dlsch_demodulation.c 178 KB
Newer Older
1
/*******************************************************************************
2
    OpenAirInterface
ghaddab's avatar
ghaddab committed
3
    Copyright(c) 1999 - 2014 Eurecom
4

ghaddab's avatar
ghaddab committed
5 6 7 8
    OpenAirInterface is free software: you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
    the Free Software Foundation, either version 3 of the License, or
    (at your option) any later version.
9 10


ghaddab's avatar
ghaddab committed
11 12 13 14
    OpenAirInterface is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    GNU General Public License for more details.
15

ghaddab's avatar
ghaddab committed
16
    You should have received a copy of the GNU General Public License
17 18
    along with OpenAirInterface.The full GNU General Public License is
   included in this distribution in the file called "COPYING". If not,
ghaddab's avatar
ghaddab committed
19
   see <http://www.gnu.org/licenses/>.
20 21

  Contact Information
ghaddab's avatar
ghaddab committed
22 23
  OpenAirInterface Admin: openair_admin@eurecom.fr
  OpenAirInterface Tech : openair_tech@eurecom.fr
24
  OpenAirInterface Dev  : openair4g-devel@lists.eurecom.fr
25

ghaddab's avatar
ghaddab committed
26
  Address      : Eurecom, Campus SophiaTech, 450 Route des Chappes, CS 50193 - 06904 Biot Sophia Antipolis cedex, FRANCE
27

28
*******************************************************************************/
29 30 31 32 33

/*! \file PHY/LTE_TRANSPORT/dlsch_demodulation.c
 * \brief Top-level routines for demodulating the PDSCH physical channel from 36-211, V8.6 2009-03
 * \author R. Knopp, F. Kaltenberger,A. Bhamri, S. Aubert
 * \date 2011
34
 * \version 0.1
35 36 37 38 39 40 41 42 43 44
 * \company Eurecom
 * \email: knopp@eurecom.fr,florian.kaltenberger@eurecom.fr,ankit.bhamri@eurecom.fr,sebastien.aubert@eurecom.fr
 * \note
 * \warning
 */

#include "PHY/defs.h"
#include "PHY/extern.h"
#include "defs.h"
#include "extern.h"
45
#include "PHY/sse_intrin.h"
46 47 48 49 50


#ifndef USER_MODE
#define NOCYGWIN_STATIC static
#else
51
#define NOCYGWIN_STATIC
52 53
#endif

Elena Lukashova's avatar
Elena Lukashova committed
54 55 56
//#undef LOG_D
//#define LOG_D LOG_I

57
//#define DEBUG_PHY 1
58
//#define DEBUG_DLSCH_DEMOD 1
59

knopp's avatar
knopp committed
60
int avg[4]; 
61 62

// [MCS][i_mod (0,1,2) = (2,4,6)]
63
unsigned char offset_mumimo_llr_drange_fix=0;
Elena Lukashova's avatar
Elena Lukashova committed
64 65 66
uint8_t interf_unaw_shift0=0;
uint8_t interf_unaw_shift1=0;
uint8_t interf_unaw_shift=0;
67 68 69 70
//inferference-free case
unsigned char interf_unaw_shift_mcs[29]={5, 3, 4, 3, 3, 2, 1, 1, 2, 0, 1, 1, 1, 1, 0, 0, 
					 1, 1, 1, 1, 0, 2, 1, 0, 1, 0, 1, 0, 0} ;

71 72 73
/*
//original values from sebastion + same hand tuning
unsigned char offset_mumimo_llr_drange[29][3]={{8,8,8},{7,7,7},{7,7,7},{7,7,7},{6,6,6},{6,6,6},{6,6,6},{5,5,5},{4,4,4},{1,2,4}, // QPSK
74 75
{5,5,4},{5,5,5},{5,5,5},{3,3,3},{2,2,2},{2,2,2},{2,2,2}, // 16-QAM
{2,2,1},{3,3,3},{3,3,3},{3,3,1},{2,2,2},{2,2,2},{0,0,0},{0,0,0},{0,0,0},{0,0,0},{0,0,0},{0,0,0}}; //64-QAM
76
*/
77 78 79 80 81 82 83 84
 /*
 //first optimization try
 unsigned char offset_mumimo_llr_drange[29][3]={{7, 8, 7},{6, 6, 7},{6, 6, 7},{6, 6, 6},{5, 6, 6},{5, 5, 6},{5, 5, 6},{4, 5, 4},{4, 3, 4},{3, 2, 2},{6, 5, 5},{5, 4, 4},{5, 5, 4},{3, 3, 2},{2, 2, 1},{2, 1, 1},{2, 2, 2},{3, 3, 3},{3, 3, 2},{3, 3, 2},{3, 2, 1},{2, 2, 2},{2, 2, 2},{0, 0, 0},{0, 0, 0},{0, 0, 0},{0, 0, 0},{0, 0, 0}};
 */
 //second optimization try
 /*
   unsigned char offset_mumimo_llr_drange[29][3]={{5, 8, 7},{4, 6, 8},{3, 6, 7},{7, 7, 6},{4, 7, 8},{4, 7, 4},{6, 6, 6},{3, 6, 6},{3, 6, 6},{1, 3, 4},{1, 1, 0},{3, 3, 2},{3, 4, 1},{4, 0, 1},{4, 2, 2},{3, 1, 2},{2, 1, 0},{2, 1, 1},{1, 0, 1},{1, 0, 1},{0, 0, 0},{1, 0, 0},{0, 0, 0},{0, 1, 0},{1, 0, 0},{0, 0, 0},{0, 0, 0},{0, 0, 0},{0, 0, 0}};  w
 */
85
unsigned char offset_mumimo_llr_drange[29][3]= {{0, 6, 5},{0, 4, 5},{0, 4, 5},{0, 5, 4},{0, 5, 6},{0, 5, 3},{0, 4, 4},{0, 4, 4},{0, 3, 3},{0, 1, 2},{1, 1, 0},{1, 3, 2},{3, 4, 1},{2, 0, 0},{2, 2, 2},{1, 1, 1},{2, 1, 0},{2, 1, 1},{1, 0, 1},{1, 0, 1},{0, 0, 0},{1, 0, 0},{0, 0, 0},{0, 1, 0},{1, 0, 0},{0, 0, 0},{0, 0, 0},{0, 0, 0},{0, 0, 0}};
86 87


88
extern void print_shorts(char *s,int16_t *x);
89

90

91 92 93 94
int rx_pdsch(PHY_VARS_UE *phy_vars_ue,
             PDSCH_t type,
             unsigned char eNB_id,
             unsigned char eNB_id_i, //if this == phy_vars_ue->n_connected_eNB, we assume MU interference
gauthier's avatar
gauthier committed
95
             uint8_t subframe,
96 97
             unsigned char symbol,
             unsigned char first_symbol_flag,
98
             RX_type_t rx_type,
99
             unsigned char i_mod,
100 101 102
             unsigned char harq_pid)
{

