ulsim.c 64.7 KB
Newer Older
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27
/*
* Licensed to the OpenAirInterface (OAI) Software Alliance under one or more
* contributor license agreements.  See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The OpenAirInterface Software Alliance licenses this file to You under
* the OAI Public License, Version 1.1  (the "License"); you may not use this file
* except in compliance with the License.
* You may obtain a copy of the License at
*
*      http://www.openairinterface.org/?page_id=698
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*-------------------------------------------------------------------------------
* For more information about the OpenAirInterface (OAI) Software Alliance:
*      contact@openairinterface.org
*/

#include <string.h>
#include <math.h>
#include <unistd.h>
#include <fcntl.h>
#include <sys/ioctl.h>
#include <sys/mman.h>
28
#include "common/ran_context.h"
29 30
#include "common/config/config_userapi.h"
#include "common/utils/LOG/log.h"
31
#include "common/utils/nr/nr_common.h"
Robert Schmidt's avatar
Robert Schmidt committed
32
#include "common/utils/var_array.h"
33
#include "PHY/defs_gNB.h"
34 35
#include "PHY/defs_nr_common.h"
#include "PHY/defs_nr_UE.h"
36
#include "PHY/phy_vars_nr_ue.h"
37
#include "PHY/types.h"
38
#include "PHY/INIT/nr_phy_init.h"
39
#include "PHY/MODULATION/modulation_UE.h"
40 41 42
#include "PHY/MODULATION/nr_modulation.h"
#include "PHY/NR_REFSIG/dmrs_nr.h"
#include "PHY/NR_REFSIG/refsig_defs_ue.h"
43
#include "PHY/NR_TRANSPORT/nr_dlsch.h"
44 45
#include "PHY/NR_TRANSPORT/nr_sch_dmrs.h"
#include "PHY/NR_TRANSPORT/nr_transport_proto.h"
46 47
#include "PHY/NR_TRANSPORT/nr_ulsch.h"
#include "PHY/NR_UE_TRANSPORT/nr_transport_proto_ue.h"
48
#include "PHY/TOOLS/tools_defs.h"
Francesco Mani's avatar
Francesco Mani committed
49
#include "SCHED_NR/fapi_nr_l1.h"
50
#include "SCHED_NR/sched_nr.h"
51
#include "SCHED_NR_UE/defs.h"
52
#include "SCHED_NR_UE/fapi_nr_ue_l1.h"
53 54 55
#include "openair1/SIMULATION/TOOLS/sim.h"
#include "openair1/SIMULATION/RF/rf.h"
#include "openair1/SIMULATION/NR_PHY/nr_unitary_defs.h"
Robert Schmidt's avatar
Robert Schmidt committed
56
#include "openair2/RRC/NR/nr_rrc_config.h"
57
#include "openair2/LAYER2/NR_MAC_UE/mac_proto.h"
58
#include "openair2/LAYER2/NR_MAC_gNB/mac_proto.h"
Sakthivel Velumani's avatar
Sakthivel Velumani committed
59
#include "common/utils/threadPool/thread-pool.h"
60
#include "PHY/NR_REFSIG/ptrs_nr.h"
61
#define inMicroS(a) (((double)(a))/(get_cpu_freq_GHz()*1000.0))
62
#include "SIMULATION/LTE_PHY/common_sim.h"
63

Laurent's avatar
Laurent committed
64 65
#include <openair2/RRC/LTE/rrc_vars.h>

Raymond Knopp's avatar
Raymond Knopp committed
66
#include <executables/softmodem-common.h>
dir's avatar
dir committed
67
#include "PHY/NR_REFSIG/ul_ref_seq_nr.h"
68
#include <openair3/ocp-gtpu/gtp_itf.h>
69
#include "executables/nr-uesoftmodem.h"
70
//#define DEBUG_ULSIM
71

72 73 74 75 76 77
const char *__asan_default_options()
{
  /* don't do leak checking in nr_ulsim, not finished yet */
  return "detect_leaks=0";
}

78 79 80
PHY_VARS_gNB *gNB;
PHY_VARS_NR_UE *UE;
RAN_CONTEXT_t RC;
81
char *uecap_file;
82 83
int32_t uplink_frequency_offset[MAX_NUM_CCs][4];

Laurent THOMAS's avatar
Laurent THOMAS committed
84
uint16_t sf_ahead=4 ;
Aniq's avatar
Aniq committed
85
int slot_ahead=6 ;
Laurent THOMAS's avatar
Laurent THOMAS committed
86
uint16_t sl_ahead=0;
87
double cpuf;
88
//uint8_t nfapi_mode = 0;
89
uint64_t downlink_frequency[MAX_NUM_CCs][4];
90 91
THREAD_STRUCT thread_struct;
nfapi_ue_release_request_body_t release_rntis;
92

93 94 95
//Fixme: Uniq dirty DU instance, by global var, datamodel need better management
instance_t DUuniqInstance=0;
instance_t CUuniqInstance=0;
96

mir's avatar
mir committed
97
void nr_derive_key_ng_ran_star(uint16_t pci, uint64_t nr_arfcn_dl, const uint8_t key[32], uint8_t *key_ng_ran_star)
98 99 100
{
}

101
extern void fix_scd(NR_ServingCellConfig_t *scd);// forward declaration
102

103 104 105 106 107
void nr_rrc_ue_generate_RRCSetupRequest(module_id_t module_id, const uint8_t gNB_index)
{
  return;
}

108 109 110 111 112 113 114
int8_t nr_mac_rrc_data_req_ue(const module_id_t Mod_idP,
                              const int         CC_id,
                              const uint8_t     gNB_id,
                              const frame_t     frameP,
                              const rb_id_t     Srb_id,
                              uint8_t           *buffer_pP)
{
rmagueta's avatar
rmagueta committed
115 116 117
  return 0;
}

118 119 120
int8_t nr_rrc_RA_succeeded(const module_id_t mod_id, const uint8_t gNB_index) {
  return 0;
}
rmagueta's avatar
rmagueta committed
121

rmagueta's avatar
rmagueta committed
122 123 124 125 126 127 128 129 130 131 132
int DU_send_INITIAL_UL_RRC_MESSAGE_TRANSFER(module_id_t     module_idP,
                                            int             CC_idP,
                                            int             UE_id,
                                            rnti_t          rntiP,
                                            const uint8_t   *sduP,
                                            sdu_size_t      sdu_lenP,
                                            const uint8_t   *sdu2P,
                                            sdu_size_t      sdu2_lenP) {
  return 0;
}

Robert Schmidt's avatar
Robert Schmidt committed
133 134
nr_bler_struct nr_bler_data[NR_NUM_MCS];

mir's avatar
mir committed
135
void nr_derive_key(int alg_type, uint8_t alg_id, const uint8_t key[32], uint8_t out[16])
136
{
mir's avatar
mir committed
137
  (void)alg_type;
rmagueta's avatar
rmagueta committed
138 139
}

140 141
void processSlotTX(void *arg) {}

Sakthivel Velumani's avatar
Sakthivel Velumani committed
142 143 144 145 146
nrUE_params_t nrUE_params;

nrUE_params_t *get_nrUE_params(void) {
  return &nrUE_params;
}
147 148 149 150
// needed for some functions
uint16_t n_rnti = 0x1234;
openair0_config_t openair0_cfg[MAX_CARDS];

151
channel_desc_t *UE2gNB[NUMBER_OF_UE_MAX][NUMBER_OF_gNB_MAX];
laurent's avatar
laurent committed
152
int NB_UE_INST = 1;
153

154 155
int main(int argc, char **argv)
{
156

157
  char c;
laurent's avatar
laurent committed
158
  int i;
159 160
  double SNR, snr0 = -2.0, snr1 = 2.0;
  double sigma, sigma_dB;
161
  double snr_step = .2;
162
  uint8_t snr1set = 0;
Raymond Knopp's avatar
Raymond Knopp committed
163
  int slot = 8, frame = 1;
164
  int do_SRS = 0;
165
  FILE *output_fd = NULL;
166
  double **s_re,**s_im,**r_re,**r_im;
167
  //uint8_t write_output_file = 0;
168
  int trial, n_trials = 1, n_false_positive = 0, delay = 0;
169
  double maxDoppler = 0.0;
170
  uint8_t n_tx = 1, n_rx = 1;
171
  //uint8_t transmission_mode = 1;
172
  //uint16_t Nid_cell = 0;
173
  channel_desc_t *UE2gNB;
174 175
  uint8_t extended_prefix_flag = 0;
  //int8_t interf1 = -21, interf2 = -21;
176
  FILE *input_fd = NULL;
177
  SCM_t channel_model = AWGN;  //Rayleigh1_anticorr;
178
  corr_level_t corr_level = CORR_LEVEL_LOW;
179
  uint16_t N_RB_DL = 106, N_RB_UL = 106, mu = 1;
180

181 182
  //unsigned char frame_type = 0;
  NR_DL_FRAME_PARMS *frame_parms;
183
  int loglvl = OAILOG_WARNING;
184
  uint16_t nb_symb_sch = 12;
185
  int start_symbol = 0;
186
  uint16_t nb_rb = 50;
187
  int Imcs = 9;
188
  uint8_t precod_nbr_layers = 1;
Khalid Ahmed's avatar
Khalid Ahmed committed
189
  int tx_offset;
190
  int32_t txlev_sum = 0, atxlev[4];
Ahmed Hussein's avatar
Ahmed Hussein committed
191
  int start_rb = 0;
192
  int UE_id = 0;
193
  int print_perf = 0;
194
  cpuf = get_cpu_freq_GHz();
195
  int msg3_flag = 0;
196
  int rv_index = 0;
197 198 199
  float roundStats;
  double effRate;
  double effTP;
200
  float eff_tp_check = 100;
201
  int ldpc_offload_flag = 0;
202
  uint8_t max_rounds = 4;
203
  int chest_type[2] = {0};
204
  int enable_ptrs = 0;
205 206 207
  int modify_dmrs = 0;
  /* L_PTRS = ptrs_arg[0], K_PTRS = ptrs_arg[1] */
  int ptrs_arg[2] = {-1,-1};// Invalid values
208
  int dmrs_arg[4] = {-1,-1,-1,-1};// Invalid values
209 210 211
  uint16_t ptrsSymPos = 0;
  uint16_t ptrsSymbPerSlot = 0;
  uint16_t ptrsRePerSymb = 0;
212

213
  uint8_t transform_precoding = transformPrecoder_disabled; // 0 - ENABLE, 1 - DISABLE
dir's avatar
dir committed
214 215
  uint8_t num_dmrs_cdm_grps_no_data = 1;
  uint8_t mcs_table = 0;
216
  int ilbrm = 0;
dir's avatar
dir committed
217

218
  UE_nr_rxtx_proc_t UE_proc;
219
  FILE *scg_fd=NULL;
220
  int file_offset = 0;
221

222
  double DS_TDL = .03;
Francesco Mani's avatar
Francesco Mani committed
223
  int ibwps=24;
224
  int ibwp_rboffset=41;
225
  int params_from_file = 0;
226
  int threadCnt=0;
227
  int max_ldpc_iterations = 5;
yilmazt's avatar
yilmazt committed
228
  if ( load_configmodule(argc,argv,CONFIG_ENABLECMDLINEONLY) == 0 ) {
yilmazt's avatar
yilmazt committed
229
    exit_fun("[NR_ULSIM] Error, configuration module init failed\n");
230
  }
231
  int ul_proc_error = 0; // uplink processing checking status flag
232 233 234
  //logInit();
  randominit(0);

235 236 237
  /* initialize the sin-cos table */
   InitSinLUT();

238
  while ((c = getopt(argc, argv, "a:b:c:d:ef:g:h:i:kl:m:n:op:q:r:s:t:u:v:w:y:z:C:F:G:H:I:M:N:PR:S:T:U:L:ZW:E:")) != -1) {
239
    printf("handling optarg %c\n",c);
240
    switch (c) {
241 242 243 244 245

      /*case 'd':
        frame_type = 1;
        break;*/

246 247 248 249 250 251 252 253 254
    case 'a':
      start_symbol = atoi(optarg);
      AssertFatal(start_symbol >= 0 && start_symbol < 13,"start_symbol %d is not in 0..12\n",start_symbol);
      break;

    case 'b':
      nb_symb_sch = atoi(optarg);
      AssertFatal(nb_symb_sch > 0 && nb_symb_sch < 15,"start_symbol %d is not in 1..14\n",nb_symb_sch);
      break;
255

