Harald Welte | a0895f9 | 2018-03-08 11:51:23 +0100 | [diff] [blame] | 1 | module PCU_Tests { |
Pau Espin Pedrol | 8dd59fb | 2020-04-29 15:08:16 +0200 | [diff] [blame] | 2 | |
| 3 | /* "RAW" PCU tests: Talk directly to the PCU socket of OsmoPCU on the one hand side (emulating |
| 4 | the BTS/BSC side PCU socket server) and the Gb interface on the other hand side. No NS/BSSGP |
| 5 | Emulation is used; rather, we simply use the NS_CodecPort to implement both standard and non- |
| 6 | standard procedures on the NS and BSSGP level. The goal of these tests is to test exactly |
| 7 | those NS and BSSGP implementations on the BSS (PCU) side. */ |
| 8 | |
| 9 | /* (C) 2018-2019 Harald Welte <laforge@gnumonks.org> |
| 10 | * (C) 2019 Vadim Yanitskiy <axilirator@gmail.com> |
| 11 | * All rights reserved. |
| 12 | * |
| 13 | * Released under the terms of GNU General Public License, Version 2 or |
| 14 | * (at your option) any later version. |
| 15 | * |
| 16 | * SPDX-License-Identifier: GPL-2.0-or-later |
| 17 | */ |
| 18 | |
| 19 | friend module PCU_Tests_NS; |
| 20 | |
| 21 | import from General_Types all; |
| 22 | import from Osmocom_Types all; |
| 23 | import from GSM_Types all; |
| 24 | import from GSM_RR_Types all; |
| 25 | |
| 26 | import from Osmocom_VTY_Functions all; |
| 27 | import from TELNETasp_PortType all; |
| 28 | |
| 29 | import from MobileL3_GMM_SM_Types all; |
| 30 | import from RLCMAC_CSN1_Types all; |
Pau Espin Pedrol | e8d7d16 | 2020-04-29 19:07:36 +0200 | [diff] [blame] | 31 | import from RLCMAC_CSN1_Templates all; |
Pau Espin Pedrol | 8dd59fb | 2020-04-29 15:08:16 +0200 | [diff] [blame] | 32 | import from RLCMAC_Types all; |
Pau Espin Pedrol | e8d7d16 | 2020-04-29 19:07:36 +0200 | [diff] [blame] | 33 | import from RLCMAC_Templates all; |
Pau Espin Pedrol | 8dd59fb | 2020-04-29 15:08:16 +0200 | [diff] [blame] | 34 | |
| 35 | import from MobileL3_CommonIE_Types all; |
| 36 | import from L3_Templates all; |
| 37 | |
| 38 | import from NS_Types all; |
| 39 | import from BSSGP_Types all; |
| 40 | import from Osmocom_Gb_Types all; |
| 41 | |
| 42 | import from BSSGP_Emulation all; /* BssgpConfig */ |
| 43 | import from NS_Emulation all; /* NSConfiguration */ |
| 44 | |
| 45 | import from UD_Types all; |
| 46 | import from PCUIF_Types all; |
| 47 | import from PCUIF_CodecPort all; |
| 48 | import from PCUIF_Components all; |
| 49 | import from IPL4asp_Types all; |
| 50 | import from Native_Functions all; |
| 51 | import from SGSN_Components all; |
| 52 | |
| 53 | modulepar { |
| 54 | charstring mp_pcu_sock_path := PCU_SOCK_DEFAULT; |
| 55 | |
| 56 | float X2002 := 0.2; /* Timer -2002, IMM ASSIGN confirm delay */ |
| 57 | } |
| 58 | |
| 59 | |
| 60 | /* FIXME: make sure to use parameters from mp_gb_cfg.cell_id in the PCU INFO IND */ |
| 61 | private template (value) PCUIF_info_ind ts_PCUIF_INFO_default := { |
| 62 | version := PCU_IF_VERSION, |
| 63 | flags := c_PCUIF_Flags_default, |
| 64 | trx := valueof(ts_PCUIF_InfoTrxs_def), |
| 65 | bsic := 7, |
| 66 | mcc := 262, |
| 67 | mnc := 42, |
| 68 | mnc_3_digits := 0, |
| 69 | lac := 13135, |
| 70 | rac := 0, |
| 71 | nsei := mp_nsconfig.nsei, |
| 72 | nse_timer := { 3, 3, 3, 3, 30, 3, 10 }, |
| 73 | cell_timer := { 3, 3, 3, 3, 3, 10, 3, 10, 3, 10, 3 }, |
| 74 | cell_id := 20960, |
| 75 | repeat_time := 5 * 50, |
| 76 | repeat_count := 3, |
| 77 | bvci := mp_gb_cfg.bvci, |
| 78 | t3142 := 20, |
| 79 | t3169 := 5, |
| 80 | t3191 := 5, |
| 81 | t3193_10ms := 160, |
| 82 | t3195 := 5, |
| 83 | t3101 := 10, |
| 84 | t3103 := 4, |
| 85 | t3105 := 8, |
| 86 | cv_countdown := 15, |
| 87 | dl_tbf_ext := 250 * 10, /* ms */ |
| 88 | ul_tbf_ext := 250 * 10, /* ms */ |
| 89 | initial_cs := 2, |
| 90 | initial_mcs := 6, |
| 91 | nsvci := { mp_nsconfig.nsvci, 0 }, |
| 92 | local_pprt := { mp_nsconfig.remote_udp_port, 0 }, |
| 93 | remote_port := { mp_nsconfig.local_udp_port, 0 }, |
| 94 | remote_ip := { f_inet_haddr(mp_nsconfig.local_ip) , '00000000'O } |
| 95 | } |
| 96 | |
| 97 | type record lqual_range { |
| 98 | /* component reference to the IPA_Client component used for RSL */ |
| 99 | uint8_t low, |
| 100 | uint8_t high |
| 101 | } |
| 102 | |
| 103 | type component RAW_PCU_Test_CT extends bssgp_CT { |
Vadim Yanitskiy | 91f8a09 | 2020-05-06 21:41:05 +0700 | [diff] [blame] | 104 | /* PCU interface abstraction component */ |
| 105 | var RAW_PCUIF_CT vc_PCUIF; |
| 106 | /* Virtual BTS component */ |
| 107 | var RAW_PCU_BTS_CT vc_BTS; |
| 108 | |
Pau Espin Pedrol | 8dd59fb | 2020-04-29 15:08:16 +0200 | [diff] [blame] | 109 | /* Connection to the BTS component (one for now) */ |
| 110 | port RAW_PCU_MSG_PT BTS; |
| 111 | /* Connection to the PCUIF component */ |
| 112 | port RAW_PCU_MSG_PT PCUIF; |
| 113 | /* VTY connection to the PCU */ |
| 114 | port TELNETasp_PT PCUVTY; |
| 115 | |
| 116 | /* Uplink CS/MCS thresholds, default from pcu_main.c: */ |
| 117 | var lqual_range g_cs_lqual_ranges[4] := {{low := 0, high := 6}, |
| 118 | {low := 5, high := 8}, |
| 119 | {low := 7, high := 13}, |
| 120 | {low := 12,high := 35}}; |
| 121 | var lqual_range g_mcs_lqual_ranges[9] := {{low := 0, high := 6}, |
| 122 | {low := 5, high := 8}, |
| 123 | {low := 7, high := 13}, |
| 124 | {low := 12,high := 15}, |
| 125 | {low := 14, high := 17}, |
| 126 | {low := 16, high := 18}, |
| 127 | {low := 17,high := 20}, |
| 128 | {low := 19, high := 24}, |
| 129 | {low := 23,high := 35}}; |
| 130 | var uint8_t g_cs_initial_dl := 1; |
| 131 | var uint8_t g_cs_initial_ul := 1; |
| 132 | var uint8_t g_mcs_initial_dl := 1; |
| 133 | var uint8_t g_mcs_initial_ul := 1; |
| 134 | var uint8_t g_cs_max_dl := 4; |
| 135 | var uint8_t g_cs_max_ul := 4; |
| 136 | var uint8_t g_mcs_max_dl := 9; |
| 137 | var uint8_t g_mcs_max_ul := 9; |
| 138 | |
Pau Espin Pedrol | 5feace6 | 2020-05-14 16:44:18 +0200 | [diff] [blame] | 139 | /* Value at which Countdown Procedure starts. Announced by network (GPRS Cell Options as per TS 04.60 Chapter 12.24) */ |
| 140 | var uint4_t g_bs_cv_max := 4; |
| 141 | |
Pau Espin Pedrol | 8dd59fb | 2020-04-29 15:08:16 +0200 | [diff] [blame] | 142 | var boolean g_egprs_only := false; |
Pau Espin Pedrol | 0c0bf87 | 2020-05-14 15:50:49 +0200 | [diff] [blame] | 143 | var boolean g_force_two_phase_access := false; |
Pau Espin Pedrol | 8dd59fb | 2020-04-29 15:08:16 +0200 | [diff] [blame] | 144 | |
| 145 | /* Guard timeout */ |
| 146 | timer g_T_guard := 60.0; |
| 147 | }; |
| 148 | |
| 149 | private altstep as_Tguard_RAW() runs on RAW_PCU_Test_CT { |
| 150 | [] g_T_guard.timeout { |
| 151 | setverdict(fail, "Timeout of T_guard"); |
Vadim Yanitskiy | 91f8a09 | 2020-05-06 21:41:05 +0700 | [diff] [blame] | 152 | f_shutdown(__BFILE__, __LINE__); |
Pau Espin Pedrol | 8dd59fb | 2020-04-29 15:08:16 +0200 | [diff] [blame] | 153 | } |
| 154 | } |
| 155 | |
| 156 | private function f_pcuvty_set_allowed_cs_mcs() runs on RAW_PCU_Test_CT { |
| 157 | f_vty_config2(PCUVTY, {"pcu"}, "cs " & int2str(g_cs_initial_dl) & " " & int2str(g_cs_initial_ul)); |
| 158 | f_vty_config2(PCUVTY, {"pcu"}, "cs max " & int2str(g_cs_max_dl) & " " & int2str(g_cs_max_ul)); |
| 159 | |
| 160 | f_vty_config2(PCUVTY, {"pcu"}, "mcs " & int2str(g_mcs_initial_dl) & " " & int2str(g_mcs_initial_ul)); |
| 161 | f_vty_config2(PCUVTY, {"pcu"}, "mcs max " & int2str(g_mcs_max_dl) & " " & int2str(g_mcs_max_ul)); |
| 162 | } |
| 163 | |
| 164 | private function f_pcuvty_set_link_quality_ranges() runs on RAW_PCU_Test_CT { |
| 165 | var charstring cmd; |
| 166 | |
| 167 | cmd := "cs link-quality-ranges" & |
| 168 | " cs1 " & int2str(g_cs_lqual_ranges[0].high) & |
| 169 | " cs2 " & int2str(g_cs_lqual_ranges[1].low) & " " & int2str(g_cs_lqual_ranges[1].high) & |
| 170 | " cs3 " & int2str(g_cs_lqual_ranges[2].low) & " " & int2str(g_cs_lqual_ranges[2].high) & |
| 171 | " cs4 " & int2str(g_cs_lqual_ranges[3].low); |
| 172 | f_vty_config2(PCUVTY, {"pcu"}, cmd); |
| 173 | |
| 174 | cmd := "mcs link-quality-ranges" & |
| 175 | " mcs1 " & int2str(g_mcs_lqual_ranges[0].high) & |
| 176 | " mcs2 " & int2str(g_mcs_lqual_ranges[1].low) & " " & int2str(g_mcs_lqual_ranges[1].high) & |
| 177 | " mcs3 " & int2str(g_mcs_lqual_ranges[2].low) & " " & int2str(g_mcs_lqual_ranges[2].high) & |
| 178 | " mcs4 " & int2str(g_mcs_lqual_ranges[3].low) & " " & int2str(g_mcs_lqual_ranges[3].high) & |
| 179 | " mcs5 " & int2str(g_mcs_lqual_ranges[4].low) & " " & int2str(g_mcs_lqual_ranges[4].high) & |
| 180 | " mcs6 " & int2str(g_mcs_lqual_ranges[5].low) & " " & int2str(g_mcs_lqual_ranges[5].high) & |
| 181 | " mcs7 " & int2str(g_mcs_lqual_ranges[6].low) & " " & int2str(g_mcs_lqual_ranges[6].high) & |
| 182 | " mcs8 " & int2str(g_mcs_lqual_ranges[7].low) & " " & int2str(g_mcs_lqual_ranges[7].high) & |
| 183 | " mcs9 " & int2str(g_mcs_lqual_ranges[8].low); |
| 184 | f_vty_config2(PCUVTY, {"pcu"}, cmd); |
| 185 | } |
| 186 | |
| 187 | private function f_init_vty(charstring id) runs on RAW_PCU_Test_CT { |
| 188 | map(self:PCUVTY, system:PCUVTY); |
| 189 | f_vty_set_prompts(PCUVTY); |
| 190 | f_vty_transceive(PCUVTY, "enable"); |
| 191 | |
| 192 | if (g_egprs_only) { |
| 193 | f_vty_config2(PCUVTY, {"pcu"}, "egprs only"); |
| 194 | } else { |
| 195 | f_vty_config2(PCUVTY, {"pcu"}, "no egprs"); |
| 196 | } |
Pau Espin Pedrol | 0c0bf87 | 2020-05-14 15:50:49 +0200 | [diff] [blame] | 197 | |
| 198 | if (g_force_two_phase_access) { |
| 199 | f_vty_config2(PCUVTY, {"pcu"}, "two-phase-access"); |
| 200 | } else { |
| 201 | f_vty_config2(PCUVTY, {"pcu"}, "no two-phase-access"); |
| 202 | } |
Pau Espin Pedrol | 8dd59fb | 2020-04-29 15:08:16 +0200 | [diff] [blame] | 203 | } |
| 204 | |
Pau Espin Pedrol | 2456dad | 2020-04-30 20:22:38 +0200 | [diff] [blame] | 205 | function f_init_raw(charstring id, template (value) PCUIF_info_ind info_ind := ts_PCUIF_INFO_default) |
Pau Espin Pedrol | 8dd59fb | 2020-04-29 15:08:16 +0200 | [diff] [blame] | 206 | runs on RAW_PCU_Test_CT { |
Pau Espin Pedrol | 8dd59fb | 2020-04-29 15:08:16 +0200 | [diff] [blame] | 207 | /* Start the guard timer */ |
| 208 | g_T_guard.start; |
| 209 | activate(as_Tguard_RAW()); |
| 210 | |
| 211 | /* Init PCU interface component */ |
| 212 | vc_PCUIF := RAW_PCUIF_CT.create("PCUIF-" & id); |
| 213 | connect(vc_PCUIF:MTC, self:PCUIF); |
| 214 | map(vc_PCUIF:PCU, system:PCU); |
| 215 | |
| 216 | /* Create one BTS component (we may want more some day) */ |
| 217 | vc_BTS := RAW_PCU_BTS_CT.create("BTS-" & id); |
| 218 | connect(vc_BTS:PCUIF, vc_PCUIF:BTS); |
| 219 | connect(vc_BTS:TC, self:BTS); |
| 220 | |
| 221 | f_init_vty(id); |
| 222 | |
| 223 | vc_PCUIF.start(f_PCUIF_CT_handler(mp_pcu_sock_path)); |
| 224 | vc_BTS.start(f_BTS_CT_handler(0, valueof(info_ind))); |
| 225 | |
| 226 | /* Wait until the BTS is ready (SI13 negotiated) */ |
| 227 | BTS.receive(tr_RAW_PCU_EV(BTS_EV_SI13_NEGO)); |
| 228 | } |
| 229 | |
Vadim Yanitskiy | 91f8a09 | 2020-05-06 21:41:05 +0700 | [diff] [blame] | 230 | private function f_shutdown(charstring file, integer line, |
| 231 | boolean final := false) |
| 232 | runs on RAW_PCU_Test_CT { |
| 233 | /* Determine if the test case was aborted in the middle */ |
| 234 | if (not final) { |
| 235 | log("Test case ", testcasename(), " aborted at ", file, ":", line); |
| 236 | } else { |
| 237 | /* Guard verdict to avoid 'none' */ |
| 238 | setverdict(pass); |
| 239 | } |
| 240 | |
| 241 | /* Properly shutdown virtual BTS and its clock generator */ |
| 242 | BTS.send(ts_RAW_PCU_CMD(GENERAL_CMD_SHUTDOWN)); |
| 243 | vc_BTS.done; /* wait untill it's done */ |
| 244 | |
| 245 | /* Shutdown the others and MTC */ |
| 246 | all component.stop; |
| 247 | mtc.stop; |
| 248 | } |
| 249 | |
Pau Espin Pedrol | 8dd59fb | 2020-04-29 15:08:16 +0200 | [diff] [blame] | 250 | template AckNackDescription t_AckNackDescription_init := { |
| 251 | final_ack := '0'B, |
| 252 | starting_seq_nr := 0, |
| 253 | receive_block_bitmap := '0000000000000000000000000000000000000000000000000000000000000000'B |
| 254 | } |
| 255 | |
Pau Espin Pedrol | 02c972d | 2020-05-13 15:56:16 +0200 | [diff] [blame] | 256 | private function f_rlcmac_dl_block_get_tfi(RlcmacDlBlock dl_block) |
| 257 | runs on RAW_PCU_Test_CT return uint5_t { |
Pau Espin Pedrol | 8dd59fb | 2020-04-29 15:08:16 +0200 | [diff] [blame] | 258 | if (ischosen(dl_block.data)) { |
| 259 | return dl_block.data.mac_hdr.hdr_ext.tfi; |
Pau Espin Pedrol | 02c972d | 2020-05-13 15:56:16 +0200 | [diff] [blame] | 260 | } else if (ischosen(dl_block.data_egprs)) { |
Pau Espin Pedrol | 8dd59fb | 2020-04-29 15:08:16 +0200 | [diff] [blame] | 261 | return dl_block.data_egprs.mac_hdr.tfi; |
Pau Espin Pedrol | 02c972d | 2020-05-13 15:56:16 +0200 | [diff] [blame] | 262 | } else { /* Ctrl block */ |
Pau Espin Pedrol | 45b664b | 2020-05-14 15:16:40 +0200 | [diff] [blame] | 263 | if (match(dl_block, tr_RLCMAC_UL_PACKET_ASS_GPRS(?, tr_PktUlAssGprsDynamic(tr_DynamicAllocation(?))))) { |
Pau Espin Pedrol | 02c972d | 2020-05-13 15:56:16 +0200 | [diff] [blame] | 264 | return dl_block.ctrl.payload.u.ul_assignment.gprs.dyn_block_alloc.ul_tfi_assignment; |
| 265 | } |
Pau Espin Pedrol | 45b664b | 2020-05-14 15:16:40 +0200 | [diff] [blame] | 266 | if (match(dl_block, tr_RLCMAC_UL_PACKET_ASS_EGPRS(?, tr_PktUlAssEgprsDynamic(tr_DynamicAllocation(?))))) { |
| 267 | return dl_block.ctrl.payload.u.ul_assignment.egprs.dyn_block_alloc.ul_tfi_assignment; |
| 268 | } |
Pau Espin Pedrol | 8dd59fb | 2020-04-29 15:08:16 +0200 | [diff] [blame] | 269 | } |
Pau Espin Pedrol | 02c972d | 2020-05-13 15:56:16 +0200 | [diff] [blame] | 270 | setverdict(fail, "DlBlock doesn't contain a TFI:", dl_block); |
| 271 | f_shutdown(__BFILE__, __LINE__); |
| 272 | return 0; /* make compiler happy */ |
Pau Espin Pedrol | 8dd59fb | 2020-04-29 15:08:16 +0200 | [diff] [blame] | 273 | } |
| 274 | |
Pau Espin Pedrol | 42acafc | 2020-05-14 15:18:38 +0200 | [diff] [blame] | 275 | /* Get the Chan coding command from a dl block containing PACCH UL Assignment */ |
| 276 | private function f_rlcmac_dl_block_get_assigned_ul_cs_mcs(RlcmacDlBlock dl_block) |
| 277 | runs on RAW_PCU_Test_CT return CodingScheme { |
| 278 | if (match(dl_block, tr_RLCMAC_UL_PACKET_ASS_GPRS(?, tr_PktUlAssGprsDynamic(?)))) { |
| 279 | return f_rlcmac_block_ChCodingCommand2cs_mcs(dl_block.ctrl.payload.u.ul_assignment.gprs.ch_coding_cmd); |
| 280 | } |
| 281 | if (match(dl_block, tr_RLCMAC_UL_PACKET_ASS_EGPRS(?, tr_PktUlAssEgprsDynamic(?)))) { |
| 282 | return f_rlcmac_block_EgprsChCodingCommand2cs_mcs(dl_block.ctrl.payload.u.ul_assignment.egprs.chan_coding_cmd); |
| 283 | } |
| 284 | setverdict(fail, "DlBlock doesn't contain CS_MCS information:", dl_block); |
| 285 | f_shutdown(__BFILE__, __LINE__); |
| 286 | return CS_1; /* make compiler happy */ |
| 287 | } |
| 288 | |
Pau Espin Pedrol | 8dd59fb | 2020-04-29 15:08:16 +0200 | [diff] [blame] | 289 | /* TS 44.060 sec 12.3 Ack/Nack Description */ |
| 290 | private function f_acknackdesc_ack_block(inout AckNackDescription desc, RlcmacDlBlock dl_block, BIT1 final_ack := '0'B) |
| 291 | { |
| 292 | var uint7_t bsn; |
| 293 | var integer i; |
| 294 | var integer inc; |
| 295 | |
| 296 | if (ischosen(dl_block.data)) { |
| 297 | bsn := dl_block.data.mac_hdr.hdr_ext.bsn; |
| 298 | } else { |
| 299 | bsn := dl_block.data_egprs.mac_hdr.bsn1; |
| 300 | } |
| 301 | |
| 302 | inc := bsn - desc.starting_seq_nr + 1; |
| 303 | /* Filling hole? */ |
| 304 | if (bsn < desc.starting_seq_nr) { |
| 305 | desc.receive_block_bitmap[lengthof(desc.receive_block_bitmap) - (desc.starting_seq_nr - bsn)] := int2bit(1, 1); |
| 306 | return; |
| 307 | } |
| 308 | |
| 309 | /* SSN is increased, and so RBB values need to be moved */ |
| 310 | for (i := 0; i < lengthof(desc.receive_block_bitmap) - inc; i := i+1) { |
| 311 | desc.receive_block_bitmap[i] := desc.receive_block_bitmap[i + inc]; |
| 312 | } |
| 313 | for (i := lengthof(desc.receive_block_bitmap) - inc; i < lengthof(desc.receive_block_bitmap) - 1; i := i+1) { |
| 314 | desc.receive_block_bitmap[i] := int2bit(0, 1); |
| 315 | } |
| 316 | /* Now we can set current bit and update SSN */ |
| 317 | desc.starting_seq_nr := bsn + 1; |
| 318 | desc.receive_block_bitmap[lengthof(desc.receive_block_bitmap) - 1] := int2bit(1, 1); |
| 319 | |
| 320 | /* Finally update the final_ack bit as requested: */ |
| 321 | desc.final_ack := final_ack; |
| 322 | } |
| 323 | |
| 324 | /* This function can be used to send DATA.cnf in response to the IUT originated DATA.req. |
| 325 | * NOTE: it's the responsibility of caller to make sure that pcu_msg contains u.data_req. */ |
| 326 | private function f_pcuif_tx_data_cnf(in PCUIF_Message pcu_msg) |