103 104 105 106 107 108
  LTE_UE_COMMON *lte_ue_common_vars  = &phy_vars_ue->lte_ue_common_vars;
  LTE_UE_PDSCH **lte_ue_pdsch_vars;
  LTE_DL_FRAME_PARMS *frame_parms    = &phy_vars_ue->lte_frame_parms;
  PHY_MEASUREMENTS *phy_measurements = &phy_vars_ue->PHY_measurements;
  LTE_UE_DLSCH_t   **dlsch_ue;

Elena Lukashova's avatar
Elena Lukashova committed
109

110
  unsigned char aatx,aarx;    
111
  unsigned short nb_rb, round;
112
  int avgs, rb;  
Elena Lukashova's avatar
Elena Lukashova committed
113 114

 LTE_DL_UE_HARQ_t *dlsch0_harq,*dlsch1_harq = 0;
115
  uint32_t *rballoc;
116

117 118 119
  int32_t **rxdataF_comp_ptr;
  int32_t **dl_ch_mag_ptr;

Elena Lukashova's avatar
Elena Lukashova committed
120 121
  
  
122 123 124 125
  switch (type) {
  case SI_PDSCH:
    lte_ue_pdsch_vars = &phy_vars_ue->lte_ue_pdsch_vars_SI[eNB_id];
    dlsch_ue          = &phy_vars_ue->dlsch_ue_SI[eNB_id];
126
    dlsch0_harq       = dlsch_ue[0]->harq_processes[harq_pid];
127
    break;
128

129 130 131
  case RA_PDSCH:
    lte_ue_pdsch_vars = &phy_vars_ue->lte_ue_pdsch_vars_ra[eNB_id];
    dlsch_ue          = &phy_vars_ue->dlsch_ue_ra[eNB_id];
132
    dlsch0_harq       = dlsch_ue[0]->harq_processes[harq_pid];
133
    break;
134

135 136 137
  case PDSCH:
    lte_ue_pdsch_vars = &phy_vars_ue->lte_ue_pdsch_vars[eNB_id];
    dlsch_ue          = phy_vars_ue->dlsch_ue[eNB_id];
138 139
    dlsch0_harq       = dlsch_ue[0]->harq_processes[harq_pid];
    dlsch1_harq       = dlsch_ue[1]->harq_processes[harq_pid];
140 141 142
    break;

  default:
143
    LOG_E(PHY,"[UE %d][FATAL] Frame %d subframe %d: Unknown PDSCH format %d\n",phy_vars_ue->frame_rx,subframe,type);
144 145 146
    return(-1);
    break;
  }
147

148 149
  DevAssert(dlsch0_harq);
  round = dlsch0_harq->round;
150

151
  if (eNB_id > 2) {
jiangx's avatar
jiangx committed
152
    LOG_W(PHY,"dlsch_demodulation.c: Illegal eNB_id %d\n",eNB_id);
153 154
    return(-1);
  }
155

156
  if (!lte_ue_common_vars) {
jiangx's avatar
jiangx committed
157
    LOG_W(PHY,"dlsch_demodulation.c: Null lte_ue_common_vars\n");
158 159 160 161
    return(-1);
  }

  if (!dlsch_ue[0]) {
jiangx's avatar
jiangx committed
162
    LOG_W(PHY,"dlsch_demodulation.c: Null dlsch_ue pointer\n");
163 164 165 166
    return(-1);
  }

  if (!lte_ue_pdsch_vars) {
jiangx's avatar
jiangx committed
167
    LOG_W(PHY,"dlsch_demodulation.c: Null lte_ue_pdsch_vars pointer\n");
168 169
    return(-1);
  }
170

171
  if (!frame_parms) {
jiangx's avatar
jiangx committed
172
    LOG_W(PHY,"dlsch_demodulation.c: Null lte_frame_parms\n");
173 174
    return(-1);
  }
175 176 177 178 179 180
  
  if (((frame_parms->Ncp == NORMAL) && (symbol>=7)) ||
      ((frame_parms->Ncp == EXTENDED) && (symbol>=6)))
    rballoc = dlsch0_harq->rb_alloc_odd;
  else
    rballoc = dlsch0_harq->rb_alloc_even;
181

Elena Lukashova's avatar
Elena Lukashova committed
182
  if (dlsch0_harq->mimo_mode>DUALSTREAM_PUSCH_PRECODING) {
183 184 185
    LOG_E(PHY,"This transmission mode is not yet supported!\n");
    return(-1);
  }
Elena Lukashova's avatar
Elena Lukashova committed
186 187 188
  
  
  
189 190 191 192 193 194 195 196 197 198
  if ((dlsch0_harq->mimo_mode==LARGE_CDD) || ((dlsch0_harq->mimo_mode>=DUALSTREAM_UNIFORM_PRECODING1) && (dlsch0_harq->mimo_mode<=DUALSTREAM_PUSCH_PRECODING)))  {
    DevAssert(dlsch1_harq);
    if (eNB_id!=eNB_id_i) {
      LOG_E(PHY,"TM3/TM4 requires to set eNB_id==eNB_id_i!\n");
      return(-1);
    }
  }

  //printf("rx_pdsch: harq_pid=%d, round=%d\n",harq_pid,round);

199 200
  if (frame_parms->nb_antennas_tx_eNB>1) {
    nb_rb = dlsch_extract_rbs_dual(lte_ue_common_vars->rxdataF,
201 202 203 204 205
                                   lte_ue_common_vars->dl_ch_estimates[eNB_id],
                                   lte_ue_pdsch_vars[eNB_id]->rxdataF_ext,
                                   lte_ue_pdsch_vars[eNB_id]->dl_ch_estimates_ext,
                                   dlsch0_harq->pmi_alloc,
                                   lte_ue_pdsch_vars[eNB_id]->pmi_ext,
206
                                   rballoc,
207 208 209
                                   symbol,
                                   subframe,
                                   phy_vars_ue->high_speed_flag,
Elena Lukashova's avatar
Elena Lukashova committed
210 211
                                   frame_parms,
				   dlsch0_harq->mimo_mode);
212
//#ifdef DEBUG_DLSCH_MOD
213 214 215 216
    /*   printf("dlsch: using pmi %lx, rb_alloc %x, pmi_ext ",pmi2hex_2Ar1(dlsch0_harq->pmi_alloc),*rballoc);
       for (rb=0;rb<nb_rb;rb++)
	  printf("%d",lte_ue_pdsch_vars[eNB_id]->pmi_ext[rb]);
       printf("\n");*/
217
//#endif
218