256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272
    case 'c':
      n_rnti = atoi(optarg);
      AssertFatal(n_rnti > 0 && n_rnti<=65535,"Illegal n_rnti %x\n",n_rnti);
      break;

    case 'd':
      delay = atoi(optarg);
      break;
      
    case 'e':
      msg3_flag = 1;
      break;
      
    case 'f':
      scg_fd = fopen(optarg, "r");
      
      if (scg_fd == NULL) {
273 274
        printf("Error opening %s\n", optarg);
        exit(-1);
275
      }
276

277 278 279
      break;
      
    case 'g':
280

281
      switch ((char) *optarg) {
282 283
        case 'A':
          channel_model = TDL_A;
284
          DS_TDL = 0.030; // 30 ns
285 286
          printf("Channel model: TDLA30\n");
          break;
287
        case 'B':
288
          channel_model = TDL_B;
289
          DS_TDL = 0.100; // 100ns
290 291
          printf("Channel model: TDLB100\n");
          break;
292
        case 'C':
293 294 295 296 297 298 299
          channel_model = TDL_C;
          DS_TDL = 0.300; // 300 ns
          printf("Channel model: TDLC300\n");
          break;
        default:
          printf("Unsupported channel model!\n");
          exit(-1);
300
      }
301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317

      if (optarg[1] == ',') {
        switch (optarg[2]) {
          case 'l':
            corr_level = CORR_LEVEL_LOW;
            break;
          case 'm':
            corr_level = CORR_LEVEL_MEDIUM;
            break;
          case 'h':
            corr_level = CORR_LEVEL_HIGH;
            break;
          default:
            printf("Invalid correlation level!\n");
        }
      }

318 319 320 321
      if (optarg[3] == ',') {
        maxDoppler = atoi(&optarg[4]);
        printf("Maximum Doppler Frequency: %.0f Hz\n", maxDoppler);
      }
322 323
      break;
      
324
    case 'i':
325 326 327 328 329
      i=0;
      do {
        chest_type[i>>1] = atoi(&optarg[i]);
        i+=2;
      } while (optarg[i-1] == ',');
330
      break;
331 332 333 334 335
	
    case 'k':
      printf("Setting threequarter_fs_flag\n");
      openair0_cfg[0].threequarter_fs= 1;
      break;
336

337 338 339 340 341 342 343
    case 'l':
      nb_symb_sch = atoi(optarg);
      break;
      
    case 'm':
      Imcs = atoi(optarg);
      break;
344 345 346 347

    case 'W':
      precod_nbr_layers = atoi(optarg);
      break;
348

349 350 351
    case 'n':
      n_trials = atoi(optarg);
      break;
352 353

    case 'o':
Hongzhi Wang's avatar
Hongzhi Wang committed
354
      ldpc_offload_flag = 1;
355
      break;
356 357 358 359
      
    case 'p':
      extended_prefix_flag = 1;
      break;
360 361 362 363

    case 'q':
      mcs_table = atoi(optarg);
      break;
364

365 366 367 368 369 370 371 372
    case 'r':
      nb_rb = atoi(optarg);
      break;
      
    case 's':
      snr0 = atof(optarg);
      printf("Setting SNR0 to %f\n", snr0);
      break;
373

374
    case 'C':
375 376
      threadCnt = atoi(optarg);
      break;
377

Sakthivel Velumani's avatar
Sakthivel Velumani committed
378 379 380 381
    case 'u':
      mu = atoi(optarg);
      break;

Hongzhi Wang's avatar
Hongzhi Wang committed
382 383
    case 'v':
      max_rounds = atoi(optarg);
384
      AssertFatal(max_rounds > 0 && max_rounds < 16, "Unsupported number of rounds %d, should be in [1,16]\n", max_rounds);
Hongzhi Wang's avatar
Hongzhi Wang committed
385 386
      break;

Sakthivel Velumani's avatar
Sakthivel Velumani committed
387 388 389 390
    case 'w':
      start_rb = atoi(optarg);
      break;

391
    case 't':
392
      eff_tp_check = atof(optarg);
393
      break;
394

395
      /*
396 397 398 399 400 401 402 403 404
	case 'r':
	ricean_factor = pow(10,-.1*atof(optarg));
	if (ricean_factor>1) {
	printf("Ricean factor must be between 0 and 1\n");
	exit(-1);
	}
	break;
      */
      
405 406 407
      /*case 'x':
        transmission_mode = atoi(optarg);
        break;*/
408 409 410
      
    case 'y':
      n_tx = atoi(optarg);
411
      if ((n_tx == 0) || (n_tx > 4)) {
francescomani's avatar
francescomani committed
412 413
        printf("Unsupported number of tx antennas %d\n", n_tx);
        exit(-1);
414 415 416 417 418
      }
      break;
      
    case 'z':
      n_rx = atoi(optarg);
419
      if ((n_rx == 0) || (n_rx > 8)) {
francescomani's avatar
francescomani committed
420 421
        printf("Unsupported number of rx antennas %d\n", n_rx);
        exit(-1);
422 423
      }
      break;
424

425 426 427
    case 'F':
      input_fd = fopen(optarg, "r");
      if (input_fd == NULL) {
francescomani's avatar
francescomani committed
428 429
        printf("Problem with filename %s\n", optarg);
        exit(-1);
430 431
      }
      break;
432 433 434 435 436 437 438 439 440

    case 'G':
      file_offset = atoi(optarg);
      break;

    case 'H':
      slot = atoi(optarg);
      break;

441 442 443 444
    case 'I':
      max_ldpc_iterations = atoi(optarg);
      break;

445
    case 'M':
446
      ilbrm = atoi(optarg);
447 448 449
      break;
      
    case 'N':
Francesco Mani's avatar
Francesco Mani committed
450
     // Nid_cell = atoi(optarg);
451 452 453 454 455 456 457 458 459 460 461 462 463 464 465 466 467 468 469 470 471
      break;
      
    case 'R':
      N_RB_DL = atoi(optarg);
      N_RB_UL = N_RB_DL;
      break;
      
    case 'S':
      snr1 = atof(optarg);
      snr1set = 1;
      printf("Setting SNR1 to %f\n", snr1);
      break;
      
    case 'P':
      print_perf=1;
      opp_enabled=1;
      break;
      
    case 'L':
      loglvl = atoi(optarg);
      break;
472 473 474

   case 'T':
      enable_ptrs=1;
475 476 477 478 479
      i=0;
      do {
        ptrs_arg[i>>1] = atoi(&optarg[i]);
        i+=2;
      } while (optarg[i-1] == ',');
480 481 482 483
      break;

    case 'U':
      modify_dmrs = 1;
484 485 486 487 488
      i=0;
      do {
        dmrs_arg[i>>1] = atoi(&optarg[i]);
        i+=2;
      } while (optarg[i-1] == ',');
489
      break;
490

491 492 493 494
    case 'Q':
      params_from_file = 1;
      break;

dir's avatar
dir committed
495
    case 'Z':
496
      transform_precoding = transformPrecoder_enabled;
dir's avatar
dir committed
497 498
      num_dmrs_cdm_grps_no_data = 2;
      mcs_table = 3;
499
      printf("NOTE: TRANSFORM PRECODING (SC-FDMA) is ENABLED in UPLINK (0 - ENABLE, 1 - DISABLE) : %d \n", transform_precoding);
dir's avatar
dir committed
500 501
      break;

502 503 504 505 506 507 508 509 510 511 512 513
    case 'E':
      do_SRS = atoi(optarg);
      if (do_SRS == 0) {
        printf("SRS disabled\n");
      } else if (do_SRS == 1) {
        printf("SRS enabled\n");
      } else {
        printf("Invalid SRS option. SRS disabled.\n");
        do_SRS = 0;
      }
      break;

514 515
    default:
    case 'h':
516
      printf("%s -h(elp) -p(extended_prefix) -N cell_id -f output_filename -F input_filename -g channel_model -i Intefrence0 -j Interference1 -n n_frames -s snr0 -S snr1 -t Delayspread -x transmission_mode -y TXant -z RXant -A interpolation_file -C(alibration offset dB) -N CellId -Z Enable SC-FDMA in Uplink \n", argv[0]);
517 518 519
      //printf("-d Use TDD\n");
      printf("-d Introduce delay in terms of number of samples\n");
      printf("-f Number of frames to simulate\n");
520
      printf("-g Channel model configuration. Arguments list: Number of arguments = 3, {Channel model: [A] TDLA30, [B] TDLB100, [C] TDLC300}, {Correlation: [l] Low, [m] Medium, [h] High}, {Maximum Doppler shift} e.g. -g A,l,10\n");
521
      printf("-h This message\n");
522
      printf("-i Change channel estimation technique. Arguments list: Number of arguments=2, Frequency domain {0:Linear interpolation, 1:PRB based averaging}, Time domain {0:Estimates of last DMRS symbol, 1:Average of DMRS symbols}. e.g. -i 1,0\n");
523 524
      //printf("-j Relative strength of second intefering eNB (in dB) - cell_id mod 3 = 2\n");
      printf("-s Starting SNR, runs from SNR0 to SNR0 + 10 dB if ending SNR isn't given\n");
525
      printf("-S Ending SNR, runs from SNR0 to SNR1\n");
526 527
      printf("-m MCS value\n");
      printf("-n Number of trials to simulate\n");
528
      printf("-o ldpc offload flag\n");
529
      printf("-p Use extended prefix mode\n");
530
      printf("-q MCS table\n");
Arash's avatar
Arash committed
531
      printf("-r Number of allocated resource blocks for PUSCH\n");
Sakthivel Velumani's avatar
Sakthivel Velumani committed
532 533
      printf("-u Set the numerology\n");
      printf("-w Start PRB for PUSCH\n");
534
      //printf("-x Transmission mode (1,2,6 for the moment)\n");
535 536
      printf("-y Number of TX antennas used at UE\n");
      printf("-z Number of RX antennas used at gNB\n");
Hongzhi Wang's avatar
Hongzhi Wang committed
537
      printf("-v Set the max rounds\n");
538 539 540
      printf("-A Interpolation_filname Run with Abstraction to generate Scatter plot using interpolation polynomial in file\n");
      //printf("-C Generate Calibration information for Abstraction (effective SNR adjustment to remove Pe bias w.r.t. AWGN)\n");
      printf("-F Input filename (.txt format) for RX conformance testing\n");
541
      printf("-G Offset of samples to read from file (0 default)\n");
542
      printf("-L <log level, 0(errors), 1(warning), 2(info) 3(debug) 4 (trace)>\n");
543
      printf("-I Maximum LDPC decoder iterations\n");
544
      printf("-M Use limited buffer rate-matching\n");
545 546
      printf("-N Nid_cell\n");
      printf("-O oversampling factor (1,2,4,8,16)\n");
Arash's avatar
Arash committed
547
      printf("-R Maximum number of available resorce blocks (N_RB_DL)\n");
548
      printf("-t Acceptable effective throughput (in percentage)\n");
549
      printf("-P Print ULSCH performances\n");
550 551
      printf("-T Enable PTRS, arguments list: Number of arguments=2 L_PTRS{0,1,2} K_PTRS{2,4}, e.g. -T 0,2 \n");
      printf("-U Change DMRS Config, arguments list: Number of arguments=4, DMRS Mapping Type{0=A,1=B}, DMRS AddPos{0:3}, DMRS Config Type{1,2}, Number of CDM groups without data{1,2,3} e.g. -U 0,2,0,1 \n");
552
      printf("-Q If -F used, read parameters from file\n");
dir's avatar
dir committed
553
      printf("-Z If -Z is used, SC-FDMA or transform precoding is enabled in Uplink \n");
francescomani's avatar
francescomani committed
554
      printf("-W Num of layer for PUSCH\n");
555
      printf("-E {SRS: [0] Disabled, [1] Enabled} e.g. -E 1\n");
556 557
      exit(-1);
      break;
558

559 560
    }
  }
561
  
562 563 564 565
  logInit();
  set_glog(loglvl);
  T_stdout = 1;