| 327 | runs on RAW_PCU_Test_CT { |
| 328 | var PCUIF_Message pcu_msg_cnf := { |
| 329 | msg_type := PCU_IF_MSG_DATA_CNF, |
| 330 | bts_nr := pcu_msg.bts_nr, |
| 331 | spare := pcu_msg.spare, |
| 332 | u := { data_cnf := pcu_msg.u.data_req } |
| 333 | }; |
| 334 | |
| 335 | /* PCU wants DATA.cnf containing basically everything that was in DATA.req, |
| 336 | * but PCU_IF_SAPI_PCH is a special case - paging group shall be excluded. */ |
| 337 | if (pcu_msg.u.data_req.sapi == PCU_IF_SAPI_PCH) { |
| 338 | pcu_msg_cnf.u.data_cnf.data := substr(pcu_msg.u.data_req.data, 3, |
| 339 | pcu_msg.u.data_req.len - 3); |
| 340 | } |
| 341 | |
| 342 | BTS.send(pcu_msg_cnf); |
| 343 | } |
| 344 | |
| 345 | private function f_pcuif_rx_imm_ass(out GsmRrMessage rr_imm_ass, |
| 346 | template PCUIF_Sapi sapi := PCU_IF_SAPI_AGCH, |
| 347 | template GsmRrMessage t_imm_ass := ?, |
| 348 | uint8_t bts_nr := 0) |
| 349 | runs on RAW_PCU_Test_CT return boolean { |
| 350 | var PCUIF_Message pcu_msg; |
| 351 | var octetstring data; |
| 352 | timer T; |
| 353 | |
| 354 | T.start(2.0); |
| 355 | alt { |
| 356 | [] BTS.receive(tr_PCUIF_DATA_REQ(bts_nr := bts_nr, trx_nr := 0, ts_nr := 0, |
| 357 | sapi := sapi, data := ?)) -> value pcu_msg { |
| 358 | /* On PCH the payload is prefixed with paging group (3 octets): skip it. |
| 359 | * TODO: add an additional template parameter, so we can match it. */ |
| 360 | if (pcu_msg.u.data_req.sapi == PCU_IF_SAPI_PCH) { |
| 361 | data := substr(pcu_msg.u.data_req.data, 3, pcu_msg.u.data_req.len - 3); |
| 362 | } else { |
| 363 | data := pcu_msg.u.data_req.data; |
| 364 | } |
| 365 | |
| 366 | rr_imm_ass := dec_GsmRrMessage(data); |
| 367 | if (not match(rr_imm_ass, t_imm_ass)) { |
| 368 | /* Not for us? Wait for more. */ |
| 369 | repeat; |
| 370 | } |
| 371 | |
| 372 | log("Rx Immediate Assignment: ", rr_imm_ass); |
| 373 | setverdict(pass); |
| 374 | return true; |
| 375 | } |
| 376 | [] BTS.receive { repeat; } |
| 377 | [] T.timeout { |
| 378 | setverdict(fail, "Timeout waiting for Immediate Assignment"); |
| 379 | } |
| 380 | } |
| 381 | |
| 382 | return false; |
| 383 | } |
| 384 | |
Vadim Yanitskiy | f74ae99 | 2020-05-06 16:05:51 +0700 | [diff] [blame] | 385 | /* One phase packet access (see 3GPP TS 44.018, table 9.1.8.1) */ |
| 386 | private const BIT8 chan_req_def := '01111000'B; |
| 387 | |
Vadim Yanitskiy | 85cb991 | 2020-05-06 16:29:43 +0700 | [diff] [blame] | 388 | /* Establish an Uplink TBF by sending RACH.ind towards the PCU */ |
Pau Espin Pedrol | 8dd59fb | 2020-04-29 15:08:16 +0200 | [diff] [blame] | 389 | private function f_establish_tbf(out GsmRrMessage rr_imm_ass, uint8_t bts_nr := 0, |
Vadim Yanitskiy | f74ae99 | 2020-05-06 16:05:51 +0700 | [diff] [blame] | 390 | uint16_t ra := bit2int(chan_req_def), |
| 391 | uint8_t is_11bit := 0, |
Pau Espin Pedrol | 8dd59fb | 2020-04-29 15:08:16 +0200 | [diff] [blame] | 392 | PCUIF_BurstType burst_type := BURST_TYPE_0, |
| 393 | TimingAdvance ta := 0) |
| 394 | runs on RAW_PCU_Test_CT return boolean { |
| 395 | var uint32_t fn; |
| 396 | |
| 397 | /* FIXME: ask the BTS component to give us the current TDMA fn */ |
| 398 | fn := 1337 + ta; |
| 399 | |
| 400 | /* Send RACH.ind */ |
| 401 | log("Sending RACH.ind on fn=", fn, " with RA=", ra, ", TA=", ta); |
| 402 | BTS.send(ts_PCUIF_RACH_IND(bts_nr := bts_nr, trx_nr := 0, ts_nr := 0, |
| 403 | ra := ra, is_11bit := is_11bit, |
| 404 | burst_type := burst_type, |
| 405 | fn := fn, arfcn := 871, |
| 406 | qta := ta * 4)); |
| 407 | |
| 408 | /* 3GPP TS 44.018, table 9.1.8.1, note 2b: Request Reference shall be set to 127 |
| 409 | * when Immediate Assignment is triggered by EGPRS Packet Channel Request. Here |
| 410 | * we assume that 11 bit RA always contains EGPRS Packet Channel Request. */ |
| 411 | if (is_11bit != 0) { ra := 127; } |
| 412 | |
| 413 | /* Expect Immediate (TBF) Assignment on TS0/AGCH */ |
| 414 | return f_pcuif_rx_imm_ass(rr_imm_ass, PCU_IF_SAPI_AGCH, |
Vadim Yanitskiy | 85cb991 | 2020-05-06 16:29:43 +0700 | [diff] [blame] | 415 | tr_IMM_TBF_ASS(false, ra, fn), |
Pau Espin Pedrol | 8dd59fb | 2020-04-29 15:08:16 +0200 | [diff] [blame] | 416 | bts_nr := bts_nr); |
| 417 | } |
| 418 | |
Pau Espin Pedrol | 02c972d | 2020-05-13 15:56:16 +0200 | [diff] [blame] | 419 | private function f_imm_ass_verify_ul_tbf_ass(in GsmRrMessage rr_imm_ass, out PacketUlAssign ul_tbf_ass, template PacketUlAssign ul_ass := tr_PacketUlDynAssign) |
Vadim Yanitskiy | 2e213ae | 2020-05-06 22:26:17 +0700 | [diff] [blame] | 420 | runs on RAW_PCU_Test_CT { |
Pau Espin Pedrol | 8dd59fb | 2020-04-29 15:08:16 +0200 | [diff] [blame] | 421 | |
| 422 | /* Make sure we received an UL TBF Assignment */ |
Pau Espin Pedrol | 02c972d | 2020-05-13 15:56:16 +0200 | [diff] [blame] | 423 | if (match(rr_imm_ass, tr_IMM_TBF_ASS(dl := false, rest := tr_IaRestOctets_ULAss(ul_ass)))) { |
Pau Espin Pedrol | 8dd59fb | 2020-04-29 15:08:16 +0200 | [diff] [blame] | 424 | ul_tbf_ass := rr_imm_ass.payload.imm_ass.rest_octets.hh.pa.uldl.ass.ul; |
| 425 | log("Rx Uplink TBF assignment: ", ul_tbf_ass); |
| 426 | setverdict(pass); |
| 427 | } else { |
| 428 | setverdict(fail, "Failed to match UL TBF Assignment"); |
Vadim Yanitskiy | 2e213ae | 2020-05-06 22:26:17 +0700 | [diff] [blame] | 429 | f_shutdown(__BFILE__, __LINE__); |
Pau Espin Pedrol | 8dd59fb | 2020-04-29 15:08:16 +0200 | [diff] [blame] | 430 | } |
Pau Espin Pedrol | 8dd59fb | 2020-04-29 15:08:16 +0200 | [diff] [blame] | 431 | } |
| 432 | |
Vadim Yanitskiy | 5b649cc | 2020-05-06 16:35:38 +0700 | [diff] [blame] | 433 | private function f_imm_ass_verify_dl_tbf_ass(in GsmRrMessage rr_imm_ass, out PacketDlAssign dl_tbf_ass) |
Vadim Yanitskiy | 2e213ae | 2020-05-06 22:26:17 +0700 | [diff] [blame] | 434 | runs on RAW_PCU_Test_CT { |
Pau Espin Pedrol | 8dd59fb | 2020-04-29 15:08:16 +0200 | [diff] [blame] | 435 | |
| 436 | /* Make sure we received a DL TBF Assignment */ |
| 437 | if (match(rr_imm_ass, tr_IMM_TBF_ASS(dl := true, rest := tr_IaRestOctets_DLAss(?)))) { |
| 438 | dl_tbf_ass := rr_imm_ass.payload.imm_ass.rest_octets.hh.pa.uldl.ass.dl; |
| 439 | log("Rx Downlink TBF assignment: ", dl_tbf_ass); |
| 440 | setverdict(pass); |
| 441 | } else { |
| 442 | setverdict(fail, "Failed to match DL TBF Assignment"); |
Vadim Yanitskiy | 2e213ae | 2020-05-06 22:26:17 +0700 | [diff] [blame] | 443 | f_shutdown(__BFILE__, __LINE__); |
Pau Espin Pedrol | 8dd59fb | 2020-04-29 15:08:16 +0200 | [diff] [blame] | 444 | } |
Pau Espin Pedrol | 8dd59fb | 2020-04-29 15:08:16 +0200 | [diff] [blame] | 445 | } |
| 446 | |
| 447 | /* Enqueue DATA.ind (both TDMA frame and block numbers to be patched) */ |
Pau Espin Pedrol | 2456dad | 2020-04-30 20:22:38 +0200 | [diff] [blame] | 448 | function f_pcuif_tx_data_ind(octetstring data, int16_t lqual_cb := 0, uint32_t fn := 0) |
Pau Espin Pedrol | 8dd59fb | 2020-04-29 15:08:16 +0200 | [diff] [blame] | 449 | runs on RAW_PCU_Test_CT { |
| 450 | var template RAW_PCU_EventParam ev_param := {tdma_fn := ? }; |
| 451 | BTS.send(ts_PCUIF_DATA_IND(bts_nr := 0, trx_nr := 0, ts_nr := 7, block_nr := 0, |
| 452 | sapi := PCU_IF_SAPI_PDTCH, data := data, |
| 453 | fn := fn, arfcn := 871, lqual_cb := lqual_cb)); |
| 454 | if (fn != 0) { |
| 455 | ev_param := {tdma_fn := fn }; |
| 456 | } |
| 457 | BTS.receive(tr_RAW_PCU_EV(TDMA_EV_PDTCH_BLOCK_SENT, ev_param)); |
| 458 | } |
| 459 | |
| 460 | /* Enqueue RTS.req, expect DATA.req with UL ACK from the PCU */ |
| 461 | private function f_pcuif_rx_data_req(out PCUIF_Message pcu_msg) |
| 462 | runs on RAW_PCU_Test_CT { |
| 463 | BTS.send(ts_PCUIF_RTS_REQ(bts_nr := 0, trx_nr := 0, ts_nr := 7, |
| 464 | sapi := PCU_IF_SAPI_PDTCH, fn := 0, |
| 465 | arfcn := 871, block_nr := 0)); |
| 466 | BTS.receive(tr_PCUIF_DATA_REQ(bts_nr := 0, trx_nr := 0, ts_nr := 7, |
| 467 | sapi := PCU_IF_SAPI_PDTCH)) -> value pcu_msg; |
| 468 | } |
| 469 | |
| 470 | /* Expect an Immediate Assignment (paging) from PCU on PCUIF on specified sapi. */ |
| 471 | private function f_pcuif_rx_pch_imm_tbf_ass(out GsmRrMessage rr_imm_ass) |
| 472 | runs on RAW_PCU_Test_CT { |
| 473 | var PCUIF_Message pcu_msg; |
| 474 | var octetstring macblock; |
| 475 | BTS.receive(tr_PCUIF_DATA_REQ(bts_nr := 0, trx_nr := 0, ts_nr := 0, |
| 476 | sapi := PCU_IF_SAPI_PCH)) -> value pcu_msg; |
| 477 | /* First 3 bytes contain paging group: */ |
| 478 | macblock := substr(pcu_msg.u.data_req.data, 3, pcu_msg.u.data_req.len - 3); |
| 479 | rr_imm_ass := dec_GsmRrMessage(macblock); |
| 480 | if (not match(rr_imm_ass, tr_IMM_TBF_ASS())) { |
| 481 | setverdict(fail, "Failed to match Immediate Assignment: ", rr_imm_ass); |
Vadim Yanitskiy | 91f8a09 | 2020-05-06 21:41:05 +0700 | [diff] [blame] | 482 | f_shutdown(__BFILE__, __LINE__); |
Pau Espin Pedrol | 8dd59fb | 2020-04-29 15:08:16 +0200 | [diff] [blame] | 483 | } |
| 484 | f_pcuif_tx_data_cnf(pcu_msg); |
| 485 | } |
| 486 | |
| 487 | /* Expect a Paging Request Type 1 from PCU on PCUIF on specified sapi. */ |
| 488 | private function f_pcuif_rx_pch_pag_req1(template MobileIdentityV mi1 := ?, |
| 489 | template integer pag_group := ?) |
| 490 | runs on RAW_PCU_Test_CT return GsmRrMessage { |
| 491 | var GsmRrMessage rr_pag_req1; |
| 492 | var PCUIF_Message pcu_msg; |
| 493 | var octetstring imsi_suff_octstr; |
| 494 | var integer pag_group_rx; |
| 495 | var octetstring macblock; |
| 496 | |
| 497 | BTS.receive(tr_PCUIF_DATA_REQ(bts_nr := 0, trx_nr := 0, ts_nr := 0, |
| 498 | sapi := PCU_IF_SAPI_PCH)) -> value pcu_msg; |
| 499 | |
| 500 | /* First 3 bytes contain IMSI suffix to calculate paging group: */ |
| 501 | imsi_suff_octstr := substr(pcu_msg.u.data_req.data, 0, 3); |
| 502 | pag_group_rx := str2int(oct2char(imsi_suff_octstr[0])) * 100 + |
| 503 | str2int(oct2char(imsi_suff_octstr[1])) * 10 + |
| 504 | str2int(oct2char(imsi_suff_octstr[2])); |
| 505 | |
| 506 | /* Make sure we've got RR Paging Request Type 1 for a given MI */ |
| 507 | macblock := substr(pcu_msg.u.data_req.data, 3, pcu_msg.u.data_req.len - 3); |
| 508 | rr_pag_req1 := dec_GsmRrMessage(macblock); |
| 509 | if (not match(rr_pag_req1, tr_PAG_REQ1(tr_MI_LV(mi1)))) { |
| 510 | setverdict(fail, "Failed to match Paging Request Type 1: ", rr_pag_req1); |
Vadim Yanitskiy | 91f8a09 | 2020-05-06 21:41:05 +0700 | [diff] [blame] | 511 | f_shutdown(__BFILE__, __LINE__); |
Pau Espin Pedrol | 8dd59fb | 2020-04-29 15:08:16 +0200 | [diff] [blame] | 512 | } |
| 513 | |
| 514 | /* Make sure that received paging froup matches the expected one */ |
| 515 | if (not match(pag_group_rx, pag_group)) { |
| 516 | setverdict(fail, "Paging group", pag_group_rx, " does not match expected ", pag_group); |
Vadim Yanitskiy | 91f8a09 | 2020-05-06 21:41:05 +0700 | [diff] [blame] | 517 | f_shutdown(__BFILE__, __LINE__); |
Pau Espin Pedrol | 8dd59fb | 2020-04-29 15:08:16 +0200 | [diff] [blame] | 518 | } |
| 519 | |
| 520 | f_pcuif_tx_data_cnf(pcu_msg); |
| 521 | return rr_pag_req1; |
| 522 | } |
| 523 | |
Pau Espin Pedrol | 4cbb960 | 2020-05-14 19:21:49 +0200 | [diff] [blame] | 524 | /* Send one rlcmac UL block adding necessary extra padding at the end. |
| 525 | * returns length of extra padding added at the end, in octets. |
| 526 | * FIXME: Only supports CS-1 so far. |
| 527 | */ |
Pau Espin Pedrol | 8dd59fb | 2020-04-29 15:08:16 +0200 | [diff] [blame] | 528 | private function f_tx_rlcmac_ul_block(template (value) RlcmacUlBlock ul_data, int16_t lqual_cb := 0, uint32_t fn := 0) |
Pau Espin Pedrol | 4cbb960 | 2020-05-14 19:21:49 +0200 | [diff] [blame] | 529 | runs on RAW_PCU_Test_CT return integer { |
Pau Espin Pedrol | 8dd59fb | 2020-04-29 15:08:16 +0200 | [diff] [blame] | 530 | var octetstring data; |
Pau Espin Pedrol | 4cbb960 | 2020-05-14 19:21:49 +0200 | [diff] [blame] | 531 | var integer padding_len; |
Pau Espin Pedrol | 8dd59fb | 2020-04-29 15:08:16 +0200 | [diff] [blame] | 532 | /* Encode the payload of DATA.ind */ |
| 533 | data := enc_RlcmacUlBlock(valueof(ul_data)); |
Pau Espin Pedrol | 4cbb960 | 2020-05-14 19:21:49 +0200 | [diff] [blame] | 534 | padding_len := 23 - lengthof(data); |
Pau Espin Pedrol | 8dd59fb | 2020-04-29 15:08:16 +0200 | [diff] [blame] | 535 | data := f_pad_oct(data, 23, '00'O); /* CS-1 */ |
| 536 | |
| 537 | /* Enqueue DATA.ind (both TDMA frame and block numbers to be patched) */ |
| 538 | f_pcuif_tx_data_ind(data, lqual_cb, fn); |
Pau Espin Pedrol | 4cbb960 | 2020-05-14 19:21:49 +0200 | [diff] [blame] | 539 | return padding_len; |
Pau Espin Pedrol | 8dd59fb | 2020-04-29 15:08:16 +0200 | [diff] [blame] | 540 | } |
| 541 | |
Pau Espin Pedrol | 4cbb960 | 2020-05-14 19:21:49 +0200 | [diff] [blame] | 542 | private function f_tx_rlcmac_ul_n_blocks(uint5_t tfi, inout uint14_t bsn, integer num_blocks := 1, template (omit) GprsTlli tlli := omit) |
| 543 | runs on RAW_PCU_Test_CT return octetstring { |
| 544 | var octetstring total_payload := ''O; |
Pau Espin Pedrol | 8dd59fb | 2020-04-29 15:08:16 +0200 | [diff] [blame] | 545 | var template (value) RlcmacUlBlock ul_data := t_RLCMAC_UL_DATA( |
Pau Espin Pedrol | 02c972d | 2020-05-13 15:56:16 +0200 | [diff] [blame] | 546 | tfi := tfi, |
Pau Espin Pedrol | 5feace6 | 2020-05-14 16:44:18 +0200 | [diff] [blame] | 547 | cv := 15, /* num UL blocks to be sent (to be overridden in loop) */ |
Pau Espin Pedrol | 4cbb960 | 2020-05-14 19:21:49 +0200 | [diff] [blame] | 548 | bsn := 0, /* To be generated in loop */ |
Pau Espin Pedrol | 8dd59fb | 2020-04-29 15:08:16 +0200 | [diff] [blame] | 549 | blocks := { /* To be generated in loop */ }); |
| 550 | |
Pau Espin Pedrol | 4aac3d0 | 2020-05-13 15:13:49 +0200 | [diff] [blame] | 551 | if (not istemplatekind(tlli, "omit")) { |
| 552 | ul_data.data.mac_hdr.tlli_ind := true; |
| 553 | ul_data.data.tlli := tlli; |
| 554 | } |
Pau Espin Pedrol | 8dd59fb | 2020-04-29 15:08:16 +0200 | [diff] [blame] | 555 | |
| 556 | for (var integer i := 0; i < num_blocks; i := i + 1) { |
Pau Espin Pedrol | 4cbb960 | 2020-05-14 19:21:49 +0200 | [diff] [blame] | 557 | var integer padding_len; |
| 558 | var octetstring payload := f_rnd_octstring(10); |
Pau Espin Pedrol | 8dd59fb | 2020-04-29 15:08:16 +0200 | [diff] [blame] | 559 | /* Prepare a new UL block (CV, random payload) */ |
Pau Espin Pedrol | 5feace6 | 2020-05-14 16:44:18 +0200 | [diff] [blame] | 560 | var integer cv := num_blocks - i - 1; |
| 561 | if (cv > g_bs_cv_max) { |
| 562 | cv := 15; |
| 563 | } |
| 564 | ul_data.data.mac_hdr.countdown := cv; |
Pau Espin Pedrol | 4cbb960 | 2020-05-14 19:21:49 +0200 | [diff] [blame] | 565 | ul_data.data.mac_hdr.bsn := bsn + i; |
| 566 | ul_data.data.blocks := { valueof(t_RLCMAC_LLCBLOCK(payload)) }; |
| 567 | padding_len := f_tx_rlcmac_ul_block(ul_data); |
| 568 | total_payload := total_payload & payload & f_pad_oct(''O, padding_len, '00'O); |
Pau Espin Pedrol | 8dd59fb | 2020-04-29 15:08:16 +0200 | [diff] [blame] | 569 | } |
Pau Espin Pedrol | 4cbb960 | 2020-05-14 19:21:49 +0200 | [diff] [blame] | 570 | bsn := valueof(ul_data.data.mac_hdr.bsn) + 1; /* update bsn to point to next one */ |
| 571 | return total_payload; |
Pau Espin Pedrol | 8dd59fb | 2020-04-29 15:08:16 +0200 | [diff] [blame] | 572 | } |
| 573 | |
| 574 | private function f_rx_rlcmac_dl_block(out RlcmacDlBlock dl_block, out uint32_t dl_fn, template (present) CodingScheme exp_cs_mcs := ?) |
| 575 | runs on RAW_PCU_Test_CT { |
| 576 | var PCUIF_Message pcu_msg; |
| 577 | f_pcuif_rx_data_req(pcu_msg); |
| 578 | dl_block := dec_RlcmacDlBlock(pcu_msg.u.data_req.data); |
| 579 | dl_fn := pcu_msg.u.data_req.fn; |
| 580 | |
| 581 | var integer len := lengthof(pcu_msg.u.data_req.data); |
| 582 | var CodingScheme cs_mcs := f_rlcmac_block_len2cs_mcs(len) |
| 583 | if (not match(f_rlcmac_block_len2cs_mcs(len), exp_cs_mcs)) { |
| 584 | setverdict(fail, "Failed to match Coding Scheme exp ", exp_cs_mcs, " vs ", cs_mcs, " (", len, ")"); |
Vadim Yanitskiy | 91f8a09 | 2020-05-06 21:41:05 +0700 | [diff] [blame] | 585 | f_shutdown(__BFILE__, __LINE__); |
Pau Espin Pedrol | 8dd59fb | 2020-04-29 15:08:16 +0200 | [diff] [blame] | 586 | } |
| 587 | } |
| 588 | |
| 589 | private function f_rx_rlcmac_dl_block_exp_ack_nack(out RlcmacDlBlock dl_block, out uint32_t poll_fn) |
| 590 | runs on RAW_PCU_Test_CT { |
| 591 | var uint32_t dl_fn; |
| 592 | |
| 593 | f_rx_rlcmac_dl_block(dl_block, dl_fn); |
| 594 | if (not match(dl_block, tr_RLCMAC_UL_ACK_NACK(ul_tfi := ?, tlli := ?))) { |
| 595 | setverdict(fail, "Failed to match Packet Uplink ACK / NACK"); |
Vadim Yanitskiy | 91f8a09 | 2020-05-06 21:41:05 +0700 | [diff] [blame] | 596 | f_shutdown(__BFILE__, __LINE__); |
Pau Espin Pedrol | 8dd59fb | 2020-04-29 15:08:16 +0200 | [diff] [blame] | 597 | } |
