phy_procedures_lte_eNb.c 72.7 KB
Newer Older
1 2 3 4 5
/*
 * 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
6
 * the OAI Public License, Version 1.1  (the "License"); you may not use this file
7 8 9 10 11 12 13 14 15 16 17 18 19 20
 * 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
 */
21 22 23

/*! \file phy_procedures_lte_eNB.c
 * \brief Implementation of eNB procedures from 36.213 LTE specifications
24
 * \author R. Knopp, F. Kaltenberger, N. Nikaein, X. Foukas
25 26 27
 * \date 2011
 * \version 0.1
 * \company Eurecom
28
 * \email: knopp@eurecom.fr,florian.kaltenberger@eurecom.fr,navid.nikaein@eurecom.fr, x.foukas@sms.ed.ac.uk
29 30 31 32
 * \note
 * \warning
 */

33 34 35 36
#include "PHY/defs_eNB.h"
#include "PHY/phy_extern.h"
#include "SCHED/sched_eNB.h"
#include "SCHED/sched_common_extern.h"
37
#include "PHY/LTE_ESTIMATION/lte_estimation.h"
38
#include "nfapi_interface.h"
39
#include "fapi_l1.h"
40 41
#include "common/utils/LOG/log.h"
#include "common/utils/LOG/vcd_signal_dumper.h"
42

43
#include "assertions.h"
Lionel Gauthier's avatar
Lionel Gauthier committed
44
#include "msc.h"
45

46 47
#include <time.h>

48
#if defined(ENABLE_ITTI)
Raymond Knopp's avatar
Raymond Knopp committed
49
#include "intertask_interface.h"
50 51
#endif

52
extern uint8_t nfapi_mode;
53

Raymond Knopp's avatar
 
Raymond Knopp committed
54

55

Wang Tsu-Han's avatar
Wang Tsu-Han committed
56
int16_t get_hundred_times_delta_IF_eNB(PHY_VARS_eNB *eNB,uint16_t UE_id,uint8_t harq_pid, uint8_t bw_factor)
Raymond Knopp's avatar
Raymond Knopp committed
57
{
58

59 60 61 62 63 64 65
  uint32_t Nre,sumKr,MPR_x100,Kr,r;
  uint16_t beta_offset_pusch;

  DevAssert( UE_id < NUMBER_OF_UE_MAX+1 );
  DevAssert( harq_pid < 8 );

  Nre = eNB->ulsch[UE_id]->harq_processes[harq_pid]->Nsymb_initial *
66
    eNB->ulsch[UE_id]->harq_processes[harq_pid]->nb_rb*12;
67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89

  sumKr = 0;

  for (r=0; r<eNB->ulsch[UE_id]->harq_processes[harq_pid]->C; r++) {
    if (r<eNB->ulsch[UE_id]->harq_processes[harq_pid]->Cminus)
      Kr = eNB->ulsch[UE_id]->harq_processes[harq_pid]->Kminus;
    else
      Kr = eNB->ulsch[UE_id]->harq_processes[harq_pid]->Kplus;

    sumKr += Kr;
  }

  if (Nre==0)
    return(0);

  MPR_x100 = 100*sumKr/Nre;
  // Note: MPR=is the effective spectral efficiency of the PUSCH
  // FK 20140908 sumKr is only set after the ulsch_encoding

  beta_offset_pusch = 8;
  //(eNB->ulsch[UE_id]->harq_processes[harq_pid]->control_only == 1) ? eNB->ulsch[UE_id]->beta_offset_cqi_times8:8;

  DevAssert( UE_id < NUMBER_OF_UE_MAX );
90
  //#warning "This condition happens sometimes. Need more investigation" // navid
91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107
  //DevAssert( MPR_x100/6 < 100 );

  if (1==1) { //eNB->ul_power_control_dedicated[UE_id].deltaMCS_Enabled == 1) {
    // This is the formula from Section 5.1.1.1 in 36.213 10*log10(deltaIF_PUSCH = (2^(MPR*Ks)-1)*beta_offset_pusch)
    if (bw_factor == 1) {
      uint8_t nb_rb = eNB->ulsch[UE_id]->harq_processes[harq_pid]->nb_rb;
      return(hundred_times_delta_TF[MPR_x100/6]+10*dB_fixed_times10((beta_offset_pusch)>>3)) + hundred_times_log10_NPRB[nb_rb-1];
    } else
      return(hundred_times_delta_TF[MPR_x100/6]+10*dB_fixed_times10((beta_offset_pusch)>>3));
  } else {
    return(0);
  }
}


int16_t get_hundred_times_delta_IF_mac(module_id_t module_idP, uint8_t CC_id, rnti_t rnti, uint8_t harq_pid)
{
108

109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125
  int8_t UE_id;

  if ((RC.eNB == NULL) || (module_idP > RC.nb_inst) || (CC_id > RC.nb_CC[module_idP])) {
    LOG_E(PHY,"get_UE_stats: No eNB found (or not allocated) for Mod_id %d,CC_id %d\n",module_idP,CC_id);
    return -1;
  }

  UE_id = find_ulsch( rnti, RC.eNB[module_idP][CC_id],SEARCH_EXIST);

  if (UE_id == -1) {
    // not found
    return 0;
  }

  return get_hundred_times_delta_IF_eNB( RC.eNB[module_idP][CC_id], UE_id, harq_pid, 0 );
}

126
int oai_nfapi_rach_ind(nfapi_rach_indication_t *rach_ind);
127

Raymond Knopp's avatar
 
Raymond Knopp committed
128

129 130
lte_subframe_t get_subframe_direction(uint8_t Mod_id,uint8_t CC_id,uint8_t subframe)
{
131

132
  return(subframe_select(&RC.eNB[Mod_id][CC_id]->frame_parms,subframe));
133

134
}
135

136
void pmch_procedures(PHY_VARS_eNB *eNB,eNB_rxtx_proc_t *proc) {
137 138


139
#if (RRC_VERSION >= MAKE_VERSION(10, 0, 0))
Raymond Knopp's avatar
Raymond Knopp committed
140
  MCH_PDU *mch_pduP=NULL;
141
  //  uint8_t sync_area=255;
142
#endif
143

Raymond Knopp's avatar
Raymond Knopp committed
144
  int             subframe = proc->subframe_tx;
145

Raymond Knopp's avatar
Raymond Knopp committed
146
  AssertFatal (1 == 0, "pmch not tested for the moment, exiting\n");
Raymond Knopp's avatar
Raymond Knopp committed
147

148
  // This is DL-Cell spec pilots in Control region
Raymond Knopp's avatar
Raymond Knopp committed
149 150
  generate_pilots_slot (eNB, eNB->common_vars.txdataF, AMP, subframe << 1, 1);

151

152
#if (RRC_VERSION >= MAKE_VERSION(10, 0, 0))
153 154
  // if mcch is active, send regardless of the node type: eNB or RN
  // when mcch is active, MAC sched does not allow MCCH and MTCH multiplexing
155
  /*
156 157 158 159 160
    mch_pduP = mac_xface->get_mch_sdu(eNB->Mod_id,
    eNB->CC_id,
    proc->frame_tx,
    subframe);
  */
161 162 163 164 165 166 167 168
  if ((mch_pduP->Pdu_size > 0) && (mch_pduP->sync_area == 0)) // TEST: only transmit mcch for sync area 0
    LOG_D(PHY,"[eNB%"PRIu8"] Frame %d subframe %d : Got MCH pdu for MBSFN (MCS %"PRIu8", TBS %d) \n",
	  eNB->Mod_id,proc->frame_tx,subframe,mch_pduP->mcs,
	  eNB->dlsch_MCH->harq_processes[0]->TBS>>3);
  else {
    LOG_D(PHY,"[DeNB %"PRIu8"] Frame %d subframe %d : Do not transmit MCH pdu for MBSFN sync area %"PRIu8" (%s)\n",
	  eNB->Mod_id,proc->frame_tx,subframe,mch_pduP->sync_area,
	  (mch_pduP->Pdu_size == 0)? "Empty MCH PDU":"Let RN transmit for the moment");
Raymond Knopp's avatar
Raymond Knopp committed
169
    mch_pduP = NULL;
170
  }
171 172
    
  if (mch_pduP) {
Raymond Knopp's avatar
Raymond Knopp committed
173
    fill_eNB_dlsch_MCH (eNB, mch_pduP->mcs, 1, 0);
174
    // Generate PMCH
Raymond Knopp's avatar
Raymond Knopp committed
175
    generate_mch (eNB, proc, (uint8_t *) mch_pduP->payload);
176
  } else {
Raymond Knopp's avatar
Raymond Knopp committed
177
    LOG_D (PHY, "[eNB/RN] Frame %d subframe %d: MCH not generated \n", proc->frame_tx, subframe);
Raymond Knopp's avatar
 
Raymond Knopp committed
178
  }
Raymond Knopp's avatar
Raymond Knopp committed
179

180
#endif
181
}
182

183
void common_signal_procedures (PHY_VARS_eNB *eNB,int frame, int subframe) {
184

185
  LTE_DL_FRAME_PARMS *fp=&eNB->frame_parms;
186
  int **txdataF = eNB->common_vars.txdataF;
187
  uint8_t *pbch_pdu=&eNB->pbch_pdu[0];
188

189
  //LOG_D(PHY,"common_signal_procedures: frame %d, subframe %d fdd:%s dir:%s\n",frame,subframe,fp->frame_type == FDD?"FDD":"TDD", subframe_select(fp,subframe) == SF_DL?"DL":"UL?"); 
190

191
  // generate Cell-Specific Reference Signals for both slots
192
  VCD_SIGNAL_DUMPER_DUMP_FUNCTION_BY_NAME(VCD_SIGNAL_DUMPER_FUNCTIONS_PHY_ENB_RS_TX,1);
Wang Tsu-Han's avatar
Wang Tsu-Han committed
193

194
  if(subframe_select(fp,subframe) == SF_S)
195 196 197
    generate_pilots_slot(eNB,
			 txdataF,
			 AMP,
198 199 200 201 202 203 204
			 subframe<<1,1);
  else
    generate_pilots_slot(eNB,
			 txdataF,
			 AMP,
			 subframe<<1,0);

205
  // check that 2nd slot is for DL
Raymond Knopp's avatar
Raymond Knopp committed
206 207 208 209 210
  if (subframe_select (fp, subframe) == SF_DL)
    generate_pilots_slot (eNB, txdataF, AMP, (subframe << 1) + 1, 0);

  VCD_SIGNAL_DUMPER_DUMP_FUNCTION_BY_NAME (VCD_SIGNAL_DUMPER_FUNCTIONS_PHY_ENB_RS_TX, 0);

211

212
  // First half of PSS/SSS (FDD, slot 0)
Raymond Knopp's avatar
 
Raymond Knopp committed
213
  if (subframe == 0) {
214
    if (fp->frame_type == FDD) {
Raymond Knopp's avatar
Raymond Knopp committed
215 216 217
      generate_pss (txdataF, AMP, fp, (fp->Ncp == NORMAL) ? 6 : 5, 0);
      generate_sss (txdataF, AMP, fp, (fp->Ncp == NORMAL) ? 5 : 4, 0);

218
    }
219 220


Raymond Knopp's avatar
Raymond Knopp committed
221

222
    /// First half of SSS (TDD, slot 1)
Raymond Knopp's avatar
Raymond Knopp committed
223

224
    if (fp->frame_type == TDD) {
Raymond Knopp's avatar
Raymond Knopp committed
225
      generate_sss (txdataF, AMP, fp, (fp->Ncp == NORMAL) ? 6 : 5, 1);
226
    }
227 228
    // generate PBCH (Physical Broadcast CHannel) info

229
    /// generate PBCH
230
    if ((frame&3)==0) {
231 232
      //AssertFatal(eNB->pbch_configured==1,"PBCH was not configured by MAC\n");
      if (eNB->pbch_configured!=1) return;
233
      eNB->pbch_configured=0;
234
    }
Raymond Knopp's avatar
Raymond Knopp committed
235 236 237 238
    generate_pbch (&eNB->pbch, txdataF, AMP, fp, pbch_pdu, frame & 3);

  } else if ((subframe == 1) && (fp->frame_type == TDD)) {
    generate_pss (txdataF, AMP, fp, 2, 2);
239
  }
240
  // Second half of PSS/SSS (FDD, slot 10)
Raymond Knopp's avatar
Raymond Knopp committed
241 242 243
  else if ((subframe == 5) && (fp->frame_type == FDD)) {
    generate_pss (txdataF, AMP, &eNB->frame_parms, (fp->Ncp == NORMAL) ? 6 : 5, 10);
    generate_sss (txdataF, AMP, &eNB->frame_parms, (fp->Ncp == NORMAL) ? 5 : 4, 10);
244

245 246
  }
  //  Second-half of SSS (TDD, slot 11)
Raymond Knopp's avatar
Raymond Knopp committed
247 248
  else if ((subframe == 5) && (fp->frame_type == TDD)) {
    generate_sss (txdataF, AMP, fp, (fp->Ncp == NORMAL) ? 6 : 5, 11);
Raymond Knopp's avatar
 
Raymond Knopp committed
249
  }
250
  // Second half of PSS (TDD, slot 12)
Raymond Knopp's avatar
Raymond Knopp committed
251 252
  else if ((subframe == 6) && (fp->frame_type == TDD)) {
    generate_pss (txdataF, AMP, fp, 2, 12);
253
  }
Raymond Knopp's avatar
 
Raymond Knopp committed
254

255
}
Raymond Knopp's avatar
 
Raymond Knopp committed
256

257

258

259 260 261 262 263 264
void pdsch_procedures(PHY_VARS_eNB *eNB,
		      eNB_rxtx_proc_t *proc,
		      int harq_pid,
		      LTE_eNB_DLSCH_t *dlsch, 
		      LTE_eNB_DLSCH_t *dlsch1,
		      LTE_eNB_UE_stats *ue_stats,
265
		      int ra_flag) {
266

267 268
  int frame=proc->frame_tx;
  int subframe=proc->subframe_tx;
269
  LTE_DL_eNB_HARQ_t *dlsch_harq=dlsch->harq_processes[harq_pid];
270
  LTE_DL_FRAME_PARMS *fp=&eNB->frame_parms;
271

272
  if (dlsch->rnti == 0x02) {//frame < 200) {
273

274
    LOG_D(PHY,
275 276
	  "[eNB %"PRIu8"][PDSCH %"PRIx16"/%"PRIu8"] Frame %d, subframe %d: Generating PDSCH/DLSCH with input size = %"PRIu16", pdsch_start %d, G %d, nb_rb %"PRIu16", rb0 %x, rb1 %x, TBS %"PRIu16", pmi_alloc %"PRIx64", rv %"PRIu8" (round %"PRIu8")\n",
	  eNB->Mod_id, dlsch->rnti,harq_pid,
277
	  frame, subframe, dlsch_harq->TBS/8, dlsch_harq->pdsch_start,
278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294
	  get_G(fp,
		dlsch_harq->nb_rb,
		dlsch_harq->rb_alloc,
		dlsch_harq->Qm,
		dlsch_harq->Nl,
		dlsch_harq->pdsch_start,
		frame,
		subframe,
		dlsch_harq->mimo_mode==TM7?7:0),
	  dlsch_harq->nb_rb,
	  dlsch_harq->rb_alloc[0],
	  dlsch_harq->rb_alloc[1],
	  dlsch_harq->TBS,
	  pmi2hex_2Ar1(dlsch_harq->pmi_alloc),
	  dlsch_harq->rvidx,
	  dlsch_harq->round);
  }    
295

296 297 298
  MSC_LOG_TX_MESSAGE(
		     MSC_PHY_ENB,MSC_PHY_UE,
		     NULL,0,
299
		     "%05u:%02u PDSCH/DLSCH input size = %"PRIu16", G %d, nb_rb %"PRIu16", TBS %"PRIu16", pmi_alloc %"PRIx16", rv %"PRIu8" (round %"PRIu8")",
300
		     frame, subframe,
301
		     dlsch_harq->TBS/8,
302 303 304
		     get_G(fp,
			   dlsch_harq->nb_rb,
			   dlsch_harq->rb_alloc,
305
			   dlsch_harq->Qm,
306
			   dlsch_harq->Nl,
307
			   dlsch_harq->pdsch_start,
308 309 310
			   frame,
			   subframe,
			   dlsch_harq->mimo_mode==TM7?7:0),
311
		     dlsch_harq->nb_rb,
312
		     dlsch_harq->TBS,
313 314 315
		     pmi2hex_2Ar1(dlsch_harq->pmi_alloc),
		     dlsch_harq->rvidx,
		     dlsch_harq->round);
Raymond Knopp's avatar
Raymond Knopp committed
316