566
  get_softmodem_params()->phy_test = 1;
567
  get_softmodem_params()->do_ra = 0;
Francesco Mani's avatar
Francesco Mani committed
568 569
  get_softmodem_params()->usim_test = 1;

570 571
  if (snr1set == 0)
    snr1 = snr0 + 10;
572

573 574 575 576 577 578 579 580 581
  double sampling_frequency, tx_bandwidth, rx_bandwidth;
  uint32_t samples;
  get_samplerate_and_bw(mu,
                        N_RB_DL,
                        openair0_cfg[0].threequarter_fs,
                        &sampling_frequency,
                        &samples,
                        &tx_bandwidth,
                        &rx_bandwidth);
582

583
  RC.gNB = (PHY_VARS_gNB **) malloc(sizeof(PHY_VARS_gNB *));
584
  RC.gNB[0] = calloc(1,sizeof(PHY_VARS_gNB));
585
  gNB = RC.gNB[0];
586
  gNB->ofdm_offset_divisor = UINT_MAX;
587
  initNotifiedFIFO(&gNB->respDecode);
588

589
  initFloatingCoresTpool(threadCnt, &gNB->threadPool, false, "gNB-tpool");
590 591 592 593 594
  initNotifiedFIFO(&gNB->respDecode);
  initNotifiedFIFO(&gNB->L1_tx_free);
  initNotifiedFIFO(&gNB->L1_tx_filled);
  initNotifiedFIFO(&gNB->L1_tx_out);
  notifiedFIFO_elt_t *msgL1Tx = newNotifiedFIFO_elt(sizeof(processingData_L1tx_t), 0, &gNB->L1_tx_free, NULL);
Sakthivel Velumani's avatar
Sakthivel Velumani committed
595 596
  processingData_L1tx_t *msgDataTx = (processingData_L1tx_t *)NotifiedFifoData(msgL1Tx);
  msgDataTx->slot = -1;
597
  //gNB_config = &gNB->gNB_config;
598

599
  //memset((void *)&gNB->UL_INFO,0,sizeof(gNB->UL_INFO));
Francesco Mani's avatar
Francesco Mani committed
600 601 602 603
  gNB->UL_INFO.rx_ind.pdu_list = (nfapi_nr_rx_data_pdu_t *)malloc(NB_UE_INST*sizeof(nfapi_nr_rx_data_pdu_t));
  gNB->UL_INFO.crc_ind.crc_list = (nfapi_nr_crc_t *)malloc(NB_UE_INST*sizeof(nfapi_nr_crc_t));
  gNB->UL_INFO.rx_ind.number_of_pdus = 0;
  gNB->UL_INFO.crc_ind.number_crcs = 0;
604
  gNB->max_ldpc_iterations = max_ldpc_iterations;
605
  gNB->pusch_thres = -20;
606
  frame_parms = &gNB->frame_parms; //to be initialized I suppose (maybe not necessary for PBCH)
607

608 609 610 611
  frame_parms->N_RB_DL = N_RB_DL;
  frame_parms->N_RB_UL = N_RB_UL;
  frame_parms->Ncp = extended_prefix_flag ? EXTENDED : NORMAL;

612 613 614 615
  s_re = malloc(n_tx*sizeof(double*));
  s_im = malloc(n_tx*sizeof(double*));
  r_re = malloc(n_rx*sizeof(double*));
  r_im = malloc(n_rx*sizeof(double*));
616

617 618 619 620
  RC.nb_nr_macrlc_inst = 1;
  RC.nb_nr_mac_CC = (int*)malloc(RC.nb_nr_macrlc_inst*sizeof(int));
  for (i = 0; i < RC.nb_nr_macrlc_inst; i++)
    RC.nb_nr_mac_CC[i] = 1;
621
  mac_top_init_gNB(ngran_gNB);
622

Robert Schmidt's avatar
Robert Schmidt committed
623 624
  NR_ServingCellConfigCommon_t *scc = calloc(1,sizeof(*scc));;
  prepare_scc(scc);
625
  uint64_t ssb_bitmap;
Robert Schmidt's avatar
Robert Schmidt committed
626
  fill_scc_sim(scc, &ssb_bitmap, N_RB_DL, N_RB_DL, mu, mu);
Francesco Mani's avatar
Francesco Mani committed
627 628
  fix_scc(scc,ssb_bitmap);

Robert Schmidt's avatar
Robert Schmidt committed
629
  NR_ServingCellConfig_t *scd = calloc(1,sizeof(NR_ServingCellConfig_t));
630 631
  prepare_scd(scd);

632 633 634 635
  NR_UE_NR_Capability_t* UE_Capability_nr = CALLOC(1,sizeof(NR_UE_NR_Capability_t));
  prepare_sim_uecap(UE_Capability_nr,scc,mu,
                    N_RB_UL,0,mcs_table);

636
  // TODO do a UECAP for phy-sim
637
  const gNB_RrcConfigurationReq conf = {
638
    .pdsch_AntennaPorts = { .N1 = 1, .N2 = 1, .XP = 1 },
639
    .pusch_AntennaPorts = n_rx,
640 641 642 643 644
    .minRXTXTIME = 0,
    .do_CSIRS = 0,
    .do_SRS = 0,
    .force_256qam_off = false
  };
645 646

  NR_CellGroupConfig_t *secondaryCellGroup = get_default_secondaryCellGroup(scc, scd, UE_Capability_nr, 0, 1, &conf, 0);
647

648 649 650
  /* RRC parameter validation for secondaryCellGroup */
  fix_scd(scd);

Robert Schmidt's avatar
Robert Schmidt committed
651 652
  NR_BCCH_BCH_Message_t *mib = get_new_MIB_NR(scc);

653
  AssertFatal((gNB->if_inst = NR_IF_Module_init(0))!=NULL,"Cannot register interface");
654

655
  gNB->if_inst->NR_PHY_config_req = nr_phy_config_request;
656
  // common configuration
657
  nr_mac_config_scc(RC.nrmac[0], conf.pdsch_AntennaPorts, n_tx, 0, 6, scc);
Robert Schmidt's avatar
Robert Schmidt committed
658
  nr_mac_config_mib(RC.nrmac[0], mib);
659
  // UE dedicated configuration
660
  nr_mac_add_test_ue(RC.nrmac[0], secondaryCellGroup->spCellConfig->reconfigurationWithSync->newUE_Identity, secondaryCellGroup);
661
  frame_parms->nb_antennas_tx = 1;
662 663
  frame_parms->nb_antennas_rx = n_rx;
  nfapi_nr_config_request_scf_t *cfg = &gNB->gNB_config;
664
  cfg->carrier_config.num_tx_ant.value = 1;
665
  cfg->carrier_config.num_rx_ant.value = n_rx;
666

Raymond Knopp's avatar
Raymond Knopp committed
667
//  nr_phy_config_request_sim(gNB,N_RB_DL,N_RB_DL,mu,0,0x01);
668
  gNB->ldpc_offload_flag = ldpc_offload_flag;
669 670
  gNB->chest_freq = chest_type[0];
  gNB->chest_time = chest_type[1];
Hongzhi Wang's avatar
Hongzhi Wang committed
671

672
  phy_init_nr_gNB(gNB);
673 674 675 676
  /* RU handles rxdataF, and gNB just has a pointer. Here, we don't have an RU,
   * so we need to allocate that memory as well. */
  for (i = 0; i < n_rx; i++)
    gNB->common_vars.rxdataF[i] = malloc16_clear(gNB->frame_parms.samples_per_frame_wCP*sizeof(int32_t));
677
  N_RB_DL = gNB->frame_parms.N_RB_DL;
678

679 680 681 682
  /* no RU: need to have rxdata */
  c16_t **rxdata;
  rxdata = malloc(n_rx * sizeof(*rxdata));
  for (int i = 0; i < n_rx; ++i)
683
    rxdata[i] = calloc(gNB->frame_parms.samples_per_frame * sizeof(**rxdata),1);
684 685 686

  NR_BWP_Uplink_t *ubwp=secondaryCellGroup->spCellConfig->spCellConfigDedicated->uplinkConfig->uplinkBWP_ToAddModList->list.array[0];

687 688 689 690 691 692 693 694 695 696 697
  // Configure channel model
  UE2gNB = new_channel_desc_scm(n_tx,
                                n_rx,
                                channel_model,
                                sampling_frequency / 1e6,
                                frame_parms->ul_CarrierFreq,
                                tx_bandwidth,
                                DS_TDL,
                                maxDoppler,
                                corr_level,
                                0,
698
                                delay,
699 700
                                0,
                                0);
701

702 703 704 705
  if (UE2gNB == NULL) {
    printf("Problem generating channel model. Exiting.\n");
    exit(-1);
  }
706

707
  // Configure UE
708
  UE = calloc(sizeof(PHY_VARS_NR_UE), 1);
Florian Kaltenberger's avatar
Florian Kaltenberger committed
709 710 711
  PHY_vars_UE_g = malloc(sizeof(PHY_VARS_NR_UE**));
  PHY_vars_UE_g[0] = malloc(sizeof(PHY_VARS_NR_UE*));
  PHY_vars_UE_g[0][0] = UE;
712
  memcpy(&UE->frame_parms, frame_parms, sizeof(NR_DL_FRAME_PARMS));
713
  UE->frame_parms.nb_antennas_tx = n_tx;
714
  UE->frame_parms.nb_antennas_rx = 0;
715

716
  if (init_nr_ue_signal(UE, 1) != 0) {
717 718 719 720
    printf("Error at UE NR initialisation\n");
    exit(-1);
  }

721
  init_nr_ue_transport(UE);
722

francescomani's avatar
francescomani committed
723 724 725 726
  for(int n_scid = 0; n_scid<2; n_scid++) {
    UE->scramblingID_ulsch[n_scid] = frame_parms->Nid_cell;
    nr_init_pusch_dmrs(UE, frame_parms->Nid_cell, n_scid);
  }
727 728

  //Configure UE
Robert Schmidt's avatar
Robert Schmidt committed
729 730 731
  NR_UE_RRC_INST_t rrcue = {0};
  rrcue.mib = mib->message.choice.mib;
  rrcue.scell_group_config = secondaryCellGroup;
732 733
  nr_l2_init_ue(&rrcue);

734 735 736 737 738 739 740 741 742 743 744 745
  NR_UE_MAC_INST_t* UE_mac = get_mac_inst(0);
  
  UE->if_inst = nr_ue_if_module_init(0);
  UE->if_inst->scheduled_response = nr_ue_scheduled_response;
  UE->if_inst->phy_config_request = nr_ue_phy_config_request;
  UE->if_inst->dl_indication = nr_ue_dl_indication;
  UE->if_inst->ul_indication = nr_ue_ul_indication;
  
  UE_mac->if_module = nr_ue_if_module_init(0);

  nr_ue_phy_config_request(&UE_mac->phy_config);

746
  unsigned char harq_pid = 0;
747

francescomani's avatar
francescomani committed
748
  NR_gNB_ULSCH_t *ulsch_gNB = &gNB->ulsch[UE_id];
Hongzhi Wang's avatar
Hongzhi Wang committed
749

francescomani's avatar
francescomani committed
750
  // nfapi_nr_ul_config_ulsch_pdu *rel15_ul = &ulsch_gNB->harq_process->ulsch_pdu;
751 752
  NR_Sched_Rsp_t *Sched_INFO = malloc(sizeof(*Sched_INFO));
  memset((void*)Sched_INFO,0,sizeof(*Sched_INFO));
753 754
  nfapi_nr_ul_tti_request_t *UL_tti_req = &Sched_INFO->UL_tti_req;
  Sched_INFO->sched_response_id = -1;
755

756
  nr_phy_data_tx_t phy_data = {0};
757

758
  uint32_t errors_decoding = 0;
759

760 761 762
  nr_scheduled_response_t scheduled_response={0};
  fapi_nr_ul_config_request_t ul_config={0};
  fapi_nr_tx_request_t tx_req={0};
763

764 765 766 767 768
  uint8_t ptrs_mcs1 = 2;
  uint8_t ptrs_mcs2 = 4;
  uint8_t ptrs_mcs3 = 10;
  uint16_t n_rb0 = 25;
  uint16_t n_rb1 = 75;
dir's avatar
dir committed
769
  
