/* TITAN REW encode/decode definitions for 3GPP TS 44.060 RLC/MAC Blocks */ /* (C) 2017-2018 Harald Welte * (C) 2020 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_Templates { import from General_Types all; import from Osmocom_Types all; import from GSM_Types all; import from RLCMAC_CSN1_Types all; import from RLCMAC_CSN1_Templates all; import from RLCMAC_Types all; template CodingScheme cs_gprs_any := (CS_1, CS_2, CS_3, CS_4); template CodingScheme mcs_egprs_any := (MCS_1, MCS_2, MCS_3, MCS_4, MCS_5, MCS_6, MCS_7, MCS_8, MCS_9); /* TS 44.060 10.4.5 */ function f_rrbp_fn_delay(MacRrbp rrbp) return uint32_t { select (rrbp) { case (RRBP_Nplus13_mod_2715648) { return 13; } case (RRBP_Nplus17_or_18_mod_2715648) { return 17; } case (RRBP_Nplus21_or_22_mod_2715648) { return 21; } case (RRBP_Nplus26_mod_2715648) { return 26; } } return 0; } function f_rrbp_ack_fn(uint32_t current_fn, MacRrbp rrbp) return uint32_t { return (current_fn + f_rrbp_fn_delay(rrbp)) mod 2715648; } function f_rlcmac_cs_mcs_is_mcs(CodingScheme cs_mcs) return boolean { if (cs_mcs >= MCS_0) { return true; } return false; } function f_rlcmac_mcs2headertype(CodingScheme mcs) return EgprsHeaderType { select (mcs) { case (MCS_0) { return RLCMAC_HDR_TYPE_3; } case (MCS_1) { return RLCMAC_HDR_TYPE_3; } case (MCS_2) { return RLCMAC_HDR_TYPE_3; } case (MCS_3) { return RLCMAC_HDR_TYPE_3; } case (MCS_4) { return RLCMAC_HDR_TYPE_3; } case (MCS_5) { return RLCMAC_HDR_TYPE_2; } case (MCS_6) { return RLCMAC_HDR_TYPE_2; } case (MCS_7) { return RLCMAC_HDR_TYPE_1; } case (MCS_8) { return RLCMAC_HDR_TYPE_1; } case (MCS_9) { return RLCMAC_HDR_TYPE_1; } } return RLCMAC_HDR_TYPE_3; } function f_rlcmac_cs_mcs2block_len(CodingScheme cs_mcs) return uint32_t { select (cs_mcs) { case (CS_1) { return 23; } case (CS_2) { return 34; } case (CS_3) { return 40; } case (CS_4) { return 54; } case (MCS_1) { return 27; } case (MCS_2) { return 33; } case (MCS_3) { return 42; } case (MCS_4) { return 49; } case (MCS_5) { return 61; } case (MCS_6) { return 79; } case (MCS_7) { return 119; } case (MCS_8) { return 143; } case (MCS_9) { return 155; } } return 0; } function f_rlcmac_block_len2cs_mcs(uint32_t len) return CodingScheme { select (len) { case (23) { return CS_1; } case (34) { return CS_2; } case (40) { return CS_3; } case (54) { return CS_4; } case (27) { return MCS_1; } case (33) { return MCS_2; } case (42) { return MCS_3; } case (49) { return MCS_4; } case (60) { return MCS_5; } case (61) { return MCS_5; } case (78) { return MCS_6; } case (79) { return MCS_6; } case (118) { return MCS_7; } case (119) { return MCS_7; } case (142) { return MCS_8; } case (143) { return MCS_8; } case (154) { return MCS_9; } case (155) { return MCS_9; } } return CS_1; } function f_rlcmac_cs_mcs2block_len_no_spare_bits(CodingScheme cs_mcs) return uint32_t { select (cs_mcs) { /* 3GPP TS 44.060 Table 10.2.1: RLC