_5bit_est_cause_vals[] = {
    { 0x70, "Single block packet access; one block period on a PDCH is needed for two phase packet access or other RR"
            " signalling purpose"},
    { 0x78, "One phase packet access with request for single timeslot uplink transmission; one PDCH is needed"},
    {    0, NULL }
};

static const value_string gsm_a_rr_cannel_request_6bit_est_cause_vals[] = {
    { 0x68, "Call re-establishment; TCH/H was in use and the network sets NECI bit to 1"},
    { 0x6c, "Call re-establishment; TCH/H + TCH/H was in use and the network sets NECI bit to 1"},
    {    0, NULL }
};

static const value_string gsm_a_rr_cannel_request_8bit_est_cause_vals[] = {
    { 0x63, "Reserved for future use. An SDCCH may be allocated"},
    { 0x67, "LMU establishment. An SDCCH may be allocated"},
    { 0x7f, "Reserved. Message may be ignored"},
    {    0, NULL }
};

static bool
ra_channel_request_parse(const char **cause, uint8_t *reference, uint32_t ra)
{
    const char *str;
    uint8_t ref;
    int idx;

    str = try_val_to_str_idx((uint32_t)(ra & 0xe0), gsm_a_rr_cannel_request_3bit_est_cause_vals, &idx);
    if (str != NULL) {
        ref = ra & 0x1f;
        goto found;
    }

    str = try_val_to_str_idx((uint32_t)(ra & 0xf0), gsm_a_rr_cannel_request_4bit_est_cause_vals, &idx);
    if (str != NULL) {
        ref = ra & 0x0f;
        goto found;
    }

    str = try_val_to_str_idx((uint32_t)(ra & 0xf8), gsm_a_rr_cannel_request_5bit_est_cause_vals, &idx);
    if (str != NULL) {
        ref = ra & 0x07;
        if ((idx != 1) || (ref != 0x07)) {
            goto found;
        }
    }

    str = try_val_to_str_idx((uint32_t)(ra & 0xfc), gsm_a_rr_cannel_request_6bit_est_cause_vals, &idx);
    if (str != NULL) {
        ref = ra & 0x03;
        goto found;
    }

    str = try_val_to_str_idx((uint32_t)ra, gsm_a_rr_cannel_request_8bit_est_cause_vals, &idx);
    if (str != NULL) {
        ref = 0;
        goto found;
    }

    if ((ra & 0xf9) == 0x60) {
        str = "Single block MBMS access; one block period on a PDCH is needed for transfer of MBMS SERVICE REQUEST message";
        ref = (ra & 0x6) >> 1;
        goto found;
    }

    if ((ra & 0xfb) == 0x61) {
        str = "Reserved for future use. An SDCCH may be allocated";
        ref = (ra & 0x4) >> 2;
        goto found;
    }

    return false;

found:
    if (NULL != cause) {
        *cause = str;
    }
    if (NULL != reference) {
        *reference = ref;
    }
    return true;
}

static void
ra_est_cause_convert(char *result, uint32_t ra)
{
    const char *str;

    if (ra_channel_request_parse(&str, NULL, ra)) {
        snprintf(result, ITEM_LABEL_LENGTH, "%s", str);
    } else {
        snprintf(result, ITEM_LABEL_LENGTH, "unknown ra %u", ra);
    }
}


static void
ra_rand_ref_convert(char *result, uint32_t ra)
{
    uint8_t reference;

    if (ra_channel_request_parse(NULL, &reference, ra)) {
        snprintf(result, ITEM_LABEL_LENGTH, "%d", reference);
    } else {
        snprintf(result, ITEM_LABEL_LENGTH, "unknown ra %u", ra);
    }
}


static int dissect_rach(tvbuff_t *tvb, packet_info *pinfo _U_, proto_tree *tree, void* data _U_)
{
    proto_item  *rach_item   = NULL;
    proto_tree  *rach_tree   = NULL;
    uint32_t     len;

    col_append_str(pinfo->cinfo, COL_INFO, "(RACH) Channel Request ");
    len = tvb_reported_length(tvb);
    rach_item = proto_tree_add_protocol_format(tree, proto_a_rach, tvb, 0, len, "GSM RACH");
    rach_tree = proto_item_add_subtree(rach_item, ett_rach_msg);
    proto_tree_add_item(rach_tree, hf_gsm_a_rr_ra_est_cause, tvb, 0, 1, ENC_BIG_ENDIAN);
    proto_tree_add_item(rach_tree, hf_gsm_a_rr_ra_rand_ref, tvb, 0, 1, ENC_BIG_ENDIAN);
    return tvb_captured_length(tvb);
}

void get_rr_msg_params(uint8_t oct, const char **msg_str, int *ett_tree, int *hf_idx, msg_fcn *msg_fcn_p)
{
    int idx;

    *msg_str = try_val_to_str_idx((uint32_t) (oct & DTAP_RR_IEI_MASK), gsm_a_dtap_msg_rr_strings, &idx);
    *hf_idx = hf_gsm_a_dtap_msg_rr_type;
    if (*msg_str != NULL) {
        *ett_tree = ett_gsm_dtap_msg_rr[idx];
        *msg_fcn_p  = dtap_msg_rr_fcn[idx];
    }

    return;
}
/* This is more or less a copy of the dissect_dtap() code just adding
 * L2 Pseudo Length decoding first
 * The code should probably be cleaned up.
 * The name CCCH might not be correct!
 */
static int
dissect_ccch(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, void* data)
{

    static gsm_a_tap_rec_t  tap_rec[4];
    static gsm_a_tap_rec_t *tap_p;
    static unsigned         tap_current = 0;

    void                  (*msg_fcn_p)(tvbuff_t *tvb, proto_tree *tree, packet_info *pinfo, uint32_t offset, unsigned len);
    uint8_t                 oct;
    uint8_t                 pd;
    uint32_t                offset;
    uint32_t                len;
    uint32_t                oct_1;
    proto_item             *ccch_item   = NULL;
    proto_tree             *ccch_tree   = NULL;
    proto_item             *oct_1_item  = NULL;
    proto_tree             *pd_tree     = NULL;
    const char             *msg_str;
    int                     ett_tree;
    int                     hf_idx;
    uint8_t                *gsmtap_channel_type = (uint8_t *)data;

    len = tvb_reported_length(tvb);

    if ((NULL != gsmtap_channel_type) && ((*gsmtap_channel_type & ~GSMTAP_CHANNEL_ACCH) == GSMTAP_CHANNEL_RACH)) {
        return dissect_rach(tvb, pinfo, tree, NULL);
    }

    if (len < 3){
        /*
         * too short to be CCCH
         */
        call_data_dissector(tvb, pinfo, tree);
        return tvb_captured_length(tvb);
    }

    col_append_str(pinfo->cinfo, COL_INFO, "(CCCH) ");
    /*
     * set tap record pointer
     */
    tap_current++;
    if (tap_current >= 4)
    {
        tap_current = 0;
    }
    tap_p = &tap_rec[tap_current];

    offset = 0;

    /* Skip pseudo hdr here - it is dissected later */
    offset += 1;

    /*
     * get protocol discriminator
     */
    oct_1 = tvb_get_uint8(tvb, offset++);

    if ((((oct_1 & DTAP_TI_MASK) >> 4) & DTAP_TIE_PRES_MASK) == DTAP_TIE_PRES_MASK){
        /*
         * even though we don't know if a TI should be in the message yet
         * we rely on the TI/SKIP indicator to be 0 to avoid taking this
         * octet
         */
        offset++;
    }

    oct = tvb_get_uint8(tvb, offset);

    pd = oct_1 & DTAP_PD_MASK;
    msg_str = NULL;
    ett_tree = -1;
    hf_idx = -1;
    msg_fcn_p = NULL;
    col_append_fstr(pinfo->cinfo, COL_INFO, "(%s) ",val_to_str(pinfo->pool, pd,gsm_a_pd_short_str_vals,"Unknown (%u)"));

    /*
     * octet 1
     */
    switch (pd){
    case 6:
        get_rr_msg_params(oct, &msg_str, &ett_tree, &hf_idx, &msg_fcn_p);
        break;

    default:
        /* XXX - hf_idx is still -1! this is a bug in the implementation, and I don't know how to fix it so simple return here */
        return tvb_captured_length(tvb);
    }

    /*
     * create the protocol tree
     */
    if (msg_str == NULL){
        ccch_item = proto_tree_add_protocol_format(tree, proto_a_ccch, tvb, 0, len,
                                                   "GSM CCCH - Message Type (0x%02x)",
                                                   oct);

        ccch_tree = proto_item_add_subtree(ccch_item, ett_ccch_msg);
    }else{
        ccch_item = proto_tree_add_protocol_format(tree, proto_a_ccch, tvb, 0, -1,
                                                   "GSM CCCH - %s", msg_str);

        ccch_tree = proto_item_add_subtree(ccch_item, ett_tree);

        col_append_fstr(pinfo->cinfo, COL_INFO, "%s ", msg_str);
    }

    /*  L2 Pseudo Length 10.5.2.19 */
    /* note: dissected out of sequence! */
    (void) elem_v(tvb, ccch_tree, pinfo, GSM_A_PDU_TYPE_RR, DE_RR_L2_PSEUDO_LEN, 0, NULL);

    oct_1_item = proto_tree_add_item(ccch_tree, hf_gsm_a_L3_protocol_discriminator, tvb, 1, 1, ENC_BIG_ENDIAN);
    pd_tree = proto_item_add_subtree(oct_1_item, ett_ccch_oct_1);

    proto_tree_add_item(pd_tree, hf_gsm_a_L3_protocol_discriminator, tvb, 1, 1, ENC_BIG_ENDIAN);

    proto_tree_add_item(pd_tree, hf_gsm_a_skip_ind, tvb, 1, 1, ENC_BIG_ENDIAN);

    /*
     * add DTAP message name
     */
    proto_tree_add_uint_format(ccch_tree, hf_idx, tvb, offset, 1, oct,
                               "Message Type: %s",msg_str ? msg_str : "(Unknown)");

    offset++;

    tap_p->pdu_type = GSM_A_PDU_TYPE_DTAP;
    tap_p->message_type = oct;
    tap_p->protocol_disc = (gsm_a_pd_str_e)pd;

    tap_queue_packet(gsm_a_tap, pinfo, tap_p);

    if (msg_str == NULL)
        return offset;

    if (offset >= len)
        return offset;

    /*
     * decode elements
     */
    if (msg_fcn_p == NULL){
        proto_tree_add_item(ccch_tree, hf_gsm_a_rr_message_elements, tvb, offset, len - offset, ENC_NA);
    }else{
        (*msg_fcn_p)(tvb, ccch_tree, pinfo, offset, len - offset);
    }
    return tvb_captured_length(tvb);
}


#define NUM_GSM_DTAP_EC_CCCH_MSG_RR array_length(gsm_a_dtap_msg_rr_ec_ccch_strings)
static int ett_gsm_dtap_ec_ccch_msg_rr[NUM_GSM_DTAP_EC_CCCH_MSG_RR];
static void (* const dtap_msg_rr_ec_ccch_fcn[])(tvbuff_t *tvb, proto_tree *tree, packet_info *pinfo _U_, uint32_t offset, unsigned len) = {
  dtap_rr_ec_imm_ass_type_2,                  /* EC-Immediate Assignment Type 2 */
  dtap_rr_ec_imm_ass_rej,                     /* EC-Immediate Assignment Reject */
  dtap_rr_ec_dummy,                           /* EC-Dummy */
  dtap_rr_ec_dl_ass,                          /* EC-Downlink Assignment */
  dtap_rr_ec_paging_req,                      /* EC-Paging Request */
};

static void
get_rr_ec_ccch_msg_params(uint8_t oct, const char **msg_str, int *ett_tree, int *hf_idx, msg_fcn *msg_fcn_p)
{
    int idx;

    *msg_str = try_val_to_str_idx((uint32_t) (oct & DTAP_RR_IEI_MASK), gsm_a_dtap_msg_rr_ec_ccch_strings, &idx);
    *hf_idx = hf_gsm_a_dtap_msg_rr_ec_ccch_type;
    if (*msg_str != NULL) {
        *ett_tree = ett_gsm_dtap_ec_ccch_msg_rr[idx];
        *msg_fcn_p  = dtap_msg_rr_ec_ccch_fcn[idx];
    }

    return;
}

static int
dissect_ec_ccch(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, void* data _U_)
{

    void                  (*msg_fcn_p)(tvbuff_t *tvb, proto_tree *tree, packet_info *pinfo, uint32_t offset, unsigned len);
    uint8_t                 msgtype;
    uint32_t                offset;
    uint32_t                len;
    proto_item             *ec_ccch_item   = NULL;
    proto_tree             *ec_ccch_tree   = NULL;
    const char             *msg_str;
    int                     ett_tree;
    int                     hf_idx;
    len = tvb_reported_length(tvb);

    col_append_str(pinfo->cinfo, COL_INFO, "(EC-CCCH) (RR) ");

    offset = 0;
    msgtype = tvb_get_bits8(tvb, offset, 4);

    msg_str = NULL;
    ett_tree = -1;
    hf_idx = -1;
    msg_fcn_p = NULL;

    get_rr_ec_ccch_msg_params(msgtype, &msg_str, &ett_tree, &hf_idx, &msg_fcn_p);

    /*
     * create the protocol tree
     */
    if (msg_str == NULL){
        ec_ccch_item = proto_tree_add_protocol_format(tree, proto_a_ec_ccch, tvb, 0, len,
                                                   "GSM EC-CCCH - Message Type (0x%02x)",
                                                   msgtype);

        ec_ccch_tree = proto_item_add_subtree(ec_ccch_item, ett_ec_ccch_msg);
    }else{
        ec_ccch_item = proto_tree_add_protocol_format(tree, proto_a_ec_ccch, tvb, 0, -1,
                                                   "GSM EC-CCCH - %s", msg_str);

        ec_ccch_tree = proto_item_add_subtree(ec_ccch_item, ett_tree);

        col_append_fstr(pinfo->cinfo, COL_INFO, "%s ", msg_str);
    }

    /*
     * add DTAP message name
     */
    proto_tree_add_uint_format(ec_ccch_tree, hf_idx, tvb, offset, 1, msgtype,
                               "Message Type: %s",msg_str ? msg_str : "(Unknown)");
    /*
     * decode elements
     */
    if (msg_fcn_p == NULL){
        proto_tree_add_item(ec_ccch_tree, hf_gsm_a_rr_message_elements, tvb, offset, len - offset, ENC_NA);
    }else{
        (*msg_fcn_p)(tvb, ec_ccch_tree, pinfo, offset, len - offset);
    }
    return tvb_captured_length(tvb);
}


const value_string gsm_a_rr_short_pd_msg_strings[] = {
    { 0x00, "System Information Type 10" },
    { 0x01, "Notification/FACCH" },
    { 0x02, "Uplink Free" },
    { 0x04, "Enhanced Measurement Report" },
    { 0x05, "Measurement Information" },
    { 0x06, "VBS/VGCS Reconfigure" },
    { 0x07, "VBS/VGCS Reconfigure2" },
    { 0x08, "VGCS Additional Information" },
    { 0x09, "VGCS SMS Information" },
    {    0, NULL }
};

#define NUM_GSM_SACCH_MSG_RR array_length(gsm_a_rr_short_pd_msg_strings)
static int ett_gsm_sacch_msg_rr[NUM_GSM_SACCH_MSG_RR];
static void (* const sacch_msg_rr_fcn[])(tvbuff_t *tvb, proto_tree *tree, packet_info *pinfo, uint32_t offset, unsigned len) = {
    NULL,                       /* System Information Type 10 */
    NULL,                       /* Notification/FACCH */
    NULL,                       /* Uplink Free  */
    sacch_rr_enh_meas_report,   /* Enhanced Measurement Report */
    sacch_rr_meas_info,         /* Measurement Information */
    NULL,                       /* VBS/VGCS Reconfigure */
    NULL,                       /* VBS/VGCS Reconfigure2 */
    NULL,                       /* VGCS Additional Information */
    NULL,                       /* VGCS SMS Information */
    NULL,                       /* NONE */
};

static void
get_rr_short_pd_msg_params(uint8_t mess_type, const char **msg_str, int *ett_tree, int *hf_idx, msg_fcn *msg_fcn_p)
{
    int idx;

    *msg_str = try_val_to_str_idx((uint32_t) mess_type, gsm_a_rr_short_pd_msg_strings, &idx);
    *hf_idx = hf_gsm_a_rr_short_pd_msg_type;
    if (*msg_str != NULL) {
        *ett_tree = ett_gsm_sacch_msg_rr[idx];
        *msg_fcn_p = sacch_msg_rr_fcn[idx];
    }
}

#if 0
const value_string short_protocol_discriminator_vals[] = {
    {0x0, "Radio Resources Management messages"},
    {  0, NULL }
};
#endif

static int
dissect_sacch(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, void* data _U_)
{
    static gsm_a_tap_rec_t  tap_rec[4];
    static gsm_a_tap_rec_t *tap_p;
    static unsigned         tap_current        = 0;

    void                  (*msg_fcn_p)(tvbuff_t *tvb, proto_tree *tree, packet_info *pinfo, uint32_t offset, unsigned len);
    uint8_t                 oct, short_pd, mess_type;
    uint32_t                offset, bit_offset = 0;
    uint32_t                len;
    proto_item             *sacch_item         = NULL;
    proto_tree             *sacch_tree         = NULL;
    const char             *msg_str;
    int                     ett_tree;
    int                     hf_idx;

    len = tvb_reported_length(tvb);

    col_append_str(pinfo->cinfo, COL_INFO, "(SACCH) ");

    /*
     * set tap record pointer
     */
    tap_current++;
    if (tap_current >= 4)
    {
        tap_current = 0;
    }
    tap_p = &tap_rec[tap_current];

    offset = 0;

    oct = tvb_get_uint8(tvb, offset);

    msg_str = NULL;
    ett_tree = -1;
    hf_idx = -1;
    msg_fcn_p = NULL;

    short_pd = (oct & 0x80) >> 7;
    mess_type = (oct & 0x7c) >> 2;

    if (short_pd == 0)
    {
        col_append_str(pinfo->cinfo, COL_INFO, "(RR) ");
        get_rr_short_pd_msg_params(mess_type, &msg_str, &ett_tree, &hf_idx, &msg_fcn_p);
    }
    else
    {
        col_append_str(pinfo->cinfo, COL_INFO, "(Unknown) ");
    }

    /*
     * create the protocol tree
     */
    if (msg_str == NULL){
        sacch_item = proto_tree_add_protocol_format(tree, proto_a_sacch, tvb, 0, len,
                                                    "GSM SACCH - Message Type (0x%02x)", mess_type);

        sacch_tree = proto_item_add_subtree(sacch_item, ett_sacch_msg);
    }else{
        sacch_item = proto_tree_add_protocol_format(tree, proto_a_sacch, tvb, 0, -1,
                                                    "GSM SACCH - %s", msg_str);

        sacch_tree = proto_item_add_subtree(sacch_item, ett_tree);

        col_append_fstr(pinfo->cinfo, COL_INFO, "%s ", msg_str);
    }

    if (short_pd == 0)
       proto_tree_add_bits_item(sacch_tree, hf_gsm_a_rr_short_pd, tvb, offset * 8 + bit_offset++, 1, ENC_BIG_ENDIAN);

    if (hf_idx <= 0)
        return 1;

    /*
     * add SACCH message name
     */
    proto_tree_add_bits_item(sacch_tree, hf_gsm_a_rr_short_pd_msg_type, tvb, offset * 8 + bit_offset, 5, ENC_BIG_ENDIAN);
    bit_offset += 5;

    proto_tree_add_bits_item(sacch_tree, hf_gsm_a_rr_short_l2_header, tvb, offset * 8 + bit_offset, 2, ENC_BIG_ENDIAN);
    offset++;

    tap_p->pdu_type = GSM_A_PDU_TYPE_SACCH;
    tap_p->message_type = mess_type;
    tap_p->protocol_disc = (gsm_a_pd_str_e)short_pd;

    tap_queue_packet(gsm_a_tap, pinfo, tap_p);

    if (msg_str == NULL)
        return offset;

    /*
     * decode elements
     */
    if (msg_fcn_p == NULL){
        proto_tree_add_item(sacch_tree, hf_gsm_a_rr_message_elements, tvb, offset, len - offset, ENC_NA);
    }else{
        (*msg_fcn_p)(tvb, sacch_tree, pinfo, offset, len - offset);
    }
    return tvb_captured_length(tvb);
}

/* Register the protocol with Wireshark */
void
proto_register_gsm_a_rr(void)
{
    unsigned i;
    unsigned last_offset;

    /* Setup list of header fields */

    static hf_register_info hf[] =
        {
            { &hf_gsm_a_dtap_msg_rr_type,
              { "DTAP Radio Resources Management Message Type", "gsm_a.dtap.msg_rr_type",
                FT_UINT8, BASE_HEX, VALS(gsm_a_dtap_msg_rr_strings), 0x0,
                NULL, HFILL }
            },
            { &hf_gsm_a_rr_elem_id,
              { "Element ID",   "gsm_a.rr.elem_id",
                FT_UINT8, BASE_HEX, NULL, 0,
                NULL, HFILL }
            },
            { &hf_gsm_a_rr_bcc,
              { "BCC","gsm_a.rr.bcc",
                FT_UINT8,BASE_DEC,  NULL, 0x07,
                NULL, HFILL }
            },
            { &hf_gsm_a_rr_ncc,
              { "NCC","gsm_a.rr.ncc",
                FT_UINT8,BASE_DEC,  NULL, 0x38,
                NULL, HFILL }
            },
            { &hf_gsm_a_rr_bcch_arfcn,
              { "BCCH ARFCN(RF channel number)","gsm_a.rr.bcch_arfcn",
                FT_UINT16,BASE_DEC,  NULL, 0x0,
                NULL, HFILL }
            },
            { &hf_gsm_a_rr_range_nb,
              { "Number of Ranges","gsm_a.rr.range_nb",
                FT_UINT8, BASE_DEC,  NULL, 0x0,
                NULL, HFILL }
            },
            { &hf_gsm_a_rr_range_lower,
              { "Range Lower","gsm_a.rr.range_lower",
                FT_UINT16, BASE_DEC,  NULL, 0x0,
                "ARFCN used as the lower limit of a range of frequencies to be used by the mobile station in cell selection (Range Lower)", HFILL }
            },
            { &hf_gsm_a_rr_range_higher,
              { "Range Higher","gsm_a.rr.range_higher",
                FT_UINT16, BASE_DEC,  NULL, 0x0,
                "ARFCN used as the higher limit of a range of frequencies to be used by the mobile station in cell selection (Range Higher)", HFILL }
            },
            { &hf_gsm_a_rr_ba_freq,
              { "BA Freq","gsm_a.rr.ba_freq",
                FT_UINT16, BASE_DEC,  NULL, 0x0,
                "ARFCN indicating a single frequency to be used by the mobile station in cell selection and reselection (BA Freq)", HFILL }
            },
            { &hf_gsm_a_rr_ho_ref_val,
              { "Handover reference value","gsm_a.rr.ho_ref_val",
                FT_UINT8,BASE_DEC,  NULL, 0x0,
                NULL, HFILL }
            },
            { &hf_gsm_a_rr_L2_pseudo_len,
              { "L2 Pseudo Length value","gsm_a.rr.l2_pseudo_len",
                FT_UINT8, BASE_DEC, NULL, 0xfc,
                NULL, HFILL }
            },
            { &hf_gsm_a_rr_ba_used,
              { "BA-USED","gsm_a.rr.ba_used",
                FT_UINT8, BASE_DEC,  NULL, 0x00,
                NULL, HFILL }
            },
            { &hf_gsm_a_rr_dtx_used,
              { "DTX-USED","gsm_a.rr.dtx_used",
                FT_BOOLEAN, BASE_NONE,  TFS(&gsm_a_rr_dtx_vals), 0x0,
                NULL, HFILL }
            },
            { &hf_gsm_a_rr_3g_ba_used,
              { "3G-BA-USED","gsm_a.rr.3g_ba_used",
                FT_UINT8, BASE_DEC, NULL, 0x00,
                NULL, HFILL }
            },
            { &hf_gsm_a_rr_meas_valid,
              { "MEAS-VALID","gsm_a.rr.meas_valid",
                FT_BOOLEAN, BASE_NONE,  TFS(&gsm_a_rr_mv_vals), 0x0,
                NULL, HFILL }
            },
            { &hf_gsm_a_rr_rxlev_full_serv_cell,
              { "RXLEV-FULL-SERVING-CELL","gsm_a.rr.rxlev_full_serv_cell",
                FT_UINT8,BASE_DEC|BASE_EXT_STRING,  &gsm_a_rr_rxlev_vals_ext, 0x00,
                NULL, HFILL }
            },
            { &hf_gsm_a_rr_rxlev_sub_serv_cell,
              { "RXLEV-SUB-SERVING-CELL","gsm_a.rr.rxlev_sub_serv_cell",
                FT_UINT8,BASE_DEC|BASE_EXT_STRING,  &gsm_a_rr_rxlev_vals_ext, 0x00,
                NULL, HFILL }
            },
            { &hf_gsm_a_rr_si23_ba_used,
              { "SI23_BA_USED","gsm_a.rr.si23_ba_used",
                FT_UINT8,BASE_DEC,  NULL, 0x00,
                NULL, HFILL }
            },
            { &hf_gsm_a_rr_rxqual_full_serv_cell,
              { "RXQUAL-FULL-SERVING-CELL","gsm_a.rr.rxqual_full_serv_cell",
                FT_UINT8, BASE_DEC, VALS(gsm_a_rr_rxqual_vals), 0x00,
                NULL, HFILL }
            },
            { &hf_gsm_a_rr_rxqual_sub_serv_cell,
              { "RXQUAL-SUB-SERVING-CELL","gsm_a.rr.rxqual_sub_serv_cell",
                FT_UINT8,BASE_DEC,  VALS(gsm_a_rr_rxqual_vals), 0x0,
                NULL, HFILL }
            },
            { &hf_gsm_a_rr_no_ncell_m,
              { "NO-NCELL-M","gsm_a.rr.no_ncell_m",
                FT_UINT8,BASE_DEC,  VALS(gsm_a_rr_ncell_vals), 0x00,
                NULL, HFILL }
            },
            { &hf_gsm_a_rr_rxlev_ncell,
              { "RXLEV-NCELL","gsm_a.rr.rxlev_ncell",
                FT_UINT8,BASE_DEC, NULL, 0x00,
                NULL, HFILL }
            },
            { &hf_gsm_a_rr_bcch_freq_ncell,
              { "BCCH-FREQ-NCELL","gsm_a.rr.bcch_freq_ncell",
                FT_UINT8,BASE_DEC, NULL, 0x00,
                NULL, HFILL }
            },
            { &hf_gsm_a_rr_bsic_ncell,
              { "BSIC-NCELL","gsm_a.rr.bsic_ncell",
                FT_UINT8,BASE_DEC, NULL, 0x00,
                NULL, HFILL }
            },
            { &hf_gsm_a_rr_mobile_time_difference,
              { "Mobile Timing Difference value (in half bit periods)","gsm_a.rr.mobile_time_difference",
                FT_UINT32,BASE_DEC, NULL, 0xFFFFF8,
                NULL, HFILL }
            },
            { &hf_gsm_a_rr_pow_cmd_atc,
              { "ATC","gsm_a.rr.pow_cmd_atc",
                FT_BOOLEAN,8,  TFS(&gsm_a_rr_pow_cmd_atc_value), 0x80,
                NULL, HFILL }
            },
            { &hf_gsm_a_rr_page_mode,
              { "Page Mode","gsm_a.rr.page_mode",
                FT_UINT8,BASE_DEC,  VALS(gsm_a_rr_page_mode_vals), 0x0F,
                NULL, HFILL }
            },
            { &hf_gsm_a_rr_dedicated_mode_or_tbf,
              { "Dedicated mode or TBF","gsm_a.rr.dedicated_mode_or_tbf",
                FT_UINT8,BASE_DEC,  VALS(gsm_a_rr_dedicated_mode_or_tbf_vals), 0xF0,
                NULL, HFILL }
            },
            { &hf_gsm_a_rr_pow_cmd_epc,
              { "EPC_mode","gsm_a.rr.pow_cmd_epc",
                FT_BOOLEAN,8,  TFS(&gsm_a_rr_pow_cmd_epc_value), 0x40,
                NULL, HFILL }
            },
            { &hf_gsm_a_rr_pow_cmd_fpcepc,
              { "FPC_EPC","gsm_a.rr.pow_cmd_fpcepc",
                FT_BOOLEAN,8,  TFS(&gsm_a_rr_pow_cmd_fpcepc_value), 0x20,
                NULL, HFILL }
            },
            { &hf_gsm_a_rr_pow_cmd_powlev,
              { "POWER LEVEL","gsm_a.rr.pow_cmd_pow",
                FT_UINT8,BASE_DEC,  NULL, 0x1f,
                NULL, HFILL }
            },
            { &hf_gsm_a_rr_sync_ind_nci,
              { "Normal cell indication(NCI)","gsm_a.rr.sync_ind_nci",
                FT_BOOLEAN,8,  TFS(&gsm_a_rr_sync_ind_nci_value), 0x08,
                NULL, HFILL }
            },
            { &hf_gsm_a_rr_sync_ind_rot,
              { "Report Observed Time Difference(ROT)","gsm_a.rr.sync_ind_rot",
                FT_BOOLEAN,8,  TFS(&sm_a_rr_sync_ind_rot_value), 0x04,
                NULL, HFILL }
            },
            { &hf_gsm_a_rr_sync_ind_si,
              { "Synchronization indication(SI)","gsm_a.rr.sync_ind_si",
                FT_UINT8,BASE_DEC,  VALS(gsm_a_rr_sync_ind_si_vals), 0x03,
                NULL, HFILL }
            },
            { &hf_gsm_a_rr_format_id,
              { "Format Identifier","gsm_a.rr.format_id",
                FT_UINT8,BASE_HEX,  VALS(gsm_a_rr_freq_list_format_id_vals), 0xce,
                NULL, HFILL }
            },
            { &hf_gsm_a_rr_format_id2,
              { "Format Identifier","gsm_a.rr.format_id",
                FT_UINT8,BASE_HEX,  VALS(gsm_a_rr_freq_list_format_id_vals), 0x8e,
                NULL, HFILL }
            },
            { &hf_gsm_a_rr_channel_mode,
              { "Channel Mode","gsm_a.rr.channel_mode",
                FT_UINT8,BASE_DEC,  VALS(gsm_a_rr_channel_mode_vals), 0x0,
                NULL, HFILL }
            },
            { &hf_gsm_a_rr_channel_mode2,
              { "Channel Mode 2","gsm_a.rr.channel_mode2",
                FT_UINT8,BASE_DEC,  VALS(gsm_a_rr_channel_mode2_vals), 0x0,
                NULL, HFILL }
            },
            { &hf_gsm_a_rr_sc,
              { "SC","gsm_a.rr.SC",
                FT_UINT8, BASE_DEC,  VALS(gsm_a_rr_sc_vals), 0x00,
                NULL, HFILL }
            },
            { &hf_gsm_a_rr_algorithm_id,
              { "Algorithm identifier","gsm_a.rr.algorithm_identifier",
                FT_UINT8,BASE_DEC,  VALS(gsm_a_rr_algorithm_identifier_vals), 0x00,
                NULL, HFILL }
            },
            { &hf_gsm_a_rr_cr,
              { "CR","gsm_a.rr.CR",
                FT_UINT8,BASE_DEC,  VALS(gsm_a_rr_cr_vals), 0x00,
                NULL, HFILL }
            },
            { &hf_gsm_a_rr_multirate_speech_ver,
              { "Multirate speech version","gsm_a.rr.multirate_speech_ver",
                FT_UINT8,BASE_DEC,  VALS(multirate_speech_ver_vals), 0xe0,
                NULL, HFILL }
            },
            { &hf_gsm_a_rr_NCSB,
              { "NSCB: Noise Suppression Control Bit","gsm_a.rr.NCSB",
                FT_UINT8,BASE_DEC,  VALS(NSCB_vals), 0x10,
                NULL, HFILL }
            },
            { &hf_gsm_a_rr_ICMI,
              { "ICMI: Initial Codec Mode Indicator","gsm_a.rr.ICMI",
                FT_UINT8,BASE_DEC,  VALS(ICMI_vals), 0x8,
                NULL, HFILL }
            },
            { &hf_gsm_a_rr_start_mode,
              { "Start Mode","gsm_a.rr.start_mode",
                FT_UINT8,BASE_DEC,  NULL, 0x3,
                NULL, HFILL }
            },
            { &hf_gsm_a_rr_timing_adv,
              { "Timing advance value","gsm_a.rr.timing_adv",
                FT_UINT8,BASE_DEC,  NULL, 0x0,
                NULL, HFILL }
            },
            { &hf_gsm_a_rr_time_diff,
              { "Time difference value","gsm_a.rr.time_diff",
                FT_UINT8,BASE_DEC,  NULL, 0x0,
                NULL, HFILL }
            },
            { &hf_gsm_a_rr_tlli,
              { "TLLI","gsm_a.rr.tlli",
                FT_UINT32,BASE_HEX,  NULL, 0x0,
                NULL, HFILL }
            },
            { &hf_gsm_a_rr_nri,
              { "NRI","gsm_a.rr.nri",
                FT_UINT8,BASE_DEC,  NULL, 0x0,
                NULL, HFILL }
            },
            { &hf_gsm_a_rr_target_mode,
              { "Target mode","gsm_a.rr.target_mode",
                FT_UINT8,BASE_DEC,  NULL, 0xc0,
                NULL, HFILL }
            },
            { &hf_gsm_a_rr_wait_indication,
              { "Wait Indication","gsm_a.rr.wait_indication",
                FT_UINT8,BASE_DEC,  NULL, 0x00,
                NULL, HFILL }
            },
            { &hf_gsm_a_rr_seq_code,
              { "Sequence Code","gsm_a.rr.seq_code",
                FT_UINT8, BASE_DEC, NULL, 0x00,
                NULL, HFILL }
            },