770
  uint16_t pdu_bit_map = PUSCH_PDU_BITMAP_PUSCH_DATA; // | PUSCH_PDU_BITMAP_PUSCH_PTRS;
771
  uint8_t crc_status = 0;
772

dir's avatar
dir committed
773 774
  unsigned char mod_order = nr_get_Qm_ul(Imcs, mcs_table);
  uint16_t      code_rate = nr_get_code_rate_ul(Imcs, mcs_table);
775 776 777 778 779

  uint8_t mapping_type = typeB; // Default Values
  pusch_dmrs_type_t dmrs_config_type = pusch_dmrs_type1; // Default Values
  pusch_dmrs_AdditionalPosition_t add_pos = pusch_dmrs_pos0; // Default Values

780 781
  /* validate parameters othwerwise default values are used */
  /* -U flag can be used to set DMRS parameters*/
782
  if(modify_dmrs) {
783
    if(dmrs_arg[0] == 0)
784
      mapping_type = typeA;
785
    else if (dmrs_arg[0] == 1)
786
      mapping_type = typeB;
787 788 789
    /* Additional DMRS positions */
    if(dmrs_arg[1] >= 0 && dmrs_arg[1] <=3 )
      add_pos = dmrs_arg[1];
790
    /* DMRS Conf Type 1 or 2 */
791
    if(dmrs_arg[2] == 1)
792
      dmrs_config_type = pusch_dmrs_type1;
793
    else if(dmrs_arg[2] == 2)
794
      dmrs_config_type = pusch_dmrs_type2;
795
    num_dmrs_cdm_grps_no_data = dmrs_arg[3];
796 797 798
  }

  uint8_t  length_dmrs         = pusch_len1;
799
  uint16_t l_prime_mask        = get_l_prime(nb_symb_sch, mapping_type, add_pos, length_dmrs, start_symbol, NR_MIB__dmrs_TypeA_Position_pos2);
800
  uint16_t number_dmrs_symbols = get_dmrs_symbols_in_slot(l_prime_mask, nb_symb_sch);
801
  printf("num dmrs sym %d\n",number_dmrs_symbols);
802
  uint8_t  nb_re_dmrs          = (dmrs_config_type == pusch_dmrs_type1) ? 6 : 4;
dir's avatar
dir committed
803

804 805 806 807 808 809
  uint32_t tbslbrm = 0;
  if (ilbrm)
    tbslbrm = nr_compute_tbslbrm(mcs_table,
                                 N_RB_UL,
                                 precod_nbr_layers);

810
  if ((UE->frame_parms.nb_antennas_tx==4)&&(precod_nbr_layers==4))
811
    num_dmrs_cdm_grps_no_data = 2;
812

813
  if (transform_precoding == transformPrecoder_enabled) {
dir's avatar
dir committed
814 815 816 817

    AssertFatal(enable_ptrs == 0, "PTRS NOT SUPPORTED IF TRANSFORM PRECODING IS ENABLED\n");

    int8_t index = get_index_for_dmrs_lowpapr_seq((NR_NB_SC_PER_RB/2) * nb_rb);
818
    AssertFatal(index >= 0, "Num RBs not configured according to 3GPP 38.211 section 6.3.1.4. For PUSCH with transform precoding, num RBs cannot be multiple of any other primenumber other than 2,3,5\n");
dir's avatar
dir committed
819 820
    
    dmrs_config_type = pusch_dmrs_type1;
821
    nb_re_dmrs       = 6;
dir's avatar
dir committed
822 823 824 825

    printf("[ULSIM]: TRANSFORM PRECODING ENABLED. Num RBs: %d, index for DMRS_SEQ: %d\n", nb_rb, index);
  }

826
  nb_re_dmrs = nb_re_dmrs * num_dmrs_cdm_grps_no_data;
dir's avatar
dir committed
827

828
  unsigned int available_bits  = nr_get_G(nb_rb, nb_symb_sch, nb_re_dmrs, number_dmrs_symbols, mod_order, precod_nbr_layers);
829 830
  unsigned int TBS             = nr_compute_tbs(mod_order, code_rate, nb_rb, nb_symb_sch, nb_re_dmrs * number_dmrs_symbols, 0, 0, precod_nbr_layers);

dir's avatar
dir committed
831
  
832 833 834 835
  printf("[ULSIM]: length_dmrs: %u, l_prime_mask: %u	number_dmrs_symbols: %u, mapping_type: %u add_pos: %d \n", length_dmrs, l_prime_mask, number_dmrs_symbols, mapping_type, add_pos);
  printf("[ULSIM]: CDM groups: %u, dmrs_config_type: %d, num_rbs: %u, nb_symb_sch: %u\n", num_dmrs_cdm_grps_no_data, dmrs_config_type, nb_rb, nb_symb_sch);
  printf("[ULSIM]: MCS: %d, mod order: %u, code_rate: %u\n", Imcs, mod_order, code_rate);
  printf("[ULSIM]: VALUE OF G: %u, TBS: %u\n", available_bits, TBS);
dir's avatar
dir committed
836 837 838
  

  
839 840 841 842
  uint8_t ulsch_input_buffer[TBS/8];

  ulsch_input_buffer[0] = 0x31;
  for (i = 1; i < TBS/8; i++) {
843
    ulsch_input_buffer[i] = (unsigned char) uniformrandom();
844 845
  }

846
  uint8_t ptrs_time_density = get_L_ptrs(ptrs_mcs1, ptrs_mcs2, ptrs_mcs3, Imcs, mcs_table);
847
  uint8_t ptrs_freq_density = get_K_ptrs(n_rb0, n_rb1, nb_rb);
848 849
  int     ptrs_symbols      = 0; // to calculate total PTRS RE's in a slot

850 851
  double ts = 1.0/(frame_parms->subcarrier_spacing * frame_parms->ofdm_symbol_size);

852
  /* -T option enable PTRS */
853
  if(enable_ptrs) {
854 855 856 857 858 859
    /* validate parameters othwerwise default values are used */
    if(ptrs_arg[0] == 0 || ptrs_arg[0] == 1 || ptrs_arg[0] == 2 )
      ptrs_time_density = ptrs_arg[0];
    if(ptrs_arg[1] == 2 || ptrs_arg[1] == 4 )
      ptrs_freq_density = ptrs_arg[1];
    pdu_bit_map |= PUSCH_PDU_BITMAP_PUSCH_PTRS;
860
    printf("NOTE: PTRS Enabled with L %d, K %d \n", ptrs_time_density, ptrs_freq_density );
861
  }
862

863
  if (input_fd != NULL || n_trials == 1) max_rounds=1;
864

laurent's avatar
laurent committed
865
  if (enable_ptrs && 1 << ptrs_time_density >= nb_symb_sch)
866
    pdu_bit_map &= ~PUSCH_PDU_BITMAP_PUSCH_PTRS; // disable PUSCH PTRS
867

868
  printf("\n");
869

870 871 872 873 874 875 876 877 878 879 880
  int frame_length_complex_samples = frame_parms->samples_per_subframe*NR_NUMBER_OF_SUBFRAMES_PER_FRAME;
  for (int aatx=0; aatx<n_tx; aatx++) {
    s_re[aatx] = calloc(1,frame_length_complex_samples*sizeof(double));
    s_im[aatx] = calloc(1,frame_length_complex_samples*sizeof(double));
  }

  for (int aarx=0; aarx<n_rx; aarx++) {
    r_re[aarx] = calloc(1,frame_length_complex_samples*sizeof(double));
    r_im[aarx] = calloc(1,frame_length_complex_samples*sizeof(double));
  }

Sakthivel Velumani's avatar
Sakthivel Velumani committed
881
  //for (int i=0;i<16;i++) printf("%f\n",gaussdouble(0.0,1.0));
882
  int read_errors=0;
883

884
  int slot_offset = frame_parms->get_samples_slot_timestamp(slot,frame_parms,0);
885 886 887 888 889 890
  int slot_length = slot_offset - frame_parms->get_samples_slot_timestamp(slot-1,frame_parms,0);

  if (input_fd != NULL)	{
    // 800 samples is N_TA_OFFSET for FR1 @ 30.72 Ms/s,
    AssertFatal(frame_parms->subcarrier_spacing==30000,"only 30 kHz for file input for now (%d)\n",frame_parms->subcarrier_spacing);
  
891 892 893 894 895 896 897 898 899 900 901 902 903 904 905 906 907 908 909 910 911 912 913 914
    if (params_from_file) {
      fseek(input_fd,file_offset*((slot_length<<2)+4000+16),SEEK_SET);
      read_errors+=fread((void*)&n_rnti,sizeof(int16_t),1,input_fd);
      printf("rnti %x\n",n_rnti);
      read_errors+=fread((void*)&nb_rb,sizeof(int16_t),1,input_fd);
      printf("nb_rb %d\n",nb_rb);
      int16_t dummy;
      read_errors+=fread((void*)&start_rb,sizeof(int16_t),1,input_fd);
      //fread((void*)&dummy,sizeof(int16_t),1,input_fd);
      printf("rb_start %d\n",start_rb);
      read_errors+=fread((void*)&nb_symb_sch,sizeof(int16_t),1,input_fd);
      //fread((void*)&dummy,sizeof(int16_t),1,input_fd);
      printf("nb_symb_sch %d\n",nb_symb_sch);
      read_errors+=fread((void*)&start_symbol,sizeof(int16_t),1,input_fd);
      printf("start_symbol %d\n",start_symbol);
      read_errors+=fread((void*)&Imcs,sizeof(int16_t),1,input_fd);
      printf("mcs %d\n",Imcs);
      read_errors+=fread((void*)&rv_index,sizeof(int16_t),1,input_fd);
      printf("rv_index %d\n",rv_index);
      //    fread((void*)&harq_pid,sizeof(int16_t),1,input_fd);
      read_errors+=fread((void*)&dummy,sizeof(int16_t),1,input_fd);
      printf("harq_pid %d\n",harq_pid);
    }
    fseek(input_fd,file_offset*sizeof(int16_t)*2,SEEK_SET);
915 916
    for (int irx=0; irx<frame_parms->nb_antennas_rx; irx++) {
      fseek(input_fd,irx*(slot_length+15)*sizeof(int16_t)*2,SEEK_SET); // matlab adds samlples to the end to emulate channel delay
917
      read_errors += fread((void *)&rxdata[irx][slot_offset-delay], sizeof(int16_t), slot_length<<1, input_fd);
918 919 920 921
      if (read_errors==0) {
        printf("error reading file\n");
        exit(1);
      }
922 923 924 925 926
      for (int i=0;i<16;i+=2)
        printf("slot_offset %d : %d,%d\n",
               slot_offset,
               rxdata[irx][slot_offset].r,
               rxdata[irx][slot_offset].i);
927
    }
Raymond Knopp's avatar
Raymond Knopp committed
928

929 930
    mod_order = nr_get_Qm_ul(Imcs, mcs_table);
    code_rate = nr_get_code_rate_ul(Imcs, mcs_table);
931
  }
932 933

  int ret = 1;
francescomani's avatar
francescomani committed
934 935
  for (SNR = snr0; SNR <= snr1; SNR += snr_step) {

Sakthivel Velumani's avatar
Sakthivel Velumani committed
936
    varArray_t *table_rx=initVarArray(1000,sizeof(double));
937 938
    int error_flag = 0;
    n_false_positive = 0;
939 940 941
    effRate = 0;
    effTP = 0;
    roundStats = 0;
Sakthivel Velumani's avatar
fixes  
Sakthivel Velumani committed
942 943 944 945 946 947 948 949 950 951 952
    reset_meas(&gNB->phy_proc_rx);
    reset_meas(&gNB->rx_pusch_stats);
    reset_meas(&gNB->ulsch_decoding_stats);
    reset_meas(&gNB->ulsch_deinterleaving_stats);
    reset_meas(&gNB->ulsch_rate_unmatching_stats);
    reset_meas(&gNB->ulsch_ldpc_decoding_stats);
    reset_meas(&gNB->ulsch_unscrambling_stats);
    reset_meas(&gNB->ulsch_channel_estimation_stats);
    reset_meas(&gNB->ulsch_llr_stats);
    reset_meas(&gNB->ulsch_channel_compensation_stats);
    reset_meas(&gNB->ulsch_rbs_extraction_stats);
953 954 955 956
    reset_meas(&UE->ulsch_ldpc_encoding_stats);
    reset_meas(&UE->ulsch_rate_matching_stats);
    reset_meas(&UE->ulsch_interleaving_stats);
    reset_meas(&UE->ulsch_encoding_stats);
957 958 959 960 961 962 963 964
    reset_meas(&gNB->rx_srs_stats);
    reset_meas(&gNB->generate_srs_stats);
    reset_meas(&gNB->get_srs_signal_stats);
    reset_meas(&gNB->srs_channel_estimation_stats);
    reset_meas(&gNB->srs_timing_advance_stats);
    reset_meas(&gNB->srs_report_tlv_stats);
    reset_meas(&gNB->srs_beam_report_stats);
    reset_meas(&gNB->srs_iq_matrix_stats);
965