Elena Lukashova's avatar
Elena Lukashova committed
219
   if (rx_type==rx_IC_single_stream) {
220
      if (eNB_id_i<phy_vars_ue->n_connected_eNB) // we are in TM5
Elena Lukashova's avatar
Elena Lukashova committed
221
       nb_rb = dlsch_extract_rbs_dual(lte_ue_common_vars->rxdataF,
222 223 224 225 226
                                       lte_ue_common_vars->dl_ch_estimates[eNB_id_i],
                                       lte_ue_pdsch_vars[eNB_id_i]->rxdataF_ext,
                                       lte_ue_pdsch_vars[eNB_id_i]->dl_ch_estimates_ext,
                                       dlsch0_harq->pmi_alloc,
                                       lte_ue_pdsch_vars[eNB_id_i]->pmi_ext,
227
                                       rballoc,
228 229 230
                                       symbol,
                                       subframe,
                                       phy_vars_ue->high_speed_flag,
Elena Lukashova's avatar
Elena Lukashova committed
231 232
                                       frame_parms,
				       dlsch0_harq->mimo_mode);
Elena Lukashova's avatar
Elena Lukashova committed
233 234
     else 
       nb_rb = dlsch_extract_rbs_dual(lte_ue_common_vars->rxdataF,
235 236 237 238 239
                                       lte_ue_common_vars->dl_ch_estimates[eNB_id],
                                       lte_ue_pdsch_vars[eNB_id_i]->rxdataF_ext,
                                       lte_ue_pdsch_vars[eNB_id_i]->dl_ch_estimates_ext,
                                       dlsch0_harq->pmi_alloc,
                                       lte_ue_pdsch_vars[eNB_id_i]->pmi_ext,
240
                                       rballoc,
241 242 243
                                       symbol,
                                       subframe,
                                       phy_vars_ue->high_speed_flag,
Elena Lukashova's avatar
Elena Lukashova committed
244 245
                                       frame_parms,
				       dlsch0_harq->mimo_mode);
246 247
    }
  } // if n_tx>1
248
  else {
249
    nb_rb = dlsch_extract_rbs_single(lte_ue_common_vars->rxdataF,
250 251 252 253 254
                                     lte_ue_common_vars->dl_ch_estimates[eNB_id],
                                     lte_ue_pdsch_vars[eNB_id]->rxdataF_ext,
                                     lte_ue_pdsch_vars[eNB_id]->dl_ch_estimates_ext,
                                     dlsch0_harq->pmi_alloc,
                                     lte_ue_pdsch_vars[eNB_id]->pmi_ext,
255
                                     rballoc,
256 257 258 259
                                     symbol,
                                     subframe,
                                     phy_vars_ue->high_speed_flag,
                                     frame_parms);
Elena Lukashova's avatar
Elena Lukashova committed
260 261
   if (rx_type==rx_IC_single_stream) {
     if (eNB_id_i<phy_vars_ue->n_connected_eNB)
262 263 264 265 266 267
        nb_rb = dlsch_extract_rbs_single(lte_ue_common_vars->rxdataF,
                                         lte_ue_common_vars->dl_ch_estimates[eNB_id_i],
                                         lte_ue_pdsch_vars[eNB_id_i]->rxdataF_ext,
                                         lte_ue_pdsch_vars[eNB_id_i]->dl_ch_estimates_ext,    
                                         dlsch0_harq->pmi_alloc,
                                         lte_ue_pdsch_vars[eNB_id_i]->pmi_ext,
268
                                         rballoc,
269 270 271 272
                                         symbol,
                                         subframe,
                                         phy_vars_ue->high_speed_flag,
                                         frame_parms);
Elena Lukashova's avatar
Elena Lukashova committed
273

274
      else 
275 276 277 278 279 280
        nb_rb = dlsch_extract_rbs_single(lte_ue_common_vars->rxdataF,
                                         lte_ue_common_vars->dl_ch_estimates[eNB_id],
                                         lte_ue_pdsch_vars[eNB_id_i]->rxdataF_ext,
                                         lte_ue_pdsch_vars[eNB_id_i]->dl_ch_estimates_ext,    
                                         dlsch0_harq->pmi_alloc,
                                         lte_ue_pdsch_vars[eNB_id_i]->pmi_ext,
281
                                         rballoc,
282 283 284 285
                                         symbol,
                                         subframe,
                                         phy_vars_ue->high_speed_flag,
                                         frame_parms);
286 287
    }
  } //else n_tx>1
288 289

  //  printf("nb_rb = %d, eNB_id %d\n",nb_rb,eNB_id);
290
  if (nb_rb==0) {
291
    LOG_D(PHY,"dlsch_demodulation.c: nb_rb=0\n");
292 293
    return(-1);
  }
294

knopp's avatar
 
knopp committed
295
  /*
296 297
  // DL power control: Scaling of Channel estimates for PDSCH
  dlsch_scale_channel(lte_ue_pdsch_vars[eNB_id]->dl_ch_estimates_ext,
298 299 300 301
  frame_parms,
  dlsch_ue,
  symbol,
  nb_rb);
knopp's avatar
 
knopp committed
302
  */
303 304
  if (first_symbol_flag==1) {
    dlsch_channel_level(lte_ue_pdsch_vars[eNB_id]->dl_ch_estimates_ext,
305 306 307 308
                        frame_parms,
                        avg,
                        symbol,
                        nb_rb);
309
#ifdef DEBUG_PHY
jiangx's avatar
jiangx committed
310
    LOG_D(PHY,"[DLSCH] avg[0] %d\n",avg[0]);
311
#endif
312

313 314 315 316
    // the channel gain should be the effective gain of precoding + channel
    // however lets be more conservative and set maxh = nb_tx*nb_rx*max(h_i)
    // in case of precoding we add an additional factor of two for the precoding gain
    avgs = 0;
317

318 319
    for (aatx=0;aatx<frame_parms->nb_antennas_tx_eNB;aatx++)
      for (aarx=0;aarx<frame_parms->nb_antennas_rx;aarx++)
320 321
        avgs = cmax(avgs,avg[(aatx<<1)+aarx]);
    //  avgs = cmax(avgs,avg[(aarx<<1)+aatx]);
322

Elena Lukashova's avatar
typo  
Elena Lukashova committed
323
   lte_ue_pdsch_vars[eNB_id]->log2_maxh = (log2_approx(avgs)/2) + interf_unaw_shift;
324 325
    // + log2_approx(frame_parms->nb_antennas_tx_eNB-1) //-1 because log2_approx counts the number of bits
    //      + log2_approx(frame_parms->nb_antennas_rx-1);
326

327
    if ((dlsch0_harq->mimo_mode>=UNIFORM_PRECODING11) &&
328 329
        (dlsch0_harq->mimo_mode< DUALSTREAM_UNIFORM_PRECODING1) &&
        (dlsch0_harq->dl_power_off==1)) // we are in TM 6
330 331
      lte_ue_pdsch_vars[eNB_id]->log2_maxh++;

332 333
    //printf("log2_maxh =%d\n",lte_ue_pdsch_vars[eNB_id]->log2_maxh);
    
334
    // this version here applies the factor .5 also to the extra terms. however, it does not work so well as the one above
335
    /* K = Nb_rx         in TM1
336 337 338 339
       Nb_tx*Nb_rx   in TM2,4,5
       Nb_tx^2*Nb_rx in TM6 */
    /*
      K = frame_parms->nb_antennas_rx*frame_parms->nb_antennas_tx_eNB; //that also covers TM1 since Nb_tx=1
340 341 342
      if ((dlsch0_harq->mimo_mode>=UNIFORM_PRECODING11) &&
      (dlsch0_harq->mimo_mode< DUALSTREAM_UNIFORM_PRECODING1) &&
      (dlsch0_harq->dl_power_off==1)) // we are in TM 6
343 344 345 346 347 348
      K *= frame_parms->nb_antennas_tx_eNB;

      lte_ue_pdsch_vars[eNB_id]->log2_maxh = (log2_approx(K*avgs)/2);
    */

#ifdef DEBUG_PHY
jiangx's avatar
jiangx committed
349 350
    LOG_D(PHY,"[DLSCH] log2_maxh = %d (%d,%d)\n",lte_ue_pdsch_vars[eNB_id]->log2_maxh,avg[0],avgs);
    LOG_D(PHY,"[DLSCH] mimo_mode = %d\n", dlsch0_harq->mimo_mode);
351 352
#endif
  }
353