            { &hf_gsm_a_rr_group_cipher_key_number,
              { "Group cipher key number","gsm_a.rr.Group_cipher_key_number",
                FT_UINT8,BASE_DEC,  NULL, 0x3c,
                NULL, HFILL }
            },
            { &hf_gsm_a_rr_MBMS_broadcast,
              { "MBMS Broadcast","gsm_a.rr.MBMS_broadcast",
                FT_BOOLEAN,8,  TFS(&gsm_a_rr_MBMS_broadcast_value), 0x01,
                NULL, HFILL }
            },
            { &hf_gsm_a_rr_MBMS_multicast,
              { "MBMS Multicast","gsm_a.rr.MBMS_multicast",
                FT_BOOLEAN,8,  TFS(&gsm_a_rr_MBMS_multicast_value), 0x02,
                NULL, HFILL }
            },
            { &hf_gsm_a_rr_last_segment,
              { "Last Segment","gsm_a.rr.last_segment",
                FT_BOOLEAN,8,  TFS(&gsm_a_rr_last_segment_value), 0x01,
                NULL, HFILL }
            },
            { &hf_gsm_a_rr_carrier_ind,
              { "Carrier Indication","gsm_a.rr.carrier_ind",
                FT_BOOLEAN,8,  TFS(&gsm_a_rr_carrier_ind_value), 0x01,
                NULL, HFILL }
            },
            { &hf_gsm_a_rr_ra,
              { "Random Access Information (RA)", "gsm_a.rr.ra",
                FT_UINT8, BASE_DEC, NULL, 0x0,
                NULL, HFILL }
            },
            { &hf_gsm_a_rr_T1prim,
              { "T1'",             "gsm_a.rr.T1prim",
                FT_UINT8, BASE_DEC, NULL, 0xf8,
                NULL, HFILL }
            },
            { &hf_gsm_a_rr_T3,
              { "T3",              "gsm_a.rr.T3",
                FT_UINT16, BASE_DEC, NULL, 0x07e0,
                NULL, HFILL }
            },
            { &hf_gsm_a_rr_T2,
              { "T2",              "gsm_a.rr.T2",
                FT_UINT8, BASE_DEC, NULL, 0x1f,
                NULL, HFILL }
            },
            { &hf_gsm_a_rr_tbf_T1prim,
              { "T1' (TBF)",             "gsm_a.rr.tbf.T1prim",
                FT_UINT8, BASE_DEC, NULL, 0x00,
                NULL, HFILL }
            },
            { &hf_gsm_a_rr_tbf_T3,
              { "T3 (TBF)",              "gsm_a.rr.tbf.T3",
                FT_UINT16, BASE_DEC, NULL, 0x00,
                NULL, HFILL }
            },
            { &hf_gsm_a_rr_tbf_T2,
              { "T2 (TBF)",              "gsm_a.rr.tbf.T2",
                FT_UINT8, BASE_DEC, NULL, 0x00,
                NULL, HFILL }
            },
            { &hf_gsm_a_rr_rfn,
              { "RFN",             "gsm_a.rr.rfn",
                FT_UINT16, BASE_DEC, NULL, 0x0,
                "Reduced Frame Number", HFILL }
            },
            { &hf_gsm_a_rr_RR_cause,
              { "RR cause value","gsm_a.rr.RRcause",
                FT_UINT8,BASE_DEC,  VALS(gsm_a_rr_RR_cause_vals), 0x0,
                NULL, HFILL }
            },
            { &hf_gsm_a_rr_cm_cng_msg_req,
              { "CLASSMARK CHANGE","gsm_a.rr.cm_cng_msg_req",
                FT_BOOLEAN,8,  TFS(&gsm_a_msg_req_value), 0x80,
                NULL, HFILL }
            },
            { &hf_gsm_a_rr_utran_cm_cng_msg_req,
              { "UTRAN CLASSMARK CHANGE","gsm_a.rr.utran_cm_cng_msg_req",
                FT_UINT8,BASE_DEC,  VALS(gsm_a_rr_utran_cm_cng_msg_req_vals), 0x70,
                NULL, HFILL }
            },
            { &hf_gsm_a_rr_cdma2000_cm_cng_msg_req,
              { "CDMA2000 CLASSMARK CHANGE","gsm_a.rr.cdma2000_cm_cng_msg_req",
                FT_BOOLEAN,8,  TFS(&gsm_a_msg_req_value), 0x08,
                NULL, HFILL }
            },
            { &hf_gsm_a_rr_geran_iu_cm_cng_msg_req,
              { "GERAN IU MODE CLASSMARK CHANGE","gsm_a.rr.geran_iu_cm_cng_msg_req",
                FT_BOOLEAN,8,  TFS(&gsm_a_msg_req_value), 0x04,
                NULL, HFILL }
            },
            { &hf_gsm_a_rr_chnl_needed_ch1,
              { "Channel 1","gsm_a.rr.chnl_needed_ch1",
                FT_UINT8,BASE_DEC,  VALS(gsm_a_rr_channel_needed_vals), 0x00,
                NULL, HFILL }
            },
            { &hf_gsm_a_rr_chnl_needed_ch2,
              { "Channel 2","gsm_a.rr.chnl_needed_ch2",
                FT_UINT8,BASE_DEC,  VALS(gsm_a_rr_channel_needed_vals), 0x00,
                NULL, HFILL }
            },
            { &hf_gsm_a_rr_chnl_needed_ch3,
              { "Channel 3","gsm_a.rr.chnl_needed_ch3",
                FT_UINT8,BASE_DEC,  VALS(gsm_a_rr_channel_needed_vals), 0x00,
                NULL, HFILL }
            },
            { &hf_gsm_a_rr_chnl_needed_ch4,
              { "Channel 4","gsm_a.rr.chnl_needed_ch4",
                FT_UINT8,BASE_DEC,  VALS(gsm_a_rr_channel_needed_vals), 0x00,
                NULL, HFILL }
            },
            { &hf_gsm_a_rr_pkt_estab_cause,
              { "PACKET_ESTABLISHMENT_CAUSE","gsm_a.rr.pkt_estab_cause",
                FT_UINT8, BASE_DEC, VALS(gsm_a_rr_pkt_estab_cause_vals), 0x00,
                NULL, HFILL }
            },
            { &hf_gsm_a_rr_peak_throughput_class,
              { "PEAK_THROUGHPUT_CLASS","gsm_a.rr.peak_throughput_class",
                FT_UINT8, BASE_DEC, NULL, 0x00,
                NULL, HFILL }
            },
            { &hf_gsm_a_rr_radio_priority,
              { "RADIO_PRIORITY","gsm_a.rr.radio_priority",
                FT_UINT8, BASE_DEC, VALS(gsm_a_rr_radio_priority_vals), 0x00,
                NULL, HFILL }
            },
            { &hf_gsm_a_rr_llc_pdu_type,
              { "LLC_PDU_TYPE","gsm_a.rr.llc_pdu_type",
                FT_BOOLEAN, BASE_NONE, TFS(&gsm_a_rr_llc_pdu_type_value), 0x00,
                NULL, HFILL }
            },
            { &hf_gsm_a_rr_rlc_octet_count,
              { "RLC_OCTET_COUNT","gsm_a.rr.rlc_octet_count",
                FT_UINT16, BASE_DEC, NULL, 0x00,
                NULL, HFILL }
            },
            { &hf_gsm_a_rr_rlc_non_pers_mode_cap,
              { "RLC Non-persistent Mode Capability","gsm_a.rr.rlc_non_pers_mode_cap",
                FT_BOOLEAN, BASE_NONE, TFS(&tfs_supported_not_supported), 0x00,
                NULL, HFILL }
            },
            { &hf_gsm_a_rr_reduced_latency_cap,
              { "Reduced Latency Capability","gsm_a.rr.reduced_latency_cap",
                FT_BOOLEAN, BASE_NONE, TFS(&gsm_a_rr_reduced_latency_cap_value), 0x00,
                NULL, HFILL }
            },
            { &hf_gsm_a_rr_ul_egprs2,
              { "Uplink EGPRS2","gsm_a.rr.ul_egprs2",
                FT_UINT8, BASE_DEC, VALS(gsm_a_rr_egprs2_vals), 0x00,
                NULL, HFILL }
            },
            { &hf_gsm_a_rr_dl_egprs2,
              { "Downlink EGPRS2","gsm_a.rr.dl_egprs2",
                FT_UINT8, BASE_DEC, VALS(gsm_a_rr_egprs2_vals), 0x00,
                NULL, HFILL }
            },
            { &hf_gsm_a_rr_emst_ms_cap,
              { "EMST_MS_Capability","gsm_a.rr.emst_ms_cap",
                FT_BOOLEAN, BASE_NONE, TFS(&tfs_supported_not_supported), 0x00,
                NULL, HFILL }
            },
            { &hf_gsm_a_rr_suspension_cause,
              { "Suspension cause value","gsm_a.rr.suspension_cause",
                FT_UINT8,BASE_DEC,  VALS(gsm_a_rr_suspension_cause_vals), 0x0,
                NULL, HFILL }
            },
            { &hf_gsm_a_rr_apdu_id,
              { "APDU ID","gsm_a.rr.apdu_id",
                FT_UINT8,BASE_HEX,  VALS(gsm_a_rr_apdu_id_vals), 0x0f,
                NULL, HFILL }
            },
            { &hf_gsm_a_rr_apdu_flags_cr,
              { "C/R", "gsm_a.rr.apdu_flags_cr",
                FT_BOOLEAN, 8, TFS(&gsm_a_rr_apdu_flags_cr_value), 0x10,
                NULL, HFILL }
            },
            { &hf_gsm_a_rr_apdu_flags_fs,
              { "First Segment", "gsm_a.rr.apdu_flags_fs",
                FT_BOOLEAN, 8, TFS(&gsm_a_rr_apdu_flags_fs_value), 0x20,
                NULL, HFILL }
            },
            { &hf_gsm_a_rr_apdu_flags_ls,
              { "Last Segment", "gsm_a.rr.apdu_flags_ls",
                FT_BOOLEAN, 8, TFS(&gsm_a_rr_apdu_flags_ls_value), 0x40,
                NULL, HFILL }
            },
            { &hf_gsm_a_rr_apdu_data,
              { "APDU Data","gsm_a.rr.apdu_data",
                FT_BYTES, BASE_NONE, NULL, 0,
                NULL, HFILL }
            },
            { &hf_gsm_a_rr_set_of_amr_codec_modes_v1_b8,
              { "12,2 kbit/s codec rate", "gsm_a.rr.set_of_amr_codec_modes_v1b8",
                FT_BOOLEAN,8,  TFS(&gsm_a_rr_set_of_amr_codec_modes), 0x80,
                NULL, HFILL }
            },
            { &hf_gsm_a_rr_set_of_amr_codec_modes_v1_b7,
              { "10,2 kbit/s codec rate", "gsm_a.rr.set_of_amr_codec_modes_v1b7",
                FT_BOOLEAN,8,  TFS(&gsm_a_rr_set_of_amr_codec_modes), 0x40,
                NULL, HFILL }
            },
            { &hf_gsm_a_rr_set_of_amr_codec_modes_v1_b6,
              { "7,95 kbit/s codec rate", "gsm_a.rr.set_of_amr_codec_modes_v1b6",
                FT_BOOLEAN,8,  TFS(&gsm_a_rr_set_of_amr_codec_modes), 0x20,
                NULL, HFILL }
            },
            { &hf_gsm_a_rr_set_of_amr_codec_modes_v1_b5,
              { "7,40 kbit/s codec rate", "gsm_a.rr.set_of_amr_codec_modes_v1b5",
                FT_BOOLEAN,8,  TFS(&gsm_a_rr_set_of_amr_codec_modes), 0x10,
                NULL, HFILL }
            },
            { &hf_gsm_a_rr_set_of_amr_codec_modes_v1_b4,
              { "6,70 kbit/s codec rate", "gsm_a.rr.set_of_amr_codec_modes_v1b4",
                FT_BOOLEAN,8,  TFS(&gsm_a_rr_set_of_amr_codec_modes), 0x08,
                NULL, HFILL }
            },
            { &hf_gsm_a_rr_set_of_amr_codec_modes_v1_b3,
              { "5,90 kbit/s codec rate", "gsm_a.rr.set_of_amr_codec_modes_v1b3",
                FT_BOOLEAN,8,  TFS(&gsm_a_rr_set_of_amr_codec_modes), 0x04,
                NULL, HFILL }
            },
            { &hf_gsm_a_rr_set_of_amr_codec_modes_v1_b2,
              { "5,15 kbit/s codec rate", "gsm_a.rr.set_of_amr_codec_modes_v1b2",
                FT_BOOLEAN,8,  TFS(&gsm_a_rr_set_of_amr_codec_modes), 0x02,
                NULL, HFILL }
            },
            { &hf_gsm_a_rr_set_of_amr_codec_modes_v1_b1,
              { "4,75 kbit/s codec rate", "gsm_a.rr.set_of_amr_codec_modes_v1b1",
                FT_BOOLEAN,8,  TFS(&gsm_a_rr_set_of_amr_codec_modes), 0x01,
                NULL, HFILL }
            },
            { &hf_gsm_a_rr_set_of_amr_codec_modes_v2_b5,
              { "23,85 kbit/s codec rate", "gsm_a.rr.set_of_amr_codec_modes_v2b5",
                FT_BOOLEAN,8,  TFS(&gsm_a_rr_set_of_amr_codec_modes), 0x10,
                NULL, HFILL }
            },
            { &hf_gsm_a_rr_set_of_amr_codec_modes_v2_b4,
              { "15,85 kbit/s codec rate", "gsm_a.rr.set_of_amr_codec_modes_v2b4",
                FT_BOOLEAN,8,  TFS(&gsm_a_rr_set_of_amr_codec_modes), 0x08,
                NULL, HFILL }
            },
            { &hf_gsm_a_rr_set_of_amr_codec_modes_v2_b3,
              { "12,65 kbit/s codec rate", "gsm_a.rr.set_of_amr_codec_modes_v2b3",
                FT_BOOLEAN,8,  TFS(&gsm_a_rr_set_of_amr_codec_modes), 0x04,
                NULL, HFILL }
            },
            { &hf_gsm_a_rr_set_of_amr_codec_modes_v2_b2,
              { "8,85 kbit/s codec rate", "gsm_a.rr.set_of_amr_codec_modes_v2b2",
                FT_BOOLEAN,8,  TFS(&gsm_a_rr_set_of_amr_codec_modes), 0x02,
                NULL, HFILL }
            },
            { &hf_gsm_a_rr_set_of_amr_codec_modes_v2_b1,
              { "6,60 kbit/s codec rate", "gsm_a.rr.set_of_amr_codec_modes_v2b1",
                FT_BOOLEAN,8,  TFS(&gsm_a_rr_set_of_amr_codec_modes), 0x01,
                NULL, HFILL }
            },
            { &hf_gsm_a_rr_amr_threshold,
              { "AMR Threshold", "gsm_a.rr.amr_threshold",
                FT_UINT8, BASE_DEC|BASE_EXT_STRING,  &gsm_a_rr_amr_threshold_vals_ext, 0x00,
                NULL, HFILL }
            },
            { &hf_gsm_a_rr_amr_hysteresis,
              { "AMR Hysteresis", "gsm_a.rr.amr_hysteresis",
                FT_UINT8, BASE_DEC,  VALS(gsm_a_rr_amr_hysteresis_vals), 0x00,
                NULL, HFILL }
            },
            { &hf_gsm_a_rr_pwrc,
              { "PWRC", "gsm_a.rr.pwrc",
                FT_BOOLEAN, BASE_NONE,  NULL, 0x0,
                "Power Control Indicator (PWRC)", HFILL }
            },
            { &hf_gsm_a_rr_dtx_bcch,
              { "DTX (BCCH)", "gsm_a.rr.dtx_bcch",
                FT_UINT8, BASE_DEC,  VALS(gsm_a_rr_dtx_bcch_vals), 0x30,
                "Discontinuous Transmission (DTX-BCCH)", HFILL }
            },
            { &hf_gsm_a_rr_dtx_sacch,
              { "DTX (SACCH)", "gsm_a.rr.dtx_sacch",
                FT_UINT8, BASE_DEC,  VALS(gsm_a_rr_dtx_sacch_vals), 0x00,
                "Discontinuous Transmission (DTX-SACCH)", HFILL }
            },
            { &hf_gsm_a_rr_radio_link_timeout,
              { "Radio Link Timeout", "gsm_a.rr.radio_link_timeout",
                FT_UINT8, BASE_DEC,  VALS(gsm_a_rr_radio_link_timeout_vals), 0x0f,
                "Radio Link Timeout (s)", HFILL }
            },
            { &hf_gsm_a_rr_cell_reselect_hyst,
              { "Cell Reselection Hysteresis", "gsm_a.rr.cell_reselect_hyst",
                FT_UINT8, BASE_DEC,  NULL, 0xe0,
                "Cell Reselection Hysteresis (dB)", HFILL }
            },
            { &hf_gsm_a_rr_ms_txpwr_max_cch,
              { "MS TXPWR MAX CCH", "gsm_a.rr.ms_txpwr_max_cch",
                FT_UINT8, BASE_DEC,  NULL, 0x1f,
                NULL, HFILL }
            },
            { &hf_gsm_a_rr_acs,
              { "ACS", "gsm_a.rr.acs",
                FT_BOOLEAN, 8,  NULL, 0x80,
                "Additional Reselect Param Indicator (ACS)", HFILL }
            },
            { &hf_gsm_a_rr_neci,
              { "NECI", "gsm_a.rr.neci",
                FT_UINT8, BASE_DEC,  NULL, 0x40,
                "New Establishment Cause Indicator (NECI)", HFILL }
            },
            { &hf_gsm_a_rr_rxlev_access_min,
              { "RXLEV-ACCESS-MIN", "gsm_a.rr.rxlev_access_min",
                FT_UINT8, BASE_DEC|BASE_EXT_STRING,  &gsm_a_rr_rxlev_vals_ext, 0x3f,
                NULL, HFILL }
            },
            { &hf_gsm_a_rr_mscr,
              { "MSCR", "gsm_a.rr.mscr",
                FT_UINT8, BASE_DEC,  VALS(gsm_a_rr_mscr_vals), 0x80,
                "MSC Release Indicator (MSCR)", HFILL }
            },
            { &hf_gsm_a_rr_att,
              { "ATT", "gsm_a.rr.att",
                FT_UINT8, BASE_DEC,  VALS(gsm_a_rr_att_vals), 0x40,
                "Attach Indicator (ATT)", HFILL }
            },
            { &hf_gsm_a_rr_bs_ag_blks_res,
              { "BS_AG_BLKS_RES", "gsm_a.rr.bs_ag_blks_res",
                FT_UINT8, BASE_DEC,  NULL, 0x38,
                "Access Grant Reserved Blocks (BS_AG_BLKS_RES)", HFILL }
            },
            { &hf_gsm_a_rr_ccch_conf,
              { "CCCH-CONF", "gsm_a.rr.ccch_conf",
                FT_UINT8, BASE_DEC,  VALS(gsm_a_rr_ccch_conf_vals), 0x07,
                NULL, HFILL }
            },
            { &hf_gsm_a_rr_cbq3,
              { "CBQ3", "gsm_a.rr.cbq3",
                FT_UINT8, BASE_DEC,  VALS(gsm_a_rr_cbq3_vals), 0x00,
                "Cell Bar Qualify 3", HFILL }
            },
            { &hf_gsm_a_rr_bs_pa_mfrms,
              { "BS-PA-MFRMS", "gsm_a.rr.bs_pa_mfrms",
                FT_UINT8, BASE_DEC,  NULL, 0x07,
                NULL, HFILL }
            },
            { &hf_gsm_a_rr_t3212,
              { "T3212", "gsm_a.rr.t3212",
                FT_UINT8, BASE_DEC,  NULL, 0x00,
                "Periodic Update period (T3212) (deci-hours)", HFILL }
            },
            { &hf_gsm_a_rr_gsm_band,
              { "GSM Band", "gsm_a.rr.gsm_band",
                FT_UINT8, BASE_DEC,  VALS(gsm_a_rr_gsm_band_vals), 0x00,
                NULL, HFILL }
            },
            { &hf_gsm_a_rr_arfcn_first,
              { "ARFCN First", "gsm_a.rr.arfcn_first",
                FT_UINT16, BASE_DEC,  NULL, 0x00,
                NULL, HFILL }
            },
            { &hf_gsm_a_rr_band_offset,
              { "Band Offset", "gsm_a.rr.band_offset",
                FT_UINT16, BASE_DEC,  NULL, 0x00,
                NULL, HFILL }
            },
            { &hf_gsm_a_rr_arfcn_range,
              { "ARFCN Range", "gsm_a.rr.arfcn_range",
                FT_UINT8, BASE_DEC,  NULL, 0x00,
                NULL, HFILL }
            },
            { &hf_gsm_a_rr_lowest_arfcn,
              { "Lowest ARFCN", "gsm_a.rr.lowest_arfcn",
                FT_UINT8, BASE_DEC,  NULL, 0x7f,
                NULL, HFILL }
            },
            { &hf_gsm_a_rr_inc_skip_arfcn,
              { "Increment skip ARFCN", "gsm_a.rr.inc_skip_arfcn",
                FT_UINT8, BASE_DEC,  NULL, 0x00,
                NULL, HFILL }
            },
            { &hf_gsm_a_rr_gprs_resumption_ack,
              { "Ack", "gsm_a.rr.gprs_resumption_ack",
                FT_BOOLEAN, 8,  TFS(&gsm_a_rr_gprs_resumption_ack_value), 0x01,
                "GPRS Resumption Ack bit", HFILL }
            },
            { &hf_gsm_a_rr_ext_ind,
              { "EXT-IND", "gsm_a.rr.ext_ind",
                FT_UINT8, BASE_DEC,  VALS(gsm_a_rr_ext_ind_vals), 0x20,
                "Extension Indication (EXT-IND)", HFILL }
            },
            { &hf_gsm_a_rr_ba_ind,
              { "BA-IND", "gsm_a.rr.ba_ind",
                FT_UINT8, BASE_DEC,  NULL, 0x00,
                "BCCH Allocation Indication (BA-IND)", HFILL }
            },
            { &hf_gsm_a_rr_multiband_reporting,
              { "Multiband Reporting", "gsm_a.rr.multiband_reporting",
                FT_UINT8, BASE_DEC,  NULL, 0x00,
                "Number of cells to be reported in each band if Multiband Reporting", HFILL }
            },
            { &hf_gsm_a_rr_ncc_permitted,
              { "NCC Permitted", "gsm_a.rr.ncc_permitted",
                FT_UINT8, BASE_HEX,  NULL, 0x0,
                NULL, HFILL }
            },
            { &hf_gsm_a_rr_max_retrans,
              { "Max retrans", "gsm_a.rr.max_retrans",
                FT_UINT8, BASE_DEC,  VALS(gsm_a_rr_max_retrans_vals), 0xc0,
                "Maximum number of retransmissions", HFILL }
            },
            { &hf_gsm_a_rr_tx_integer,
              { "Tx-integer", "gsm_a.rr.tx_integer",
                FT_UINT8, BASE_DEC,  VALS(gsm_a_rr_tx_integer_vals), 0x3c,
                "Number of Slots to spread Transmission (Tx-integer)", HFILL }
            },
            { &hf_gsm_a_rr_cell_barr_access,
              { "CELL_BARR_ACCESS", "gsm_a.rr.cell_barr_access",
                FT_UINT8, BASE_DEC,  VALS(gsm_a_rr_cell_barr_access_vals), 0x02,
                "Cell Barred for Access (CELL_BARR_ACCESS)", HFILL }
            },
            { &hf_gsm_a_rr_re,
              { "RE", "gsm_a.rr.re",
                FT_UINT8, BASE_DEC,  VALS(gsm_a_rr_re_vals), 0x01,
                "Call re-establishment allowed (RE)", HFILL }
            },
            { &hf_gsm_a_rr_acc,
              { "ACC", "gsm_a.rr.acc",
                FT_UINT16, BASE_HEX,  NULL, 0x0,
                "Access Control Class N barred (ACC)", HFILL }
            },
            { &hf_gsm_a_rr_nch_position,
              { "NCH Position", "gsm_a.rr.nch_position",
                FT_UINT8, BASE_DEC,  VALS(gsm_a_rr_nch_position_vals), 0x00,
                NULL, HFILL }
            },
            { &hf_gsm_a_rr_si2ter_mp_change_mark,
              { "SI2ter Measurement Parameter Change Mark", "gsm_a.rr.si2ter_mp_change_mark",
                FT_UINT8, BASE_DEC,  NULL, 0x00,
                NULL, HFILL }
            },
            { &hf_gsm_a_rr_si2ter_3g_change_mark,
              { "SI2ter 3G Change Mark", "gsm_a.rr.si2ter_3g_change_mark",
                FT_UINT8, BASE_DEC,  NULL, 0x00,
                NULL, HFILL }
            },
            { &hf_gsm_a_rr_si2ter_index,
              { "SI2ter Index", "gsm_a.rr.si2ter_index",
                FT_UINT8, BASE_DEC,  NULL, 0x00,
                NULL, HFILL }
            },
            { &hf_gsm_a_rr_si2ter_count,
              { "SI2ter Count", "gsm_a.rr.si2ter_count",
                FT_UINT8, BASE_DEC,  NULL, 0x00,
                NULL, HFILL }
            },
            { &hf_gsm_a_rr_fdd_uarfcn,
              { "FDD UARFCN", "gsm_a.rr.fdd_uarfcn",
                FT_UINT16, BASE_DEC,  NULL, 0x0,
                NULL, HFILL }
            },
            { &hf_gsm_a_rr_bandwidth_fdd,
              { "Bandwidth FDD", "gsm_a.rr.bandwidth_fdd",
                FT_UINT8, BASE_DEC,  NULL, 0x0,
                NULL, HFILL }
            },
            { &hf_gsm_a_rr_tdd_uarfcn,
              { "TDD UARFCN", "gsm_a.rr.tdd_uarfcn",
                FT_UINT16, BASE_DEC,  NULL, 0x0,
                NULL, HFILL }
            },
            { &hf_gsm_a_rr_bandwidth_tdd,
              { "Bandwidth TDD", "gsm_a.rr.bandwidth_tdd",
                FT_UINT8, BASE_DEC,  NULL, 0x0,
                NULL, HFILL }
            },
            { &hf_gsm_a_rr_arfcn,
              { "ARFCN", "gsm_a.rr.arfcn",
                FT_UINT16, BASE_DEC,  NULL, 0x0,
                "Absolute Radio Frequency Channel Number (ARFCN)", HFILL }
            },
            { &hf_gsm_a_rr_bsic,
              { "BSIC", "gsm_a.rr.bsic",
                FT_UINT8, BASE_DEC,  NULL, 0x0,
                "Base Station Identify Code (BSIC)", HFILL }
            },
            { &hf_gsm_a_rr_qsearch_i,
              { "Qsearch I", "gsm_a.rr.qsearch_i",
                FT_UINT8, BASE_DEC,  VALS(gsm_a_rr_qsearch_x_vals), 0x0,
                "Search for 3G cells if signal level is below (0 7) or above (8 15) threshold (Qsearch I)", HFILL }
            },
            { &hf_gsm_a_rr_fdd_qoffset,
              { "FDD Qoffset", "gsm_a.rr.fdd_qoffset",
                FT_UINT8, BASE_DEC,  VALS(gsm_a_rr_xdd_qoffset_vals), 0x0,
                "Offset to RLA_C for cell re selection to FDD access technology (FDD Qoffset)", HFILL }
            },
            { &hf_gsm_a_rr_fdd_qmin,
              { "FDD Qmin", "gsm_a.rr.fdd_qmin",
                FT_UINT8, BASE_DEC,  VALS(gsm_a_rr_fdd_qmin_vals), 0x0,
                "Minimum threshold for Ec/No for UTRAN FDD cell re-selection (FDD Qmin)", HFILL }
            },
            { &hf_gsm_a_rr_tdd_qoffset,
              { "TDD Qoffset", "gsm_a.rr.tdd_qoffset",
                FT_UINT8, BASE_DEC,  VALS(gsm_a_rr_xdd_qoffset_vals), 0x0,
                "Offset to RLA_C for cell re selection to TDD access technology (TDD Qoffset)", HFILL }
            },
            { &hf_gsm_a_rr_fdd_qmin_offset,
              { "FDD Qmin Offset", "gsm_a.rr.fdd_qmin_offset",
                FT_UINT8, BASE_DEC,  VALS(gsm_a_rr_fdd_qmin_offset_vals), 0x0,
                "Offset to FDD Qmin value (FDD Qmin Offset)", HFILL }
            },
            { &hf_gsm_a_rr_fdd_rscpmin,
              { "FDD RSCPmin", "gsm_a.rr.fdd_rscpmin",
                FT_UINT8, BASE_DEC,  VALS(gsm_a_rr_fdd_rscpmin_vals), 0x0,
                "Minimum threshold of RSCP for UTRAN FDD cell re-selection (FDD RSCPmin)", HFILL }
            },
            { &hf_gsm_a_rr_3g_ba_ind,
              { "3G BA-IND", "gsm_a.rr.3g_ba_ind",
                FT_UINT8, BASE_DEC,  NULL, 0x0,
                "3G BCCH Allocation Indication (3G BA-IND)", HFILL }
            },
            { &hf_gsm_a_rr_mp_change_mark,
              { "Measurement Parameter Change Mark", "gsm_a.rr.mp_change_mark",
                FT_UINT8, BASE_DEC,  NULL, 0x0,
                NULL, HFILL }
            },
            { &hf_gsm_a_rr_si2quater_index,
              { "SI2quater Index", "gsm_a.rr.si2quater_index",
                FT_UINT8, BASE_DEC,  NULL, 0x00,
                NULL, HFILL }
            },
            { &hf_gsm_a_rr_si2quater_count,
              { "SI2quater Count", "gsm_a.rr.si2quater_count",
                FT_UINT8, BASE_DEC,  NULL, 0x00,
                NULL, HFILL }
            },
            { &hf_gsm_a_rr_si21_change_mark,
              { "SI21 Change Mark", "gsm_a.rr.si21_change_mark",
                FT_UINT8, BASE_DEC,  NULL, 0x00,
                NULL, HFILL }
            },
            { &hf_gsm_a_rr_si21_index,
              { "SI21 Index", "gsm_a.rr.si21_index",
                FT_UINT8, BASE_DEC,  NULL, 0x00,
                NULL, HFILL }
            },
            { &hf_gsm_a_rr_si21_count,
              { "SI21 Count", "gsm_a.rr.si21_count",
                FT_UINT8, BASE_DEC,  NULL, 0x00,
                NULL, HFILL }
            },
            { &hf_gsm_a_rr_eab_auth_mask,
              { "EAB Authorization Mask", "gsm_a.rr.eab_auth_mask",
                FT_UINT8, BASE_DEC,  NULL, 0x00,
                NULL, HFILL }
            },
            { &hf_gsm_a_eab_subcategory,
              { "EAB Subcategory", "gsm_a.rr.eab_subcategory",
                FT_UINT8, BASE_DEC,  NULL, 0x00,
                NULL, HFILL }
            },
            { &hf_gsm_a_rr_gsm_report_type,
              { "Report Type", "gsm_a.rr.gsm_report_type",
                FT_BOOLEAN, BASE_NONE,  TFS(&gsm_a_rr_gsm_report_type_value), 0x0,
                "Report type the MS shall use (Report Type)", HFILL }
            },
            { &hf_gsm_a_rr_serving_band_reporting,
              { "Serving Band Reporting", "gsm_a.rr.serving_band_reporting",
                FT_UINT8, BASE_DEC, NULL, 0x00,
                "Number of cells reported from the GSM serving frequency band (Serving Band Reporting)", HFILL }
            },
            { &hf_gsm_a_rr_frequency_scrolling,
              { "Frequency Scrolling", "gsm_a.rr.frequency_scrolling",
                FT_BOOLEAN, BASE_NONE, TFS(&gsm_a_rr_frequency_scrolling_value), 0x0,
                NULL, HFILL }
            },
            { &hf_gsm_a_rr_rep_priority,
              { "Rep Priority", "gsm_a.rr.rep_priority",
                FT_BOOLEAN, BASE_NONE, TFS(&gsm_a_rr_rep_priority_value), 0x0,
                "Reporting Priority", HFILL }
            },
            { &hf_gsm_a_rr_report_type,
              { "Report Type", "gsm_a.rr.report_type",
                FT_BOOLEAN, BASE_NONE, TFS(&gsm_a_rr_report_type_value), 0x0,
                NULL, HFILL }
            },
            { &hf_gsm_a_rr_reporting_rate,
              { "Reporting Rate", "gsm_a.rr.reporting_rate",
                FT_BOOLEAN, BASE_NONE, TFS(&gsm_a_rr_reporting_rate_value), 0x0,
                NULL, HFILL }
            },
            { &hf_gsm_a_rr_invalid_bsic_reporting,
              { "Invalid BSIC Reporting", "gsm_a.rr.invalid_bsic_reporting",
                FT_BOOLEAN, BASE_NONE, TFS(&gsm_a_rr_invalid_bsic_reporting_value), 0x0,
                NULL, HFILL }
            },
            { &hf_gsm_a_rr_scale_ord,
              { "Scale Ord", "gsm_a.rr.scale_ord",
                FT_UINT8, BASE_DEC, VALS(gsm_a_rr_scale_ord_vals), 0x00,
                "Offset used for the reported RXLEV values (Scale Ord)", HFILL }
            },
            { &hf_gsm_a_rr_900_reporting_offset,
              { "900 Reporting Offset", "gsm_a.rr.900_reporting_offset",
                FT_UINT8, BASE_DEC, VALS(gsm_a_rr_xxx_reporting_offset_vals), 0x00,
                "Offset to the reported value when prioritising the cells for reporting for GSM frequency band 900 (900 Reporting Offset)", HFILL }
            },
            { &hf_gsm_a_rr_900_reporting_threshold,
              { "900 Reporting Threshold", "gsm_a.rr.900_reporting_threshold",
                FT_UINT8, BASE_DEC, VALS(gsm_a_rr_gsm_reporting_threshold_vals), 0x00,
                "Apply priority reporting if the reported value is above threshold for GSM frequency band 900 (900 Reporting Threshold)", HFILL }
            },
            { &hf_gsm_a_rr_1800_reporting_offset,
              { "1800 Reporting Offset", "gsm_a.rr.1800_reporting_offset",
                FT_UINT8, BASE_DEC, VALS(gsm_a_rr_xxx_reporting_offset_vals), 0x00,
                "Offset to the reported value when prioritising the cells for reporting for GSM frequency band 1800 (1800 Reporting Offset)", HFILL }
            },
            { &hf_gsm_a_rr_1800_reporting_threshold,
              { "1800 Reporting Threshold", "gsm_a.rr.1800_reporting_threshold",
                FT_UINT8, BASE_DEC, VALS(gsm_a_rr_gsm_reporting_threshold_vals), 0x00,
                "Apply priority reporting if the reported value is above threshold for GSM frequency band 1800 (1800 Reporting Threshold)", HFILL }
            },
            { &hf_gsm_a_rr_400_reporting_offset,
              { "400 Reporting Offset", "gsm_a.rr.400_reporting_offset",
                FT_UINT8, BASE_DEC, VALS(gsm_a_rr_xxx_reporting_offset_vals), 0x00,
                "Offset to the reported value when prioritising the cells for reporting for GSM frequency band 400 (400 Reporting Offset)", HFILL }
            },
            { &hf_gsm_a_rr_400_reporting_threshold,
              { "400 Reporting Threshold", "gsm_a.rr.400_reporting_threshold",
                FT_UINT8, BASE_DEC, VALS(gsm_a_rr_gsm_reporting_threshold_vals), 0x00,
                "Apply priority reporting if the reported value is above threshold for GSM frequency band 400 (400 Reporting Threshold)", HFILL }
            },
            { &hf_gsm_a_rr_1900_reporting_offset,
              { "1900 Reporting Offset", "gsm_a.rr.1900_reporting_offset",
                FT_UINT8, BASE_DEC, VALS(gsm_a_rr_xxx_reporting_offset_vals), 0x00,
                "Offset to the reported value when prioritising the cells for reporting for GSM frequency band 1900 (1900 Reporting Offset)", HFILL }
            },
            { &hf_gsm_a_rr_1900_reporting_threshold,
              { "1900 Reporting Threshold", "gsm_a.rr.1900_reporting_threshold",
                FT_UINT8, BASE_DEC, VALS(gsm_a_rr_gsm_reporting_threshold_vals), 0x00,
                "Apply priority reporting if the reported value is above threshold for GSM frequency band 1900 (1900 Reporting Threshold)", HFILL }
            },
            { &hf_gsm_a_rr_850_reporting_offset,
              { "850 Reporting Offset", "gsm_a.rr.850_reporting_offset",
                FT_UINT8, BASE_DEC, VALS(gsm_a_rr_xxx_reporting_offset_vals), 0x00,
                "Offset to the reported value when prioritising the cells for reporting for GSM frequency band 850 (850 Reporting Offset)", HFILL }
            },
            { &hf_gsm_a_rr_850_reporting_threshold,
              { "850 Reporting Threshold", "gsm_a.rr.850_reporting_threshold",
                FT_UINT8, BASE_DEC, VALS(gsm_a_rr_gsm_reporting_threshold_vals), 0x00,
                "Apply priority reporting if the reported value is above threshold for GSM frequency band 850 (850 Reporting Threshold)", HFILL }
            },
            { &hf_gsm_a_rr_network_control_order,
              { "Network Control Order", "gsm_a.rr.network_control_order",
                FT_UINT8, BASE_DEC, VALS(gsm_a_rr_network_control_order_vals), 0x00,
                NULL, HFILL }
            },
            { &hf_gsm_a_rr_nc_non_drx_period,
              { "NC Non DRX Period", "gsm_a.rr.nc_non_drx_period",
                FT_UINT8, BASE_DEC, VALS(gsm_a_rr_nc_non_drx_period_vals), 0x00,
                NULL, HFILL }
            },
            { &hf_gsm_a_rr_nc_reporting_period_i,
              { "NC Reporting Period I", "gsm_a.rr.nc_reporting_period_i",
                FT_UINT8, BASE_DEC, VALS(gsm_a_rr_nc_reporting_period_x_vals), 0x00,
                "NC Reporting Period in Packet Idle mode (NC Reporting Period I)", HFILL }
            },
            { &hf_gsm_a_rr_nc_reporting_period_t,
              { "NC Reporting Period T", "gsm_a.rr.nc_reporting_period_t",
                FT_UINT8, BASE_DEC, VALS(gsm_a_rr_nc_reporting_period_x_vals), 0x00,
                "NC Reporting Period in Packet Transfer mode (NC Reporting Period T)", HFILL }
            },
            { &hf_gsm_a_rr_index_start_3g,
              { "Index Start 3G", "gsm_a.rr.index_start_3g",
                FT_UINT8, BASE_DEC, NULL, 0x00,
                NULL, HFILL }
            },
            { &hf_gsm_a_rr_absolute_index_start_emr,
              { "Absolute Index Start EMR", "gsm_a.rr.absolute_index_start_emr",
                FT_UINT8, BASE_DEC, NULL, 0x00,
                NULL, HFILL }
            },
            { &hf_gsm_a_rr_qsearch_c_initial,
              { "QSearch C Initial", "gsm_a.rr.qsearch_c_initial",
                FT_BOOLEAN, BASE_NONE, TFS(&gsm_a_rr_qsearch_c_initial_value), 0x0,
                "Qsearch value to be used in connected mode before Qsearch C is received (QSearch C Initial)", HFILL }
            },
            { &hf_gsm_a_rr_fdd_rep_quant,
              { "FDD Rep Quant", "gsm_a.rr.fdd_rep_quant",
                FT_BOOLEAN, BASE_NONE, TFS(&gsm_a_rr_fdd_rep_quant_value), 0x0,
                "FDD Reporting Quantity (FDD Rep Quant)", HFILL }
            },
            { &hf_gsm_a_rr_fdd_multirat_reporting,
              { "FDD Multirat Reporting", "gsm_a.rr.fdd_multirat_reporting",
                FT_UINT8, BASE_DEC, NULL, 0x00,
                "Number of cells from the FDD access technology that shall be included in the list of strongest cells or in the measurement report (FDD Multirat Reporting)", HFILL }
            },
            { &hf_gsm_a_rr_tdd_multirat_reporting,
              { "TDD Multirat Reporting", "gsm_a.rr.tdd_multirat_reporting",
                FT_UINT8, BASE_DEC, NULL, 0x00,
                "Number of cells from the TDD access technology that shall be included in the list of strongest cells or in the measurement report (TDD Multirat Reporting)", HFILL }
            },
            { &hf_gsm_a_rr_qsearch_p,
              { "Qsearch P", "gsm_a.rr.qsearch_p",
                FT_UINT8, BASE_DEC,  VALS(gsm_a_rr_qsearch_x_vals), 0x00,
                "Search for 3G cells if signal level below threshold (Qsearch P)", HFILL }
            },
            { &hf_gsm_a_rr_3g_search_prio,
              { "3G Search Prio (ignored in Rel-8)", "gsm_a.rr.3g_search_prio",
                FT_BOOLEAN, BASE_NONE,  TFS(&gsm_a_rr_3g_search_prio_value), 0x0,
                NULL, HFILL }
            },
            { &hf_gsm_a_rr_fdd_reporting_offset,
              { "FDD Reporting Offset", "gsm_a.rr.fdd_reporting_offset",
                FT_UINT8, BASE_DEC,  VALS(gsm_a_rr_xxx_reporting_offset_vals), 0x00,
                "Offset to the reported value when prioritising the cells for reporting for FDD access technology (FDD Reporting Offset)", HFILL }
            },
            { &hf_gsm_a_rr_fdd_reporting_threshold_rscp,
              { "FDD Reporting Threshold RSCP", "gsm_a.rr.fdd_reporting_threshold_rscp",
                FT_UINT8, BASE_DEC,  VALS(gsm_a_rr_wcdma_rscp_reporting_threshold_vals), 0x00,
                "Apply priority reporting if the reported value is above threshold for FDD access technology (FDD Reporting Threshold)", HFILL }
            },
            { &hf_gsm_a_rr_fdd_reporting_threshold_ecn0,
              { "FDD Reporting Threshold EcN0", "gsm_a.rr.fdd_reporting_threshold_ecn0",
                FT_UINT8, BASE_DEC,  VALS(gsm_a_rr_wcdma_ecn0_reporting_threshold_vals), 0x00,
                "Apply priority reporting if the reported value is above threshold for FDD access technology (FDD Reporting Threshold)", HFILL }
            },
            { &hf_gsm_a_rr_tdd_reporting_offset,
              { "TDD Reporting Offset", "gsm_a.rr.tdd_reporting_offset",
                FT_UINT8, BASE_DEC,  VALS(gsm_a_rr_xxx_reporting_offset_vals), 0x00,
                "Offset to the reported value when prioritising the cells for reporting for TDD access technology (TDD Reporting Offset)", HFILL }
            },
            { &hf_gsm_a_rr_tdd_reporting_threshold_rscp,
              { "TDD Reporting Threshold RSCP", "gsm_a.rr.tdd_reporting_threshold_rscp",
                FT_UINT8, BASE_DEC,  VALS(gsm_a_rr_wcdma_rscp_reporting_threshold_vals), 0x00,
                "Apply priority reporting if the reported value is above threshold for TDD access technology (TDD Reporting Threshold)", HFILL }
            },
            { &hf_gsm_a_rr_tdd_reporting_threshold_ecn0,
              { "TDD Reporting Threshold EcN0", "gsm_a.rr.tdd_reporting_threshold_ecn0",
                FT_UINT8, BASE_DEC,  VALS(gsm_a_rr_wcdma_ecn0_reporting_threshold_vals), 0x00,
                "Apply priority reporting if the reported value is above threshold for TDD access technology (TDD Reporting Threshold)", HFILL }
            },
            { &hf_gsm_a_rr_fdd_reporting_threshold_2,
              { "FDD Reporting Threshold 2", "gsm_a.rr.fdd_reporting_threshold_2",
                FT_UINT8, BASE_DEC,  NULL, 0x00,
                "Reporting threshold for the CPICH parameter (Ec/No or RSCP) that is not reported according to FDD_REP_QUANT (FDD Reporting Threshold 2)", HFILL }
            },
            { &hf_gsm_a_rr_3g_ccn_active,
              { "3G CCN Active", "gsm_a.rr.3g_ccn_active",
                FT_BOOLEAN, BASE_NONE,  TFS(&gsm_a_rr_3g_ccn_active_value), 0x0,
                NULL, HFILL }
            },
            { &hf_gsm_a_rr_700_reporting_offset,
              { "700 Reporting Offset", "gsm_a.rr.700_reporting_offset",
                FT_UINT8, BASE_DEC, VALS(gsm_a_rr_xxx_reporting_offset_vals), 0x00,
                "Offset to the reported value when prioritising the cells for reporting for GSM frequency band 700 (700 Reporting Offset)", HFILL }
            },
            { &hf_gsm_a_rr_700_reporting_threshold,
              { "700 Reporting Threshold", "gsm_a.rr.700_reporting_threshold",
                FT_UINT8, BASE_DEC, VALS(gsm_a_rr_gsm_reporting_threshold_vals), 0x00,
                "Apply priority reporting if the reported value is above threshold for GSM frequency band 700 (700 Reporting Threshold)", HFILL }
            },
            { &hf_gsm_a_rr_810_reporting_offset,
              { "810 Reporting Offset", "gsm_a.rr.810_reporting_offset",
                FT_UINT8, BASE_DEC, VALS(gsm_a_rr_xxx_reporting_offset_vals), 0x00,
                "Offset to the reported value when prioritising the cells for reporting for GSM frequency band 810 (810 Reporting Offset)", HFILL }
            },
            { &hf_gsm_a_rr_810_reporting_threshold,
              { "810 Reporting Threshold", "gsm_a.rr.810_reporting_threshold",
                FT_UINT8, BASE_DEC, VALS(gsm_a_rr_gsm_reporting_threshold_vals), 0x00,
                "Apply priority reporting if the reported value is above threshold for GSM frequency band 810 (810 Reporting Threshold)", HFILL }
            },
            { &hf_gsm_a_rr_cbq,
              { "CBQ", "gsm_a.rr.cbq",
                FT_UINT8, BASE_DEC,  NULL, 0x00,
                "Cell Bar Qualify", HFILL }
            },
            { &hf_gsm_a_rr_cell_reselect_offset,
              { "Cell Reselect Offset", "gsm_a.rr.cell_reselect_offset",
                FT_UINT8, BASE_DEC|BASE_EXT_STRING,  &gsm_a_rr_cell_reselect_offset_vals_ext, 0x00,
                "Offset to the C2 reselection criterion (Cell Reselect Offset)", HFILL }
            },
            { &hf_gsm_a_rr_temporary_offset,
              { "Temporary Offset", "gsm_a.rr.temporary_offset",
                FT_UINT8, BASE_DEC, VALS(gsm_a_rr_temporary_offset_vals), 0x0,
                "Negative offset to C2 for the duration of Penalty Time (Temporary Offset)", HFILL }
            },
            { &hf_gsm_a_rr_penalty_time,
              { "Penalty Time", "gsm_a.rr.penalty_time",
                FT_UINT8, BASE_DEC, VALS(gsm_a_rr_penalty_time_vals), 0x0,
                "Duration for which the temporary offset is applied (Penalty Time)", HFILL }
            },
            { &hf_gsm_a_rr_gprs_ra_colour,
              { "GPRS RA Colour", "gsm_a.rr.gprs_ra_colour",
                FT_UINT8, BASE_DEC, NULL, 0x0,
                NULL, HFILL }
            },
            { &hf_gsm_a_rr_si13_position,
              { "SI13 Position", "gsm_a.rr.si13_position",
                FT_UINT8, BASE_DEC, VALS(gsm_a_rr_si13_position_vals), 0x0,
                NULL, HFILL }
            },
            { &hf_gsm_a_rr_power_offset,
              { "Power Offset", "gsm_a.rr.power_offset",
                FT_UINT8, BASE_DEC, VALS(gsm_a_rr_power_offset_vals), 0x0,
                "Power offset used in conjunction with the MS TXPWR MAX CCH parameter by the class 3 DCS 1800 MS (Power Offset)", HFILL }
            },
            { &hf_gsm_a_rr_si2quater_position,
              { "SI2quater Position", "gsm_a.rr.si2quater_position",
                FT_BOOLEAN, BASE_NONE, TFS(&gsm_a_rr_si2quater_position_value), 0x0,
                NULL, HFILL }
            },
            { &hf_gsm_a_rr_si13alt_position,
              { "SI13alt Position", "gsm_a.rr.si13alt_position",
                FT_BOOLEAN, BASE_NONE, TFS(&gsm_a_rr_si13alt_position_value), 0x0,
                NULL, HFILL }
            },
            { &hf_gsm_a_rr_si21_position,
              { "SI21 Position", "gsm_a.rr.si21_position",
                FT_BOOLEAN, BASE_NONE, TFS(&gsm_a_rr_si21_position_value), 0x0,
                NULL, HFILL }
            },
            { &hf_gsm_a_rr_prio_thr,
              { "Prio Thr", "gsm_a.rr.prio_thr",
                FT_UINT8, BASE_DEC, VALS(gsm_a_rr_prio_thr_vals), 0x0,
                "Prio signal strength threshold is related to RXLEV ACCESS_MIN (Prio Thr)", HFILL }
            },
            { &hf_gsm_a_rr_lsa_offset,
              { "LSA Offset", "gsm_a.rr.lsa_offset",
                FT_UINT8, BASE_DEC, VALS(gsm_a_rr_lsa_offset_vals), 0x0,
                "Offset to be used for LSA cell re selection between cells with the same LSA priorities (LSA Offset)", HFILL }
            },
            { &hf_gsm_a_rr_cell_id,
              { "Cell Identity", "gsm_a.rr.cell_id",
                FT_UINT16, BASE_HEX_DEC, 0, 0x0,
                NULL, HFILL }
            },
            { &hf_gsm_a_rr_paging_channel_restructuring,
              { "Paging Channel Restructuring", "gsm_a.rr.paging_channel_restructuring",
                FT_BOOLEAN, BASE_NONE, TFS(&gsm_a_rr_paging_channel_restructuring_value), 0x0,
                NULL, HFILL }
            },
            { &hf_gsm_a_rr_nln_sacch,
              { "NLN (SACCH)", "gsm_a.rr.nln_sacch",
                FT_UINT8, BASE_DEC, NULL, 0x0,
                NULL, HFILL }
            },
            { &hf_gsm_a_rr_nln_status_sacch,
              { "NLN Status (SACCH)", "gsm_a.rr.nln_status_sacch",
                FT_UINT8, BASE_DEC, NULL, 0x0,
                NULL, HFILL }
            },
            { &hf_gsm_a_rr_nln_pch,
              { "NLN (PCH)", "gsm_a.rr.nln_pch",
                FT_UINT8, BASE_DEC, NULL, 0x0,
                NULL, HFILL }
            },
            { &hf_gsm_a_rr_nln_status_pch,
              { "NLN Status (PCH)", "gsm_a.rr.nln_status_pch",
                FT_UINT8, BASE_DEC, NULL, 0x0,
                NULL, HFILL }
            },
            { &hf_gsm_a_rr_vbs_vgcs_inband_notifications,
              { "Inband Notifications", "gsm_a.rr.vbs_vgcs_inband_notifications",
                FT_BOOLEAN, BASE_NONE, TFS(&gsm_a_rr_vbs_vgcs_inband_notifications_value), 0x0,
                NULL, HFILL }
            },
            { &hf_gsm_a_rr_vbs_vgcs_inband_pagings,
              { "Inband Pagings", "gsm_a.rr.vbs_vgcs_inband_pagings",
                FT_BOOLEAN, BASE_NONE, TFS(&gsm_a_rr_vbs_vgcs_inband_pagings_value), 0x0,
                NULL, HFILL }
            },
            { &hf_gsm_a_rr_rac,
              { "RAC", "gsm_a.rr.rac",
                FT_UINT8, BASE_DEC, NULL, 0x0,
                "Routeing Area Code", HFILL }
            },
            { &hf_gsm_a_rr_max_lapdm,
              { "Max LAPDm", "gsm_a.rr.max_lapdm",
                FT_UINT8, BASE_DEC, VALS(gsm_a_rr_max_lapdm_vals), 0x0,
                "Maximum number of LAPDm frames on which a layer 3 can be segmented into and be sent on the main DCCH (Max LAPDm)", HFILL }
            },
            { &hf_gsm_a_rr_gprs_ms_txpwr_max_ccch,
              { "GPRS MS TxPwr Max CCH", "gsm_a.rr.gprs_ms_txpwr_max_cch",
                FT_UINT8, BASE_DEC,  NULL, 0x00,
                NULL, HFILL }
            },
            { &hf_gsm_a_rr_dedicated_mode_mbms_notification_support,
              { "Dedicated Mode MBMS Notification Support", "gsm_a.rr.dedicated_mode_mbms_notification_support",
                FT_BOOLEAN, BASE_NONE, TFS(&gsm_a_rr_dedicated_mode_mbms_notification_support_value), 0x0,
                NULL, HFILL }
            },
            { &hf_gsm_a_rr_mnci_support,
              { "MNCI Support", "gsm_a.rr.mnci_support",
                FT_BOOLEAN, BASE_NONE, TFS(&gsm_a_rr_mnci_support_value), 0x0,
                "MBMS Neighbouring Cell Information Support (MNCI Support)", HFILL }
            },
            { &hf_gsm_a_rr_amr_config,
              { "AMR Configuration", "gsm_a.rr.amr_config",
                FT_UINT8, BASE_DEC, NULL, 0x0,
                NULL, HFILL }
            },
            { &hf_gsm_a_rr_bcch_change_mark,
              { "BCCH Change Mark", "gsm_a.rr.bcch_change_mark",
                FT_UINT8, BASE_DEC, NULL, 0x0,
                NULL, HFILL }
            },
            { &hf_gsm_a_rr_si_change_field,
              { "SI Change Field", "gsm_a.rr.si_change_field",
                FT_UINT8, BASE_DEC, VALS(gsm_a_rr_si_change_field_vals), 0x0,
                NULL, HFILL }
            },
            { &hf_gsm_a_rr_si13_change_mark,
              { "SI13 Change Mark", "gsm_a.rr.si13_change_mark",
                FT_UINT8, BASE_DEC, NULL, 0x0,
                NULL, HFILL }
            },
            { &hf_gsm_a_rr_hsn,
              { "HSN", "gsm_a.rr.hsn",
                FT_UINT8, BASE_DEC, NULL, 0x0,
                "Hopping Sequence Number (HSN)", HFILL }
            },
            { &hf_gsm_a_rr_rfl_number,
              { "RFL Number", "gsm_a.rr.rfl_number",
                FT_UINT8, BASE_DEC, NULL, 0x0,
                "Radio Frequency List Number (RFL Number)", HFILL }
            },
            { &hf_gsm_a_rr_arfcn_index,
              { "ARFCN Index", "gsm_a.rr.arfcn_index",
                FT_UINT8, BASE_DEC, NULL, 0x0,
                NULL, HFILL }
            },
            { &hf_gsm_a_rr_ma_length,
              { "MA Length", "gsm_a.rr.ma_length",
                FT_UINT8, BASE_DEC, NULL, 0x0,
                "Mobile Allocation Length (MA Length)", HFILL }
            },
            { &hf_gsm_a_rr_psi1_repeat_period,
              { "PSI1 Repeat Period", "gsm_a.rr.psi1_repeat_period",
                FT_UINT8, BASE_DEC, VALS(gsm_a_rr_psi1_repeat_period_vals), 0x0,
                NULL, HFILL }
            },
            { &hf_gsm_a_rr_pbcch_pb,
              { "Pb", "gsm_a.rr.pbcch_pb",
                FT_UINT8, BASE_DEC, VALS(gsm_a_rr_pbcch_pb_vals), 0x0,
                "Power reduction on PBCCH/PCCCH (Pb)", HFILL }
            },
            { &hf_gsm_a_rr_pbcch_tsc,
              { "TSC", "gsm_a.rr.pbcch_tsc",
                FT_UINT8, BASE_DEC, NULL, 0x0,
                "Training Sequence Code for PBCCH (TSC)", HFILL }
            },
            { &hf_gsm_a_rr_pbcch_tn,
              { "TN", "gsm_a.rr.pbcch_tn",
                FT_UINT8, BASE_DEC, NULL, 0x0,
                "Timeslot Number for PCCH (TN)", HFILL }
            },
            { &hf_gsm_a_rr_spgc_ccch_sup,
              { "SPGC CCCH Sup", "gsm_a.rr.spgc_ccch_sup",
                FT_BOOLEAN, BASE_NONE, TFS(&gsm_a_rr_spgc_ccch_sup_value), 0x0,
                "Split PG Cycle Code on CCCH Support (SPGC CCCH Sup)", HFILL }
            },
            { &hf_gsm_a_rr_priority_access_thr,
              { "Priority Access Thr", "gsm_a.rr.priority_access_thr",
                FT_UINT8, BASE_DEC, VALS(gsm_a_rr_priority_access_thr_vals), 0x0,
                "Priority Access Threshold for packet access (Priority Access Thr)", HFILL }
            },
            { &hf_gsm_a_rr_nmo,
              { "NMO", "gsm_a.rr.nmo",
                FT_UINT8, BASE_DEC, VALS(gsm_a_rr_nmo_vals), 0x0,
                "Network mode of Operation (NMO)", HFILL }
            },
            { &hf_gsm_a_rr_t3168,
              { "T3168", "gsm_a.rr.t3168",
                FT_UINT8, BASE_DEC, VALS(gsm_a_rr_t3168_vals), 0x0,
                NULL, HFILL }
            },
            { &hf_gsm_a_rr_t3192,
              { "T3192", "gsm_a.rr.t3192",
                FT_UINT8, BASE_DEC, VALS(gsm_a_rr_t3192_vals), 0x0,
                NULL, HFILL }
            },
            { &hf_gsm_a_rr_drx_timer_max,
              { "DRX Timer Max", "gsm_a.rr.drx_timer_max",
                FT_UINT8, BASE_DEC, VALS(gsm_a_rr_drx_timer_max_vals), 0x0,
                "Discontinuous Reception Timer Max (DRX Timer Max)", HFILL }
            },
            { &hf_gsm_a_rr_access_burst_type,
              { "Access Burst Type", "gsm_a.rr.access_burst_type",
                FT_BOOLEAN, BASE_NONE, TFS(&gsm_a_rr_access_burst_type_value), 0x0,
                "Format used in the PACKET CHANNEL REQUEST message, the PS HANDOVER ACCESS message, the PTCCH uplink block and in the PACKET CONTROL ACKNOWLEDGMENT message (Access Burst Type)", HFILL }
            },
            { &hf_gsm_a_rr_control_ack_type,
              { "Control Ack Type", "gsm_a.rr.control_ack_type",
                FT_BOOLEAN, BASE_NONE, TFS(&gsm_a_rr_control_ack_type_value), 0x0,
                "Default format of the PACKET CONTROL ACKNOWLEDGMENT message (Control Ack Type)", HFILL }
            },
            { &hf_gsm_a_rr_bs_cv_max,
              { "BS CV Max", "gsm_a.rr.bs_cv_max",
                FT_UINT8, BASE_DEC, NULL, 0x0,
                "Base Station Countdown Value Maximum (BS CV Max)", HFILL }
            },
            { &hf_gsm_a_rr_pan_dec,
              { "PAN Dec", "gsm_a.rr.pan_dec",
                FT_UINT8, BASE_DEC, NULL, 0x0,
                NULL, HFILL }
            },
            { &hf_gsm_a_rr_pan_inc,
              { "PAN Inc", "gsm_a.rr.pan_inc",
                FT_UINT8, BASE_DEC, NULL, 0x0,
                NULL, HFILL }
            },
            { &hf_gsm_a_rr_pan_max,
              { "PAN Max", "gsm_a.rr.pan_max",
                FT_UINT8, BASE_DEC, VALS(gsm_a_rr_pan_max_vals), 0x0,
                NULL, HFILL }
            },
            { &hf_gsm_a_rr_egprs_packet_channel_request,
              { "EGPRS Packet Channel Request", "gsm_a.rr.egprs_packet_channel_request",
                FT_BOOLEAN, BASE_NONE, TFS(&gsm_a_rr_egprs_packet_channel_request_value), 0x0,
                NULL, HFILL }
            },
            { &hf_gsm_a_rr_bep_period,
              { "BEP Period", "gsm_a.rr.bep_period",
                FT_UINT8, BASE_DEC, VALS(gsm_a_rr_bep_period_vals), 0x0,
                NULL, HFILL }
            },
            { &hf_gsm_a_rr_pfc_feature_mode,
              { "PFC Feature Mode", "gsm_a.rr.pfc_feature_mode",
                FT_BOOLEAN, BASE_NONE, TFS(&gsm_a_rr_pfc_feature_mode_value), 0x0,
                "Packet Flow Context Feature Mode (PFC Feature Mode)", HFILL }
            },
            { &hf_gsm_a_rr_dtm_support,
              { "DTM Support", "gsm_a.rr.dtm_support",
                FT_BOOLEAN, BASE_NONE, TFS(&gsm_a_rr_dtm_support_value), 0x0,
                "Dual Transfer Mode Support (DTM Support)", HFILL }
            },
            { &hf_gsm_a_rr_bss_paging_coordination,
              { "BSS Paging Coordination", "gsm_a.rr.bss_paging_coordination",
                FT_BOOLEAN, BASE_NONE, TFS(&gsm_a_rr_bss_paging_coordination_value), 0x0,
                NULL, HFILL }
            },
            { &hf_gsm_a_rr_ccn_active,
              { "CCN Active", "gsm_a.rr.ccn_active",
                FT_BOOLEAN, BASE_NONE, TFS(&gsm_a_rr_ccn_active_value), 0x0,
                NULL, HFILL }
            },
            { &hf_gsm_a_rr_nw_ext_utbf,
              { "NW Ext UTBF", "gsm_a.rr.nw_ext_utbf",
                FT_BOOLEAN, BASE_NONE, TFS(&gsm_a_rr_nw_ext_utbf_value), 0x0,
                "Network Extended Uplink TBF (NW Ext UTBF)", HFILL }
            },
            { &hf_gsm_a_rr_multiple_tbf_capability,
              { "Multiple TBF Capability", "gsm_a.rr.multiple_tbf_capability",
                FT_BOOLEAN, BASE_NONE, TFS(&gsm_a_rr_multiple_tbf_capability_value), 0x0,
                NULL, HFILL }
            },
            { &hf_gsm_a_rr_ext_utbf_no_data,
              { "Ext UTBF No Data", "gsm_a.rr.ext_utbf_no_data",
                FT_BOOLEAN, BASE_NONE, TFS(&gsm_a_rr_ext_utbf_no_data_value), 0x0,
                NULL, HFILL }
            },
            { &hf_gsm_a_rr_dtm_enhancements_capability,
              { "DTM Enhancements Capability", "gsm_a.rr.dtm_enhancements_capability",
                FT_BOOLEAN, BASE_NONE, TFS(&gsm_a_rr_dtm_enhancements_capability_value), 0x0,
                NULL, HFILL }
            },
            { &hf_gsm_a_rr_reduced_latency_access,
              { "Reduced Latency Access", "gsm_a.rr.reduced_latency_access",
                FT_BOOLEAN, BASE_NONE, TFS(&gsm_a_rr_reduced_latency_access_value), 0x0,
                NULL, HFILL }
            },
            { &hf_gsm_a_rr_alpha,
              { "Alpha", "gsm_a.rr.alpha",
                FT_UINT8, BASE_DEC, VALS(gsm_a_rr_alpha_vals), 0x0,
                "Alpha parameter for GPR MS output power control (Alpha)", HFILL }
            },
            { &hf_gsm_a_rr_t_avg_w,
              { "T Avg W", "gsm_a.rr.t_avg_w",
                FT_UINT8, BASE_DEC, VALS(gsm_a_rr_t_avg_x_vals), 0x0,
                "Signal strength filter period for power control in packet idle mode", HFILL }
            },
            { &hf_gsm_a_rr_t_avg_t,
              { "T Avg T", "gsm_a.rr.t_avg_t",
                FT_UINT8, BASE_DEC, VALS(gsm_a_rr_t_avg_x_vals), 0x0,
                "Signal strength filter period for power control in packet transfer mode", HFILL }
            },
            { &hf_gsm_a_rr_pc_meas_chan,
              { "PC Meas Chan", "gsm_a.rr.pc_meas_chan",
                FT_BOOLEAN, BASE_NONE, TFS(&gsm_a_rr_pc_meas_chan_value), 0x0,
                "Channel used to measure the received power level on the downlink for the purpose of the uplink power control (PC Meas Chan)", HFILL }
            },
            { &hf_gsm_a_rr_n_avg_i,
              { "N Avg I", "gsm_a.rr.n_avg_i",
                FT_UINT8, BASE_DEC, VALS(gsm_a_rr_n_avg_i_vals), 0x0,
                "Interfering signal strength filter constant for power control (N Avg I)", HFILL }
            },
            { &hf_gsm_a_rr_sgsnr,
              { "SGSNR", "gsm_a.rr.sgsnr",
                FT_BOOLEAN, BASE_NONE, TFS(&gsm_a_rr_sgsnr_value), 0x0,
                "SGSN Release (SGSNR)", HFILL }
            },
            { &hf_gsm_a_rr_si_status_ind,
              { "SI Status Ind", "gsm_a.rr.si_status_ind",
                FT_BOOLEAN, BASE_NONE, TFS(&gsm_a_rr_si_status_ind_value), 0x0,
                NULL, HFILL }
            },
            { &hf_gsm_a_rr_lb_ms_txpwr_max_cch,
              { "LB MS TxPwr Max CCCH", "gsm_a.rr.lb_ms_txpwr_max_cch",
                FT_UINT8, BASE_DEC, VALS(gsm_a_rr_lb_ms_txpwr_max_cch_vals), 0x0,
                "Maximum TX power level an MS is allowed to use on all other than DCS 1800 and PCS 1900 frequency bands when accessing the system until otherwise commanded (LB MS TxPwr Max CCCH)", HFILL }
            },
            { &hf_gsm_a_rr_si2n_support,
              { "SI2n Support", "gsm_a.rr.si2n_support",
                FT_UINT8, BASE_DEC, VALS(gsm_a_rr_si2n_support_vals), 0x0,
                NULL, HFILL }
            },
            { &hf_gsm_a_rr_mi_index,
              { "Measurement Information Index", "gsm_a.rr.mi_index",
                FT_UINT8, BASE_DEC, NULL, 0x0,
                NULL, HFILL }
            },
            { &hf_gsm_a_rr_mi_count,
              { "Measurement Information Count", "gsm_a.rr.mi_count",
                FT_UINT8, BASE_DEC, NULL, 0x0,
                NULL, HFILL }
            },
            { &hf_gsm_a_rr_3g_wait,
              { "3G Wait", "gsm_a.rr.3g_wait",
                FT_UINT8, BASE_DEC, VALS(gsm_a_rr_3g_wait_vals), 0x0,
                NULL, HFILL }
            },
            { &hf_gsm_a_rr_qsearch_c,
              { "Qsearch C", "gsm_a.rr.qsearch_c",
                FT_UINT8, BASE_DEC, VALS(gsm_a_rr_qsearch_x_vals), 0x00,
                "Search for 3G cells if signal level is below (0 7) or above (8 15) threshold (Qsearch C)", HFILL }
            },
            { &hf_gsm_a_rr_bsic_seen,
              { "BSIC Seen", "gsm_a.rr.bsic_seen",
                FT_BOOLEAN, BASE_NONE, TFS(&gsm_a_rr_bsic_seen_value), 0x0,
                NULL, HFILL }
            },
            { &hf_gsm_a_rr_scale,
              { "Scale", "gsm_a.rr.scale",
                FT_BOOLEAN, BASE_NONE, TFS(&gsm_a_rr_scale_value), 0x0,
                "Offset applied for the reported RXLEV values (Scale)", HFILL }
            },
            { &hf_gsm_a_rr_mean_bep_gmsk,
              { "Mean BEP GMSK", "gsm_a.rr.mean_bep_gmsk",
                FT_UINT8, BASE_DEC, VALS(gsm_a_rr_mean_bep_gmsk_vals), 0x00,
                "Mean Bit Error Probability in GMSK (Mean BEP GMSK)", HFILL }
            },
            { &hf_gsm_a_rr_mean_cv_bep,
              { "CV BEP", "gsm_a.rr.cv_bep",
                FT_UINT8, BASE_DEC, VALS(gsm_a_rr_cv_bep_vals), 0x00,
                "Coefficient of Variation of the Bit Error Probability (CV BEP)", HFILL }
            },
            { &hf_gsm_a_rr_nbr_rcvd_blocks,
              { "Nb Rcvd Blocks", "gsm_a.rr.nbr_rcvd_blocks",
                FT_UINT8, BASE_DEC, NULL, 0x00,
                "Number of correctly decoded blocks that were completed during the measurement report period (Nb Rcvd Blocks)", HFILL }
            },
            { &hf_gsm_a_rr_reporting_quantity,
              { "Reporting Quantity", "gsm_a.rr.reporting_quantity",
                FT_UINT8, BASE_DEC, NULL, 0x00,
                NULL, HFILL }
            },
            { &hf_gsm_a_rr_3g_priority_param_desc_utran_start,
              { "UTRAN Start", "gsm_a.rr.3g_priority.utran_start",
                FT_BOOLEAN, BASE_NONE, TFS(&priority_utran_start), 0x00,
                NULL, HFILL }
            },
            { &hf_gsm_a_rr_3g_priority_param_desc_utran_stop,
              { "UTRAN Stop", "gsm_a.rr.3g_priority.utran_stop",
                FT_BOOLEAN, BASE_NONE, TFS(&priority_utran_stop), 0x00,
                NULL, HFILL }
            },
            { &hf_gsm_a_rr_3g_priority_param_desc_default_utran_prio,
              { "DEFAULT_UTRAN_PRIORITY", "gsm_a.rr.3g_priority.default_utran_prio",
                FT_UINT8, BASE_DEC, NULL, 0x00,
                NULL, HFILL }
            },
            { &hf_gsm_a_rr_3g_priority_param_desc_default_threshold_utran,
              { "DEFAULT_THRESH_UTRAN", "gsm_a.rr.3g_priority.default_threshold_utran",
                FT_UINT8, BASE_DEC, VALS(gsm_a_rr_thresh_utran_eutran_high_low), 0x00,
                NULL, HFILL }
            },
            { &hf_gsm_a_rr_3g_priority_param_desc_default_utran_qrxlevmin,
              { "DEFAULT_UTRAN_QRXLEVMIN", "gsm_a.rr.3g_priority.default_utran_qrxlevmin",
                FT_UINT8, BASE_DEC, VALS(gsm_a_rr_utran_qrxlevmin), 0x00,
                NULL, HFILL }
            },
            { &hf_gsm_a_rr_utran_frequency_index,
              { "UTRAN Frequency Index", "gsm_a.rr.3g_priority.utran_frequency_index",
                FT_UINT8, BASE_DEC, NULL, 0x00,
                NULL, HFILL }
            },
            { &hf_gsm_a_rr_utran_priority,
              { "UTRAN_PRIORITY", "gsm_a.rr.3g_priority.utran_priority",
                FT_UINT8, BASE_DEC, NULL, 0x00,
                NULL, HFILL }
            },
            { &hf_gsm_a_rr_thresh_utran_high,
              { "THRESH_UTRAN_high", "gsm_a.rr.3g_priority.thres_utran_high",
                FT_UINT8, BASE_DEC, VALS(gsm_a_rr_thresh_utran_eutran_high_low), 0x00,
                NULL, HFILL }
            },
            { &hf_gsm_a_rr_thresh_utran_low,
              { "THRESH_UTRAN_low", "gsm_a.rr.3g_priority.thres_utran_low",
                FT_UINT8, BASE_DEC, VALS(gsm_a_rr_thresh_utran_eutran_high_low), 0x00,
                NULL, HFILL }
            },
            { &hf_gsm_a_rr_utran_qrxlevmin,
              { "UTRAN_QRXLEVMIN", "gsm_a.rr.3g_priority.utran_qrxlevmin",
                FT_UINT8, BASE_DEC, VALS(gsm_a_rr_utran_qrxlevmin), 0x00,
                NULL, HFILL }
            },
            { &hf_gsm_a_rr_eutran_ccn_active,
              { "E-UTRAN_CCN_ACTIVE", "gsm_a.rr.3g_priority.eutran_ccn_active",
                FT_BOOLEAN, BASE_NONE, TFS(&eutran_ccn_active), 0x00,
                NULL, HFILL }
            },
            { &hf_gsm_a_rr_eutran_start,
              { "E-UTRAN Start", "gsm_a.rr.3g_priority.eutran_start",
                FT_BOOLEAN, BASE_NONE, TFS(&priority_utran_start), 0x00,
                NULL, HFILL }
            },
            { &hf_gsm_a_rr_eutran_stop,
              { "E-UTRAN Stop", "gsm_a.rr.3g_priority.utran_stop",
                FT_BOOLEAN, BASE_NONE, TFS(&priority_utran_stop), 0x00,
                NULL, HFILL }
            },
            { &hf_gsm_a_rr_qsearch_c_eutran_initial,
              { "Qsearch_C_E-UTRAN_Initial", "gsm_a.rr.qsearch_c_eutran_initial",
                FT_UINT8, BASE_DEC, VALS(gsm_a_rr_qsearch_c_eutran_initial), 0x00,
                NULL, HFILL }
            },
            { &hf_gsm_a_rr_eutran_multirat_reporting,
              { "E-UTRAN_MULTIRAT_REPORTING (nb of E-UTRAN cells to be included in measurement report)", "gsm_a.rr.eutran_multirat_reporting",
                FT_UINT8, BASE_DEC, NULL, 0x00,
                NULL, HFILL }
            },
            { &hf_gsm_a_rr_eutran_fdd_reporting_threshold_rsrp,
              { "E-UTRAN_FDD_REPORTING_THRESHOLD", "gsm_a.rr.eutran_fdd_reporting_threshold_rsrp",
                FT_UINT8, BASE_DEC, VALS(gsm_a_rr_lte_rsrp_reporting_threshold_vals), 0x00,
                NULL, HFILL }
            },
            { &hf_gsm_a_rr_eutran_fdd_reporting_threshold_rsrq,
              { "E-UTRAN_FDD_REPORTING_THRESHOLD", "gsm_a.rr.eutran_fdd_reporting_threshold_rsrq",
                FT_UINT8, BASE_DEC, VALS(gsm_a_rr_lte_rsrq_reporting_threshold_vals), 0x00,
                NULL, HFILL }
            },
            { &hf_gsm_a_rr_eutran_fdd_reporting_threshold_2,
              { "E-UTRAN_FDD_REPORTING_THRESHOLD_2", "gsm_a.rr.eutran_fdd_reporting_threshold_2",
                FT_UINT8, BASE_DEC, NULL, 0x00,
                NULL, HFILL }
            },
            { &hf_gsm_a_rr_eutran_fdd_reporting_offset,
              { "E-UTRAN_FDD_REPORTING_OFFSET", "gsm_a.rr.eutran_fdd_reporting_offset",
                FT_UINT8, BASE_DEC, NULL, 0x00,
                NULL, HFILL }
            },
            { &hf_gsm_a_rr_eutran_tdd_reporting_threshold_rsrp,
              { "E-UTRAN_TDD_REPORTING_THRESHOLD", "gsm_a.rr.eutran_tdd_reporting_threshold_rsrp",
                FT_UINT8, BASE_DEC, VALS(gsm_a_rr_lte_rsrp_reporting_threshold_vals), 0x00,
                NULL, HFILL }
            },
            { &hf_gsm_a_rr_eutran_tdd_reporting_threshold_rsrq,
              { "E-UTRAN_TDD_REPORTING_THRESHOLD", "gsm_a.rr.eutran_tdd_reporting_threshold_rsrq",
                FT_UINT8, BASE_DEC, VALS(gsm_a_rr_lte_rsrq_reporting_threshold_vals), 0x00,
                NULL, HFILL }
            },
            { &hf_gsm_a_rr_eutran_tdd_reporting_threshold_2,
              { "E-UTRAN_TDD_REPORTING_THRESHOLD_2", "gsm_a.rr.eutran_tdd_reporting_threshold_2",
                FT_UINT8, BASE_DEC, NULL, 0x00,
                NULL, HFILL }
            },
            { &hf_gsm_a_rr_eutran_tdd_reporting_offset,
              { "E-UTRAN_TDD_REPORTING_OFFSET", "gsm_a.rr.eutran_tdd_reporting_offset",
                FT_UINT8, BASE_DEC, NULL, 0x00,
                NULL, HFILL }
            },
            { &hf_gsm_a_rr_eutran_fdd_measurement_report_offset,
              { "E-UTRAN_FDD_MEASUREMENT_REPORT_OFFSET", "gsm_a.rr.eutran_fdd_measurement_report_offset",
                FT_UINT8, BASE_DEC, NULL, 0x00,
                NULL, HFILL }
            },
            { &hf_gsm_a_rr_eutran_tdd_measurement_report_offset,
              { "E-UTRAN_TDD_MEASUREMENT_REPORT_OFFSET", "gsm_a.rr.eutran_tdd_measurement_report_offset",
                FT_UINT8, BASE_DEC, NULL, 0x00,
                NULL, HFILL }
            },
            { &hf_gsm_a_rr_reporting_granularity,
              { "REPORTING_GRANULARITY", "gsm_a.rr.reporting_granularity",
                FT_UINT8, BASE_DEC, NULL, 0x00,
                NULL, HFILL }
            },
            { &hf_gsm_a_rr_eutran_default_measurement_control_eutran,
              { "DEFAULT_Measurement_Control_E-UTRAN", "gsm_a.rr.eutran_default_measurement_control_eutran",
                FT_UINT8, BASE_DEC, NULL, 0x00,
                NULL, HFILL }
            },
            { &hf_gsm_a_rr_eutran_measurement_control_eutran,
              { "Measurement_Control_E-UTRAN", "gsm_a.rr.eutran_measurement_control_eutran",
                FT_BOOLEAN, BASE_NONE, TFS(&measurement_control_eutran), 0x00,
                NULL, HFILL }
            },
            { &hf_gsm_a_rr_qsearch_p_eutran,
              { "Qsearch_P_E-UTRAN", "gsm_a.rr.qsearch_p_eutran",
                FT_UINT8, BASE_DEC, NULL, 0x00,
                NULL, HFILL }
            },
            { &hf_gsm_a_rr_serving_cell_priority_param_geran_priority,
              { "GERAN_PRIORITY", "gsm_a.rr.serving_cell_priority_param_geran_priority",
                FT_UINT8, BASE_DEC, NULL, 0x00,
                NULL, HFILL }
            },
            { &hf_gsm_a_rr_serving_cell_priority_param_thresh_prio_search,
              { "THRESH_Priority_Search", "gsm_a.rr.serving_cell_priority_param_thresh_prio_search",
                FT_UINT8, BASE_DEC, VALS(gsm_a_rr_serving_cell_thresh_priority_search), 0x00,
                NULL, HFILL }
            },
            { &hf_gsm_a_rr_serving_cell_priority_param_thresh_gsm_low,
              { "THRESH_GSM_low", "gsm_a.rr.serving_cell_priority_param_thresh_gsm_low",
                FT_UINT8, BASE_DEC, VALS(gsm_a_rr_serving_cell_thresh_gsm_low), 0x00,
                NULL, HFILL }
            },
            { &hf_gsm_a_rr_serving_cell_priority_param_h_prio,
              { "H_PRIO", "gsm_a.rr.serving_cell_priority_param_h_prio",
                FT_UINT8, BASE_DEC, VALS(gsm_a_rr_serving_cell_priority_param_h_prio), 0x00,
                NULL, HFILL }
            },
            { &hf_gsm_a_rr_serving_cell_priority_param_t_reselection,
              { "T_Reselection", "gsm_a.rr.serving_cell_priority_param_t_reselection",
                FT_UINT8, BASE_DEC, VALS(gsm_a_rr_serving_cell_priority_param_t_reselection), 0x00,
                NULL, HFILL }
            },
            { &hf_gsm_a_rr_eutran_earfcn,
              { "EARFCN", "gsm_a.rr.earfcn",
                FT_UINT16, BASE_DEC, NULL, 0x00,
                NULL, HFILL }
            },
            { &hf_gsm_a_rr_eutran_measurement_bandwidth,
              { "Measurement Bandwidth", "gsm_a.rr.eutran_measurement_bandwidth",
                FT_UINT8, BASE_DEC, VALS(gsm_a_rr_eutran_measurement_bandwidth), 0x00,
                NULL, HFILL }
            },
            { &hf_gsm_a_rr_eutran_priority,
              { "E-UTRAN_PRIORITY", "gsm_a.rr.eutran_priority",
                FT_UINT8, BASE_DEC, NULL, 0x00,
                NULL, HFILL }
            },
            { &hf_gsm_a_rr_thresh_eutran_high,
              { "THRESH_EUTRAN_high", "gsm_a.rr.thresh_eutran_high",
                FT_UINT8, BASE_DEC, VALS(gsm_a_rr_thresh_utran_eutran_high_low), 0x00,
                NULL, HFILL }
            },
            { &hf_gsm_a_rr_thresh_eutran_low,
              { "THRESH_EUTRAN_low", "gsm_a.rr.thresh_eutran_low",
                FT_UINT8, BASE_DEC, VALS(gsm_a_rr_thresh_utran_eutran_high_low), 0x00,
                NULL, HFILL }
            },
            { &hf_gsm_a_rr_eutran_qrxlevmin,
              { "E-UTRAN_QRXLEVMIN", "gsm_a.rr.eutran_qrxlevmin",
                FT_UINT8, BASE_DEC, VALS(gsm_a_rr_eutran_qrxlevmin), 0x00,
                NULL, HFILL }
            },
            { &hf_gsm_a_rr_eutran_pcid,
              { "PCID", "gsm_a.rr.pcid",
                FT_UINT16, BASE_DEC, NULL, 0x00,
                NULL, HFILL }
            },
            { &hf_gsm_a_rr_eutran_pcid_bitmap_group,
              { "PCID_BITMAP_GROUP", "gsm_a.rr.pcid_bitmap_group",
                FT_UINT8, BASE_DEC, NULL, 0x00,
                NULL, HFILL }
            },
            { &hf_gsm_a_rr_eutran_pcid_pattern_length,
              { "PCID_Pattern_length", "gsm_a.rr.pcid_pattern_length",
                FT_UINT8, BASE_DEC, VALS(gsm_a_rr_pcid_psc_pattern_length), 0x00,
                NULL, HFILL }
            },
#if 0
            { &hf_gsm_a_rr_eutran_pcid_pattern,
              { "PCID_Pattern", "gsm_a.rr.pcid_pattern",
                FT_UINT8, BASE_DEC, NULL, 0x00,
                NULL, HFILL }
            },
#endif
            { &hf_gsm_a_rr_eutran_pcid_pattern_sense,
              { "PCID_pattern_sense", "gsm_a.rr.pcid_pattern_sense",
                FT_BOOLEAN, BASE_NONE, TFS(&gsm_a_rr_pcid_pattern_sense), 0x00,
                NULL, HFILL }
            },
            { &hf_gsm_a_rr_eutran_frequency_index,
              { "E-UTRAN_FREQUENCY_INDEX", "gsm_a.rr.eutran_frequency_index",
                FT_UINT8, BASE_DEC, NULL, 0x00,
                NULL, HFILL }
            },
            { &hf_gsm_a_rr_psc,
              { "PSC", "gsm_a.rr.psc",
                FT_UINT16, BASE_DEC, NULL, 0x00,
                NULL, HFILL }
            },
            { &hf_gsm_a_rr_utran_psc_pattern_length,
              { "PSC_Pattern_length", "gsm_a.rr.psc_pattern_length",
                FT_UINT8, BASE_DEC, VALS(gsm_a_rr_pcid_psc_pattern_length), 0x00,
                NULL, HFILL }
            },
            { &hf_gsm_a_rr_utran_psc_pattern_sense,
              { "PSC_pattern_sense", "gsm_a.rr.psc_pattern_sense",
                FT_BOOLEAN, BASE_NONE, NULL, 0x00,
                NULL, HFILL }
            },
            { &hf_gsm_a_rr_utran_csg_fdd_uarfcn,
              { "CSG FDD UARFCN", "gsm_a.rr.utran_csg_fdd_uarfcn",
                FT_UINT16, BASE_DEC,  NULL, 0x0,
                NULL, HFILL }
            },
            { &hf_gsm_a_rr_utran_csg_tdd_uarfcn,
              { "CSG TDD UARFCN", "gsm_a.rr.utran_csg_tdd_uarfcn",
                FT_UINT16, BASE_DEC,  NULL, 0x0,
                NULL, HFILL }
            },
            { &hf_gsm_a_rr_csg_earfcn,
              { "CSG_EARFCN", "gsm_a.rr.csg_earfcn",
                FT_UINT16, BASE_DEC, NULL, 0x00,
                NULL, HFILL }
            },
            { &hf_gsm_a_rr_3g_control_param_desc_meas_ctrl_utran,
              { "PCID_pattern_sense", "gsm_a.rr.meas_ctrl_utran",
                FT_BOOLEAN, BASE_NONE, TFS(&measurement_control_utran), 0x00,
                NULL, HFILL }
            },
            { &hf_gsm_a_rr_extended_ra,
              { "Extended_RA", "gsm_a.rr.extended_ra",
                FT_UINT8, BASE_DEC, NULL, 0x00,
                NULL, HFILL }
            },
            { &hf_gsm_a_rr_access_tech_type,
              { "Access_Technology_Type", "gsm_a.rr.access_tech_type",
                FT_UINT8, BASE_DEC, VALS(gsm_a_access_tech_type_vals), 0x00,
                NULL, HFILL }
            },
            { &hf_gsm_a_rr_tfi_assignment,
              { "TFI_Assignment", "gsm_a.rr.tfi_assignment",
                FT_UINT8, BASE_DEC, NULL, 0x00,
                NULL, HFILL }
            },
            { &hf_gsm_a_rr_polling,
              { "Polling", "gsm_a.rr.polling",
                FT_BOOLEAN, BASE_NONE, TFS(&gsm_a_polling_vals), 0x00,
                NULL, HFILL }
            },
            { &hf_gsm_a_rr_usf,
              { "USF", "gsm_a.rr.usf",
                FT_UINT8, BASE_DEC, NULL, 0x00,
                NULL, HFILL }
            },
            { &hf_gsm_a_rr_usf_granularity,
              { "USF_granularity", "gsm_a.rr.usf_granularity",
                FT_BOOLEAN, BASE_NONE, TFS(&gsm_a_usf_granularity_vals), 0x00,
                NULL, HFILL }
            },
            { &hf_gsm_a_rr_p0,
              { "P0", "gsm_a.rr.p0",
                FT_UINT8, BASE_CUSTOM, CF_FUNC(&fmt_2db_units), 0x00,
                NULL, HFILL }
            },
            { &hf_gsm_a_rr_pr_mode,
              { "pr_mode", "gsm_a.rr.pr_mode",
                FT_BOOLEAN, BASE_NONE, NULL, 0x00,
                NULL, HFILL }
            },
            { &hf_gsm_a_rr_egprs_mcs,
              { "Egprs_Modulation_and_Coding_Scheme", "gsm_a.rr.egprs_mcs",
                FT_UINT8, BASE_DEC, VALS(gsm_a_egprs_mcs_vals), 0x00,
                NULL, HFILL }
            },
            { &hf_gsm_a_rr_tlli_block_channel_coding,
              { "TLLI_Block_Channel_Coding", "gsm_a.rr.tlli_block_cs",
                FT_BOOLEAN, BASE_NONE, TFS(&gsm_a_tlli_block_channel_coding_vals), 0x00,
                NULL, HFILL }
            },
            { &hf_gsm_a_rr_bep_period2,
              { "Bep_Period2", "gsm_a.rr.bep_period2",
                FT_UINT8, BASE_DEC, NULL, 0x00,
                NULL, HFILL }
            },
            { &hf_gsm_a_rr_resegment,
              { "Resegment", "gsm_a.rr.resegment",
                FT_BOOLEAN, BASE_NONE, TFS(&gsm_a_resegment_vals), 0x00,
                NULL, HFILL }
            },
            { &hf_gsm_a_rr_egprs_window_size,
              { "Egprs_Windows_Size", "gsm_a.rr.egprs_win_size",
                FT_UINT8, BASE_DEC, VALS(gsm_a_egprs_windows_size_vals), 0x00,
                NULL, HFILL }
            },
            { &hf_gsm_a_rr_gamma,
              { "Gamma", "gsm_a.rr.gamma",
                FT_UINT8, BASE_CUSTOM, CF_FUNC(&fmt_2db_units), 0x00,
                NULL, HFILL }
            },
            { &hf_gsm_a_rr_timing_adv_index,
              { "Timing_Advance_Index", "gsm_a.rr.timing_adv_idx",
                FT_UINT8, BASE_DEC, NULL, 0x00,
                NULL, HFILL }
            },
            { &hf_gsm_a_rr_tbf_starting_time,
              { "TBF_Starting_Time", "gsm_a.rr.tvf_start_time",
                FT_UINT16, BASE_DEC, NULL, 0x00,
                NULL, HFILL }
            },
            { &hf_gsm_a_rr_num_of_radio_block_allocated,
              { "Number_of_Radio_Block_Allocated", "gsm_a.rr.num_of_radio_blk_allocated",
                FT_UINT8, BASE_DEC, NULL, 0x00,
                NULL, HFILL }
            },
            { &hf_gsm_a_rr_pfi,
              { "PFI", "gsm_a.rr.pfi",
                FT_UINT8, BASE_DEC, NULL, 0x00,
                NULL, HFILL }
            },
            { &hf_gsm_a_rr_mbms_service_id,
              { "MBMS_Service_ID", "gsm_a.rr.mbms_service_id",
                FT_UINT32, BASE_DEC, NULL, 0x00,
                NULL, HFILL }
            },
            { &hf_gsm_a_rr_ms_id,
              { "MS_ID", "gsm_a.rr.ms_id",
                FT_UINT8, BASE_DEC, NULL, 0x00,
                NULL, HFILL }
            },
            { &hf_gsm_a_rr_timing_adv_timeslot_num,
              { "Timing_Advance_Timeslot_Number", "gsm_a.rr.timing_adv_ts",
                FT_UINT8, BASE_DEC, NULL, 0x00,
                NULL, HFILL }
            },
            { &hf_gsm_a_rr_gprs_cs,
              { "Channel_Coding_Command", "gsm_a.rr.gprs_cs",
                FT_UINT8, BASE_DEC, VALS(gsm_a_gprs_cs_vals), 0x00,
                NULL, HFILL }
            },
            { &hf_gsm_a_rr_rlc_mode,
              { "RLC_Mode", "gsm_a.rr.rlc_mode",
                FT_BOOLEAN, BASE_NONE, TFS(&gsm_a_rlc_mode_vals), 0x00,
                NULL, HFILL }
            },
            { &hf_gsm_a_rr_ta_valid,
              { "TA_Valid", "gsm_a.rr.ta_valid",
                FT_BOOLEAN, BASE_NONE, TFS(&gsm_a_ta_valid_vals), 0x00,
                NULL, HFILL }
            },
            { &hf_gsm_a_rr_link_quality_meas_mode,
              { "Link_Quality_Measure_Mode", "gsm_a.rr.link_qual_meas_mode",
                FT_UINT8, BASE_DEC, VALS(gsm_a_link_quality_meas_mode_vals), 0x00,
                NULL, HFILL }
            },
            { &hf_gsm_a_rr_emr_bitmap_length,
              { "BITMAP_LENGTH", "gsm_a.rr.emr_bitmap_len",
                FT_UINT8, BASE_DEC, NULL, 0x00,
                NULL, HFILL }
            },
            { &hf_gsm_a_rr_eutran_mr_n_eutran,
              { "N_E-UTRAN", "gsm_a.rr.eutran_mr_n_eutran",
                FT_UINT8, BASE_DEC, NULL, 0x00,
                NULL, HFILL }
            },
            { &hf_gsm_a_rr_eutran_mr_freq_idx,
              { "E-UTRAN_FREQUENCY_INDEX", "gsm_a.rr.eutran_mr_freq_idx",
                FT_UINT8, BASE_DEC, NULL, 0x00,
                NULL, HFILL }
            },
            { &hf_gsm_a_rr_eutran_mr_cell_id,
              { "CELL IDENTITY", "gsm_a.rr.eutran_mr_cell_id",
                FT_UINT16, BASE_DEC, NULL, 0x00,
                NULL, HFILL }
            },
            { &hf_gsm_a_rr_eutran_mr_rpt_quantity,
              { "REPORTING_QUANTITY", "gsm_a.rr.eutran_mr_rpt_quantity",
                FT_UINT8, BASE_DEC, NULL, 0x00,
                NULL, HFILL }
            },
            { &hf_gsm_a_rr_ma_channel_set,
              { "Channel Set", "gsm_a.rr.ma_channel_set",
                FT_UINT8, BASE_HEX, NULL, 0x00,
                NULL, HFILL }
            },
            { &hf_n_range_orig_arfcn,
              { "ORIG-ARFCN", "gsm_a.rr.orig_arfcn",
                FT_UINT16, BASE_DEC, NULL, 0x00,
                NULL, HFILL }
            },
            { &hf_gsm_a_rr_peo_bcch_change_mark,
              { "PEO BCCH CHANGE MARK", "gsm_a.rr.peo_bcch_change_mark",
                FT_UINT8, BASE_DEC, NULL, 0x00,
                NULL, HFILL }
            },
            { &hf_gsm_a_rr_feat_ind_cs_ir,
              { "CS IR","gsm_a.rr.feature_indicator.cs_ir",
                FT_BOOLEAN, BASE_NONE, TFS(&gsm_a_rr_feat_ind_cs_ir), 0x00,
                NULL, HFILL }
            },
            { &hf_gsm_a_rr_feat_ind_ps_ir,
              { "PS IR","gsm_a.rr.feature_indicator.ps_ir",
                FT_BOOLEAN, BASE_NONE, TFS(&gsm_a_rr_feat_ind_ps_ir), 0x00,
                NULL, HFILL }
            },
            /* ---> EC <---*/
            { &hf_gsm_a_rr_ec_qhfi,
              { "QUARTER_HYPERFRAME_INDICATOR", "gsm_a.rr.ec_quarter_hyperframe_indicator",
                FT_UINT8, BASE_DEC, NULL, 0x00,
                NULL, HFILL }
            },
            { &hf_gsm_a_rr_ec_dl_cc,
              { "DL_COVERAGE_CLASS", "gsm_a.rr.ec_dl_cc",
                FT_UINT8, BASE_DEC, VALS(gsm_a_rr_ec_cc_vals), 0x00,
                NULL, HFILL }
            },
            { &hf_gsm_a_rr_ec_ul_cc,
              { "UL_COVERAGE_CLASS", "gsm_a.rr.ec_ul_cc",
                FT_UINT8, BASE_DEC, VALS(gsm_a_rr_ec_cc_vals), 0x00,
                NULL, HFILL }
            },
            { &hf_gsm_a_rr_tsc_set,
              { "TSC Set", "gsm_a.rr.tsc_set",
                FT_UINT8, BASE_DEC, NULL, 0x00,
                NULL, HFILL }
            },
            { &hf_gsm_a_rr_ec_tsc,
              { "TSC (EC)", "gsm_a.rr.ec_tsc",
                FT_UINT8, BASE_DEC, NULL, 0x00,
                NULL, HFILL }
            },
            { &hf_gsm_a_rr_ec_ma_number,
              { "MA_NUMBER", "gsm_a.rr.ma_number",
                FT_UINT8, BASE_CUSTOM, CF_FUNC(gsm_a_rr_ec_ma_number_fmt), 0x00,
                NULL, HFILL }
            },
            { &hf_gsm_a_rr_ec_enhanced_access_burst,
              { "ENHANCED_ACCESS_BURST", "gsm_a.rr.ec_enhanced_access_burst",
                FT_BOOLEAN, BASE_NONE, TFS(&tfs_shall_be_shall_not_be_used), 0x0,
                NULL, HFILL
              }
            },
            { &hf_gsm_a_rr_ec_starting_ul_timeslot,
              { "STARTING_UL_TIMESLOT", "gsm_a.rr.ec_starting_ul_timeslot",
                FT_UINT8, BASE_DEC, NULL, 0x0,
                NULL, HFILL
              }
            },
            { &hf_gsm_a_rr_ec_starting_dl_timeslot,
              { "STARTING_DL_TIMESLOT", "gsm_a.rr.ec_starting_dl_timeslot",
                FT_UINT8, BASE_DEC, NULL, 0x0,
                NULL, HFILL
              }
            },
            { &hf_gsm_a_rr_ec_starting_dl_timeslot_offset,
              { "STARTING_DL_TIMESLOT_OFFSET", "gsm_a.rr.ec_starting_dl_timeslot_offset",
                FT_UINT8, BASE_DEC, NULL, 0x0,
                NULL, HFILL
              }
            },
            { &hf_gsm_a_rr_ec_starting_ul_timeslot_offset,
              { "STARTING_UL_TIMESLOT_OFFSET", "gsm_a.rr.ec_starting_ul_timeslot_offset",
                FT_UINT8, BASE_DEC, NULL, 0x0,
                NULL, HFILL
              }
            },
            { &hf_gsm_a_rr_ec_overlaid_cdma_code,
              { "OVERLAID_CDMA_CODE", "gsm_a.rr.ec_overlaid_cdma_code",
                FT_UINT8, BASE_DEC, NULL, 0x0,
                NULL, HFILL
              }
            },
            { &hf_gsm_a_rr_ec_mcs_exist,
              { "MCS Exist (EC)", "gsm_a.rr.ec_mcs_exist",
                FT_UINT8, BASE_DEC, NULL, 0x0,
                NULL, HFILL
              }
            },
            { &hf_gsm_a_rr_ec_start_first_ul_data_block,
              { "START_FIRST_UL_DATA_BLOCK", "gsm_a.rr.ec_start_first_ul_data_block",
                FT_UINT8, BASE_DEC, NULL, 0x0,
                NULL, HFILL
              }
            },
            { &hf_gsm_a_rr_ec_fua_gap_list,
              { "FUA_GAP List", "gsm_a.rr.ec_fua_gap_list",
                FT_UINT8, BASE_DEC, NULL, 0x0,
                NULL, HFILL
              }
            },
            { &hf_gsm_a_rr_ec_start_fn_next_data_block_exist,
              { "START_FN_NEXT_DATA_BLOCK Present", "gsm_a.rr.ec_start_fn_next_data_block_exist",
                FT_UINT8, BASE_DEC, NULL, 0x0,
                NULL, HFILL
              }
            },
            { &hf_gsm_a_rr_ec_start_fn_next_data_block,
              { "START_FN_NEXT_DATA_BLOCK", "gsm_a.rr.ec_start_fn_next_data_block",
                FT_UINT8, BASE_DEC, NULL, 0x0,
                NULL, HFILL
              }
            },
            { &hf_gsm_a_dtap_msg_rr_ec_ccch_type,
              { "DTAP Radio Resources Management Message Type (EC)", "gsm_a.dtap.msg_rr_ec_ccch_type",
                FT_UINT8, BASE_HEX, VALS(gsm_a_dtap_msg_rr_ec_ccch_strings), 0x0,
                NULL, HFILL }
            },