966 967 968 969 970 971
    uint32_t errors_scrambling[16] = {0};
    int n_errors[16] = {0};
    int round_trials[16] = {0};
    double blerStats[16] = {0};
    double berStats[16] = {0};

972 973 974 975 976
    uint64_t sum_pusch_delay = 0;
    int min_pusch_delay = INT_MAX;
    int max_pusch_delay = INT_MIN;
    int delay_pusch_est_count = 0;

Sakthivel Velumani's avatar
Sakthivel Velumani committed
977
    for (trial = 0; trial < n_trials; trial++) {
978

979 980 981
      uint8_t round = 0;
      crc_status = 1;
      errors_decoding = 0;
982

983
      while (round < max_rounds && crc_status) {
984

985 986 987
        round_trials[round]++;
        rv_index = nr_rv_round_map[round % 4];

988
        /// gNB UL PDUs
989 990 991

        UL_tti_req->SFN = frame;
        UL_tti_req->Slot = slot;
992 993 994 995 996 997 998
        UL_tti_req->n_pdus = do_SRS == 1 ? 2 : 1;

        nfapi_nr_ul_tti_request_number_of_pdus_t *pdu_element0 = &UL_tti_req->pdus_list[0];
        pdu_element0->pdu_type = NFAPI_NR_UL_CONFIG_PUSCH_PDU_TYPE;
        pdu_element0->pdu_size = sizeof(nfapi_nr_pusch_pdu_t);

        nfapi_nr_pusch_pdu_t *pusch_pdu = &pdu_element0->pusch_pdu;
999 1000 1001 1002 1003 1004 1005 1006 1007 1008 1009 1010 1011 1012 1013 1014 1015 1016
        memset(pusch_pdu, 0, sizeof(nfapi_nr_pusch_pdu_t));

        int abwp_size = NRRIV2BW(ubwp->bwp_Common->genericParameters.locationAndBandwidth, 275);
        int abwp_start = NRRIV2PRBOFFSET(ubwp->bwp_Common->genericParameters.locationAndBandwidth, 275);
        int ibwp_size = ibwps;
        int ibwp_start = ibwp_rboffset;
        if (msg3_flag == 1) {
          if ((ibwp_start < abwp_start) || (ibwp_size > abwp_size))
            pusch_pdu->bwp_start = abwp_start;
          else
            pusch_pdu->bwp_start = ibwp_start;
          pusch_pdu->bwp_size = ibwp_size;
          start_rb = (ibwp_start - abwp_start);
          printf("msg3: ibwp_size %d, abwp_size %d, ibwp_start %d, abwp_start %d\n", ibwp_size, abwp_size, ibwp_start, abwp_start);
        } else {
          pusch_pdu->bwp_start = abwp_start;
          pusch_pdu->bwp_size = abwp_size;
        }
1017

1018 1019 1020 1021 1022 1023 1024 1025 1026 1027 1028 1029 1030 1031 1032 1033 1034 1035 1036 1037 1038 1039 1040 1041 1042 1043 1044
        pusch_pdu->pusch_data.tb_size = TBS >> 3;
        pusch_pdu->pdu_bit_map = pdu_bit_map;
        pusch_pdu->rnti = n_rnti;
        pusch_pdu->mcs_index = Imcs;
        pusch_pdu->mcs_table = mcs_table;
        pusch_pdu->target_code_rate = code_rate;
        pusch_pdu->qam_mod_order = mod_order;
        pusch_pdu->transform_precoding = transform_precoding;
        pusch_pdu->data_scrambling_id = *scc->physCellId;
        pusch_pdu->nrOfLayers = precod_nbr_layers;
        pusch_pdu->ul_dmrs_symb_pos = l_prime_mask;
        pusch_pdu->dmrs_config_type = dmrs_config_type;
        pusch_pdu->ul_dmrs_scrambling_id = *scc->physCellId;
        pusch_pdu->scid = 0;
        pusch_pdu->dmrs_ports = ((1 << precod_nbr_layers) - 1);
        pusch_pdu->num_dmrs_cdm_grps_no_data = num_dmrs_cdm_grps_no_data;
        pusch_pdu->resource_alloc = 1;
        pusch_pdu->rb_start = start_rb;
        pusch_pdu->rb_size = nb_rb;
        pusch_pdu->vrb_to_prb_mapping = 0;
        pusch_pdu->frequency_hopping = 0;
        pusch_pdu->uplink_frequency_shift_7p5khz = 0;
        pusch_pdu->start_symbol_index = start_symbol;
        pusch_pdu->nr_of_symbols = nb_symb_sch;
        pusch_pdu->maintenance_parms_v3.tbSizeLbrmBytes = tbslbrm;
        pusch_pdu->pusch_data.rv_index = rv_index;
        pusch_pdu->pusch_data.harq_process_id = 0;
francescomani's avatar
francescomani committed
1045
        pusch_pdu->pusch_data.new_data_indicator = round == 0 ? 1 : 0;
1046 1047 1048 1049 1050 1051 1052 1053 1054 1055 1056 1057 1058
        pusch_pdu->pusch_data.num_cb = 0;
        pusch_pdu->pusch_ptrs.ptrs_time_density = ptrs_time_density;
        pusch_pdu->pusch_ptrs.ptrs_freq_density = ptrs_freq_density;
        pusch_pdu->pusch_ptrs.ptrs_ports_list = (nfapi_nr_ptrs_ports_t *)malloc(2 * sizeof(nfapi_nr_ptrs_ports_t));
        pusch_pdu->pusch_ptrs.ptrs_ports_list[0].ptrs_re_offset = 0;
        pusch_pdu->maintenance_parms_v3.ldpcBaseGraph = get_BG(TBS, code_rate);

        // if transform precoding is enabled
        if (transform_precoding == transformPrecoder_enabled) {
          pusch_pdu->dfts_ofdm.low_papr_group_number = *scc->physCellId % 30; // U as defined in 38.211 section 6.4.1.1.1.2
          pusch_pdu->dfts_ofdm.low_papr_sequence_number = 0; // V as defined in 38.211 section 6.4.1.1.1.2
          pusch_pdu->num_dmrs_cdm_grps_no_data = num_dmrs_cdm_grps_no_data;
        }
1059

1060 1061 1062 1063 1064 1065 1066 1067 1068 1069 1070 1071 1072 1073 1074 1075 1076 1077 1078 1079 1080 1081 1082 1083 1084 1085 1086 1087 1088 1089 1090 1091 1092 1093 1094 1095
        if (do_SRS == 1) {
          const uint16_t m_SRS[64] = { 4, 8, 12, 16, 16, 20, 24, 24, 28, 32, 36, 40, 48, 48, 52, 56, 60, 64, 72, 72, 76, 80, 88,
                                      96, 96, 104, 112, 120, 120, 120, 128, 128, 128, 132, 136, 144, 144, 144, 144, 152, 160,
                                      160, 160, 168, 176, 184, 192, 192, 192, 192, 208, 216, 224, 240, 240, 240, 240, 256, 256,
                                      256, 264, 272, 272, 272 };
          nfapi_nr_ul_tti_request_number_of_pdus_t *pdu_element1 = &UL_tti_req->pdus_list[1];
          pdu_element1->pdu_type = NFAPI_NR_UL_CONFIG_SRS_PDU_TYPE;
          pdu_element1->pdu_size = sizeof(nfapi_nr_srs_pdu_t);
          nfapi_nr_srs_pdu_t *srs_pdu = &pdu_element1->srs_pdu;
          memset(srs_pdu, 0, sizeof(nfapi_nr_srs_pdu_t));
          srs_pdu->rnti = n_rnti;
          srs_pdu->bwp_size = NRRIV2BW(ubwp->bwp_Common->genericParameters.locationAndBandwidth, 275);
          srs_pdu->bwp_start = NRRIV2PRBOFFSET(ubwp->bwp_Common->genericParameters.locationAndBandwidth, 275);
          srs_pdu->subcarrier_spacing = frame_parms->subcarrier_spacing;
          srs_pdu->num_ant_ports = n_tx == 4 ? 2 : n_tx == 2 ? 1 : 0;
          srs_pdu->sequence_id = 40;
          srs_pdu->config_index = rrc_get_max_nr_csrs(srs_pdu->bwp_size, srs_pdu->bandwidth_index);
          srs_pdu->resource_type = NR_SRS_Resource__resourceType_PR_periodic;
          srs_pdu->t_srs = 1;
          srs_pdu->srs_parameters_v4.srs_bandwidth_size = m_SRS[srs_pdu->config_index];
          srs_pdu->srs_parameters_v4.usage = 1 << NR_SRS_ResourceSet__usage_codebook;
          srs_pdu->srs_parameters_v4.report_type[0] = 1;
          srs_pdu->srs_parameters_v4.iq_representation = 1;
          srs_pdu->srs_parameters_v4.prg_size = 1;
          srs_pdu->srs_parameters_v4.num_total_ue_antennas = 1 << srs_pdu->num_ant_ports;
          srs_pdu->beamforming.num_prgs = m_SRS[srs_pdu->config_index];
          srs_pdu->beamforming.prg_size = 1;
        }

        /// UE UL PDUs

        UE->ul_harq_processes[harq_pid].round = round;
        UE_proc.nr_slot_tx = slot;
        UE_proc.frame_tx = frame;
        UE_proc.gNB_id = 0;

1096 1097 1098 1099 1100 1101 1102 1103 1104 1105 1106 1107 1108
        // prepare ULSCH/PUSCH reception
        pushNotifiedFIFO(&gNB->L1_tx_free, msgL1Tx); // to unblock the process in the beginning
        nr_schedule_response(Sched_INFO);

        // --------- setting parameters for UE --------

        scheduled_response.module_id = 0;
        scheduled_response.CC_id = 0;
        scheduled_response.frame = frame;
        scheduled_response.slot = slot;
        scheduled_response.dl_config = NULL;
        scheduled_response.ul_config = &ul_config;
        scheduled_response.tx_request = &tx_req;
1109
        scheduled_response.phy_data = (void *)&phy_data;
1110 1111 1112 1113

        // Config UL TX PDU
        tx_req.slot = slot;
        tx_req.sfn = frame;
1114 1115
        tx_req.number_of_pdus = 1; //do_SRS == 1 ? 2 : 1;