354 355 356
  aatx = frame_parms->nb_antennas_tx_eNB;
  aarx = frame_parms->nb_antennas_rx;

357
  if (dlsch0_harq->mimo_mode<LARGE_CDD) {// SISO or ALAMOUTI
358
    
Elena Lukashova's avatar
Elena Lukashova committed
359
    	dlsch_channel_compensation(lte_ue_pdsch_vars[eNB_id]->rxdataF_ext,
360 361 362 363 364 365 366 367
                               lte_ue_pdsch_vars[eNB_id]->dl_ch_estimates_ext,
                               lte_ue_pdsch_vars[eNB_id]->dl_ch_mag0,
                               lte_ue_pdsch_vars[eNB_id]->dl_ch_magb0,
                               lte_ue_pdsch_vars[eNB_id]->rxdataF_comp0,
                               (aatx>1) ? lte_ue_pdsch_vars[eNB_id]->rho : NULL,
                               frame_parms,
                               symbol,
                               first_symbol_flag,
Elena Lukashova's avatar
Elena Lukashova committed
368
                               dlsch0_harq->Qm,
369 370 371 372 373 374 375 376 377
                               nb_rb,
                               lte_ue_pdsch_vars[eNB_id]->log2_maxh,
                               phy_measurements); // log2_maxh+I0_shift
 /*
 if (symbol == 5) {
     write_output("rxF_comp_d.m","rxF_c_d",&lte_ue_pdsch_vars[eNB_id]->rxdataF_comp0[0][symbol*frame_parms->N_RB_DL*12],frame_parms->N_RB_DL*12,1,1);
 } */
    if ((rx_type==rx_IC_single_stream) && 
        (eNB_id_i<phy_vars_ue->n_connected_eNB)) {
Elena Lukashova's avatar
Elena Lukashova committed
378 379
         
	 dlsch_channel_compensation(lte_ue_pdsch_vars[eNB_id_i]->rxdataF_ext,
380 381 382 383 384 385 386 387 388 389 390 391
                                 lte_ue_pdsch_vars[eNB_id_i]->dl_ch_estimates_ext,
                                 lte_ue_pdsch_vars[eNB_id_i]->dl_ch_mag0,
                                 lte_ue_pdsch_vars[eNB_id_i]->dl_ch_magb0,
                                 lte_ue_pdsch_vars[eNB_id_i]->rxdataF_comp0,
                                 (aatx>1) ? lte_ue_pdsch_vars[eNB_id_i]->rho : NULL,
                                 frame_parms,
                                 symbol,
                                 first_symbol_flag,
                                 i_mod,
                                 nb_rb,
                                 lte_ue_pdsch_vars[eNB_id]->log2_maxh,
                                 phy_measurements); // log2_maxh+I0_shift
392
#ifdef DEBUG_PHY
393

394
      if (symbol == 5) {
395
        write_output("rxF_comp_d.m","rxF_c_d",&lte_ue_pdsch_vars[eNB_id]->rxdataF_comp0[0][symbol*frame_parms->N_RB_DL*12],frame_parms->N_RB_DL*12,1,1);
396

397
        write_output("rxF_comp_i.m","rxF_c_i",&lte_ue_pdsch_vars[eNB_id_i]->rxdataF_comp0[0][symbol*frame_parms->N_RB_DL*12],frame_parms->N_RB_DL*12,1,1);     
398 399
      }
#endif 
Elena Lukashova's avatar
Elena Lukashova committed
400
     // compute correlation between signal and interference channels
401
      dlsch_dual_stream_correlation(frame_parms,
402 403 404 405 406 407
                                    symbol,
                                    nb_rb,
                                    lte_ue_pdsch_vars[eNB_id]->dl_ch_estimates_ext,
                                    lte_ue_pdsch_vars[eNB_id_i]->dl_ch_estimates_ext,
                                    lte_ue_pdsch_vars[eNB_id]->dl_ch_rho_ext[harq_pid][round],
                                    lte_ue_pdsch_vars[eNB_id]->log2_maxh);
408
    }
409
    
410
  }
411 412 413
  else if ((dlsch0_harq->mimo_mode == LARGE_CDD) || 
           ((dlsch0_harq->mimo_mode >=DUALSTREAM_UNIFORM_PRECODING1) && 
            (dlsch0_harq->mimo_mode <=DUALSTREAM_PUSCH_PRECODING))){  // TM3 or TM4
414
    //   LOG_I(PHY,"Running PDSCH RX for TM3\n");
415
	      
416
    if (frame_parms->nb_antennas_tx_eNB == 2) {
417 418 419 420 421 422 423 424 425 426
       
	 
	 // scaling interfering channel (following for TM56)
	dlsch_scale_channel(lte_ue_pdsch_vars[eNB_id]->dl_ch_estimates_ext,
			    frame_parms,
			    dlsch_ue,
			    symbol,
			    nb_rb);
	
	        
427
      if (first_symbol_flag==1) {
428 429
        // effective channel of desired user is always stronger than interfering eff. channel
        dlsch_channel_level_TM34(lte_ue_pdsch_vars[eNB_id]->dl_ch_estimates_ext, 
Elena Lukashova's avatar
Elena Lukashova committed
430 431
                                 frame_parms,
				 lte_ue_pdsch_vars[eNB_id]->pmi_ext,
Elena Lukashova's avatar
Elena Lukashova committed
432 433 434
                                 avg,
				 symbol,
				 nb_rb,
435 436
                                 dlsch0_harq->mimo_mode);
	    