317 318
  
  
319
  if (ue_stats) ue_stats->dlsch_sliding_cnt++;
320
  
321 322 323
  if (dlsch_harq->round == 0) {
    if (ue_stats)
      ue_stats->dlsch_trials[harq_pid][0]++;
324 325 326 327
  } else {
    ue_stats->dlsch_trials[harq_pid][dlsch_harq->round]++;
#ifdef DEBUG_PHY_PROC
#ifdef DEBUG_DLSCH
Raymond Knopp's avatar
Raymond Knopp committed
328
    LOG_D (PHY, "[eNB] This DLSCH is a retransmission\n");
329 330 331
#endif
#endif
  }
332 333


334
  LOG_D(PHY,"Generating DLSCH/PDSCH pdu:%p pdsch_start:%d frame:%d subframe:%d nb_rb:%d rb_alloc:%d Qm:%d Nl:%d round:%d\n",
335
	dlsch_harq->pdu,dlsch_harq->pdsch_start,frame,subframe,dlsch_harq->nb_rb,dlsch_harq->rb_alloc[0],dlsch_harq->Qm,dlsch_harq->Nl,dlsch_harq->round);
336
  // 36-212 
337
  if (nfapi_mode == 0 || nfapi_mode == 1) { // monolthic OR PNF - do not need turbo encoding on VNF
Raymond Knopp's avatar
Raymond Knopp committed
338

339
    if (dlsch_harq->pdu==NULL){
340
      LOG_E(PHY,"dlsch_harq->pdu == NULL SFN/SF:%04d%d dlsch[rnti:%x] dlsch_harq[pdu:%p pdsch_start:%d Qm:%d Nl:%d round:%d nb_rb:%d rb_alloc[0]:%d]\n", frame,subframe,dlsch->rnti, dlsch_harq->pdu,dlsch_harq->pdsch_start,dlsch_harq->Qm,dlsch_harq->Nl,dlsch_harq->round,dlsch_harq->nb_rb,dlsch_harq->rb_alloc[0]);
341 342
      return;
    }
Raymond Knopp's avatar
Raymond Knopp committed
343

344 345 346
    start_meas(&eNB->dlsch_encoding_stats);

    eNB->te(eNB,
347 348 349 350 351 352 353 354 355 356 357 358
	    dlsch_harq->pdu,
	    dlsch_harq->pdsch_start,
	    dlsch,
	    frame,
	    subframe,
	    &eNB->dlsch_rate_matching_stats,
	    &eNB->dlsch_turbo_encoding_stats,
	    &eNB->dlsch_turbo_encoding_waiting_stats,
	    &eNB->dlsch_turbo_encoding_main_stats,
	    &eNB->dlsch_turbo_encoding_wakeup_stats0,
	    &eNB->dlsch_turbo_encoding_wakeup_stats1,
	    &eNB->dlsch_interleaving_stats);
359
    stop_meas(&eNB->dlsch_encoding_stats);
360 361 362 363 364
    if(eNB->dlsch_encoding_stats.p_time>500*3000 && opp_enabled == 1)
      {
	print_meas_now(&eNB->dlsch_encoding_stats,"total coding",stderr);
      }
    // 36-211
365 366
    start_meas(&eNB->dlsch_scrambling_stats);
    dlsch_scrambling(fp,
367 368 369 370 371 372 373 374 375 376 377 378 379 380
		     0,
		     dlsch,
		     harq_pid,
		     get_G(fp,
			   dlsch_harq->nb_rb,
			   dlsch_harq->rb_alloc,
			   dlsch_harq->Qm,
			   dlsch_harq->Nl,
			   dlsch_harq->pdsch_start,
			   frame,subframe,
			   0),
		     0,
		     frame,
		     subframe<<1);
381 382 383
    stop_meas(&eNB->dlsch_scrambling_stats);

    start_meas(&eNB->dlsch_modulation_stats);
384

385
  
386
    dlsch_modulation(eNB,
387 388 389 390 391 392 393 394 395
		     eNB->common_vars.txdataF,
		     AMP,
		     frame,
		     subframe,
		     dlsch_harq->pdsch_start,
		     dlsch,
		     dlsch1);
  
    stop_meas(&eNB->dlsch_modulation_stats);
396
  }
Wang Tsu-Han's avatar
Wang Tsu-Han committed
397 398 399
#ifdef PHY_TX_THREAD
  dlsch->active[subframe] = 0;
#else
400
  dlsch->active = 0;
Wang Tsu-Han's avatar
Wang Tsu-Han committed
401
#endif
402
  dlsch_harq->round++;
sharma's avatar
sharma committed
403

404
  LOG_D(PHY,"Generating DLSCH/PDSCH dlsch_harq[round:%d]\n",dlsch_harq->round);
405
}
406 407 408



409
void phy_procedures_eNB_TX(PHY_VARS_eNB *eNB,
410
			   eNB_rxtx_proc_t *proc,
411
			   int do_meas)
412
{
413 414
  int frame=proc->frame_tx;
  int subframe=proc->subframe_tx;
415
  uint32_t i,aa;
416
  uint8_t harq_pid;
Wang Tsu-Han's avatar
Wang Tsu-Han committed
417
  int16_t UE_id=0;
418
  uint8_t num_pdcch_symbols=0;
419
  uint8_t num_dci=0;
420 421 422
#ifdef Rel14
  uint8_t         num_mdci = 0;
#endif
423 424
  uint8_t ul_subframe;
  uint32_t ul_frame;
425
  LTE_DL_FRAME_PARMS *fp=&eNB->frame_parms;
426
  LTE_UL_eNB_HARQ_t *ulsch_harq;
427

428

429

Raymond Knopp's avatar
Raymond Knopp committed
430 431
  if ((fp->frame_type == TDD) && (subframe_select (fp, subframe) == SF_UL))
    return;
432

433
  VCD_SIGNAL_DUMPER_DUMP_FUNCTION_BY_NAME(VCD_SIGNAL_DUMPER_FUNCTIONS_PHY_PROCEDURES_ENB_TX+(eNB->CC_id),1);
434
  if (do_meas==1) start_meas(&eNB->phy_proc_tx);
435
  
436
  // clear the transmit data array for the current subframe
Raymond Knopp's avatar
Raymond Knopp committed
437 438
  for (aa = 0; aa < fp->nb_antenna_ports_eNB; aa++) {
    memset (&eNB->common_vars.txdataF[aa][subframe * fp->ofdm_symbol_size * (fp->symbols_per_tti)], 0, fp->ofdm_symbol_size * (fp->symbols_per_tti) * sizeof (int32_t));
Raymond Knopp's avatar
 
Raymond Knopp committed
439
  }
440
  
441
  
442 443
  if (nfapi_mode == 0 || nfapi_mode == 1) {
    if (is_pmch_subframe(frame,subframe,fp)) {
444
      pmch_procedures(eNB,proc);
445 446 447 448 449
    }
    else {
      // this is not a pmch subframe, so generate PSS/SSS/PBCH
      common_signal_procedures(eNB,proc->frame_tx, proc->subframe_tx);
    }
450
  }
451 452
  
  
Raymond Knopp's avatar
 
Raymond Knopp committed
453
  // clear existing ulsch dci allocations before applying info from MAC  (this is table
Raymond Knopp's avatar
Raymond Knopp committed
454 455
  ul_subframe = pdcch_alloc2ul_subframe (fp, subframe);
  ul_frame = pdcch_alloc2ul_frame (fp, frame, subframe);
456 457 458
  
  
  
Raymond Knopp's avatar
 
Raymond Knopp committed
459
  // clear previous allocation information for all UEs
Raymond Knopp's avatar
Raymond Knopp committed
460
  for (i = 0; i < NUMBER_OF_UE_MAX; i++) {
461 462
    if (eNB->dlsch[i][0])
      eNB->dlsch[i][0]->subframe_tx[subframe] = 0;
Raymond Knopp's avatar
 
Raymond Knopp committed
463
  }
464 465
  
  
466 467 468 469
  /* TODO: check the following test - in the meantime it is put back as it was before */
  //if ((ul_subframe < 10)&&
  //    (subframe_select(fp,ul_subframe)==SF_UL)) { // This means that there is a potential UL subframe that will be scheduled here
  if (ul_subframe < 10) { // This means that there is a potential UL subframe that will be scheduled here
470
    for (i=0; i<NUMBER_OF_UE_MAX; i++) {
471 472 473 474
#ifdef Rel14
      if (eNB->ulsch[i]->ue_type >0) harq_pid = 0;
      else 
#endif
475 476
	harq_pid = subframe2harq_pid(fp,ul_frame,ul_subframe);
      
477 478 479 480 481 482 483 484 485 486 487 488 489 490 491 492 493 494 495 496 497 498
      if (eNB->ulsch[i]) {
	ulsch_harq = eNB->ulsch[i]->harq_processes[harq_pid];
	
	/* Store first_rb and n_DMRS for correct PHICH generation below.
	 * For PHICH generation we need "old" values of last scheduling
	 * for this HARQ process. 'generate_eNB_dlsch_params' below will
	 * overwrite first_rb and n_DMRS and 'generate_phich_top', done
	 * after 'generate_eNB_dlsch_params', would use the "new" values
	 * instead of the "old" ones.
	 *
	 * This has been tested for FDD only, may be wrong for TDD.
	 *
	 * TODO: maybe we should restructure the code to be sure it
	 *       is done correctly. The main concern is if the code
	 *       changes and first_rb and n_DMRS are modified before
	 *       we reach here, then the PHICH processing will be wrong,
	 *       using wrong first_rb and n_DMRS values to compute
	 *       ngroup_PHICH and nseq_PHICH.
	 *
	 * TODO: check if that works with TDD.
	 */
	ulsch_harq->previous_first_rb = ulsch_harq->first_rb;
499
	ulsch_harq->previous_n_DMRS = ulsch_harq->n_DMRS;
500
	
501 502 503
      }
    }
  }
504 505
  
  
506 507
  num_pdcch_symbols = eNB->pdcch_vars[subframe&1].num_pdcch_symbols;
  num_dci           = eNB->pdcch_vars[subframe&1].num_dci;
Cedric Roux's avatar
Cedric Roux committed
508
  LOG_D(PHY,"num_pdcch_symbols %"PRIu8",number dci %"PRIu8"\n",num_pdcch_symbols, num_dci);
509
  VCD_SIGNAL_DUMPER_DUMP_VARIABLE_BY_NAME(VCD_SIGNAL_DUMPER_VARIABLES_DCI_INFO,num_pdcch_symbols);
510
  
Raymond Knopp's avatar
Raymond Knopp committed
511
  VCD_SIGNAL_DUMPER_DUMP_VARIABLE_BY_NAME (VCD_SIGNAL_DUMPER_VARIABLES_DCI_INFO, (frame * 10) + subframe);
512
  
513
  if (num_dci > 0)
Cedric Roux's avatar
Cedric Roux committed
514
    LOG_D(PHY,"[eNB %"PRIu8"] Frame %d, subframe %d: Calling generate_dci_top (pdcch) (num_dci %"PRIu8") num_pdcch_symbols:%d\n",eNB->Mod_id,frame, subframe, num_dci, num_pdcch_symbols);
515
  
516
  
517
  VCD_SIGNAL_DUMPER_DUMP_FUNCTION_BY_NAME(VCD_SIGNAL_DUMPER_FUNCTIONS_PHY_ENB_PDCCH_TX,1);
518
  
519 520
  if (nfapi_mode == 0 || nfapi_mode == 1) {
    generate_dci_top(num_pdcch_symbols,
521 522 523 524 525 526 527
		     num_dci,
		     &eNB->pdcch_vars[subframe&1].dci_alloc[0],
		     0,
		     AMP,
		     fp,
		     eNB->common_vars.txdataF,
		     subframe);
528
    
529
#ifdef Rel14
530 531 532 533 534 535
    num_mdci = eNB->mpdcch_vars[subframe &1].num_dci;
    if (num_mdci > 0) {
      LOG_I (PHY, "[eNB %" PRIu8 "] Frame %d, subframe %d: Calling generate_mdci_top (mpdcch) (num_dci %" PRIu8 ")\n", eNB->Mod_id, frame, subframe, num_mdci);
      
      generate_mdci_top (eNB, frame, subframe, AMP, eNB->common_vars.txdataF);
      
536
    }
537
#endif
538
  }
539 540
  
  
541
  VCD_SIGNAL_DUMPER_DUMP_FUNCTION_BY_NAME(VCD_SIGNAL_DUMPER_FUNCTIONS_GENERATE_DLSCH,1);
Raymond Knopp's avatar
 
Raymond Knopp committed
542
  // Now scan UE specific DLSCH
543
  LTE_eNB_DLSCH_t *dlsch0,*dlsch1;
544 545 546 547 548
  for (UE_id=0; UE_id<NUMBER_OF_UE_MAX; UE_id++) {
    dlsch0 = eNB->dlsch[(uint8_t)UE_id][0]; 
    dlsch1 = eNB->dlsch[(uint8_t)UE_id][1]; 
    
    if ((dlsch0)&&(dlsch0->rnti>0)&&
Wang Tsu-Han's avatar
Wang Tsu-Han committed
549
#ifdef PHY_TX_THREAD
550
	(dlsch0->active[subframe] == 1) 
Wang Tsu-Han's avatar
Wang Tsu-Han committed
551
#else
552
	(dlsch0->active == 1) 
553
#endif
554 555 556 557 558 559 560 561 562 563 564 565 566 567 568 569 570 571 572 573 574
	){
      
      // get harq_pid
      harq_pid = dlsch0->harq_ids[frame%2][subframe];
      AssertFatal(harq_pid>=0,"harq_pid is negative\n");
      
      if (harq_pid>=8)
	{
	  LOG_E(PHY,"harq_pid:%d corrupt must be 0-7 UE_id:%d frame:%d subframe:%d rnti:%x\n", harq_pid,UE_id,frame,subframe,dlsch0->rnti);
	}
      else
	{
	  // generate pdsch
	  
	  pdsch_procedures(eNB,
			   proc,
			   harq_pid,
			   dlsch0,
			   dlsch1,
			   &eNB->UE_stats[(uint32_t)UE_id],
			   0);
575
	}
576 577
      
      
578
    }
579 580 581
    
    
    else if ((dlsch0)&&(dlsch0->rnti>0)&&
Wang Tsu-Han's avatar
Wang Tsu-Han committed
582
#ifdef PHY_TX_THREAD
583
	     (dlsch0->active[subframe] == 0) 
Wang Tsu-Han's avatar
Wang Tsu-Han committed
584
#else
585
	     (dlsch0->active == 0) 
586
#endif
587 588 589
	     ){
      // clear subframe TX flag since UE is not scheduled for PDSCH in this subframe (so that we don't look for PUCCH later)
      dlsch0->subframe_tx[subframe]=0;
Raymond Knopp's avatar
 
Raymond Knopp committed
590
    }
591 592 593 594 595
    
    VCD_SIGNAL_DUMPER_DUMP_FUNCTION_BY_NAME(VCD_SIGNAL_DUMPER_FUNCTIONS_GENERATE_DLSCH,0);
    
  }
  
596
  VCD_SIGNAL_DUMPER_DUMP_FUNCTION_BY_NAME(VCD_SIGNAL_DUMPER_FUNCTIONS_GENERATE_PHICH,1);
597 598 599
  generate_phich_top(eNB,
		     proc,
		     AMP);
600
  VCD_SIGNAL_DUMPER_DUMP_FUNCTION_BY_NAME(VCD_SIGNAL_DUMPER_FUNCTIONS_GENERATE_PHICH,0);
601
  