| 598 | |
Vadim Yanitskiy | 2742bcd | 2020-05-10 12:45:18 +0700 | [diff] [blame] | 599 | poll_fn := f_rrbp_ack_fn(dl_fn, dl_block.ctrl.mac_hdr.rrbp); |
Pau Espin Pedrol | 8dd59fb | 2020-04-29 15:08:16 +0200 | [diff] [blame] | 600 | } |
| 601 | |
| 602 | private function f_rx_rlcmac_dl_block_exp_dummy(out RlcmacDlBlock dl_block) |
| 603 | runs on RAW_PCU_Test_CT { |
| 604 | var uint32_t dl_fn; |
| 605 | |
| 606 | f_rx_rlcmac_dl_block(dl_block, dl_fn); |
| 607 | if (not match(dl_block, tr_RLCMAC_DUMMY_CTRL())) { |
| 608 | setverdict(fail, "Failed to match Packet DUMMY DL"); |
Vadim Yanitskiy | 91f8a09 | 2020-05-06 21:41:05 +0700 | [diff] [blame] | 609 | f_shutdown(__BFILE__, __LINE__); |
Pau Espin Pedrol | 8dd59fb | 2020-04-29 15:08:16 +0200 | [diff] [blame] | 610 | } |
| 611 | } |
| 612 | |
| 613 | private function f_rx_rlcmac_dl_block_exp_pkt_ass(out RlcmacDlBlock dl_block, out uint32_t poll_fn) |
| 614 | runs on RAW_PCU_Test_CT { |
| 615 | var uint32_t dl_fn; |
| 616 | |
| 617 | f_rx_rlcmac_dl_block(dl_block, dl_fn); |
| 618 | if (not match(dl_block, tr_RLCMAC_DL_PACKET_ASS())) { |
| 619 | setverdict(fail, "Failed to match Packet Downlink Assignment"); |
Vadim Yanitskiy | 91f8a09 | 2020-05-06 21:41:05 +0700 | [diff] [blame] | 620 | f_shutdown(__BFILE__, __LINE__); |
Pau Espin Pedrol | 8dd59fb | 2020-04-29 15:08:16 +0200 | [diff] [blame] | 621 | } |
| 622 | |
Vadim Yanitskiy | 2742bcd | 2020-05-10 12:45:18 +0700 | [diff] [blame] | 623 | poll_fn := f_rrbp_ack_fn(dl_fn, dl_block.ctrl.mac_hdr.rrbp); |
Pau Espin Pedrol | 8dd59fb | 2020-04-29 15:08:16 +0200 | [diff] [blame] | 624 | } |
| 625 | |
| 626 | private function f_rx_rlcmac_dl_block_exp_pkt_ul_ass(out RlcmacDlBlock dl_block, out uint32_t poll_fn) |
| 627 | runs on RAW_PCU_Test_CT { |
| 628 | var uint32_t dl_fn; |
| 629 | |
| 630 | f_rx_rlcmac_dl_block(dl_block, dl_fn); |
| 631 | if (not match(dl_block, tr_RLCMAC_UL_PACKET_ASS())) { |
| 632 | setverdict(fail, "Failed to match Packet Uplink Assignment"); |
Vadim Yanitskiy | 91f8a09 | 2020-05-06 21:41:05 +0700 | [diff] [blame] | 633 | f_shutdown(__BFILE__, __LINE__); |
Pau Espin Pedrol | 8dd59fb | 2020-04-29 15:08:16 +0200 | [diff] [blame] | 634 | } |
| 635 | |
Vadim Yanitskiy | 2742bcd | 2020-05-10 12:45:18 +0700 | [diff] [blame] | 636 | poll_fn := f_rrbp_ack_fn(dl_fn, dl_block.ctrl.mac_hdr.rrbp); |
Pau Espin Pedrol | 8dd59fb | 2020-04-29 15:08:16 +0200 | [diff] [blame] | 637 | } |
| 638 | |
Pau Espin Pedrol | 02c972d | 2020-05-13 15:56:16 +0200 | [diff] [blame] | 639 | private function f_rx_rlcmac_dl_block_exp_pkt_dl_ass(out RlcmacDlBlock dl_block, out uint32_t poll_fn) |
| 640 | runs on RAW_PCU_Test_CT { |
| 641 | var uint32_t dl_fn; |
| 642 | |
| 643 | f_rx_rlcmac_dl_block(dl_block, dl_fn); |
| 644 | if (not match(dl_block, tr_RLCMAC_DL_PACKET_ASS())) { |
| 645 | setverdict(fail, "Failed to match Packet Downlink Assignment"); |
| 646 | f_shutdown(__BFILE__, __LINE__); |
| 647 | } |
| 648 | |
| 649 | poll_fn := f_rrbp_ack_fn(dl_fn, dl_block.ctrl.mac_hdr.rrbp); |
| 650 | } |
| 651 | |
Pau Espin Pedrol | 8dd59fb | 2020-04-29 15:08:16 +0200 | [diff] [blame] | 652 | |
| 653 | private function f_rx_rlcmac_dl_block_exp_pkt_pag_req(out RlcmacDlBlock dl_block) |
| 654 | runs on RAW_PCU_Test_CT { |
| 655 | var uint32_t dl_fn; |
| 656 | |
| 657 | f_rx_rlcmac_dl_block(dl_block, dl_fn); |
| 658 | if (not match(dl_block, tr_RLCMAC_PACKET_PAG_REQ())) { |
| 659 | setverdict(fail, "Failed to match Packet Paging Request: ", dl_block, " vs ", tr_RLCMAC_PACKET_PAG_REQ()); |
Vadim Yanitskiy | 91f8a09 | 2020-05-06 21:41:05 +0700 | [diff] [blame] | 660 | f_shutdown(__BFILE__, __LINE__); |
Pau Espin Pedrol | 8dd59fb | 2020-04-29 15:08:16 +0200 | [diff] [blame] | 661 | } |
| 662 | } |
| 663 | |
Vadim Yanitskiy | b6733a6 | 2020-05-10 14:39:00 +0700 | [diff] [blame] | 664 | /* This function does what could probably be done with templates */ |
| 665 | private function f_rlcmac_dl_block_verify_data_gprs(in RlcmacDlDataBlock data_block, |
| 666 | template (present) octetstring data := ?, |
Vadim Yanitskiy | 91f8a09 | 2020-05-06 21:41:05 +0700 | [diff] [blame] | 667 | template (present) uint7_t exp_bsn := ?, |
| 668 | template (present) CodingScheme exp_cs := ?) |
| 669 | runs on RAW_PCU_Test_CT { |
Vadim Yanitskiy | b6733a6 | 2020-05-10 14:39:00 +0700 | [diff] [blame] | 670 | if (not match(data_block.mac_hdr.hdr_ext.bsn, exp_bsn)) { |
Pau Espin Pedrol | 8dd59fb | 2020-04-29 15:08:16 +0200 | [diff] [blame] | 671 | setverdict(fail, "DL block BSN doesn't match: ", |
Vadim Yanitskiy | b6733a6 | 2020-05-10 14:39:00 +0700 | [diff] [blame] | 672 | data_block.mac_hdr.hdr_ext.bsn, " vs exp ", exp_bsn); |
Pau Espin Pedrol | 8dd59fb | 2020-04-29 15:08:16 +0200 | [diff] [blame] | 673 | } |
| 674 | |
Vadim Yanitskiy | b6733a6 | 2020-05-10 14:39:00 +0700 | [diff] [blame] | 675 | if (lengthof(data_block.blocks) < 1) { |
| 676 | setverdict(fail, "DL block has no LLC payload: ", data_block); |
Vadim Yanitskiy | 91f8a09 | 2020-05-06 21:41:05 +0700 | [diff] [blame] | 677 | f_shutdown(__BFILE__, __LINE__); |
Pau Espin Pedrol | 8dd59fb | 2020-04-29 15:08:16 +0200 | [diff] [blame] | 678 | } |
| 679 | |
Vadim Yanitskiy | b6733a6 | 2020-05-10 14:39:00 +0700 | [diff] [blame] | 680 | if (not match(data_block.blocks[0].payload, data)) { |
| 681 | setverdict(fail, "Failed to match content of LLC payload in DL Block: ", |
| 682 | data_block.blocks[0].payload, " vs ", data); |
Vadim Yanitskiy | 91f8a09 | 2020-05-06 21:41:05 +0700 | [diff] [blame] | 683 | f_shutdown(__BFILE__, __LINE__); |
Pau Espin Pedrol | 8dd59fb | 2020-04-29 15:08:16 +0200 | [diff] [blame] | 684 | } |
| 685 | |
| 686 | /* Check next data blocks contain dummy frames */ |
Vadim Yanitskiy | b6733a6 | 2020-05-10 14:39:00 +0700 | [diff] [blame] | 687 | if (lengthof(data_block.blocks) > 1 and substr(data_block.blocks[1].payload, 0, 3) != '43C001'O) { |
| 688 | setverdict(fail, "Second data payload is not a dummy frame: ", |
| 689 | data_block.blocks[1].payload); |
Vadim Yanitskiy | 91f8a09 | 2020-05-06 21:41:05 +0700 | [diff] [blame] | 690 | f_shutdown(__BFILE__, __LINE__); |
Pau Espin Pedrol | 8dd59fb | 2020-04-29 15:08:16 +0200 | [diff] [blame] | 691 | } |
| 692 | |
| 693 | /* TODO: check exp_cs */ |
| 694 | } |
| 695 | |
Vadim Yanitskiy | b6733a6 | 2020-05-10 14:39:00 +0700 | [diff] [blame] | 696 | /* This function does what could probably be done with templates */ |
| 697 | private function f_rlcmac_dl_block_verify_data_egprs(in RlcmacDlEgprsDataBlock data_block, |
| 698 | template (present) octetstring data := ?, |
Vadim Yanitskiy | 91f8a09 | 2020-05-06 21:41:05 +0700 | [diff] [blame] | 699 | template (present) uint14_t exp_bsn := ?, |
| 700 | template (present) CodingScheme exp_cs := ?) |
| 701 | runs on RAW_PCU_Test_CT { |
Vadim Yanitskiy | b6733a6 | 2020-05-10 14:39:00 +0700 | [diff] [blame] | 702 | if (not match(data_block.mac_hdr.bsn1, exp_bsn)) { |
Pau Espin Pedrol | 8dd59fb | 2020-04-29 15:08:16 +0200 | [diff] [blame] | 703 | setverdict(fail, "DL block BSN doesn't match: ", |
Vadim Yanitskiy | b6733a6 | 2020-05-10 14:39:00 +0700 | [diff] [blame] | 704 | data_block.mac_hdr.bsn1, " vs exp ", exp_bsn); |
Pau Espin Pedrol | 8dd59fb | 2020-04-29 15:08:16 +0200 | [diff] [blame] | 705 | } |
| 706 | |
Vadim Yanitskiy | b6733a6 | 2020-05-10 14:39:00 +0700 | [diff] [blame] | 707 | if (lengthof(data_block.blocks) < 1) { |
| 708 | setverdict(fail, "DL block has no LLC payload: ", data_block); |
Vadim Yanitskiy | 91f8a09 | 2020-05-06 21:41:05 +0700 | [diff] [blame] | 709 | f_shutdown(__BFILE__, __LINE__); |
Pau Espin Pedrol | 8dd59fb | 2020-04-29 15:08:16 +0200 | [diff] [blame] | 710 | } |
| 711 | |
Vadim Yanitskiy | b6733a6 | 2020-05-10 14:39:00 +0700 | [diff] [blame] | 712 | if (not match(data_block.blocks[0].payload, data)) { |
| 713 | setverdict(fail, "Failed to match content of LLC payload in DL Block: ", |
| 714 | data_block.blocks[0].payload, " vs ", data); |
Vadim Yanitskiy | 91f8a09 | 2020-05-06 21:41:05 +0700 | [diff] [blame] | 715 | f_shutdown(__BFILE__, __LINE__); |
Pau Espin Pedrol | 8dd59fb | 2020-04-29 15:08:16 +0200 | [diff] [blame] | 716 | } |
| 717 | |
| 718 | /* Check next data blocks contain dummy frames */ |
Vadim Yanitskiy | b6733a6 | 2020-05-10 14:39:00 +0700 | [diff] [blame] | 719 | if (lengthof(data_block.blocks) > 1 and substr(data_block.blocks[1].payload, 0, 3) != '43C001'O) { |
| 720 | setverdict(fail, "Second data payload is not a dummy frame: ", |
| 721 | data_block.blocks[1].payload); |
Vadim Yanitskiy | 91f8a09 | 2020-05-06 21:41:05 +0700 | [diff] [blame] | 722 | f_shutdown(__BFILE__, __LINE__); |
Pau Espin Pedrol | 8dd59fb | 2020-04-29 15:08:16 +0200 | [diff] [blame] | 723 | } |
| 724 | |
| 725 | /* TODO: Check exp_cs. In the case of EGPRS, first check mac_hdr.header_type and then decode CPS = exp_cs based on mac_hdr.header_type. |
| 726 | See wireshark's egprs_Header_type1_coding_puncturing_scheme_to_mcs. */ |
| 727 | } |
| 728 | |
Vadim Yanitskiy | b6733a6 | 2020-05-10 14:39:00 +0700 | [diff] [blame] | 729 | /* High level (task specific) helper for receiving and matching GPRS/EGPRS data blocks */ |
| 730 | private function f_rx_rlcmac_dl_block_exp_data(out RlcmacDlBlock dl_block, out uint32_t dl_fn, |
| 731 | template (present) octetstring data := ?, |
Vadim Yanitskiy | 91f8a09 | 2020-05-06 21:41:05 +0700 | [diff] [blame] | 732 | template (present) uint7_t exp_bsn := ?, |
| 733 | template (present) CodingScheme exp_cs := ?) |
Pau Espin Pedrol | 8dd59fb | 2020-04-29 15:08:16 +0200 | [diff] [blame] | 734 | runs on RAW_PCU_Test_CT { |
Vadim Yanitskiy | b6733a6 | 2020-05-10 14:39:00 +0700 | [diff] [blame] | 735 | /* FIXME: ideally we should use an alt statement with timeout here, rather than |
| 736 | * having +100500 layers of abstraction. This would facilitate developing the |
| 737 | * multi-TBF/-TRX/-BTS tests, where you cannot expect that the first received |
| 738 | * block is exactly what you need. */ |
Pau Espin Pedrol | 8dd59fb | 2020-04-29 15:08:16 +0200 | [diff] [blame] | 739 | f_rx_rlcmac_dl_block(dl_block, dl_fn); |
Vadim Yanitskiy | b6733a6 | 2020-05-10 14:39:00 +0700 | [diff] [blame] | 740 | |
| 741 | /* Make sure it's either GPRS or EGPRS data block */ |
| 742 | if (not match(dl_block, tr_RLCMAC_DATA)) { |
| 743 | setverdict(fail, "Failed to match DL DATA: ", dl_block, " vs ", tr_RLCMAC_DATA); |
| 744 | f_shutdown(__BFILE__, __LINE__); |
Pau Espin Pedrol | 8dd59fb | 2020-04-29 15:08:16 +0200 | [diff] [blame] | 745 | } |
| 746 | |
Vadim Yanitskiy | b6733a6 | 2020-05-10 14:39:00 +0700 | [diff] [blame] | 747 | if (ischosen(dl_block.data_egprs)) { |
| 748 | f_rlcmac_dl_block_verify_data_egprs(dl_block.data_egprs, data, exp_bsn, exp_cs); |
| 749 | } else if (ischosen(dl_block.data)) { |
| 750 | f_rlcmac_dl_block_verify_data_gprs(dl_block.data, data, exp_bsn, exp_cs); |
Pau Espin Pedrol | 8dd59fb | 2020-04-29 15:08:16 +0200 | [diff] [blame] | 751 | } else { |
Vadim Yanitskiy | b6733a6 | 2020-05-10 14:39:00 +0700 | [diff] [blame] | 752 | /* Should not happen, but the caller may theoretically give us a template for CTRL */ |
| 753 | setverdict(fail, "DL block is neither GPRS nor EGPRS data block: ", dl_block); |
| 754 | f_shutdown(__BFILE__, __LINE__); |
Pau Espin Pedrol | 8dd59fb | 2020-04-29 15:08:16 +0200 | [diff] [blame] | 755 | } |
| 756 | } |
| 757 | |
Vadim Yanitskiy | b6733a6 | 2020-05-10 14:39:00 +0700 | [diff] [blame] | 758 | private function f_dl_block_ack_fn(in RlcmacDlBlock dl_block, uint32_t dl_fn) |
| 759 | runs on RAW_PCU_Test_CT return uint32_t { |
| 760 | var boolean rrbp_valid; |
| 761 | var MacRrbp rrbp; |
| 762 | |
| 763 | /* The argument must be either a GPRS or EGPRS data block */ |
| 764 | if (ischosen(dl_block.data_egprs)) { |
| 765 | rrbp_valid := true; /* always valid */ |
| 766 | rrbp := dl_block.data_egprs.mac_hdr.rrbp; |
| 767 | } else if (ischosen(dl_block.data)) { |
| 768 | rrbp_valid := dl_block.data.mac_hdr.mac_hdr.rrbp_valid; |
| 769 | rrbp := dl_block.data.mac_hdr.mac_hdr.rrbp; |
| 770 | } else { |
Pau Espin Pedrol | 1832cd8 | 2020-05-13 16:42:24 +0200 | [diff] [blame] | 771 | rrbp_valid := dl_block.ctrl.mac_hdr.rrbp_valid; |
| 772 | rrbp := dl_block.ctrl.mac_hdr.rrbp; |
Vadim Yanitskiy | b6733a6 | 2020-05-10 14:39:00 +0700 | [diff] [blame] | 773 | } |
| 774 | |
| 775 | /* Make sure that the given block really needs to be ACKnowledged */ |
| 776 | if (not rrbp_valid) { |
| 777 | setverdict(fail, "DL block shall not be ACKnowledged, field RRBP is not valid"); |
| 778 | f_shutdown(__BFILE__, __LINE__); |
| 779 | } |
| 780 | |
| 781 | return f_rrbp_ack_fn(dl_fn, rrbp); |
| 782 | } |
| 783 | |
Pau Espin Pedrol | 8dd59fb | 2020-04-29 15:08:16 +0200 | [diff] [blame] | 784 | testcase TC_pcuif_suspend() runs on RAW_PCU_Test_CT { |
| 785 | var octetstring ra_id := enc_RoutingAreaIdentification(mp_gb_cfg.cell_id.ra_id); |
| 786 | var GprsTlli tlli := 'FFFFFFFF'O; |
| 787 | timer T; |
| 788 | |
| 789 | /* Initialize NS/BSSGP side */ |
| 790 | f_init_bssgp(); |
| 791 | |
| 792 | /* Initialize the PCU interface abstraction */ |
| 793 | f_init_raw(testcasename()); |
| 794 | |
| 795 | /* Establish BSSGP connection to the PCU */ |
| 796 | f_bssgp_establish(); |
| 797 | |
| 798 | BTS.send(ts_PCUIF_SUSP_REQ(0, tlli, ra_id, 0)); |
| 799 | |
| 800 | T.start(2.0); |
| 801 | alt { |
| 802 | [] BSSGP_SIG[0].receive(tr_BSSGP_SUSPEND(tlli, mp_gb_cfg.cell_id.ra_id)) { |
| 803 | setverdict(pass); |
| 804 | } |
| 805 | [] T.timeout { |
| 806 | setverdict(fail, "Timeout waiting for BSSGP SUSPEND"); |
| 807 | } |
| 808 | } |
Vadim Yanitskiy | 91f8a09 | 2020-05-06 21:41:05 +0700 | [diff] [blame] | 809 | |
| 810 | f_shutdown(__BFILE__, __LINE__, final := true); |
Pau Espin Pedrol | 8dd59fb | 2020-04-29 15:08:16 +0200 | [diff] [blame] | 811 | } |
| 812 | |
| 813 | /* Test of correct Timing Advance at the time of TBF establishment |
| 814 | * (derived from timing offset of the Access Burst). */ |
| 815 | testcase TC_ta_rach_imm_ass() runs on RAW_PCU_Test_CT { |
| 816 | var GsmRrMessage rr_msg; |
| 817 | var boolean ok; |
| 818 | |
| 819 | /* Initialize the PCU interface abstraction */ |
| 820 | f_init_raw(testcasename()); |
| 821 | |
| 822 | /* We cannot send too many TBF requests in a short time because |
| 823 | * at some point the PCU will fail to allocate a new TBF. */ |
| 824 | for (var TimingAdvance ta := 0; ta < 64; ta := ta + 16) { |
| 825 | /* Establish an Uplink TBF (send RACH.ind with current TA) */ |
| 826 | ok := f_establish_tbf(rr_msg, bts_nr := 0, ta := ta); |
| 827 | if (not ok) { |
| 828 | setverdict(fail, "Failed to establish an Uplink TBF"); |
Vadim Yanitskiy | 91f8a09 | 2020-05-06 21:41:05 +0700 | [diff] [blame] | 829 | break; |
Pau Espin Pedrol | 8dd59fb | 2020-04-29 15:08:16 +0200 | [diff] [blame] | 830 | } |
| 831 | |
| 832 | /* Make sure Timing Advance IE matches out expectations */ |
Vadim Yanitskiy | 8685b38 | 2020-05-06 16:53:26 +0700 | [diff] [blame] | 833 | if (rr_msg.payload.imm_ass.timing_advance != ta) { |
| 834 | setverdict(fail, "Timing Advance mismatch: ", |
| 835 | rr_msg.payload.imm_ass.timing_advance, |
| 836 | " vs expected ", ta); |
Vadim Yanitskiy | 91f8a09 | 2020-05-06 21:41:05 +0700 | [diff] [blame] | 837 | break; |
Pau Espin Pedrol | 8dd59fb | 2020-04-29 15:08:16 +0200 | [diff] [blame] | 838 | } |
| 839 | } |
Vadim Yanitskiy | 91f8a09 | 2020-05-06 21:41:05 +0700 | [diff] [blame] | 840 | |
| 841 | f_shutdown(__BFILE__, __LINE__, final := true); |
Pau Espin Pedrol | 8dd59fb | 2020-04-29 15:08:16 +0200 | [diff] [blame] | 842 | } |
| 843 | |
| 844 | /* Verify Timing Advance value(s) indicated during the packet Downlink assignment |
| 845 | * procedure as per 3GPP TS 44.018, section 3.5.3. There seems to be a bug in the |
| 846 | * IUT that causes it to send an unreasonable Timing Advance value > 0 despite |
| 847 | * no active TBF exists at the moment of establishment (idle mode). */ |
| 848 | testcase TC_ta_idle_dl_tbf_ass() runs on RAW_PCU_Test_CT { |
| 849 | var OCT4 tlli := f_rnd_octstring(4); |
| 850 | var GsmRrMessage rr_imm_ass; |
| 851 | |
| 852 | /* Initialize NS/BSSGP side */ |
| 853 | f_init_bssgp(); |
| 854 | |
| 855 | /* Initialize the PCU interface abstraction */ |
| 856 | f_init_raw(testcasename()); |
| 857 | |
| 858 | /* Establish BSSGP connection to the PCU */ |
| 859 | f_bssgp_establish(); |
| 860 | f_bssgp_client_llgmm_assign('FFFFFFFF'O, tlli); |
| 861 | |
| 862 | /* SGSN sends some DL data, PCU will initiate Packet Downlink |
| 863 | * Assignment on CCCH (PCH). We don't care about the payload. */ |