Elena Lukashova's avatar
Elena Lukashova committed
437
	
438
	if (rx_type>rx_standard) {
439 440 441
	  //	LOG_D(PHY,"llr_offset = %d\n",offset_mumimo_llr_drange[dlsch0_harq->mcs][(dlsch1_harq->mcs>>1)-1]);
	  lte_ue_pdsch_vars[eNB_id]->log2_maxh = log2_approx(avg[0]) - 13 + offset_mumimo_llr_drange[dlsch0_harq->mcs][(get_Qm(dlsch1_harq->mcs)>>1)-1];
	}
442
	else
443 444 445 446 447
	// to avoid tails in SNR/BLER curves
	lte_ue_pdsch_vars[eNB_id]->log2_maxh0 = (log2_approx(avg[0])/2)+interf_unaw_shift_mcs[dlsch0_harq->mcs]; 
	//printf("I-UA shift layer1 = %d\n",interf_unaw_shift_mcs[dlsch0_harq->mcs]); 
	lte_ue_pdsch_vars[eNB_id]->log2_maxh1 = (log2_approx(avg[0])/2)+interf_unaw_shift_mcs[dlsch1_harq->mcs];
	//printf("I-UA shift layer2 = %d\n",interf_unaw_shift_mcs[dlsch1_harq->mcs] );
448 449 450 451 452 453 454
      }
    
      dlsch_channel_compensation_TM34(frame_parms, 
                                     lte_ue_pdsch_vars[eNB_id],
                                     phy_measurements, 
                                     eNB_id, 
                                     symbol, 
Elena Lukashova's avatar
Elena Lukashova committed
455 456
                                     dlsch0_harq->Qm, 
                                     dlsch1_harq->Qm,
457 458 459 460
                                     harq_pid,
                                     dlsch0_harq->round,
                                     dlsch0_harq->mimo_mode,
                                     nb_rb, 
461 462
                                     lte_ue_pdsch_vars[eNB_id]->log2_maxh0,
				     lte_ue_pdsch_vars[eNB_id]->log2_maxh1); 
Elena Lukashova's avatar
Elena Lukashova committed
463
   	/*   
464 465 466 467 468 469 470 471
       if (symbol == 5) {
   
     write_output("rxF_comp_d00.m","rxF_c_d00",&lte_ue_pdsch_vars[eNB_id]->rxdataF_comp0[0][symbol*frame_parms->N_RB_DL*12],frame_parms->N_RB_DL*12,1,1);// should be QAM
     write_output("rxF_comp_d01.m","rxF_c_d01",&lte_ue_pdsch_vars[eNB_id]->rxdataF_comp0[1][symbol*frame_parms->N_RB_DL*12],frame_parms->N_RB_DL*12,1,1);//should be almost 0
     write_output("rxF_comp_d10.m","rxF_c_d10",&lte_ue_pdsch_vars[eNB_id]->rxdataF_comp1[harq_pid][round][0][symbol*frame_parms->N_RB_DL*12],frame_parms->N_RB_DL*12,1,1);//should be almost 0
     write_output("rxF_comp_d11.m","rxF_c_d11",&lte_ue_pdsch_vars[eNB_id]->rxdataF_comp1[harq_pid][round][1][symbol*frame_parms->N_RB_DL*12],frame_parms->N_RB_DL*12,1,1);//should be QAM

   
Elena Lukashova's avatar
Elena Lukashova committed
472
	}*/
473
      // compute correlation between signal and interference channels (rho12 and rho21)
Elena Lukashova's avatar
Elena Lukashova committed
474 475
      
	dlsch_dual_stream_correlation(frame_parms,
476 477 478 479 480
                                    symbol,
                                    nb_rb,
                                    lte_ue_pdsch_vars[eNB_id]->dl_ch_estimates_ext,
                                    &(lte_ue_pdsch_vars[eNB_id]->dl_ch_estimates_ext[2]),
                                    lte_ue_pdsch_vars[eNB_id]->dl_ch_rho_ext[harq_pid][round],
481
			   	    lte_ue_pdsch_vars[eNB_id]->log2_maxh0);
482 483

      //to be optimized (just take complex conjugate)
Elena Lukashova's avatar
Elena Lukashova committed
484

485
      dlsch_dual_stream_correlation(frame_parms,
486 487 488 489
                                    symbol,
                                    nb_rb,
                                    &(lte_ue_pdsch_vars[eNB_id]->dl_ch_estimates_ext[2]),
                                    lte_ue_pdsch_vars[eNB_id]->dl_ch_estimates_ext,
490
                                    lte_ue_pdsch_vars[eNB_id]->dl_ch_rho2_ext,
491
				    lte_ue_pdsch_vars[eNB_id]->log2_maxh1);
492 493
      //printf("TM3 log2_maxh : %d\n",lte_ue_pdsch_vars[eNB_id]->log2_maxh);

Elena Lukashova's avatar
Elena Lukashova committed
494
   }
495
      else {
Elena Lukashova's avatar
Elena Lukashova committed
496
     LOG_E(PHY, "only 2 tx antennas supported for TM3\n");
497
      return(-1);
498 499
    }
  }
500
  else if (dlsch0_harq->mimo_mode<DUALSTREAM_UNIFORM_PRECODING1) {// single-layer precoding (TM5, TM6)
Elena Lukashova's avatar
Elena Lukashova committed
501
   //    printf("Channel compensation for precoding\n");
502
    if ((rx_type==rx_IC_single_stream) && (eNB_id_i==phy_vars_ue->n_connected_eNB)) {  // TM5 two-user
503 504 505

      // Scale the channel estimates for interfering stream

506
      dlsch_scale_channel(lte_ue_pdsch_vars[eNB_id_i]->dl_ch_estimates_ext,
507 508 509 510
                          frame_parms,
                          dlsch_ue,
                          symbol,
                          nb_rb);     
511 512 513

      /* compute new log2_maxh for effective channel */
      if (first_symbol_flag==1) {
Elena Lukashova's avatar
Elena Lukashova committed
514

515
        // effective channel of desired user is always stronger than interfering eff. channel
Elena Lukashova's avatar
Elena Lukashova committed
516 517 518 519 520 521
       dlsch_channel_level_TM56(lte_ue_pdsch_vars[eNB_id]->dl_ch_estimates_ext,
				frame_parms,
				lte_ue_pdsch_vars[eNB_id]->pmi_ext,
				avg,
				symbol,
				nb_rb);
522

523 524
        //    LOG_D(PHY,"llr_offset = %d\n",offset_mumimo_llr_drange[dlsch0_harq->mcs][(i_mod>>1)-1]);
        avg[0] = log2_approx(avg[0]) - 13 + offset_mumimo_llr_drange[dlsch0_harq->mcs][(i_mod>>1)-1];
525

526 527
        lte_ue_pdsch_vars[eNB_id]->log2_maxh = cmax(avg[0],0);
        //printf("log1_maxh =%d\n",lte_ue_pdsch_vars[eNB_id]->log2_maxh);
528 529 530 531 532 533 534 535 536 537 538 539
      }

      dlsch_channel_compensation_TM56(lte_ue_pdsch_vars[eNB_id]->rxdataF_ext,
                                      lte_ue_pdsch_vars[eNB_id]->dl_ch_estimates_ext,
                                      lte_ue_pdsch_vars[eNB_id]->dl_ch_mag0,
                                      lte_ue_pdsch_vars[eNB_id]->dl_ch_magb0,
                                      lte_ue_pdsch_vars[eNB_id]->rxdataF_comp0,
                                      lte_ue_pdsch_vars[eNB_id]->pmi_ext,
                                      frame_parms,
                                      phy_measurements,
                                      eNB_id,
                                      symbol,
540
                                      dlsch0_harq->Qm,
541 542
                                      nb_rb,
                                      lte_ue_pdsch_vars[eNB_id]->log2_maxh,
543
                                      dlsch0_harq->dl_power_off);
544 545 546 547

      // if interference source is MU interference, assume opposite precoder was used at eNB