            { &hf_gsm_a_rr_ec_used_dl_cc,
              { "USED_DL_COVERAGE_CLASS", "gsm_a.rr.ec_used_dl_cc",
                FT_UINT8, BASE_DEC, VALS(gsm_a_rr_ec_cc_vals), 0x0,
                NULL, HFILL
              }
            },
            { &hf_gsm_a_rr_ec_page_extension_exist,
              { "EC_PAGE_EXTENSION Exist", "gsm_a.rr.ec_page_extension_exist",
                FT_UINT8, BASE_DEC, NULL, 0x0,
                NULL, HFILL
              }
            },
            { &hf_gsm_a_rr_ec_page_extension,
              { "EC_PAGE_EXTENSION", "gsm_a.rr.ec_page_extension",
                FT_UINT8, BASE_DEC, NULL, 0x0,
                NULL, HFILL
              }
            },
            { &hf_gsm_a_rr_ec_last_tdma_frame,
              { "Last TDMA Frame", "gsm_a.rr.ec_last_tdma_frame",
                FT_UINT16, BASE_DEC, NULL, 0x0,
                NULL, HFILL
              }
            },
            { &hf_gsm_a_rr_ec_echoed_random_bits,
              { "Echoed Random Bits", "gsm_a.rr.ec_echoed_random_bits",
                FT_UINT8, BASE_DEC, NULL, 0x0,
                NULL, HFILL
              }
            },
            { &hf_gsm_a_rr_ec_wait_timer,
              { "EC-Wait Timer", "gsm_a.rr.ec_wait_timer",
                FT_UINT8, BASE_DEC, NULL, 0x0,
                NULL, HFILL
              }
            },
            { &hf_gsm_a_rr_ec_req_ref_2_present,
              { "EC Request Reference 2 Exist", "gsm_a.rr.ec_request_reference_2_exist",
                FT_UINT8, BASE_DEC, NULL, 0x0,
                NULL, HFILL
              }
            },
            { &hf_gsm_a_rr_ec_req_ref_3_present,
              { "EC Request Reference 3 Exist", "gsm_a.rr.ec_request_reference_3_exist",
                FT_UINT8, BASE_DEC, NULL, 0x0,
                NULL, HFILL
              }
            },
            { &hf_gsm_a_rr_ec_ptmsi_imsi_select,
              { "Mobile Identity", "gsm_a.rr.ec_ptmsi_imsi_select",
                FT_BOOLEAN, BASE_NONE, TFS(&tfs_ec_ptmsi_imsi), 0x0,
                NULL, HFILL
              }
            },
            { &hf_gsm_a_rr_ec_imsi_digits,
              { "Number of IMSI Digits", "gsm_a.rr.ec_imsi_digits",
                FT_UINT8, BASE_DEC, NULL, 0x0,
                NULL, HFILL
              }
            },
            { &hf_gsm_a_rr_ec_imsi,
              { "IMSI", "gsm_a.rr.ec_imsi",
                FT_STRING, BASE_NONE, NULL, 0x0,
                NULL, HFILL
              }
            },
            { &hf_gsm_a_rr_ec_mobile_identity_2_exist,
              { "EC Mobile Identity 2 Exist", "gsm_a.rr.ec_mobile_identity_2_exist",
                FT_UINT8, BASE_DEC, NULL, 0x0,
                NULL, HFILL
              }
            },
            { &hf_gsm_a_rr_ec_cc1_timeslot_multiplier,
              { "EC CC1 Timeslot Multiplier", "gsm_a.rr.ec_cc1_ts_multiplier",
                FT_UINT8, BASE_DEC, NULL, 0x0,
                NULL, HFILL
              }
            },
            { &hf_gsm_a_rr_ec_alpha_enable,
              { "EC ALPHA Enable", "gsm_a.rr.ec_alpha_enable",
                FT_UINT8, BASE_DEC, NULL, 0x0,
                NULL, HFILL
              }
            },
            { &hf_gsm_a_rr_rcc,
              { "RCC", "gsm_a.rr_rcc",
                FT_UINT8, BASE_DEC, NULL, 0x00,
                NULL, HFILL
              }
            },
            { &hf_gsm_a_rr_implicit_reject_cs,
                { "Implicit Reject CS", "gsm_a.rr.implicit_reject_cs",
                  FT_UINT8, BASE_DEC, VALS(gsm_a_rr_implicit_reject_cs_vals), 0x00,
                  NULL, HFILL }
              },
            { &hf_gsm_a_rr_implicit_reject_ps,
                { "Implicit Reject PS", "gsm_a.rr.implicit_reject_ps",
                  FT_UINT8, BASE_DEC, VALS(gsm_a_rr_implicit_reject_ps_vals), 0x00,
                  NULL, HFILL }
              },
            { &hf_gsm_a_rr_peo_dsc,
              { "PEO DSC", "gsm_a.rr.peo_dsc",
                FT_UINT8, BASE_DEC, VALS(gsm_a_rr_peo_dsc_vals), 0x00,
                NULL, HFILL }
            },
            { &hf_gsm_a_rr_c1_delta_min,
              { "C1 DELTA MIN value", "gsm_a.rr.c1_delta_min",
                FT_UINT8, BASE_DEC, VALS(gsm_a_rr_c1_delta_min_vals), 0x00,
                NULL, HFILL }
            },
            { &hf_gsm_a_rr_c1_delta_max,
              { "C1 DELTA MAX value", "gsm_a.rr.c1_delta_max",
                FT_UINT8, BASE_DEC, VALS(gsm_a_rr_c1_delta_max_vals), 0x00,
                NULL, HFILL }
            },
            { &hf_gsm_a_rr_reported_timeslots,
              { "REPORTED TIMESLOTS", "gsm_a.rr.reported_timeslots",
                FT_UINT8, BASE_DEC, NULL, 0x00,
                NULL, HFILL
              }
            },
            { &hf_gsm_a_rr_tsh,
              { "TSH", "gsm_a.rr.tsh",
                FT_UINT8, BASE_DEC, NULL, 0x00,
                NULL, HFILL
              }
            },
            { &hf_gsm_a_rr_rtti_usf_mode,
              { "RTTI USF Mode", "gsm_a.rr.rtti_usf_mode",
                FT_UINT8, BASE_DEC, VALS(gsm_a_rr_rtti_usf_mode_vals), 0x00,
                NULL, HFILL
              }
            },
            { &hf_gsm_a_rr_pdch_pair_indic,
              { "PDCH PAIR INDICATION", "gsm_a.rr.pdch_pair_indic",
                FT_UINT8, BASE_DEC, VALS(gsm_a_rr_pdch_pair_indic_vals), 0x00,
                NULL, HFILL
              }
            },
            { &hf_gsm_a_rr_additional_usf,
              { "Additional USF", "gsm_a.rr.additional_usf",
                FT_UINT8, BASE_DEC, NULL, 0x00,
                NULL, HFILL
              }
            },
            { &hf_gsm_a_rr_usf_2,
              { "USF2", "gsm_a.rr.usf_2",
                FT_UINT8, BASE_DEC, NULL, 0x00,
                NULL, HFILL
              }
            },
            { &hf_gsm_a_rr_additional_usf_2,
              { "Additional USF2", "gsm_a.rr.additional_usf_2",
                FT_UINT8, BASE_DEC, NULL, 0x00,
                NULL, HFILL
              }
            },
            { &hf_gsm_a_rr_npm_transfer_time,
              { "NPM Transfer Time", "gsm_a.rr.npm_transfer_time",
                FT_UINT8, BASE_DEC, NULL, 0x00,
                NULL, HFILL
              }
            },
            { &hf_gsm_a_rr_event_based_fanr,
              { "EVENT BASED FANR", "gsm_a.rr.event_base_fanr",
                FT_UINT8, BASE_DEC, VALS(gsm_a_rr_event_based_fanr_vals), 0x00,
                NULL, HFILL
              }
            },
            { &hf_gsm_a_rr_dl_egprs_level,
              { "Downlink EGPRS Level", "gsm_a.rr.dl_egprs_level",
                FT_UINT8, BASE_DEC, VALS(gsm_a_rr_egprs_level_vals), 0x00,
                NULL, HFILL
              }
            },

