/* GPRS RLC/MAC Control Messages as per 3GPP TS 44.060 manually transcribed from the CSN.1 syntax, as no CSN.1 * tool for Eclipse TITAN could be found. Implements only the minimum necessary messages for Osmocom teseting * purposes. */ /* (C) 2017-2018 Harald Welte * contributions by sysmocom - s.f.m.c. GmbH * All rights reserved. * * Released under the terms of GNU General Public License, Version 2 or * (at your option) any later version. * * SPDX-License-Identifier: GPL-2.0-or-later */ module RLCMAC_CSN1_Types { import from General_Types all; import from Osmocom_Types all; import from GSM_Types all; import from MobileL3_GMM_SM_Types all; /* TS 44.060 11.2.0.1 */ type enumerated RlcmacDlCtrlMsgType { PACKET_ACCESS_REJECT ('100001'B), PACKET_CELL_CHANGE_ORDER ('000001'B), PACKET_DL_ASSIGNMENT ('000010'B), PACKET_MEASUREMENT_ORDER ('000011'B), PACKET_PAGING_REQUEST ('100010'B), PACKET_PDCH_RELEASE ('100011'B), PACKET_POLLING_REQUEST ('000100'B), PACKET_PWR_CONTROL_TA ('000101'B), /* TODO */ PACKET_TBF_RELEASE ('001000'B), PACKET_UL_ACK_NACK ('001001'B), PACKET_UL_ASSIGNMENT ('001010'B), PACKET_CELL_CHANGE_CONTINUE ('001011'B), PACKET_NEIGHBOUR_CELL_DATA ('001100'B), PACKET_DL_DUMMY_CTRL ('100101'B) } with { variant "FIELDLENGTH(6)" }; /* TS 44.060 11.2.0.2 */ type enumerated RlcmacUlCtrlMsgType { PACKET_CELL_CHANGE_FEATURE ('000000'B), PACKET_CONTROL_ACK ('000001'B), PACKET_DL_ACK_NACK ('000010'B), PACKET_UL_DUMMY_CTRL ('000011'B), PACKET_MEASUREMENT_REPORT ('000100'B), PACKET_ENH_MEASUREMENT_REPORT ('001010'B), PACKET_RESOURCE_REQUEST ('000101'B), PACKET_MOBILE_TBF_STATUS ('000110'B), PACKET_PSI_STATUS ('000111'B), PACKET_EGPRS_DL_ACK_NACK ('001000'B), PACKET_PAUSE ('001001'B), ADDITIONAL_MS_RA_CAPABILITIES ('001011'B), PACKET_CELL_CHANGE_NOTIFICATION ('001100'B), PACKET_SI_STATUS ('001101'B), PACKET_CS_REQUEST ('001110'B), MBMS_SERVICE_REQUEST ('001111'B), MBMS_DL_ACK_NACK ('010000'B) } with { variant "FIELDLENGTH(6)" }; type enumerated EgprsChCodingCommand { CH_CODING_MCS1 ('0000'B), CH_CODING_MCS2 ('0001'B), CH_CODING_MCS3 ('0010'B), CH_CODING_MCS4 ('0011'B), CH_CODING_MCS5 ('0100'B), CH_CODING_MCS6 ('0101'B), CH_CODING_MCS7 ('0110'B), CH_CODING_MCS8 ('0111'B), CH_CODING_MCS9 ('1000'B), CH_CODING_MCS5_7 ('1001'B), CH_CODING_MCS6_9 ('1010'B) } with { variant "FIELDLENGTH(4)" }; /* TS 44.060 Table 12.5.2.1 */ type enumerated EgprsWindowSize { /* This probably needs to be moved to RLCMAC_CSN1_Types.ttcn */ EGPRS_WS_64 ('00000'B), EGPRS_WS_96 ('00001'B), EGPRS_WS_128 ('00010'B), EGPRS_WS_160 ('00011'B), EGPRS_WS_192 ('00100'B), EGPRS_WS_224 ('00101'B), EGPRS_WS_256 ('00110'B), EGPRS_WS_288 ('00111'B), EGPRS_WS_320 ('01000'B), EGPRS_WS_352 ('01001'B), EGPRS_WS_384 ('01010'B), EGPRS_WS_416 ('01011'B), EGPRS_WS_448 ('01100'B), EGPRS_WS_480 ('01101'B), EGPRS_WS_512 ('01110'B), EGPRS_WS_544 ('01111'B), EGPRS_WS_576 ('10000'B), EGPRS_WS_608 ('10001'B), EGPRS_WS_640 ('10010'B), EGPRS_WS_672 ('10011'B), EGPRS_WS_704 ('10100'B), EGPRS_WS_736 ('10101'B), EGPRS_WS_768 ('10110'B), EGPRS_WS_800 ('10111'B), EGPRS_WS_832 ('11000'B), EGPRS_WS_864 ('11001'B), EGPRS_WS_896 ('11010'B), EGPRS_WS_928 ('11011'B), EGPRS_WS_960 ('11100'B), EGPRS_WS_992 ('11101'B), EGPRS_WS_1024 ('11110'B) } with { variant "FIELDLENGTH(5)" }; type record NullGlobalTfi { BIT1 presence ('0'B), GlobalTfi global_tfi } with { variant "" }; type record TenTlli { BIT2 presence ('10'B), GprsTlli tlli } with { variant "" variant (tlli) "BYTEORDER(first)" }; type union GlobalTfiOrTlli { NullGlobalTfi global_tfi, TenTlli tlli }; /* 11.2.7 Packet Downlink Assignment */ type record PacketDlAssignment { PageMode page_mode, BIT1 pres1, PersistenceLevels persistence_levels optional, GlobalTfiOrTlli tfi_or_tlli, BIT1 egprs2('0'B), /* TODO: implement union with egprs2 */ BIT2 mac_mode, BIT1 rlc_mode, BIT1 control_ack, BIT8 timeslot_alloc, PacketTimingAdvance pkt_ta, BIT1 p0_present, uint4_t p0 optional, BIT1 reserved('0'B) optional, BIT1 pr_mode optional, BIT1 freq_par_present, FrequencyParameters freq_par optional, BIT1 dl_tfi_ass_present, uint5_t dl_tfi_assignment optional, BIT1 pwr_ctrl_present, PowerControlParameters pwr_ctrl optional, BIT1 tbf_starting_time_present, StartingFnDesc tbf_starting_time optional, /* The value '1' was allocated in an earlier version of the protocol */ BIT1 spare ('0'B), /* Rel-{99,5,6,7,9,10,12,14} Additions (Matrioshka) */ PktDlAssRelAdditions rel_additions optional } with { variant (persistence_levels) "PRESENCE(pres1 = '1'B)" variant (p0) "PRESENCE(p0_present = '1'B)" variant (reserved) "PRESENCE(p0_present = '1'B)" variant (pr_mode) "PRESENCE(p0_present = '1'B)" variant (freq_par) "PRESENCE(freq_par_present = '1'B)" variant (dl_tfi_assignment) "PRESENCE(dl_tfi_ass_present = '1'B)" variant (pwr_ctrl) "PRESENCE(pwr_ctrl_present = '1'B)" variant (tbf_starting_time) "PRESENCE(tbf_starting_time_present = '1'B)" }; /* 11.2.9b Packet Measurement Order */ type enumerated NetworkControlOrder { NC_0 ('00'B), NC_1 ('01'B), NC_2 ('10'B), NC_RESET ('11'B) } with { variant "FIELDLENGTH(2)" }; type record CellSelection { BIT1 cell_barr_access_2, BIT1 exc_acc, BIT1 same_ra_as_serving_cell, BIT1 gprs_rxlev_access_min_present ('0'B), BIT1 gprs_temporary_offset_present ('0'B), BIT1 gprs_reselct_offset_present ('0'B), BIT1 hcs_params_present ('0'B), BIT1 si13_pbcch_location_present ('0'B) /* TODO: add optional parameters above^ */ }; type record AddFrequency { uint10_t start_frequency, uint6_t bsic, BIT1 cell_sel_par_present, CellSelection cell_sel_par optional, uint5_t nr_of_frequencies, uint3_t freq_diff_length /* TODO: support Frequency diff list */ } with { variant (cell_sel_par) "PRESENCE(cell_sel_par_present = '1'B)" }; type record RepeatedAddFrequencyItem { BIT1 presence, AddFrequency item } with { variant "PRESENCE(presence = '1'B)" }; type record of uint6_t FreqIndexList; type record of RepeatedAddFrequencyItem RepeatedAddFrequencyItemList; type record NCFrequencyList { BIT1 removed_freq_present, uint5_t nr_of_removed_freq optional, FreqIndexList removed_freq_index optional, RepeatedAddFrequencyItemList repeated_add_frequency optional, BIT1 repeated_add_frequency_term ('0'B) } with { variant (nr_of_removed_freq) "PRESENCE(removed_freq_present = '1'B)" variant (removed_freq_index) "PRESENCE(removed_freq_present = '1'B)" variant (nr_of_removed_freq) "LENGTHTO(removed_freq_index)-1" variant (nr_of_removed_freq) "UNIT(elements)" }; type record NCMeasurementParameters { NetworkControlOrder nco, BIT1 nc_period_present, uint3_t nc_non_drx_period optional, uint3_t nc_reporting_period_i optional, uint3_t nc_reporting_period_t optional, BIT1 nc_freq_list_present, NCFrequencyList nc_freq_list optional } with { variant (nc_non_drx_period) "PRESENCE(nc_period_present = '1'B)" variant (nc_reporting_period_i) "PRESENCE(nc_period_present = '1'B)" variant (nc_reporting_period_t) "PRESENCE(nc_period_present = '1'B)" variant (nc_freq_list) "PRESENCE(nc_freq_list_present = '1'B)" }; type record PacketMeasOrder { PageMode page_mode, GlobalTfiOrTlli tfi_or_tlli, uint3_t pmo_index, uint3_t pmo_count, BIT1 nc_meas_param_present, NCMeasurementParameters nc_meas_param optional, BIT1 zero('0'B) /* The value '1' was allocated in an earlier version of the protocol and shall not be used. */ /* TODO: support Additions 98 onwards */ } with { variant (nc_meas_param) "PRESENCE(nc_meas_param_present = '1'B)" }; private type record PktDlAssRelAdditions { BIT1 rel99_presence, // 0/1 PktDlAssR99Additions rel99 optional } with { variant (rel99) "PRESENCE(rel99_presence = '1'B)" }; private type record PktDlAssR99Additions { BIT1 egprs_present, PktDlAssR99EGPRS egprs optional, BIT1 pkt_ext_ta_present, BIT2 pkt_ext_ta optional, BIT1 compact_reduced_ma_present, COMPACTreducedMA compact_reduced_ma optional /* TODO: Additions for REL-5 */ } with { variant (egprs) "PRESENCE(egprs_present = '1'B)" variant (pkt_ext_ta) "PRESENCE(pkt_ext_ta_present = '1'B)" variant (compact_reduced_ma) "PRESENCE(compact_reduced_ma_present = '1'B)" }; private type record PktDlAssR99EGPRS { EgprsWindowSize window_size, BIT2 link_quality_meas_mode, BIT1 bep_period2_present, BIT4 bep_period2 optional } with { variant (bep_period2) "PRESENCE(bep_period2_present = '1'B)" }; /* 11.2.29 Packet Uplink Assignment */ type record O_Gtfi { BIT1 presence ('0'B), GlobalTfi global_tfi } with { variant "" }; type record IO_Tlli { BIT2 presence ('10'B), GprsTlli tlli } with { variant "" variant (tlli) "BYTEORDER(first)" }; type record IIO_Tqi { BIT3 presence ('110'B), PacketRequestReference pkt_req_ref } with { variant "" }; type union PktUlAssUnion { O_Gtfi global_tfi, IO_Tlli tlli, IIO_Tqi tqi } with { variant "TAG(global_tfi, presence = '0'B; tlli, presence = '10'B; tqi, presence = '110'B)" }; type record DynamicAllocation { BIT1 extd_dyn_alloc, BIT1 p0_present, uint4_t p0 optional, BIT1 pr_mode optional, BIT1 usf_granularity, BIT1 ul_tfi_ass_present, uint5_t ul_tfi_assignment optional, BIT1 reserved ('0'B), BIT1 tbf_starting_time_present, StartingFnDesc tbf_starting_time optional, TsAllocationUnion ts_allocation } with { variant (p0) "PRESENCE(p0_present = '1'B)" variant (pr_mode) "PRESENCE(p0_present = '1'B)" variant (ul_tfi_assignment) "PRESENCE(ul_tfi_ass_present = '1'B)" variant (tbf_starting_time) "PRESENCE(tbf_starting_time_present = '1'B)" }; type record TsAllocationTs { BIT1 presence, uint3_t usf_tn optional } with { variant (usf_tn) "PRESENCE(presence = '1'B)" }; type record length(8) of TsAllocationTs TsAllocationTsArr; type record TnGamma { BIT1 presence, uint3_t usf_tn optional, uint5_t gamma_tn optional } with { variant (usf_tn) "PRESENCE(presence = '1'B)" variant (gamma_tn) "PRESENCE(presence = '1'B)" }; type record