      // calculate opposite PMI
548
      for (rb=0; rb<nb_rb; rb++) {
Elena Lukashova's avatar
Elena Lukashova committed
549

550 551 552 553
        switch(lte_ue_pdsch_vars[eNB_id]->pmi_ext[rb]) {
        case 0:
          lte_ue_pdsch_vars[eNB_id_i]->pmi_ext[rb]=1;
          break;
Elena Lukashova's avatar
Elena Lukashova committed
554
       case 1:
555 556
          lte_ue_pdsch_vars[eNB_id_i]->pmi_ext[rb]=0;
          break;
Elena Lukashova's avatar
Elena Lukashova committed
557
       case 2:
558 559 560 561 562 563
          lte_ue_pdsch_vars[eNB_id_i]->pmi_ext[rb]=3;
          break;
        case 3:
          lte_ue_pdsch_vars[eNB_id_i]->pmi_ext[rb]=2;
          break;
        }
564

Elena Lukashova's avatar
Elena Lukashova committed
565
       //  if (rb==0)
566 567
        //    printf("pmi %d, pmi_i %d\n",lte_ue_pdsch_vars[eNB_id]->pmi_ext[rb],lte_ue_pdsch_vars[eNB_id_i]->pmi_ext[rb]);

568 569
      }

570 571 572 573 574 575 576 577 578 579 580 581 582
      dlsch_channel_compensation_TM56(lte_ue_pdsch_vars[eNB_id_i]->rxdataF_ext,
                                      lte_ue_pdsch_vars[eNB_id_i]->dl_ch_estimates_ext,
                                      lte_ue_pdsch_vars[eNB_id_i]->dl_ch_mag0,
                                      lte_ue_pdsch_vars[eNB_id_i]->dl_ch_magb0,
                                      lte_ue_pdsch_vars[eNB_id_i]->rxdataF_comp0,
                                      lte_ue_pdsch_vars[eNB_id_i]->pmi_ext,
                                      frame_parms,
                                      phy_measurements,
                                      eNB_id_i,
                                      symbol,
                                      i_mod,
                                      nb_rb,
                                      lte_ue_pdsch_vars[eNB_id]->log2_maxh,
583
                                      dlsch0_harq->dl_power_off);
584

Elena Lukashova's avatar
Elena Lukashova committed
585

586
#ifdef DEBUG_PHY
587

588
      if (symbol==5) {
589
        write_output("rxF_comp_d.m","rxF_c_d",&lte_ue_pdsch_vars[eNB_id]->rxdataF_comp0[0][symbol*frame_parms->N_RB_DL*12],frame_parms->N_RB_DL*12,1,1);
Elena Lukashova's avatar
Elena Lukashova committed
590
       write_output("rxF_comp_i.m","rxF_c_i",&lte_ue_pdsch_vars[eNB_id_i]->rxdataF_comp0[0][symbol*frame_parms->N_RB_DL*12],frame_parms->N_RB_DL*12,1,1);
591
      }
592
#endif
593
      dlsch_dual_stream_correlation(frame_parms, 
594 595 596 597 598 599
                                    symbol, 
                                    nb_rb, 
                                    lte_ue_pdsch_vars[eNB_id]->dl_ch_estimates_ext, 
                                    lte_ue_pdsch_vars[eNB_id_i]->dl_ch_estimates_ext, 
                                    lte_ue_pdsch_vars[eNB_id]->dl_ch_rho_ext[harq_pid][round], 
                                    lte_ue_pdsch_vars[eNB_id]->log2_maxh);
600

601
    } else {
602
      dlsch_channel_compensation_TM56(lte_ue_pdsch_vars[eNB_id]->rxdataF_ext,
603 604 605 606 607 608 609 610 611
                                      lte_ue_pdsch_vars[eNB_id]->dl_ch_estimates_ext,
                                      lte_ue_pdsch_vars[eNB_id]->dl_ch_mag0,
                                      lte_ue_pdsch_vars[eNB_id]->dl_ch_magb0,
                                      lte_ue_pdsch_vars[eNB_id]->rxdataF_comp0,
                                      lte_ue_pdsch_vars[eNB_id]->pmi_ext,
                                      frame_parms,
                                      phy_measurements,
                                      eNB_id,
                                      symbol,
612
                                      dlsch0_harq->Qm,
613 614 615
                                      nb_rb,
                                      lte_ue_pdsch_vars[eNB_id]->log2_maxh,
                                      1);
Elena Lukashova's avatar
Elena Lukashova committed
616

617 618 619 620
    }
  }

  //  printf("MRC\n");
621
  if (frame_parms->nb_antennas_rx > 1) {
622 623 624
    if ((dlsch0_harq->mimo_mode == LARGE_CDD) ||
        ((dlsch0_harq->mimo_mode >=DUALSTREAM_UNIFORM_PRECODING1) && 
         (dlsch0_harq->mimo_mode <=DUALSTREAM_PUSCH_PRECODING))){  // TM3 or TM4
625
      if (frame_parms->nb_antennas_tx_eNB == 2) {
Elena Lukashova's avatar
Elena Lukashova committed
626

627 628 629 630 631 632 633
	dlsch_detection_mrc_TM34(frame_parms, 
                                 lte_ue_pdsch_vars[eNB_id],
				 harq_pid,
                                 dlsch0_harq->round,
				 symbol,
				 nb_rb,
				 1);
634
      }
635 636
    } else {

637
      dlsch_detection_mrc(frame_parms,
638 639 640 641 642 643 644 645 646 647 648
                          lte_ue_pdsch_vars[eNB_id]->rxdataF_comp0,
                          lte_ue_pdsch_vars[eNB_id_i]->rxdataF_comp0,
                          lte_ue_pdsch_vars[eNB_id]->rho,
                          lte_ue_pdsch_vars[eNB_id]->dl_ch_rho_ext[harq_pid][round],
                          lte_ue_pdsch_vars[eNB_id]->dl_ch_mag0,
                          lte_ue_pdsch_vars[eNB_id]->dl_ch_magb0,
                          lte_ue_pdsch_vars[eNB_id_i]->dl_ch_mag0,
                          lte_ue_pdsch_vars[eNB_id_i]->dl_ch_magb0,
                          symbol,
                          nb_rb,
                          rx_type==rx_IC_single_stream); 
649 650
    }
  }
651

652 653 654 655 656 657 658 659 660 661 662 663 664 665 666
  //  printf("Combining");
  if ((dlsch0_harq->mimo_mode == SISO) ||
      ((dlsch0_harq->mimo_mode >= UNIFORM_PRECODING11) &&
       (dlsch0_harq->mimo_mode <= PUSCH_PRECODING0))) {

    /*
      dlsch_siso(frame_parms,
      lte_ue_pdsch_vars[eNB_id]->rxdataF_comp,
      lte_ue_pdsch_vars[eNB_id_i]->rxdataF_comp,
      symbol,
      nb_rb);
    */
  } else if (dlsch0_harq->mimo_mode == ALAMOUTI) {

    dlsch_alamouti(frame_parms,
667 668 669 670 671
                   lte_ue_pdsch_vars[eNB_id]->rxdataF_comp0,
                   lte_ue_pdsch_vars[eNB_id]->dl_ch_mag0,
                   lte_ue_pdsch_vars[eNB_id]->dl_ch_magb0,
                   symbol,
                   nb_rb);
Elena Lukashova's avatar
Elena Lukashova committed
672
        