            /* Generated from convert_proto_tree_add_text.pl */
            { &hf_gsm_a_rr_padding, { "Padding Bits", "gsm_a.rr.padding_bits", FT_BYTES, BASE_NONE, NULL, 0x0, NULL, HFILL }},
            { &hf_gsm_a_rr_nr_of_fdd_cells, { "Nr of FDD Cells", "gsm_a.rr.nr_of_fdd_cells", FT_UINT8, BASE_DEC, NULL, 0x0, NULL, HFILL }},
            { &hf_gsm_a_rr_scrambling_code, { "Scrambling Code", "gsm_a.rr.scrambling_code", FT_UINT16, BASE_DEC, NULL, 0x0, NULL, HFILL }},
            { &hf_gsm_a_rr_diversity, { "Diversity", "gsm_a.rr.diversity", FT_UINT16, BASE_DEC, NULL, 0x0, NULL, HFILL }},
            { &hf_gsm_a_rr_nr_of_tdd_cells, { "Nr of TDD Cells", "gsm_a.rr.nr_of_tdd_cells", FT_UINT8, BASE_DEC, NULL, 0x0, NULL, HFILL }},
            { &hf_gsm_a_rr_cell_parameter, { "Cell Parameter", "gsm_a.rr.cell_parameter", FT_UINT16, BASE_DEC, NULL, 0x0, NULL, HFILL }},
            { &hf_gsm_a_rr_sync_case_tstd, { "Sync Case TSTD", "gsm_a.rr.sync_case_tstd", FT_UINT8, BASE_DEC, NULL, 0x0, NULL, HFILL }},
            { &hf_gsm_a_rr_diversity_tdd, { "Diversity TDD", "gsm_a.rr.diversity_tdd", FT_UINT8, BASE_DEC, NULL, 0x0, NULL, HFILL }},
            { &hf_gsm_a_rr_packet_channel_type, { "Channel Type", "gsm_a.rr.packet_channel_type", FT_UINT8, BASE_DEC, NULL, 0x0, NULL, HFILL }},
            { &hf_gsm_a_rr_timeslot, { "Timeslot", "gsm_a.rr.timeslot", FT_UINT8, BASE_DEC, NULL, 0x07, NULL, HFILL }},
            { &hf_gsm_a_rr_training_sequence, { "Training Sequence", "gsm_a.rr.training_sequence", FT_UINT8, BASE_DEC, NULL, 0xE0, NULL, HFILL }},
            { &hf_gsm_a_rr_hopping_channel, { "Hopping Channel", "gsm_a.rr.hopping_channel", FT_BOOLEAN, 8, TFS(&tfs_yes_no), 0x10, NULL, HFILL }},
            { &hf_gsm_a_rr_hopping_channel_maio, { "Hopping channel MAIO", "gsm_a.rr.hopping_channel_maio", FT_UINT16, BASE_DEC, NULL, 0x0, NULL, HFILL }},
            { &hf_gsm_a_rr_hopping_channel_ma_num_ind, { "Hopping channel MA_NUMBER_IND", "gsm_a.rr.hopping_channel_ma_num_ind", FT_UINT8, BASE_DEC, NULL, 0x0, NULL, HFILL }},
            { &hf_gsm_a_rr_hopping_channel_change_mark_1, { "CHANGE_MARK_1", "gsm_a.rr.hopping_channel_change_mark_1", FT_UINT8, BASE_DEC, NULL, 0x0, NULL, HFILL }},
            { &hf_gsm_a_rr_extension_length, { "Extension Length", "gsm_a.rr.extension_length", FT_UINT8, BASE_DEC, NULL, 0x0, NULL, HFILL }},
            { &hf_gsm_a_rr_bitmap_length, { "Bitmap length", "gsm_a.rr.bitmap_length", FT_UINT8, BASE_DEC, NULL, 0x0, NULL, HFILL }},
            { &hf_gsm_a_rr_bitmap, { "Bitmap", "gsm_a.rr.bitmap", FT_UINT32, BASE_DEC, NULL, 0x0, NULL, HFILL }},
            { &hf_gsm_a_rr_mobile_country_code, { "Mobile Country Code (MCC)", "gsm_a.rr.mobile_country_code", FT_STRING, BASE_NONE, NULL, 0x0, NULL, HFILL }},
            { &hf_gsm_a_rr_mobile_network_code, { "Mobile Network Code (MNC)", "gsm_a.rr.mobile_network_code", FT_STRING, BASE_NONE, NULL, 0x0, NULL, HFILL }},
            { &hf_gsm_a_rr_len_indicator_ms_id, { "Length Indicator of MS ID", "gsm_a.rr.len_indicator_ms_id", FT_UINT8, BASE_DEC, NULL, 0x0, NULL, HFILL }},
            { &hf_gsm_a_rr_maio, { "MAIO", "gsm_a.rr.maio", FT_UINT8, BASE_DEC, NULL, 0x0, NULL, HFILL }},
            { &hf_gsm_a_rr_ba_index_start_rtd, { "BA Index Start RTD", "gsm_a.rr.ba_index_start_rtd", FT_UINT8, BASE_DEC, NULL, 0x0, NULL, HFILL }},
            { &hf_gsm_a_rr_ba_index_start_bsic, { "BA Index Start BSIC", "gsm_a.rr.ba_index_start_bsic", FT_UINT8, BASE_DEC, NULL, 0x0, NULL, HFILL }},
            { &hf_gsm_a_rr_number_remaining_bsic, { "Number Remaining BSIC", "gsm_a.rr.number_remaining_bsic", FT_UINT8, BASE_DEC, NULL, 0x0, NULL, HFILL }},
            { &hf_gsm_a_rr_number_cells, { "Number Cells", "gsm_a.rr.number_cells", FT_UINT8, BASE_DEC, NULL, 0x0, NULL, HFILL }},
            { &hf_gsm_a_rr_pcid_pattern, { "PCID_Pattern", "gsm_a.rr.pcid_pattern", FT_UINT8, BASE_DEC, NULL, 0x0, NULL, HFILL }},
            { &hf_gsm_a_rr_psc_pattern, { "PSC_Pattern", "gsm_a.rr.psc_pattern", FT_UINT8, BASE_DEC, NULL, 0x0, NULL, HFILL }},
            { &hf_gsm_a_rr_where, { "Where", "gsm_a.rr.where", FT_UINT8, BASE_DEC, NULL, 0x0, NULL, HFILL }},
            { &hf_gsm_a_rr_mcc, { "MCC", "gsm_a.rr.mcc", FT_UINT16, BASE_DEC, NULL, 0x0, NULL, HFILL }},
            { &hf_gsm_a_rr_mnc, { "MNC", "gsm_a.rr.mnc", FT_UINT16, BASE_DEC, NULL, 0x0, NULL, HFILL }},
            { &hf_gsm_a_rr_short_lsa_id, { "Short LSA ID", "gsm_a.rr.short_lsa_id", FT_UINT24, BASE_DEC, NULL, 0x0, NULL, HFILL }},
            { &hf_gsm_a_rr_lsa_id, { "LSA ID", "gsm_a.rr.lsa_id", FT_UINT32, BASE_DEC, NULL, 0x0, NULL, HFILL }},
            { &hf_gsm_a_rr_rxlev_carrier, { "RXLEV carrier", "gsm_a.rr.rxlev_carrier", FT_UINT8, BASE_DEC|BASE_EXT_STRING, &gsm_a_rr_rxlev_vals_ext, 0x0, NULL, HFILL }},
            { &hf_gsm_a_rr_ciphering_key_seq_num, { "Ciphering Key Sequence Number", "gsm_a.rr.ciphering_key_seq_num", FT_UINT8, BASE_DEC, NULL, 0x07, NULL, HFILL }},
            { &hf_gsm_a_rr_neighbour_cell_list_index, { "Neighbour Cell List index", "gsm_a.rr.neighbour_cell_list_index", FT_UINT8, BASE_DEC, NULL, 0x0, NULL, HFILL }},
            { &hf_gsm_a_rr_message_elements, { "Message Elements", "gsm_a.rr.message_elements", FT_BYTES, BASE_NONE, NULL, 0x0, NULL, HFILL }},
            { &hf_gsm_a_rr_spare, { "Spare", "gsm_a.rr.spare", FT_UINT8, BASE_HEX, NULL, 0x0, NULL, HFILL }},
            { &hf_gsm_a_rr_single_channel_arfcn, { "Single channel ARFCN", "gsm_a.rr.single_channel_arfcn", FT_UINT16, BASE_DEC, NULL, 0x0, NULL, HFILL }},
            { &hf_gsm_a_rr_rtd_index, { "RTD index", "gsm_a.rr.rtd_index", FT_UINT16, BASE_DEC, NULL, 0x0, NULL, HFILL }},
            { &hf_gsm_a_rr_arfcn_list, { "List of ARFCNs", "gsm_a.rr.arfcn_list", FT_BYTES, BASE_NONE, NULL, 0x0, NULL, HFILL }},
            { &hf_gsm_a_rr_da_list, { "List of DA", "gsm_a.rr.da_list", FT_UINT8, BASE_HEX, NULL, 0x0, NULL, HFILL }},
            { &hf_gsm_a_rr_ua_list, { "List of UA", "gsm_a.rr.ua_list", FT_UINT8, BASE_HEX, NULL, 0x0, NULL, HFILL }},
            { &hf_gsm_a_rr_ma_bitmap, { "MA Bitmap", "gsm_a.rr.ma_bitmap", FT_BYTES, BASE_NONE, NULL, 0x0, NULL, HFILL }},
            { &hf_gsm_a_rr_inc_arfcn_bitmap, { "Bitmap of increasing ARFCNs included in the Mobile Allocation", "gsm_a.rr.inc_arfcn_bitmap", FT_BYTES, BASE_NONE, NULL, 0x0, NULL, HFILL }},
            { &hf_gsm_a_rr_ccn_supported, { "CCN Supported", "gsm_a.rr.ccn_supported", FT_BYTES, BASE_NONE, NULL, 0x0, NULL, HFILL }},
            { &hf_gsm_a_rr_pbcch_use_bcch, { "PBCCH shall use the BCCH carrier", "gsm_a.rr.pbcch_use_bcch", FT_NONE, BASE_NONE, NULL, 0x0, NULL, HFILL }},
            { &hf_gsm_a_rr_ia_rest_oct_reserved, { "Reserved for future use (however the value 7C for the first octet shall not be used)", "gsm_a.rr.ia_rest_oct_reserved", FT_NONE, BASE_NONE, NULL, 0x0, NULL, HFILL }},
            { &hf_gsm_a_rr_tch_facch_sacchm, { "TCH/F + FACCH/F and SACCH/M", "gsm_a.rr.tch_facch_sacchm", FT_UINT8, BASE_DEC, NULL, 0xF8, NULL, HFILL }},
            { &hf_gsm_a_rr_tch_facch_sacchf, { "TCH/F + FACCH/F and SACCH/F", "gsm_a.rr.tch_facch_sacchf", FT_UINT8, BASE_DEC, NULL, 0xF8, NULL, HFILL }},
            { &hf_gsm_a_rr_tch_facch_sacchm_bi, { "TCH/F + FACCH/F and SACCH/M + bi- and unidirectional channels", "gsm_a.rr.tch_facch_sacchm_bi", FT_UINT8, BASE_DEC, NULL, 0xF8, NULL, HFILL }},
            { &hf_gsm_a_rr_tch_acch, { "TCH/H + ACCHs", "gsm_a.rr.tch_acch", FT_UINT8, BASE_DEC, NULL, 0xF8, NULL, HFILL }},
            { &hf_gsm_a_rr_sdcch4_sdcchc4_cbch, { "SDCCH/4 + SACCH/C4 or CBCH (SDCCH/4)", "gsm_a.rr.sdcch4_sdcchc4_cbch", FT_UINT8, BASE_DEC, NULL, 0xF8, NULL, HFILL }},
            { &hf_gsm_a_rr_sdcch8_sdcchc8_cbch, { "SDCCH/8 + SACCH/C8 or CBCH (SDCCH/8)", "gsm_a.rr.sdcch8_sdcchc8_cbch", FT_UINT8, BASE_DEC, NULL, 0xF8, NULL, HFILL }},
            { &hf_gsm_a_rr_tch_facchf_sacchm_bi, { "TCH/F + FACCH/F and SACCH/M + bidirectional channels at timeslot", "gsm_a.rr.tch_facchf_sacchm_bi", FT_UINT8, BASE_DEC, NULL, 0xF8, NULL, HFILL }},
            { &hf_gsm_a_rr_tch_facchf_sacchm_uni, { "TCH/F + FACCH/F and SACCH/M + unidirectional channels at timeslot", "gsm_a.rr.tch_facchf_sacchm_uni", FT_UINT8, BASE_DEC, NULL, 0xF8, NULL, HFILL }},
            { &hf_gsm_a_rr_unknown_channel_info, { "Unknown channel information", "gsm_a.rr.unknown_channel_info", FT_UINT8, BASE_DEC, NULL, 0xF8, NULL, HFILL }},
            { &hf_gsm_a_rr_tchf_acchs, { "TCH/F + ACCHs", "gsm_a.rr.tchf_acchs", FT_UINT8, BASE_DEC, NULL, 0xF8, NULL, HFILL }},
            { &hf_gsm_a_rr_subchannel, { "Subchannel", "gsm_a.rr.tch_facch_sacchm", FT_UINT8, BASE_DEC, NULL, 0x0, NULL, HFILL }},
            { &hf_gsm_a_rr_w_elements, { "W elements", "gsm_a.rr.w_elements", FT_BYTES, BASE_NONE, NULL, 0x0, NULL, HFILL }},
            { &hf_gsm_a_rr_field_bit_long, { "Field is X bits long", "gsm_a.rr.field_bit_long", FT_BYTES, BASE_NONE, NULL, 0x0, NULL, HFILL }},