length(8) of TnGamma TnGamma8; type record TsAllocationPwr { uint4_t alpha, TnGamma tn_gamma } with { variant "" }; type record TsAllocationUnion { BIT1 presence, TsAllocationTsArr ts optional, TsAllocationPwr ts_with_pwr optional } with { variant (ts) "PRESENCE(presence = '0'B)" variant (ts_with_pwr) "PRESENCE(presence = '1'B)" }; type record SingleBlockAllocation { uint3_t timeslot_nr, BIT1 alpha_present, uint4_t alpha optional, uint5_t gamma_tn, BIT1 p0_present, uint4_t p0 optional, BIT1 reserved ('0'B) optional, BIT1 pr_mode optional, StartingFnDesc tbf_starting_time } with { variant (alpha) "PRESENCE(alpha_present = '1'B)" variant (p0) "PRESENCE(p0_present = '1'B)" variant (reserved) "PRESENCE(p0_present = '1'B)" variant (pr_mode) "PRESENCE(p0_present = '1'B)" }; type record PktUlAssGprs { ChCodingCommand ch_coding_cmd, BIT1 tlli_block_chan_coding, PacketTimingAdvance pkt_ta, BIT1 freq_par_present, FrequencyParameters freq_par optional, BIT2 alloc_present, DynamicAllocation dyn_block_alloc optional, SingleBlockAllocation sgl_block_alloc optional } with { variant (freq_par) "PRESENCE(freq_par_present = '1'B)" variant (dyn_block_alloc) "PRESENCE(alloc_present = '01'B)" variant (sgl_block_alloc) "PRESENCE(alloc_present = '10'B)" }; type record COMPACTreducedMA { uint7_t ma_bitmap_length, bitstring ma_bitmap, BIT1 maio_2_present, BIT6 maio_2 optional } with { variant (ma_bitmap_length) "LENGTHTO (ma_bitmap)" variant (ma_bitmap_length) "UNIT(bits)" variant (maio_2) "PRESENCE(maio_2_present = '1'B)" }; type record of AccessTechnologiesRequest AccessTechnologiesRequestRepetition with { variant "EXTENSION_BIT(reverse)" }; type record AccessTechnologiesRequest { BIT4 accessTechnType, BIT1 extensionBit } with { variant "FIELDORDER(msb)" }; type record MultiBlockAllocation { uint3_t timeslot_nr, BIT1 alpha_gamma_present, uint4_t alpha optional, uint5_t gamma_tn optional, BIT1 p0_present, uint4_t p0 optional, BIT1 reserved ('0'B) optional, BIT1 pr_mode optional, StartingFnDesc tbf_starting_time, uint2_t num_radio_blocks_alloc } with { variant (alpha) "PRESENCE(alpha_gamma_present = '1'B)" variant (gamma_tn) "PRESENCE(alpha_gamma_present = '1'B)" variant (p0) "PRESENCE(p0_present = '1'B)" variant (reserved) "PRESENCE(p0_present = '1'B)" variant (pr_mode) "PRESENCE(p0_present = '1'B)" }; type record PktUlAssEgprs { BIT2 dual_carrier('00'B), /*TODO 01 -- Message escape for dual carrier, RTTI, BTTI with FANR activated, EGPRS2 */ BIT1 tlli_present, GprsTlli tlli optional, BIT1 compact_reduced_ma_present, COMPACTreducedMA compact_reduced_ma optional, EgprsChCodingCommand chan_coding_cmd, BIT1 resegment, EgprsWindowSize window_size, BIT1 ats_present, AccessTechnologiesRequestRepetition ats optional, /* ? */ BIT1 arac_retrans_req, BIT1 tlli_block_chan_coding, BIT1 bep_period2_present, BIT4 bep_period2 optional, PacketTimingAdvance pkt_ta, BIT1 pkt_ext_ta_present, BIT2 pkt_ext_ta optional, BIT1 freq_par_present, FrequencyParameters freq_par optional, BIT2 alloc_present, DynamicAllocation dyn_block_alloc optional, MultiBlockAllocation multi_block_alloc optional /* TODO: Additions for Rel-5 and more */ } with { variant (tlli) "PRESENCE(tlli_present = '1'B)" variant (compact_reduced_ma) "PRESENCE(compact_reduced_ma_present = '1'B)" variant (ats) "PRESENCE(ats_present = '1'B)" variant (bep_period2) "PRESENCE(bep_period2_present = '1'B)" variant (pkt_ext_ta) "PRESENCE(pkt_ext_ta_present = '1'B)" variant (freq_par) "PRESENCE(freq_par_present = '1'B)" variant (dyn_block_alloc) "PRESENCE(alloc_present = '01'B)" variant (multi_block_alloc) "PRESENCE(alloc_present = '10'B)" }; type record PacketUlAssignment { PageMode page_mode, BIT1 persistence_levels_present, PersistenceLevels persistence_levels optional, PktUlAssUnion identity, BIT1 is_egprs, /* msg escape */ PktUlAssGprs gprs optional, PktUlAssEgprs egprs optional /* TODO: Table 11.2.29.1: PACKET UPLINK ASSIGNMENT information elements https://www.etsi.org/deliver/etsi_ts/144000_144099/144060/09.03.00_60/ts_144060v090300p.pdf */ } with { variant (persistence_levels) "PRESENCE(persistence_levels_present = '1'B)" variant (gprs) "PRESENCE(is_egprs = '0'B)" variant (egprs) "PRESENCE(is_egprs = '1'B)" }; /* 11.2.10 Packet Paging Request */ type record MobileIdentityLV_Paging { /* Note that the size of 'len' differs from that of the Mobile Identify IE * as defined in 3GPP TS 24.008 10.5.1.4 "Mobile Identity"; Paging Requests * use only 4 bit to encode the length of a mobile identity, whereas the IE * uses a byte. */ uint4_t len, octetstring mobile_id } with { variant (len) "LENGTHTO(mobile_id)" variant (mobile_id) "BYTEORDER(first)" }; type record PageInfoPs { BIT1 presence ('0'B), BIT1 ptmsi_or_mobile_id, GsmTmsi ptmsi optional, MobileIdentityLV_Paging mobile_identity optional } with { variant (ptmsi) "PRESENCE(ptmsi_or_mobile_id = '0'B)" variant (mobile_identity) "PRESENCE(ptmsi_or_mobile_id = '1'B)" }; type record PageInfoCs { BIT1 presence ('1'B), BIT1 tmsi_or_mobile_id, GsmTmsi tmsi optional, MobileIdentityLV_Paging mobile_identity optional, ChannelNeeded chan_needed, BIT1 emlpp_prio_present, uint3_t emlpp_prio optional } with { variant (tmsi) "PRESENCE(tmsi_or_mobile_id = '0'B)" variant (mobile_identity) "PRESENCE(tmsi_or_mobile_id = '1'B)" variant (emlpp_prio) "PRESENCE(emlpp_prio_present = '1'B)" }; type union PageInfo { PageInfoPs ps, PageInfoCs cs } with { variant "TAG(ps, presence = '0'B; cs, presence = '1'B)" }; type record RepeatedPageInfoItem { BIT1 presence, PageInfo item } with { variant "PRESENCE(presence = '1'B)" }; type record of RepeatedPageInfoItem RepeatedPageInfo; type record PacketPagingReq { PageMode page_mode, BIT1 persistence_levels_present, PersistenceLevels persistence_levels optional, BIT1 nln_present, uint2_t nln optional, RepeatedPageInfo repeated_pageinfo optional, BIT1 repeated_pageinfo_term ('0'B) } with { variant (persistence_levels) "PRESENCE(persistence_levels_present = '1'B)" variant (nln) "PRESENCE(nln_present = '1'B)" }; /* 12.26 Extension Bits IE */ type record ExtensionBits { uint6_t extension_length, bitstring spare_bits } with { variant (extension_length) "LENGTHTO(spare_bits) - 1" variant (extension_length) "UNIT(bits)" }; /* 11.2.28 Uplink Ack/Nack */ type enumerated ChCodingCommand { CH_CODING_CS1 ('00'B), CH_CODING_CS2 ('01'B), CH_CODING_CS3 ('10'B), CH_CODING_CS4 ('11'B) } with { variant "FIELDLENGTH(2)" }; type record UlAckNackGprsAdditionsRel99 { BIT1 ext_pkt_ta_present, BIT2 ext_pkt_ta optional, boolean tbf_est /* TODO: Rel5 ,... */ } with { variant (ext_pkt_ta) "PRESENCE(ext_pkt_ta_present = '1'B)" variant (tbf_est) "FIELDLENGTH(1)" }; type record UlAckNackGprs { ChCodingCommand ch_coding_cmd, AckNackDescription ack_nack_desc, BIT1 cont_res_tlli_present, GprsTlli cont_res_tlli optional, BIT1 pkt_ta_present, PacketTimingAdvance pkt_ta optional, BIT1 pwr_ctrl_present, PowerControlParameters pwr_ctrl optional, BIT1 extension_bits_present, ExtensionBits extension_bits optional, BIT1 not_used ('0'B), BIT1 rel99_present, UlAckNackGprsAdditionsRel99 rel99 optional } with { variant (cont_res_tlli) "PRESENCE(cont_res_tlli_present = '1'B)" variant (pkt_ta) "PRESENCE(pkt_ta_present = '1'B)" variant (pwr_ctrl) "PRESENCE(pwr_ctrl_present = '1'B)" variant (extension_bits) "PRESENCE(extension_bits_present = '1'B)" variant (rel99) "PRESENCE(rel99_present = '1'B)" variant (cont_res_tlli) "BYTEORDER(first)" }; type record UlAckNackEgprs { BIT2 msg_excape ('00'B), EgprsChCodingCommand ch_coding_cmd, BIT1 resegment, BIT1 preemptive_tx, BIT1 prr_retrans_req, BIT1 arac_retrans_req, BIT1 cont_res_tlli_present, GprsTlli cont_res_tlli optional, BIT1 tbf_est, BIT1 pkt_ta_present, PacketTimingAdvance pkt_ta optional, BIT1 pkt_ext_ta_present, BIT2 pkt_ext_ta optional, BIT1 pwr_ctrl_present, PowerControlParameters pwr_ctrl optional /* TODO: TS 44.060 12.3.1 EGPRS Ack/Nack Description */ /* EgprsAckNackDescription ack_nack_desc, */ /* BIT1 not_used('0'B) */ /* TODO: Extension Bits, Rel5 ,... */ } with { variant (cont_res_tlli) "PRESENCE(cont_res_tlli_present = '1'B)" variant (pkt_ta) "PRESENCE(pkt_ta_present = '1'B)" variant (pkt_ext_ta) "PRESENCE(pkt_ext_ta_present = '1'B)" variant (pwr_ctrl) "PRESENCE(pwr_ctrl_present = '1'B)" variant (cont_res_tlli) "BYTEORDER(first)" }; type record PacketUlAckNack { PageMode page_mode, BIT2 msg_excape ('00'B), uint5_t uplink_tfi, BIT1 is_egprs, UlAckNackGprs gprs optional, UlAckNackEgprs egprs optional /* TODO: EGPRS */ } with { variant (gprs) "PRESENCE(is_egprs = '0'B)" variant (egprs) "PRESENCE(is_egprs = '1'B)" }; /* 11.2.8 Packet Downlink Dummy Control Block */ type record PacketDlDummy { PageMode page_mode, BIT1 persistence_levels_present, PersistenceLevels persistence_levels optional } with { variant (persistence_levels) "PRESENCE(persistence_levels_present = '1'B)" }; /* 11.9 Global Power Control Parameters */ type record GlobalPwrCtrlParams { uint4_t alpha, uint5_t t_avg_v, uint5_t t_avg_t, uint4_t pb, BIT1 pc_meas_chan, BIT1 spare ('0'B), uint4_t n_avg_i }; /* 12.12a Global Packet Timing Advance */ type record TimingAdvanceIdxTN { uint4_t ta_idx, uint3_t ts_num }; type record GlobalPacketTA { BIT1 ta_val_presence, uint4_t ta_val optional, BIT1 ul_presence, TimingAdvanceIdxTN ul optional, BIT1 dl_presence, TimingAdvanceIdxTN dl optional } with { variant (ta_val) "PRESENCE(ta_val_presence = '1'B)" variant (ul) "PRESENCE(ul_presence = '1'B)" variant (dl) "PRESENCE(dl_presence = '1'B)" }; /* 11.2.13 Packet Power Control/Timing Advance */ type record PacketPwrControlTAMsg { BIT1 g_pwr_ctrl_presence, GlobalPwrCtrlParams g_pwr_ctrl optional, BIT1 split, BIT1 split_desc optional, GlobalPacketTA g_pkt_ta optional, PowerControlParameters