data block size, discounting padding in octet */ case (CS_1) { return 23; } case (CS_2) { return 33; } case (CS_3) { return 39; } case (CS_4) { return 53; } case (MCS_1) { return 27; } case (MCS_2) { return 33; } case (MCS_3) { return 42; } case (MCS_4) { return 49; } case (MCS_5) { return 61; } case (MCS_6) { return 79; } case (MCS_7) { return 119; } case (MCS_8) { return 143; } case (MCS_9) { return 155; } } return 0; } /* Minimum CodingScheme required to fit RLCMAC block. Spare bits not counted. */ function f_rlcmac_block_len_required_cs_mcs(uint32_t len, boolean is_mcs) return CodingScheme { if (is_mcs) { if (len <= 27) { return MCS_1; } if (len <= 33) { return MCS_2; } if (len <= 42) { return MCS_3; } if (len <= 49) { return MCS_4; } if (len <= 60) { return MCS_5; } if (len <= 61) { return MCS_5; } if (len <= 79) { return MCS_6; } if (len <= 119) { return MCS_7; } if (len <= 143) { return MCS_8; } if (len <= 155) { return MCS_9; } return MCS_1; /* error! */ } else { /* 3GPP TS 44.060 Table 10.2.1: RLC data block size, discounting padding in octet */ if (len <= 23) { return CS_1; } if (len <= 33) { return CS_2; } if (len <= 39) { return CS_3; } if (len <= 53) { return CS_4; } return CS_1; /* error! */ } } function f_rlcmac_block_ChCodingCommand2cs_mcs(ChCodingCommand chcc) return CodingScheme { select (chcc) { case (CH_CODING_CS1) { return CS_1; } case (CH_CODING_CS2) { return CS_2; } case (CH_CODING_CS3) { return CS_3; } case (CH_CODING_CS4) { return CS_4; } } return CS_1; } function f_rlcmac_block_EgprsChCodingCommand2cs_mcs(EgprsChCodingCommand echcc) return CodingScheme { select (echcc) { case (CH_CODING_MCS1) { return MCS_1; } case (CH_CODING_MCS2) { return MCS_2; } case (CH_CODING_MCS3) { return MCS_3; } case (CH_CODING_MCS4) { return MCS_4; } case (CH_CODING_MCS5) { return MCS_5; } case (CH_CODING_MCS6) { return MCS_6; } case (CH_CODING_MCS7) { return MCS_7; } case (CH_CODING_MCS8) { return MCS_8; } case (CH_CODING_MCS9) { return MCS_9; } /* CH_CODING_MCS5_7 */ /* CH_CODING_MCS6_9 */ } return MCS_1; } /* 1 -> CS_1 / MCS_1, 2 -> CS_2 / MCS_2, etc. */ function f_rlcmac_block_int2cs_mcs(integer n, boolean is_mcs) return CodingScheme { var CodingScheme cs_mcs; if (not is_mcs) { int2enum(n - 1, cs_mcs); return cs_mcs; } else { cs_mcs := MCS_0; int2enum(enum2int(cs_mcs) + n, cs_mcs); return cs_mcs; } } /* Coding and Puncturing Scheme indicator field for Header type 1 in EGPRS TBF or EC TBF or downlink EGPRS2 TBF */ function f_rlcmac_cps_htype1_to_mcs(uint3_t cps) return CodingScheme { var CodingSchemeArray egprs_Header_type1_coding_puncturing_scheme_to_mcs := { MCS_9 /* 0x00, "(MCS-9/P1 ; MCS-9/P1)" */, MCS_9 /* 0x01, "(MCS-9/P1 ; MCS-9/P2)" */, MCS_9 /* 0x02, "(MCS-9/P1 ; MCS-9/P3)" */, MCS_0 /* 0x03, "reserved" */, MCS_9 /* 0x04, "(MCS-9/P2 ; MCS-9/P1)" */, MCS_9 /* 0x05, "(MCS-9/P2 ; MCS-9/P2)" */, MCS_9 /* 0x06, "(MCS-9/P2 ; MCS-9/P3)" */, MCS_0 /* 0x07, "reserved" */, MCS_9 /* 0x08, "(MCS-9/P3 ; MCS-9/P1)" */, MCS_9 /* 0x09, "(MCS-9/P3 ; MCS-9/P2)" */, MCS_9 /* 0x0A, "(MCS-9/P3 ; MCS-9/P3)" */, MCS_8 /* 0x0B, "(MCS-8/P1 ; MCS-8/P1)" */, MCS_8 /* 0x0C, "(MCS-8/P1 ; MCS-8/P2)" */, MCS_8 /* 0x0D, "(MCS-8/P1 ; MCS-8/P3)" */, MCS_8 /* 0x0E, "(MCS-8/P2 ; MCS-8/P1)" */, MCS_8 /* 0x0F, "(MCS-8/P2 ; MCS-8/P2)" */, MCS_8 /* 0x10, "(MCS-8/P2 ; MCS-8/P3)" */, MCS_8 /* 0x11, "(MCS-8/P3 ; MCS-8/P1)" */, MCS_8 /* 0x12, "(MCS-8/P3 ; MCS-8/P2)" */, MCS_8 /* 0x13, "(MCS-8/P3 ; MCS-8/P3)" */, MCS_7 /* 0x14, "(MCS-7/P1 ; MCS-7/P1)" */, MCS_7 /* 0x15, "(MCS-7/P1 ; MCS-7/P2)" */, MCS_7 /* 0x16, "(MCS-7/P1 ; MCS-7/P3)" */, MCS_7 /* 0x17, "(MCS-7/P2 ; MCS-7/P1)" */, MCS_7 /* 0x18, "(MCS-7/P2 ; MCS-7/P2)" */, MCS_7 /* 0x19, "(MCS-7/P2 ; MCS-7/P3)" */, MCS_7 /* 0x1A, "(MCS-7/P3 ; MCS-7/P1)" */, MCS_7 /* 0x1B, "(MCS-7/P3 ; MCS-7/P2)" */, MCS_7 /* 0x1C, "(MCS-7/P3 ; MCS-7/P3)" */, MCS_0 /* 0x1D, "reserved" */, MCS_0 /* 0x1E, "reserved" */, MCS_0 /* 0x1F, "reserved" */ }; return egprs_Header_type1_coding_puncturing_scheme_to_mcs[cps]; } /* Coding and Puncturing Scheme indicator field for Header type 2 in (EC-)EGPRS TBF or uplink EGPRS2-A TBF */ function f_rlcmac_cps_htype2_to_mcs(uint3_t cps) return CodingScheme { var CodingSchemeArray egprs_Header_type2_coding_puncturing_scheme_to_mcs := { MCS_6 /* {0x00, "MCS-6/P1"} */, MCS_6 /* {0x01, "MCS-6/P2"} */, MCS_6 /* {0x02, "MCS-6/P1 with 6 octet padding"} */, MCS_6 /* {0x03, "MCS-6/P2 with 6 octet padding "} */, MCS_5 /* {0x04, "MCS-5/P1"} */, MCS_5 /* {0x05, "MCS-5/P2"} */, MCS_5 /* {0x06, "MCS-6/P1 with 10 octet padding "} */, MCS_5 /* {0x07, "MCS-6/P2 with 10 octet padding "} */ }; return egprs_Header_type2_coding_puncturing_scheme_to_mcs[cps]; } /* Coding and Puncturing Scheme indicator field for Header type 3 */ function f_rlcmac_cps_htype3_to_mcs(uint3_t cps) return CodingScheme { var CodingSchemeArray egprs_Header_type3_coding_puncturing_scheme_to_mcs := { MCS_4 /* {0x00, "MCS-4/P1"} */, MCS_4 /* {0x01, "MCS-4/P2"} */, MCS_4 /* {0x02, "MCS-4/P3"} */, MCS_3 /* {0x03, "MCS-3/P1"} */, MCS_3 /* {0x04, "MCS-3/P2"} */, MCS_3 /* {0x05, "MCS-3/P3"} */, MCS_3 /* {0x06, "MCS-3/P1 with padding"} */, MCS_3 /* {0x07, "MCS-3/P2 with padding"} */, MCS_3 /* {0x08, "MCS-3/P3 with padding"} */, MCS_2 /* {0x09, "MCS-2/P1"} */, MCS_2 /* {0x0A, "MCS-2/P2"} */, MCS_1 /* {0x0B, "MCS-1/P1"} */, MCS_1 /* {0x0C, "MCS-1/P2"} */, MCS_2 /* {0x0D, "MCS-2/P1 with padding"} */, MCS_2 /* {0x0E, "MCS-2/P2 with padding"} */, MCS_0 /* {0x0F, "MCS-0"} */ }; return egprs_Header_type3_coding_puncturing_scheme_to_mcs[cps]; } function f_rlcmac_cps_htype_to_mcs(uint3_t cps, EgprsHeaderType htype) return CodingScheme { select (htype) { case (RLCMAC_HDR_TYPE_1) { return f_rlcmac_cps_htype1_to_mcs(cps); } case (RLCMAC_HDR_TYPE_2) { return f_rlcmac_cps_htype2_to_mcs(cps); } case (RLCMAC_HDR_TYPE_3) { return f_rlcmac_cps_htype3_to_mcs(cps); } } //TODO: return error here. return CS_1; } function f_rlcmac_mcs_to_cps_htype1(CodingScheme mcs, uint2_t part, boolean with_padding) return uint5_t { //TODO: implement similar to f_rlcmac_mcs_to_cps_htype3() //TODO: return error here. return 0; } function f_rlcmac_mcs_to_cps_htype2(CodingScheme mcs, uint2_t part, boolean with_padding) return uint5_t { //TODO: implement similar to f_rlcmac_mcs_to_cps_htype3() //TODO: return error here. return 0; } function f_rlcmac_mcs_to_cps_htype3(CodingScheme mcs, uint2_t part, boolean with_padding) return uint5_t { select (mcs) { case (MCS_4) { select (part) { case (1) { return 0; /* {0x00, "MCS-4/P1"} */ } case (2) { return 1; /* {0x01, "MCS-4/P2"} */ } case (3) { return 2; /* {0x01, "MCS-4/P2"} */ } } } case (MCS_3) { if (not with_padding) { select (part) { case (1) { return 3; /* {0x03, "MCS-3/P1"} */ } case (2) { return 4; /* {0x04, "MCS-3/P2"} */ } case (3) { return 5; /* {0x05, "MCS-3/P3"} */ } } } else { select (part) { case (1) { return 6; /* {0x06, "MCS-3/P1 with padding"} */ } case (2) { return 7; /* {0x07, "MCS-3/P2 with padding"} */ } case (3) { return 8; /* {0x08, "MCS-3/P3 with padding"} */ } } } } case (MCS_2) { if (not with_padding) { select (part) { case (1) { return 9; /* {0x09, "MCS-2/P1"} */ } case (2) { return 10; /* {0x0A, "MCS-2/P2"} */ } } } else { select (part) { case (1) { return 13; /* {0x0D, "MCS-2/P1 with padding"} */ } case (2) { return 14; /* {0x0E, "MCS-2/P2 with padding"} */} } } } case (MCS_1) { select (part) { case (1) { return 11; /* {0x0B, "MCS-1/P1"} */ } case (2) { return 12; /* {0x0C, "MCS-1/P2"} */ } } } case (MCS_0) { return 15; /* {0x0F, "MCS-0"} */ } } //TODO: return error here. return 0; } function f_rlcmac_mcs_to_cps(CodingScheme mcs, uint2_t part, boolean with_padding := false) return uint5_t { var EgprsHeaderType htype := f_rlcmac_mcs2headertype(mcs); select (htype) { case (RLCMAC_HDR_TYPE_1) { return f_rlcmac_mcs_to_cps_htype1(mcs, part, with_padding); } case (RLCMAC_HDR_TYPE_2) { return f_rlcmac_mcs_to_cps_htype2(mcs, part, with_padding); } case (RLCMAC_HDR_TYPE_3) { return f_rlcmac_mcs_to_cps_htype3(mcs, part, with_padding); } } //TODO: return error here. return 0; } template (value) RlcmacUlBlock ts_RLC_UL_CTRL_ACK(template (value) RlcmacUlCtrlMsg ctrl, MacPayloadType pt := MAC_PT_RLCMAC_NO_OPT, boolean retry := false) := { ctrl := { mac_hdr := { payload_type := pt, spare := '00000'B, retry := retry }, payload := ctrl } } private function f_presence_bit_chreq_desc(template (omit) ChannelReqDescription chreq_desc) return BIT1 { if (istemplatekind(chreq_desc, "omit")) { return '0'B; } return '1'B; } /* Send Template for Downlink ACK/NACK */ template RlcmacUlBlock ts_RLCMAC_DL_ACK_NACK(template uint5_t tfi, AckNackDescription andesc, boolean retry := false, template (omit) ChannelReqDescription chreq_desc := omit) := { ctrl := { mac_hdr := { payload_type := MAC_PT_RLCMAC_NO_OPT, spare := '00000'B, retry := retry }, payload := { msg_type := PACKET_DL_ACK_NACK, u := { dl_ack_nack := { dl_tfi := tfi, ack_nack_desc := andesc, chreq_desc_presence := f_presence_bit_chreq_desc(chreq_desc), chreq_desc := chreq_desc, ch_qual_rep := c_ChQualRep_default } } } } } /* Send Template for Egprs Downlink ACK/NACK */ template RlcmacUlBlock ts_RLCMAC_DL_ACK_NACK_EGPRS(template uint5_t tfi, EgprsAckNackDescription andesc, boolean retry := false, template (omit) ChannelReqDescription chreq_desc := omit) := { ctrl := { mac_hdr := { payload_type := MAC_PT_RLCMAC_NO_OPT, spare := '00000'B, retry := retry }, payload := { msg_type := PACKET_EGPRS_DL_ACK_NACK, u := { dl_ack_nack_egprs := { dl_tfi := tfi, ms_oom := '0'B, egprs_ch_qual_rep_presence := '0'B, egprs_ch_qual_rep := omit, chreq_desc_presence := f_presence_bit_chreq_desc(chreq_desc), chreq_desc := chreq_desc, pfi_presence := '0'B, pfi := omit, epdan_presence := '0'B, ack_nack_desc_ie := ts_EgprsAckNackDescriptionIE(andesc) } } } } } /* Template for uplink Data block */ template RlcmacUlBlock t_RLCMAC_UL_DATA(template CodingScheme cs, template uint5_t tfi, template uint4_t cv, template uint7_t bsn, template LlcBlocks blocks := {}, template boolean stall := false) := { data := { cs := cs, mac_hdr := { payload_type := MAC_PT_RLC_DATA, countdown := cv, stall_ind := stall, retry := false, spare := '0'B, pfi_ind := false, tfi := tfi, tlli_ind := false, bsn := bsn, e := false }, tlli := omit, pfi := omit, blocks := blocks } } template RlcmacUlBlock t_RLCMAC_UL_DATA_TLLI(template CodingScheme cs, template uint5_t tfi, template uint4_t cv, template uint7_t bsn, template LlcBlocks blocks := {}, template boolean stall := false, template GprsTlli tlli) := { data := { cs := cs, mac_hdr := { payload_type := MAC_PT_RLC_DATA, countdown := cv, stall_ind := stall, retry := false, spare := '0'B, pfi_ind := false, tfi := tfi, tlli_ind := true, bsn := bsn, e := false }, tlli := tlli, pfi := omit, blocks := blocks } } /* Template for uplink Data block */ template RlcmacUlBlock t_RLCMAC_UL_EGPRS_DATA(CodingScheme mcs, template uint5_t tfi, template uint4_t cv, template uint11_t bsn1, template uint8_t bsn2_offset := 0, template EgprsLlcBlocks blocks := {}) := { data_egprs := { mcs := mcs, mac_hdr := { header_type := f_rlcmac_mcs2headertype(mcs), tfi := tfi, countdown := cv, foi_si := '0'B, r_ri := '0'B, bsn1 := bsn1, bsn2_offset := bsn2_offset, cps := f_rlcmac_mcs_to_cps(mcs, 1, false), pfi_ind := false, rsb := '0'B, spb := '00'B }, tlli_ind := false, e := false, tlli := omit, pfi := omit, blocks := blocks } } template DlMacHeader t_RLCMAC_DlMacH(template (present) MacPayloadType pt, template (present) boolean rrbp_valid, template (present) MacRrbp rrbp, template (present) uint3_t usf) := { payload_type := pt, rrbp := rrbp, rrbp_valid := rrbp_valid, usf := usf } template RlcmacDlBlock tr_RLCMAC_DUMMY_CTRL(template uint3_t usf := ?, template PageMode page_mode := ?) := { ctrl := { mac_hdr := { payload_type := (MAC_PT_RLCMAC_NO_OPT, MAC_PT_RLCMAC_OPT), rrbp:= ?, rrbp_valid := ?, usf := usf }, opt := *, payload := { msg_type := PACKET_DL_DUMMY_CTRL, u := { dl_dummy := { page_mode := page_mode, persistence_levels_present := ?, persistence_levels := * } } } } } template RlcmacDlBlock tr_RLCMAC_DL_PACKET_ASS(template uint3_t usf := ?) := { ctrl := { mac_hdr := { payload_type := (MAC_PT_RLCMAC_NO_OPT, MAC_PT_RLCMAC_OPT), rrbp:= ?, rrbp_valid := ?, usf := usf }, opt := *, payload := { msg_type := PACKET_DL_ASSIGNMENT, u := { dl_assignment := { page_mode := ?, pres1 := ?, persistence_levels := *, tfi_or_tlli := ?, egprs2 := '0'B, mac_mode := ?, rlc_mode := ?, control_ack := ?, timeslot_alloc := ?, pkt_ta := ?, p0_present := ?, p0 := *, reserved := *, pr_mode := *, freq_par_present := ?, freq_par := *, dl_tfi_ass_present := ?, dl_tfi_assignment := *, pwr_ctrl_present := ?, pwr_ctrl := *, tbf_starting_time_present := ?, tbf_starting_time := *, spare := '0'B, rel_additions := * } } } } } template RlcmacDlBlock tr_RLCMAC_UL_PACKET_ASS(template uint3_t usf := ?) := { ctrl := { mac_hdr := { payload_type := (MAC_PT_RLCMAC_NO_OPT, MAC_PT_RLCMAC_OPT), rrbp:= ?, rrbp_valid := ?, usf := usf }, opt := *, payload := { msg_type := PACKET_UL_ASSIGNMENT, u := { ul_assignment := { page_mode := ?, persistence_levels_present := ?, persistence_levels := *, identity := ?, is_egprs := ?, /* msg escape */ gprs := *, egprs := * } } } } } template RlcmacDlBlock tr_RLCMAC_UL_PACKET_ASS_GPRS(template uint3_t usf := ?, template PktUlAssGprs gprs := ?) modifies tr_RLCMAC_UL_PACKET_ASS := { ctrl := { payload := { u := { ul_assignment := { is_egprs := '0'B, gprs := gprs, egprs := omit } } } } } template RlcmacDlBlock tr_RLCMAC_UL_PACKET_ASS_EGPRS(template uint3_t usf := ?, template PktUlAssEgprs egprs := ?) modifies tr_RLCMAC_UL_PACKET_ASS := { ctrl := { payload := { u := { ul_assignment := { is_egprs := '1'B, gprs := omit, egprs := egprs } } } } } /* Receive Template for Uplink ACK/NACK */ template RlcmacDlBlock tr_RLCMAC_UL_ACK_NACK(template uint5_t ul_tfi) := { ctrl := { mac_hdr := { payload_type := (MAC_PT_RLCMAC_NO_OPT, MAC_PT_RLCMAC_OPT), rrbp:= ?, rrbp_valid := ?, usf := ? }, opt := *, payload := { msg_type := PACKET_UL_ACK_NACK, u := { ul_ack_nack := { page_mode := ?, msg_excape := ?, uplink_tfi := ul_tfi, is_egprs := ?, gprs := *, egprs := * } } } } }; template RlcmacDlBlock tr_RLCMAC_UL_ACK_NACK_GPRS(template uint5_t ul_tfi, template UlAckNackGprs gprs := tr_UlAckNackGprs(*)) modifies tr_RLCMAC_UL_ACK_NACK := { ctrl := { payload := { u := { ul_ack_nack := { is_egprs := '0'B, gprs := gprs, egprs := omit } } } } }; template RlcmacDlBlock