673
  } 
674
          
675 676 677 678 679 680
  //    printf("LLR");
  if ((dlsch0_harq->mimo_mode == LARGE_CDD) || 
      ((dlsch0_harq->mimo_mode >=DUALSTREAM_UNIFORM_PRECODING1) && 
       (dlsch0_harq->mimo_mode <=DUALSTREAM_PUSCH_PRECODING)))  {
    rxdataF_comp_ptr = lte_ue_pdsch_vars[eNB_id]->rxdataF_comp1[harq_pid][round];
    dl_ch_mag_ptr = lte_ue_pdsch_vars[eNB_id]->dl_ch_mag1;
681 682
  }
  else {
683 684 685
    rxdataF_comp_ptr = lte_ue_pdsch_vars[eNB_id_i]->rxdataF_comp0;
    dl_ch_mag_ptr = lte_ue_pdsch_vars[eNB_id_i]->dl_ch_mag0;
    //i_mod should have been passed as a parameter
686
  }
687

688
  switch (dlsch0_harq->Qm) {
689
  case 2 : 
690 691 692 693 694
    if (rx_type==rx_standard) {
        dlsch_qpsk_llr(frame_parms,
                       lte_ue_pdsch_vars[eNB_id]->rxdataF_comp0,
                       lte_ue_pdsch_vars[eNB_id]->llr[0],
                       symbol,first_symbol_flag,nb_rb,
695
                       adjust_G2(frame_parms,dlsch0_harq->rb_alloc_even,2,subframe,symbol),
696 697 698
                       lte_ue_pdsch_vars[eNB_id]->llr128);
    }
      else if ((rx_type==rx_IC_single_stream) || (rx_type==rx_IC_dual_stream)) {
Elena Lukashova's avatar
Elena Lukashova committed
699
        if (dlsch1_harq->Qm == 2) {
700 701 702 703 704 705
          dlsch_qpsk_qpsk_llr(frame_parms,
                              lte_ue_pdsch_vars[eNB_id]->rxdataF_comp0,
                              rxdataF_comp_ptr,
                              lte_ue_pdsch_vars[eNB_id]->dl_ch_rho_ext[harq_pid][round],
                              lte_ue_pdsch_vars[eNB_id]->llr[0],
                              symbol,first_symbol_flag,nb_rb,
Elena Lukashova's avatar
Elena Lukashova committed
706
                              adjust_G2(frame_parms,dlsch0_harq->rb_alloc_even,2,subframe,symbol),
707 708 709 710 711 712 713 714
                              lte_ue_pdsch_vars[eNB_id]->llr128);
          if (rx_type==rx_IC_dual_stream) {
            dlsch_qpsk_qpsk_llr(frame_parms,
                                rxdataF_comp_ptr,
                                lte_ue_pdsch_vars[eNB_id]->rxdataF_comp0,
                                lte_ue_pdsch_vars[eNB_id]->dl_ch_rho2_ext,
                                lte_ue_pdsch_vars[eNB_id]->llr[1],
                                symbol,first_symbol_flag,nb_rb,
Elena Lukashova's avatar
Elena Lukashova committed
715
                               adjust_G2(frame_parms,dlsch1_harq->rb_alloc_even,2,subframe,symbol),
716 717 718
                                lte_ue_pdsch_vars[eNB_id]->llr128_2ndstream);
          }
        }
Elena Lukashova's avatar
Elena Lukashova committed
719
        else if (dlsch1_harq->Qm == 4) { 
720 721 722 723 724 725 726
          dlsch_qpsk_16qam_llr(frame_parms,
                               lte_ue_pdsch_vars[eNB_id]->rxdataF_comp0,
                               rxdataF_comp_ptr,//i
                               dl_ch_mag_ptr,//i
                               lte_ue_pdsch_vars[eNB_id]->dl_ch_rho_ext[harq_pid][round],
                               lte_ue_pdsch_vars[eNB_id]->llr[0],
                               symbol,first_symbol_flag,nb_rb,
Elena Lukashova's avatar
Elena Lukashova committed
727
                               adjust_G2(frame_parms,dlsch0_harq->rb_alloc_even,2,subframe,symbol),
728 729 730 731 732 733 734 735 736
                               lte_ue_pdsch_vars[eNB_id]->llr128);
          if (rx_type==rx_IC_dual_stream) {
            dlsch_16qam_qpsk_llr(frame_parms,
                                 rxdataF_comp_ptr,
                                 lte_ue_pdsch_vars[eNB_id]->rxdataF_comp0,//i
                                 dl_ch_mag_ptr,
                                 lte_ue_pdsch_vars[eNB_id]->dl_ch_rho2_ext,
                                 lte_ue_pdsch_vars[eNB_id]->llr[1],
                                 symbol,first_symbol_flag,nb_rb,
Elena Lukashova's avatar
Elena Lukashova committed
737
                                 adjust_G2(frame_parms,dlsch1_harq->rb_alloc_even,4,subframe,symbol),
738 739 740 741 742 743 744 745 746 747 748
                                 lte_ue_pdsch_vars[eNB_id]->llr128_2ndstream);
          }
        }
        else {
          dlsch_qpsk_64qam_llr(frame_parms,
                               lte_ue_pdsch_vars[eNB_id]->rxdataF_comp0,
                               rxdataF_comp_ptr,//i
                               dl_ch_mag_ptr,//i
                               lte_ue_pdsch_vars[eNB_id]->dl_ch_rho_ext[harq_pid][round],
                               lte_ue_pdsch_vars[eNB_id]->llr[0],
                               symbol,first_symbol_flag,nb_rb,
Elena Lukashova's avatar
Elena Lukashova committed
749
                               adjust_G2(frame_parms,dlsch0_harq->rb_alloc_even,2,subframe,symbol),
750 751 752 753 754 755 756 757 758
                               lte_ue_pdsch_vars[eNB_id]->llr128);
          if (rx_type==rx_IC_dual_stream) {
            dlsch_64qam_qpsk_llr(frame_parms,
                                 rxdataF_comp_ptr,
                                 lte_ue_pdsch_vars[eNB_id]->rxdataF_comp0,//i
                                 dl_ch_mag_ptr,
                                 lte_ue_pdsch_vars[eNB_id]->dl_ch_rho2_ext,
                                 lte_ue_pdsch_vars[eNB_id]->llr[1],
                                 symbol,first_symbol_flag,nb_rb,
Elena Lukashova's avatar
Elena Lukashova committed
759
                                 adjust_G2(frame_parms,dlsch1_harq->rb_alloc_even,6,subframe,symbol),