pwr_ctrl optional /* TODO: additions for R99, REL-7, REL-12 */ } with { variant (g_pwr_ctrl) "PRESENCE(g_pwr_ctrl_presence = '1'B)" variant (split_desc) "PRESENCE(split = '1'B)" /* FIXME: Fancy coding: either both IEs together, or one of them */ variant (g_pkt_ta) "PRESENCE(split = '0'B, split_desc = '0'B)" variant (pwr_ctrl) "PRESENCE(split = '0'B, split_desc = '1'B)" }; type record PacketPwrControlTA { PageMode page_mode, NullGlobalTfi global_tfi, /* See 11.1.3.3 'Message escape' error label * 0 < Message body > ! < Message escape : 1 bit (*) = > */ BIT1 msg_escape, PacketPwrControlTAMsg msg optional } with { variant (msg) "PRESENCE(msg_escape = '0'B)" }; /* 11.2.2a Packet Cell Change Continue */ type record PacketCellChangeContinue { PageMode page_mode, BIT1 zero ('0'B), GlobalTfi gtfi, BIT1 arfcn_bsic_presence, uint10_t arfcn optional, uint6_t bsic optional, uint2_t container_id optional } with { variant (arfcn) "PRESENCE(arfcn_bsic_presence = '1'B)" variant (bsic) "PRESENCE(arfcn_bsic_presence = '1'B)" variant (container_id) "PRESENCE(arfcn_bsic_presence = '1'B)" }; /* 11.2.9e Packet Neighbour Cell Data */ type record PacketNeighbourCellDataContainer { BIT3 pd, uint5_t cd_length, octetstring container_data } with { variant (cd_length) "LENGTHTO (container_data)" variant (container_data) "BYTEORDER(first)" }; type record of PacketNeighbourCellDataContainer PacketNeighbourCellDataContainerList type record PacketNeighbourCellData { PageMode page_mode, BIT1 zero ('0'B), GlobalTfi gtfi, uint2_t container_id, BIT1 spare ('0'B), uint5_t container_index, BIT1 arfcn_bsic_presence, uint10_t arfcn optional, uint6_t bsic optional, PacketNeighbourCellDataContainerList container_list } with { variant (arfcn) "PRESENCE(arfcn_bsic_presence = '1'B)" variant (bsic) "PRESENCE(arfcn_bsic_presence = '1'B)" }; /* 11.2.0.1 */ type union RlcmacDlCtrlUnion { PacketAccessReject access_reject, PacketDlAssignment dl_assignment, PacketMeasOrder meas_order, PacketUlAssignment ul_assignment, PacketPagingReq paging, PacketUlAckNack ul_ack_nack, PacketDlDummy dl_dummy, PacketPwrControlTA pwr_ta, PacketCellChangeContinue cell_chg_continue, PacketNeighbourCellData neighbour_cell_data, octetstring other } with { variant "" }; type record RlcmacDlCtrlMsg { RlcmacDlCtrlMsgType msg_type, RlcmacDlCtrlUnion u } with { variant (u) "CROSSTAG(access_reject, msg_type = PACKET_ACCESS_REJECT; dl_assignment, msg_type = PACKET_DL_ASSIGNMENT; meas_order, msg_type = PACKET_MEASUREMENT_ORDER; ul_assignment, msg_type = PACKET_UL_ASSIGNMENT; paging, msg_type = PACKET_PAGING_REQUEST; ul_ack_nack, msg_type = PACKET_UL_ACK_NACK; dl_dummy, msg_type = PACKET_DL_DUMMY_CTRL; pwr_ta, msg_type = PACKET_PWR_CONTROL_TA; cell_chg_continue,msg_type = PACKET_CELL_CHANGE_CONTINUE; neighbour_cell_data,msg_type = PACKET_NEIGHBOUR_CELL_DATA; other, OTHERWISE )" }; external function enc_RlcmacDlCtrlMsg(in RlcmacDlCtrlMsg si) return octetstring with { extension "prototype(convert) encode(RAW)" }; external function dec_RlcmacDlCtrlMsg(in octetstring stream) return RlcmacDlCtrlMsg with { extension "prototype(convert) decode(RAW)" }; /* 11.2.1 Packet Access Reject */ type record PacketAccessRejectIDSub { BIT1 id_type, PacketRequestReference req_ref optional, GlobalTfi gtfi optional } with { variant (req_ref) "PRESENCE(id_type = '0'B)" variant (gtfi) "PRESENCE(id_type = '1'B)" }; type union PacketAccessRejectID { GprsTlli tlli, PacketAccessRejectIDSub id_sub } with { variant (tlli) "BYTEORDER(first)" }; type record PacketAccessRejectStruct { BIT1 id_type, PacketAccessRejectID id, BIT1 wait_ind_presence, uint8_t wait_ind optional, BIT1 wait_ind_size optional } with { variant (id) "CROSSTAG(tlli, id_type = '0'B; id_sub, id_type = '1'B)" variant (wait_ind) "PRESENCE(wait_ind_presence = '1'B)" variant (wait_ind_size) "PRESENCE(wait_ind_presence = '1'B)" }; type record PacketAccessReject { PageMode page_mode, PacketAccessRejectStruct reject_struct /* TODO: Additional Reject */ /* TODO: Rel5 additions */ } with { variant "" }; /* 11.2.6 Packet Downlink Ack/Nack */ type record ILevel { BIT1 presence, uint4_t i_level optional } with { variant (i_level) "PRESENCE(presence = '1'B)" }; type record length(8) of ILevel ILevels; type record ChannelQualityReport { uint6_t c_value, uint3_t rxqual, uint6_t sign_var, ILevels i_levels } with { variant "" }; type record PacketDlAckNack { uint5_t dl_tfi, AckNackDescription ack_nack_desc, BIT1 chreq_desc_presence, ChannelReqDescription chreq_desc optional, ChannelQualityReport ch_qual_rep } with { variant (chreq_desc) "PRESENCE(chreq_desc_presence = '1'B)" }; /* 11.2.6a Egprs Packet Downlink Ack/Nack */ type record EgprsBEPLinkQualityMeasurements { BIT1 gmsk_presence, BIT5 gmsk_mean_bep optional, BIT3 gmsk_cv_bep optional, BIT1 psk8_presence, BIT5 psk8_mean_bep optional, BIT3 psk8_cv_bep optional } with { variant (gmsk_mean_bep) "PRESENCE(gmsk_presence = '1'B)" variant (gmsk_cv_bep) "PRESENCE(gmsk_presence = '1'B)" variant (psk8_mean_bep) "PRESENCE(psk8_presence = '1'B)" variant (psk8_cv_bep) "PRESENCE(psk8_presence = '1'B)" }; /* 12.5.4 EGPRS Timeslot Link Quality Measurements IE */ type record BEPMeas { BIT1 presence, BIT1 is_8psk optional, uint4_t bep_meas optional } with { variant (is_8psk) "PRESENCE(presence = '1'B)" variant (bep_meas) "PRESENCE(presence = '1'B)" }; type record length(8) of BEPMeas BEPMeasLi; type record EgprsTimeslotLinkQualityMeasurements { BIT1 bep_measurements_presence, BEPMeasLi bep_meas optional, BIT1 i_measurements_presence, ILevels i_meas optional } with { variant (bep_meas) "PRESENCE(bep_measurements_presence = '1'B)" variant (i_meas) "PRESENCE(i_measurements_presence = '1'B)" }; /* Table 12.5.1.1 : EGPRS Channel Quality Report Information elements */ type record EgprsChannelQualityReport { EgprsBEPLinkQualityMeasurements bep_link_qual_meas, uint6_t c_value, EgprsTimeslotLinkQualityMeasurements ts_link_qual_meas } with { variant "" }; type record EgprsPacketDlAckNack { uint5_t dl_tfi, BIT1 ms_oom, BIT1 egprs_ch_qual_rep_presence, EgprsChannelQualityReport egprs_ch_qual_rep optional, BIT1 chreq_desc_presence, ChannelReqDescription chreq_desc optional, BIT1 pfi_presence, BIT7 pfi optional, BIT1 epdan_presence('0'B), /* TODO: Implement EPD A/N */ EgprsAckNackDescriptionIE ack_nack_desc_ie } with { variant (chreq_desc) "PRESENCE(chreq_desc_presence = '1'B)" variant (egprs_ch_qual_rep) "PRESENCE(egprs_ch_qual_rep_presence = '1'B)" variant (pfi) "PRESENCE(pfi_presence = '1'B)" }; /* 11.2.2 Packet Control Acknowledgement */ type enumerated CtrlAck { MS_RCVD_TWO_RLC_SAME_RTI_DIFF_RBSN_NEW_TFI ('00'B), MS_RCVD_RBSN1_NO_RBSN0 ('01'B), MS_RCVD_RBSN0_NO_RBSN1 ('10'B), MS_RCVD_TWO_RLC_SAME_RTI_DIFF_RBSN ('11'B) } with { variant "FIELDLENGTH(2)" }; type record PacketCtrlAck { GprsTlli tlli, CtrlAck ctrl_ack /* TODO: Rel5 additions */ } with { variant "" variant (tlli) "BYTEORDER(first)" }; /* 1.2.8b Packet Uplink Dummy Control Block */ type record PacketUlDummy { GprsTlli tlli } with { variant "" variant (tlli) "BYTEORDER(first)" }; /* 11.2.9 Packet Measurement Report */ type record NCMeasurement { uint6_t frequency_n, BIT1 bsic_n_presence, BIT6 bsic_n optional, uint6_t rxlev_n } with { variant (bsic_n) "PRESENCE(bsic_n_presence = '1'B)" }; type record of NCMeasurement NCMeasurementList; type record NCMeasurementReport { BIT1 nc_mode, uint6_t rxlev_serving_cell, BIT1 zero ('0'B), /*The value '1' was allocated in an earlier version of the protocol and shall not be used.*/ uint3_t num_nc_measurements, NCMeasurementList nm_measurements } with { variant (num_nc_measurements) "LENGTHTO(nm_measurements)" variant (num_nc_measurements) "UNIT(elements)" }; type record PacketMeasReport { GprsTlli tlli, BIT1 psi5_change_mark_presence, BIT2 psi5_change_mark optional, BIT1 additions_99 ('0'B), /* TODO: 1 -> support Additions 99 onwards */ NCMeasurementReport nc_meas_report optional } with { variant (tlli) "BYTEORDER(first)" variant (psi5_change_mark) "PRESENCE(psi5_change_mark_presence = '1'B)" variant (nc_meas_report) "PRESENCE(additions_99 = '0'B)" }; /* TS 44.060 sec 12.30 MS Radio Access Capability 2 * (for value part, see 3GPP TS 24.008 sec 10.5.5.12a and table 10.5.146) */ type union MSRadioAccCap2 { MSRadioAccessCapabilityV msRadioAccessCapabilityV }; /* Table 11.2.16.2 Access Type */ type enumerated RlcAccessType { RLC_ACC_TYPE_TWO_PHASE ('00'B), RLC_ACC_TYPE_PAG_RESPONSE ('01'B), RLC_ACC_TYPE_CELL_UPDATE ('10'B), RLC_ACC_TYPE_MM ('11'B) } with { variant "FIELDLENGTH(2)" }; type union PacketResourceReqID { GlobalTfi gtfi, GprsTlli tlli } with { variant (tlli) "BYTEORDER(first)" }; /* 11.2.16 Packet Resource Request */ type record PacketResourceReq { BIT1 acc_type_presence, RlcAccessType acc_type optional, BIT1 id_type, PacketResourceReqID id, BIT1 ms_rac2_presence, MSRadioAccCap2 ms_rac2 optional, ChannelReqDescription ch_req_desc, BIT1 change_mark_presence, BIT2 change_mark optional, BIT6 C_val, BIT1 sign_var_presence, BIT6 sign_var optional, ILevels I_levels /* TODO: additional contents for further Releases (starting from 1999) */ } with { variant (acc_type) "PRESENCE(acc_type_presence = '1'B)" variant (id) "CROSSTAG(gtfi, id_type = '0'B; tlli, id_type = '1'B)" variant (ms_rac2) "PRESENCE(ms_rac2_presence = '1'B)" variant (change_mark) "PRESENCE(change_mark_presence = '1'B)" variant (sign_var) "PRESENCE(sign_var_presence = '1'B)" }; /* 11.2.3a Packet Cell Change Notification */ type record NCMeasurementItem { uint6_t freq, BIT1 bsic_presence, uint6_t bsic optional, uint6_t rxlev } with { variant (bsic) "PRESENCE(bsic_presence = '1'B)" }; type record of NCMeasurementItem NCMeasurements; type record CCNMesurementReport { uint6_t rxlev_servig_cell, BIT1 