tr_RLCMAC_UL_ACK_NACK_EGPRS(template uint5_t ul_tfi, template UlAckNackEgprs egprs := tr_UlAckNackEgprs(*)) modifies tr_RLCMAC_UL_ACK_NACK := { ctrl := { payload := { u := { ul_ack_nack := { is_egprs := '1'B, gprs := omit, egprs := egprs } } } } }; template RlcmacDlBlock tr_RLCMAC_PACKET_PAG_REQ(template uint3_t usf := ?) := { ctrl := { mac_hdr := { payload_type := MAC_PT_RLCMAC_NO_OPT, rrbp:= ?, rrbp_valid := ?, usf := usf }, opt := *, payload := { msg_type := PACKET_PAGING_REQUEST, u := { paging := { page_mode := ?, persistence_levels_present := ?, persistence_levels := *, nln_present := ?, nln := *, repeated_pageinfo := *, repeated_pageinfo_term := '0'B } } } } } /* Either GPRS or EGPRS data block with arbitrary contents */ template RlcmacDlBlock tr_RLCMAC_DATA := (tr_RLCMAC_DATA_GPRS, tr_RLCMAC_DATA_EGPRS); template RlcmacDlBlock tr_RLCMAC_DATA_GPRS(template (present) boolean rrbp_valid := ?, template (present) MacRrbp rrbp := ?, template (present) uint3_t usf := ?) := { data := { cs := ?, mac_hdr := { mac_hdr := { payload_type := MAC_PT_RLC_DATA, rrbp := rrbp, rrbp_valid := rrbp_valid, usf := usf }, hdr_ext := ? }, blocks := ? } } template RlcmacDlBlock tr_RLCMAC_DATA_EGPRS := { data_egprs := { mcs := ?, mac_hdr := ?, fbi := ?, e := ?, blocks := ? } } /* Template for Uplink MAC Control Header */ template UlMacCtrlHeader t_RLCMAC_UlMacCtrlH(template MacPayloadType pt, template boolean retry := false) := { payload_type := pt, spare := '00000'B, retry := retry } /* Template for Uplink Control ACK */ template RlcmacUlBlock ts_RLCMAC_CTRL_ACK(GprsTlli tlli, CtrlAck ack := MS_RCVD_TWO_RLC_SAME_RTI_DIFF_RBSN) := { ctrl := { mac_hdr := t_RLCMAC_UlMacCtrlH(MAC_PT_RLCMAC_NO_OPT), payload := { msg_type := PACKET_CONTROL_ACK, u := { ctrl_ack := { tlli := tlli, ctrl_ack := ack } } } } } template LlcBlockHdr t_RLCMAC_LLCBLOCK_HDR(uint16_t length_ind, boolean more, boolean e) := { length_ind := length_ind, more := more, /* 1 = new LLC PDU starts */ e := e /* 0 = another extension octet after LLC PDU, 1 = no more extension octets */ } template EgprsLlcBlockHdr t_RLCMAC_LLCBLOCK_EGPRS_HDR(uint16_t length_ind, boolean e) := { length_ind := length_ind, e := e /* 0 = another extension octet after LLC PDU, 1 = no more extension octets */ } /* Template for a LlcBlock (part of a LLC frame inside RlcMacDlDataBlock */ template LlcBlock t_RLCMAC_LLCBLOCK(octetstring data, template (omit) LlcBlockHdr llc_hdr := omit) := { hdr := llc_hdr, /* omit = let encoder figure out the header */ payload := data } /* Template for a LlcBlock (part of a LLC frame inside RlcMacEgprs?lDataBlock */ template EgprsLlcBlock t_RLCMAC_LLCBLOCK_EGPRS(octetstring data, template (omit) EgprsLlcBlockHdr llc_hdr := omit) := { /* let encoder figure out the header */ hdr := llc_hdr, /* omit = let encoder figure out the header */ payload := data } } with { encode "RAW"; variant "FIELDORDER(msb)" }