            /* gsm_rr_csn_flag() fields */
            { &hf_gsm_a_rr_fdd_repeat_freq, { "Repeating FDD Frequency", "gsm_a.rr.fdd_repeat_freq", FT_BOOLEAN, BASE_NONE, TFS(&tfs_present_not_present), 0x00, NULL, HFILL }},
            { &hf_gsm_a_rr_tdd_repeat_freq, { "Repeating TDD Frequency", "gsm_a.rr.tdd_repeat_freq", FT_BOOLEAN, BASE_NONE, TFS(&tfs_present_not_present), 0x00, NULL, HFILL }},
            { &hf_gsm_a_rr_repeat_range_limit, { "Repeating Range Limits", "gsm_a.rr.repeat_range_limit", FT_BOOLEAN, BASE_NONE, TFS(&tfs_present_not_present), 0x00, NULL, HFILL }},
            { &hf_gsm_a_rr_repeat_ba_frequency, { "Repeating BA Frequency", "gsm_a.rr.repeat_ba_frequency", FT_BOOLEAN, BASE_NONE, TFS(&tfs_present_not_present), 0x00, NULL, HFILL }},
            { &hf_gsm_a_rr_band_indicator, { "Band Indicator", "gsm_a.rr.band_indicator", FT_BOOLEAN, BASE_NONE, TFS(&tfs_1900_1800), 0x00, NULL, HFILL }},
            { &hf_gsm_a_rr_repeat_gsm_desc, { "Repeating GSM Description struct", "gsm_a.rr.repeat_gsm_desc", FT_BOOLEAN, BASE_NONE, TFS(&tfs_present_not_present), 0x00, NULL, HFILL }},
            { &hf_gsm_a_rr_repeat_utran_fdd_desc, { "Repeating UTRAN FDD Description struct", "gsm_a.rr.repeat_utran_fdd_desc", FT_BOOLEAN, BASE_NONE, TFS(&tfs_present_not_present), 0x00, NULL, HFILL }},
            { &hf_gsm_a_rr_bandwidth_fdd_present, { "Bandwidth FDD", "gsm_a.rr.bandwidth_fdd_present", FT_BOOLEAN, BASE_NONE, TFS(&tfs_present_not_present), 0x00, NULL, HFILL }},
            { &hf_gsm_a_rr_fdd_cell_info_present, { "FDD Cell Information", "gsm_a.rr.fdd_cell_info_present", FT_BOOLEAN, BASE_NONE, TFS(&tfs_present_not_present), 0x00, NULL, HFILL }},
            { &hf_gsm_a_rr_fdd_indic0, { "FDD Indic0", "gsm_a.rr.fdd_indic0", FT_BOOLEAN, BASE_NONE, NULL, 0x00, NULL, HFILL }},
            { &hf_gsm_a_rr_repeat_utran_tdd_desc, { "Repeating UTRAN TDD Description struct", "gsm_a.rr.repeat_utran_tdd_desc", FT_BOOLEAN, BASE_NONE, TFS(&tfs_present_not_present), 0x00, NULL, HFILL }},
            { &hf_gsm_a_rr_bandwidth_tdd_present, { "Bandwidth TDD", "gsm_a.rr.bandwidth_tdd_present", FT_BOOLEAN, BASE_NONE, TFS(&tfs_present_not_present), 0x00, NULL, HFILL }},
            { &hf_gsm_a_rr_tdd_cell_info_present, { "TDD Cell Information", "gsm_a.rr.tdd_cell_info_present", FT_BOOLEAN, BASE_NONE, TFS(&tfs_present_not_present), 0x00, NULL, HFILL }},
            { &hf_gsm_a_rr_tdd_indic0, { "TDD Indic0", "gsm_a.rr.tdd_indic0", FT_BOOLEAN, BASE_NONE, NULL, 0x00, NULL, HFILL }},
            { &hf_gsm_a_rr_pfi_present, { "PFI", "gsm_a.rr.pfi_present", FT_BOOLEAN, BASE_NONE, TFS(&tfs_supported_not_supported_by_cell), 0x00, NULL, HFILL }},
            { &hf_gsm_a_rr_msms_procedures, { "MBMS procedures", "gsm_a.rr.msms_procedures", FT_BOOLEAN, BASE_NONE, TFS(&tfs_present_not_present), 0x00, NULL, HFILL }},
            { &hf_gsm_a_rr_repeat_dynamic_arfcn_mapping, { "Repeating Dynamic ARFCN Mapping", "gsm_a.rr.repeat_dynamic_arfcn_mapping", FT_BOOLEAN, BASE_NONE, TFS(&tfs_present_not_present), 0x00, NULL, HFILL }},
            { &hf_gsm_a_rr_pan_bits_present, { "PAN bits", "gsm_a.rr.pan_bits_present", FT_BOOLEAN, BASE_NONE, TFS(&tfs_present_not_present), 0x00, NULL, HFILL }},
            { &hf_gsm_a_rr_optional_extensions_present, { "Optional Extensions", "gsm_a.rr.optional_extensions_present", FT_BOOLEAN, BASE_NONE, TFS(&tfs_present_not_present), 0x00, NULL, HFILL }},
            { &hf_gsm_a_rr_egprs_supported, { "EGPRS", "gsm_a.rr.egprs_supported", FT_BOOLEAN, BASE_NONE, TFS(&tfs_supported_not_supported_by_cell), 0x00, NULL, HFILL }},
            { &hf_gsm_a_rr_access_tech_req, { "Access Technologies Request", "gsm_a.rr.access_tech_req", FT_BOOLEAN, BASE_NONE, TFS(&tfs_present_not_present), 0x00, NULL, HFILL }},
            { &hf_gsm_a_rr_tfi_multiblock, { "TFI/Multiblock", "gsm_a.rr.tfi_multiblock", FT_BOOLEAN, BASE_NONE, TFS(&tfs_tfi_multi_block_allocation_present), 0x00, NULL, HFILL }},
            { &hf_gsm_a_rr_tfi_allocation_type, { "Allocation Type", "gsm_a.rr.tfi_allocation_type", FT_BOOLEAN, BASE_NONE, TFS(&tfs_fixed_dynamic_allocation), 0x00, NULL, HFILL }},
            { &hf_gsm_a_rr_p0_present, { "P0", "gsm_a.rr.p0_present", FT_BOOLEAN, BASE_NONE, TFS(&tfs_present_not_present), 0x00, NULL, HFILL }},
            { &hf_gsm_a_rr_bep_period2_present, { "BEP_PERIOD2", "gsm_a.rr.bep_period2.present", FT_BOOLEAN, BASE_NONE, TFS(&tfs_present_not_present), 0x00, NULL, HFILL }},
            { &hf_gsm_a_rr_alpha_present, { "Alpha", "gsm_a.rr.alpha_present", FT_BOOLEAN, BASE_NONE, TFS(&tfs_present_not_present), 0x00, NULL, HFILL }},
            { &hf_gsm_a_rr_timing_adv_index_present, { "Timing Advance Index", "gsm_a.rr.timing_adv_index.present", FT_BOOLEAN, BASE_NONE, TFS(&tfs_present_not_present), 0x00, NULL, HFILL }},
            { &hf_gsm_a_rr_tbf_starting_time_present, { "TBF Starting Time", "gsm_a.rr.tbf_starting_time.present", FT_BOOLEAN, BASE_NONE, TFS(&tfs_present_not_present), 0x00, NULL, HFILL }},
            { &hf_gsm_a_rr_bts_power_control_mode, { "BTS Power Control Mode", "gsm_a.rr.bts_power_control_mode", FT_BOOLEAN, BASE_NONE, TFS(&tfs_mode_b_mode_a), 0x00, NULL, HFILL }},
            { &hf_gsm_a_rr_mcc_mnc_parameters, { "MCC and MNC Parameters", "gsm_a.rr.mcc_mnc_parameters", FT_BOOLEAN, BASE_NONE, TFS(&tfs_present_not_present), 0x00, NULL, HFILL }},
            { &hf_gsm_a_rr_timing_adv_present, { "Timing Advance Value", "gsm_a.rr.timing_adv.present", FT_BOOLEAN, BASE_NONE, TFS(&tfs_present_not_present), 0x00, NULL, HFILL }},
            { &hf_gsm_a_rr_timing_advance_index_timeslot, { "Timing Advance Index and Timeslot", "gsm_a.rr.timing_advance_index_timeslot", FT_BOOLEAN, BASE_NONE, TFS(&tfs_present_not_present), 0x00, NULL, HFILL }},
            { &hf_gsm_a_rr_packet_downlink_assignment, { "Packet Downlink Assignment", "gsm_a.rr.packet_downlink_assignment", FT_BOOLEAN, BASE_NONE, TFS(&tfs_downlink_assignment), 0x00, NULL, HFILL }},
            { &hf_gsm_a_rr_mbms_assignment, { "MBMS Assignment", "gsm_a.rr.mbms_assignment", FT_BOOLEAN, BASE_NONE, TFS(&tfs_non_distribution_distribution), 0x00, NULL, HFILL }},
            { &hf_gsm_a_rr_ms_parameters, { "MS Parameters", "gsm_a.rr.ms_parameters", FT_BOOLEAN, BASE_NONE, TFS(&tfs_present_not_present), 0x00, NULL, HFILL }},
            { &hf_gsm_a_rr_gamma_present, { "Gamma", "gsm_a.rr.gamma.present", FT_BOOLEAN, BASE_NONE, TFS(&tfs_present_not_present), 0x00, NULL, HFILL }},
            { &hf_gsm_a_rr_packet_uplink_assignment, { "Packet Uplink Assignment", "gsm_a.rr.packet_uplink_assignment", FT_BOOLEAN, BASE_NONE, TFS(&tfs_normal_single_block), 0x00, NULL, HFILL }},
            { &hf_gsm_a_rr_allocation_type, { "Allocation Type", "gsm_a.rr.allocation_type", FT_BOOLEAN, BASE_NONE, TFS(&tfs_fixed_dynamic_allocation), 0x00, NULL, HFILL }},
            { &hf_gsm_a_rr_timing_advance_index, { "Timing Advance Index", "gsm_a.rr.timing_advance_index", FT_BOOLEAN, BASE_NONE, TFS(&tfs_present_not_present), 0x00, NULL, HFILL }},
            { &hf_gsm_a_rr_early_r97_version_reserved_bit, { "Bit reserved for earlier version of protocol", "gsm_a.rr.early_r97_version_reserved_bit", FT_BOOLEAN, BASE_NONE, TFS(&tfs_early_r97_version_later_than_r97_version), 0x00, NULL, HFILL }},
            { &hf_gsm_a_rr_later_r97_version_reserved_bit, { "Bit reserved for earlier version of protocol", "gsm_a.rr.later_r97_version_reserved_bit", FT_BOOLEAN, BASE_NONE, TFS(&tfs_later_than_r97_version_early_r97_version), 0x00, NULL, HFILL }},
            { &hf_gsm_a_rr_earlier_version_reserved_bit, { "Bit reserved for earlier version of protocol", "gsm_a.rr.earlier_version_reserved_bit", FT_BOOLEAN, BASE_NONE, TFS(&tfs_earlier_version_current_version), 0x00, NULL, HFILL }},
            { &hf_gsm_a_rr_extended_ra_present, { "Extended RA", "gsm_a.rr.extended_ra.present", FT_BOOLEAN, BASE_NONE, TFS(&tfs_present_not_present), 0x00, NULL, HFILL }},
            { &hf_gsm_a_rr_tfi_assignment_present, { "TFI Assignment (etc)", "gsm_a.rr.tfi_assignment.present", FT_BOOLEAN, BASE_NONE, TFS(&tfs_present_not_present), 0x00, NULL, HFILL }},
            { &hf_gsm_a_rr_pr_mode_present, { "BTS Power Control Mode", "gsm_a.rr.pr_mode.present", FT_BOOLEAN, BASE_NONE, TFS(&tfs_fixed_dynamic_allocation), 0x00, NULL, HFILL }},
            { &hf_gsm_a_rr_downlink_uplink_discriminator_bit, { "Discriminator bit", "gsm_a.rr.downlink_uplink_discriminator_bit", FT_BOOLEAN, BASE_NONE, TFS(&tfs_downlink_uplink_discriminator_bit), 0x00, NULL, HFILL }},
            { &hf_gsm_a_rr_downlink_uplink, { "Downlink/Uplink", "gsm_a.rr.downlink_uplink", FT_BOOLEAN, BASE_NONE, TFS(&tfs_downlink_uplink_assign), 0x00, NULL, HFILL }},
            { &hf_gsm_a_rr_second_packet_assignment_discriminator_bit, { "Discriminator Bit", "gsm_a.rr.second_packet_assignment_discriminator_bit", FT_BOOLEAN, BASE_NONE, TFS(&tfs_second_part_packet_assignment), 0x00, NULL, HFILL }},
            { &hf_gsm_a_rr_packet_discriminator_bit, { "Discriminator Bit", "gsm_a.rr.packet_discriminator_bit", FT_BOOLEAN, BASE_NONE, TFS(&tfs_packet_downlink_uplink_assignment), 0x00, NULL, HFILL }},
            { &hf_gsm_a_rr_compressed_inter_rat_handover_info, { "A compressed version of the INTER RAT HANDOVER INFO message", "gsm_a.rr.compressed_inter_rat_handover_info", FT_BOOLEAN, BASE_NONE, TFS(&tfs_shall_be_shall_not_be_used), 0x00, NULL, HFILL }},
            { &hf_gsm_a_rr_group_channel_description, { "Group Channel Description", "gsm_a.rr.group_channel_description", FT_BOOLEAN, BASE_NONE, TFS(&tfs_present_not_present), 0x00, NULL, HFILL }},
            { &hf_gsm_a_rr_hopping_case, { "Hopping case", "gsm_a.rr.hopping_case", FT_BOOLEAN, BASE_NONE, TFS(&tfs_present_not_present), 0x00, NULL, HFILL }},
            { &hf_gsm_a_rr_hopping_flag, { "Hopping flag", "gsm_a.rr.hopping_flag", FT_BOOLEAN, BASE_NONE, TFS(&tfs_present_not_present), 0x00, NULL, HFILL }},
            { &hf_gsm_a_rr_utran_fdd_description, { "UTRAN FDD Description", "gsm_a.rr.utran_fdd_description", FT_BOOLEAN, BASE_NONE, TFS(&tfs_present_not_present), 0x00, NULL, HFILL }},
            { &hf_gsm_a_rr_utran_fdd_description_earlier_version_bit_reserved1, { "Bit reserved for earlier version of protocol", "gsm_a.rr.utran_fdd_description_earlier_version_bit_reserved1", FT_BOOLEAN, BASE_NONE, TFS(&tfs_earlier_version_current_version), 0x00, NULL, HFILL }},
            { &hf_gsm_a_rr_utran_fdd_description_earlier_version_bit_reserved2, { "Bit reserved for earlier version of protocol", "gsm_a.rr.utran_fdd_description_earlier_version_bit_reserved2", FT_BOOLEAN, BASE_NONE, TFS(&tfs_current_version_earlier_version), 0x00, NULL, HFILL }},
            { &hf_gsm_a_rr_utran_tdd_description, { "UTRAN TDD Description", "gsm_a.rr.utran_tdd_description", FT_BOOLEAN, BASE_NONE, TFS(&tfs_present_not_present), 0x00, NULL, HFILL }},
            { &hf_gsm_a_rr_utran_tdd_description_earlier_version_bit_reserved1, { "Bit reserved for earlier version of protocol", "gsm_a.rr.utran_tdd_description_earlier_version_bit_reserved1", FT_BOOLEAN, BASE_NONE, TFS(&tfs_earlier_version_current_version), 0x00, NULL, HFILL }},
            { &hf_gsm_a_rr_utran_tdd_description_earlier_version_bit_reserved2, { "Bit reserved for earlier version of protocol", "gsm_a.rr.utran_tdd_description_earlier_version_bit_reserved2", FT_BOOLEAN, BASE_NONE, TFS(&tfs_current_version_earlier_version), 0x00, NULL, HFILL }},
            { &hf_gsm_a_rr_3g_measurement_parameters_description, { "3G Measurement Parameters Description", "gsm_a.rr.3g_measurement_parameters_description", FT_BOOLEAN, BASE_NONE, TFS(&tfs_present_not_present), 0x00, NULL, HFILL }},
            { &hf_gsm_a_rr_fdd_parameters, { "FDD Parameters", "gsm_a.rr.fdd_parameters", FT_BOOLEAN, BASE_NONE, TFS(&tfs_present_not_present), 0x00, NULL, HFILL }},
            { &hf_gsm_a_rr_tdd_parameters, { "TDD Parameters", "gsm_a.rr.tdd_parameters", FT_BOOLEAN, BASE_NONE, TFS(&tfs_present_not_present), 0x00, NULL, HFILL }},
            { &hf_gsm_a_rr_3g_additional_measurement_parameters_description, { "3G Additional Measurement Parameters Description", "gsm_a.rr.3g_additional_measurement_parameters_description", FT_BOOLEAN, BASE_NONE, TFS(&tfs_present_not_present), 0x00, NULL, HFILL }},
            { &hf_gsm_a_rr_repeated_umts_fdd_neighbour_cells, { "Repeated UMTS FDD Neighbour Cells", "gsm_a.rr.repeated_umts_fdd_neighbour_cells", FT_BOOLEAN, BASE_NONE, TFS(&tfs_present_not_present), 0x00, NULL, HFILL }},
            { &hf_gsm_a_rr_repeated_umts_fdd_neighbour_cells_earlier_version_bit_reserved, { "Bit reserved for earlier version of protocol", "gsm_a.rr.repeated_umts_fdd_neighbour_cells_earlier_version_bit_reserved", FT_BOOLEAN, BASE_NONE, TFS(&tfs_earlier_version_current_version), 0x00, NULL, HFILL }},
            { &hf_gsm_a_rr_fdd_cell_info_param_value0, { "The FDD_CELL_INFORMATION parameter value '0000000000'", "gsm_a.rr.fdd_cell_info_param_value0", FT_BOOLEAN, BASE_NONE, TFS(&tfs_member_not_member_of_set), 0x00, NULL, HFILL }},
            { &hf_gsm_a_rr_repeated_umts_tdd_neighbour_cells, { "Repeated UMTS TDD Neighbour Cells", "gsm_a.rr.repeated_umts_tdd_neighbour_cells", FT_BOOLEAN, BASE_NONE, TFS(&tfs_present_not_present), 0x00, NULL, HFILL }},
            { &hf_gsm_a_rr_repeated_umts_tdd_neighbour_cells_earlier_version_bit_reserved, { "Bit reserved for earlier version of protocol", "gsm_a.rr.repeated_umts_tdd_neighbour_cells_earlier_version_bit_reserved", FT_BOOLEAN, BASE_NONE, TFS(&tfs_earlier_version_current_version), 0x00, NULL, HFILL }},
            { &hf_gsm_a_rr_tdd_cell_info_param_value0, { "the TDD_CELL_INFORMATION parameter value '0000000000'", "gsm_a.rr.tdd_cell_info_param_value0", FT_BOOLEAN, BASE_NONE, TFS(&tfs_member_not_member_of_set), 0x00, NULL, HFILL }},
            { &hf_gsm_a_rr_rtd6, { "RTD6", "gsm_a.rr.rtd6", FT_BOOLEAN, BASE_NONE, TFS(&tfs_present_not_present), 0x00, NULL, HFILL }},
            { &hf_gsm_a_rr_ba_index_start_rtd_present, { "BA Index Start RTD", "gsm_a.rr.ba_index_start_rtd.present", FT_BOOLEAN, BASE_NONE, TFS(&tfs_present_not_present), 0x00, NULL, HFILL }},
            { &hf_gsm_a_rr_rtd, { "RTD", "gsm_a.rr.rtd", FT_BOOLEAN, BASE_NONE, TFS(&tfs_not_present_present), 0x00, NULL, HFILL }},
            { &hf_gsm_a_rr_additional_rtd, { "additional RTD", "gsm_a.rr.additional_rtd", FT_BOOLEAN, BASE_NONE, TFS(&tfs_not_present_present), 0x00, NULL, HFILL }},
            { &hf_gsm_a_rr_additional_rtd_struct, { "additional RTD struct", "gsm_a.rr.additional_rtd_struct", FT_BOOLEAN, BASE_NONE, TFS(&tfs_not_present_present), 0x00, NULL, HFILL }},
            { &hf_gsm_a_rr_rtd12, { "RTD12", "gsm_a.rr.rtd12", FT_BOOLEAN, BASE_NONE, TFS(&tfs_present_not_present), 0x00, NULL, HFILL }},
            { &hf_gsm_a_rr_repeated_rtd, { "Repeated RTD", "gsm_a.rr.repeated_rtd", FT_BOOLEAN, BASE_NONE, TFS(&tfs_not_present_present), 0x00, NULL, HFILL }},
            { &hf_gsm_a_rr_repeated_rtd_frequency, { "Repeated RTD Frequency", "gsm_a.rr.repeated_rtd_frequency", FT_BOOLEAN, BASE_NONE, TFS(&tfs_not_present_present), 0x00, NULL, HFILL }},
            { &hf_gsm_a_rr_ba_index_start_bsic_present, { "BA Index Start BSIC", "gsm_a.rr.ba_index_start_bsic.present", FT_BOOLEAN, BASE_NONE, TFS(&tfs_present_not_present), 0x00, NULL, HFILL }},
            { &hf_gsm_a_rr_multiband_reporting_present, { "Multiband Reporting", "gsm_a.rr.multiband_reporting.present", FT_BOOLEAN, BASE_NONE, TFS(&tfs_present_not_present), 0x00, NULL, HFILL }},
            { &hf_gsm_a_rr_serving_reporting_present, { "Serving Reporting", "gsm_a.rr.serving_reporting.present", FT_BOOLEAN, BASE_NONE, TFS(&tfs_present_not_present), 0x00, NULL, HFILL }},
            { &hf_gsm_a_rr_900_reporting_present, { "900 Reporting", "gsm_a.rr.900_reporting.present", FT_BOOLEAN, BASE_NONE, TFS(&tfs_present_not_present), 0x00, NULL, HFILL }},
            { &hf_gsm_a_rr_1800_reporting_present, { "1800 Reporting", "gsm_a.rr.1800_reporting.present", FT_BOOLEAN, BASE_NONE, TFS(&tfs_present_not_present), 0x00, NULL, HFILL }},
            { &hf_gsm_a_rr_400_reporting_present, { "400 Reporting", "gsm_a.rr.400_reporting.present", FT_BOOLEAN, BASE_NONE, TFS(&tfs_present_not_present), 0x00, NULL, HFILL }},
            { &hf_gsm_a_rr_1900_reporting_present, { "1900 Reporting", "gsm_a.rr.1900_reporting.present", FT_BOOLEAN, BASE_NONE, TFS(&tfs_present_not_present), 0x00, NULL, HFILL }},
            { &hf_gsm_a_rr_850_reporting_present, { "850 Reporting", "gsm_a.rr.850_reporting.present", FT_BOOLEAN, BASE_NONE, TFS(&tfs_present_not_present), 0x00, NULL, HFILL }},
            { &hf_gsm_a_rr_fdd_reporting_threshold_2_present, { "FDD Reporting Threshold2", "gsm_a.rr.fdd_reporting_threshold_2.present", FT_BOOLEAN, BASE_NONE, TFS(&tfs_present_not_present), 0x00, NULL, HFILL }},
            { &hf_gsm_a_rr_default_utran_priority_parameters, { "Default UTRAN Priority Parameters", "gsm_a.rr.default_utran_priority_parameters", FT_BOOLEAN, BASE_NONE, TFS(&tfs_present_not_present), 0x00, NULL, HFILL }},
            { &hf_gsm_a_rr_repeated_utran_priority_parameters, { "Repeated UTRAN Priority Parameters", "gsm_a.rr.repeated_utran_priority_parameters", FT_BOOLEAN, BASE_NONE, TFS(&tfs_present_not_present), 0x00, NULL, HFILL }},
            { &hf_gsm_a_rr_utran_frequency_index_present, { "UTRAN Frequency Index", "gsm_a.rr.utran_frequency_index.present", FT_BOOLEAN, BASE_NONE, TFS(&tfs_present_not_present), 0x00, NULL, HFILL }},
            { &hf_gsm_a_rr_utran_priority_present, { "UTRAN Priority", "gsm_a.rr.utran_priority.present", FT_BOOLEAN, BASE_NONE, TFS(&tfs_present_not_present), 0x00, NULL, HFILL }},
            { &hf_gsm_a_rr_thresh_utran_low_present, { "Threshold UTRAN Low", "gsm_a.rr.thresh_utran_low.present", FT_BOOLEAN, BASE_NONE, TFS(&tfs_present_not_present), 0x00, NULL, HFILL }},
            { &hf_gsm_a_rr_utran_qrxlevmin_present, { "UTRAN Qrxlev Min", "gsm_a.rr.utran_qrxlevmin.present", FT_BOOLEAN, BASE_NONE, TFS(&tfs_present_not_present), 0x00, NULL, HFILL }},
            { &hf_gsm_a_rr_eutran_earfcn_present, { "E-UTRAN Neighbour Cells Struct", "gsm_a.rr.eutran_earfcn.present", FT_BOOLEAN, BASE_NONE, TFS(&tfs_present_not_present), 0x00, NULL, HFILL }},
            { &hf_gsm_a_rr_eutran_measurement_bandwidth_present, { "Measurement Bandwidth", "gsm_a.rr.eutran_measurement_bandwidth.present", FT_BOOLEAN, BASE_NONE, TFS(&tfs_present_not_present), 0x00, NULL, HFILL }},
            { &hf_gsm_a_rr_eutran_priority_present, { "E-UTRAN Priority", "gsm_a.rr.eutran_priority.present", FT_BOOLEAN, BASE_NONE, TFS(&tfs_present_not_present), 0x00, NULL, HFILL }},
            { &hf_gsm_a_rr_thresh_eutran_low_present, { "Threshold E-UTRAN Low", "gsm_a.rr.thresh_eutran_low.present", FT_BOOLEAN, BASE_NONE, TFS(&tfs_present_not_present), 0x00, NULL, HFILL }},
            { &hf_gsm_a_rr_eutran_qrxlevmin_present, { "E-UTRAN Qrxlev Min", "gsm_a.rr.eutran_qrxlevmin.present", FT_BOOLEAN, BASE_NONE, TFS(&tfs_present_not_present), 0x00, NULL, HFILL }},
            { &hf_gsm_a_rr_repeated_earfcn, { "Repeated EARFCN", "gsm_a.rr.repeated_earfcn", FT_BOOLEAN, BASE_NONE, TFS(&tfs_present_not_present), 0x00, NULL, HFILL }},
            { &hf_gsm_a_rr_repeated_pcid, { "Repeated PCID", "gsm_a.rr.repeated_pcid", FT_BOOLEAN, BASE_NONE, TFS(&tfs_present_not_present), 0x00, NULL, HFILL }},
            { &hf_gsm_a_rr_eutran_pcid_present, { "TARGET PCID", "gsm_a.rr.repeated_eutran_pcid_present", FT_BOOLEAN, BASE_NONE, TFS(&tfs_present_not_present), 0x00, NULL, HFILL }},
            { &hf_gsm_a_rr_eutran_pcid_bitmap_group_present, { "PCID Bitmap Group", "gsm_a.rr.eutran_pcid_bitmap_group.present", FT_BOOLEAN, BASE_NONE, TFS(&tfs_present_not_present), 0x00, NULL, HFILL }},
            { &hf_gsm_a_rr_pcid_pattern_present, { "PCID Pattern", "gsm_a.rr.pcid_pattern.present", FT_BOOLEAN, BASE_NONE, TFS(&tfs_present_not_present), 0x00, NULL, HFILL }},
            { &hf_gsm_a_rr_repeated_eutran_frequency_index, { "Repeated E-UTRAN Frequency Index", "gsm_a.rr.repeated_eutran_frequency_index", FT_BOOLEAN, BASE_NONE, TFS(&tfs_present_not_present), 0x00, NULL, HFILL }},
            { &hf_gsm_a_rr_repeating_pcid_group, { "Repeating PCID group", "gsm_a.rr.repeating_pcid_group", FT_BOOLEAN, BASE_NONE, TFS(&tfs_present_not_present), 0x00, NULL, HFILL }},
            { &hf_gsm_a_rr_eutran_reporting_quantity, { "E-UTRAN Reporting Quantity", "gsm_a.rr.eutran_reporting_quantity", FT_BOOLEAN, BASE_NONE, TFS(&tfs_rsrq_rsrp), 0x00, NULL, HFILL }},
            { &hf_gsm_a_rr_eutran_reporting, { "Reporting", "gsm_a.rr.eutran_reporting", FT_BOOLEAN, BASE_NONE, TFS(&tfs_3_bit_6_bit), 0x00, NULL, HFILL }},
            { &hf_gsm_a_rr_eutran_fdd_reporting_present, { "E-UTRAN FDD FDD 3 bit Reporting", "gsm_a.rr.eutran_fdd_reporting.present", FT_BOOLEAN, BASE_NONE, TFS(&tfs_present_not_present), 0x00, NULL, HFILL }},
            { &hf_gsm_a_rr_eutran_fdd_reporting_threshold_2_present, { "E-UTRAN FDD Reporting Threshold2", "gsm_a.rr.eutran_fdd_reporting_threshold_2.present", FT_BOOLEAN, BASE_NONE, TFS(&tfs_present_not_present), 0x00, NULL, HFILL }},
            { &hf_gsm_a_rr_eutran_fdd_reporting_offset_present, { "E-EUTRAN FDD Reporting Offset", "gsm_a.rr.eutran_fdd_reporting_offset.present", FT_BOOLEAN, BASE_NONE, TFS(&tfs_present_not_present), 0x00, NULL, HFILL }},
            { &hf_gsm_a_rr_eutran_tdd_reporting_present, { "E-UTRAN TDD TDD 3 bit Reporting", "gsm_a.rr.eutran_tdd_reporting.present", FT_BOOLEAN, BASE_NONE, TFS(&tfs_present_not_present), 0x00, NULL, HFILL }},
            { &hf_gsm_a_rr_eutran_tdd_reporting_threshold_2_present, { "E-UTRAN TDD Reporting Threshold2", "gsm_a.rr.eutran_tdd_reporting_threshold_2.present", FT_BOOLEAN, BASE_NONE, TFS(&tfs_present_not_present), 0x00, NULL, HFILL }},
            { &hf_gsm_a_rr_eutran_tdd_reporting_offset_present, { "E-EUTRAN TDD Reporting Offset", "gsm_a.rr.eutran_tdd_reporting_offset.present", FT_BOOLEAN, BASE_NONE, TFS(&tfs_present_not_present), 0x00, NULL, HFILL }},
            { &hf_gsm_a_rr_eutran_fdd_reporting_threshold, { "E-EUTRAN FDD Reporting Threshold", "gsm_a.rr.eutran_fdd_reporting_threshold", FT_BOOLEAN, BASE_NONE, TFS(&tfs_present_not_present), 0x00, NULL, HFILL }},
            { &hf_gsm_a_rr_eutran_tdd_measurement_report_offset_present, { "E-UTRAN TDD Reporting Offset", "gsm_a.rr.eutran_tdd_measurement_report_offset.present", FT_BOOLEAN, BASE_NONE, TFS(&tfs_present_not_present), 0x00, NULL, HFILL }},
            { &hf_gsm_a_rr_eutran_measurement_parameters_description, { "E-UTRAN Measurement Parameters Description", "gsm_a.rr.eutran_measurement_parameters_description", FT_BOOLEAN, BASE_NONE, TFS(&tfs_present_not_present), 0x00, NULL, HFILL }},
            { &hf_gsm_a_rr_gprs_eutran_measurement_parameters_description, { "GPRS E-UTRAN Measurement Parameters Description", "gsm_a.rr.gprs_eutran_measurement_parameters_description", FT_BOOLEAN, BASE_NONE, TFS(&tfs_present_not_present), 0x00, NULL, HFILL }},
            { &hf_gsm_a_rr_eutran_fdd_reporting, { "E-UTRAN FDD Reporting", "gsm_a.rr.eutran_fdd_reporting", FT_BOOLEAN, BASE_NONE, TFS(&tfs_present_not_present), 0x00, NULL, HFILL }},
            { &hf_gsm_a_rr_eutran_tdd_reporting, { "E-UTRAN TDD Reporting", "gsm_a.rr.eutran_tdd_reporting", FT_BOOLEAN, BASE_NONE, TFS(&tfs_present_not_present), 0x00, NULL, HFILL }},
            { &hf_gsm_a_rr_repeated_eutran_neighbour_cells, { "Repeated E-UTRAN Neighbour Cells", "gsm_a.rr.repeated_eutran_neighbour_cells", FT_BOOLEAN, BASE_NONE, TFS(&tfs_present_not_present), 0x00, NULL, HFILL }},
            { &hf_gsm_a_rr_repeated_eutran_not_allowed_cells, { "Repeated E-UTRAN Not Allowed Cells", "gsm_a.rr.repeated_eutran_not_allowed_cells", FT_BOOLEAN, BASE_NONE, TFS(&tfs_present_not_present), 0x00, NULL, HFILL }},
            { &hf_gsm_a_rr_repeated_eutran_pcid_ta_mapping, { "Repeated E-UTRAN PCID to TA mapping", "gsm_a.rr.repeated_eutran_pcid_ta_mapping", FT_BOOLEAN, BASE_NONE, TFS(&tfs_present_not_present), 0x00, NULL, HFILL }},
            { &hf_gsm_a_rr_measurement_control_parameters_description, { "Measurement Control Parameters Description", "gsm_a.rr.measurement_control_parameters_description", FT_BOOLEAN, BASE_NONE, TFS(&tfs_present_not_present), 0x00, NULL, HFILL }},
            { &hf_gsm_a_rr_eutran_default_measurement_control_eutran_present, { "Default Measurement Control E-UTRAN", "gsm_a.rr.eutran_default_measurement_control_eutran.present", FT_BOOLEAN, BASE_NONE, TFS(&tfs_present_not_present), 0x00, NULL, HFILL }},
            { &hf_gsm_a_rr_repeated_eutran_measurement_control_parameters, { "Repeated E-UTRAN Measurement Control Parameters", "gsm_a.rr.repeated_eutran_measurement_control_parameters", FT_BOOLEAN, BASE_NONE, TFS(&tfs_present_not_present), 0x00, NULL, HFILL }},
            { &hf_gsm_a_rr_serving_cell_priority_parameters_description, { "Serving Cell Priority Parameters Description", "gsm_a.rr.serving_cell_priority_parameters_description", FT_BOOLEAN, BASE_NONE, TFS(&tfs_present_not_present), 0x00, NULL, HFILL }},
            { &hf_gsm_a_rr_3g_priority_parameters_description, { "3G Priority Parameters Description", "gsm_a.rr.3g_priority_parameters_description", FT_BOOLEAN, BASE_NONE, TFS(&tfs_present_not_present), 0x00, NULL, HFILL }},
            { &hf_gsm_a_rr_eutran_parameters_description, { "E-UTRAN Parameters Description", "gsm_a.rr.eutran_parameters_description", FT_BOOLEAN, BASE_NONE, TFS(&tfs_present_not_present), 0x00, NULL, HFILL }},
            { &hf_gsm_a_rr_repeated_csg_psc_split_struct, { "Repeated CSG_PSC_SPLIT struct", "gsm_a.rr.repeated_csg_psc_split_struct", FT_BOOLEAN, BASE_NONE, TFS(&tfs_present_not_present), 0x00, NULL, HFILL }},
            { &hf_gsm_a_rr_psc_present, { "PSC", "gsm_a.rr.psc_present", FT_BOOLEAN, BASE_NONE, TFS(&tfs_present_not_present), 0x00, NULL, HFILL }},
            { &hf_gsm_a_rr_psc_pattern_present, { "PSC Pattern", "gsm_a.rr.psc_pattern.present", FT_BOOLEAN, BASE_NONE, TFS(&tfs_present_not_present), 0x00, NULL, HFILL }},
            { &hf_gsm_a_rr_repeated_utran_frequency_index, { "Repeated UTRAN Frequency Index", "gsm_a.rr.repeated_utran_frequency_index", FT_BOOLEAN, BASE_NONE, TFS(&tfs_present_not_present), 0x00, NULL, HFILL }},
            { &hf_gsm_a_rr_repeated_csg_fdd_uarfcn, { "Repeated CSG FDD UARFCN", "gsm_a.rr.repeated_csg_fdd_uarfcn", FT_BOOLEAN, BASE_NONE, TFS(&tfs_present_not_present), 0x00, NULL, HFILL }},
            { &hf_gsm_a_rr_3g_csg_desc_technology, { "Technology", "gsm_a.rr.3g_csg_desc_technology", FT_BOOLEAN, BASE_NONE, TFS(&tfs_tdd_fdd), 0x00, NULL, HFILL }},
            { &hf_gsm_a_rr_repeated_pcid_group, { "Repeated PCID group", "gsm_a.rr.repeated_pcid_group", FT_BOOLEAN, BASE_NONE, TFS(&tfs_present_not_present), 0x00, NULL, HFILL }},
            { &hf_gsm_a_rr_repeated_csg_pci_split, { "Repeated CSG PCI Split", "gsm_a.rr.repeated_csg_pci_split", FT_BOOLEAN, BASE_NONE, TFS(&tfs_present_not_present), 0x00, NULL, HFILL }},
            { &hf_gsm_a_rr_3g_measurement_control_parameters_description, { "3G Measurement Control Parameters Description", "gsm_a.rr.3g_measurement_control_parameters_description", FT_BOOLEAN, BASE_NONE, TFS(&tfs_present_not_present), 0x00, NULL, HFILL }},
            { &hf_gsm_a_rr_3g_measurement_control_parameters_description_struct, { "3G Measurement Control Parameters Description struct", "gsm_a.rr.3g_measurement_control_parameters_description_struct", FT_BOOLEAN, BASE_NONE, TFS(&tfs_present_not_present), 0x00, NULL, HFILL }},
            { &hf_gsm_a_rr_repeated_utran_measurement_control_parameters_struct, { "Repeated UTRAN Measurement Control Parameters struct", "gsm_a.rr.repeated_utran_measurement_control_parameters_struct", FT_BOOLEAN, BASE_NONE, TFS(&tfs_present_not_present), 0x00, NULL, HFILL }},
            { &hf_gsm_a_rr_measurement_parameters_description, { "Measurement Parameters Description", "gsm_a.rr.measurement_parameters_description", FT_BOOLEAN, BASE_NONE, TFS(&tfs_present_not_present), 0x00, NULL, HFILL }},
            { &hf_gsm_a_rr_gprs_real_time_difference_description, { "GPRS Real Time Difference Description", "gsm_a.rr.gprs_real_time_difference_description", FT_BOOLEAN, BASE_NONE, TFS(&tfs_present_not_present), 0x00, NULL, HFILL }},
            { &hf_gsm_a_rr_gprs_bsic_description, { "GPRS BSIC Description", "gsm_a.rr.gprs_bsic_description", FT_BOOLEAN, BASE_NONE, TFS(&tfs_present_not_present), 0x00, NULL, HFILL }},
            { &hf_gsm_a_rr_gprs_report_priority_description, { "GPRS Report Priority Description", "gsm_a.rr.gprs_report_priority_description", FT_BOOLEAN, BASE_NONE, TFS(&tfs_present_not_present), 0x00, NULL, HFILL }},
            { &hf_gsm_a_rr_gprs_measurement_parameters_description, { "GPRS Measurement Parameters Description", "gsm_a.rr.gprs_measurement_parameters_description", FT_BOOLEAN, BASE_NONE, TFS(&tfs_present_not_present), 0x00, NULL, HFILL }},
            { &hf_gsm_a_rr_nc_measurement_parameters, { "NC Measurement Parameters", "gsm_a.rr.nc_measurement_parameters", FT_BOOLEAN, BASE_NONE, TFS(&tfs_present_not_present), 0x00, NULL, HFILL }},
            { &hf_gsm_a_rr_nc_periods, { "NC Periods", "gsm_a.rr.nc_periods", FT_BOOLEAN, BASE_NONE, TFS(&tfs_present_not_present), 0x00, NULL, HFILL }},
            { &hf_gsm_a_rr_si_2quater_extension_information, { "SI 2quater Extension Information", "gsm_a.rr.si_2quater_extension_information", FT_BOOLEAN, BASE_NONE, TFS(&tfs_present_not_present), 0x00, NULL, HFILL }},
            { &hf_gsm_a_rr_ccn_support_description, { "CCN Support Description", "gsm_a.rr.ccn_support_description", FT_BOOLEAN, BASE_NONE, TFS(&tfs_present_not_present), 0x00, NULL, HFILL }},
            { &hf_gsm_a_rr_3g_neighbour_cell_description, { "3G Neighbour Cell Description", "gsm_a.rr.3g_neighbour_cell_description", FT_BOOLEAN, BASE_NONE, TFS(&tfs_present_not_present), 0x00, NULL, HFILL }},
            { &hf_gsm_a_rr_absolute_index_start_emr_present, { "Absolute Index Start EMR", "gsm_a.rr.absolute_index_start_emr.present", FT_BOOLEAN, BASE_NONE, TFS(&tfs_present_not_present), 0x00, NULL, HFILL }},
            { &hf_gsm_a_rr_fdd_information, { "FDD Information", "gsm_a.rr.fdd_information", FT_BOOLEAN, BASE_NONE, TFS(&tfs_present_not_present), 0x00, NULL, HFILL }},
            { &hf_gsm_a_rr_tdd_information, { "TDD Information", "gsm_a.rr.tdd_information", FT_BOOLEAN, BASE_NONE, TFS(&tfs_present_not_present), 0x00, NULL, HFILL }},
            { &hf_gsm_a_rr_gprs_3g_measurement_parameters_description, { "GPRS 3G Measurement Parameters Description", "gsm_a.rr.gprs_3g_measurement_parameters_description", FT_BOOLEAN, BASE_NONE, TFS(&tfs_present_not_present), 0x00, NULL, HFILL }},
            { &hf_gsm_a_rr_reporting_quantity_present, { "Reporting Quantity", "gsm_a.rr.reporting_quantity.present", FT_BOOLEAN, BASE_NONE, TFS(&tfs_ec_no_rscp), 0x00, NULL, HFILL }},
            { &hf_gsm_a_rr_fdd_reporting_parameters, { "FDD Reporting Parameters", "gsm_a.rr.fdd_reporting_parameters", FT_BOOLEAN, BASE_NONE, TFS(&tfs_present_not_present), 0x00, NULL, HFILL }},
            { &hf_gsm_a_rr_tdd_multirat_reporting_present, { "TDD Multirat Reporting", "gsm_a.rr.tdd_multirat_reporting.present", FT_BOOLEAN, BASE_NONE, TFS(&tfs_present_not_present), 0x00, NULL, HFILL }},
            { &hf_gsm_a_rr_tdd_reporting_parameters, { "TDD Reporting Parameters", "gsm_a.rr.tdd_reporting_parameters", FT_BOOLEAN, BASE_NONE, TFS(&tfs_present_not_present), 0x00, NULL, HFILL }},
            { &hf_gsm_a_rr_3g_additional_measurement_parameters_description_2, { "3G Additional Measurement Parameters Description 2", "gsm_a.rr.3g_additional_measurement_parameters_description_2", FT_BOOLEAN, BASE_NONE, TFS(&tfs_present_not_present), 0x00, NULL, HFILL }},
            { &hf_gsm_a_rr_700_reporting, { "700 Reporting", "gsm_a.rr.700_reporting", FT_BOOLEAN, BASE_NONE, TFS(&tfs_present_not_present), 0x00, NULL, HFILL }},
            { &hf_gsm_a_rr_810_reporting, { "810 Reporting", "gsm_a.rr.810_reporting", FT_BOOLEAN, BASE_NONE, TFS(&tfs_present_not_present), 0x00, NULL, HFILL }},
            { &hf_gsm_a_rr_3g_supplementary_parameters_description, { "3G Supplementary Parameters Description", "gsm_a.rr.3g_supplementary_parameters_description", FT_BOOLEAN, BASE_NONE, TFS(&tfs_present_not_present), 0x00, NULL, HFILL }},
            { &hf_gsm_a_rr_priority_and_eutran_param_description, { "Priority and E-UTRAN Parameters Description", "gsm_a.rr.priority_and_eutran_param_description", FT_BOOLEAN, BASE_NONE, TFS(&tfs_present_not_present), 0x00, NULL, HFILL }},
            { &hf_gsm_a_rr_3g_csg_description, { "3G CSG Description", "gsm_a.rr.3g_csg_description", FT_BOOLEAN, BASE_NONE, TFS(&tfs_present_not_present), 0x00, NULL, HFILL }},
            { &hf_gsm_a_rr_lsa_id_type, { "Type", "gsm_a.rr.lsa_id_type", FT_BOOLEAN, BASE_NONE, TFS(&tfs_short_lsa_id_lsa_id), 0x00, NULL, HFILL }},
            { &hf_gsm_a_rr_additional_lsa_id, { "Additional LSA ID", "gsm_a.rr.additional_lsa_id", FT_BOOLEAN, BASE_NONE, TFS(&tfs_present_not_present), 0x00, NULL, HFILL }},
            { &hf_gsm_a_rr_si13alt_position_present, { "SI3 alt position", "gsm_a.rr.si13alt_position.present", FT_BOOLEAN, BASE_NONE, TFS(&tfs_present_not_present), 0x00, NULL, HFILL }},
            { &hf_gsm_a_call_prio_present, { "Call Priority", "gsm_a.call_prio.present", FT_BOOLEAN, BASE_NONE, TFS(&tfs_present_not_present), 0x00, NULL, HFILL }},
            { &hf_gsm_a_rr_amr_config_present, { "AMR Config", "gsm_a.rr.amr_config.present", FT_BOOLEAN, BASE_NONE, TFS(&tfs_present_not_present), 0x00, NULL, HFILL }},
            { &hf_gsm_a_rr_rand_bit_stream_ind, { "Random Bit Stream", "gsm_a.rr.rand_bit_stream.ind", FT_BOOLEAN, BASE_NONE, TFS(&tfs_present_not_present), 0x00, NULL, HFILL }},
            { &hf_gsm_a_rr_rfl_number_present, { "RFL number list", "gsm_a.rr.rfl_number.present", FT_BOOLEAN, BASE_NONE, TFS(&tfs_present_not_present), 0x00, NULL, HFILL }},
            { &hf_gsm_a_rr_gprs_mobile_allocation, { "MA", "gsm_a.rr.gprs_mobile_allocation", FT_BOOLEAN, BASE_NONE, TFS(&tfs_not_present_present), 0x00, NULL, HFILL }},
            { &hf_gsm_a_rr_arfcn_index_list, { "ARFCN index list", "gsm_a.rr.arfcn_index_list", FT_BOOLEAN, BASE_NONE, TFS(&tfs_present_not_present), 0x00, NULL, HFILL }},
            { &hf_gsm_a_rr_si13_change_mark_present, { "SI13 Change Mark", "gsm_a.rr.si13_change_mark.present", FT_BOOLEAN, BASE_NONE, TFS(&tfs_present_not_present), 0x00, NULL, HFILL }},
            { &hf_gsm_a_rr_pbcch, { "PBCCH", "gsm_a.rr.pbcch", FT_BOOLEAN, BASE_NONE, TFS(&tfs_present_not_present_in_cell), 0x00, NULL, HFILL }},
            { &hf_gsm_a_rr_maio_present, { "MAIO", "gsm_a.rr.maio.present", FT_BOOLEAN, BASE_NONE, TFS(&tfs_present_not_present), 0x00, NULL, HFILL }},
            { &hf_gsm_a_rr_arfcn_present, { "ARFCN", "gsm_a.rr.arfcn.present", FT_BOOLEAN, BASE_NONE, TFS(&tfs_present_not_present), 0x00, NULL, HFILL }},
            { &hf_gsm_a_rr_lb_ms_txpwr_max_cch_present, { "LB MS TXPWR MAX CCH", "gsm_a.rr.lb_ms_txpwr_max_cch.present", FT_BOOLEAN, BASE_NONE, TFS(&tfs_present_not_present), 0x00, NULL, HFILL }},
            { &hf_gsm_a_rr_real_time_difference_description, { "Real Time Difference Description", "gsm_a.rr.real_time_difference_description", FT_BOOLEAN, BASE_NONE, TFS(&tfs_present_not_present), 0x00, NULL, HFILL }},
            { &hf_gsm_a_rr_bsic_description, { "BSIC Description", "gsm_a.rr.bsic_description", FT_BOOLEAN, BASE_NONE, TFS(&tfs_present_not_present), 0x00, NULL, HFILL }},
            { &hf_gsm_a_rr_report_priority_description, { "Report Priority Description", "gsm_a.rr.report_priority_description", FT_BOOLEAN, BASE_NONE, TFS(&tfs_present_not_present), 0x00, NULL, HFILL }},
            { &hf_gsm_a_rr_future_extensions_of_the_2g_parameters, { "Future extensions of the 2G parameters", "gsm_a.rr.future_extensions_of_the_2g_parameters", FT_BOOLEAN, BASE_NONE, TFS(&tfs_present_not_present), 0x00, NULL, HFILL }},
            { &hf_gsm_a_rr_3g_wait_present, { "3G Wait", "gsm_a.rr.3g_wait.present", FT_BOOLEAN, BASE_NONE, TFS(&tfs_present_not_present), 0x00, NULL, HFILL }},
            { &hf_gsm_a_rr_index_start_3g_present, { "Index Start 3G", "gsm_a.rr.index_start_3g.present", FT_BOOLEAN, BASE_NONE, TFS(&tfs_present_not_present), 0x00, NULL, HFILL }},
            { &hf_gsm_a_rr_cdma2000_description, { "CDMA2000 Description", "gsm_a.rr.cdma2000_description", FT_BOOLEAN, BASE_NONE, TFS(&tfs_present_not_present), 0x00, NULL, HFILL }},
            { &hf_gsm_a_rr_additional_information_for_3x_auxiliary_pilot, { "Additional information for 3X Auxiliary Pilot", "gsm_a.rr.additional_information_for_3x_auxiliary_pilot", FT_BOOLEAN, BASE_NONE, TFS(&tfs_present_not_present), 0x00, NULL, HFILL }},
            { &hf_gsm_a_rr_3g_reporting_quantity, { "3G Reporting Quantity", "gsm_a.rr.3g_reporting_quantity", FT_BOOLEAN, BASE_NONE, TFS(&tfs_ec_no_rscp), 0x00, NULL, HFILL }},
            { &hf_gsm_a_rr_fdd_multirat_reporting_present, { "FDD Multirat Reporting", "gsm_a.rr.fdd_multirat_reporting.present", FT_BOOLEAN, BASE_NONE, TFS(&tfs_present_not_present), 0x00, NULL, HFILL }},
            { &hf_gsm_a_rr_fdd_reporting_offset_present, { "FDD Reporting Offset", "gsm_a.rr.fdd_reporting_offset.present", FT_BOOLEAN, BASE_NONE, TFS(&tfs_present_not_present), 0x00, NULL, HFILL }},
            { &hf_gsm_a_rr_tdd_reporting_offset_present, { "TDD Reporting Offset", "gsm_a.rr.tdd_reporting_offset.present", FT_BOOLEAN, BASE_NONE, TFS(&tfs_present_not_present), 0x00, NULL, HFILL }},
            { &hf_gsm_a_rr_cdma2000_multirat_reporting, { "CDMA2000 Multirat Reporting", "gsm_a.rr.cdma2000_multirat_reporting", FT_BOOLEAN, BASE_NONE, TFS(&tfs_present_not_present), 0x00, NULL, HFILL }},
            { &hf_gsm_a_rr_cdma2000_reporting_threshold, { "CDMA2000 Reporting Threshold", "gsm_a.rr.cdma2000_reporting_threshold", FT_BOOLEAN, BASE_NONE, TFS(&tfs_present_not_present), 0x00, NULL, HFILL }},
            { &hf_gsm_a_rr_eutran_csg_description, { "E-UTRAN CSG Description", "gsm_a.rr.eutran_csg_description", FT_BOOLEAN, BASE_NONE, TFS(&tfs_present_not_present), 0x00, NULL, HFILL }},
            { &hf_gsm_a_rr_serving_cell_data, { "Serving cell data", "gsm_a.rr.serving_cell_data", FT_BOOLEAN, BASE_NONE, TFS(&tfs_present_not_present), 0x00, NULL, HFILL }},
            { &hf_gsm_a_rr_repeated_invalid_bsic_information, { "Repeated Invalid BSIC Information", "gsm_a.rr.repeated_invalid_bsic_information", FT_BOOLEAN, BASE_NONE, TFS(&tfs_present_not_present), 0x00, NULL, HFILL }},
            { &hf_gsm_a_rr_bitmap_type_reporting, { "Bitmap Type Reporting", "gsm_a.rr.bitmap_type_reporting", FT_BOOLEAN, BASE_NONE, TFS(&tfs_present_not_present), 0x00, NULL, HFILL }},
            { &hf_gsm_a_rr_e_utran_measurement_report, { "E-UTRAN Measurement Report", "gsm_a.rr.e_utran_measurement_report", FT_BOOLEAN, BASE_NONE, TFS(&tfs_present_not_present), 0x00, NULL, HFILL }},
            { &hf_gsm_a_rr_repeat_eutran_desc, { "Repeating E-UTRAN Description struct", "gsm_a.rr.repeat_eutran_desc", FT_BOOLEAN, BASE_NONE, TFS(&tfs_present_not_present), 0x00, NULL, HFILL }},
            { &hf_gsm_a_rr_peo_dsc_and_rcc_present, { "PEO DSC and RCC", "gsm_a.rr.peo_dsc_and_rcc_present", FT_BOOLEAN, BASE_NONE, TFS(&tfs_present_not_present), 0x00, NULL, HFILL } },
            { &hf_gsm_a_rr_c1_delta_present, { "C1 DELTA", "gsm_a.rr.c1_delta_present", FT_BOOLEAN, BASE_NONE, TFS(&tfs_present_not_present), 0x00, NULL, HFILL } },
            { &hf_gsm_a_rr_ul_xtti_tbf_assignment, { "TTI mode for uplink TBF", "gsm_a.rr.ul_xtti_tbf_assignment", FT_BOOLEAN, BASE_NONE, TFS(&gsm_a_rr_ul_xtti_tbf_assignment_vals), 0x00, NULL, HFILL } },
            { &hf_gsm_a_rr_dl_xtti_tbf_assignment, { "TTI mode for downlink TBF", "gsm_a.rr.dl_xtti_tbf_assignment", FT_BOOLEAN, BASE_NONE, TFS(&gsm_a_rr_dl_xtti_tbf_assignment_vals), 0x00, NULL, HFILL } },
            { &hf_gsm_a_rr_fanr_act_state, { "FANR state", "gsm_a.rr.fanr_act_state", FT_BOOLEAN, BASE_NONE, TFS(&gsm_a_rr_fanr_act_state_vals), 0x00, NULL, HFILL } },
            { &hf_gsm_a_rr_encoding_selection, { "Selected encoding", "gsm_a.rr.encoding_selection", FT_BOOLEAN, BASE_NONE, TFS(&gsm_a_rr_encoding_selection_vals), 0x00, NULL, HFILL } },
            { &hf_gsm_a_rr_nof_pdch_pairs, { "Number of assigned PDCH pairs", "gsm_a.rr.nof_pdch_pairs", FT_BOOLEAN, BASE_NONE, TFS(&gsm_a_rr_nof_pdch_pairs_vals), 0x00, NULL, HFILL } },
            { &hf_gsm_a_rr_npm_transfer_time_present, { "NPM Transfer Time", "gsm_a.rr.npm_transfer_time_present", FT_BOOLEAN, BASE_NONE, TFS(&tfs_present_not_present), 0x00, NULL, HFILL } },
            { &hf_gsm_a_rr_eab_parameters,{ "EAB parameters structure", "gsm_a.rr.eab_parameters", FT_BOOLEAN, BASE_NONE, TFS(&tfs_present_not_present), 0x00, NULL, HFILL } },
            /* gsm_rr_csn_HL_flag() fields */
            { &hf_gsm_a_rr_selection_parameters, { "Selection Parameters", "gsm_a.rr.selection_parameters", FT_BOOLEAN, BASE_NONE, TFS(&tfs_present_not_present), 0x00, NULL, HFILL }},
            { &hf_gsm_a_rr_break_indicator, { "Break Indicator", "gsm_a.rr.break_indicator", FT_BOOLEAN, BASE_NONE, TFS(&tfs_break_indicator), 0x00, NULL, HFILL }},
            { &hf_gsm_a_rr_multiple_tbf_procedures, { "Multiple TBF Capability procedures in A/Gb mode", "gsm_a.rr.multiple_tbf_capability", FT_BOOLEAN, BASE_NONE, TFS(&tfs_supported_not_supported), 0x00, NULL, HFILL }},
            { &hf_gsm_a_rr_additions_in_rel_7, { "Additions in Rel-7", "gsm_a.rr.additions_in_rel_7", FT_BOOLEAN, BASE_NONE, TFS(&tfs_present_not_present), 0x00, NULL, HFILL }},
            { &hf_gsm_a_rr_additions_in_rel_9, { "Additions in Rel-9", "gsm_a.rr.additions_in_rel_9", FT_BOOLEAN, BASE_NONE, TFS(&tfs_present_not_present), 0x00, NULL, HFILL }},
            { &hf_gsm_a_rr_additions_in_rel_6, { "Additions in Rel-6", "gsm_a.rr.additions_in_rel_6", FT_BOOLEAN, BASE_NONE, TFS(&tfs_present_not_present), 0x00, NULL, HFILL }},
            { &hf_gsm_a_rr_additions_in_rel_10, { "Additions in Rel-10", "gsm_a.rr.additions_in_rel_10", FT_BOOLEAN, BASE_NONE, TFS(&tfs_present_not_present), 0x00, NULL, HFILL } },
            { &hf_gsm_a_rr_additions_in_rel_13, { "Additions in Rel-13", "gsm_a.rr.additions_in_rel_13", FT_BOOLEAN, BASE_NONE, TFS(&tfs_present_not_present), 0x00, NULL, HFILL } },
            { &hf_gsm_a_rr_additions_in_r99, { "Additions in R99", "gsm_a.rr.additions_in_r99", FT_BOOLEAN, BASE_NONE, TFS(&tfs_present_not_present), 0x00, NULL, HFILL }},
            { &hf_gsm_a_rr_first_discriminator_bit, { "First Discriminator Bit", "gsm_a.rr.first_discriminator_bit", FT_BOOLEAN, BASE_NONE, TFS(&tfs_high_low), 0x00, NULL, HFILL }},
            { &hf_gsm_a_rr_second_discriminator_bit, { "Second Discriminator Bit", "gsm_a.rr.second_discriminator_bit", FT_BOOLEAN, BASE_NONE, TFS(&tfs_high_low), 0x00, NULL, HFILL }},
            { &hf_gsm_a_rr_a_compressed_inter_rat_handover_info, { "A compressed version of the INTER RAT HANDOVER INFO message", "gsm_a.rr.a_compressed_inter_rat_handover_info", FT_BOOLEAN, BASE_NONE, TFS(&tfs_shall_be_shall_not_be_used), 0x00, NULL, HFILL }},
            { &hf_gsm_a_rr_nln_pch_present, { "NLN(PCH)", "gsm_a.rr.nln_pch.present", FT_BOOLEAN, BASE_NONE, TFS(&tfs_present_not_present), 0x00, NULL, HFILL }},
            { &hf_gsm_a_call_prio1, { "Priority 1", "gsm_a.call_prio1.present", FT_BOOLEAN, BASE_NONE, TFS(&tfs_present_not_present), 0x00, NULL, HFILL }},
            { &hf_gsm_a_call_prio2, { "Priority 2", "gsm_a.call_prio2.present", FT_BOOLEAN, BASE_NONE, TFS(&tfs_present_not_present), 0x00, NULL, HFILL }},
            { &hf_gsm_a_rr_group_call_information, { "Group Call Information", "gsm_a.rr.group_call_information", FT_BOOLEAN, BASE_NONE, TFS(&tfs_present_not_present), 0x00, NULL, HFILL }},
            { &hf_gsm_a_rr_packet_page_indication_1, { "Packet Page Indication 1", "gsm_a.rr.packet_page_indication_1", FT_BOOLEAN, BASE_NONE, TFS(&tfs_for_gprs_for_rr_connection_establishment), 0x00, NULL, HFILL }},
            { &hf_gsm_a_rr_packet_page_indication_2, { "Packet Page Indication 2", "gsm_a.rr.packet_page_indication_2", FT_BOOLEAN, BASE_NONE, TFS(&tfs_for_gprs_for_rr_connection_establishment), 0x00, NULL, HFILL }},
            { &hf_gsm_a_rr_chnl_needed_ch3_present, { "Channel Needed 3", "gsm_a.rr.chnl_needed_ch3.present", FT_BOOLEAN, BASE_NONE, TFS(&tfs_present_not_present), 0x00, NULL, HFILL }},
            { &hf_gsm_a_call_prio3, { "Priority 3", "gsm_a.call_prio3.present", FT_BOOLEAN, BASE_NONE, TFS(&tfs_present_not_present), 0x00, NULL, HFILL }},
            { &hf_gsm_a_rr_packet_paging_procedure_1, { "Packet Paging Procedure 1", "gsm_a.rr.packet_paging_procedure_1", FT_BOOLEAN, BASE_NONE, TFS(&tfs_for_gprs_for_rr_connection_establishment), 0x00, NULL, HFILL }},
            { &hf_gsm_a_rr_packet_paging_procedure_2, { "Packet Paging Procedure 2", "gsm_a.rr.packet_paging_procedure_2", FT_BOOLEAN, BASE_NONE, TFS(&tfs_for_gprs_for_rr_connection_establishment), 0x00, NULL, HFILL }},
            { &hf_gsm_a_rr_packet_paging_procedure_3, { "Packet Paging Procedure 3", "gsm_a.rr.packet_paging_procedure_3", FT_BOOLEAN, BASE_NONE, TFS(&tfs_for_gprs_for_rr_connection_establishment), 0x00, NULL, HFILL }},
            { &hf_gsm_a_rr_additions_in_release_6_present, { "Additions in release 6", "gsm_a.rr.additions_in_release_6.present", FT_BOOLEAN, BASE_NONE, TFS(&tfs_present_not_present), 0x00, NULL, HFILL }},
            { &hf_gsm_a_rr_chnl_needed_ch3and4, { "Channel Needed 3 & 4", "gsm_a.rr.chnl_needed_ch3and4", FT_BOOLEAN, BASE_NONE, TFS(&tfs_present_not_present), 0x00, NULL, HFILL }},
            { &hf_gsm_a_call_prio4, { "Priority 4", "gsm_a.call_prio4.present", FT_BOOLEAN, BASE_NONE, TFS(&tfs_present_not_present), 0x00, NULL, HFILL }},
            { &hf_gsm_a_rr_nch_position_present, { "NCH position", "gsm_a.rr.nch_position.present", FT_BOOLEAN, BASE_NONE, TFS(&tfs_present_not_present), 0x00, NULL, HFILL }},
            { &hf_gsm_a_rr_si2ter_mp_change_mark_present, { "MP Changemark", "gsm_a.rr.si2ter_mp_change_mark.present", FT_BOOLEAN, BASE_NONE, TFS(&tfs_present_not_present), 0x00, NULL, HFILL }},
            { &hf_gsm_a_rr_additions_in_rel_5, { "Additions in Rel-5", "gsm_a.rr.additions_in_rel_5", FT_BOOLEAN, BASE_NONE, TFS(&tfs_present_not_present), 0x00, NULL, HFILL }},
            { &hf_gsm_a_rr_additions_in_rel_8, { "Additions in Rel-8", "gsm_a.rr.additions_in_rel_8", FT_BOOLEAN, BASE_NONE, TFS(&tfs_present_not_present), 0x00, NULL, HFILL }},
            { &hf_gsm_a_rr_power_offset_present, { "Optional Power Offset", "gsm_a.rr.power_offset.present", FT_BOOLEAN, BASE_NONE, TFS(&tfs_present_not_present), 0x00, NULL, HFILL }},
            { &hf_gsm_a_rr_system_information_type_2ter, { "SYSTEM INFORMATION TYPE 2ter", "gsm_a.rr.system_information_type_2ter", FT_BOOLEAN, BASE_NONE, TFS(&tfs_available_not_available), 0x00, NULL, HFILL }},
            { &hf_gsm_a_rr_early_classmark_sending, { "Early Classmark Sending", "gsm_a.rr.early_classmark_sending", FT_BOOLEAN, BASE_NONE, TFS(&tfs_allowed_not_allowed), 0x00, NULL, HFILL }},
            { &hf_gsm_a_rr_scheduling_if_and_where, { "Scheduling if and where", "gsm_a.rr.scheduling_if_and_where", FT_BOOLEAN, BASE_NONE, TFS(&tfs_present_not_present), 0x00, NULL, HFILL }},
            { &hf_gsm_a_rr_gprs_indicator, { "GPRS Indicator", "gsm_a.rr.gprs_indicator", FT_BOOLEAN, BASE_NONE, TFS(&tfs_present_not_present), 0x00, NULL, HFILL }},
            { &hf_gsm_a_rr_3g_early_classmark_sending_restriction, { "3G Early Classmark Sending Restriction", "gsm_a.rr.3g_early_classmark_sending_restriction", FT_BOOLEAN, BASE_NONE, TFS(&tfs_3g_early_classmark_sending_restriction), 0x00, NULL, HFILL }},
            { &hf_gsm_a_rr_si2quater_indicator, { "SI2quater Indicator", "gsm_a.rr.si2quater_indicator", FT_BOOLEAN, BASE_NONE, TFS(&tfs_present_not_present), 0x00, NULL, HFILL }},
            { &hf_gsm_a_rr_si21_indicator,{ "SI21 Indicator", "gsm_a.rr.si21_indicator", FT_BOOLEAN, BASE_NONE, TFS(&tfs_present_not_present), 0x00, NULL, HFILL } },
            { &hf_gsm_a_rr_si4_rest_octets_s, { "SI4 Rest Octets_S", "gsm_a.rr.si4_rest_octets_s", FT_BOOLEAN, BASE_NONE, TFS(&tfs_present_not_present), 0x00, NULL, HFILL }},
            { &hf_gsm_a_rr_lsa_parameters, { "LSA Parameters", "gsm_a.rr.lsa_parameters", FT_BOOLEAN, BASE_NONE, TFS(&tfs_present_not_present), 0x00, NULL, HFILL }},
            { &hf_gsm_a_rr_cell_id_present, { "Cell Identity", "gsm_a.rr.cell_id.present", FT_BOOLEAN, BASE_NONE, TFS(&tfs_present_not_present), 0x00, NULL, HFILL }},
            { &hf_gsm_a_rr_lsa_id_information, { "LSA ID information", "gsm_a.rr.lsa_id_information", FT_BOOLEAN, BASE_NONE, TFS(&tfs_present_not_present), 0x00, NULL, HFILL }},
            { &hf_gsm_a_rr_cbq3_present, { "CBQ3", "gsm_a.rr.cbq3.present", FT_BOOLEAN, BASE_NONE, TFS(&tfs_present_not_present), 0x00, NULL, HFILL }},
            { &hf_gsm_a_rr_pch_and_nch_info, { "PCH and NCH Info", "gsm_a.rr.pch_and_nch_info", FT_BOOLEAN, BASE_NONE, TFS(&tfs_present_not_present), 0x00, NULL, HFILL }},
            { &hf_gsm_a_rr_vbs_vgcs_options, { "VBS/VGCS options", "gsm_a.rr.vbs_vgcs_options", FT_BOOLEAN, BASE_NONE, TFS(&tfs_present_not_present), 0x00, NULL, HFILL }},
            { &hf_gsm_a_rr_dtm, { "DTM", "gsm_a.rr.dtm", FT_BOOLEAN, BASE_NONE, TFS(&tfs_supported_in_serving_cell_not_supported_in_serving_cell), 0x00, NULL, HFILL }},
            { &hf_gsm_a_rr_gprs_ms_txpwr_max_ccch_present, { "GPRS MS PWR MAX CCCH", "gsm_a.rr.gprs_ms_txpwr_max_ccch.present", FT_BOOLEAN, BASE_NONE, TFS(&tfs_present_not_present), 0x00, NULL, HFILL }},
            { &hf_gsm_a_rr_mbms_procedures, { "MBMS Procedures", "gsm_a.rr.mbms_procedures", FT_BOOLEAN, BASE_NONE, TFS(&tfs_supported_not_supported), 0x00, NULL, HFILL }},
            { &hf_gsm_a_rr_si13_contents, { "SI13 contents", "gsm_a.rr.si13_contents", FT_BOOLEAN, BASE_NONE, TFS(&tfs_present_not_present), 0x00, NULL, HFILL }},
            { &hf_gsm_a_rr_additions_in_rel_4, { "Additions in Rel-4", "gsm_a.rr.additions_in_rel_4", FT_BOOLEAN, BASE_NONE, TFS(&tfs_present_not_present), 0x00, NULL, HFILL }},
            { &hf_gsm_a_rr_si_change_alt, { "SI CHANGE ALT", "gsm_a.rr.si_change_alt", FT_BOOLEAN, BASE_NONE, TFS(&gsm_si_change_alt_value), 0x00, NULL, HFILL } },