| 864 | BSSGP[0].send(ts_BSSGP_DL_UD(tlli, f_rnd_octstring(10))); |
| 865 | f_pcuif_rx_pch_imm_tbf_ass(rr_imm_ass); // TODO: match by TLLI! |
| 866 | |
| 867 | /* Make sure that Timing Advance is 0 (the actual value is not known yet). |
| 868 | * As per 3GPP S 44.018, section 3.5.3.1.2, the network *shall* initiate |
| 869 | * the procedures defined in 3GPP TS 44.060 or use the polling mechanism. */ |
| 870 | if (not match(rr_imm_ass, tr_IMM_TBF_ASS(ta := 0))) { |
| 871 | setverdict(fail, "Timing Advance value doesn't match"); |
Pau Espin Pedrol | 8dd59fb | 2020-04-29 15:08:16 +0200 | [diff] [blame] | 872 | } |
Vadim Yanitskiy | 91f8a09 | 2020-05-06 21:41:05 +0700 | [diff] [blame] | 873 | |
| 874 | f_shutdown(__BFILE__, __LINE__, final := true); |
Pau Espin Pedrol | 8dd59fb | 2020-04-29 15:08:16 +0200 | [diff] [blame] | 875 | } |
| 876 | |
| 877 | /* Verify that the PCU generates valid PTCCH/D messages |
| 878 | * while neither Uplink nor Downlink TBF is established. */ |
| 879 | testcase TC_ta_ptcch_idle() runs on RAW_PCU_Test_CT { |
| 880 | var PTCCHDownlinkMsg ptcch_msg; |
| 881 | var PCUIF_Message pcu_msg; |
| 882 | timer T; |
| 883 | |
| 884 | /* Initialize the PCU interface abstraction */ |
| 885 | f_init_raw(testcasename()); |
| 886 | |
| 887 | /* Sent an RTS.req for PTCCH/D */ |
| 888 | BTS.send(ts_PCUIF_RTS_REQ(bts_nr := 0, trx_nr := 0, ts_nr := 7, |
| 889 | sapi := PCU_IF_SAPI_PTCCH, fn := 0, |
| 890 | arfcn := 871, block_nr := 0)); |
| 891 | T.start(5.0); |
| 892 | alt { |
| 893 | [] BTS.receive(tr_PCUIF_DATA_REQ(bts_nr := 0, trx_nr := 0, ts_nr := 7, |
| 894 | sapi := PCU_IF_SAPI_PTCCH)) -> value pcu_msg { |
| 895 | log("Rx DATA.req message: ", pcu_msg); |
| 896 | setverdict(pass); |
| 897 | } |
| 898 | [] BTS.receive(PCUIF_Message:?) { repeat; } |
| 899 | [] T.timeout { |
| 900 | setverdict(fail, "Timeout waiting for a PTCCH/D block"); |
Vadim Yanitskiy | 91f8a09 | 2020-05-06 21:41:05 +0700 | [diff] [blame] | 901 | f_shutdown(__BFILE__, __LINE__); |
Pau Espin Pedrol | 8dd59fb | 2020-04-29 15:08:16 +0200 | [diff] [blame] | 902 | } |
| 903 | } |
| 904 | |
| 905 | ptcch_msg := dec_PTCCHDownlinkMsg(pcu_msg.u.data_req.data); |
| 906 | log("Decoded PTCCH/D message: ", ptcch_msg); |
| 907 | |
| 908 | /* Make sure the message is encoded correctly |
| 909 | * TODO: do we expect all TA values to be equal '1111111'B? */ |
| 910 | if (not match(ptcch_msg, tr_PTCCHDownlinkMsg)) { |
| 911 | setverdict(fail, "Malformed PTCCH/D message"); |
Pau Espin Pedrol | 8dd59fb | 2020-04-29 15:08:16 +0200 | [diff] [blame] | 912 | } |
Vadim Yanitskiy | 91f8a09 | 2020-05-06 21:41:05 +0700 | [diff] [blame] | 913 | |
| 914 | f_shutdown(__BFILE__, __LINE__, final := true); |
Pau Espin Pedrol | 8dd59fb | 2020-04-29 15:08:16 +0200 | [diff] [blame] | 915 | } |
| 916 | |
| 917 | /* Test of correct Timing Advance during an active Uplink TBF. |
| 918 | * |
| 919 | * Unlike the circuit-switched domain, Uplink transmissions on PDCH time-slots |
| 920 | * are not continuous and there can be long time gaps between them. This happens |
| 921 | * due to a bursty nature of packet data. The actual Timing Advance of a MS may |
| 922 | * significantly change between such rare Uplink transmissions, so GPRS introduces |
| 923 | * additional mechanisms to control Timing Advance, and thus reduce interference |
| 924 | * between neighboring TDMA time-slots. |
| 925 | * |
| 926 | * At the moment of Uplink TBF establishment, initial Timing Advance is measured |
| 927 | * from ToA (Timing of Arrival) of an Access Burst. This is covered by another |
| 928 | * test case - TC_ta_rach_imm_ass. In response to that Access Burst the network |
| 929 | * sends Immediate Assignment on AGCH, which _may_ contain Timing Advance Index |
| 930 | * among with the initial Timing Advance value. And here PTCCH comes to play. |
| 931 | * |
| 932 | * PTCCH is a unidirectional channel on which the network can instruct a sub-set |
| 933 | * of 16 MS (whether TBFs are active or not) to adjust their Timing Advance |
| 934 | * continuously. To ensure continuous measurements of the signal propagation |
| 935 | * delay, the MSs shall transmit Access Bursts on Uplink (PTCCH/U) on sub-slots |
| 936 | * defined by an assigned Timing Advance Index (see 3GPP TS 45.002). |
| 937 | * |
| 938 | * The purpose of this test case is to verify the assignment of Timing Advance |
| 939 | * Index, and the process of Timing Advance notification on PTCCH/D. The MTC |
| 940 | * first establishes several Uplink TBFs, but does not transmit any Uplink |
| 941 | * blocks on them. During 4 TDMA multi-frame periods the MTC is sending RACH |
| 942 | * indications to the PCU, checking the correctness of two received PTCCH/D |
| 943 | * messages (period of PTCCH/D is two multi-frames). |
| 944 | */ |
| 945 | |
| 946 | /* List of ToA values for Access Bursts to be sent on PTCCH/U, |
| 947 | * each ToA (Timing of Arrival) value is in units of 1/4 of |
| 948 | * a symbol (i.e. 1 symbol is 4 QTA units). */ |
| 949 | type record length(16) of int16_t PTCCH_TAI_ToA_MAP; |
| 950 | const PTCCH_TAI_ToA_MAP ptcch_toa_map_def := { |
| 951 | 0, 0, 0, 0, |
| 952 | 0, 0, 0, 0, |
| 953 | 0, 0, 0, 0, |
| 954 | 0, 0, 0, 0 |
| 955 | }; |
| 956 | |
| 957 | private altstep as_ta_ptcch(uint8_t bts_nr := 0, uint8_t trx_nr := 0, uint8_t ts_nr := 7, |
| 958 | in PTCCH_TAI_ToA_MAP toa_map := ptcch_toa_map_def) |
| 959 | runs on RAW_PCU_Test_CT { |
| 960 | var RAW_PCU_Event event; |
| 961 | var integer ss; |
| 962 | |
| 963 | /* Send Access Bursts on PTCCH/U for every TA Index */ |
| 964 | [] BTS.receive(tr_RAW_PCU_EV(TDMA_EV_PTCCH_UL_BURST)) -> value event { |
| 965 | ss := f_tdma_ptcch_fn2ss(event.data.tdma_fn); |
Vadim Yanitskiy | 91f8a09 | 2020-05-06 21:41:05 +0700 | [diff] [blame] | 966 | if (ss < 0) { /* Shall not happen */ |
| 967 | f_shutdown(__BFILE__, __LINE__); |
| 968 | } |
Pau Espin Pedrol | 8dd59fb | 2020-04-29 15:08:16 +0200 | [diff] [blame] | 969 | |
| 970 | log("Sending an Access Burst on PTCCH/U", |
| 971 | ", sub-slot=", ss, " (TAI)", |
| 972 | ", fn=", event.data.tdma_fn, |
| 973 | ", ToA=", toa_map[ss], " (QTA)"); |
| 974 | /* TODO: do we care about RA and burst format? */ |
| 975 | BTS.send(ts_PCUIF_RACH_IND(bts_nr, trx_nr, ts_nr, |
| 976 | ra := oct2int('3A'O), |
| 977 | is_11bit := 0, |
| 978 | burst_type := BURST_TYPE_0, |
| 979 | fn := event.data.tdma_fn, |
| 980 | arfcn := 871, |
| 981 | qta := toa_map[ss], |
| 982 | sapi := PCU_IF_SAPI_PTCCH)); |
| 983 | repeat; |
| 984 | } |
| 985 | } |
| 986 | |
| 987 | private function f_TC_ta_ptcch_ul_multi_tbf(in PTCCH_TAI_ToA_MAP ptcch_toa_map, |
| 988 | template PTCCHDownlinkMsg t_ta_msg) |
| 989 | runs on RAW_PCU_Test_CT { |
| 990 | var PTCCHDownlinkMsg ta_msg; |
| 991 | var PCUIF_Message pcu_msg; |
| 992 | timer T; |
| 993 | |
| 994 | /* First, send an RTS.req for the upcoming PTCCH/D block */ |
| 995 | BTS.send(ts_PCUIF_RTS_REQ(bts_nr := 0, trx_nr := 0, ts_nr := 7, |
| 996 | sapi := PCU_IF_SAPI_PTCCH, fn := 0, |
| 997 | arfcn := 871, block_nr := 0)); |
| 998 | T.start(2.0); |
| 999 | alt { |
| 1000 | /* Keep sending of Access Bursts during two multi-frames (period of PTCCH/D) |
| 1001 | * with increasing ToA (Timing of Arrival) values: 0, 7, 14, 28, 35... */ |
| 1002 | [] as_ta_ptcch(bts_nr := 0, trx_nr := 0, ts_nr := 7, toa_map := ptcch_toa_map); |
| 1003 | /* In the end of 2nd multi-frame we should receive a PTCCH/D block */ |
| 1004 | [] BTS.receive(tr_PCUIF_DATA_REQ(bts_nr := 0, trx_nr := 0, ts_nr := 7, |
| 1005 | sapi := PCU_IF_SAPI_PTCCH)) -> value pcu_msg { |
| 1006 | ta_msg := dec_PTCCHDownlinkMsg(pcu_msg.u.data_req.data); |
| 1007 | log("Rx PTCCH/D message: ", ta_msg); |
| 1008 | |
| 1009 | /* Make sure Timing Advance values match our expectations */ |
Vadim Yanitskiy | 91f8a09 | 2020-05-06 21:41:05 +0700 | [diff] [blame] | 1010 | if (not match(ta_msg, t_ta_msg)) { |
Pau Espin Pedrol | 8dd59fb | 2020-04-29 15:08:16 +0200 | [diff] [blame] | 1011 | setverdict(fail, "PTCCH/D message does not match: ", t_ta_msg); |
| 1012 | } |
| 1013 | } |
| 1014 | [] BTS.receive { repeat; } |
| 1015 | [] T.timeout { |
| 1016 | setverdict(fail, "Timeout waiting for a PTCCH/D block"); |
Pau Espin Pedrol | 8dd59fb | 2020-04-29 15:08:16 +0200 | [diff] [blame] | 1017 | } |
| 1018 | } |
| 1019 | } |
| 1020 | |
| 1021 | testcase TC_ta_ptcch_ul_multi_tbf() runs on RAW_PCU_Test_CT { |
| 1022 | var template PacketUlAssign t_ul_tbf_ass; |
| 1023 | var PacketUlAssign ul_tbf_ass[7]; |
| 1024 | var GsmRrMessage rr_msg[7]; |
| 1025 | var boolean ok; |
| 1026 | |
| 1027 | /* Initialize the PCU interface abstraction */ |
| 1028 | f_init_raw(testcasename()); |
| 1029 | |
| 1030 | /* Enable forwarding of PTCCH/U TDMA events to us */ |
| 1031 | BTS.send(ts_RAW_PCU_CMD(TDMA_CMD_ENABLE_PTCCH_UL_FWD)); |
| 1032 | |
| 1033 | /* Establish 7 Uplink TBFs (USF flag is 3 bits long, '111'B is reserved) */ |
| 1034 | for (var integer i := 0; i < 7; i := i + 1) { |
| 1035 | ok := f_establish_tbf(rr_msg[i], ta := 0); |
| 1036 | if (not ok) { |
| 1037 | setverdict(fail, "Failed to establish an Uplink TBF #", i); |
Vadim Yanitskiy | 91f8a09 | 2020-05-06 21:41:05 +0700 | [diff] [blame] | 1038 | break; |
Pau Espin Pedrol | 8dd59fb | 2020-04-29 15:08:16 +0200 | [diff] [blame] | 1039 | } |
| 1040 | |
| 1041 | /* Make sure we received an UL TBF Assignment */ |
| 1042 | if (match(rr_msg[i], tr_IMM_TBF_ASS(dl := false, rest := tr_IaRestOctets_ULAss(?)))) { |
| 1043 | ul_tbf_ass[i] := rr_msg[i].payload.imm_ass.rest_octets.hh.pa.uldl.ass.ul; |
| 1044 | log("Rx Uplink TBF assignment for #", i, ": ", ul_tbf_ass[i]); |
| 1045 | } else { |
| 1046 | setverdict(fail, "Failed to match UL TBF Assignment for #", i); |
Vadim Yanitskiy | 91f8a09 | 2020-05-06 21:41:05 +0700 | [diff] [blame] | 1047 | break; |
Pau Espin Pedrol | 8dd59fb | 2020-04-29 15:08:16 +0200 | [diff] [blame] | 1048 | } |
| 1049 | |
| 1050 | /* We expect incremental TFI/USF assignment (dynamic allocation) */ |
| 1051 | t_ul_tbf_ass := tr_PacketUlDynAssign(tfi := i, usf := i); |
| 1052 | if (not match(ul_tbf_ass[i], t_ul_tbf_ass)) { |
| 1053 | setverdict(fail, "Failed to match Packet Uplink Assignment for #", i); |
Vadim Yanitskiy | 91f8a09 | 2020-05-06 21:41:05 +0700 | [diff] [blame] | 1054 | break; |
Pau Espin Pedrol | 8dd59fb | 2020-04-29 15:08:16 +0200 | [diff] [blame] | 1055 | } |
| 1056 | |
| 1057 | /* We also expect Timing Advance Index to be a part of the assignment */ |
| 1058 | if (ul_tbf_ass[i].dynamic.ta_index != i) { |
| 1059 | setverdict(fail, "Failed to match Timing Advance Index for #", i); |
| 1060 | /* Keep going, the current OsmoPCU does not assign TA Index */ |
| 1061 | } |
| 1062 | } |
| 1063 | |
| 1064 | /* Prepare a list of ToA values for Access Bursts to be sent on PTCCH/U */ |
| 1065 | var PTCCH_TAI_ToA_MAP toa_map := ptcch_toa_map_def; |
| 1066 | for (var integer i := 0; i < 7; i := i + 1) { |
| 1067 | /* ToA in units of 1/4 of a symbol */ |
| 1068 | toa_map[i] := (i + 1) * 7 * 4; |
| 1069 | } |
| 1070 | |
| 1071 | /* Now we have all 7 TBFs established in one-phase access mode, |
| 1072 | * however we will not be sending any data on them. Instead, we |
| 1073 | * will be sending RACH.ind on PTCCH/U during 4 multi-frame |
| 1074 | * periods (TAI 0..8), and then will check two PTCCH/D blocks. |
| 1075 | * |
| 1076 | * Why not 4 TBFs at once? Because Uplink is delayed by 3 TDMA |
| 1077 | * time-slots, so at the moment of scheduling a PTCCH/D block |
| 1078 | * the PCU has odd number of PTCCH/U Access Bursts received. */ |
| 1079 | f_TC_ta_ptcch_ul_multi_tbf(toa_map, tr_PTCCHDownlinkMsg( |
| 1080 | tai0_ta := 7, tai1_ta := 14, tai2_ta := 21, |
| 1081 | /* Other values are not known (yet) */ |
| 1082 | tai3_ta := ?)); |
| 1083 | f_TC_ta_ptcch_ul_multi_tbf(toa_map, tr_PTCCHDownlinkMsg( |
| 1084 | tai0_ta := 7, tai1_ta := 14, tai2_ta := 21, |
| 1085 | tai3_ta := 28, tai4_ta := 35, tai5_ta := 42, |
| 1086 | /* Other values are out of our interest */ |
| 1087 | tai6_ta := ?)); |
Vadim Yanitskiy | 91f8a09 | 2020-05-06 21:41:05 +0700 | [diff] [blame] | 1088 | |
| 1089 | f_shutdown(__BFILE__, __LINE__, final := true); |
Pau Espin Pedrol | 8dd59fb | 2020-04-29 15:08:16 +0200 | [diff] [blame] | 1090 | } |
| 1091 | |
| 1092 | /* Default link quality adaptation (Coding Scheme) ranges (inclusive). |
| 1093 | * OsmoPCU (VTY): cs link-quality-ranges cs1 6 cs2 5 8 cs3 7 13 cs4 12 |
| 1094 | * |
| 1095 | * NOTE: the ranges are intentionally overlapping because OsmoPCU |
| 1096 | * does not change CS/MCS on the range borders (5-6, 7-8, 12-13). */ |
| 1097 | private template integer CS1_lqual_dB_range := (-infinity .. 6); |
| 1098 | private template integer CS2_lqual_dB_range := (5 .. 8); |
| 1099 | private template integer CS3_lqual_dB_range := (7 .. 13); |
| 1100 | private template integer CS4_lqual_dB_range := (12 .. infinity); |
| 1101 | |
| 1102 | testcase TC_cs_lqual_ul_tbf() runs on RAW_PCU_Test_CT { |
| 1103 | var GsmRrMessage rr_imm_ass; |
| 1104 | var PacketUlAssign ul_tbf_ass; |
| 1105 | var RlcmacDlBlock dl_block; |
| 1106 | var PCUIF_Message pcu_msg; |
| 1107 | var octetstring data; |
| 1108 | var boolean ok; |
| 1109 | var uint32_t unused_fn; |
| 1110 | |
| 1111 | /* Initialize the PCU interface abstraction */ |
| 1112 | f_init_raw(testcasename()); |
| 1113 | |
| 1114 | f_pcuvty_set_allowed_cs_mcs(); |
| 1115 | f_pcuvty_set_link_quality_ranges(); |
| 1116 | |
| 1117 | /* Establish an Uplink TBF */ |
| 1118 | ok := f_establish_tbf(rr_imm_ass); |
| 1119 | if (not ok) { |
| 1120 | setverdict(fail, "Failed to establish TBF"); |
Vadim Yanitskiy | 91f8a09 | 2020-05-06 21:41:05 +0700 | [diff] [blame] | 1121 | f_shutdown(__BFILE__, __LINE__); |
Pau Espin Pedrol | 8dd59fb | 2020-04-29 15:08:16 +0200 | [diff] [blame] | 1122 | } |
| 1123 | |
Vadim Yanitskiy | 2e213ae | 2020-05-06 22:26:17 +0700 | [diff] [blame] | 1124 | /* Make sure we've got an Uplink TBF assignment */ |
| 1125 | f_imm_ass_verify_ul_tbf_ass(rr_imm_ass, ul_tbf_ass); |
Pau Espin Pedrol | 8dd59fb | 2020-04-29 15:08:16 +0200 | [diff] [blame] | 1126 | |
| 1127 | var template (value) RlcmacUlBlock ul_data := t_RLCMAC_UL_DATA( |
| 1128 | tfi := ul_tbf_ass.dynamic.tfi_assignment, |
| 1129 | cv := 15, /* 16 UL blocks to be sent (to be overridden in loop) */ |
| 1130 | bsn := 0, /* TODO: what should be here? */ |
| 1131 | blocks := { /* To be generated in loop */ }); |
| 1132 | |
| 1133 | /* HACK: patch missing TLLI; otherwise OsmoPCU rejects DATA.req */ |
| 1134 | ul_data.data.tlli := '00000001'O; |
| 1135 | |
| 1136 | /* The actual / old link quality values. We need to keep track of the old |
| 1137 | * (basically previous) link quality value, because OsmoPCU actually |
| 1138 | * changes the coding scheme if not only the actual, but also the old |
| 1139 | * value leaves the current link quality range (window). */ |
| 1140 | var integer lqual := 0; |
| 1141 | var integer lqual_old; |
| 1142 | |
| 1143 | /* 16 UL blocks (0 .. 15 dB, step = 1 dB) */ |
| 1144 | for (var integer i := 0; i < 16; i := i + 1) { |
| 1145 | /* Prepare a new UL block (CV, random payload) */ |
| 1146 | ul_data.data.mac_hdr.countdown := (15 - i); |
| 1147 | ul_data.data.blocks := { valueof(t_RLCMAC_LLCBLOCK(f_rnd_octstring(10))) }; |
| 1148 | |
| 1149 | /* Update the old / actual link quality */ |
| 1150 | lqual_old := lqual; |
| 1151 | lqual := i; |
| 1152 | |
| 1153 | /* Enqueue DATA.ind (both TDMA frame and block numbers to be patched) */ |
| 1154 | log("Sending DATA.ind with link quality (dB): ", lqual); |
| 1155 | f_tx_rlcmac_ul_block(ul_data, lqual * 10); |
| 1156 | |
| 1157 | /* Enqueue RTS.req, expect DATA.req with UL ACK from the PCU */ |
| 1158 | f_rx_rlcmac_dl_block_exp_ack_nack(dl_block, unused_fn); |
| 1159 | |
| 1160 | log("Rx Packet Uplink ACK / NACK with Channel Coding Command: ", |
| 1161 | dl_block.ctrl.payload.u.ul_ack_nack.gprs.ch_coding_cmd); |
| 1162 | |
| 1163 | /* Match the received Channel Coding Command. Since we are increasing |
| 1164 | * the link quality value on each iteration and not decreasing, there |
| 1165 | * is no need to check the both old and current link quality values. */ |
| 1166 | var template ChCodingCommand ch_coding; |
| 1167 | select (lqual_old) { |
| 1168 | case (CS1_lqual_dB_range) { ch_coding := CH_CODING_CS1; } |
| 1169 | case (CS2_lqual_dB_range) { ch_coding := CH_CODING_CS2; } |
| 1170 | case (CS3_lqual_dB_range) { ch_coding := CH_CODING_CS3; } |
| 1171 | case (CS4_lqual_dB_range) { ch_coding := CH_CODING_CS4; } |
| 1172 | } |
| 1173 | |
| 1174 | if (not match(dl_block.ctrl.payload.u.ul_ack_nack.gprs.ch_coding_cmd, ch_coding)) { |