1116 1117 1118 1119 1120
        tx_req.tx_request_body[0].pdu_length = TBS / 8;
        tx_req.tx_request_body[0].pdu_index = 0;
        tx_req.tx_request_body[0].pdu = &ulsch_input_buffer[0];

        ul_config.slot = slot;
1121 1122 1123 1124 1125 1126 1127 1128 1129 1130 1131 1132 1133 1134 1135 1136 1137 1138 1139 1140 1141 1142 1143 1144 1145 1146 1147 1148 1149 1150 1151
        ul_config.number_pdus = do_SRS == 1 ? 2 : 1;

        fapi_nr_ul_config_request_pdu_t *ul_config0 = &ul_config.ul_config_list[0];
        ul_config0->pdu_type = FAPI_NR_UL_CONFIG_TYPE_PUSCH;
        nfapi_nr_ue_pusch_pdu_t *pusch_config_pdu = &ul_config0->pusch_config_pdu;
        pusch_config_pdu->rnti = n_rnti;
        pusch_config_pdu->pdu_bit_map = pdu_bit_map;
        pusch_config_pdu->qam_mod_order = mod_order;
        pusch_config_pdu->rb_size = nb_rb;
        pusch_config_pdu->rb_start = start_rb;
        pusch_config_pdu->nr_of_symbols = nb_symb_sch;
        pusch_config_pdu->start_symbol_index = start_symbol;
        pusch_config_pdu->ul_dmrs_symb_pos = l_prime_mask;
        pusch_config_pdu->dmrs_config_type = dmrs_config_type;
        pusch_config_pdu->mcs_index = Imcs;
        pusch_config_pdu->mcs_table = mcs_table;
        pusch_config_pdu->num_dmrs_cdm_grps_no_data = num_dmrs_cdm_grps_no_data;
        pusch_config_pdu->nrOfLayers = precod_nbr_layers;
        pusch_config_pdu->dmrs_ports = ((1 << precod_nbr_layers) - 1);
        pusch_config_pdu->absolute_delta_PUSCH = 0;
        pusch_config_pdu->target_code_rate = code_rate;
        pusch_config_pdu->tbslbrm = tbslbrm;
        pusch_config_pdu->pusch_data.tb_size = TBS / 8;
        pusch_config_pdu->pusch_data.new_data_indicator = trial & 0x1;
        pusch_config_pdu->pusch_data.rv_index = rv_index;
        pusch_config_pdu->pusch_data.harq_process_id = harq_pid;
        pusch_config_pdu->pusch_ptrs.ptrs_time_density = ptrs_time_density;
        pusch_config_pdu->pusch_ptrs.ptrs_freq_density = ptrs_freq_density;
        pusch_config_pdu->pusch_ptrs.ptrs_ports_list = (nfapi_nr_ue_ptrs_ports_t *)malloc(2 * sizeof(nfapi_nr_ue_ptrs_ports_t));
        pusch_config_pdu->pusch_ptrs.ptrs_ports_list[0].ptrs_re_offset = 0;
        pusch_config_pdu->transform_precoding = transform_precoding;
1152 1153
        // if transform precoding is enabled
        if (transform_precoding == transformPrecoder_enabled) {
1154 1155 1156 1157
          pusch_config_pdu->dfts_ofdm.low_papr_group_number = *scc->physCellId % 30; // U as defined in 38.211 section 6.4.1.1.1.2
          pusch_config_pdu->dfts_ofdm.low_papr_sequence_number = 0; // V as defined in 38.211 section 6.4.1.1.1.2
          // pusch_config_pdu->pdu_bit_map |= PUSCH_PDU_BITMAP_DFTS_OFDM;
          pusch_config_pdu->num_dmrs_cdm_grps_no_data = num_dmrs_cdm_grps_no_data;
1158
        }
dir's avatar
dir committed
1159

1160 1161 1162 1163 1164 1165 1166 1167 1168 1169 1170 1171 1172 1173 1174
        if (do_SRS == 1) {
          fapi_nr_ul_config_request_pdu_t *ul_config1 = &ul_config.ul_config_list[1];
          ul_config1->pdu_type = FAPI_NR_UL_CONFIG_TYPE_SRS;
          fapi_nr_ul_config_srs_pdu *srs_config_pdu = &ul_config1->srs_config_pdu;
          memset(srs_config_pdu, 0, sizeof(fapi_nr_ul_config_srs_pdu));
          srs_config_pdu->rnti = n_rnti;
          srs_config_pdu->bwp_size = NRRIV2BW(ubwp->bwp_Common->genericParameters.locationAndBandwidth, 275);
          srs_config_pdu->bwp_start = NRRIV2PRBOFFSET(ubwp->bwp_Common->genericParameters.locationAndBandwidth, 275);
          srs_config_pdu->subcarrier_spacing = frame_parms->subcarrier_spacing;
          srs_config_pdu->num_ant_ports = n_tx == 4 ? 2 : n_tx == 2 ? 1 : 0;
          srs_config_pdu->config_index = rrc_get_max_nr_csrs(srs_config_pdu->bwp_size, srs_config_pdu->bandwidth_index);
          srs_config_pdu->sequence_id = 40;
          srs_config_pdu->resource_type = NR_SRS_Resource__resourceType_PR_periodic;
          srs_config_pdu->t_srs = 1;
        }
1175 1176

        for (int i = 0; i < (TBS / 8); i++)
1177
          UE->ul_harq_processes[harq_pid].a[i] = i & 0xff;
1178

1179 1180 1181 1182 1183 1184 1185
        if (input_fd == NULL) {
          // set FAPI parameters for UE, put them in the scheduled response and call
          nr_ue_scheduled_response(&scheduled_response);

          /////////////////////////phy_procedures_nr_ue_TX///////////////////////
          ///////////

1186
          phy_procedures_nrUE_TX(UE, &UE_proc, &phy_data);
1187 1188 1189 1190 1191 1192 1193 1194 1195 1196 1197 1198 1199

          if (n_trials == 1) {
            LOG_M("txsig0.m", "txs0", &UE->common_vars.txdata[0][slot_offset], slot_length, 1, 1);
            LOG_M("txsig0F.m", "txs0F", UE->common_vars.txdataF[0], frame_parms->ofdm_symbol_size * 14, 1, 1);
            if (precod_nbr_layers > 1) {
              LOG_M("txsig1.m", "txs1", &UE->common_vars.txdata[1][slot_offset], slot_length, 1, 1);
              LOG_M("txsig1F.m", "txs1F", UE->common_vars.txdataF[1], frame_parms->ofdm_symbol_size * 14, 1, 1);
              if (precod_nbr_layers == 4) {
                LOG_M("txsig2.m", "txs2", &UE->common_vars.txdata[2][slot_offset], slot_length, 1, 1);
                LOG_M("txsig3.m", "txs3", &UE->common_vars.txdata[3][slot_offset], slot_length, 1, 1);
                LOG_M("txsig2F.m", "txs2F", UE->common_vars.txdataF[2], frame_parms->ofdm_symbol_size * 14, 1, 1);
                LOG_M("txsig3F.m", "txs3F", UE->common_vars.txdataF[3], frame_parms->ofdm_symbol_size * 14, 1, 1);
              }
1200 1201
            }
          }
1202 1203 1204 1205 1206
          ///////////
          ////////////////////////////////////////////////////
          tx_offset = frame_parms->get_samples_slot_timestamp(slot, frame_parms, 0);
          txlev_sum = 0;
          for (int aa = 0; aa < UE->frame_parms.nb_antennas_tx; aa++) {
1207
            atxlev[aa] = signal_energy((int32_t *)&UE->common_vars.txdata[aa][tx_offset + 5 * frame_parms->ofdm_symbol_size + 4 * frame_parms->nb_prefix_samples + frame_parms->nb_prefix_samples0],
1208 1209 1210 1211 1212 1213 1214 1215 1216 1217 1218 1219 1220 1221 1222 1223 1224 1225 1226 1227 1228 1229 1230 1231
                                       frame_parms->ofdm_symbol_size + frame_parms->nb_prefix_samples);

            txlev_sum += atxlev[aa];

            if (n_trials == 1)
              printf("txlev[%d] = %d (%f dB) txlev_sum %d\n", aa, atxlev[aa], 10 * log10((double)atxlev[aa]), txlev_sum);
          }
        } else
          n_trials = 1;

        if (input_fd == NULL) {
          // Justification of division by precod_nbr_layers:
          // When the channel is the identity matrix, the results in terms of SNR should be almost equal for 2x2 and 4x4.
          sigma_dB = 10 * log10((double)txlev_sum / precod_nbr_layers * ((double)frame_parms->ofdm_symbol_size / (12 * nb_rb))) - SNR;
          sigma = pow(10, sigma_dB / 10);

          if (n_trials == 1)
            printf("sigma %f (%f dB), txlev_sum %f (factor %f)\n", sigma, sigma_dB, 10 * log10((double)txlev_sum), (double)(double)frame_parms->ofdm_symbol_size / (12 * nb_rb));

          for (i = 0; i < slot_length; i++) {
            for (int aa = 0; aa < UE->frame_parms.nb_antennas_tx; aa++) {
              s_re[aa][i] = ((double)(((short *)&UE->common_vars.txdata[aa][slot_offset]))[(i << 1)]);
              s_im[aa][i] = ((double)(((short *)&UE->common_vars.txdata[aa][slot_offset]))[(i << 1) + 1]);
            }
1232
          }
1233

1234
          multipath_channel(UE2gNB, s_re, s_im, r_re, r_im, slot_length, 0, (n_trials == 1) ? 1 : 0);
1235
          add_noise(rxdata, (const double **) r_re, (const double **) r_im, sigma, slot_length, slot_offset, ts, delay, pdu_bit_map, frame_parms->nb_antennas_rx);
1236

1237
        } /*End input_fd */
1238

1239 1240 1241 1242 1243 1244
        if (pusch_pdu->pdu_bit_map & PUSCH_PDU_BITMAP_PUSCH_PTRS) {
          set_ptrs_symb_idx(&ptrsSymPos, pusch_pdu->nr_of_symbols, pusch_pdu->start_symbol_index, 1 << ptrs_time_density, pusch_pdu->ul_dmrs_symb_pos);
          ptrsSymbPerSlot = get_ptrs_symbols_in_slot(ptrsSymPos, pusch_pdu->start_symbol_index, pusch_pdu->nr_of_symbols);
          ptrsRePerSymb = ((pusch_pdu->rb_size + ptrs_freq_density - 1) / ptrs_freq_density);
          LOG_D(PHY, "[ULSIM] PTRS Symbols in a slot: %2u, RE per Symbol: %3u, RE in a slot %4d\n", ptrsSymbPerSlot, ptrsRePerSymb, ptrsSymbPerSlot * ptrsRePerSymb);
        }
1245

1246 1247 1248 1249 1250
        //----------------------------------------------------------
        //------------------- gNB phy procedures -------------------
        //----------------------------------------------------------
        gNB->UL_INFO.rx_ind.number_of_pdus = 0;
        gNB->UL_INFO.crc_ind.number_crcs = 0;
1251
        gNB->UL_INFO.srs_ind.number_of_pdus = 0;
1252

1253 1254 1255
        for(uint8_t symbol = 0; symbol < (gNB->frame_parms.Ncp == EXTENDED ? 12 : 14); symbol++) {
          for (int aa = 0; aa < gNB->frame_parms.nb_antennas_rx; aa++)
            nr_slot_fep_ul(&gNB->frame_parms,
1256 1257
                           (int32_t *)rxdata[aa],
                           (int32_t *)gNB->common_vars.rxdataF[aa],
1258 1259 1260 1261 1262 1263 1264 1265 1266 1267
                           symbol,
                           slot,
                           0);
        }

        for (int aa = 0; aa < gNB->frame_parms.nb_antennas_rx; aa++)  {
          apply_nr_rotation_ul(&gNB->frame_parms,
                               gNB->common_vars.rxdataF[aa],
                               slot,
                               0,
1268
                               gNB->frame_parms.Ncp == EXTENDED ? 12 : 14);
1269
        }
1270

1271
        ul_proc_error = phy_procedures_gNB_uespec_RX(gNB, frame, slot);
1272

1273 1274 1275 1276 1277 1278 1279 1280 1281 1282 1283 1284 1285
        if (n_trials == 1 && round == 0) {
          LOG_M("rxsig0.m", "rx0", &rxdata[0][slot_offset], slot_length, 1, 1);
          LOG_M("rxsigF0.m", "rxsF0", gNB->common_vars.rxdataF[0], 14 * frame_parms->ofdm_symbol_size, 1, 1);
          if (precod_nbr_layers > 1) {
            LOG_M("rxsig1.m", "rx1", &rxdata[1][slot_offset], slot_length, 1, 1);
            LOG_M("rxsigF1.m", "rxsF1", gNB->common_vars.rxdataF[1], 14 * frame_parms->ofdm_symbol_size, 1, 1);
            if (precod_nbr_layers == 4) {
              LOG_M("rxsig2.m", "rx2", &rxdata[2][slot_offset], slot_length, 1, 1);
              LOG_M("rxsig3.m", "rx3", &rxdata[3][slot_offset], slot_length, 1, 1);
              LOG_M("rxsigF2.m", "rxsF2", gNB->common_vars.rxdataF[2], 14 * frame_parms->ofdm_symbol_size, 1, 1);
              LOG_M("rxsigF3.m", "rxsF3", gNB->common_vars.rxdataF[3], 14 * frame_parms->ofdm_symbol_size, 1, 1);
            }
          }
1286
        }
1287

francescomani's avatar
francescomani committed
1288
        NR_gNB_PUSCH *pusch_vars = &gNB->pusch_vars[UE_id];
1289 1290 1291 1292 1293
        if (n_trials == 1 && round == 0) {
          __attribute__((unused)) int off = ((nb_rb & 1) == 1) ? 4 : 0;