602
  VCD_SIGNAL_DUMPER_DUMP_FUNCTION_BY_NAME(VCD_SIGNAL_DUMPER_FUNCTIONS_PHY_PROCEDURES_ENB_TX+(eNB->CC_id),0);
603
  if (do_meas==1) stop_meas(&eNB->phy_proc_tx);
604
  
605 606
}

607 608

void srs_procedures(PHY_VARS_eNB *eNB,eNB_rxtx_proc_t *proc) {
609 610
  
  
611
  LTE_DL_FRAME_PARMS *fp = &eNB->frame_parms;
Raymond Knopp's avatar
Raymond Knopp committed
612 613
  const int       subframe = proc->subframe_rx;
  const int       frame = proc->frame_rx;
614
  
Raymond Knopp's avatar
Raymond Knopp committed
615
  int             i;
616
  
Raymond Knopp's avatar
Raymond Knopp committed
617
  if (is_srs_occasion_common (fp, frame, subframe)) {
618
    
Raymond Knopp's avatar
Raymond Knopp committed
619 620 621 622
    // Do SRS processing 
    // check if there is SRS and we have to use shortened format
    // TODO: check for exceptions in transmission of SRS together with ACK/NACK
    for (i = 0; i < NUMBER_OF_UE_MAX; i++) {
623
      
Raymond Knopp's avatar
Raymond Knopp committed
624
      if (eNB->soundingrs_ul_config_dedicated[i].active == 1) {
625 626 627 628
	
	
	if (lte_srs_channel_estimation (fp, &eNB->common_vars, &eNB->srs_vars[i], &eNB->soundingrs_ul_config_dedicated[i], subframe, 0 /*eNB_id */ )) {
	  LOG_E (PHY, "problem processing SRS\n");
629
	}
630
	eNB->soundingrs_ul_config_dedicated[i].active = 0;
631 632 633 634 635
      }
    }
  }
}

636 637
void fill_sr_indication(PHY_VARS_eNB *eNB,uint16_t rnti,int frame,int subframe,uint32_t stat) {
  
638
  pthread_mutex_lock(&eNB->UL_INFO_mutex);
639 640 641
  nfapi_sr_indication_t       *sr_ind =         &eNB->UL_INFO.sr_ind;
  nfapi_sr_indication_body_t  *sr_ind_body =    &sr_ind->sr_indication_body;
  nfapi_sr_indication_pdu_t *pdu =   &sr_ind_body->sr_pdu_list[sr_ind_body->number_of_srs];
642
  
643 644
  sr_ind->sfn_sf = frame<<4|subframe;
  sr_ind->header.message_id = NFAPI_RX_SR_INDICATION;
645
  
646
  sr_ind_body->tl.tag = NFAPI_SR_INDICATION_BODY_TAG;
647
  
648 649
  pdu->instance_length                                = 0; // don't know what to do with this
  //  pdu->rx_ue_information.handle                       = handle;
650
  pdu->rx_ue_information.tl.tag                       = NFAPI_RX_UE_INFORMATION_TAG;
651
  pdu->rx_ue_information.rnti                         = rnti;
652
  
Wang Tsu-Han's avatar
Wang Tsu-Han committed
653
  int SNRtimes10 = dB_fixed_times10(stat) - 300;//(10*eNB->measurements.n0_power_dB[0]);
654

655

Raymond Knopp's avatar
Raymond Knopp committed
656
  int             SNRtimes10 = dB_fixed_times10 (stat) - 10 * max (eNB->measurements.n0_subband_power_tot_dB[0],
657
								   eNB->measurements.n0_subband_power_tot_dB[eNB->frame_parms.N_RB_UL - 1]);
658

659 660
  pdu->ul_cqi_information.tl.tag = NFAPI_UL_CQI_INFORMATION_TAG;
  
661 662 663 664
  if      (SNRtimes10 < -640) pdu->ul_cqi_information.ul_cqi=0;
  else if (SNRtimes10 >  635) pdu->ul_cqi_information.ul_cqi=255;
  else                        pdu->ul_cqi_information.ul_cqi=(640+SNRtimes10)/5;
  pdu->ul_cqi_information.channel = 0;
665
  
666
  sr_ind_body->number_of_srs++;
667 668 669
  pthread_mutex_unlock(&eNB->UL_INFO_mutex);
}

670
void uci_procedures (PHY_VARS_eNB * eNB, eNB_rxtx_proc_t * proc) {
Cedric Roux's avatar
Cedric Roux committed
671

672
  LTE_DL_FRAME_PARMS *fp=&eNB->frame_parms;
673
  uint8_t SR_payload = 0,pucch_b0b1[4][2]= {{0,0},{0,0},{0,0},{0,0}},harq_ack[4]={0,0,0,0};
674
  int32_t metric[4]={0,0,0,0},metric_SR=0,max_metric=0;
675 676
  const int subframe = proc->subframe_rx;
  const int frame = proc->frame_rx;
677 678 679
  int i;
  LTE_eNB_UCI *uci;
  uint16_t tdd_multiplexing_mask=0;
680
  
681
  for (i=0;i<NUMBER_OF_UE_MAX;i++) {
682 683
    
    
684
    uci = &eNB->uci_vars[i];
Raymond Knopp's avatar
Raymond Knopp committed
685
    if ((uci->active == 1) && (uci->frame == frame) && (uci->subframe == subframe)) {
686
      
Raymond Knopp's avatar
Raymond Knopp committed
687 688
      LOG_D (PHY, "Frame %d, subframe %d: Running uci procedures (type %d) for %d \n", frame, subframe, uci->type, i);
      uci->active = 0;
689
      
690
      // Null out PUCCH PRBs for noise measurement
Raymond Knopp's avatar
Raymond Knopp committed
691
      switch (fp->N_RB_UL) {
692
      case 6:
693 694
	eNB->rb_mask_ul[0] |= (0x1 | (1 << 5)); //position 5
	break;
695
      case 15:
696 697
	eNB->rb_mask_ul[0] |= (0x1 | (1 << 14));        // position 14
	break;
698
      case 25:
699 700
	eNB->rb_mask_ul[0] |= (0x1 | (1 << 24));        // position 24
	break;
701
      case 50:
702 703 704
	eNB->rb_mask_ul[0] |= 0x1;
	eNB->rb_mask_ul[1] |= (1 << 17);        // position 49 (49-32)
	break;
705
      case 75:
706 707 708
	eNB->rb_mask_ul[0] |= 0x1;
	eNB->rb_mask_ul[2] |= (1 << 10);        // position 74 (74-64)
	break;
709
      case 100:
710 711 712
	eNB->rb_mask_ul[0] |= 0x1;
	eNB->rb_mask_ul[3] |= (1 << 3); // position 99 (99-96)
	break;
713
      default:
714 715
	LOG_E (PHY, "Unknown number for N_RB_UL %d\n", fp->N_RB_UL);
	break;
716
      }
Wang Tsu-Han's avatar
Wang Tsu-Han committed
717
      SR_payload = 0;
718 719 720
      switch (uci->type) {
      case SR:
      case HARQ_SR:
sharma's avatar
sharma committed
721
	
722
	metric_SR = rx_pucch(eNB,
Wang Tsu-Han's avatar
Wang Tsu-Han committed
723 724 725 726 727 728 729 730 731 732
			     uci->pucch_fmt,
			     i,
			     uci->n_pucch_1_0_sr[0],
			     0, // n2_pucch
			     uci->srs_active, // shortened format
			     &SR_payload,
			     frame,
			     subframe,
			     PUCCH1_THRES);
	LOG_D(PHY,"[eNB %d][SR %x] Frame %d subframe %d Checking SR is %d (uci.type %d SR n1pucch is %d)\n",
733
	      eNB->Mod_id,
734
	      uci->rnti,
735 736 737
	      frame,
	      subframe,
	      SR_payload,
738
	      uci->type,
739 740 741
	      uci->n_pucch_1_0_sr[0]);
	if (uci->type == SR) {
	  if (SR_payload == 1) {
742
	    fill_sr_indication(eNB,uci->rnti,frame,subframe,metric_SR);
Wang Tsu-Han's avatar
Wang Tsu-Han committed
743
	    break;
744 745
	  }
	  else {
Wang Tsu-Han's avatar
Wang Tsu-Han committed
746
	    break;
747 748 749 750
	  }
	}
      case HARQ:
	if (fp->frame_type == FDD) {
751
	  LOG_D(PHY,"Frame %d Subframe %d Demodulating PUCCH (UCI %d) for ACK/NAK (uci->pucch_fmt %d,uci->type %d.uci->frame %d, uci->subframe %d): n1_pucch0 %d SR_payload %d\n",
752 753 754 755 756 757 758 759 760 761 762 763 764 765 766 767 768 769 770
		frame,subframe,i,
		uci->pucch_fmt,uci->type,
		uci->frame,uci->subframe,uci->n_pucch_1[0][0],
		SR_payload);
	  
	  metric[0] = rx_pucch(eNB,
			       uci->pucch_fmt,
			       i,
			       uci->n_pucch_1[0][0],
			       0, //n2_pucch
			       uci->srs_active, // shortened format
			       pucch_b0b1[0],
			       frame,
			       subframe,
			       PUCCH1a_THRES);
	  
	  
	  /* cancel SR detection if reception on n1_pucch0 is better than on SR PUCCH resource index, otherwise send it up to MAC */
	  if (uci->type==HARQ_SR && metric[0] > metric_SR) SR_payload = 0;
771
	  else if (SR_payload == 1) fill_sr_indication(eNB,uci->rnti,frame,subframe,metric_SR);
772
	  
773 774 775 776 777 778 779 780 781 782 783 784 785 786 787 788
	  if (uci->type==HARQ_SR && metric[0] <= metric_SR) {
	    /* when transmitting ACK/NACK on SR PUCCH resource index, SR payload is always 1 */
	    SR_payload = 1;
	    
	    metric[0]=rx_pucch(eNB,
			       uci->pucch_fmt,
			       i,
			       uci->n_pucch_1_0_sr[0],
			       0, //n2_pucch
			       uci->srs_active, // shortened format
			       pucch_b0b1[0],
			       frame,
			       subframe,
			       PUCCH1a_THRES);
	  }
	  
789
	  
790
	  LOG_D(PHY,"[eNB %d][PDSCH %x] Frame %d subframe %d pucch1a (FDD) payload %d (metric %d)\n",
791 792 793
		eNB->Mod_id,
		uci->rnti,
		frame,subframe,
794
		pucch_b0b1[0][0],metric[0]);
795
	  
Wang Tsu-Han's avatar
Wang Tsu-Han committed
796
	  uci->stat = metric[0]; 	  
797
	  fill_uci_harq_indication(eNB,uci,frame,subframe,pucch_b0b1[0],0,0xffff);
798
	  
799 800
	}
	else { // frame_type == TDD
Wang Tsu-Han's avatar
Wang Tsu-Han committed
801 802 803 804 805 806
	  LOG_D(PHY,"Frame %d Subframe %d Demodulating PUCCH (UCI %d) for ACK/NAK (uci->pucch_fmt %d,uci->type %d.uci->frame %d, uci->subframe %d): n1_pucch0 %d SR_payload %d\n",
		frame,subframe,i,
		uci->pucch_fmt,uci->type,
		uci->frame,uci->subframe,uci->n_pucch_1[0][0],
		SR_payload);
#if 1
807 808 809 810 811 812 813 814 815 816 817 818 819 820 821
	  metric[0] = rx_pucch(eNB,
			       uci->pucch_fmt,
			       i,
			       uci->n_pucch_1[0][0],
			       0, //n2_pucch
			       uci->srs_active, // shortened format
			       pucch_b0b1[0],
			       frame,
			       subframe,
			       PUCCH1a_THRES);
	  if (uci->type==HARQ_SR && metric[0] > metric_SR) SR_payload = 0;
	  else if (SR_payload == 1) fill_sr_indication(eNB,uci->rnti,frame,subframe,metric_SR);
	  
	  if (uci->type==HARQ_SR && metric[0] <= metric_SR) {
	    SR_payload = 1;
822 823 824 825 826 827 828 829 830 831
	    metric[0] = rx_pucch(eNB,
				 pucch_format1b,
				 i,
				 uci->n_pucch_1_0_sr[0],
				 0, //n2_pucch
				 uci->srs_active, // shortened format
				 pucch_b0b1[0],
				 frame,
				 subframe,
				 PUCCH1a_THRES);
832 833 834 835
	  }
#else
	  // if SR was detected, use the n1_pucch from SR
	  if (SR_payload==1) {
836
#ifdef DEBUG_PHY_PROC
837 838
	    LOG_D (PHY, "[eNB %d][PDSCH %x] Frame %d subframe %d Checking ACK/NAK (%d,%d,%d,%d) format %d with SR\n", eNB->Mod_id,
		   eNB->dlsch[UE_id][0]->rnti, frame, subframe, n1_pucch0, n1_pucch1, n1_pucch2, n1_pucch3, format);
839
#endif
840 841 842 843
	    