| 1175 | setverdict(fail, "Channel Coding does not match our expectations: ", ch_coding); |
Pau Espin Pedrol | 8dd59fb | 2020-04-29 15:08:16 +0200 | [diff] [blame] | 1176 | } |
| 1177 | } |
Vadim Yanitskiy | 91f8a09 | 2020-05-06 21:41:05 +0700 | [diff] [blame] | 1178 | |
| 1179 | f_shutdown(__BFILE__, __LINE__, final := true); |
Pau Espin Pedrol | 8dd59fb | 2020-04-29 15:08:16 +0200 | [diff] [blame] | 1180 | } |
| 1181 | |
| 1182 | /* Test the max UL CS set by VTY works fine */ |
| 1183 | testcase TC_cs_initial_ul() runs on RAW_PCU_Test_CT { |
| 1184 | var GsmRrMessage rr_imm_ass; |
| 1185 | var PacketUlAssign ul_tbf_ass; |
| 1186 | var RlcmacDlBlock dl_block; |
| 1187 | var boolean ok; |
| 1188 | var integer lqual_cb; |
| 1189 | var ChCodingCommand last_ch_coding; |
| 1190 | var uint32_t unused_fn; |
| 1191 | |
| 1192 | /* Initialize the PCU interface abstraction */ |
| 1193 | f_init_raw(testcasename()); |
| 1194 | |
| 1195 | /* Set initial UL CS to 3 */ |
| 1196 | g_cs_initial_ul := 3; |
| 1197 | f_pcuvty_set_allowed_cs_mcs(); |
| 1198 | f_pcuvty_set_link_quality_ranges(); |
| 1199 | |
| 1200 | /* Take lqual (dB->cB) so that we stay in that CS */ |
| 1201 | lqual_cb := g_cs_lqual_ranges[2].low * 10; |
| 1202 | |
| 1203 | /* Establish an Uplink TBF */ |
| 1204 | ok := f_establish_tbf(rr_imm_ass); |
| 1205 | if (not ok) { |
| 1206 | setverdict(fail, "Failed to establish TBF"); |
Vadim Yanitskiy | 91f8a09 | 2020-05-06 21:41:05 +0700 | [diff] [blame] | 1207 | f_shutdown(__BFILE__, __LINE__); |
Pau Espin Pedrol | 8dd59fb | 2020-04-29 15:08:16 +0200 | [diff] [blame] | 1208 | } |
| 1209 | |
Vadim Yanitskiy | 2e213ae | 2020-05-06 22:26:17 +0700 | [diff] [blame] | 1210 | /* Make sure we've got an Uplink TBF assignment */ |
| 1211 | f_imm_ass_verify_ul_tbf_ass(rr_imm_ass, ul_tbf_ass); |
Pau Espin Pedrol | 8dd59fb | 2020-04-29 15:08:16 +0200 | [diff] [blame] | 1212 | |
| 1213 | var template (value) RlcmacUlBlock ul_data := t_RLCMAC_UL_DATA( |
| 1214 | tfi := ul_tbf_ass.dynamic.tfi_assignment, |
| 1215 | cv := 3, /* 8 UL blocks to be sent (to be overridden in loop) */ |
| 1216 | bsn := 0, /* TODO: what should be here? */ |
| 1217 | blocks := { /* To be generated in loop */ }); |
| 1218 | |
| 1219 | /* HACK: patch missing TLLI; otherwise OsmoPCU rejects DATA.req */ |
| 1220 | ul_data.data.tlli := '00000001'O; |
| 1221 | |
| 1222 | /* 3 UL blocks, check we are in same initial CS: */ |
| 1223 | for (var integer i := 0; i < 3; i := i + 1) { |
| 1224 | /* Prepare a new UL block (CV, random payload) */ |
| 1225 | ul_data.data.mac_hdr.countdown := (7 - i); |
| 1226 | ul_data.data.blocks := { valueof(t_RLCMAC_LLCBLOCK(f_rnd_octstring(10))) }; |
| 1227 | |
| 1228 | /* Enqueue DATA.ind (both TDMA frame and block numbers to be patched) */ |
| 1229 | f_tx_rlcmac_ul_block(ul_data, lqual_cb); |
| 1230 | |
| 1231 | /* Enqueue RTS.req, expect DATA.req with UL ACK from the PCU */ |
| 1232 | f_rx_rlcmac_dl_block_exp_ack_nack(dl_block, unused_fn); |
| 1233 | last_ch_coding := dl_block.ctrl.payload.u.ul_ack_nack.gprs.ch_coding_cmd; |
| 1234 | } |
| 1235 | |
| 1236 | if (last_ch_coding != CH_CODING_CS3) { |
| 1237 | setverdict(fail, "Channel Coding does not match our expectations (CS-3): ", last_ch_coding); |
Pau Espin Pedrol | 8dd59fb | 2020-04-29 15:08:16 +0200 | [diff] [blame] | 1238 | } |
| 1239 | |
Pau Espin Pedrol | 8dd59fb | 2020-04-29 15:08:16 +0200 | [diff] [blame] | 1240 | /* Remaining UL blocks are used to make sure regardless of initial |
| 1241 | /* lqual, we can go lower at any time */ |
| 1242 | |
| 1243 | /* 5 UL blocks, check we are in same initial CS: */ |
| 1244 | for (var integer i := 3; i < 8; i := i + 1) { |
| 1245 | /* Prepare a new UL block (CV, random payload) */ |
| 1246 | ul_data.data.mac_hdr.countdown := (7 - i); |
| 1247 | ul_data.data.blocks := { valueof(t_RLCMAC_LLCBLOCK(f_rnd_octstring(10))) }; |
| 1248 | |
| 1249 | /* Enqueue DATA.ind (both TDMA frame and block numbers to be patched) */ |
| 1250 | f_tx_rlcmac_ul_block(ul_data, 0); /* 0 dB, make sure we downgrade CS */ |
| 1251 | |
| 1252 | /* Enqueue RTS.req, expect DATA.req with UL ACK from the PCU */ |
| 1253 | f_rx_rlcmac_dl_block_exp_ack_nack(dl_block, unused_fn); |
| 1254 | |
| 1255 | last_ch_coding := dl_block.ctrl.payload.u.ul_ack_nack.gprs.ch_coding_cmd; |
| 1256 | } |
| 1257 | |
| 1258 | if (last_ch_coding != CH_CODING_CS1) { |
| 1259 | setverdict(fail, "Channel Coding does not match our expectations (CS-1): ", last_ch_coding); |
Pau Espin Pedrol | 8dd59fb | 2020-04-29 15:08:16 +0200 | [diff] [blame] | 1260 | } |
Vadim Yanitskiy | 91f8a09 | 2020-05-06 21:41:05 +0700 | [diff] [blame] | 1261 | |
| 1262 | f_shutdown(__BFILE__, __LINE__, final := true); |
Pau Espin Pedrol | 8dd59fb | 2020-04-29 15:08:16 +0200 | [diff] [blame] | 1263 | } |
| 1264 | |
| 1265 | /* Test the max UL CS set by VTY works fine */ |
| 1266 | testcase TC_cs_max_ul() runs on RAW_PCU_Test_CT { |
| 1267 | var GsmRrMessage rr_imm_ass; |
| 1268 | var PacketUlAssign ul_tbf_ass; |
| 1269 | var RlcmacDlBlock dl_block; |
| 1270 | var boolean ok; |
| 1271 | var ChCodingCommand last_ch_coding; |
| 1272 | var uint32_t unused_fn; |
| 1273 | |
| 1274 | /* Initialize the PCU interface abstraction */ |
| 1275 | f_init_raw(testcasename()); |
| 1276 | |
| 1277 | /* Set maximum allowed UL CS to 3 */ |
| 1278 | g_cs_max_ul := 3; |
| 1279 | f_pcuvty_set_allowed_cs_mcs(); |
| 1280 | f_pcuvty_set_link_quality_ranges(); |
| 1281 | |
| 1282 | /* Establish an Uplink TBF */ |
| 1283 | ok := f_establish_tbf(rr_imm_ass); |
| 1284 | if (not ok) { |
| 1285 | setverdict(fail, "Failed to establish TBF"); |
Vadim Yanitskiy | 91f8a09 | 2020-05-06 21:41:05 +0700 | [diff] [blame] | 1286 | f_shutdown(__BFILE__, __LINE__); |
Pau Espin Pedrol | 8dd59fb | 2020-04-29 15:08:16 +0200 | [diff] [blame] | 1287 | } |
| 1288 | |
Vadim Yanitskiy | 2e213ae | 2020-05-06 22:26:17 +0700 | [diff] [blame] | 1289 | /* Make sure we've got an Uplink TBF assignment */ |
| 1290 | f_imm_ass_verify_ul_tbf_ass(rr_imm_ass, ul_tbf_ass); |
Pau Espin Pedrol | 8dd59fb | 2020-04-29 15:08:16 +0200 | [diff] [blame] | 1291 | |
| 1292 | var template (value) RlcmacUlBlock ul_data := t_RLCMAC_UL_DATA( |
| 1293 | tfi := ul_tbf_ass.dynamic.tfi_assignment, |
| 1294 | cv := 15, /* 16 UL blocks to be sent (to be overridden in loop) */ |
| 1295 | bsn := 0, /* TODO: what should be here? */ |
| 1296 | blocks := { /* To be generated in loop */ }); |
| 1297 | |
| 1298 | /* HACK: patch missing TLLI; otherwise OsmoPCU rejects DATA.req */ |
| 1299 | ul_data.data.tlli := '00000001'O; |
| 1300 | |
| 1301 | /* 16 UL blocks */ |
| 1302 | for (var integer i := 0; i < 16; i := i + 1) { |
| 1303 | /* Prepare a new UL block (CV, random payload) */ |
| 1304 | ul_data.data.mac_hdr.countdown := (15 - i); |
| 1305 | ul_data.data.blocks := { valueof(t_RLCMAC_LLCBLOCK(f_rnd_octstring(10))) }; |
| 1306 | |
| 1307 | /* Enqueue DATA.ind (both TDMA frame and block numbers to be patched) */ |
| 1308 | f_tx_rlcmac_ul_block(ul_data, 40*10); /* 40 dB */ |
| 1309 | |
| 1310 | /* Enqueue RTS.req, expect DATA.req with UL ACK from the PCU */ |
| 1311 | f_rx_rlcmac_dl_block_exp_ack_nack(dl_block, unused_fn); |
| 1312 | |
| 1313 | last_ch_coding := dl_block.ctrl.payload.u.ul_ack_nack.gprs.ch_coding_cmd; |
| 1314 | } |
| 1315 | |
| 1316 | if (last_ch_coding != CH_CODING_CS3) { |
| 1317 | setverdict(fail, "Channel Coding does not match our expectations (CS-3): ", last_ch_coding); |
Pau Espin Pedrol | 8dd59fb | 2020-04-29 15:08:16 +0200 | [diff] [blame] | 1318 | } |
Vadim Yanitskiy | 91f8a09 | 2020-05-06 21:41:05 +0700 | [diff] [blame] | 1319 | |
| 1320 | f_shutdown(__BFILE__, __LINE__, final := true); |
Pau Espin Pedrol | 8dd59fb | 2020-04-29 15:08:16 +0200 | [diff] [blame] | 1321 | } |
| 1322 | |
| 1323 | /* Verify PCU drops TBF after some time of inactivity. */ |
| 1324 | testcase TC_t3169() runs on RAW_PCU_Test_CT { |
| 1325 | var PCUIF_info_ind info_ind; |
| 1326 | var GsmRrMessage rr_imm_ass; |
| 1327 | var PacketUlAssign ul_tbf_ass; |
| 1328 | var RlcmacDlBlock dl_block; |
| 1329 | var PCUIF_Message pcu_msg; |
| 1330 | var octetstring data; |
| 1331 | var boolean ok; |
| 1332 | var uint32_t unused_fn; |
| 1333 | var OCT4 tlli := '00000001'O; |
Pau Espin Pedrol | 4cbb960 | 2020-05-14 19:21:49 +0200 | [diff] [blame] | 1334 | var uint14_t bsn := 0; |
Pau Espin Pedrol | 8dd59fb | 2020-04-29 15:08:16 +0200 | [diff] [blame] | 1335 | |
| 1336 | /* Initialize NS/BSSGP side */ |
| 1337 | f_init_bssgp(); |
| 1338 | |
| 1339 | info_ind := valueof(ts_PCUIF_INFO_default); |
| 1340 | /* Set timer to 1 sec (default 5) to speedup test: */ |
| 1341 | info_ind.t3169 := 1; |
| 1342 | |
| 1343 | /* Initialize the PCU interface abstraction */ |
| 1344 | f_init_raw(testcasename(), info_ind); |
| 1345 | |
| 1346 | /* Establish BSSGP connection to the PCU */ |
| 1347 | f_bssgp_establish(); |
| 1348 | f_bssgp_client_llgmm_assign('FFFFFFFF'O, tlli); |
| 1349 | |
| 1350 | /* Establish an Uplink TBF */ |
| 1351 | ok := f_establish_tbf(rr_imm_ass); |
| 1352 | if (not ok) { |
| 1353 | setverdict(fail, "Failed to establish TBF"); |
Vadim Yanitskiy | 91f8a09 | 2020-05-06 21:41:05 +0700 | [diff] [blame] | 1354 | f_shutdown(__BFILE__, __LINE__); |
Pau Espin Pedrol | 8dd59fb | 2020-04-29 15:08:16 +0200 | [diff] [blame] | 1355 | } |
| 1356 | |
Vadim Yanitskiy | 2e213ae | 2020-05-06 22:26:17 +0700 | [diff] [blame] | 1357 | /* Make sure we've got an Uplink TBF assignment */ |
| 1358 | f_imm_ass_verify_ul_tbf_ass(rr_imm_ass, ul_tbf_ass); |
Pau Espin Pedrol | 8dd59fb | 2020-04-29 15:08:16 +0200 | [diff] [blame] | 1359 | |
Pau Espin Pedrol | 4aac3d0 | 2020-05-13 15:13:49 +0200 | [diff] [blame] | 1360 | /* Send one UL block (with TLLI since we are in One-Phase Access |
| 1361 | contention resoultion) and make sure it is ACKED fine */ |
Pau Espin Pedrol | 4cbb960 | 2020-05-14 19:21:49 +0200 | [diff] [blame] | 1362 | f_tx_rlcmac_ul_n_blocks(ul_tbf_ass.dynamic.tfi_assignment, bsn, 1, tlli); |
Pau Espin Pedrol | 8dd59fb | 2020-04-29 15:08:16 +0200 | [diff] [blame] | 1363 | f_rx_rlcmac_dl_block_exp_ack_nack(dl_block, unused_fn); |
| 1364 | /* UL block should be received in SGSN */ |
| 1365 | BSSGP[0].receive(tr_BSSGP_UL_UD(tlli, mp_gb_cfg.cell_id)); |
| 1366 | |
| 1367 | /* Wait until T3169 fires (plus 1 extra sec to make sure) */ |
| 1368 | f_sleep(int2float(info_ind.t3169) + 1.0); |
| 1369 | |
| 1370 | /* Send an UL block once again, the TBF should be gone by now so no ACK */ |
Pau Espin Pedrol | 4cbb960 | 2020-05-14 19:21:49 +0200 | [diff] [blame] | 1371 | bsn := 0; |
| 1372 | f_tx_rlcmac_ul_n_blocks(ul_tbf_ass.dynamic.tfi_assignment, bsn, 1); |
Pau Espin Pedrol | 8dd59fb | 2020-04-29 15:08:16 +0200 | [diff] [blame] | 1373 | f_rx_rlcmac_dl_block_exp_dummy(dl_block); |
Vadim Yanitskiy | 91f8a09 | 2020-05-06 21:41:05 +0700 | [diff] [blame] | 1374 | |
| 1375 | f_shutdown(__BFILE__, __LINE__, final := true); |
Pau Espin Pedrol | 8dd59fb | 2020-04-29 15:08:16 +0200 | [diff] [blame] | 1376 | } |
| 1377 | |
| 1378 | /* Verify that a Downlink TBF can be assigned using PACCH shortly after the |
| 1379 | * release of prev DL TBF due to MS staying in PDCH for a while (T3192, in PCU |
| 1380 | * T3193) after DL TBF release */ |
| 1381 | testcase TC_t3193() runs on RAW_PCU_Test_CT { |
| 1382 | var GsmRrMessage rr_imm_ass; |
| 1383 | var PacketDlAssign dl_tbf_ass; |
| 1384 | var RlcmacDlBlock dl_block; |
| 1385 | var octetstring data := f_rnd_octstring(10); |
| 1386 | var boolean ok; |
| 1387 | var uint32_t sched_fn; |
Vadim Yanitskiy | b6733a6 | 2020-05-10 14:39:00 +0700 | [diff] [blame] | 1388 | var uint32_t dl_fn; |
Pau Espin Pedrol | 8dd59fb | 2020-04-29 15:08:16 +0200 | [diff] [blame] | 1389 | var OCT4 tlli := '00000001'O; |
| 1390 | var AckNackDescription ack_nack_desc := valueof(t_AckNackDescription_init); |
| 1391 | |
| 1392 | /* Initialize NS/BSSGP side */ |
| 1393 | f_init_bssgp(); |
| 1394 | |
| 1395 | /* Initialize the PCU interface abstraction */ |
| 1396 | f_init_raw(testcasename()); |
| 1397 | |
| 1398 | /* Establish BSSGP connection to the PCU */ |
| 1399 | f_bssgp_establish(); |
| 1400 | f_bssgp_client_llgmm_assign('FFFFFFFF'O, tlli); |
| 1401 | |
| 1402 | /* SGSN sends some DL data, PCU will page on CCCH (PCH) */ |
| 1403 | BSSGP[0].send(ts_BSSGP_DL_UD(tlli, data)); |
| 1404 | f_pcuif_rx_pch_imm_tbf_ass(rr_imm_ass); |
Vadim Yanitskiy | 2e213ae | 2020-05-06 22:26:17 +0700 | [diff] [blame] | 1405 | |
| 1406 | /* Make sure we've got a Downlink TBF assignment */ |
| 1407 | f_imm_ass_verify_dl_tbf_ass(rr_imm_ass, dl_tbf_ass); |
| 1408 | |
Pau Espin Pedrol | 8dd59fb | 2020-04-29 15:08:16 +0200 | [diff] [blame] | 1409 | /* Wait timer X2002 and DL block is available after CCCH IMM ASS: */ |
| 1410 | f_sleep(X2002); |
Vadim Yanitskiy | b6733a6 | 2020-05-10 14:39:00 +0700 | [diff] [blame] | 1411 | f_rx_rlcmac_dl_block_exp_data(dl_block, dl_fn, data, 0); |
Pau Espin Pedrol | 8dd59fb | 2020-04-29 15:08:16 +0200 | [diff] [blame] | 1412 | |
| 1413 | /* ACK the DL block */ |
| 1414 | f_acknackdesc_ack_block(ack_nack_desc, dl_block, '1'B); |
Vadim Yanitskiy | b6733a6 | 2020-05-10 14:39:00 +0700 | [diff] [blame] | 1415 | f_tx_rlcmac_ul_block(ts_RLCMAC_DL_ACK_NACK(f_rlcmac_dl_block_get_tfi(dl_block), ack_nack_desc), |
| 1416 | 0, f_dl_block_ack_fn(dl_block, dl_fn)); |
Pau Espin Pedrol | 8dd59fb | 2020-04-29 15:08:16 +0200 | [diff] [blame] | 1417 | /* we are done with the DL-TBF here so far, let's clean up our local state: */ |
| 1418 | ack_nack_desc := valueof(t_AckNackDescription_init) |
| 1419 | |
| 1420 | /* Now that final DL block is ACKED and TBF is released, T3193 in PCU |
| 1421 | (T3192 in MS) was started and until it fires the MS will be abailable |
| 1422 | on PDCH in case new data arrives from SGSN. Let's verify it: */ |
| 1423 | BSSGP[0].send(ts_BSSGP_DL_UD(tlli, data)); |
| 1424 | f_rx_rlcmac_dl_block_exp_pkt_ass(dl_block, sched_fn); |
| 1425 | f_tx_rlcmac_ul_block(ts_RLCMAC_CTRL_ACK(tlli), 0, sched_fn); |
| 1426 | |
| 1427 | /* Now that we confirmed the new assignment in the dl-tbf, lets receive the data and ack it */ |
Vadim Yanitskiy | b6733a6 | 2020-05-10 14:39:00 +0700 | [diff] [blame] | 1428 | f_rx_rlcmac_dl_block_exp_data(dl_block, dl_fn, data, 0); |
Pau Espin Pedrol | 8dd59fb | 2020-04-29 15:08:16 +0200 | [diff] [blame] | 1429 | f_acknackdesc_ack_block(ack_nack_desc, dl_block, '1'B); |
Vadim Yanitskiy | b6733a6 | 2020-05-10 14:39:00 +0700 | [diff] [blame] | 1430 | f_tx_rlcmac_ul_block(ts_RLCMAC_DL_ACK_NACK(f_rlcmac_dl_block_get_tfi(dl_block), ack_nack_desc), |
| 1431 | 0, f_dl_block_ack_fn(dl_block, dl_fn)); |
Vadim Yanitskiy | 91f8a09 | 2020-05-06 21:41:05 +0700 | [diff] [blame] | 1432 | |
| 1433 | f_shutdown(__BFILE__, __LINE__, final := true); |
Pau Espin Pedrol | 8dd59fb | 2020-04-29 15:08:16 +0200 | [diff] [blame] | 1434 | } |
| 1435 | |
Pau Espin Pedrol | 487d634 | 2020-05-14 19:22:33 +0200 | [diff] [blame] | 1436 | /* Verify PCU handles correctly Countdown Procedure based on BS_CV_MAX */ |
| 1437 | testcase TC_countdown_procedure() runs on RAW_PCU_Test_CT { |
| 1438 | var GsmRrMessage rr_imm_ass; |
| 1439 | var PacketUlAssign ul_tbf_ass; |
| 1440 | var RlcmacDlBlock dl_block; |
| 1441 | var boolean ok; |
| 1442 | var uint32_t sched_fn; |
| 1443 | var OCT4 tlli := '00000001'O; |
| 1444 | var uint14_t bsn := 1; |
| 1445 | var PDU_BSSGP bssgp_pdu; |
| 1446 | var octetstring total_payload; |
| 1447 | var integer padding_len; |
| 1448 | |
| 1449 | /* Initialize NS/BSSGP side */ |
| 1450 | f_init_bssgp(); |
| 1451 | |
| 1452 | /* Initialize the PCU interface abstraction */ |
| 1453 | f_init_raw(testcasename()); |
| 1454 | |
| 1455 | /* Establish BSSGP connection to the PCU */ |
| 1456 | f_bssgp_establish(); |
| 1457 | f_bssgp_client_llgmm_assign('FFFFFFFF'O, tlli); |
| 1458 | |
| 1459 | /* Establish an Uplink TBF */ |
| 1460 | ok := f_establish_tbf(rr_imm_ass); |
| 1461 | if (not ok) { |
| 1462 | setverdict(fail, "Failed to establish TBF"); |
| 1463 | f_shutdown(__BFILE__, __LINE__); |
| 1464 | } |
| 1465 | /* Make sure we've got an Uplink TBF assignment */ |
| 1466 | f_imm_ass_verify_ul_tbf_ass(rr_imm_ass, ul_tbf_ass); |
| 1467 | |
| 1468 | /* Send one UL block (with TLLI since we are in One-Phase Access |
| 1469 | contention resoultion) and make sure it is ACKED fine. */ |
| 1470 | total_payload := f_rnd_octstring(16); /* 16 bytes fills the llc block (because TLLI takes 4 bytes) */ |
| 1471 | var template (value) RlcmacUlBlock ul_data := t_RLCMAC_UL_DATA_TLLI( |
| 1472 | tfi := ul_tbf_ass.dynamic.tfi_assignment, |