          LOG_M("rxsigF0_ext.m",
                "rxsF0_ext",
francescomani's avatar
francescomani committed
1294
                &pusch_vars->rxdataF_ext[0][start_symbol * NR_NB_SC_PER_RB * pusch_pdu->rb_size],
1295 1296 1297
                nb_symb_sch * (off + (NR_NB_SC_PER_RB * pusch_pdu->rb_size)),
                1,
                1);
francescomani's avatar
francescomani committed
1298 1299 1300 1301 1302 1303 1304
          LOG_M("chestF0.m",
                "chF0",
                &pusch_vars->ul_ch_estimates[0][start_symbol * frame_parms->ofdm_symbol_size],
                frame_parms->ofdm_symbol_size,
                1,
                1);
          LOG_M("chestT0.m", "chT0", &pusch_vars->ul_ch_estimates_time[0][0], frame_parms->ofdm_symbol_size, 1, 1);
1305 1306
          LOG_M("chestF0_ext.m",
                "chF0_ext",
francescomani's avatar
francescomani committed
1307
                &pusch_vars->ul_ch_estimates_ext[0][(start_symbol + 1) * (off + (NR_NB_SC_PER_RB * pusch_pdu->rb_size))],
1308 1309 1310 1311 1312
                (nb_symb_sch - 1) * (off + (NR_NB_SC_PER_RB * pusch_pdu->rb_size)),
                1,
                1);
          LOG_M("rxsigF0_comp.m",
                "rxsF0_comp",
francescomani's avatar
francescomani committed
1313
                &pusch_vars->rxdataF_comp[0][start_symbol * (off + (NR_NB_SC_PER_RB * pusch_pdu->rb_size))],
1314 1315 1316 1317 1318
                nb_symb_sch * (off + (NR_NB_SC_PER_RB * pusch_pdu->rb_size)),
                1,
                1);
          LOG_M("chmagF0.m",
                "chmF0",
francescomani's avatar
francescomani committed
1319
                &pusch_vars->ul_ch_mag[0][start_symbol * (off + (NR_NB_SC_PER_RB * pusch_pdu->rb_size))],
1320 1321 1322 1323 1324
                nb_symb_sch * (off + (NR_NB_SC_PER_RB * pusch_pdu->rb_size)),
                1,
                1);
          LOG_M("chmagbF0.m",
                "chmbF0",
francescomani's avatar
francescomani committed
1325
                &pusch_vars->ul_ch_magb[0][start_symbol * (off + (NR_NB_SC_PER_RB * pusch_pdu->rb_size))],
1326 1327 1328
                nb_symb_sch * (off + (NR_NB_SC_PER_RB * pusch_pdu->rb_size)),
                1,
                1);
francescomani's avatar
francescomani committed
1329 1330 1331 1332 1333 1334
          LOG_M("rxsigF0_llrlayers0.m",
                "rxsF0_llrlayers0",
                &pusch_vars->llr_layers[0][0],
                (nb_symb_sch - 1) * NR_NB_SC_PER_RB * pusch_pdu->rb_size * mod_order,
                1,
                0);
1335 1336 1337 1338

          if (precod_nbr_layers == 2) {
            LOG_M("rxsigF1_ext.m",
                  "rxsF1_ext",
francescomani's avatar
francescomani committed
1339
                  &pusch_vars->rxdataF_ext[1][start_symbol * NR_NB_SC_PER_RB * pusch_pdu->rb_size],
1340 1341 1342 1343
                  nb_symb_sch * (off + (NR_NB_SC_PER_RB * pusch_pdu->rb_size)),
                  1,
                  1);

francescomani's avatar
francescomani committed
1344 1345 1346 1347 1348 1349
            LOG_M("chestF3.m",
                  "chF3",
                  &pusch_vars->ul_ch_estimates[3][start_symbol * frame_parms->ofdm_symbol_size],
                  frame_parms->ofdm_symbol_size,
                  1,
                  1);
1350 1351 1352

            LOG_M("chestF3_ext.m",
                  "chF3_ext",
francescomani's avatar
francescomani committed
1353
                  &pusch_vars->ul_ch_estimates_ext[3][(start_symbol + 1) * (off + (NR_NB_SC_PER_RB * pusch_pdu->rb_size))],
1354 1355 1356 1357 1358 1359
                  (nb_symb_sch - 1) * (off + (NR_NB_SC_PER_RB * pusch_pdu->rb_size)),
                  1,
                  1);

            LOG_M("rxsigF2_comp.m",
                  "rxsF2_comp",
francescomani's avatar
francescomani committed
1360
                  &pusch_vars->rxdataF_comp[2][start_symbol * (off + (NR_NB_SC_PER_RB * pusch_pdu->rb_size))],
1361 1362 1363 1364
                  nb_symb_sch * (off + (NR_NB_SC_PER_RB * pusch_pdu->rb_size)),
                  1,
                  1);

francescomani's avatar
francescomani committed
1365 1366 1367 1368 1369 1370
            LOG_M("rxsigF0_llrlayers1.m",
                  "rxsF0_llrlayers1",
                  &pusch_vars->llr_layers[1][0],
                  (nb_symb_sch - 1) * NR_NB_SC_PER_RB * pusch_pdu->rb_size * mod_order,
                  1,
                  0);
1371
          }
1372

1373 1374 1375
          if (precod_nbr_layers == 4) {
            LOG_M("rxsigF1_ext.m",
                  "rxsF1_ext",
francescomani's avatar
francescomani committed
1376
                  &pusch_vars->rxdataF_ext[1][start_symbol * NR_NB_SC_PER_RB * pusch_pdu->rb_size],
1377 1378 1379 1380 1381
                  nb_symb_sch * (off + (NR_NB_SC_PER_RB * pusch_pdu->rb_size)),
                  1,
                  1);
            LOG_M("rxsigF2_ext.m",
                  "rxsF2_ext",
francescomani's avatar
francescomani committed
1382
                  &pusch_vars->rxdataF_ext[2][start_symbol * NR_NB_SC_PER_RB * pusch_pdu->rb_size],
1383 1384 1385 1386 1387
                  nb_symb_sch * (off + (NR_NB_SC_PER_RB * pusch_pdu->rb_size)),
                  1,
                  1);
            LOG_M("rxsigF3_ext.m",
                  "rxsF3_ext",
francescomani's avatar
francescomani committed
1388
                  &pusch_vars->rxdataF_ext[3][start_symbol * NR_NB_SC_PER_RB * pusch_pdu->rb_size],
1389 1390 1391 1392
                  nb_symb_sch * (off + (NR_NB_SC_PER_RB * pusch_pdu->rb_size)),
                  1,
                  1);

francescomani's avatar
francescomani committed
1393 1394 1395 1396 1397 1398 1399 1400 1401 1402 1403 1404 1405 1406 1407 1408 1409 1410
            LOG_M("chestF5.m",
                  "chF5",
                  &pusch_vars->ul_ch_estimates[5][start_symbol * frame_parms->ofdm_symbol_size],
                  frame_parms->ofdm_symbol_size,
                  1,
                  1);
            LOG_M("chestF10.m",
                  "chF10",
                  &pusch_vars->ul_ch_estimates[10][start_symbol * frame_parms->ofdm_symbol_size],
                  frame_parms->ofdm_symbol_size,
                  1,
                  1);
            LOG_M("chestF15.m",
                  "chF15",
                  &pusch_vars->ul_ch_estimates[15][start_symbol * frame_parms->ofdm_symbol_size],
                  frame_parms->ofdm_symbol_size,
                  1,
                  1);
1411 1412 1413

            LOG_M("chestF5_ext.m",
                  "chF5_ext",
francescomani's avatar
francescomani committed
1414
                  &pusch_vars->ul_ch_estimates_ext[5][(start_symbol + 1) * (off + (NR_NB_SC_PER_RB * pusch_pdu->rb_size))],
1415 1416 1417 1418 1419
                  (nb_symb_sch - 1) * (off + (NR_NB_SC_PER_RB * pusch_pdu->rb_size)),
                  1,
                  1);
            LOG_M("chestF10_ext.m",
                  "chF10_ext",
francescomani's avatar
francescomani committed
1420
                  &pusch_vars->ul_ch_estimates_ext[10][(start_symbol + 1) * (off + (NR_NB_SC_PER_RB * pusch_pdu->rb_size))],
1421 1422 1423 1424 1425
                  (nb_symb_sch - 1) * (off + (NR_NB_SC_PER_RB * pusch_pdu->rb_size)),
                  1,
                  1);
            LOG_M("chestF15_ext.m",
                  "chF15_ext",
francescomani's avatar
francescomani committed
1426
                  &pusch_vars->ul_ch_estimates_ext[15][(start_symbol + 1) * (off + (NR_NB_SC_PER_RB * pusch_pdu->rb_size))],
1427 1428 1429 1430 1431 1432
                  (nb_symb_sch - 1) * (off + (NR_NB_SC_PER_RB * pusch_pdu->rb_size)),
                  1,
                  1);

            LOG_M("rxsigF4_comp.m",
                  "rxsF4_comp",
francescomani's avatar
francescomani committed
1433
                  &pusch_vars->rxdataF_comp[4][start_symbol * (off + (NR_NB_SC_PER_RB * pusch_pdu->rb_size))],
1434 1435 1436 1437 1438
                  nb_symb_sch * (off + (NR_NB_SC_PER_RB * pusch_pdu->rb_size)),
                  1,
                  1);
            LOG_M("rxsigF8_comp.m",
                  "rxsF8_comp",
francescomani's avatar
francescomani committed
1439
                  &pusch_vars->rxdataF_comp[8][start_symbol * (off + (NR_NB_SC_PER_RB * pusch_pdu->rb_size))],
1440 1441 1442 1443 1444
                  nb_symb_sch * (off + (NR_NB_SC_PER_RB * pusch_pdu->rb_size)),
                  1,
                  1);
            LOG_M("rxsigF12_comp.m",
                  "rxsF12_comp",
francescomani's avatar
francescomani committed
1445
                  &pusch_vars->rxdataF_comp[12][start_symbol * (off + (NR_NB_SC_PER_RB * pusch_pdu->rb_size))],
1446 1447 1448
                  nb_symb_sch * (off + (NR_NB_SC_PER_RB * pusch_pdu->rb_size)),
                  1,
                  1);
francescomani's avatar
francescomani committed
1449 1450 1451 1452 1453 1454 1455 1456 1457 1458 1459 1460 1461 1462 1463 1464 1465 1466
            LOG_M("rxsigF0_llrlayers1.m",
                  "rxsF0_llrlayers1",
                  &pusch_vars->llr_layers[1][0],
                  (nb_symb_sch - 1) * NR_NB_SC_PER_RB * pusch_pdu->rb_size * mod_order,
                  1,
                  0);
            LOG_M("rxsigF0_llrlayers2.m",
                  "rxsF0_llrlayers2",
                  &pusch_vars->llr_layers[2][0],
                  (nb_symb_sch - 1) * NR_NB_SC_PER_RB * pusch_pdu->rb_size * mod_order,
                  1,
                  0);
            LOG_M("rxsigF0_llrlayers3.m",
                  "rxsF0_llrlayers3",
                  &pusch_vars->llr_layers[3][0],
                  (nb_symb_sch - 1) * NR_NB_SC_PER_RB * pusch_pdu->rb_size * mod_order,
                  1,
                  0);
1467
          }
1468

francescomani's avatar
francescomani committed
1469 1470 1471 1472 1473 1474
          LOG_M("rxsigF0_llr.m",
                "rxsF0_llr",
                &pusch_vars->llr[0],
                precod_nbr_layers * (nb_symb_sch - 1) * NR_NB_SC_PER_RB * pusch_pdu->rb_size * mod_order,
                1,
                0);
1475
        }
1476

francescomani's avatar
francescomani committed
1477
        if ((ulsch_gNB->last_iteration_cnt >= ulsch_gNB->max_ldpc_iterations + 1) || ul_proc_error == 1) {
1478 1479 1480 1481 1482 1483 1484 1485 1486 1487 1488 1489 1490 1491 1492
          error_flag = 1;
          n_errors[round]++;
          crc_status = 1;
        } else
          crc_status = 0;
        if (n_trials == 1)
          printf("end of round %d rv_index %d\n", round, rv_index);