            { &hf_gsm_a_rr_cs_tsc_set, { "CS Domain TSC Set", "gsm_a.rr.cs_tsc_set", FT_UINT8, BASE_DEC, VALS(gsm_a_rr_cs_tsc_set_vals), 0x03, NULL, HFILL } },
            { &hf_gsm_a_rr_ps_sd_tsc_ass, { "Secondary PS Domain TSC Assigned", "gsm_a.rr.ps_sd_tsc_ass", FT_BOOLEAN, 8, TFS(&tfs_yes_no), 0x04, NULL, HFILL } },
            { &hf_gsm_a_rr_ps_pd_tsc_set, { "Primary PS Domain TSC Set", "gsm_a.rr.ps_pd_tsc_set", FT_UINT8, BASE_DEC, VALS(gsm_a_rr_ps_tsc_set_vals), 0x08, NULL, HFILL } },
            { &hf_gsm_a_rr_ps_sd_tsc_set, { "Secondary PS Domain TSC Set", "gsm_a.rr.ps_sd_tsc_set", FT_UINT8, BASE_DEC, VALS(gsm_a_rr_ps_tsc_set_vals), 0x10, NULL, HFILL } },
            { &hf_gsm_a_rr_ps_sd_tsc_val, { "Secondary PS Domain TSC Value", "gsm_a.rr.ps_sd_tsc_val", FT_UINT8, BASE_DEC, NULL, 0xe0, NULL, HFILL } },
        };