| 1473 | cv := 15, /* Set CV = 15 to signal there's still more than BS_CV_MAX blocks to be sent */ |
| 1474 | bsn := 0, |
| 1475 | blocks := { valueof(t_RLCMAC_LLCBLOCK(total_payload)) }, |
| 1476 | tlli := tlli); |
| 1477 | |
| 1478 | f_tx_rlcmac_ul_block(ul_data, 0); |
| 1479 | f_rx_rlcmac_dl_block_exp_ack_nack(dl_block, sched_fn); |
| 1480 | /* DL ACK/NACK sets poll+rrbp requesting PACKET CONTROL ACK */ |
| 1481 | f_tx_rlcmac_ul_block(ts_RLCMAC_CTRL_ACK(tlli), 0, sched_fn); |
| 1482 | |
| 1483 | /* Send enough blocks to test whole procedure: Until Nth block |
| 1484 | (N=BS_CV_MAX), CV=15 is sent, and then the decreasing countdown value is sent. |
| 1485 | */ |
| 1486 | total_payload := total_payload & f_tx_rlcmac_ul_n_blocks(ul_tbf_ass.dynamic.tfi_assignment, bsn, 20); |
| 1487 | f_rx_rlcmac_dl_block_exp_ack_nack(dl_block, sched_fn); |
| 1488 | /* DL ACK/NACK sets poll+rrbp requesting PACKET CONTROL ACK */ |
| 1489 | f_tx_rlcmac_ul_block(ts_RLCMAC_CTRL_ACK(tlli), 0, sched_fn); |
| 1490 | |
| 1491 | /* receive one message on BSSGP with all aggregated data in payload: */ |
| 1492 | BSSGP[0].receive(tr_BSSGP_UL_UD(tlli, mp_gb_cfg.cell_id, total_payload)); |
| 1493 | } |
| 1494 | |
Pau Espin Pedrol | 8dd59fb | 2020-04-29 15:08:16 +0200 | [diff] [blame] | 1495 | /* Test scenario where MS wants to send some data on PDCH against SGSN and it is |
| 1496 | * answered, so TBFs for uplink and later for downlink are created. |
| 1497 | */ |
Pau Espin Pedrol | 02c972d | 2020-05-13 15:56:16 +0200 | [diff] [blame] | 1498 | private function f_TC_mo_ping_pong_1phase_access(template (present) CodingScheme exp_cs_mcs := ?) runs on RAW_PCU_Test_CT { |
Pau Espin Pedrol | 8dd59fb | 2020-04-29 15:08:16 +0200 | [diff] [blame] | 1499 | var GsmRrMessage rr_imm_ass; |
| 1500 | var PacketUlAssign ul_tbf_ass; |
| 1501 | var PacketDlAssign dl_tbf_ass; |
| 1502 | var RlcmacDlBlock dl_block; |
| 1503 | var PCUIF_Message pcu_msg; |
| 1504 | var octetstring data := f_rnd_octstring(10); |
| 1505 | var boolean ok; |
| 1506 | var uint32_t sched_fn; |
Vadim Yanitskiy | b6733a6 | 2020-05-10 14:39:00 +0700 | [diff] [blame] | 1507 | var uint32_t dl_fn; |
Pau Espin Pedrol | 8dd59fb | 2020-04-29 15:08:16 +0200 | [diff] [blame] | 1508 | var OCT4 tlli := '00000001'O; |
| 1509 | var AckNackDescription ack_nack_desc := valueof(t_AckNackDescription_init); |
Pau Espin Pedrol | 4cbb960 | 2020-05-14 19:21:49 +0200 | [diff] [blame] | 1510 | var uint14_t bsn := 0; |
Pau Espin Pedrol | 8dd59fb | 2020-04-29 15:08:16 +0200 | [diff] [blame] | 1511 | |
| 1512 | /* Initialize NS/BSSGP side */ |
| 1513 | f_init_bssgp(); |
| 1514 | |
| 1515 | /* Initialize the PCU interface abstraction */ |
| 1516 | f_init_raw(testcasename()); |
| 1517 | |
| 1518 | /* Establish BSSGP connection to the PCU */ |
| 1519 | f_bssgp_establish(); |
| 1520 | f_bssgp_client_llgmm_assign('FFFFFFFF'O, tlli); |
| 1521 | |
| 1522 | /* Establish an Uplink TBF */ |
| 1523 | ok := f_establish_tbf(rr_imm_ass); |
| 1524 | if (not ok) { |
| 1525 | setverdict(fail, "Failed to establish TBF"); |
Vadim Yanitskiy | 91f8a09 | 2020-05-06 21:41:05 +0700 | [diff] [blame] | 1526 | f_shutdown(__BFILE__, __LINE__); |
Pau Espin Pedrol | 8dd59fb | 2020-04-29 15:08:16 +0200 | [diff] [blame] | 1527 | } |
Vadim Yanitskiy | 2e213ae | 2020-05-06 22:26:17 +0700 | [diff] [blame] | 1528 | |
| 1529 | /* Make sure we've got an Uplink TBF assignment */ |
| 1530 | f_imm_ass_verify_ul_tbf_ass(rr_imm_ass, ul_tbf_ass); |
Pau Espin Pedrol | 8dd59fb | 2020-04-29 15:08:16 +0200 | [diff] [blame] | 1531 | |
Pau Espin Pedrol | 4aac3d0 | 2020-05-13 15:13:49 +0200 | [diff] [blame] | 1532 | /* Send one UL block (with TLLI since we are in One-Phase Access |
| 1533 | contention resoultion) and make sure it is ACKED fine */ |
Pau Espin Pedrol | 4cbb960 | 2020-05-14 19:21:49 +0200 | [diff] [blame] | 1534 | f_tx_rlcmac_ul_n_blocks(ul_tbf_ass.dynamic.tfi_assignment, bsn, 1, tlli); |
Pau Espin Pedrol | 8dd59fb | 2020-04-29 15:08:16 +0200 | [diff] [blame] | 1535 | f_rx_rlcmac_dl_block_exp_ack_nack(dl_block, sched_fn); |
| 1536 | /* DL ACK/NACK sets poll+rrbp requesting PACKET CONTROL ACK */ |
| 1537 | f_tx_rlcmac_ul_block(ts_RLCMAC_CTRL_ACK(tlli), 0, sched_fn); |
| 1538 | |
| 1539 | /* UL block should be received in SGSN */ |
| 1540 | BSSGP[0].receive(tr_BSSGP_UL_UD(tlli, mp_gb_cfg.cell_id)); |
| 1541 | |
| 1542 | /* Now SGSN sends some DL data, PCU will page on CCCH (PCH) */ |
| 1543 | BSSGP[0].send(ts_BSSGP_DL_UD(tlli, data)); |
| 1544 | f_pcuif_rx_pch_imm_tbf_ass(rr_imm_ass); |
| 1545 | |
Vadim Yanitskiy | 2e213ae | 2020-05-06 22:26:17 +0700 | [diff] [blame] | 1546 | /* Make sure we've got a Downlink TBF assignment */ |
| 1547 | f_imm_ass_verify_dl_tbf_ass(rr_imm_ass, dl_tbf_ass); |
Pau Espin Pedrol | 8dd59fb | 2020-04-29 15:08:16 +0200 | [diff] [blame] | 1548 | |
| 1549 | /* Wait timer X2002 and DL block is available after CCCH IMM ASS: */ |
| 1550 | f_sleep(X2002); |
Vadim Yanitskiy | b6733a6 | 2020-05-10 14:39:00 +0700 | [diff] [blame] | 1551 | f_rx_rlcmac_dl_block_exp_data(dl_block, dl_fn, data, 0, exp_cs_mcs); |
Pau Espin Pedrol | 8dd59fb | 2020-04-29 15:08:16 +0200 | [diff] [blame] | 1552 | |
| 1553 | /* ACK the DL block */ |
| 1554 | f_acknackdesc_ack_block(ack_nack_desc, dl_block, '1'B); |
Vadim Yanitskiy | b6733a6 | 2020-05-10 14:39:00 +0700 | [diff] [blame] | 1555 | f_tx_rlcmac_ul_block(ts_RLCMAC_DL_ACK_NACK(f_rlcmac_dl_block_get_tfi(dl_block), ack_nack_desc), |
| 1556 | 0, f_dl_block_ack_fn(dl_block, dl_fn)); |
Vadim Yanitskiy | 91f8a09 | 2020-05-06 21:41:05 +0700 | [diff] [blame] | 1557 | |
| 1558 | f_shutdown(__BFILE__, __LINE__, final := true); |
Pau Espin Pedrol | 8dd59fb | 2020-04-29 15:08:16 +0200 | [diff] [blame] | 1559 | } |
| 1560 | |
| 1561 | /* Test scenario where MS wants to send some data on PDCH against SGSN and it is |
| 1562 | * answered, so TBFs for uplink and later for downlink are created. |
| 1563 | */ |
| 1564 | testcase TC_mo_ping_pong() runs on RAW_PCU_Test_CT { |
| 1565 | var CodingScheme exp_cs_mcs := CS_1; |
Pau Espin Pedrol | 02c972d | 2020-05-13 15:56:16 +0200 | [diff] [blame] | 1566 | f_TC_mo_ping_pong_1phase_access(exp_cs_mcs); |
Pau Espin Pedrol | 8dd59fb | 2020-04-29 15:08:16 +0200 | [diff] [blame] | 1567 | } |
| 1568 | |
Pau Espin Pedrol | 02c972d | 2020-05-13 15:56:16 +0200 | [diff] [blame] | 1569 | /* Test scenario where MS wants to send some data on PDCH against SGSN and it is |
| 1570 | * answered, so TBFs for uplink and later for downlink are created. |
| 1571 | */ |
Pau Espin Pedrol | 42acafc | 2020-05-14 15:18:38 +0200 | [diff] [blame] | 1572 | private function f_TC_mo_ping_pong_2phase_access(template (value) MSRadioAccessCapabilityV ms_racap, |
| 1573 | template (present) CodingScheme exp_ul_cs_mcs := ?, |
| 1574 | template (present) CodingScheme exp_dl_cs_mcs := ?) |
| 1575 | runs on RAW_PCU_Test_CT { |
Pau Espin Pedrol | 02c972d | 2020-05-13 15:56:16 +0200 | [diff] [blame] | 1576 | var GsmRrMessage rr_imm_ass; |
| 1577 | var PacketUlAssign ul_tbf_ass; |
| 1578 | var PacketDlAssign dl_tbf_ass; |
| 1579 | var RlcmacDlBlock dl_block; |
| 1580 | var PCUIF_Message pcu_msg; |
| 1581 | var octetstring data := f_rnd_octstring(10); |
| 1582 | var boolean ok; |
| 1583 | var uint32_t sched_fn; |
| 1584 | var uint32_t dl_fn; |
| 1585 | var OCT4 tlli := '00000001'O; |
| 1586 | var AckNackDescription ack_nack_desc := valueof(t_AckNackDescription_init); |
Pau Espin Pedrol | 42acafc | 2020-05-14 15:18:38 +0200 | [diff] [blame] | 1587 | var CodingScheme cs_mcs; |
Pau Espin Pedrol | 4cbb960 | 2020-05-14 19:21:49 +0200 | [diff] [blame] | 1588 | var uint14_t bsn := 0; |
Pau Espin Pedrol | 02c972d | 2020-05-13 15:56:16 +0200 | [diff] [blame] | 1589 | /* 0111 0xxx: Single block packet access; one block period on a PDCH is needed for two phase packet access or other RR signalling purpose. */ |
| 1590 | var uint16_t ra := oct2int('70'O); |
Pau Espin Pedrol | 0c0bf87 | 2020-05-14 15:50:49 +0200 | [diff] [blame] | 1591 | if (g_force_two_phase_access) { |
| 1592 | /* If 2phase access is enforced by the network, then let's |
| 1593 | request a One phase packet access, we'll receive a single block |
| 1594 | anyway */ |
| 1595 | ra := bit2int(chan_req_def); |
| 1596 | } |
Pau Espin Pedrol | 02c972d | 2020-05-13 15:56:16 +0200 | [diff] [blame] | 1597 | |
| 1598 | /* Initialize NS/BSSGP side */ |
| 1599 | f_init_bssgp(); |
| 1600 | |
| 1601 | /* Initialize the PCU interface abstraction */ |
| 1602 | f_init_raw(testcasename()); |
| 1603 | |
| 1604 | /* Establish BSSGP connection to the PCU */ |
| 1605 | f_bssgp_establish(); |
| 1606 | f_bssgp_client_llgmm_assign('FFFFFFFF'O, tlli); |
| 1607 | |
| 1608 | /* Establish an Uplink TBF */ |
| 1609 | ok := f_establish_tbf(rr_imm_ass, ra := ra); |
| 1610 | if (not ok) { |
| 1611 | setverdict(fail, "Failed to establish TBF"); |
| 1612 | f_shutdown(__BFILE__, __LINE__); |
| 1613 | } |
| 1614 | |
| 1615 | /* Make sure we've got an Uplink TBF assignment */ |
| 1616 | f_imm_ass_verify_ul_tbf_ass(rr_imm_ass, ul_tbf_ass, tr_PacketUlSglAssign); |
| 1617 | |
| 1618 | /* Send PACKET RESOURCE REQUEST to upgrade to EGPRS |
| 1619 | * (see 3GPP TS 04.60 "7.1.3.1 Initiation of the Packet resource request procedure") |
| 1620 | */ |
| 1621 | f_tx_rlcmac_ul_block(ts_RLC_UL_CTRL_ACK(valueof(ts_RlcMacUlCtrl_PKT_RES_REQ(tlli, ms_racap))), 0); |
| 1622 | f_rx_rlcmac_dl_block_exp_pkt_ul_ass(dl_block, sched_fn); |
| 1623 | if (dl_block.ctrl.payload.u.ul_assignment.identity.tlli.tlli != tlli) { |
| 1624 | setverdict(fail, "Wrong TLLI ", dl_block.ctrl.payload.u.ul_assignment.identity.tlli, " received vs exp ", tlli); |
| 1625 | f_shutdown(__BFILE__, __LINE__); |
| 1626 | } |
Pau Espin Pedrol | 42acafc | 2020-05-14 15:18:38 +0200 | [diff] [blame] | 1627 | cs_mcs := f_rlcmac_dl_block_get_assigned_ul_cs_mcs(dl_block); |
| 1628 | if (not match(cs_mcs, exp_ul_cs_mcs)) { |
| 1629 | setverdict(fail, "Wrong CS_MCS ", cs_mcs, " received vs exp ", exp_ul_cs_mcs); |
| 1630 | f_shutdown(__BFILE__, __LINE__); |
| 1631 | } |
Pau Espin Pedrol | 02c972d | 2020-05-13 15:56:16 +0200 | [diff] [blame] | 1632 | |
| 1633 | /* Send one UL block (without TLLI since we are in Second-Phase Access) |
| 1634 | and make sure it is ACKED fine */ |
Pau Espin Pedrol | 4cbb960 | 2020-05-14 19:21:49 +0200 | [diff] [blame] | 1635 | f_tx_rlcmac_ul_n_blocks(f_rlcmac_dl_block_get_tfi(dl_block), bsn, 1); /* TODO: send using cs_mcs */ |
Pau Espin Pedrol | 02c972d | 2020-05-13 15:56:16 +0200 | [diff] [blame] | 1636 | |
| 1637 | //f_rx_rlcmac_dl_block_exp_ack_nack(dl_block, sched_fn); |
| 1638 | /* DL ACK/NACK sets poll+rrbp requesting PACKET CONTROL ACK */ |
| 1639 | f_tx_rlcmac_ul_block(ts_RLCMAC_CTRL_ACK(tlli), 0, sched_fn); |
| 1640 | |
| 1641 | /* UL block should be received in SGSN */ |
| 1642 | BSSGP[0].receive(tr_BSSGP_UL_UD(tlli, mp_gb_cfg.cell_id)); |
| 1643 | |
| 1644 | /* Now SGSN sends some DL data, PCU will page on PACCH */ |
| 1645 | BSSGP[0].send(ts_BSSGP_DL_UD(tlli, data)); |
| 1646 | f_rx_rlcmac_dl_block_exp_pkt_dl_ass(dl_block, sched_fn); |
| 1647 | /* DL Ass sets poll+rrbp requesting PACKET CONTROL ACK */ |
| 1648 | f_tx_rlcmac_ul_block(ts_RLCMAC_CTRL_ACK(tlli), 0, sched_fn); |
| 1649 | |
| 1650 | /* After acking the dl assignment, dl tbf goes into FLOW state and PCU will provide DL data when BTS asks for it */ |
Pau Espin Pedrol | 42acafc | 2020-05-14 15:18:38 +0200 | [diff] [blame] | 1651 | f_rx_rlcmac_dl_block_exp_data(dl_block, dl_fn, data, 0, exp_dl_cs_mcs); |
Pau Espin Pedrol | 02c972d | 2020-05-13 15:56:16 +0200 | [diff] [blame] | 1652 | |
| 1653 | /* ACK the DL block */ |
| 1654 | f_acknackdesc_ack_block(ack_nack_desc, dl_block, '1'B); |
| 1655 | f_tx_rlcmac_ul_block(ts_RLCMAC_DL_ACK_NACK(f_rlcmac_dl_block_get_tfi(dl_block), ack_nack_desc), |
| 1656 | 0, f_dl_block_ack_fn(dl_block, dl_fn)); |
| 1657 | |
| 1658 | f_shutdown(__BFILE__, __LINE__, final := true); |
| 1659 | } |
Pau Espin Pedrol | 8dd59fb | 2020-04-29 15:08:16 +0200 | [diff] [blame] | 1660 | |
| 1661 | testcase TC_mo_ping_pong_with_ul_racap() runs on RAW_PCU_Test_CT { |
| 1662 | var MultislotCap_GPRS mscap_gprs := { |
| 1663 | gprsmultislotclass := '00011'B, |
| 1664 | gprsextendeddynalloccap := '0'B |
| 1665 | }; |
| 1666 | var MSRadioAccessCapabilityV ms_racap := { valueof(ts_RaCapRec('0001'B /* E-GSM */, mscap_gprs, omit)) }; |
Pau Espin Pedrol | 42acafc | 2020-05-14 15:18:38 +0200 | [diff] [blame] | 1667 | var CodingScheme exp_ul_cs_mcs := f_rlcmac_block_int2cs_mcs(g_mcs_initial_ul, false); |
| 1668 | var CodingScheme exp_dl_cs_mcs := CS_2; |
Pau Espin Pedrol | 8dd59fb | 2020-04-29 15:08:16 +0200 | [diff] [blame] | 1669 | |
Pau Espin Pedrol | 42acafc | 2020-05-14 15:18:38 +0200 | [diff] [blame] | 1670 | f_TC_mo_ping_pong_2phase_access(ms_racap, exp_ul_cs_mcs, exp_dl_cs_mcs); |
| 1671 | } |
| 1672 | |
| 1673 | testcase TC_mo_ping_pong_with_ul_racap_egprs_only() runs on RAW_PCU_Test_CT { |
| 1674 | /* Initialize the PCU interface abstraction with EGPRS-only */ |
| 1675 | g_egprs_only := true; |
| 1676 | |
| 1677 | var MultislotCap_GPRS mscap_gprs := { |
| 1678 | gprsmultislotclass := '00011'B, |
| 1679 | gprsextendeddynalloccap := '0'B |
| 1680 | }; |
| 1681 | var MultislotCap_EGPRS mscap_egprs := { |
| 1682 | egprsmultislotclass := '00011'B, |
| 1683 | egprsextendeddynalloccap := '0'B |
| 1684 | }; |
| 1685 | var MSRadioAccessCapabilityV ms_racap := { valueof(ts_RaCapRec('0001'B /* E-GSM */, mscap_gprs, mscap_egprs)) }; |
| 1686 | var CodingScheme exp_ul_cs_mcs := f_rlcmac_block_int2cs_mcs(g_mcs_initial_ul, true); |
| 1687 | var CodingScheme exp_dl_cs_mcs := MCS_1; |
| 1688 | |
| 1689 | f_TC_mo_ping_pong_2phase_access(ms_racap, exp_ul_cs_mcs, exp_dl_cs_mcs); |
Pau Espin Pedrol | 8dd59fb | 2020-04-29 15:08:16 +0200 | [diff] [blame] | 1690 | } |
| 1691 | |
Pau Espin Pedrol | 0c0bf87 | 2020-05-14 15:50:49 +0200 | [diff] [blame] | 1692 | testcase TC_force_two_phase_access() runs on RAW_PCU_Test_CT { |
| 1693 | /* Configure PCU to force two phase access */ |
| 1694 | g_force_two_phase_access := true; |
| 1695 | |
| 1696 | var MultislotCap_GPRS mscap_gprs := { |
| 1697 | gprsmultislotclass := '00011'B, |
| 1698 | gprsextendeddynalloccap := '0'B |
| 1699 | }; |
| 1700 | var MSRadioAccessCapabilityV ms_racap := { valueof(ts_RaCapRec('0001'B /* E-GSM */, mscap_gprs, omit)) }; |
| 1701 | var CodingScheme exp_ul_cs_mcs := f_rlcmac_block_int2cs_mcs(g_mcs_initial_ul, false); |
| 1702 | var CodingScheme exp_dl_cs_mcs := CS_2; |
| 1703 | |
| 1704 | f_TC_mo_ping_pong_2phase_access(ms_racap, exp_ul_cs_mcs, exp_dl_cs_mcs); |
| 1705 | } |
| 1706 | |
Pau Espin Pedrol | 8dd59fb | 2020-04-29 15:08:16 +0200 | [diff] [blame] | 1707 | /* Test scenario where SGSN wants to send some data against MS and it is |
| 1708 | * answered by the MS on PDCH, so TBFs for downlink and later for uplink are created. |
| 1709 | */ |
| 1710 | private function f_TC_mt_ping_pong(template (omit) MSRadioAccessCapabilityV_BSSGP ms_racap := omit, template (present) CodingScheme exp_cs_mcs := ?) runs on RAW_PCU_Test_CT { |
| 1711 | var GsmRrMessage rr_imm_ass; |
| 1712 | var PacketUlAssign ul_tbf_ass; |
| 1713 | var PacketDlAssign dl_tbf_ass; |
| 1714 | var RlcmacDlBlock dl_block; |
| 1715 | var PCUIF_Message pcu_msg; |
| 1716 | var octetstring data := f_rnd_octstring(10); |
| 1717 | var boolean ok; |
| 1718 | var uint32_t sched_fn; |
Vadim Yanitskiy | b6733a6 | 2020-05-10 14:39:00 +0700 | [diff] [blame] | 1719 | var uint32_t dl_fn; |
Pau Espin Pedrol | 8dd59fb | 2020-04-29 15:08:16 +0200 | [diff] [blame] | 1720 | var OCT4 tlli := '00000001'O; |
Pau Espin Pedrol | 4cbb960 | 2020-05-14 19:21:49 +0200 | [diff] [blame] | 1721 | var uint14_t bsn := 0; |
Pau Espin Pedrol | 8dd59fb | 2020-04-29 15:08:16 +0200 | [diff] [blame] | 1722 | var AckNackDescription ack_nack_desc := valueof(t_AckNackDescription_init); |
| 1723 | |
| 1724 | /* Initialize NS/BSSGP side */ |
| 1725 | f_init_bssgp(); |
| 1726 | |
| 1727 | /* Initialize the PCU interface abstraction */ |
| 1728 | f_init_raw(testcasename()); |
| 1729 | |
| 1730 | /* Establish BSSGP connection to the PCU */ |
| 1731 | f_bssgp_establish(); |
| 1732 | f_bssgp_client_llgmm_assign('FFFFFFFF'O, tlli); |
| 1733 | |
| 1734 | /* SGSN sends some DL data, PCU will page on CCCH (PCH) */ |
| 1735 | BSSGP[0].send(ts_BSSGP_DL_UD(tlli, data, ms_racap)); |
| 1736 | f_pcuif_rx_pch_imm_tbf_ass(rr_imm_ass); |
| 1737 | |
Vadim Yanitskiy | 2e213ae | 2020-05-06 22:26:17 +0700 | [diff] [blame] | 1738 | /* Make sure we've got a Downlink TBF assignment */ |
| 1739 | f_imm_ass_verify_dl_tbf_ass(rr_imm_ass, dl_tbf_ass); |