	    metric[0] = rx_pucch (eNB, pucch_format1b, i, uci->n_pucch_1_0_sr[0], 0,    //n2_pucch
				  uci->srs_active,      // shortened format
				  pucch_b0b1[0], frame, subframe, PUCCH1a_THRES
sharma's avatar
sharma committed
844 845 846 847
#ifdef Rel14
				  ,uci->ue_type
#endif
				  );
848
	  } else {              //using assigned pucch resources
849
#ifdef DEBUG_PHY_PROC
850 851 852
	    LOG_D (PHY, "[eNB %d][PDSCH %x] Frame %d subframe %d Checking ACK/NAK M=%d (%d,%d,%d,%d) format %d\n", eNB->Mod_id,
		   eNB->dlsch[UE_id][0]->rnti,
		   frame, subframe, uci->num_pucch_resources, uci->n_pucch_1[res][0], uci->n_pucch_1[res][1], uci->n_pucch_1[res][2], uci->n_pucch_1[res][3], uci->pucch_fmt);
853
#endif
854 855 856 857 858 859 860 861
	    for (res = 0; res < uci->num_pucch_resources; res++)
	      metric[res] = rx_pucch (eNB, uci->pucch_fmt, i, uci->n_pucch_1[res][0], 0,        // n2_pucch
				      uci->srs_active,  // shortened format
				      pucch_b0b1[res], frame, subframe, PUCCH1a_THRES
#ifdef Rel14
				      ,uci->ue_type
#endif		  
				      );
862 863 864 865 866 867 868 869 870 871
	    for (res=0;res<uci->num_pucch_resources;res++)
	      metric[res] = rx_pucch(eNB,
				     uci->pucch_fmt,
				     i,
				     uci->n_pucch_1[res][0],
				     0, // n2_pucch
				     uci->srs_active, // shortened format
				     pucch_b0b1[res],
				     frame,
				     subframe,
872
				     PUCCH1a_THRES,
sharma's avatar
sharma committed
873
#ifdef Rel14
874 875 876
				     ,uci->ue_type
#endif		  
				     );
877
	  }
Wang Tsu-Han's avatar
Wang Tsu-Han committed
878
#ifdef DEBUG_PHY_PROC
879 880
	  LOG_D(PHY,"RNTI %x type %d SR_payload %d  Frame %d Subframe %d  pucch_b0b1[0][0] %d pucch_b0b1[0][1] %d pucch_b0b1[1][0] %d pucch_b0b1[1][1] %d  \n",
		uci->rnti,uci->type,SR_payload,frame,subframe,pucch_b0b1[0][0],pucch_b0b1[0][1],pucch_b0b1[1][0],pucch_b0b1[1][1]);
sharma's avatar
sharma committed
881
#endif
Wang Tsu-Han's avatar
Wang Tsu-Han committed
882
#endif
883 884 885 886
	  if (SR_payload == 1) { // this implements Table 7.3.1 from 36.213
	    if (pucch_b0b1[0][0] == 4) { // there isn't a likely transmission
	      harq_ack[0] = 4; // DTX
	    }
Wang Tsu-Han's avatar
Wang Tsu-Han committed
887
	    else if (pucch_b0b1[0][0] == 1 && pucch_b0b1[0][1] == 1) { // 1/4/7 ACKs
888 889
	      harq_ack[0] = 1;
	    }
Wang Tsu-Han's avatar
Wang Tsu-Han committed
890
	    else if (pucch_b0b1[0][0] == 1 && pucch_b0b1[0][1] != 1) { // 2/5/8 ACKs
891 892
	      harq_ack[0] = 2;
	    }
Wang Tsu-Han's avatar
Wang Tsu-Han committed
893
	    else if (pucch_b0b1[0][0] != 1 && pucch_b0b1[0][1] == 1) { // 3/6/9 ACKs
894 895
	      harq_ack[0] = 3;
	    }
Wang Tsu-Han's avatar
Wang Tsu-Han committed
896
	    else if (pucch_b0b1[0][0] != 1 && pucch_b0b1[0][1] != 1) { // 0 ACKs, or at least one DL assignment missed
897 898
	      harq_ack[0] = 0;
	    }
Wang Tsu-Han's avatar
Wang Tsu-Han committed
899
	    uci->stat = metric[0];
900 901
	    fill_uci_harq_indication(eNB,uci,frame,subframe,harq_ack,2,0xffff); // special_bundling mode
	  } 
Raymond Knopp's avatar
Raymond Knopp committed
902
	  else if ((uci->tdd_bundling == 0) && (uci->num_pucch_resources==2)){ // multiplexing + no SR, implement Table 10.1.3-5 (Rel14) for multiplexing with M=2
903 904 905 906 907 908 909 910 911 912 913 914 915 916 917 918 919 920 921 922 923 924 925 926 927 928 929 930 931 932 933 934 935 936 937 938 939 940
	    if (pucch_b0b1[0][0] == 4 ||
		pucch_b0b1[1][0] == 4) { // there isn't a likely transmission
	      harq_ack[0] = 4; // DTX
	      harq_ack[1] = 6; // NACK/DTX
	    } 
	    else {
	      if (metric[1]>metric[0]) {
		if (pucch_b0b1[1][0] == 1 && pucch_b0b1[1][1] != 1){
		  harq_ack[0] = 1; // ACK
		  harq_ack[1] = 1; // ACK
		  tdd_multiplexing_mask = 0x3;
		}
		else if (pucch_b0b1[1][0] != 1 && pucch_b0b1[1][1] == 1){
		  harq_ack[0] = 6; // NACK/DTX
		  harq_ack[1] = 1; // ACK
		  tdd_multiplexing_mask = 0x2;
		}
		else {
		  harq_ack[0] = 4; // DTX
		  harq_ack[1] = 4; // DTX
		}
	      }
	      else {
		if (pucch_b0b1[0][0] == 1 && pucch_b0b1[0][1] == 1){
		  harq_ack[0] = 1; // ACK
		  harq_ack[1] = 6; // NACK/DTX
		  tdd_multiplexing_mask = 0x1;
		}
		else if (pucch_b0b1[0][0] != 1 && pucch_b0b1[0][1] != 1){
		  harq_ack[0] = 2; // NACK
		  harq_ack[1] = 6; // NACK/DTX
		}
		else {
		  harq_ack[0] = 4; // DTX
		  harq_ack[1] = 4; // DTX
		}
	      }
	    }
Wang Tsu-Han's avatar
Wang Tsu-Han committed
941
	    uci->stat = max(metric[0],metric[1]);
942
	    fill_uci_harq_indication(eNB,uci,frame,subframe,harq_ack,1,tdd_multiplexing_mask); // multiplexing mode
943
	  } //else if ((uci->tdd_bundling == 0) && (res==2))
Raymond Knopp's avatar
Raymond Knopp committed
944
	  else if ((uci->tdd_bundling == 0) && (uci->num_pucch_resources==3)){ // multiplexing + no SR, implement Table 10.1.3-6 (Rel14) for multiplexing with M=3
945 946 947 948 949 950 951
	    
	    if (harq_ack[0] == 4 ||
		harq_ack[1] == 4 ||
		harq_ack[2] == 4) { // there isn't a likely transmission
	      harq_ack[0] = 4; // DTX
	      harq_ack[1] = 6; // NACK/DTX
	      harq_ack[2] = 6; // NACK/DTX
952
	      max_metric = 0;
953 954 955 956 957 958 959 960 961 962 963 964 965 966 967 968 969 970 971 972 973 974 975 976
	    } 
	    else {
	      
	      max_metric = max(metric[0],max(metric[1],metric[2]));
	      
	      if (metric[0]==max_metric) {
		if (pucch_b0b1[0][0] == 1 && pucch_b0b1[0][1] == 1){
		  harq_ack[0] = 1; // ACK
		  harq_ack[1] = 6; // NACK/DTX
		  harq_ack[2] = 6; // NACK/DTX
		  tdd_multiplexing_mask = 0x1;
		}
		else if (pucch_b0b1[0][0] != 1 && pucch_b0b1[0][1] != 1){
		  harq_ack[0] = 2; // NACK
		  harq_ack[1] = 6; // NACK/DTX
		  harq_ack[2] = 6; // NACK/DTX
		}
		else {
		  harq_ack[0] = 4; // DTX
		  harq_ack[1] = 4; // DTX
		  harq_ack[2] = 4; // DTX
		}
	      } // if (metric[0]==max_metric) {
	      else if (metric[1]==max_metric) {
977 978
		
		if (pucch_b0b1[1][0] == 1 && pucch_b0b1[1][1] != 1){
979 980 981 982 983 984 985 986 987 988 989 990 991 992 993 994 995 996
		  harq_ack[0] = 1; // ACK
		  harq_ack[1] = 1; // ACK
		  harq_ack[2] = 6; // NACK/DTX
		  tdd_multiplexing_mask = 0x3;
		}
		else if (pucch_b0b1[1][0] != 1 && pucch_b0b1[1][1] == 1 ) {
		  harq_ack[0] = 6; // NACK/DTX
		  harq_ack[1] = 1; // ACK
		  harq_ack[2] = 6; // NACK/DTX
		  tdd_multiplexing_mask = 0x2;
		}
		else {
		  harq_ack[0] = 4; // DTX
		  harq_ack[1] = 4; // DTX
		  harq_ack[2] = 4; // DTX
		}
	      } // if (metric[1]==max_metric) {
	      else {
997
		if (pucch_b0b1[2][0] == 1 && pucch_b0b1[2][1] == 1){
998 999 1000 1001 1002 1003 1004 1005 1006 1007 1008 1009 1010 1011 1012 1013 1014 1015 1016 1017 1018 1019 1020 1021
		  harq_ack[0] = 1; // ACK
		  harq_ack[1] = 1; // ACK
		  harq_ack[2] = 1; // ACK
		  tdd_multiplexing_mask = 0x7;
		}
		else if (pucch_b0b1[2][0] == 1 && pucch_b0b1[2][1] != 1 ) {
		  harq_ack[0] = 1; // ACK
		  harq_ack[1] = 6; // NACK/DTX
		  harq_ack[2] = 1; // ACK
		  tdd_multiplexing_mask = 0x5;
		}
		else if (pucch_b0b1[2][0] != 1 && pucch_b0b1[2][1] == 1 ) {
		  harq_ack[0] = 6; // NACK/DTX
		  harq_ack[1] = 1; // ACK
		  harq_ack[2] = 1; // ACK
		  tdd_multiplexing_mask = 0x6;
		}
		else if (pucch_b0b1[2][0] != 1 && pucch_b0b1[2][1] != 1 ) {
		  harq_ack[0] = 6; // NACK/DTX
		  harq_ack[1] = 6; // NACK/DTX
		  harq_ack[2] = 1; // ACK
		  tdd_multiplexing_mask = 0x4;
		}
	      }
1022 1023
	      uci->stat = max_metric;
	      fill_uci_harq_indication(eNB,uci,frame,subframe,harq_ack,1,tdd_multiplexing_mask); // multiplexing mode
1024
	    }
1025
	  } //else if ((uci->tdd_bundling == 0) && (res==3)) 
Raymond Knopp's avatar
Raymond Knopp committed
1026
	  else if ((uci->tdd_bundling == 0) && (uci->num_pucch_resources==4)){ // multiplexing + no SR, implement Table 10.1.3-7 (Rel14) for multiplexing with M=4
1027 1028 1029 1030 1031 1032 1033 1034
	    if (pucch_b0b1[0][0] == 4 ||
		pucch_b0b1[1][0] == 4 ||
		pucch_b0b1[2][0] == 4 ||
		pucch_b0b1[3][0] == 4) { // there isn't a likely transmission
	      harq_ack[0] = 4; // DTX
	      harq_ack[1] = 6; // NACK/DTX
	      harq_ack[2] = 6; // NACK/DTX
	      harq_ack[3] = 6; // NACK/DTX
1035
	      max_metric = 0;
1036
	    } else {
1037
	      
1038 1039 1040 1041 1042 1043 1044 1045 1046 1047 1048 1049 1050 1051 1052 1053 1054 1055 1056 1057 1058 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 1096 1097 1098 1099 1100 1101 1102 1103 1104 1105 1106 1107 1108 1109 1110 1111 1112 1113 1114 1115 1116 1117 1118 1119 1120 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 1152 1153 1154 1155 1156 1157 1158 1159
	      max_metric = max(metric[0],max(metric[1],max(metric[2],metric[3])));
	      
	      if (metric[0]==max_metric) {
		if (pucch_b0b1[0][0] == 1 && pucch_b0b1[0][1] != 1){
		  harq_ack[0] = 2; // NACK
		  harq_ack[1] = 4; // DTX
		  harq_ack[2] = 4; // DTX
		  harq_ack[3] = 4; // DTX
		}
		else if (pucch_b0b1[0][0] != 1 && pucch_b0b1[0][1] == 1){
		  harq_ack[0] = 1; // ACK
		  harq_ack[1] = 6; // NACK/DTX
		  harq_ack[2] = 6; // NACK/DTX
		  harq_ack[3] = 1; // ACK
		  tdd_multiplexing_mask = 0x9;
		}
		else if (pucch_b0b1[0][0] == 1 && pucch_b0b1[0][1] == 1){
		  harq_ack[0] = 1; // ACK
		  harq_ack[1] = 6; // NACK/DTX
		  harq_ack[2] = 6; // NACK/DTX
		  harq_ack[3] = 6; // NACK/DTX
		  tdd_multiplexing_mask = 0x1;
		}
		else if (pucch_b0b1[0][0] != 1 && pucch_b0b1[0][1] != 1){
		  harq_ack[0] = 2; // NACK
		  harq_ack[1] = 6; // NACK/DTX
		  harq_ack[2] = 6; // NACK/DTX
		  harq_ack[3] = 6; // NACK/DTX
		}
		
	      } 
	      else if (metric[1]==max_metric) {
		if (pucch_b0b1[1][0] == 1 && pucch_b0b1[1][1] == 1){
		  harq_ack[0] = 1; // ACK
		  harq_ack[1] = 1; // ACK
		  harq_ack[2] = 1; // ACK
		  harq_ack[3] = 1; // ACK
		  tdd_multiplexing_mask = 0xF;
		}
		else if (pucch_b0b1[1][0] == 1 && pucch_b0b1[1][1] != 1 ) {
		  harq_ack[0] = 1; // ACK
		  harq_ack[1] = 1; // ACK
		  harq_ack[2] = 6; // NACK/DTX
		  harq_ack[3] = 6; // NACK/DTX
		  tdd_multiplexing_mask = 0x3;
		}
		else if (pucch_b0b1[1][0] != 1 && pucch_b0b1[1][1] != 1 ) {
		  harq_ack[0] = 6; // NACK/DTX
		  harq_ack[1] = 1; // ACK
		  harq_ack[2] = 1; // ACK
		  harq_ack[3] = 1; // ACK
		  tdd_multiplexing_mask = 0xE;
		}
		else if (pucch_b0b1[1][0] != 1 && pucch_b0b1[1][1] == 1 ) {
		  harq_ack[0] = 6; // NACK/DTX
		  harq_ack[1] = 1; // ACK
		  harq_ack[2] = 6; // NACK/DTX
		  harq_ack[3] = 6; // NACK/DTX
		  tdd_multiplexing_mask = 0x2;
		}
	      } 
	      else if (metric[2]==max_metric) {
		if (pucch_b0b1[2][0] == 1 && pucch_b0b1[2][1] == 1){
		  harq_ack[0] = 1; // ACK
		  harq_ack[1] = 1; // ACK
		  harq_ack[2] = 1; // ACK
		  harq_ack[3] = 6; // NACK/DTX
		  tdd_multiplexing_mask = 0x7;
		}
		else if (pucch_b0b1[2][0] == 1 && pucch_b0b1[2][1] != 1 ) {
		  harq_ack[0] = 1; // ACK
		  harq_ack[1] = 6; // NACK/DTX
		  harq_ack[2] = 1; // ACK
		  harq_ack[3] = 6; // NACK/DTX
		  tdd_multiplexing_mask = 0x5;
		}
		else if (pucch_b0b1[2][0] != 1 && pucch_b0b1[2][1] == 1 ) {
		  harq_ack[0] = 4; // NACK/DTX
		  harq_ack[1] = 1; // ACK
		  harq_ack[2] = 1; // ACK
		  harq_ack[3] = 4; // NACK/DTX
		  tdd_multiplexing_mask = 0x6;
		}
		else if (pucch_b0b1[2][0] != 1 && pucch_b0b1[2][1] != 1 ) {
		  harq_ack[0] = 4; // NACK/DTX
		  harq_ack[1] = 4; // NACK/DTX
		  harq_ack[2] = 1; // ACK
		  harq_ack[3] = 4; // NACK/DTX
		  tdd_multiplexing_mask = 0x4;
		}
	      } 
	      else { // max_metric[3]=max_metric
		if (pucch_b0b1[2][0] == 1 && pucch_b0b1[2][1] == 1){
		  harq_ack[0] = 1; // ACK
		  harq_ack[1] = 6; // NACK/DTX
		  harq_ack[2] = 1; // ACK
		  harq_ack[3] = 1; // ACK
		  tdd_multiplexing_mask = 0xD;
		}
		else if (pucch_b0b1[2][0] == 1 && pucch_b0b1[2][1] != 1 ) {
		  harq_ack[0] = 6; // NACK/DTX
		  harq_ack[1] = 1; // ACK
		  harq_ack[2] = 6; // NACK/DTX
		  harq_ack[3] = 1; // ACK
		  tdd_multiplexing_mask = 0xA;
		}
		else if (pucch_b0b1[2][0] != 1 && pucch_b0b1[2][1] == 1 ) {
		  harq_ack[0] = 6; // NACK/DTX
		  harq_ack[1] = 6; // NACK/DTX
		  harq_ack[2] = 1; // ACK
		  harq_ack[3] = 1; // ACK
		  tdd_multiplexing_mask = 0xC;
		}
		else if (pucch_b0b1[2][0] != 1 && pucch_b0b1[2][1] != 1 ) {
		  harq_ack[0] = 6; // NACK/DTX
		  harq_ack[1] = 6; // NACK/DTX
		  harq_ack[2] = 6; // NACK/DTX
		  harq_ack[3] = 1; // ACK
		  tdd_multiplexing_mask = 0x8;
		}
	      }
	    }
Wang Tsu-Han's avatar
Wang Tsu-Han committed
1160
	    uci->stat = max_metric;
1161
	    fill_uci_harq_indication(eNB,uci,frame,subframe,harq_ack,1,tdd_multiplexing_mask); // multiplexing mode
1162
	  } // else if ((uci->tdd_bundling == 0) && (res==4))
1163 1164 1165
	  else { // bundling
	    harq_ack[0] = pucch_b0b1[0][0];
	    harq_ack[1] = pucch_b0b1[0][1];
Wang Tsu-Han's avatar
Wang Tsu-Han committed
1166 1167
	    uci->stat = metric[0];
	    LOG_D(PHY,"bundling: (%d,%d), metric %d\n",harq_ack[0],harq_ack[1],uci->stat);
1168 1169
	    fill_uci_harq_indication(eNB,uci,frame,subframe,harq_ack,0,0xffff); // special_bundling mode
	  }
1170
	  
1171
#ifdef DEBUG_PHY_PROC
1172 1173
	  LOG_D (PHY, "[eNB %d][PDSCH %x] Frame %d subframe %d ACK/NAK metric 0 %d, metric 1 %d, (%d,%d)\n", eNB->Mod_id,
		 eNB->dlsch[UE_id][0]->rnti, frame, subframe, metric0, metric1, pucch_b0b1[0], pucch_b0b1[1]);
1174
#endif
1175 1176 1177
	}
	break;
      default:
1178
	AssertFatal (1 == 0, "Unsupported UCI type %d\n", uci->type);
1179
	break;
Cedric Roux's avatar
Cedric Roux committed
1180
      }
1181
      