        //----------------------------------------------------------
        //----------------- count and print errors -----------------
        //----------------------------------------------------------

        if ((pusch_pdu->pdu_bit_map & PUSCH_PDU_BITMAP_PUSCH_PTRS) && (SNR == snr0) && (trial == 0) && (round == 0)) {
          ptrs_symbols = 0;
          for (int i = pusch_pdu->start_symbol_index; i < pusch_pdu->start_symbol_index + pusch_pdu->nr_of_symbols; i++)
francescomani's avatar
francescomani committed
1493
            ptrs_symbols += ((pusch_vars->ptrs_symbols) >> i) & 1;
1494 1495 1496 1497 1498

          /*  2*5*(50/2), for RB = 50,K = 2 for 5 OFDM PTRS symbols */
          available_bits -= 2 * ptrs_symbols * ((nb_rb + ptrs_freq_density - 1) / ptrs_freq_density);
          printf("[ULSIM][PTRS] Available bits are: %5u, removed PTRS bits are: %5d \n", available_bits, (ptrsSymbPerSlot * ptrsRePerSymb * 2));
        }
1499

1500
        for (i = 0; i < available_bits; i++) {
francescomani's avatar
francescomani committed
1501 1502
          if (((UE->ul_harq_processes[harq_pid].f[i] == 0) && (pusch_vars->llr[i] <= 0))
              || ((UE->ul_harq_processes[harq_pid].f[i] == 1) && (pusch_vars->llr[i] >= 0))) {
1503 1504 1505 1506 1507 1508 1509
            /*if(errors_scrambling == 0)
              printf("\x1B[34m" "[frame %d][trial %d]\t1st bit in error in unscrambling = %d\n" "\x1B[0m", frame, trial, i);*/
            errors_scrambling[round]++;
          }
        }
        round++;
      } // round
1510

1511 1512
      if (n_trials == 1 && errors_scrambling[0] > 0) {
        printf("\x1B[31m""[frame %d][trial %d]\tnumber of errors in unscrambling = %u\n" "\x1B[0m", frame, trial, errors_scrambling[0]);
1513
      }
1514

1515
      for (i = 0; i < TBS; i++) {
1516 1517
        uint8_t estimated_output_bit = (ulsch_gNB->harq_process->b[i / 8] & (1 << (i & 7))) >> (i & 7);
        uint8_t test_input_bit = (UE->ul_harq_processes[harq_pid].b[i / 8] & (1 << (i & 7))) >> (i & 7);
1518
      
1519
        if (estimated_output_bit != test_input_bit) {
1520 1521 1522 1523
          /*if(errors_decoding == 0)
              printf("\x1B[34m""[frame %d][trial %d]\t1st bit in error in decoding     = %d\n" "\x1B[0m", frame, trial, i);*/
          errors_decoding++;
        }
1524
      }
1525
      if (n_trials == 1) {
1526 1527
        for (int r = 0; r < UE->ul_harq_processes[harq_pid].C; r++)
          for (int i = 0; i < UE->ul_harq_processes[harq_pid].K >> 3; i++) {
1528
            if ((UE->ul_harq_processes[harq_pid].c[r][i] ^ ulsch_gNB->harq_process->c[r][i]) != 0)
1529 1530
              printf("************");
            /*printf("r %d: in[%d] %x, out[%d] %x (%x)\n",r,
1531
              i,UE->ul_harq_processes[harq_pid].c[r][i],
1532 1533
              i,ulsch_gNB->harq_process->c[r][i],
              UE->ul_harq_processes[harq_pid].c[r][i]^ulsch_gNB->harq_process->c[r][i]);*/
1534 1535 1536 1537 1538 1539 1540 1541 1542 1543
          }
      }
      if (errors_decoding > 0 && error_flag == 0) {
        n_false_positive++;
        if (n_trials==1)
	  printf("\x1B[31m""[frame %d][trial %d]\tnumber of errors in decoding     = %u\n" "\x1B[0m", frame, trial, errors_decoding);
      } 
      roundStats += ((float)round);
      if (!crc_status)
        effRate += ((double)TBS) / (double)round;
1544

francescomani's avatar
francescomani committed
1545 1546 1547
      sum_pusch_delay += ulsch_gNB->delay.pusch_est_delay;
      min_pusch_delay = ulsch_gNB->delay.pusch_est_delay < min_pusch_delay ? ulsch_gNB->delay.pusch_est_delay : min_pusch_delay;
      max_pusch_delay = ulsch_gNB->delay.pusch_est_delay > max_pusch_delay ? ulsch_gNB->delay.pusch_est_delay : max_pusch_delay;
1548 1549
      delay_pusch_est_count++;

1550
    } // trial loop
1551 1552 1553

    roundStats/=((float)n_trials);
    effRate /= (double)n_trials;
1554 1555
    
    printf("*****************************************\n");
1556
    printf("SNR %f: n_errors (%d/%d", SNR, n_errors[0], round_trials[0]);
1557
    for (int r = 1; r < max_rounds; r++)
1558
      printf(",%d/%d", n_errors[r], round_trials[r]);
1559
    printf(") (negative CRC), false_positive %d/%d, errors_scrambling (%u/%u",
1560
           n_false_positive, n_trials, errors_scrambling[0], available_bits * round_trials[0]);
1561
    for (int r = 1; r < max_rounds; r++)
1562
      printf(",%u/%u", errors_scrambling[r], available_bits * round_trials[r]);
1563
    printf(")\n");
1564
    printf("\n");
1565 1566

    for (int r = 0; r < max_rounds; r++) {
1567 1568
      blerStats[r] = (double)n_errors[r] / round_trials[r];
      berStats[r] = (double)errors_scrambling[r] / available_bits/round_trials[r];
1569
    }
1570 1571
    effTP = effRate/(double)TBS * (double)100;
    printf("SNR %f: Channel BLER (%e", SNR, blerStats[0]);
1572
    for (int r = 1; r < max_rounds; r++)
1573 1574
      printf(",%e", blerStats[r]);
    printf(" Channel BER (%e", berStats[0]);
1575
    for (int r = 1; r < max_rounds; r++)
1576 1577
      printf(",%e", berStats[r]);
    printf(") Avg round %.2f, Eff Rate %.4f bits/slot, Eff Throughput %.2f, TBS %u bits/slot\n", roundStats,effRate,effTP,TBS);
Raymond Knopp's avatar
Raymond Knopp committed
1578

1579 1580 1581 1582 1583 1584
    printf("DMRS-PUSCH delay estimation: min %i, max %i, average %f\n",
           min_pusch_delay >> 1, max_pusch_delay >> 1, (double)sum_pusch_delay / (2 * delay_pusch_est_count));

    printf("*****************************************\n");
    printf("\n");

rmagueta's avatar
rmagueta committed
1585
    FILE *fd=fopen("nr_ulsim.log","w");
1586 1587 1588 1589
    if (fd == NULL) {
      printf("Problem with filename %s\n", "nr_ulsim.log");
      exit(-1);
    }
rmagueta's avatar
rmagueta committed
1590
    dump_pusch_stats(fd,gNB);
1591
    fclose(fd);
Raymond Knopp's avatar
Raymond Knopp committed
1592

1593 1594
    if (print_perf==1) {
      printDistribution(&gNB->phy_proc_rx,table_rx,"Total PHY proc rx");
1595 1596
      printStatIndent(&gNB->rx_pusch_stats,"RX PUSCH time");
      printStatIndent2(&gNB->ulsch_channel_estimation_stats,"ULSCH channel estimation time");
1597
      printStatIndent2(&gNB->ulsch_ptrs_processing_stats,"ULSCH PTRS Processing time");
1598 1599
      printStatIndent2(&gNB->ulsch_rbs_extraction_stats,"ULSCH rbs extraction time");
      printStatIndent2(&gNB->ulsch_channel_compensation_stats,"ULSCH channel compensation time");
1600
      printStatIndent2(&gNB->ulsch_mrc_stats,"ULSCH mrc computation");
1601
      printStatIndent2(&gNB->ulsch_llr_stats,"ULSCH llr computation");
1602 1603
      printStatIndent(&gNB->ulsch_unscrambling_stats,"ULSCH unscrambling");
      printStatIndent(&gNB->ulsch_decoding_stats,"ULSCH total decoding time");
1604 1605 1606 1607 1608
      printStatIndent(&UE->ulsch_encoding_stats,"ULSCH total encoding time");
      printStatIndent2(&UE->ulsch_segmentation_stats,"ULSCH segmentation time");
      printStatIndent2(&UE->ulsch_ldpc_encoding_stats,"ULSCH LDPC encoder time");
      printStatIndent2(&UE->ulsch_rate_matching_stats,"ULSCH rate-matching time");
      printStatIndent2(&UE->ulsch_interleaving_stats,"ULSCH interleaving time");
Sakthivel Velumani's avatar
Sakthivel Velumani committed
1609 1610 1611
      //printStatIndent2(&gNB->ulsch_deinterleaving_stats,"ULSCH deinterleaving");
      //printStatIndent2(&gNB->ulsch_rate_unmatching_stats,"ULSCH rate matching rx");
      //printStatIndent2(&gNB->ulsch_ldpc_decoding_stats,"ULSCH ldpc decoding");
1612 1613 1614 1615 1616 1617 1618 1619
      printStatIndent(&gNB->rx_srs_stats,"RX SRS time");
      printStatIndent2(&gNB->generate_srs_stats,"Generate SRS sequence time");
      printStatIndent2(&gNB->get_srs_signal_stats,"Get SRS signal time");
      printStatIndent2(&gNB->srs_channel_estimation_stats,"SRS channel estimation time");
      printStatIndent2(&gNB->srs_timing_advance_stats,"SRS timing advance estimation time");
      printStatIndent2(&gNB->srs_report_tlv_stats,"SRS report TLV build time");
      printStatIndent3(&gNB->srs_beam_report_stats,"SRS beam report build time");
      printStatIndent3(&gNB->srs_iq_matrix_stats,"SRS IQ matrix build time");
1620
      printf("\n");
1621
    }
1622

1623 1624
    if(n_trials==1)
      break;
1625

1626
    if ((float)effTP >= eff_tp_check) {
1627 1628 1629
      printf("*************\n");
      printf("PUSCH test OK\n");
      printf("*************\n");
1630
      ret = 0;
1631 1632
      break;
    }
1633
  } // SNR loop
1634

1635
  printf("\n");
1636 1637 1638 1639 1640 1641 1642 1643 1644 1645 1646 1647 1648 1649 1650 1651
  printf( "Num RB:\t%d\n"
          "Num symbols:\t%d\n"
          "MCS:\t%d\n"
          "DMRS config type:\t%d\n"
          "DMRS add pos:\t%d\n"
          "PUSCH mapping type:\t%d\n"
          "DMRS length:\t%d\n"
          "DMRS CDM gr w/o data:\t%d\n",
          nb_rb,
          nb_symb_sch,
          Imcs,
          dmrs_config_type,
          add_pos,
          mapping_type,
          length_dmrs,
          num_dmrs_cdm_grps_no_data);
Robert Schmidt's avatar
Robert Schmidt committed
1652 1653

  free_MIB_NR(mib);
1654 1655
  if (gNB->ldpc_offload_flag)
    free_nrLDPClib_offload();
Ahmed Hussein's avatar
Ahmed Hussein committed
1656

1657 1658 1659 1660 1661 1662
  if (output_fd)
    fclose(output_fd);

  if (input_fd)
    fclose(input_fd);

1663 1664 1665
  if (scg_fd)
    fclose(scg_fd);

1666
  return ret;
1667
}