Pau Espin Pedrol | 8dd59fb | 2020-04-29 15:08:16 +0200 | [diff] [blame] | 1740 | |
| 1741 | /* Wait timer X2002 and DL block is available after CCCH IMM ASS: */ |
| 1742 | f_sleep(X2002); |
Vadim Yanitskiy | b6733a6 | 2020-05-10 14:39:00 +0700 | [diff] [blame] | 1743 | f_rx_rlcmac_dl_block_exp_data(dl_block, dl_fn, data, 0, exp_cs_mcs); |
Pau Espin Pedrol | 8dd59fb | 2020-04-29 15:08:16 +0200 | [diff] [blame] | 1744 | |
| 1745 | /* ACK the DL block */ |
| 1746 | f_acknackdesc_ack_block(ack_nack_desc, dl_block, '1'B); |
Vadim Yanitskiy | b6733a6 | 2020-05-10 14:39:00 +0700 | [diff] [blame] | 1747 | f_tx_rlcmac_ul_block(ts_RLCMAC_DL_ACK_NACK(f_rlcmac_dl_block_get_tfi(dl_block), ack_nack_desc), |
| 1748 | 0, f_dl_block_ack_fn(dl_block, dl_fn)); |
Pau Espin Pedrol | 8dd59fb | 2020-04-29 15:08:16 +0200 | [diff] [blame] | 1749 | |
| 1750 | /* Now MS wants to answer the DL data, Establish an Uplink TBF */ |
| 1751 | ok := f_establish_tbf(rr_imm_ass); |
| 1752 | if (not ok) { |
| 1753 | setverdict(fail, "Failed to establish TBF"); |
Vadim Yanitskiy | 91f8a09 | 2020-05-06 21:41:05 +0700 | [diff] [blame] | 1754 | f_shutdown(__BFILE__, __LINE__); |
Pau Espin Pedrol | 8dd59fb | 2020-04-29 15:08:16 +0200 | [diff] [blame] | 1755 | } |
Vadim Yanitskiy | 2e213ae | 2020-05-06 22:26:17 +0700 | [diff] [blame] | 1756 | |
| 1757 | /* Make sure we've got an Uplink TBF assignment */ |
| 1758 | f_imm_ass_verify_ul_tbf_ass(rr_imm_ass, ul_tbf_ass); |
Pau Espin Pedrol | 8dd59fb | 2020-04-29 15:08:16 +0200 | [diff] [blame] | 1759 | |
Pau Espin Pedrol | 4aac3d0 | 2020-05-13 15:13:49 +0200 | [diff] [blame] | 1760 | /* Send one UL block (with TLLI since we are in One-Phase Access |
| 1761 | contention resoultion) and make sure it is ACKED fine */ |
Pau Espin Pedrol | 4cbb960 | 2020-05-14 19:21:49 +0200 | [diff] [blame] | 1762 | f_tx_rlcmac_ul_n_blocks(ul_tbf_ass.dynamic.tfi_assignment, bsn, 1, tlli); |
Pau Espin Pedrol | 8dd59fb | 2020-04-29 15:08:16 +0200 | [diff] [blame] | 1763 | f_rx_rlcmac_dl_block_exp_ack_nack(dl_block, sched_fn); |
| 1764 | /* DL ACK/NACK sets poll+rrbp requesting PACKET CONTROL ACK */ |
| 1765 | f_tx_rlcmac_ul_block(ts_RLCMAC_CTRL_ACK(tlli), 0, sched_fn); |
| 1766 | |
| 1767 | /* UL block should be received in SGSN */ |
| 1768 | BSSGP[0].receive(tr_BSSGP_UL_UD(tlli, mp_gb_cfg.cell_id)); |
Vadim Yanitskiy | 91f8a09 | 2020-05-06 21:41:05 +0700 | [diff] [blame] | 1769 | |
| 1770 | f_shutdown(__BFILE__, __LINE__, final := true); |
Pau Espin Pedrol | 8dd59fb | 2020-04-29 15:08:16 +0200 | [diff] [blame] | 1771 | } |
| 1772 | |
| 1773 | testcase TC_mt_ping_pong() runs on RAW_PCU_Test_CT { |
| 1774 | var CodingScheme exp_cs_mcs := CS_1; |
| 1775 | f_TC_mt_ping_pong(omit, exp_cs_mcs); |
| 1776 | } |
| 1777 | |
| 1778 | /* TC_mt_ping_pong, but DL-UNITDATA contains RA Access capability with (M)CS |
| 1779 | /* information about the MS */ |
| 1780 | testcase TC_mt_ping_pong_with_dl_racap() runs on RAW_PCU_Test_CT { |
| 1781 | var MultislotCap_GPRS_BSSGP mscap_gprs := { |
| 1782 | gprsmultislotclass := '00011'B, |
| 1783 | gprsextendeddynalloccap := '0'B |
| 1784 | } ; |
| 1785 | var MSRadioAccessCapabilityV_BSSGP ms_racap := { valueof(ts_RaCapRec_BSSGP('0001'B /* E-GSM */, mscap_gprs, omit)) }; |
| 1786 | var CodingScheme exp_cs_mcs := CS_2; |
| 1787 | f_TC_mt_ping_pong(ms_racap, exp_cs_mcs); |
| 1788 | } |
| 1789 | |
Pau Espin Pedrol | a416cb8 | 2020-05-15 14:09:02 +0200 | [diff] [blame^] | 1790 | /* Verify that if PCU doesn't get one of the intermediate UL data blocks in a UL |
| 1791 | * TBF, it will request retransmission through UL ACK/NACK (with missing block |
| 1792 | * in its bitmap) when CV=0 is received (and hence it knows no more data is to |
| 1793 | * be transferred). |
| 1794 | */ |
| 1795 | testcase TC_ul_intermediate_retrans() runs on RAW_PCU_Test_CT { |
| 1796 | var GsmRrMessage rr_imm_ass; |
| 1797 | var PacketUlAssign ul_tbf_ass; |
| 1798 | var RlcmacDlBlock dl_block; |
| 1799 | var template (value) RlcmacUlBlock ul_data; |
| 1800 | var boolean ok; |
| 1801 | var uint32_t sched_fn; |
| 1802 | var OCT4 tlli := '00000001'O; |
| 1803 | var uint14_t bsn := 5; |
| 1804 | var PDU_BSSGP bssgp_pdu; |
| 1805 | var octetstring total_payload; |
| 1806 | var octetstring payload; |
| 1807 | var octetstring lost_payload; |
| 1808 | var integer padding_len; |
| 1809 | var uint5_t tfi; |
| 1810 | |
| 1811 | /* Initialize NS/BSSGP side */ |
| 1812 | f_init_bssgp(); |
| 1813 | |
| 1814 | /* Initialize the PCU interface abstraction */ |
| 1815 | f_init_raw(testcasename()); |
| 1816 | |
| 1817 | /* Establish BSSGP connection to the PCU */ |
| 1818 | f_bssgp_establish(); |
| 1819 | f_bssgp_client_llgmm_assign('FFFFFFFF'O, tlli); |
| 1820 | |
| 1821 | /* Establish an Uplink TBF */ |
| 1822 | ok := f_establish_tbf(rr_imm_ass); |
| 1823 | if (not ok) { |
| 1824 | setverdict(fail, "Failed to establish TBF"); |
| 1825 | f_shutdown(__BFILE__, __LINE__); |
| 1826 | } |
| 1827 | /* Make sure we've got an Uplink TBF assignment */ |
| 1828 | f_imm_ass_verify_ul_tbf_ass(rr_imm_ass, ul_tbf_ass); |
| 1829 | tfi := ul_tbf_ass.dynamic.tfi_assignment; |
| 1830 | |
| 1831 | /* Send one UL block (with TLLI since we are in One-Phase Access |
| 1832 | contention resoultion) and make sure it is ACKED fine. */ |
| 1833 | payload := f_rnd_octstring(16); /* 16 bytes fills the llc block (because TLLI takes 4 bytes) */ |
| 1834 | ul_data := t_RLCMAC_UL_DATA_TLLI( |
| 1835 | tfi := tfi, |
| 1836 | cv := 15, /* Set CV = 15 to signal there's still more than BS_CV_MAX blocks to be sent */ |
| 1837 | bsn := 0, |
| 1838 | blocks := { valueof(t_RLCMAC_LLCBLOCK(payload)) }, |
| 1839 | tlli := tlli); |
| 1840 | |
| 1841 | f_tx_rlcmac_ul_block(ul_data, 0); |
| 1842 | f_rx_rlcmac_dl_block_exp_ack_nack(dl_block, sched_fn); |
| 1843 | /* DL ACK/NACK sets poll+rrbp requesting PACKET CONTROL ACK */ |
| 1844 | f_tx_rlcmac_ul_block(ts_RLCMAC_CTRL_ACK(tlli), 0, sched_fn); |
| 1845 | total_payload := payload; |
| 1846 | |
| 1847 | /* Send 2 packets, skip 1 (inc bsn) and send another one */ |
| 1848 | payload := f_rnd_octstring(20); /* 20 bytes fills the CS-1 llc block */ |
| 1849 | ul_data := t_RLCMAC_UL_DATA(tfi := tfi, cv := 15, bsn := 1, blocks := {t_RLCMAC_LLCBLOCK(payload)}); |
| 1850 | f_tx_rlcmac_ul_block(ul_data, 0); |
| 1851 | total_payload := total_payload & payload; |
| 1852 | |
| 1853 | payload := f_rnd_octstring(20); /* 20 bytes fills the CS-1 llc block */ |
| 1854 | ul_data := t_RLCMAC_UL_DATA(tfi := tfi, cv := 15, bsn := 2, blocks := {t_RLCMAC_LLCBLOCK(payload)}); |
| 1855 | f_tx_rlcmac_ul_block(ul_data, 0); |
| 1856 | total_payload := total_payload & payload; |
| 1857 | |
| 1858 | lost_payload := f_rnd_octstring(20); /* LOST PAYLOAD bsn=3, will be retransmitted, next bsn is increased +2 */ |
| 1859 | total_payload := total_payload & lost_payload; |
| 1860 | |
| 1861 | payload := f_rnd_octstring(20); /* 20 bytes fills the CS-1 llc block */ |
| 1862 | ul_data := t_RLCMAC_UL_DATA(tfi := tfi, cv := 15, bsn := 4, blocks := {t_RLCMAC_LLCBLOCK(payload)}); |
| 1863 | f_tx_rlcmac_ul_block(ul_data, 0); |
| 1864 | total_payload := total_payload & payload; |
| 1865 | |
| 1866 | /* Send enough blocks to finish the transmission (since we were sending BSN=15, send BS_CV_MAX packets) */ |
| 1867 | total_payload := total_payload & f_tx_rlcmac_ul_n_blocks(ul_tbf_ass.dynamic.tfi_assignment, bsn, g_bs_cv_max); |
| 1868 | |
| 1869 | /* On CV=0, we'll receive a UL ACK asking about missing block */ |
| 1870 | f_rx_rlcmac_dl_block_exp_ack_nack(dl_block, sched_fn); |
| 1871 | /* TODO: check ack ack bitmap (URBB) */ |
| 1872 | ul_data := t_RLCMAC_UL_DATA(tfi := tfi, cv := 15, bsn := 3, blocks := {t_RLCMAC_LLCBLOCK(lost_payload)}); |
| 1873 | f_tx_rlcmac_ul_block(ul_data, 0); |
| 1874 | |
| 1875 | /* Now final ack is recieved */ |
| 1876 | f_rx_rlcmac_dl_block_exp_ack_nack(dl_block, sched_fn); |
| 1877 | /* DL ACK/NACK sets poll+rrbp requesting PACKET CONTROL ACK */ |
| 1878 | f_tx_rlcmac_ul_block(ts_RLCMAC_CTRL_ACK(tlli), 0, sched_fn); |
| 1879 | |
| 1880 | /* receive one message on BSSGP with all aggregated data in payload: */ |
| 1881 | BSSGP[0].receive(tr_BSSGP_UL_UD(tlli, mp_gb_cfg.cell_id, total_payload)); |
| 1882 | } |
| 1883 | |
Pau Espin Pedrol | 8dd59fb | 2020-04-29 15:08:16 +0200 | [diff] [blame] | 1884 | /* Verify that if PCU doesn't get an ACK for first DL block after IMM ASS, it |
| 1885 | * will retry by retransmitting both the IMM ASS + DL block after poll (ack) |
| 1886 | * timeout occurs (specified by sent RRBP on DL block). */ |
| 1887 | testcase TC_imm_ass_dl_block_retrans() runs on RAW_PCU_Test_CT { |
| 1888 | var GsmRrMessage rr_imm_ass; |
| 1889 | var PacketDlAssign dl_tbf_ass; |
| 1890 | var RlcmacDlBlock dl_block; |
| 1891 | var octetstring data := f_rnd_octstring(10); |
| 1892 | var boolean ok; |
Vadim Yanitskiy | b6733a6 | 2020-05-10 14:39:00 +0700 | [diff] [blame] | 1893 | var uint32_t dl_fn; |
Pau Espin Pedrol | 8dd59fb | 2020-04-29 15:08:16 +0200 | [diff] [blame] | 1894 | var OCT4 tlli := '00000001'O; |
| 1895 | var AckNackDescription ack_nack_desc := valueof(t_AckNackDescription_init); |
| 1896 | |
| 1897 | /* Initialize NS/BSSGP side */ |
| 1898 | f_init_bssgp(); |
| 1899 | |
| 1900 | /* Initialize the PCU interface abstraction */ |
| 1901 | f_init_raw(testcasename()); |
| 1902 | |
| 1903 | /* Establish BSSGP connection to the PCU */ |
| 1904 | f_bssgp_establish(); |
| 1905 | f_bssgp_client_llgmm_assign('FFFFFFFF'O, tlli); |
| 1906 | |
| 1907 | /* SGSN sends some DL data, PCU will page on CCCH (PCH) */ |
| 1908 | BSSGP[0].send(ts_BSSGP_DL_UD(tlli, data)); |
| 1909 | f_pcuif_rx_pch_imm_tbf_ass(rr_imm_ass); |
Vadim Yanitskiy | 2e213ae | 2020-05-06 22:26:17 +0700 | [diff] [blame] | 1910 | |
| 1911 | /* Make sure we've got a Downlink TBF assignment */ |
| 1912 | f_imm_ass_verify_dl_tbf_ass(rr_imm_ass, dl_tbf_ass); |
Pau Espin Pedrol | 8dd59fb | 2020-04-29 15:08:16 +0200 | [diff] [blame] | 1913 | |
| 1914 | /* Wait timer X2002 and DL block is available after CCCH IMM ASS: */ |
| 1915 | f_sleep(X2002); |
Vadim Yanitskiy | b6733a6 | 2020-05-10 14:39:00 +0700 | [diff] [blame] | 1916 | f_rx_rlcmac_dl_block_exp_data(dl_block, dl_fn, data, 0); |
Pau Espin Pedrol | 8dd59fb | 2020-04-29 15:08:16 +0200 | [diff] [blame] | 1917 | |
| 1918 | /* Now we don't ack the dl block (emulate MS failed receiveing IMM ASS |
| 1919 | * or GPRS DL, or DL ACK was lost for some reason). As a result, PCU |
| 1920 | * should retrigger IMM ASS + GPRS DL procedure after poll timeout. */ |
| 1921 | f_pcuif_rx_pch_imm_tbf_ass(rr_imm_ass); |
Vadim Yanitskiy | 2e213ae | 2020-05-06 22:26:17 +0700 | [diff] [blame] | 1922 | |
| 1923 | /* Make sure we've got a Downlink TBF assignment */ |
| 1924 | f_imm_ass_verify_dl_tbf_ass(rr_imm_ass, dl_tbf_ass); |
| 1925 | |
Pau Espin Pedrol | 8dd59fb | 2020-04-29 15:08:16 +0200 | [diff] [blame] | 1926 | /* Wait timer X2002 and DL block is available after CCCH IMM ASS: */ |
| 1927 | f_sleep(X2002); |
Vadim Yanitskiy | b6733a6 | 2020-05-10 14:39:00 +0700 | [diff] [blame] | 1928 | f_rx_rlcmac_dl_block_exp_data(dl_block, dl_fn, data, 0); |
Pau Espin Pedrol | 8dd59fb | 2020-04-29 15:08:16 +0200 | [diff] [blame] | 1929 | |
| 1930 | /* ACK the DL block */ |
| 1931 | f_acknackdesc_ack_block(ack_nack_desc, dl_block, '1'B); |
Vadim Yanitskiy | b6733a6 | 2020-05-10 14:39:00 +0700 | [diff] [blame] | 1932 | f_tx_rlcmac_ul_block(ts_RLCMAC_DL_ACK_NACK(f_rlcmac_dl_block_get_tfi(dl_block), ack_nack_desc), |
| 1933 | 0, f_dl_block_ack_fn(dl_block, dl_fn)); |
Vadim Yanitskiy | 91f8a09 | 2020-05-06 21:41:05 +0700 | [diff] [blame] | 1934 | |
| 1935 | f_shutdown(__BFILE__, __LINE__, final := true); |
Pau Espin Pedrol | 8dd59fb | 2020-04-29 15:08:16 +0200 | [diff] [blame] | 1936 | } |
| 1937 | |
Vadim Yanitskiy | 71238c1 | 2020-05-11 03:48:06 +0700 | [diff] [blame] | 1938 | /* Verify scheduling of multiple Downlink data blocks during one RRBP. */ |
| 1939 | testcase TC_dl_flow_more_blocks() runs on RAW_PCU_Test_CT { |
| 1940 | var AckNackDescription ack_nack_desc := valueof(t_AckNackDescription_init); |
| 1941 | var octetstring data := f_rnd_octstring(16); |
| 1942 | var OCT4 tlli := f_rnd_octstring(4); |
| 1943 | var PacketDlAssign dl_tbf_ass; |
| 1944 | var GsmRrMessage rr_imm_ass; |
| 1945 | var RlcmacDlBlock dl_block; |
| 1946 | var uint32_t ack_fn; |
| 1947 | var uint32_t fn; |
| 1948 | timer T := 5.0; |
| 1949 | |
| 1950 | /* Initialize NS/BSSGP side */ |
| 1951 | f_init_bssgp(); |
| 1952 | |
| 1953 | /* Initialize the PCU interface abstraction */ |
| 1954 | f_init_raw(testcasename()); |
| 1955 | |
| 1956 | /* Establish BSSGP connection to the PCU */ |
| 1957 | f_bssgp_establish(); |
| 1958 | f_bssgp_client_llgmm_assign('FFFFFFFF'O, tlli); |
| 1959 | |
| 1960 | /* SGSN sends some DL data, PCU will page on CCCH (PCH) */ |
| 1961 | BSSGP[0].send(ts_BSSGP_DL_UD(tlli, data)); |
| 1962 | f_pcuif_rx_pch_imm_tbf_ass(rr_imm_ass); |
| 1963 | |
| 1964 | /* Make sure we've got a Downlink TBF assignment with DL TFI */ |
| 1965 | f_imm_ass_verify_dl_tbf_ass(rr_imm_ass, dl_tbf_ass); |
| 1966 | if (not ispresent(dl_tbf_ass.group1)) { |
| 1967 | setverdict(fail, "Immediate Assignment contains no DL TFI"); |
| 1968 | f_shutdown(__BFILE__, __LINE__); |
| 1969 | } |
| 1970 | |
| 1971 | /* Get DL TFI from received Downlink TBF assignment */ |
| 1972 | var uint5_t tfi := dl_tbf_ass.group1.tfi_assignment; |
| 1973 | |
| 1974 | /* Wait timer X2002 and DL block is available after CCCH IMM ASS */ |
| 1975 | f_sleep(X2002); |
| 1976 | |
| 1977 | /* Expect the first (GPRS DL) block with bsn=0 and rrbp_valid=1 */ |
| 1978 | f_rx_rlcmac_dl_block_exp_data(dl_block, fn, data, 0); |
| 1979 | f_acknackdesc_ack_block(ack_nack_desc, dl_block); |
| 1980 | |
| 1981 | /* TDMA frame number on which we are supposed to send the ACK */ |
| 1982 | ack_fn := f_dl_block_ack_fn(dl_block, fn); |
| 1983 | |
| 1984 | /* SGSN sends more blocks during the indicated RRBP */ |
| 1985 | for (var integer bsn := 1; bsn < 63; bsn := bsn + 1) { |
| 1986 | data := f_rnd_octstring(16); /* Random LLC data */ |
| 1987 | BSSGP[0].send(ts_BSSGP_DL_UD(tlli, data)); |
| 1988 | |
| 1989 | f_rx_rlcmac_dl_block_exp_data(dl_block, fn, data, bsn); |
| 1990 | |
| 1991 | /* Make sure this block has the same TFI as was assigned |
| 1992 | * FIXME: this is only valid for GPRS, not EGPRS. */ |
| 1993 | if (dl_block.data.mac_hdr.hdr_ext.tfi != tfi) { |
| 1994 | setverdict(fail, "Rx DL data block with unexpected TFI: ", |
| 1995 | dl_block.data.mac_hdr.hdr_ext.tfi); |
| 1996 | f_shutdown(__BFILE__, __LINE__); |
| 1997 | } |
| 1998 | |
| 1999 | /* Keep Ack/Nack description updated */ |
| 2000 | f_acknackdesc_ack_block(ack_nack_desc, dl_block); |
| 2001 | |
| 2002 | /* Break if this is the end of RRBP */ |
| 2003 | if (fn == ack_fn) { |
| 2004 | ack_nack_desc.final_ack := '1'B; |
| 2005 | break; |
| 2006 | } |
| 2007 | } |
| 2008 | |
| 2009 | /* This is the end of RRBP, send Packet Downlink Ack/Nack */ |
| 2010 | f_tx_rlcmac_ul_block(ts_RLCMAC_DL_ACK_NACK(tfi, ack_nack_desc), fn := fn); |
| 2011 | |
| 2012 | /* Make sure that the next block (after the Ack) is dummy */ |
| 2013 | f_rx_rlcmac_dl_block_exp_dummy(dl_block); |
| 2014 | |
| 2015 | f_shutdown(__BFILE__, __LINE__, final := true); |
| 2016 | } |
| 2017 | |
Vadim Yanitskiy | 91f8a09 | 2020-05-06 21:41:05 +0700 | [diff] [blame] | 2018 | private function f_pkt_paging_match_imsi(in PacketPagingReq req, hexstring imsi) |
| 2019 | runs on RAW_PCU_Test_CT { |
Pau Espin Pedrol | 8dd59fb | 2020-04-29 15:08:16 +0200 | [diff] [blame] | 2020 | var MobileIdentityLV_Paging mi_lv := req.repeated_pageinfo.cs.mobile_identity; |
| 2021 | var MobileIdentityV mi := dec_MobileIdentityV(mi_lv.mobile_id); |
| 2022 | |
| 2023 | if (mi_lv.len != 8) { /* 8 octets: type of ID (3 bits) + even/odd flag (1 bit) + 15 BCD-encoded digits (60 bits) */ |
| 2024 | setverdict(fail, "Mobile Identity length mismatch: ", |
| 2025 | "expected: 8, got: ", mi_lv.len); |
Vadim Yanitskiy | 91f8a09 | 2020-05-06 21:41:05 +0700 | [diff] [blame] | 2026 | f_shutdown(__BFILE__, __LINE__); |
Pau Espin Pedrol | 8dd59fb | 2020-04-29 15:08:16 +0200 | [diff] [blame] | 2027 | } |
| 2028 | |
| 2029 | /* Make sure MI contains IMSI before referencing it */ |
| 2030 | if (mi.typeOfIdentity != '001'B) { |
| 2031 | setverdict(fail, "Mobile Identity must be of type IMSI ('001'B), ", |
| 2032 | "got: ", mi.typeOfIdentity); |
Vadim Yanitskiy | 91f8a09 | 2020-05-06 21:41:05 +0700 | [diff] [blame] | 2033 | f_shutdown(__BFILE__, __LINE__); |