1182
      if (SR_payload == 1) {
1183
	LOG_D (PHY, "[eNB %d][SR %x] Frame %d subframe %d Got SR for PUSCH, transmitting to MAC\n", eNB->Mod_id, uci->rnti, frame, subframe);
1184
	
1185
	if (eNB->first_sr[i] == 1) {    // this is the first request for uplink after Connection Setup, so clear HARQ process 0 use for Msg4
1186
	  eNB->first_sr[i] = 0;
1187 1188 1189
	  eNB->dlsch[i][0]->harq_processes[0]->round = 0;
	  eNB->dlsch[i][0]->harq_processes[0]->status = SCH_IDLE;
	  LOG_D (PHY, "[eNB %d][SR %x] Frame %d subframe %d First SR\n", eNB->Mod_id, eNB->ulsch[i]->rnti, frame, subframe);
1190
	}
Cedric Roux's avatar
Cedric Roux committed
1191 1192 1193
      }
    }
  }
1194
}
1195

1196
void pusch_procedures (PHY_VARS_eNB * eNB, eNB_rxtx_proc_t * proc) {
Raymond Knopp's avatar
Raymond Knopp committed
1197 1198 1199 1200
  uint32_t        ret = 0, i;
  uint32_t        harq_pid;
  uint8_t         nPRS;
  LTE_DL_FRAME_PARMS *fp = &eNB->frame_parms;
1201 1202
  LTE_eNB_ULSCH_t *ulsch;
  LTE_UL_eNB_HARQ_t *ulsch_harq;
1203
  
1204 1205
  const int subframe = proc->subframe_rx;
  const int frame    = proc->frame_rx;
1206
  
Wang Tsu-Han's avatar
Wang Tsu-Han committed
1207
  harq_pid = subframe2harq_pid(&eNB->frame_parms,frame,subframe);
1208

1209
  
Raymond Knopp's avatar
Raymond Knopp committed
1210
  for (i = 0; i < NUMBER_OF_UE_MAX; i++) {
1211
    ulsch = eNB->ulsch[i];
1212
    if (ulsch->ue_type > 0) harq_pid = 0;
1213
    
1214
    ulsch_harq = ulsch->harq_processes[harq_pid];
1215
    
1216 1217
    if (ulsch->rnti>0) LOG_D(PHY,"eNB->ulsch[%d]->harq_processes[harq_pid:%d] SFN/SF:%04d%d: PUSCH procedures, UE %d/%x ulsch_harq[status:%d SFN/SF:%04d%d handled:%d]\n",
			     i, harq_pid, frame,subframe,i,ulsch->rnti,
1218
			     ulsch_harq->status, ulsch_harq->frame, ulsch_harq->subframe, ulsch_harq->handled);
1219
    
1220
    if ((ulsch) &&
1221 1222 1223 1224 1225
	(ulsch->rnti>0) &&
	(ulsch_harq->status == ACTIVE) &&
	(ulsch_harq->frame == frame) &&
	(ulsch_harq->subframe == subframe) &&
	(ulsch_harq->handled == 0)) {
1226
      
1227
      // UE has ULSCH scheduling
1228
      for (int rb=0;
1229
	   rb<=ulsch_harq->nb_rb;
1230 1231 1232
	   rb++) {
	int rb2 = rb+ulsch_harq->first_rb;
	eNB->rb_mask_ul[rb2>>5] |= (1<<(rb2&31));
1233
      }
Wang Tsu-Han's avatar
Wang Tsu-Han committed
1234
      
Cedric Roux's avatar
Cedric Roux committed
1235
      LOG_D(PHY,"[eNB %d] frame %d, subframe %d: Scheduling ULSCH Reception for UE %d \n", eNB->Mod_id, frame, subframe, i);
Wang Tsu-Han's avatar
Wang Tsu-Han committed
1236
      
1237
      nPRS = fp->pusch_config_common.ul_ReferenceSignalsPUSCH.nPRS[subframe<<1];
Wang Tsu-Han's avatar
Wang Tsu-Han committed
1238
      
Cedric Roux's avatar
Cedric Roux committed
1239
      ulsch->cyclicShift = (ulsch_harq->n_DMRS2 +
Wang Tsu-Han's avatar
Wang Tsu-Han committed
1240 1241 1242
			    fp->pusch_config_common.ul_ReferenceSignalsPUSCH.cyclicShift +
			    nPRS)%12;
      AssertFatal(ulsch_harq->TBS>0,"illegal TBS %d\n",ulsch_harq->TBS); 
1243
      LOG_D(PHY,
Wang Tsu-Han's avatar
Wang Tsu-Han committed
1244 1245 1246 1247 1248 1249 1250 1251 1252 1253 1254 1255 1256 1257 1258 1259 1260 1261 1262 1263 1264 1265 1266 1267 1268 1269 1270 1271 1272 1273 1274 1275 1276
	    "[eNB %d][PUSCH %d] Frame %d Subframe %d Demodulating PUSCH: dci_alloc %d, rar_alloc %d, round %d, first_rb %d, nb_rb %d, Qm %d, TBS %d, rv %d, cyclic_shift %d (n_DMRS2 %d, cyclicShift_common %d, ), O_ACK %d, beta_cqi %d \n",
	    eNB->Mod_id,harq_pid,frame,subframe,
	    ulsch_harq->dci_alloc,
	    ulsch_harq->rar_alloc,
	    ulsch_harq->round,
	    ulsch_harq->first_rb,
	    ulsch_harq->nb_rb,
	    ulsch_harq->Qm,
	    ulsch_harq->TBS,
	    ulsch_harq->rvidx,
	    ulsch->cyclicShift,
	    ulsch_harq->n_DMRS2,
	    fp->pusch_config_common.ul_ReferenceSignalsPUSCH.cyclicShift,
	    ulsch_harq->O_ACK,
	    ulsch->beta_offset_cqi_times8);
      
      start_meas(&eNB->ulsch_demodulation_stats);
      
      rx_ulsch(eNB,proc, i);
      
      stop_meas(&eNB->ulsch_demodulation_stats);
      
      start_meas(&eNB->ulsch_decoding_stats);
      
      ret = ulsch_decoding(eNB,proc,
			   i,
			   0, // control_only_flag
			   ulsch_harq->V_UL_DAI,
			   ulsch_harq->nb_rb>20 ? 1 : 0);
      
      stop_meas(&eNB->ulsch_decoding_stats);
      
      LOG_D(PHY,"[eNB %d][PUSCH %d] frame %d subframe %d RNTI %x RX power (%d,%d) N0 (%d,%d) dB ACK (%d,%d), decoding iter %d ulsch_harq->cqi_crc_status:%d ackBits:%d ulsch_decoding_stats[t:%lld max:%lld]\n",
1277 1278 1279 1280 1281 1282 1283 1284 1285 1286 1287 1288 1289
	    eNB->Mod_id,harq_pid,
	    frame,subframe,
	    ulsch->rnti,
	    dB_fixed(eNB->pusch_vars[i]->ulsch_power[0]),
	    dB_fixed(eNB->pusch_vars[i]->ulsch_power[1]),
	    30,//eNB->measurements.n0_power_dB[0],
	    30,//eNB->measurements.n0_power_dB[1],
	    ulsch_harq->o_ACK[0],
	    ulsch_harq->o_ACK[1],
	    ret,
	    ulsch_harq->cqi_crc_status,
	    ulsch_harq->O_ACK,
	    eNB->ulsch_decoding_stats.p_time, eNB->ulsch_decoding_stats.max);
Wang Tsu-Han's avatar
Wang Tsu-Han committed
1290
      
1291
      //compute the expected ULSCH RX power (for the stats)
Wang Tsu-Han's avatar
Wang Tsu-Han committed
1292 1293
      ulsch_harq->delta_TF = get_hundred_times_delta_IF_eNB(eNB,i,harq_pid, 0); // 0 means bw_factor is not considered
      
1294
      if (RC.mac != NULL) { /* ulsim dose not use RC.mac context. */
1295
	if (ulsch_harq->cqi_crc_status == 1) {
1296
#ifdef DEBUG_PHY_PROC
1297 1298
	  //if (((frame%10) == 0) || (frame < 50))
	  print_CQI(ulsch_harq->o,ulsch_harq->uci_format,0,fp->N_RB_DL);
1299
#endif
1300 1301 1302 1303 1304 1305 1306 1307 1308
	  fill_ulsch_cqi_indication(eNB,frame,subframe,ulsch_harq,ulsch->rnti);
	  RC.mac[eNB->Mod_id]->UE_list.UE_sched_ctrl[i].cqi_req_flag &= (~(1 << subframe));
	} else {
	  if(RC.mac[eNB->Mod_id]->UE_list.UE_sched_ctrl[i].cqi_req_flag & (1 << subframe) ){
	    RC.mac[eNB->Mod_id]->UE_list.UE_sched_ctrl[i].cqi_req_flag &= (~(1 << subframe));
	    RC.mac[eNB->Mod_id]->UE_list.UE_sched_ctrl[i].cqi_req_timer=30;
	    LOG_D(PHY,"Frame %d,Subframe %d, We're supposed to get a cqi here. Set cqi_req_timer to 30.\n",frame,subframe);
	  }
	}
1309
      }
1310
      
1311
      if (ret == (1+MAX_TURBO_ITERATIONS)) {
Wang Tsu-Han's avatar
Wang Tsu-Han committed
1312 1313 1314
	T(T_ENB_PHY_ULSCH_UE_NACK, T_INT(eNB->Mod_id), T_INT(frame), T_INT(subframe), T_INT(ulsch->rnti),
	  T_INT(harq_pid));
	
1315 1316
	fill_crc_indication(eNB,i,frame,subframe,1); // indicate NAK to MAC
	fill_rx_indication(eNB,i,frame,subframe);  // indicate SDU to MAC
Wang Tsu-Han's avatar
Wang Tsu-Han committed
1317
	
1318 1319 1320
	LOG_D(PHY,"[eNB %d][PUSCH %d] frame %d subframe %d UE %d Error receiving ULSCH, round %d/%d (ACK %d,%d)\n",
	      eNB->Mod_id,harq_pid,
	      frame,subframe, i,
1321
	      ulsch_harq->round,
1322 1323 1324
	      ulsch->Mlimit,
	      ulsch_harq->o_ACK[0],
	      ulsch_harq->o_ACK[1]);
Wang Tsu-Han's avatar
Wang Tsu-Han committed
1325
	
1326
	if (ulsch_harq->round >= 3)  {
Wang Tsu-Han's avatar
Wang Tsu-Han committed
1327 1328 1329 1330 1331
	  ulsch_harq->status  = SCH_IDLE;
	  ulsch_harq->handled = 0;
	  ulsch->harq_mask   &= ~(1 << harq_pid);
	  ulsch_harq->round   = 0;
	}
1332 1333
	
	MSC_LOG_RX_DISCARDED_MESSAGE(
Wang Tsu-Han's avatar
Wang Tsu-Han committed
1334 1335 1336 1337 1338 1339 1340 1341
				     MSC_PHY_ENB,MSC_PHY_UE,
				     NULL,0,
				     "%05u:%02u ULSCH received rnti %x harq id %u round %d",
				     frame,subframe,
				     ulsch->rnti,harq_pid,
				     ulsch_harq->round-1
				     );
	
1342 1343 1344 1345 1346 1347
	/* Mark the HARQ process to release it later if max transmission reached
	 * (see below).
	 * MAC does not send the max transmission count, we have to deal with it
	 * locally in PHY.
	 */
	ulsch_harq->handled = 1;
Raymond Knopp's avatar
Raymond Knopp committed
1348
      }                         // ulsch in error
1349
      else {
1350 1351
	fill_crc_indication(eNB,i,frame,subframe,0); // indicate ACK to MAC
	fill_rx_indication(eNB,i,frame,subframe);  // indicate SDU to MAC
1352 1353 1354 1355 1356 1357 1358 1359 1360 1361 1362 1363 1364 1365
	ulsch_harq->status = SCH_IDLE;
	ulsch->harq_mask &= ~(1 << harq_pid);
	
	T (T_ENB_PHY_ULSCH_UE_ACK, T_INT (eNB->Mod_id), T_INT (frame), T_INT (subframe), T_INT (ulsch->rnti), T_INT (harq_pid));

	MSC_LOG_RX_MESSAGE(
			   MSC_PHY_ENB,MSC_PHY_UE,
			   NULL,0,
			   "%05u:%02u ULSCH received rnti %x harq id %u",
			   frame,subframe,
			   ulsch->rnti,harq_pid
			   );
	
	
1366
#ifdef DEBUG_PHY_PROC
1367
#ifdef DEBUG_ULSCH
1368 1369 1370 1371 1372 1373 1374
	LOG_D(PHY,"[eNB] Frame %d, Subframe %d : ULSCH SDU (RX harq_pid %d) %d bytes:",frame,subframe,
	      harq_pid,ulsch_harq->TBS>>3);
	
	for (j=0; j<ulsch_harq->TBS>>3; j++)
	  LOG_T(PHY,"%x.",ulsch->harq_processes[harq_pid]->b[j]);
	
	LOG_T(PHY,"\n");
1375
#endif
1376
#endif
Wang Tsu-Han's avatar
Wang Tsu-Han committed
1377
      }  // ulsch not in error
1378
      
1379
      if (ulsch_harq->O_ACK>0) fill_ulsch_harq_indication(eNB,ulsch_harq,ulsch->rnti,frame,subframe,ulsch->bundling);
Wang Tsu-Han's avatar
Wang Tsu-Han committed
1380
      
1381
      LOG_D(PHY,"[eNB %d] Frame %d subframe %d: received ULSCH harq_pid %d for UE %d, ret = %d, CQI CRC Status %d, ACK %d,%d, ulsch_errors %d/%d\n",
1382 1383 1384 1385 1386 1387 1388 1389 1390
	    eNB->Mod_id,frame,subframe,
	    harq_pid,
	    i,
	    ret,
	    ulsch_harq->cqi_crc_status,
	    ulsch_harq->o_ACK[0],
	    ulsch_harq->o_ACK[1],
	    eNB->UE_stats[i].ulsch_errors[harq_pid],
	    eNB->UE_stats[i].ulsch_decoding_attempts[harq_pid][0]);
1391
    } //     if ((ulsch) &&
Raymond Knopp's avatar
Raymond Knopp committed
1392 1393
    //         (ulsch->rnti>0) &&
    //         (ulsch_harq->status == ACTIVE))
1394
    else if ((ulsch) &&
1395 1396 1397 1398 1399
	     (ulsch->rnti>0) &&
	     (ulsch_harq->status == ACTIVE) &&
	     (ulsch_harq->frame == frame) &&
	     (ulsch_harq->subframe == subframe) &&
	     (ulsch_harq->handled == 1)) {
Cedric Roux's avatar
Cedric Roux committed
1400 1401 1402
      // this harq process is stale, kill it, this 1024 frames later (10s), consider reducing that
      ulsch_harq->status = SCH_IDLE;
      ulsch_harq->handled = 0;
Raymond Knopp's avatar
Raymond Knopp committed
1403 1404
      ulsch->harq_mask &= ~(1 << harq_pid);
      LOG_W (PHY, "Removing stale ULSCH config for UE %x harq_pid %d (harq_mask is now 0x%2.2x)\n", ulsch->rnti, harq_pid, ulsch->harq_mask);
1405
    }
1406
  }   //   for (i=0; i<NUMBER_OF_UE_MAX; i++)
1407
}
1408

Raymond Knopp's avatar
Raymond Knopp committed
1409
extern int      oai_exit;
1410

Raymond Knopp's avatar
Raymond Knopp committed
1411
extern void    *td_thread (void *);
1412

Wang Tsu-Han's avatar
Wang Tsu-Han committed
1413
void init_td_thread(PHY_VARS_eNB *eNB) {
1414

Raymond Knopp's avatar
Raymond Knopp committed
1415
  eNB_proc_t     *proc = &eNB->proc;
1416
  