    static hf_register_info hf_rr_short_pd[] =
        {
           { &hf_gsm_a_rr_short_pd,
             { "Radio Resources Short Protocol Discriminator", "gsm_a.rr.short_pd",
               FT_UINT8, BASE_HEX, NULL, 0x0,
               NULL, HFILL }
           },
            { &hf_gsm_a_rr_short_pd_msg_type,
              { "Radio Resources Short PD Message Type", "gsm_a.rr.short_pd_type",
                FT_UINT8, BASE_HEX, VALS(gsm_a_rr_short_pd_msg_strings), 0x0,
                NULL, HFILL }
            },
            { &hf_gsm_a_rr_short_l2_header,
              { "Radio Resources Short L2 Header", "gsm_a.rr.short_l2_header",
                FT_UINT8, BASE_HEX, NULL, 0x0,
                NULL, HFILL }
            },
            { &hf_gsm_a_rr_ra_est_cause,
              { "Establishment Cause", "gsm_a.rr.ra_est_cause",
                FT_UINT8, BASE_CUSTOM, CF_FUNC(ra_est_cause_convert), 0x0,
                NULL, HFILL }
            },
            { &hf_gsm_a_rr_ra_rand_ref,
              { "Random Reference", "gsm_a.rr.ra_rand_ref",
                FT_UINT8, BASE_CUSTOM, CF_FUNC(ra_rand_ref_convert), 0x0,
                NULL, HFILL }
            }
        };