zero ('0'B), uint3_t num_meas, NCMeasurements meas } with { variant "" }; type record PacketCellChangeNotification { GlobalTfi gtfi, /* TODO: support 3g/4g in these bits */ BIT1 arfcn_bsic_presence, uint10_t arfcn optional, uint6_t bsic optional, BIT1 ba_psi3_presence, BIT1 ba_used optional, BIT2 psi3_change_mark optional, BIT1 pmo_used, BIT1 pccn_sending, CCNMesurementReport ccn_meas_rep /* TODO: Rel6 additions for 3G support */ } with { variant (arfcn) "PRESENCE(arfcn_bsic_presence = '0'B)" variant (bsic) "PRESENCE(arfcn_bsic_presence = '0'B)" variant (ba_used) "PRESENCE(ba_psi3_presence = '0'B)" variant (psi3_change_mark) "PRESENCE(ba_psi3_presence = '1'B)" }; /* 11.2.0.2 */ type union RlcmacUlCtrlUnion { PacketCtrlAck ctrl_ack, PacketDlAckNack dl_ack_nack, EgprsPacketDlAckNack dl_ack_nack_egprs, PacketUlDummy ul_dummy, PacketMeasReport meas_report, PacketResourceReq resource_req, PacketCellChangeNotification cell_chg_notif, octetstring other } with { variant "" }; type record RlcmacUlCtrlMsg { RlcmacUlCtrlMsgType msg_type, RlcmacUlCtrlUnion u } with { variant (u) "CROSSTAG(ctrl_ack, msg_type = PACKET_CONTROL_ACK; dl_ack_nack, msg_type = PACKET_DL_ACK_NACK; dl_ack_nack_egprs, msg_type = PACKET_EGPRS_DL_ACK_NACK; ul_dummy, msg_type = PACKET_UL_DUMMY_CTRL; meas_report, msg_type = PACKET_MEASUREMENT_REPORT; resource_req, msg_type = PACKET_RESOURCE_REQUEST; cell_chg_notif, msg_type = PACKET_CELL_CHANGE_NOTIFICATION; other, OTHERWISE )" }; external function enc_RlcmacUlCtrlMsg(in RlcmacUlCtrlMsg si) return octetstring with { extension "prototype(convert) encode(RAW)" }; external function dec_RlcmacUlCtrlMsg(in octetstring stream) return RlcmacUlCtrlMsg with { extension "prototype(convert) decode(RAW)" }; type bitstring ReceivedBlockBitmap length(64) with { variant "BYTEORDER(last)" }; /* 12.3 Ack/Nack Description */ type record AckNackDescription { BIT1 final_ack, uint7_t starting_seq_nr, ReceivedBlockBitmap receive_block_bitmap } with { variant "" }; /* 12.3.1 Egprs Ack/Nack Description */ type bitstring UncompressedReceivedBlockBitmap length(64) with { variant "BYTEORDER(last)" }; type record EgprsAckNackDescription { BIT1 final_ack, BIT1 begin_window, BIT1 end_window, uint11_t starting_seq_nr, BIT1 compressed, /* TODO: CompressedReceivedBlockBitmap urbb optional, */ UncompressedReceivedBlockBitmap urbb optional } with { variant (urbb) "PRESENCE(compressed = '0'B)" }; type record EgprsAckNackDescriptionIE { BIT1 len_present, uint8_t len optional, EgprsAckNackDescription acknack_desc } with { variant (len) "PRESENCE(len_present = '1'B)" variant (len) "LENGTHTO(acknack_desc)" variant (len) "UNIT(bits)" }; /* 12.7 Channel Request Description */ type enumerated RlcMode { RLC_MODE_ACKNOWLEDGED (0), RLC_MODE_UNACKNOWLEDGED (1) } with { variant "FIELDLENGTH(1)" }; type enumerated LlcPduType { LLC_PDU_IS_SACK_OR_ACK (0), LLC_PDU_IS_NOT_SACK_OR_ACK (1) } with { variant "FIELDLENGTH(1)" }; type record ChannelReqDescription { uint4_t peak_tput_class, uint2_t priority, RlcMode rlc_mode, LlcPduType llc_pdu_type, uint16_t RlcOctetCount } with { variant "" }; /* 12.8 Frequency Parameters */ type record FreqIndirect { uint6_t maio, uint4_t ma_number, BIT1 change_mark1_present, uint2_t change_mark1 optional, BIT1 change_mark2_present, uint2_t change_mark2 optional } with { variant (change_mark1) "PRESENCE(change_mark1_present = '1'B)" variant (change_mark2) "PRESENCE(change_mark2_present = '1'B)" }; type record FreqDirect1 { uint6_t maio, GprsMobileAllocation mobile_allocation } type record FreqDirect2 { uint6_t maio, uint6_t hsn, uint4_t ma_freq_len, octetstring m1_freq_list } with { variant (ma_freq_len) "LENGTHTO(m1_freq_list)+3" }; type record FrequencyParameters { uint3_t tsc, BIT2 presence, uint10_t arfcn optional, FreqIndirect indirect optional, FreqDirect1 direct1 optional, FreqDirect2 direct2 optional } with { variant (arfcn) "PRESENCE(presence = '00'B)" variant (indirect) "PRESENCE(presence = '01'B)" variant (direct1) "PRESENCE(presence = '10'B)" variant (direct2) "PRESENCE(presence = '11'B)" }; /* 12.9a GPRS Power Control Parameters */ type record GprsPowerControlParameters { uint4_t alpha, BIT5 t_avg_w, BIT5 t_avg_t, BIT1 pc_meas_chan, BIT4 n_avg_i }; /* 12.10 Global TFI */ type record GlobalTfi { boolean is_dl_tfi, uint5_t tfi } with { variant (is_dl_tfi) "FIELDLENGTH(1)" }; /* 12.10a GPRS Mobile Allocation */ type record RflNumberList { uint4_t rfl_number, BIT1 presence, RflNumberList rfl_number_list optional } with { variant (rfl_number_list) "PRESENCE(presence = '1'B)" }; type record GprsMobileAllocation { uint6_t hsn, BIT1 rfl_number_list_present, RflNumberList rfl_number_list optional, BIT1 ma_present, uint6_t ma_length optional, bitstring ma_bitmap length(1..64) optional /* TODO: ARFCN index list */ } with { variant (rfl_number_list) "PRESENCE(rfl_number_list_present = '1'B)" variant (ma_length) "PRESENCE(ma_present = '0'B)" variant (ma_bitmap) "PRESENCE(ma_present = '0'B)" variant (ma_length) "LENGTHTO(ma_bitmap)-1, UNIT(bits)" variant (ma_bitmap) "BYTEORDER(first), BITORDER(msb)" }; /* 12.11 Packet Request Reference */ type record PacketRequestReference { uint11_t ra_info, uint16_t frame_nr } with { variant "" }; /* 12.12 Packet Timing Advance */ type record PacketTimingAdvance { BIT1 val_present, uint6_t val optional, BIT1 idx_present, uint4_t idx optional, uint3_t timeslot_nr optional } with { variant (val) "PRESENCE(val_present = '1'B)" variant (idx) "PRESENCE(idx_present = '1'B)" variant (timeslot_nr) "PRESENCE(idx_present = '1'B)" }; /* 12.13 Power Control Parameters */ type record ZeroOneGamma { BIT1 gamma_present, uint5_t gamma optional } with { variant (gamma) "PRESENCE (gamma_present = '1'B)" }; type record length(8) of ZeroOneGamma ZeroOneGammas; type record PowerControlParameters { uint4_t alpha, ZeroOneGammas gamma } with { variant "" }; /* 12.14 Persistence Level */ type record length(4) of uint4_t PersistenceLevels; /* 12.20 Page Mode */ type enumerated PageMode { PAGE_MODE_NORMAL ('00'B), PAGE_MODE_EXTENDED ('01'B), PAGE_MODE_REORG ('10'B), PAGE_MODE_SAME ('11'B) } with { variant "FIELDLENGTH(2)" }; /* 12.21 Starting Frame Number */ type record StartingFnDesc { BIT1 presence, uint16_t absolute_starting_time optional, uint13_t relative_k optional } with { variant (absolute_starting_time) "PRESENCE(presence = '0'B)" variant (relative_k) "PRESENCE(presence = '1'B)" }; /* 12.24 GPRS Cell Options */ type record ExtensionInformation { BIT1 egprs_supported, BIT1 egprs_pkt_channel_req optional, BIT4 bep_period optional, BIT1 pfc_feature_mode, BIT1 dtm_support, BIT1 bss_paging_coordination, /* REL-4 extension */ BIT1 ccn_active optional, BIT1 nw_ext_utbf optional /* TODO: REL-6 extension */ /* TODO: REL-7 extension */ /* TODO: REL-10 extension */ } with { variant (egprs_pkt_channel_req) "PRESENCE(egprs_supported = '1'B)" variant (bep_period) "PRESENCE(egprs_supported = '1'B)" }; type record GprsCellOptions { BIT2 nmo, BIT3 t3168, BIT3 t3192, BIT3 drx_timer_max, BIT1 access_burst_type, BIT1 control_ack_type, uint4_t bs_cv_max, BIT1 pan_presence, uint3_t pan_dec optional, uint3_t pan_inc optional, BIT3 pan_max optional, BIT1 ext_info_presence, BIT6 ext_info_length optional, ExtensionInformation ext_info optional } with { variant (pan_dec) "PRESENCE(pan_presence = '1'B)" variant (pan_inc) "PRESENCE(pan_presence = '1'B)" variant (pan_max) "PRESENCE(pan_presence = '1'B)" variant (ext_info_length) "PRESENCE(ext_info_presence = '1'B)" variant (ext_info) "PRESENCE(ext_info_presence = '1'B)" /* TODO: mark REL-4 and upwards in ext_info as omit based on ext_info_length ? */ }; /* 3GPP TS 44.060, table 11.2.5a.2 "EGPRS PACKET CHANNEL REQUEST" */ type union EGPRSPktChRequest { EGPRSPktChRequest_MC5P2RB3 one_phase, EGPRSPktChRequest_NOB3P2RB3 short, // deprecated EGPRSPktChRequest_MCG3P2RB3 one_phase_red, EGPRSPktChRequest_P2RB3 two_phase, EGPRSPktChRequest_RB5 signalling, EGPRSPktChRequest_RB5 one_phase_unack, EGPRSPktChRequest_RB5 dedicated, EGPRSPktChRequest_RB5 emergency, EGPRSPktChRequest_P2RB3 two_phase_ipa, EGPRSPktChRequest_RB5 signalling_ipa } with { variant "TAG ( one_phase, tag = '0'B; short, tag = '100'B; one_phase_red, tag = '101'B; two_phase, tag = '110000'B; signalling, tag = '110011'B; one_phase_unack, tag = '110101'B; dedicated, tag = '110110'B; emergency, tag = '110111'B; two_phase_ipa, tag = '111000'B; signalling_ipa, tag = '111001'B; )" }; private type record EGPRSPktChRequest_MC5P2RB3 { BIT1 tag, BIT5 multislot_class, BIT2 priority, BIT3 random_bits }; private type record EGPRSPktChRequest_NOB3P2RB3 { BIT3 tag, BIT3 nr_of_blocks, BIT2 priority, BIT3 random_bits }; private type record EGPRSPktChRequest_MCG3P2RB3 { BIT3 tag, BIT3 multislot_class_group, BIT2 priority, BIT3 random_bits }; private type record EGPRSPktChRequest_P2RB3 { BIT6 tag, BIT2 priority, BIT3 random_bits }; private type record EGPRSPktChRequest_RB5 { BIT6 tag, BIT5 random_bits }; /* TITAN violates length restrictions on returned type, so we cannot do '... return BIT11'. * Keep this function private as it returns octet-aligned bitstring (+5 padding bits). */ private external function enc_EGPRSPktChRequestInternal(in EGPRSPktChRequest req) return bitstring with { extension "prototype(convert) encode(RAW)" }; function enc_EGPRSPktChRequest2bits(in EGPRSPktChRequest req) return BIT11 { var bitstring ra11_pad := enc_EGPRSPktChRequestInternal(req); return substr(ra11_pad, 0, 11); /* TITAN adds 5 padding bits */ } function enc_EGPRSPktChRequest2uint(in EGPRSPktChRequest req) return uint16_t { var BIT11 ra11 := enc_EGPRSPktChRequest2bits(req); return bit2int(ra11); } } with { encode "RAW"; variant "FIELDORDER(msb)" variant "BYTEORDER(last)" };