Pau Espin Pedrol | 8dd59fb | 2020-04-29 15:08:16 +0200 | [diff] [blame] | 2034 | } else if (mi.oddEvenInd_identity.imsi.digits != imsi) { |
| 2035 | setverdict(fail, "Mobile Identity contains unexpected IMSI, ", |
| 2036 | "expected: ", imsi, " got: ", mi.oddEvenInd_identity.imsi.digits); |
Vadim Yanitskiy | 91f8a09 | 2020-05-06 21:41:05 +0700 | [diff] [blame] | 2037 | f_shutdown(__BFILE__, __LINE__); |
Pau Espin Pedrol | 8dd59fb | 2020-04-29 15:08:16 +0200 | [diff] [blame] | 2038 | } |
| 2039 | } |
| 2040 | |
Vadim Yanitskiy | 91f8a09 | 2020-05-06 21:41:05 +0700 | [diff] [blame] | 2041 | private function f_pkt_paging_match_tmsi(in PacketPagingReq req, template GsmTmsi tmsi) |
| 2042 | runs on RAW_PCU_Test_CT { |
Pau Espin Pedrol | 8dd59fb | 2020-04-29 15:08:16 +0200 | [diff] [blame] | 2043 | if (not match(req.repeated_pageinfo.cs.tmsi, tmsi)) { |
| 2044 | setverdict(fail, "Mobile Identity (TMSI/P-TMSI) mismatch: ", |
| 2045 | "expected: ", tmsi, "got: ", req.repeated_pageinfo.cs.tmsi); |
Vadim Yanitskiy | 91f8a09 | 2020-05-06 21:41:05 +0700 | [diff] [blame] | 2046 | f_shutdown(__BFILE__, __LINE__); |
Pau Espin Pedrol | 8dd59fb | 2020-04-29 15:08:16 +0200 | [diff] [blame] | 2047 | } |
| 2048 | } |
| 2049 | |
| 2050 | /* Test CS paging over the BTS<->PCU socket. |
| 2051 | * When a (class B or C, not A) MS has an active TBF (or is on the PDCH), the MS can not react on CS paging over CCCH. |
| 2052 | * Paging should be send on the PACCH. |
| 2053 | * |
| 2054 | * 1. Send a Paging Request over PCU socket. |
| 2055 | * 2. Send a Ready-To-Send message over PCU socket |
| 2056 | * 3. Expect a Paging Frame |
| 2057 | */ |
| 2058 | testcase TC_paging_cs_from_bts() runs on RAW_PCU_Test_CT { |
| 2059 | var GsmRrMessage rr_imm_ass; |
| 2060 | var PacketUlAssign ul_tbf_ass; |
| 2061 | var RlcmacDlBlock dl_block; |
| 2062 | var boolean ok; |
| 2063 | var OCT4 tlli := '00000001'O; |
| 2064 | var MobileIdentityLV mi; |
| 2065 | var octetstring mi_enc_lv; |
| 2066 | var hexstring imsi := f_gen_imsi(42); |
| 2067 | |
| 2068 | /* Initialize NS/BSSGP side */ |
| 2069 | f_init_bssgp(); |
| 2070 | |
| 2071 | /* Initialize the PCU interface abstraction */ |
| 2072 | f_init_raw(testcasename()); |
| 2073 | |
| 2074 | /* Establish BSSGP connection to the PCU */ |
| 2075 | f_bssgp_establish(); |
| 2076 | f_bssgp_client_llgmm_assign('FFFFFFFF'O, tlli); |
| 2077 | |
| 2078 | /* Establish an Uplink TBF */ |
| 2079 | ok := f_establish_tbf(rr_imm_ass); |
| 2080 | if (not ok) { |
| 2081 | setverdict(fail, "Failed to establish TBF"); |
Vadim Yanitskiy | 91f8a09 | 2020-05-06 21:41:05 +0700 | [diff] [blame] | 2082 | f_shutdown(__BFILE__, __LINE__); |
Pau Espin Pedrol | 8dd59fb | 2020-04-29 15:08:16 +0200 | [diff] [blame] | 2083 | } |
| 2084 | |
Vadim Yanitskiy | 2e213ae | 2020-05-06 22:26:17 +0700 | [diff] [blame] | 2085 | /* Make sure we've got an Uplink TBF assignment */ |
| 2086 | f_imm_ass_verify_ul_tbf_ass(rr_imm_ass, ul_tbf_ass); |
Pau Espin Pedrol | 8dd59fb | 2020-04-29 15:08:16 +0200 | [diff] [blame] | 2087 | |
| 2088 | /* build mobile Identity */ |
| 2089 | mi := valueof(ts_MI_IMSI_LV(imsi)); |
| 2090 | mi_enc_lv := enc_MobileIdentityLV(mi); |
| 2091 | /* Send paging request */ |
| 2092 | BTS.send(ts_PCUIF_PAG_REQ(bts_nr := 0, id_lv := mi_enc_lv, chan_needed := 0, |
| 2093 | sapi :=PCU_IF_SAPI_PDTCH)); |
| 2094 | |
| 2095 | /* Receive it on BTS side towards MS */ |
| 2096 | f_rx_rlcmac_dl_block_exp_pkt_pag_req(dl_block); |
| 2097 | |
| 2098 | /* Make sure that Packet Paging Request contains the same IMSI */ |
| 2099 | f_pkt_paging_match_imsi(dl_block.ctrl.payload.u.paging, imsi); |
| 2100 | |
Vadim Yanitskiy | 91f8a09 | 2020-05-06 21:41:05 +0700 | [diff] [blame] | 2101 | f_shutdown(__BFILE__, __LINE__, final := true); |
Pau Espin Pedrol | 8dd59fb | 2020-04-29 15:08:16 +0200 | [diff] [blame] | 2102 | } |
| 2103 | |
| 2104 | /* Test CS paging over Gb (SGSN->PCU->BTS[PDCH]). |
| 2105 | */ |
| 2106 | private function f_tc_paging_cs_from_sgsn(Nsvci bvci, boolean use_ptmsi := false) |
| 2107 | runs on RAW_PCU_Test_CT { |
| 2108 | var GsmRrMessage rr_imm_ass; |
| 2109 | var PacketUlAssign ul_tbf_ass; |
| 2110 | var RlcmacDlBlock dl_block; |
| 2111 | var boolean ok; |
| 2112 | var OCT4 tlli := '00000001'O; |
| 2113 | var hexstring imsi := f_gen_imsi(42); |
| 2114 | var GsmTmsi tmsi; |
| 2115 | |
| 2116 | /* Initialize NS/BSSGP side */ |
| 2117 | f_init_bssgp(); |
| 2118 | |
| 2119 | /* Initialize the PCU interface abstraction */ |
| 2120 | f_init_raw(testcasename()); |
| 2121 | |
| 2122 | /* Establish BSSGP connection to the PCU */ |
| 2123 | f_bssgp_establish(); |
| 2124 | f_bssgp_client_llgmm_assign('FFFFFFFF'O, tlli); |
| 2125 | |
| 2126 | /* Establish an Uplink TBF */ |
| 2127 | ok := f_establish_tbf(rr_imm_ass); |
| 2128 | if (not ok) { |
| 2129 | setverdict(fail, "Failed to establish TBF"); |
Vadim Yanitskiy | 91f8a09 | 2020-05-06 21:41:05 +0700 | [diff] [blame] | 2130 | f_shutdown(__BFILE__, __LINE__); |
Pau Espin Pedrol | 8dd59fb | 2020-04-29 15:08:16 +0200 | [diff] [blame] | 2131 | } |
| 2132 | |
Vadim Yanitskiy | 2e213ae | 2020-05-06 22:26:17 +0700 | [diff] [blame] | 2133 | /* Make sure we've got an Uplink TBF assignment */ |
| 2134 | f_imm_ass_verify_ul_tbf_ass(rr_imm_ass, ul_tbf_ass); |
Pau Espin Pedrol | 8dd59fb | 2020-04-29 15:08:16 +0200 | [diff] [blame] | 2135 | |
| 2136 | /* Send paging request with or without TMSI */ |
| 2137 | if (use_ptmsi) { |
| 2138 | tmsi := oct2int(f_rnd_octstring(4)); /* Random P-TMSI */ |
| 2139 | BSSGP[0].send(ts_BSSGP_CS_PAGING_PTMSI(bvci, imsi, tmsi)); |
| 2140 | } else { |
| 2141 | BSSGP[0].send(ts_BSSGP_CS_PAGING_IMSI(bvci, imsi)); |
| 2142 | } |
| 2143 | |
| 2144 | /* Receive it on BTS side towards MS */ |
| 2145 | f_rx_rlcmac_dl_block_exp_pkt_pag_req(dl_block); |
| 2146 | |
| 2147 | /* Make sure that Packet Paging Request contains the same P-TMSI/IMSI */ |
| 2148 | if (use_ptmsi) { |
| 2149 | f_pkt_paging_match_tmsi(dl_block.ctrl.payload.u.paging, tmsi); |
| 2150 | } else { |
| 2151 | f_pkt_paging_match_imsi(dl_block.ctrl.payload.u.paging, imsi); |
| 2152 | } |
| 2153 | |
Vadim Yanitskiy | 91f8a09 | 2020-05-06 21:41:05 +0700 | [diff] [blame] | 2154 | f_shutdown(__BFILE__, __LINE__, final := true); |
Pau Espin Pedrol | 8dd59fb | 2020-04-29 15:08:16 +0200 | [diff] [blame] | 2155 | } |
| 2156 | |
| 2157 | testcase TC_paging_cs_from_sgsn_sign_ptmsi() runs on RAW_PCU_Test_CT { |
| 2158 | f_tc_paging_cs_from_sgsn(0, true); |
| 2159 | } |
| 2160 | |
| 2161 | testcase TC_paging_cs_from_sgsn_sign() runs on RAW_PCU_Test_CT { |
| 2162 | f_tc_paging_cs_from_sgsn(0); |
| 2163 | } |
| 2164 | |
| 2165 | testcase TC_paging_cs_from_sgsn_ptp() runs on RAW_PCU_Test_CT { |
| 2166 | f_tc_paging_cs_from_sgsn(mp_gb_cfg.bvci); |
| 2167 | } |
| 2168 | |
| 2169 | /* Test PS paging over Gb (SGSN->PCU->BTS[CCCH]). |
| 2170 | */ |
| 2171 | private function f_tc_paging_ps_from_sgsn(Nsvci bvci, boolean use_ptmsi := false) |
| 2172 | runs on RAW_PCU_Test_CT { |
| 2173 | var OCT4 tlli := '00000001'O; |
| 2174 | var integer imsi_suff_tx := 423; |
| 2175 | var hexstring imsi := f_gen_imsi(imsi_suff_tx); |
| 2176 | |
| 2177 | /* Initialize NS/BSSGP side */ |
| 2178 | f_init_bssgp(); |
| 2179 | |
| 2180 | /* Initialize the PCU interface abstraction */ |
| 2181 | f_init_raw(testcasename()); |
| 2182 | |
| 2183 | /* Establish BSSGP connection to the PCU */ |
| 2184 | f_bssgp_establish(); |
| 2185 | f_bssgp_client_llgmm_assign('FFFFFFFF'O, tlli); |
| 2186 | |
| 2187 | /* Send BSSGP PAGING-PS (with or without TMSI), wait for RR Paging Request Type 1. |
| 2188 | * Make sure that both paging group (IMSI suffix) and Mobile Identity match. */ |
| 2189 | if (use_ptmsi) { |
| 2190 | var OCT4 tmsi := f_rnd_octstring(4); /* Random P-TMSI */ |
| 2191 | BSSGP[0].send(ts_BSSGP_PS_PAGING_PTMSI(bvci, imsi, oct2int(tmsi))); |
| 2192 | f_pcuif_rx_pch_pag_req1(t_MI_TMSI(tmsi), imsi_suff_tx); |
| 2193 | } else { |
| 2194 | BSSGP[0].send(ts_BSSGP_PS_PAGING_IMSI(bvci, imsi)); |
| 2195 | f_pcuif_rx_pch_pag_req1(tr_MI_IMSI(imsi), imsi_suff_tx); |
| 2196 | } |
| 2197 | |
Vadim Yanitskiy | 91f8a09 | 2020-05-06 21:41:05 +0700 | [diff] [blame] | 2198 | f_shutdown(__BFILE__, __LINE__, final := true); |
Pau Espin Pedrol | 8dd59fb | 2020-04-29 15:08:16 +0200 | [diff] [blame] | 2199 | } |
| 2200 | |
| 2201 | testcase TC_paging_ps_from_sgsn_sign_ptmsi() runs on RAW_PCU_Test_CT { |
| 2202 | f_tc_paging_ps_from_sgsn(0, true); |
| 2203 | } |
| 2204 | |
| 2205 | testcase TC_paging_ps_from_sgsn_sign() runs on RAW_PCU_Test_CT { |
| 2206 | f_tc_paging_ps_from_sgsn(0); |
| 2207 | } |
| 2208 | |
| 2209 | testcase TC_paging_ps_from_sgsn_ptp() runs on RAW_PCU_Test_CT { |
| 2210 | f_tc_paging_ps_from_sgsn(mp_gb_cfg.bvci); |
| 2211 | } |
| 2212 | |
| 2213 | private function f_TC_egprs_pkt_chan_req(in EGPRSPktChRequest req, |
| 2214 | template GsmRrMessage t_imm_ass := ?, |
| 2215 | PCUIF_BurstType bt := BURST_TYPE_1) |
| 2216 | runs on RAW_PCU_Test_CT { |
| 2217 | var GsmRrMessage rr_msg; |
| 2218 | var uint16_t ra11; |
| 2219 | var boolean ok; |
| 2220 | |
| 2221 | ra11 := enc_EGPRSPktChRequest2uint(req); |
| 2222 | log("Sending EGPRS Packet Channel Request (", ra11, "): ", req); |
| 2223 | |
| 2224 | ok := f_establish_tbf(rr_msg, ra := ra11, is_11bit := 1, burst_type := bt); |
| 2225 | if (not ok) { |
| 2226 | setverdict(fail, "Failed to establush an Uplink TBF"); |
Vadim Yanitskiy | 91f8a09 | 2020-05-06 21:41:05 +0700 | [diff] [blame] | 2227 | f_shutdown(__BFILE__, __LINE__); |
Pau Espin Pedrol | 8dd59fb | 2020-04-29 15:08:16 +0200 | [diff] [blame] | 2228 | } |
| 2229 | |
| 2230 | if (not match(rr_msg, t_imm_ass)) { |
| 2231 | setverdict(fail, "Immediate Assignment does not match"); |
Vadim Yanitskiy | 91f8a09 | 2020-05-06 21:41:05 +0700 | [diff] [blame] | 2232 | f_shutdown(__BFILE__, __LINE__); |
Pau Espin Pedrol | 8dd59fb | 2020-04-29 15:08:16 +0200 | [diff] [blame] | 2233 | } |
| 2234 | |
| 2235 | setverdict(pass); |
| 2236 | } |
| 2237 | |
| 2238 | testcase TC_egprs_pkt_chan_req_signalling() runs on RAW_PCU_Test_CT { |
| 2239 | var template GsmRrMessage imm_ass; |
| 2240 | var template IaRestOctets rest; |
| 2241 | var template EgprsUlAss ul_ass; |
| 2242 | |
| 2243 | /* Initialize the PCU interface abstraction */ |
| 2244 | f_init_raw(testcasename()); |
| 2245 | |
| 2246 | var EGPRSPktChRequest req := { |
| 2247 | /* NOTE: other fields are set in the loop */ |
| 2248 | signalling := { tag := '110011'B } |
| 2249 | }; |
| 2250 | |
| 2251 | for (var integer i := 0; i < 6; i := i + 1) { |
| 2252 | var BIT5 ext_ra := int2bit(f_rnd_int(32), 5); |
| 2253 | req.signalling.random_bits := ext_ra; |
| 2254 | |
| 2255 | /* For signalling, do we expect Multiblock UL TBF Assignment? */ |
| 2256 | ul_ass := tr_EgprsUlAssMultiblock(ext_ra := ext_ra); |
| 2257 | rest := tr_IaRestOctets_EGPRSULAss(ul_ass); |
| 2258 | imm_ass := tr_IMM_TBF_ASS(dl := false, rest := rest); |
| 2259 | |
| 2260 | f_TC_egprs_pkt_chan_req(req, imm_ass); |
| 2261 | } |
Vadim Yanitskiy | 91f8a09 | 2020-05-06 21:41:05 +0700 | [diff] [blame] | 2262 | |
| 2263 | f_shutdown(__BFILE__, __LINE__, final := true); |
Pau Espin Pedrol | 8dd59fb | 2020-04-29 15:08:16 +0200 | [diff] [blame] | 2264 | } |
| 2265 | |
| 2266 | testcase TC_egprs_pkt_chan_req_one_phase() runs on RAW_PCU_Test_CT { |
| 2267 | var template GsmRrMessage imm_ass; |
| 2268 | var template IaRestOctets rest; |
| 2269 | var template EgprsUlAss ul_ass; |
| 2270 | |
| 2271 | /* Initialize the PCU interface abstraction */ |
| 2272 | f_init_raw(testcasename()); |
| 2273 | |
| 2274 | var EGPRSPktChRequest req := { |
| 2275 | /* NOTE: other fields are set in the loop */ |
| 2276 | one_phase := { tag := '0'B } |
| 2277 | }; |
| 2278 | |
| 2279 | for (var integer i := 0; i < 6; i := i + 1) { |
| 2280 | var BIT5 ext_ra := int2bit(f_rnd_int(32), 5); |
| 2281 | var BIT5 mslot_class := int2bit(f_rnd_int(32), 5); |
| 2282 | var BIT2 priority := substr(ext_ra, 0, 2); |
| 2283 | var BIT3 rand := substr(ext_ra, 2, 3); |
| 2284 | |
| 2285 | req.one_phase.multislot_class := mslot_class; |
| 2286 | req.one_phase.priority := priority; |
| 2287 | req.one_phase.random_bits := rand; |
| 2288 | |
| 2289 | /* For one phase access, do we expect Dynamic UL TBF Assignment? */ |
| 2290 | ul_ass := tr_EgprsUlAssDynamic(ext_ra := ext_ra); |
| 2291 | rest := tr_IaRestOctets_EGPRSULAss(ul_ass); |
| 2292 | imm_ass := tr_IMM_TBF_ASS(dl := false, rest := rest); |
| 2293 | |
| 2294 | f_TC_egprs_pkt_chan_req(req, imm_ass); |
| 2295 | } |
Vadim Yanitskiy | 91f8a09 | 2020-05-06 21:41:05 +0700 | [diff] [blame] | 2296 | |
| 2297 | f_shutdown(__BFILE__, __LINE__, final := true); |
Pau Espin Pedrol | 8dd59fb | 2020-04-29 15:08:16 +0200 | [diff] [blame] | 2298 | } |
| 2299 | |
| 2300 | testcase TC_egprs_pkt_chan_req_two_phase() runs on RAW_PCU_Test_CT { |
| 2301 | var template GsmRrMessage imm_ass; |
| 2302 | var template IaRestOctets rest; |
| 2303 | var template EgprsUlAss ul_ass; |
| 2304 | |
| 2305 | /* Initialize the PCU interface abstraction */ |
| 2306 | f_init_raw(testcasename()); |
| 2307 | |
| 2308 | var EGPRSPktChRequest req := { |
| 2309 | /* NOTE: other fields are set in the loop */ |
| 2310 | two_phase := { tag := '110000'B } |
| 2311 | }; |
| 2312 | |
| 2313 | for (var integer i := 0; i < 6; i := i + 1) { |
| 2314 | var BIT5 ext_ra := int2bit(f_rnd_int(32), 5); |
| 2315 | var BIT2 priority := substr(ext_ra, 0, 2); |
| 2316 | var BIT3 rand := substr(ext_ra, 2, 3); |
| 2317 | |
| 2318 | req.two_phase.priority := priority; |
| 2319 | req.two_phase.random_bits := rand; |
| 2320 | |
| 2321 | /* For two phase access, do we expect Multiblock UL TBF Assignment? */ |
| 2322 | ul_ass := tr_EgprsUlAssMultiblock(ext_ra := ext_ra); |
| 2323 | rest := tr_IaRestOctets_EGPRSULAss(ul_ass); |
| 2324 | imm_ass := tr_IMM_TBF_ASS(dl := false, rest := rest); |
| 2325 | |
| 2326 | f_TC_egprs_pkt_chan_req(req, imm_ass); |
| 2327 | } |
Vadim Yanitskiy | 91f8a09 | 2020-05-06 21:41:05 +0700 | [diff] [blame] | 2328 | |
| 2329 | f_shutdown(__BFILE__, __LINE__, final := true); |
Pau Espin Pedrol | 8dd59fb | 2020-04-29 15:08:16 +0200 | [diff] [blame] | 2330 | } |
| 2331 | |
| 2332 | control { |
| 2333 | execute( TC_pcuif_suspend() ); |
| 2334 | execute( TC_ta_ptcch_idle() ); |
| 2335 | execute( TC_ta_rach_imm_ass() ); |
| 2336 | execute( TC_ta_idle_dl_tbf_ass() ); |
| 2337 | execute( TC_ta_ptcch_ul_multi_tbf() ); |
| 2338 | execute( TC_cs_lqual_ul_tbf() ); |
| 2339 | execute( TC_cs_initial_ul() ); |
| 2340 | execute( TC_cs_max_ul() ); |
| 2341 | execute( TC_t3169() ); |
| 2342 | execute( TC_t3193() ); |
Pau Espin Pedrol | 487d634 | 2020-05-14 19:22:33 +0200 | [diff] [blame] | 2343 | execute( TC_countdown_procedure() ); |
Pau Espin Pedrol | 8dd59fb | 2020-04-29 15:08:16 +0200 | [diff] [blame] | 2344 | execute( TC_mo_ping_pong() ); |
| 2345 | execute( TC_mo_ping_pong_with_ul_racap() ); |
Pau Espin Pedrol | 0c0bf87 | 2020-05-14 15:50:49 +0200 | [diff] [blame] | 2346 | execute( TC_force_two_phase_access() ); |
Pau Espin Pedrol | 8dd59fb | 2020-04-29 15:08:16 +0200 | [diff] [blame] | 2347 | execute( TC_mt_ping_pong() ); |
| 2348 | execute( TC_mt_ping_pong_with_dl_racap() ); |
Pau Espin Pedrol | a416cb8 | 2020-05-15 14:09:02 +0200 | [diff] [blame^] | 2349 | execute (TC_ul_intermediate_retrans() ); |
Pau Espin Pedrol | 8dd59fb | 2020-04-29 15:08:16 +0200 | [diff] [blame] | 2350 | execute( TC_imm_ass_dl_block_retrans() ); |
Vadim Yanitskiy | 71238c1 | 2020-05-11 03:48:06 +0700 | [diff] [blame] | 2351 | execute( TC_dl_flow_more_blocks() ); |
Pau Espin Pedrol | 8dd59fb | 2020-04-29 15:08:16 +0200 | [diff] [blame] | 2352 | execute( TC_paging_cs_from_bts() ); |
| 2353 | execute( TC_paging_cs_from_sgsn_sign_ptmsi() ); |
| 2354 | execute( TC_paging_cs_from_sgsn_sign() ); |
| 2355 | execute( TC_paging_cs_from_sgsn_ptp() ); |
| 2356 | execute( TC_paging_ps_from_sgsn_sign_ptmsi() ); |
| 2357 | execute( TC_paging_ps_from_sgsn_sign() ); |
| 2358 | execute( TC_paging_ps_from_sgsn_ptp() ); |
| 2359 | |
| 2360 | /* EGPRS specific test cases */ |
| 2361 | execute( TC_egprs_pkt_chan_req_signalling() ); |
| 2362 | execute( TC_egprs_pkt_chan_req_one_phase() ); |
| 2363 | execute( TC_egprs_pkt_chan_req_two_phase() ); |
Pau Espin Pedrol | 42acafc | 2020-05-14 15:18:38 +0200 | [diff] [blame] | 2364 | |
| 2365 | execute( TC_mo_ping_pong_with_ul_racap_egprs_only() ); |
Pau Espin Pedrol | 8dd59fb | 2020-04-29 15:08:16 +0200 | [diff] [blame] | 2366 | } |
| 2367 | |
| 2368 | |
| 2369 | |
| 2370 | |
| 2371 | |
| 2372 | |
Harald Welte | a419df2 | 2019-03-21 17:23:04 +0100 | [diff] [blame] | 2373 | } |