1417
  proc->tdp.eNB = eNB;
1418
  proc->instance_cnt_td         = -1;
Wang Tsu-Han's avatar
Wang Tsu-Han committed
1419 1420
  
  pthread_attr_init( &proc->attr_td);  
1421 1422
  pthread_mutex_init( &proc->mutex_td, NULL);
  pthread_cond_init( &proc->cond_td, NULL);
Wang Tsu-Han's avatar
Wang Tsu-Han committed
1423 1424
  
  pthread_create(&proc->pthread_td, &proc->attr_td, td_thread, (void*)&proc->tdp);
1425
  
Wang Tsu-Han's avatar
Wang Tsu-Han committed
1426 1427 1428 1429 1430 1431 1432 1433 1434
}
void kill_td_thread(PHY_VARS_eNB *eNB) {
  eNB_proc_t *proc = &eNB->proc;
  proc->instance_cnt_td         = 0;
  pthread_cond_signal(&proc->cond_td);
  
  pthread_join(proc->pthread_td, NULL);
  pthread_mutex_destroy( &proc->mutex_td );
  pthread_cond_destroy( &proc->cond_td );
1435 1436
}

Raymond Knopp's avatar
Raymond Knopp committed
1437
extern void    *te_thread (void *);
1438

Eurecom's avatar
Eurecom committed
1439
void init_te_thread(PHY_VARS_eNB *eNB) {
1440

Raymond Knopp's avatar
Raymond Knopp committed
1441
  eNB_proc_t     *proc = &eNB->proc;
1442
    
Wang Tsu-Han's avatar
Wang Tsu-Han committed
1443 1444 1445
  for(int i=0; i<3 ;i++){
    proc->tep[i].eNB = eNB;
    proc->tep[i].instance_cnt_te         = -1;
1446
    
Wang Tsu-Han's avatar
Wang Tsu-Han committed
1447 1448 1449
    pthread_mutex_init( &proc->tep[i].mutex_te, NULL);
    pthread_cond_init( &proc->tep[i].cond_te, NULL);
    pthread_attr_init( &proc->tep[i].attr_te);
1450
    
Wang Tsu-Han's avatar
Wang Tsu-Han committed
1451
    LOG_I(PHY,"Creating te_thread %d\n",i);
Wang Tsu-Han's avatar
Wang Tsu-Han committed
1452 1453 1454 1455
    pthread_create(&proc->tep[i].pthread_te, &proc->tep[i].attr_te, te_thread, (void*)&proc->tep[i]);
  }
}
void kill_te_thread(PHY_VARS_eNB *eNB) {
1456
  
Wang Tsu-Han's avatar
Wang Tsu-Han committed
1457
  eNB_proc_t *proc = &eNB->proc;
1458
  
Wang Tsu-Han's avatar
Wang Tsu-Han committed
1459 1460 1461 1462
  for(int i=0; i<3 ;i++){
    proc->tep[i].instance_cnt_te         = 0;
    pthread_cond_signal(&proc->tep[i].cond_te);
    pthread_join(proc->tep[i].pthread_te, NULL);
Wang Tsu-Han's avatar
Wang Tsu-Han committed
1463 1464
    pthread_mutex_destroy( &proc->tep[i].mutex_te);
    pthread_cond_destroy( &proc->tep[i].cond_te);
Wang Tsu-Han's avatar
Wang Tsu-Han committed
1465
  }
1466 1467
}

1468
void fill_rx_indication(PHY_VARS_eNB *eNB,int UE_id,int frame,int subframe) {
1469
  nfapi_rx_indication_pdu_t *pdu;
1470
  
Raymond Knopp's avatar
Raymond Knopp committed
1471 1472
  int             timing_advance_update;
  int             sync_pos;
1473
  
1474
  uint32_t        harq_pid;
1475
  
1476 1477 1478 1479 1480 1481 1482 1483
#ifdef Rel14
  if (eNB->ulsch[UE_id]->ue_type > 0) harq_pid = 0;
  else
#endif
    {
      harq_pid = subframe2harq_pid (&eNB->frame_parms,
				    frame, subframe);
    }
1484
  
1485
  pthread_mutex_lock(&eNB->UL_INFO_mutex);
1486
  
1487 1488
  eNB->UL_INFO.rx_ind.sfn_sf                    = frame<<4| subframe;
  eNB->UL_INFO.rx_ind.rx_indication_body.tl.tag = NFAPI_RX_INDICATION_BODY_TAG;
1489
  
1490
  pdu                                    = &eNB->UL_INFO.rx_ind.rx_indication_body.rx_pdu_list[eNB->UL_INFO.rx_ind.rx_indication_body.number_of_pdus];
1491
  
1492
  //  pdu->rx_ue_information.handle          = eNB->ulsch[UE_id]->handle;
1493
  pdu->rx_ue_information.tl.tag          = NFAPI_RX_UE_INFORMATION_TAG;
1494
  pdu->rx_ue_information.rnti            = eNB->ulsch[UE_id]->rnti;
1495
  pdu->rx_indication_rel8.tl.tag         = NFAPI_RX_INDICATION_REL8_TAG;
1496
  pdu->rx_indication_rel8.length         = eNB->ulsch[UE_id]->harq_processes[harq_pid]->TBS>>3;
1497 1498
  pdu->rx_indication_rel8.offset         = 1;   // DJP - I dont understand - but broken unless 1 ????  0;  // filled in at the end of the UL_INFO formation
  pdu->data                              = eNB->ulsch[UE_id]->harq_processes[harq_pid]->b;  
1499 1500
  // estimate timing advance for MAC
  sync_pos                               = lte_est_timing_advance_pusch(eNB,UE_id);
Cedric Roux's avatar
Cedric Roux committed
1501
  timing_advance_update                  = sync_pos; // - eNB->frame_parms.nb_prefix_samples/4; //to check
1502

1503
  
1504 1505
  //  if (timing_advance_update > 10) { dump_ulsch(eNB,frame,subframe,UE_id); exit(-1);}
  //  if (timing_advance_update < -10) { dump_ulsch(eNB,frame,subframe,UE_id); exit(-1);}
1506
  switch (eNB->frame_parms.N_RB_DL) {
Raymond Knopp's avatar
Raymond Knopp committed
1507 1508 1509 1510 1511 1512 1513 1514 1515 1516 1517 1518 1519 1520 1521 1522 1523 1524 1525
  case 6:                      /* nothing to do */
    break;
  case 15:
    timing_advance_update /= 2;
    break;
  case 25:
    timing_advance_update /= 4;
    break;
  case 50:
    timing_advance_update /= 8;
    break;
  case 75:
    timing_advance_update /= 12;
    break;
  case 100:
    timing_advance_update /= 16;
    break;
  default:
    abort ();
1526 1527
  }
  // put timing advance command in 0..63 range
Cedric Roux's avatar
Cedric Roux committed
1528
  timing_advance_update += 31;
Raymond Knopp's avatar
Raymond Knopp committed
1529 1530 1531 1532
  if (timing_advance_update < 0)
    timing_advance_update = 0;
  if (timing_advance_update > 63)
    timing_advance_update = 63;
Cedric Roux's avatar
Cedric Roux committed
1533
  pdu->rx_indication_rel8.timing_advance = timing_advance_update;
1534
  
1535
  // estimate UL_CQI for MAC (from antenna port 0 only)
Wang Tsu-Han's avatar
Wang Tsu-Han committed
1536
  int SNRtimes10 = dB_fixed_times10(eNB->pusch_vars[UE_id]->ulsch_power[0]) - 300;//(10*eNB->measurements.n0_power_dB[0]);
1537
  
1538

Raymond Knopp's avatar
Raymond Knopp committed
1539 1540 1541 1542 1543 1544
  if (SNRtimes10 < -640)
    pdu->rx_indication_rel8.ul_cqi = 0;
  else if (SNRtimes10 > 635)
    pdu->rx_indication_rel8.ul_cqi = 255;
  else
    pdu->rx_indication_rel8.ul_cqi = (640 + SNRtimes10) / 5;
1545
  
1546
  LOG_D(PHY,"[PUSCH %d] Frame %d Subframe %d Filling RX_indication with SNR %d (%d), timing_advance %d (update %d)\n",
1547
		  harq_pid,frame,subframe,SNRtimes10,pdu->rx_indication_rel8.ul_cqi,pdu->rx_indication_rel8.timing_advance,
1548
	timing_advance_update);
1549
  
1550 1551
  eNB->UL_INFO.rx_ind.rx_indication_body.number_of_pdus++;
  eNB->UL_INFO.rx_ind.sfn_sf = frame<<4 | subframe;
1552 1553
  pthread_mutex_unlock(&eNB->UL_INFO_mutex);
}
1554

1555
/* release the harq if its round is >= 'after_rounds' */
1556 1557
static void do_release_harq(PHY_VARS_eNB *eNB,int UE_id,int tb,uint16_t frame,uint8_t subframe,uint16_t mask, int after_rounds) {
  
1558 1559 1560
  LTE_eNB_DLSCH_t *dlsch0=NULL,*dlsch1=NULL;
  LTE_DL_eNB_HARQ_t *dlsch0_harq=NULL,*dlsch1_harq=NULL;
  int harq_pid;
Wang Tsu-Han's avatar
Wang Tsu-Han committed
1561
  int subframe_tx,frame_tx;
1562
  int M,m;
Raymond Knopp's avatar
Raymond Knopp committed
1563 1564
  AssertFatal (UE_id != -1, "no existing dlsch context\n");
  AssertFatal (UE_id < NUMBER_OF_UE_MAX, "returned UE_id %d >= %d(NUMBER_OF_UE_MAX)\n", UE_id, NUMBER_OF_UE_MAX);
1565 1566
  dlsch0 = eNB->dlsch[UE_id][0];
  dlsch1 = eNB->dlsch[UE_id][1];
1567
  
1568 1569
  if (eNB->frame_parms.frame_type == FDD) {  
    subframe_tx = (subframe+6)%10;
Wang Tsu-Han's avatar
Wang Tsu-Han committed
1570 1571
    frame_tx = ul_ACK_subframe2_dl_frame(&eNB->frame_parms,frame,subframe,subframe_tx);
    harq_pid = dlsch0->harq_ids[frame_tx%2][subframe_tx]; // or just use 0 for fdd?
1572
    
1573 1574 1575 1576
    AssertFatal((harq_pid>=0) && (harq_pid<10),"harq_pid %d not in 0...9\n",harq_pid);
    dlsch0_harq     = dlsch0->harq_processes[harq_pid];
    dlsch1_harq     = dlsch1->harq_processes[harq_pid];
    AssertFatal(dlsch0_harq!=NULL,"dlsch0_harq is null\n");
1577
    
Cedric Roux's avatar
Cedric Roux committed
1578 1579 1580
#if T_TRACER
    if (after_rounds != -1) {
      T(T_ENB_PHY_DLSCH_UE_NACK, T_INT(0), T_INT(frame), T_INT(subframe),
1581
	T_INT(dlsch0->rnti), T_INT(harq_pid));
Cedric Roux's avatar
Cedric Roux committed
1582 1583
    } else {
      T(T_ENB_PHY_DLSCH_UE_ACK, T_INT(0), T_INT(frame), T_INT(subframe),
1584
	T_INT(dlsch0->rnti), T_INT(harq_pid));
Cedric Roux's avatar
Cedric Roux committed
1585 1586
    }
#endif
1587
    
1588 1589 1590
    if (dlsch0_harq->round >= after_rounds) {
      dlsch0_harq->status = SCH_IDLE;
      /*if ((dlsch1_harq == NULL)||
1591 1592
	((dlsch1_harq!=NULL)&&
	(dlsch1_harq->status == SCH_IDLE)))*/
1593 1594
      dlsch0->harq_mask   &= ~(1<<harq_pid);
    }
1595
    LOG_D(PHY,"Frame %d, subframe %d: Releasing harq %d for UE %x\n",frame,subframe,harq_pid,dlsch0->rnti);
1596
    
1597 1598
  }
  else { // release all processes in the bundle that was acked, based on mask
Raymond Knopp's avatar
Raymond Knopp committed
1599
    // This is at most 4 for multiplexing and 9 for bundling/special bundling
1600
    M=ul_ACK_subframe2_M(&eNB->frame_parms,
1601 1602
			 subframe);
    
1603 1604 1605 1606
    for (m=0; m<M; m++) {
      subframe_tx = ul_ACK_subframe2_dl_subframe(&eNB->frame_parms,
						 subframe,
						 m);
Wang Tsu-Han's avatar
Wang Tsu-Han committed
1607
      frame_tx = ul_ACK_subframe2_dl_frame(&eNB->frame_parms,frame,subframe,subframe_tx);
1608
      if (((1<<m)&mask) > 0) {
1609
	harq_pid = dlsch0->harq_ids[frame_tx%2][subframe_tx];
Wang Tsu-Han's avatar
Wang Tsu-Han committed
1610
	if ((harq_pid>=0) && (harq_pid<dlsch0->Mdlharq)) {
1611 1612 1613
	  dlsch0_harq     = dlsch0->harq_processes[harq_pid];
	  dlsch1_harq     = dlsch1->harq_processes[harq_pid];
	  AssertFatal(dlsch0_harq!=NULL,"dlsch0_harq is null\n");
1614
	  
Cedric Roux's avatar
Cedric Roux committed
1615
#if T_TRACER
1616 1617 1618 1619 1620 1621 1622
	  if (after_rounds != -1) {
	    T(T_ENB_PHY_DLSCH_UE_NACK, T_INT(0), T_INT(frame), T_INT(subframe),
	      T_INT(dlsch0->rnti), T_INT(harq_pid));
	  } else {
	    T(T_ENB_PHY_DLSCH_UE_ACK, T_INT(0), T_INT(frame), T_INT(subframe),
	      T_INT(dlsch0->rnti), T_INT(harq_pid));
	  }
Cedric Roux's avatar
Cedric Roux committed
1623
#endif
1624
	  if (dlsch0_harq->round >= after_rounds) {
1625 1626
	    dlsch0_harq->status = SCH_IDLE;
	    if ((dlsch1_harq == NULL)||
1627 1628
		((dlsch1_harq!=NULL)&&
		 (dlsch1_harq->status == SCH_IDLE)))
1629
	      dlsch0->harq_mask   &= ~(1<<harq_pid);
1630
	  }
1631
	}
1632
	
1633
      }
1634
    }
1635
  } 
1636
}
1637

1638
static void release_harq(PHY_VARS_eNB *eNB,int UE_id,int tb,uint16_t frame,uint8_t subframe,uint16_t mask, int is_ack) {
1639 1640 1641 1642 1643 1644
  /* Maximum number of DL transmissions = 4.
   * TODO: get the value from configuration.
   * If is_ack is true then we release immediately. The value -1 can be used for that.
   */
  do_release_harq(eNB, UE_id, tb, frame, subframe, mask, is_ack ? -1 : 4);
}
Raymond Knopp's avatar
Raymond Knopp committed
1645

1646
int getM(PHY_VARS_eNB *eNB,int frame,int subframe) {
1647
  
1648 1649 1650 1651
  int M,Mtx=0;
  LTE_eNB_DLSCH_t *dlsch0=NULL,*dlsch1=NULL;
  LTE_DL_eNB_HARQ_t *dlsch0_harq=NULL,*dlsch1_harq=NULL;
  int harq_pid;
Wang Tsu-Han's avatar
Wang Tsu-Han committed
1652
  int subframe_tx,frame_tx;
1653
  int m;
1654
  
1655 1656 1657 1658 1659 1660 1661
  M=ul_ACK_subframe2_M(&eNB->frame_parms,
		       subframe);
  
  for (m=0; m<M; m++) {
    subframe_tx = ul_ACK_subframe2_dl_subframe(&eNB->frame_parms,
					       subframe,
					       m);
Wang Tsu-Han's avatar
Wang Tsu-Han committed
1662
    frame_tx =  ul_ACK_subframe2_dl_frame(&eNB->frame_parms,frame,
1663
					  subframe,subframe_tx);
Wang Tsu-Han's avatar
Wang Tsu-Han committed
1664
    harq_pid = dlsch0->harq_ids[frame_tx%2][subframe_tx];
1665
    