    /* Setup protocol subtree array */
#define NUM_INDIVIDUAL_ELEMS    6
    int *ett[NUM_INDIVIDUAL_ELEMS +
              NUM_GSM_DTAP_MSG_RR +
              NUM_GSM_RR_ELEM +
              NUM_GSM_RR_REST_OCTETS_ELEM +
              NUM_GSM_SACCH_MSG_RR];

    static ei_register_info ei[] = {
        { &ei_gsm_a_rr_ie_overrun, { "gsm_a.rr.ie_overrun", PI_MALFORMED, PI_ERROR, "IE over-runs stated length", EXPFILL }},
        { &ei_gsm_a_rr_ie_underrun, { "gsm_a.rr.ie_underrun", PI_COMMENTS_GROUP, PI_NOTE, "IE under-runs stated length", EXPFILL }},
        { &ei_gsm_a_rr_data_not_dissected, { "gsm_a.rr.data_not_dissected", PI_UNDECODED, PI_WARN, "Not dissected yet", EXPFILL }},
        { &ei_gsm_a_rr_unknown_version, { "gsm_a.rr.unknown_version", PI_PROTOCOL, PI_WARN, "Unknown version", EXPFILL }},
        { &ei_gsm_a_rr_extraneous_data, { "gsm_a.rr.extraneous_data", PI_PROTOCOL, PI_NOTE, "Extraneous Data, dissector bug or later version spec (report to wireshark.org)", EXPFILL }},
        { &ei_gsm_a_rr_missing_mandatory_element, { "gsm_a.rr.missing_mandatory_element", PI_PROTOCOL, PI_ERROR, "Missing Mandatory element, rest of dissection is suspect", EXPFILL }},
    };

    module_t *gsm_a_rr_module;
    expert_module_t* expert_a_rr;

    ett[0] = &ett_ccch_msg;
    ett[1] = &ett_ccch_oct_1;
    ett[2] = &ett_sacch_msg;
    ett[3] = &ett_ec_ccch_msg;
    ett[4] = &ett_apdu;
    ett[5] = &ett_rach_msg;

    last_offset = NUM_INDIVIDUAL_ELEMS;

    for (i=0; i < NUM_GSM_DTAP_MSG_RR; i++, last_offset++)
    {
        ett[last_offset] = &ett_gsm_dtap_msg_rr[i];
    }

    for (i=0; i < NUM_GSM_RR_ELEM; i++, last_offset++)
    {
        ett[last_offset] = &ett_gsm_rr_elem[i];
    }

    for (i=0; i < NUM_GSM_RR_REST_OCTETS_ELEM; i++, last_offset++)
    {
        ett[last_offset] = &ett_gsm_rr_rest_octets_elem[i];
    }

    for (i=0; i < NUM_GSM_SACCH_MSG_RR; i++, last_offset++)
    {
        ett[last_offset] = &ett_gsm_sacch_msg_rr[i];
    }

    /* Register the protocol name and description */
    proto_a_rr =
        proto_register_protocol("GSM A-I/F Radio Resource Management", "GSM RR", "gsm_a.rr");

    proto_register_field_array(proto_a_rr, hf, array_length(hf));
    expert_a_rr = expert_register_protocol(proto_a_rr);
    expert_register_field_array(expert_a_rr, ei, array_length(ei));

    /* Register the protocol name and description */
    proto_a_ccch =
        proto_register_protocol("GSM CCCH", "GSM CCCH", "gsm_a.ccch");

    /* subdissector code */
    register_dissector("gsm_a_ccch", dissect_ccch, proto_a_ccch);

    /* Register the protocol name and description */
    proto_a_rach =
        proto_register_protocol("GSM RACH", "GSM RACH", "gsm_a.rach");

    /* subdissector code */
    register_dissector("gsm_a_rach", dissect_rach, proto_a_rach);

    /* Register the protocol name and description */
    proto_a_sacch =
        proto_register_protocol("GSM SACCH", "GSM SACCH", "gsm_a.sacch");

    proto_register_field_array(proto_a_sacch, hf_rr_short_pd, array_length(hf_rr_short_pd));

    /* subdissector code */
    register_dissector("gsm_a_sacch", dissect_sacch, proto_a_sacch);
    /* Register the protocol name and description */

    proto_a_ec_ccch =
        proto_register_protocol("GSM EC-CCCH", "GSM EC-CCCH", "gsm_a.ec_ccch");
    /* subdissector code */
    register_dissector("gsm_a_ec_ccch", dissect_ec_ccch, proto_a_ec_ccch);

    /* subtree array (for both sub-dissectors) */
    proto_register_subtree_array(ett, array_length(ett));

    /* Register configuration options */
    gsm_a_rr_module = prefs_register_protocol(proto_a_rr, NULL);
    prefs_register_uint_preference(gsm_a_rr_module, "nri_length", "NRI length",
                                   "Whether to decode NRI in TLLI. NRI is not used if length is zero",
                                   10, &gsm_a_rr_nri_length);
}

void
proto_reg_handoff_gsm_a_rr(void)
{
    rrc_irat_ho_info_handle = find_dissector_add_dependency("rrc.irat.irat_ho_info", proto_a_rr);
    rrc_irat_ho_to_utran_cmd_handle = find_dissector_add_dependency("rrc.irat.ho_to_utran_cmd", proto_a_rr);
    rrlp_dissector = find_dissector("rrlp");
}


/*
 * Editor modelines  -  https://www.wireshark.org/tools/modelines.html
 *
 * Local variables:
 * c-basic-offset: 4
 * tab-width: 8
 * indent-tabs-mode: nil
 * End:
 *
 * vi: set shiftwidth=4 tabstop=8 expandtab:
 * :indentSize=4:tabSize=8:noTabs=true:
 */

Coverage Report

Created: 2026-07-12 07:10