1666 1667 1668 1669 1670 1671
    if (harq_pid>=0 && harq_pid<10) {
      dlsch0_harq     = dlsch0->harq_processes[harq_pid];
      dlsch1_harq     = dlsch1->harq_processes[harq_pid];
      AssertFatal(dlsch0_harq!=NULL,"dlsch0_harq is null\n");
      if (dlsch0_harq->status == ACTIVE||
	  (dlsch1_harq!=NULL && dlsch1_harq->status == ACTIVE)) Mtx ++;
1672 1673
      >>>>>>> origin/develop
		}
1674
  }
Raymond Knopp's avatar
Raymond Knopp committed
1675
  return (Mtx);
1676
}
1677 1678


1679 1680
void fill_ulsch_cqi_indication (PHY_VARS_eNB * eNB, uint16_t frame, uint8_t subframe, LTE_UL_eNB_HARQ_t * ulsch_harq, uint16_t rnti) {
  
Raymond Knopp's avatar
Raymond Knopp committed
1681 1682
  pthread_mutex_lock (&eNB->UL_INFO_mutex);
  nfapi_cqi_indication_pdu_t *pdu = &eNB->UL_INFO.cqi_ind.cqi_pdu_list[eNB->UL_INFO.cqi_ind.number_of_cqis];
1683
  nfapi_cqi_indication_raw_pdu_t *raw_pdu = &eNB->UL_INFO.cqi_ind.cqi_raw_pdu_list[eNB->UL_INFO.cqi_ind.number_of_cqis];
1684
  
1685
  pdu->rx_ue_information.tl.tag          = NFAPI_RX_UE_INFORMATION_TAG;
1686
  pdu->rx_ue_information.rnti = rnti;
Raymond Knopp's avatar
Raymond Knopp committed
1687 1688 1689 1690
  if (ulsch_harq->cqi_crc_status != 1)
    pdu->cqi_indication_rel9.data_offset = 0;
  else
    pdu->cqi_indication_rel9.data_offset = 1;   // fill in after all cqi_indications have been generated when non-zero
1691
  
1692 1693
  // by default set O to rank 1 value

1694
  pdu->cqi_indication_rel9.tl.tag = NFAPI_CQI_INDICATION_REL9_TAG;
Cedric Roux's avatar
Cedric Roux committed
1695
  pdu->cqi_indication_rel9.length = (ulsch_harq->Or1>>3) + ((ulsch_harq->Or1&7) > 0 ? 1 : 0);
1696 1697
  pdu->cqi_indication_rel9.ri[0]  = 0;
  // if we have RI bits, set them and if rank2 overwrite O
Raymond Knopp's avatar
Raymond Knopp committed
1698
  if (ulsch_harq->O_RI > 0) {
1699
    pdu->cqi_indication_rel9.ri[0] = ulsch_harq->o_RI[0];
Raymond Knopp's avatar
Raymond Knopp committed
1700 1701
    if (ulsch_harq->o_RI[0] == 2)
      pdu->cqi_indication_rel9.length = (ulsch_harq->Or2 >> 3) + ((ulsch_harq->Or2 & 7) > 0 ? 1 : 0);
1702 1703
    pdu->cqi_indication_rel9.timing_advance = 0;
  }
1704
  
1705
  pdu->cqi_indication_rel9.number_of_cc_reported = 1;
Raymond Knopp's avatar
Raymond Knopp committed
1706 1707
  pdu->ul_cqi_information.channel = 1;  // PUSCH
  memcpy ((void *) raw_pdu->pdu, ulsch_harq->o, pdu->cqi_indication_rel9.length);
1708
  eNB->UL_INFO.cqi_ind.number_of_cqis++;
1709
  LOG_D(PHY,"eNB->UL_INFO.cqi_ind.number_of_cqis:%d\n", eNB->UL_INFO.cqi_ind.number_of_cqis);
1710
  
1711 1712
  pthread_mutex_unlock(&eNB->UL_INFO_mutex);

1713
}							}
1714

1715
void fill_ulsch_harq_indication (PHY_VARS_eNB * eNB, LTE_UL_eNB_HARQ_t * ulsch_harq, uint16_t rnti, int frame, int subframe, int bundling) {
1716

1717
  int UE_id = find_dlsch(rnti,eNB,SEARCH_EXIST);
Wang Tsu-Han's avatar
Wang Tsu-Han committed
1718 1719
  if( (UE_id<0) || (UE_id>=NUMBER_OF_UE_MAX) ){
    LOG_E(PHY,"illegal UE_id found!!! rnti %04x UE_id %d\n",rnti,UE_id);
1720
    return;
1721
  }
Wang Tsu-Han's avatar
Wang Tsu-Han committed
1722
  //AssertFatal(UE_id>=0,"UE_id doesn't exist\n");
1723
  
1724
  pthread_mutex_lock(&eNB->UL_INFO_mutex);
1725
  nfapi_harq_indication_pdu_t *pdu =   &eNB->UL_INFO.harq_ind.harq_indication_body.harq_pdu_list[eNB->UL_INFO.harq_ind.harq_indication_body.number_of_harqs];
1726 1727
  int M;
  int i;
1728
  
1729 1730
  eNB->UL_INFO.harq_ind.header.message_id = NFAPI_HARQ_INDICATION;
  eNB->UL_INFO.harq_ind.sfn_sf = frame<<4|subframe;
1731
  
1732
  eNB->UL_INFO.harq_ind.harq_indication_body.tl.tag = NFAPI_HARQ_INDICATION_BODY_TAG;
1733
  
1734 1735
  pdu->instance_length                                = 0; // don't know what to do with this
  //  pdu->rx_ue_information.handle                       = handle;
1736
  pdu->rx_ue_information.tl.tag                       = NFAPI_RX_UE_INFORMATION_TAG;
1737
  pdu->rx_ue_information.rnti                         = rnti;
1738 1739 1740 1741 1742 1743 1744 1745 1746 1747 1748 1749
  >>>>>>> origin/develop
	    
	    if (eNB->frame_parms.frame_type == FDD) {
	      pdu->harq_indication_fdd_rel13.tl.tag = NFAPI_HARQ_INDICATION_FDD_REL13_TAG;
	      pdu->harq_indication_fdd_rel13.mode = 0;
	      pdu->harq_indication_fdd_rel13.number_of_ack_nack = ulsch_harq->O_ACK;
	      
	      for (i = 0; i < ulsch_harq->O_ACK; i++) {
		AssertFatal (ulsch_harq->o_ACK[i] == 0 || ulsch_harq->o_ACK[i] == 1, "harq_ack[%d] is %d, should be 1,2 or 4\n", i, ulsch_harq->o_ACK[i]);
		
		pdu->harq_indication_fdd_rel13.harq_tb_n[i] = 2 - ulsch_harq->o_ACK[i];
		// release DLSCH if needed
1750

1751 1752 1753 1754 1755
		release_harq(eNB,UE_id,i,frame,subframe,0xffff, ulsch_harq->o_ACK[i] == 1);
		
	      }
	    } else {                      // TDD
	      M = ul_ACK_subframe2_M (&eNB->frame_parms, subframe);
1756

1757 1758 1759
	      pdu->harq_indication_tdd_rel13.tl.tag = NFAPI_HARQ_INDICATION_TDD_REL13_TAG;
	      pdu->harq_indication_tdd_rel13.mode = 1-bundling;
	      pdu->harq_indication_tdd_rel13.number_of_ack_nack = ulsch_harq->O_ACK;
Cedric Roux's avatar
Cedric Roux committed
1760

1761 1762 1763 1764 1765 1766 1767 1768 1769 1770 1771 1772 1773 1774 1775 1776 1777 1778 1779 1780 1781 1782
	      for (i = 0; i < ulsch_harq->O_ACK; i++) {
		AssertFatal (ulsch_harq->o_ACK[i] == 0 || ulsch_harq->o_ACK[i] == 1, "harq_ack[%d] is %d, should be 1,2 or 4\n", i, ulsch_harq->o_ACK[i]);
		
		pdu->harq_indication_tdd_rel13.harq_data[0].bundling.value_0 = 2-ulsch_harq->o_ACK[i];
		// release DLSCH if needed
		/* TODO: review this code, it's most certainly wrong.
		 * We have to release the proper HARQ in case of ACK or NACK if max retransmission reached.
		 * Basically, call release_harq with 1 as last argument when ACK and 0 when NACK.
		 */
		release_harq(eNB,UE_id,i,frame,subframe,0xffff, ulsch_harq->o_ACK[i] == 1);
		if      (M==1 && ulsch_harq->O_ACK==1 && ulsch_harq->o_ACK[i] == 1) release_harq(eNB,UE_id,0,frame,subframe,0xffff, ulsch_harq->o_ACK[i] == 1);
		else if (M==1 && ulsch_harq->O_ACK==2 && ulsch_harq->o_ACK[i] == 1) release_harq(eNB,UE_id,i,frame,subframe,0xffff, ulsch_harq->o_ACK[i] == 1);
		else if (M>1 && ulsch_harq->o_ACK[i] == 1) {
		  // spatial bundling
		  release_harq(eNB,UE_id,0,frame,subframe,1<<i, ulsch_harq->o_ACK[i] == 1);
		  release_harq(eNB,UE_id,1,frame,subframe,1<<i, ulsch_harq->o_ACK[i] == 1);
		}
	      }
	      //LOG_E(PHY,"eNB->UL_INFO.harq_ind.harq_indication_body.number_of_harqs:%d\n", eNB->UL_INFO.harq_ind.harq_indication_body.number_of_harqs);
	      eNB->UL_INFO.harq_ind.harq_indication_body.number_of_harqs++;
	      
	      pthread_mutex_unlock(&eNB->UL_INFO_mutex);
1783

1784
	    }
1785
}
1786

1787
void fill_uci_harq_indication (PHY_VARS_eNB * eNB, LTE_eNB_UCI * uci, int frame, int subframe, uint8_t * harq_ack, uint8_t tdd_mapping_mode, uint16_t tdd_multiplexing_mask) {
1788

Raymond Knopp's avatar
Raymond Knopp committed
1789
  int UE_id=find_dlsch(uci->rnti,eNB,SEARCH_EXIST);
1790 1791 1792 1793 1794
  //AssertFatal(UE_id>=0,"UE_id doesn't exist rnti:%x\n", uci->rnti);
  if (UE_id < 0) {
    LOG_E(PHY,"SFN/SF:%04d%d Unable to find rnti:%x do not send HARQ\n", frame, subframe, uci->rnti);
    return;
  }
1795
  
1796
  pthread_mutex_lock(&eNB->UL_INFO_mutex);
1797
  
1798 1799 1800
  nfapi_harq_indication_t *ind       = &eNB->UL_INFO.harq_ind;
  nfapi_harq_indication_body_t *body = &ind->harq_indication_body;
  nfapi_harq_indication_pdu_t *pdu   = &body->harq_pdu_list[eNB->UL_INFO.harq_ind.harq_indication_body.number_of_harqs];
1801
  
1802 1803
  ind->sfn_sf = frame<<4|subframe;
  ind->header.message_id = NFAPI_HARQ_INDICATION;
1804
  
1805
  body->tl.tag = NFAPI_HARQ_INDICATION_BODY_TAG;
1806
  
1807 1808
  pdu->instance_length                                = 0; // don't know what to do with this
  //  pdu->rx_ue_information.handle                       = handle;
1809
  pdu->rx_ue_information.tl.tag                       = NFAPI_RX_UE_INFORMATION_TAG;
1810
  pdu->rx_ue_information.rnti                         = uci->rnti;
1811
  
1812
  // estimate UL_CQI for MAC (from antenna port 0 only)
1813
  pdu->ul_cqi_information.tl.tag = NFAPI_UL_CQI_INFORMATION_TAG;
Wang Tsu-Han's avatar
Wang Tsu-Han committed
1814
  int SNRtimes10 = dB_fixed_times10(uci->stat) - 300;//(10*eNB->measurements.n0_power_dB[0]);
1815
	    
Raymond Knopp's avatar
Raymond Knopp committed
1816 1817
  if (SNRtimes10 < -100)
    LOG_I (PHY, "uci->stat %d \n", uci->stat);
1818
  
Raymond Knopp's avatar
Raymond Knopp committed
1819 1820 1821 1822 1823 1824
  if (SNRtimes10 < -640)
    pdu->ul_cqi_information.ul_cqi = 0;
  else if (SNRtimes10 > 635)
    pdu->ul_cqi_information.ul_cqi = 255;
  else
    pdu->ul_cqi_information.ul_cqi = (640 + SNRtimes10) / 5;
1825
  pdu->ul_cqi_information.channel = 0;
1826
  
1827 1828
  if (eNB->frame_parms.frame_type == FDD) {
    if (uci->pucch_fmt == pucch_format1a) {
1829
      pdu->harq_indication_fdd_rel13.tl.tag = NFAPI_HARQ_INDICATION_FDD_REL13_TAG;
1830 1831
      pdu->harq_indication_fdd_rel13.mode = 0;  
      pdu->harq_indication_fdd_rel13.number_of_ack_nack = 1;
1832
      
Raymond Knopp's avatar
Raymond Knopp committed
1833
      AssertFatal (harq_ack[0] == 1 || harq_ack[0] == 2 || harq_ack[0] == 4, "harq_ack[0] is %d, should be 1,2 or 4\n", harq_ack[0]);
1834 1835
      pdu->harq_indication_fdd_rel13.harq_tb_n[0] = harq_ack[0];
      // release DLSCH if needed
1836
      release_harq(eNB,UE_id,0,frame,subframe,0xffff, harq_ack[0] == 1);
1837 1838
    }
    else if (uci->pucch_fmt == pucch_format1b) {
1839
      pdu->harq_indication_fdd_rel13.tl.tag = NFAPI_HARQ_INDICATION_FDD_REL13_TAG;
1840 1841
      pdu->harq_indication_fdd_rel13.mode = 0;  
      pdu->harq_indication_fdd_rel13.number_of_ack_nack = 2;
Raymond Knopp's avatar
Raymond Knopp committed
1842 1843
      AssertFatal (harq_ack[0] == 1 || harq_ack[0] == 2 || harq_ack[1] == 4, "harq_ack[0] is %d, should be 0,1 or 4\n", harq_ack[0]);
      AssertFatal (harq_ack[1] == 1 || harq_ack[1] == 2 || harq_ack[1] == 4, "harq_ack[1] is %d, should be 0,1 or 4\n", harq_ack[1]);
1844
      pdu->harq_indication_fdd_rel13.harq_tb_n[0] = harq_ack[0];
Raymond Knopp's avatar
Raymond Knopp committed
1845
      pdu->harq_indication_fdd_rel13.harq_tb_n[1] = harq_ack[1];
1846
      // release DLSCH if needed
1847 1848
      release_harq(eNB,UE_id,0,frame,subframe,0xffff, harq_ack[0] == 1);
      release_harq(eNB,UE_id,1,frame,subframe,0xffff, harq_ack[1] == 1);
1849 1850 1851 1852
    }
    else AssertFatal(1==0,"only format 1a/b for now, received %d\n",uci->pucch_fmt); 
  }
  else { // TDD
Raymond Knopp's avatar
Raymond Knopp committed
1853
    AssertFatal (tdd_mapping_mode == 0 || tdd_mapping_mode == 1 || tdd_mapping_mode == 2, "Illegal tdd_mapping_mode %d\n", tdd_mapping_mode);
1854
    pdu->harq_indication_tdd_rel13.tl.tag = NFAPI_HARQ_INDICATION_TDD_REL13_TAG;
1855
    pdu->harq_indication_tdd_rel13.mode = tdd_mapping_mode;  
Wang Tsu-Han's avatar
Wang Tsu-Han committed
1856
    LOG_D(PHY,"%s(eNB, uci_harq format %d, rnti:%04x, frame:%d, subframe:%d, tdd_mapping_mode:%d) harq_ack[0]:%d harq_ack[1]:%d\n", __FUNCTION__, uci->pucch_fmt,uci->rnti, frame, subframe, tdd_mapping_mode,harq_ack[0],harq_ack[1]);
1857
    switch (tdd_mapping_mode) {
Raymond Knopp's avatar
Raymond Knopp committed
1858
    case 0:                    // bundling
1859
      
1860
      if (uci->pucch_fmt == pucch_format1a) {
1861
	pdu->harq_indication_tdd_rel13.tl.tag = NFAPI_HARQ_INDICATION_TDD_REL13_TAG;
1862
	pdu->harq_indication_tdd_rel13.number_of_ack_nack = 1;	
Wang Tsu-Han's avatar
Wang Tsu-Han committed
1863
	LOG_D(PHY,"bundling, pucch1a, number of ack nack %d\n",pdu->harq_indication_tdd_rel13.number_of_ack_nack);
1864 1865 1866
	AssertFatal(harq_ack[0] == 1 || harq_ack[0] == 2 || harq_ack[0] == 4, "harq_ack[0] is %d, should be 1,2 or 4\n",harq_ack[0]);
	pdu->harq_indication_tdd_rel13.harq_data[0].bundling.value_0 = harq_ack[0];
	// release all bundled DLSCH if needed
1867
	release_harq(eNB,UE_id,0,frame,subframe,0xffff, harq_ack[0] == 1);
1868 1869 1870 1871 1872
      }
      else if (uci->pucch_fmt == pucch_format1b) {
	pdu->harq_indication_tdd_rel13.number_of_ack_nack = 2;
	AssertFatal(harq_ack[0] == 1 || harq_ack[0] == 2 || harq_ack[1] == 4, "harq_ack[0] is %d, should be 0,1 or 4\n",harq_ack[0]);
	AssertFatal(harq_ack[1] == 1 || harq_ack[1] == 2 || harq_ack[1] == 4, "harq_ack[1] is %d, should be 0,1 or 4\n",harq_ack[1]);
1873
	pdu->harq_indication_tdd_rel13.tl.tag = NFAPI_HARQ_INDICATION_TDD_REL13_TAG;
1874 1875 1876
	pdu->harq_indication_tdd_rel13.harq_data[0].bundling.value_0 = harq_ack[0];
	pdu->harq_indication_tdd_rel13.harq_data[1].bundling.value_0 = harq_ack[1]; 
	// release all DLSCH if needed
1877 1878
	release_harq(eNB,UE_id,0,frame,subframe,0xffff, harq_ack[0] == 1);
	release_harq(eNB,UE_id,1,frame,subframe,0xffff, harq_ack[1] == 1);
1879 1880
      }
      break;
Raymond Knopp's avatar
Raymond Knopp committed
1881 1882
    case 1:                    // multiplexing
      AssertFatal (uci->pucch_fmt == pucch_format1b, "uci->pucch_format %d is not format1b\n", uci->pucch_fmt);
1883
      
1884
      if (uci->num_pucch_resources == 1 && uci->pucch_fmt == pucch_format1a) {
1885
	pdu->harq_indication_tdd_rel13.tl.tag = NFAPI_HARQ_INDICATION_TDD_REL13_TAG;
1886 1887 1888 1889
	pdu->harq_indication_tdd_rel13.number_of_ack_nack = 1;	
	AssertFatal(harq_ack[0] == 1 || harq_ack[0] == 2 || harq_ack[0] == 4, "harq_ack[0] is %d, should be 1,2 or 4\n",harq_ack[0]);
	pdu->harq_indication_tdd_rel13.harq_data[0].multiplex.value_0 = harq_ack[0];
	// release all DLSCH if needed
1890
	release_harq(eNB,UE_id,0,frame,subframe,0xffff, harq_ack[0] == 1);
1891
      }
1892
      else if (uci->num_pucch_resources == 1 && uci->pucch_fmt == pucch_format1b) {
1893
	pdu->harq_indication_tdd_rel13.tl.tag = NFAPI_HARQ_INDICATION_TDD_REL13_TAG;
1894 1895 1896 1897 1898 1899
	pdu->harq_indication_tdd_rel13.number_of_ack_nack = 2;
	AssertFatal(harq_ack[0] == 1 || harq_ack[0] == 2 || harq_ack[1] == 4, "harq_ack[0] is %d, should be 0,1 or 4\n",harq_ack[0]);
	AssertFatal(harq_ack[1] == 1 || harq_ack[1] == 2 || harq_ack[1] == 4, "harq_ack[1] is %d, should be 0,1 or 4\n",harq_ack[1]);
	pdu->harq_indication_tdd_rel13.harq_data[0].multiplex.value_0 = harq_ack[0];
	pdu->harq_indication_tdd_rel13.harq_data[1].multiplex.value_0 = harq_ack[1]; 
	// release all DLSCH if needed
1900 1901
	release_harq(eNB,UE_id,0,frame,subframe,0xffff, harq_ack[0] == 1);
	release_harq(eNB,UE_id,1,frame,subframe,0xffff, harq_ack[1] == 1);
1902 1903
      }
      else { // num_pucch_resources (M) > 1
1904
	pdu->harq_indication_tdd_rel13.tl.tag = NFAPI_HARQ_INDICATION_TDD_REL13_TAG;
1905
	pdu->harq_indication_tdd_rel13.number_of_ack_nack = uci->num_pucch_resources;
1906
	
1907 1908 1909 1910 1911
	pdu->harq_indication_tdd_rel13.harq_data[0].multiplex.value_0 = harq_ack[0];
	pdu->harq_indication_tdd_rel13.harq_data[1].multiplex.value_0 = harq_ack[1];
	if (uci->num_pucch_resources == 3) 	pdu->harq_indication_tdd_rel13.harq_data[2].multiplex.value_0 = harq_ack[2];
	if (uci->num_pucch_resources == 4) 	pdu->harq_indication_tdd_rel13.harq_data[3].multiplex.value_0 = harq_ack[3];
	// spatial-bundling in this case so release both HARQ if necessary
1912 1913
	release_harq(eNB,UE_id,0,frame,subframe,tdd_multiplexing_mask, 1 /* force release? previous code was unconditional */);
	release_harq(eNB,UE_id,1,frame,subframe,tdd_multiplexing_mask, 1 /* force release? previous code was unconditional */);
1914 1915 1916
      }
      break;
    case 2: // special bundling (SR collision)
1917
      pdu->harq_indication_tdd_rel13.tl.tag = NFAPI_HARQ_INDICATION_TDD_REL13_TAG;
1918
      pdu->harq_indication_tdd_rel13.number_of_ack_nack = 1;
Wang Tsu-Han's avatar
Wang Tsu-Han committed
1919
      pdu->harq_indication_tdd_rel13.mode = 0;
1920 1921
      int tdd_config5_sf2scheds=0;
      if (eNB->frame_parms.tdd_config==5) tdd_config5_sf2scheds = getM(eNB,frame,subframe);
1922
      
1923 1924
      switch (harq_ack[0]) {
      case 0:
Wang Tsu-Han's avatar
Wang Tsu-Han committed
1925
      case 4:
1926 1927
	pdu->harq_indication_tdd_rel13.harq_data[0].bundling.value_0 = 0;
	/* TODO: release_harq here? this whole code looks suspicious */
1928 1929 1930 1931
	break;
      case 1: // check if M=1,4,7
	if (uci->num_pucch_resources == 1 || uci->num_pucch_resources == 4 ||
	    tdd_config5_sf2scheds == 1 || tdd_config5_sf2scheds == 4 || tdd_config5_sf2scheds == 7) {
1932
	  pdu->harq_indication_tdd_rel13.harq_data[0].bundling.value_0 = 1;
1933 1934
	  release_harq(eNB,UE_id,0,frame,subframe,0xffff, 1);
	  release_harq(eNB,UE_id,1,frame,subframe,0xffff, 1);
Wang Tsu-Han's avatar
Wang Tsu-Han committed
1935
	}else{
1936
	  pdu->harq_indication_tdd_rel13.harq_data[0].bundling.value_0 = 0;
1937
	}
1938 1939 1940 1941
	break;
      case 2: // check if M=2,5,8
	if (uci->num_pucch_resources == 2 || tdd_config5_sf2scheds == 2 || 
	    tdd_config5_sf2scheds == 5 || tdd_config5_sf2scheds == 8) {
1942
	  pdu->harq_indication_tdd_rel13.harq_data[0].bundling.value_0 = 1;
1943 1944
	  release_harq(eNB,UE_id,0,frame,subframe,0xffff, 1);
	  release_harq(eNB,UE_id,1,frame,subframe,0xffff, 1);
Wang Tsu-Han's avatar
Wang Tsu-Han committed
1945
	}else{
1946
	  pdu->harq_indication_tdd_rel13.harq_data[0].bundling.value_0 = 0;
1947 1948 1949 1950 1951
	}
	break;
      case 3: // check if M=3,6,9
	if (uci->num_pucch_resources == 3 || tdd_config5_sf2scheds == 3 || 
	    tdd_config5_sf2scheds == 6 || tdd_config5_sf2scheds == 9) {
1952
	  pdu->harq_indication_tdd_rel13.harq_data[0].bundling.value_0 = 1;
1953 1954
	  release_harq(eNB,UE_id,0,frame,subframe,0xffff, 1);
	  release_harq(eNB,UE_id,1,frame,subframe,0xffff, 1);
Wang Tsu-Han's avatar
Wang Tsu-Han committed
1955
	}else{
1956
	  pdu->harq_indication_tdd_rel13.harq_data[0].bundling.value_0 = 0;
1957 1958 1959 1960
	}
	break;
      }
      break;
1961
      
1962
    }
Raymond Knopp's avatar
Raymond Knopp committed
1963
  }                             //TDD
1964 1965
  
  
1966 1967
  eNB->UL_INFO.harq_ind.harq_indication_body.number_of_harqs++;
  LOG_D(PHY,"Incremented eNB->UL_INFO.harq_ind.harq_indication_body.number_of_harqs:%d\n", eNB->UL_INFO.harq_ind.harq_indication_body.number_of_harqs);
1968 1969
  pthread_mutex_unlock(&eNB->UL_INFO_mutex);  
}
1970

1971
void fill_crc_indication (PHY_VARS_eNB * eNB, int UE_id, int frame, int subframe, uint8_t crc_flag) {
1972

1973
  pthread_mutex_lock(&eNB->UL_INFO_mutex);
1974
  nfapi_crc_indication_pdu_t *pdu =   &eNB->UL_INFO.crc_ind.crc_indication_body.crc_pdu_list[eNB->UL_INFO.crc_ind.crc_indication_body.number_of_crcs];
1975
  
1976 1977 1978
  eNB->UL_INFO.crc_ind.sfn_sf                         = frame<<4 | subframe;
  eNB->UL_INFO.crc_ind.header.message_id              = NFAPI_CRC_INDICATION;
  eNB->UL_INFO.crc_ind.crc_indication_body.tl.tag     = NFAPI_CRC_INDICATION_BODY_TAG;
1979

Raymond Knopp's avatar
Raymond Knopp committed
1980
  pdu->instance_length = 0;     // don't know what to do with this
1981
  //  pdu->rx_ue_information.handle                       = handle;
1982

1983
  pdu->rx_ue_information.tl.tag                       = NFAPI_RX_UE_INFORMATION_TAG;
1984
  pdu->rx_ue_information.rnti                         = eNB->ulsch[UE_id]->rnti;
Cedric Roux's avatar
Cedric Roux committed
1985
  pdu->crc_indication_rel8.tl.tag                     = NFAPI_CRC_INDICATION_REL8_TAG;
1986
  pdu->crc_indication_rel8.crc_flag                   = crc_flag;
1987
  
1988
  eNB->UL_INFO.crc_ind.crc_indication_body.number_of_crcs++;
1989
  
1990
  //LOG_D(PHY, "%s() rnti:%04x crcs:%d crc_flag:%d\n", __FUNCTION__, pdu->rx_ue_information.rnti, eNB->UL_INFO.crc_ind.crc_indication_body.number_of_crcs, crc_flag);
1991
  
1992 1993
  pthread_mutex_unlock(&eNB->UL_INFO_mutex);
}
1994

1995
void phy_procedures_eNB_uespec_RX(PHY_VARS_eNB *eNB,eNB_rxtx_proc_t *proc) {
1996
  //RX processing for ue-specific resources (i
Raymond Knopp's avatar
Raymond Knopp committed
1997 1998 1999
  LTE_DL_FRAME_PARMS *fp = &eNB->frame_parms;
  const int       subframe = proc->subframe_rx;
  const int       frame = proc->frame_rx;
2000
  
Cedric Roux's avatar
Cedric Roux committed
2001
  /* TODO: use correct rxdata */
Raymond Knopp's avatar
Raymond Knopp committed
2002 2003
  T (T_ENB_PHY_INPUT_SIGNAL, T_INT (eNB->Mod_id), T_INT (frame), T_INT (subframe), T_INT (0),
     T_BUFFER (&eNB->RU_list[0]->common.rxdata[0][subframe * eNB->frame_parms.samples_per_tti], eNB->frame_parms.samples_per_tti * 4));
2004
  
Cedric Roux's avatar
Cedric Roux committed
2005
  if ((fp->frame_type == TDD) && (subframe_select(fp,subframe)!=SF_UL)) return;
2006
  
Cedric Roux's avatar
Cedric Roux committed
2007
  T(T_ENB_PHY_UL_TICK, T_INT(eNB->Mod_id), T_INT(frame), T_INT(subframe));
2008
  
2009
  VCD_SIGNAL_DUMPER_DUMP_FUNCTION_BY_NAME( VCD_SIGNAL_DUMPER_FUNCTIONS_PHY_PROCEDURES_ENB_RX_UESPEC, 1 );
2010

Raymond Knopp's avatar
Raymond Knopp committed
2011
  LOG_D (PHY, "[eNB %d] Frame %d: Doing phy_procedures_eNB_uespec_RX(%d)\n", eNB->Mod_id, frame, subframe);
2012
  
Raymond Knopp's avatar
Raymond Knopp committed
2013 2014 2015 2016
  eNB->rb_mask_ul[0] = 0;
  eNB->rb_mask_ul[1] = 0;
  eNB->rb_mask_ul[2] = 0;
  eNB->rb_mask_ul[3] = 0;
2017
  
Raymond Knopp's avatar
Raymond Knopp committed
2018
  // Fix me here, these should be locked
Cedric Roux's avatar
Cedric Roux committed
2019 2020
  eNB->UL_INFO.rx_ind.rx_indication_body.number_of_pdus  = 0;
  eNB->UL_INFO.crc_ind.crc_indication_body.number_of_crcs = 0;
Raymond Knopp's avatar
Raymond Knopp committed
2021
  // Call SRS first since all others depend on presence of SRS or lack thereof
Raymond Knopp's avatar
Raymond Knopp committed
2022
  srs_procedures (eNB, proc);
2023
  
2024
  eNB->first_run_I0_measurements = 0;
2025
  
Raymond Knopp's avatar
Raymond Knopp committed
2026
  uci_procedures (eNB, proc);
2027
  
2028 2029 2030
  if (nfapi_mode == 0 || nfapi_mode == 1) { // If PNF or monolithic
    pusch_procedures(eNB,proc);
  }
2031

Raymond Knopp's avatar
Raymond Knopp committed
2032
  lte_eNB_I0_measurements (eNB, subframe, 0, eNB->first_run_I0_measurements);
2033

2034
  int min_I0=1000,max_I0=0;
2035
  if ((frame==0) && (subframe==4)) { 
2036 2037
    for (int i=0;i<eNB->frame_parms.N_RB_UL;i++) {
      if (i==(eNB->frame_parms.N_RB_UL>>1) - 1) i+=2;
2038
      
2039 2040
      if (eNB->measurements.n0_subband_power_tot_dB[i]<min_I0) min_I0 = eNB->measurements.n0_subband_power_tot_dB[i];
      if (eNB->measurements.n0_subband_power_tot_dB[i]>max_I0) max_I0 = eNB->measurements.n0_subband_power_tot_dB[i];
2041
      
2042
    }
Raymond Knopp's avatar
Raymond Knopp committed
2043
    LOG_I (PHY, "max_I0 %d, min_I0 %d\n", max_I0, min_I0);
2044
  }
2045
  VCD_SIGNAL_DUMPER_DUMP_FUNCTION_BY_NAME( VCD_SIGNAL_DUMPER_FUNCTIONS_PHY_PROCEDURES_ENB_RX_UESPEC, 0 );
Raymond Knopp's avatar
Raymond Knopp committed
2046
}