760 761 762
                                 lte_ue_pdsch_vars[eNB_id]->llr128_2ndstream);
          }
        }          
763
      }
764 765 766 767 768 769 770 771
    break;
  case 4 :
    if (rx_type==rx_standard) {
      dlsch_16qam_llr(frame_parms,
                      lte_ue_pdsch_vars[eNB_id]->rxdataF_comp0,
                      lte_ue_pdsch_vars[eNB_id]->llr[0],
                      lte_ue_pdsch_vars[eNB_id]->dl_ch_mag0,
                      symbol,first_symbol_flag,nb_rb,
772
                      adjust_G2(frame_parms,dlsch0_harq->rb_alloc_even,4,subframe,symbol),
773
                      lte_ue_pdsch_vars[eNB_id]->llr128);
774
    }
775
    else if ((rx_type==rx_IC_single_stream) || (rx_type==rx_IC_dual_stream)) {
Elena Lukashova's avatar
Elena Lukashova committed
776
      if (dlsch1_harq->Qm == 2) {
777 778 779 780 781 782 783
        dlsch_16qam_qpsk_llr(frame_parms,
                             lte_ue_pdsch_vars[eNB_id]->rxdataF_comp0,
                             rxdataF_comp_ptr,//i
                             lte_ue_pdsch_vars[eNB_id]->dl_ch_mag0,
                             lte_ue_pdsch_vars[eNB_id]->dl_ch_rho_ext[harq_pid][round],
                             lte_ue_pdsch_vars[eNB_id]->llr[0],
                             symbol,first_symbol_flag,nb_rb,
Elena Lukashova's avatar
Elena Lukashova committed
784
                             adjust_G2(frame_parms,dlsch0_harq->rb_alloc_even,4,subframe,symbol),
785 786 787 788 789 790 791 792 793
                             lte_ue_pdsch_vars[eNB_id]->llr128);
        if (rx_type==rx_IC_dual_stream) {
          dlsch_qpsk_16qam_llr(frame_parms,
                               rxdataF_comp_ptr,
                               lte_ue_pdsch_vars[eNB_id]->rxdataF_comp0,//i
                               lte_ue_pdsch_vars[eNB_id]->dl_ch_mag0,//i
                               lte_ue_pdsch_vars[eNB_id]->dl_ch_rho2_ext,
                               lte_ue_pdsch_vars[eNB_id]->llr[1],
                               symbol,first_symbol_flag,nb_rb,
Elena Lukashova's avatar
Elena Lukashova committed
794
                               adjust_G2(frame_parms,dlsch1_harq->rb_alloc_even,2,subframe,symbol),
795 796
                               lte_ue_pdsch_vars[eNB_id]->llr128_2ndstream);
        }
797
      }
Elena Lukashova's avatar
Elena Lukashova committed
798
      else if (dlsch1_harq->Qm == 4) {
799 800 801 802 803 804 805 806
	dlsch_16qam_16qam_llr(frame_parms,
			      lte_ue_pdsch_vars[eNB_id]->rxdataF_comp0,
			      rxdataF_comp_ptr,//i
			      lte_ue_pdsch_vars[eNB_id]->dl_ch_mag0,
			      dl_ch_mag_ptr,//i
			      lte_ue_pdsch_vars[eNB_id]->dl_ch_rho_ext[harq_pid][round],
			      lte_ue_pdsch_vars[eNB_id]->llr[0],
			      symbol,first_symbol_flag,nb_rb,
Elena Lukashova's avatar
Elena Lukashova committed
807
			      adjust_G2(frame_parms,dlsch0_harq->rb_alloc_even,4,subframe,symbol),
808 809 810 811 812 813 814 815 816 817
			      lte_ue_pdsch_vars[eNB_id]->llr128);
	if (rx_type==rx_IC_dual_stream) {
	  dlsch_16qam_16qam_llr(frame_parms,
				rxdataF_comp_ptr,
				lte_ue_pdsch_vars[eNB_id]->rxdataF_comp0,//i
				dl_ch_mag_ptr,
				lte_ue_pdsch_vars[eNB_id]->dl_ch_mag0,//i
				lte_ue_pdsch_vars[eNB_id]->dl_ch_rho2_ext,
				lte_ue_pdsch_vars[eNB_id]->llr[1],
				symbol,first_symbol_flag,nb_rb,
Elena Lukashova's avatar
Elena Lukashova committed
818
				adjust_G2(frame_parms,dlsch1_harq->rb_alloc_even,4,subframe,symbol),
819 820
				lte_ue_pdsch_vars[eNB_id]->llr128_2ndstream);
	}
821 822
      }
      else {
823 824 825 826 827 828 829 830
	dlsch_16qam_64qam_llr(frame_parms,
			      lte_ue_pdsch_vars[eNB_id]->rxdataF_comp0,
			      rxdataF_comp_ptr,//i
			      lte_ue_pdsch_vars[eNB_id]->dl_ch_mag0,
			      dl_ch_mag_ptr,//i
			      lte_ue_pdsch_vars[eNB_id]->dl_ch_rho_ext[harq_pid][round],
			      lte_ue_pdsch_vars[eNB_id]->llr[0],
			      symbol,first_symbol_flag,nb_rb,
Elena Lukashova's avatar
Elena Lukashova committed
831
			      adjust_G2(frame_parms,dlsch0_harq->rb_alloc_even,4,subframe,symbol),
832 833 834 835 836 837 838 839 840 841
			      lte_ue_pdsch_vars[eNB_id]->llr128);
	if (rx_type==rx_IC_dual_stream) {
	  dlsch_64qam_16qam_llr(frame_parms,
				rxdataF_comp_ptr,
				lte_ue_pdsch_vars[eNB_id]->rxdataF_comp0,
				dl_ch_mag_ptr,
				lte_ue_pdsch_vars[eNB_id]->dl_ch_mag0,
				lte_ue_pdsch_vars[eNB_id]->dl_ch_rho2_ext,
				lte_ue_pdsch_vars[eNB_id]->llr[1],
				symbol,first_symbol_flag,nb_rb,
Elena Lukashova's avatar
Elena Lukashova committed
842
				adjust_G2(frame_parms,dlsch1_harq->rb_alloc_even,6,subframe,symbol),
843 844 845 846 847 848 849 850 851 852 853 854 855
				lte_ue_pdsch_vars[eNB_id]->llr128_2ndstream);
	}
      }
    }
    break;
  case 6 :
    if (rx_type==rx_standard) {
      dlsch_64qam_llr(frame_parms,
                      lte_ue_pdsch_vars[eNB_id]->rxdataF_comp0,
                      lte_ue_pdsch_vars[eNB_id]->llr[0],
                      lte_ue_pdsch_vars[eNB_id]->dl_ch_mag0,
                      lte_ue_pdsch_vars[eNB_id]->dl_ch_magb0,
                      symbol,first_symbol_flag,nb_rb,
856
                      adjust_G2(frame_parms,dlsch0_harq->rb_alloc_even,6,subframe,symbol),
857 858 859
                      lte_ue_pdsch_vars[eNB_id]->llr128);
    }
    else if ((rx_type==rx_IC_single_stream) || (rx_type==rx_IC_dual_stream)) {
Elena Lukashova's avatar
Elena Lukashova committed
860
      if (dlsch1_harq->Qm == 2) {              
861
	dlsch_64qam_qpsk_llr(frame_parms,
862
			     lte_ue_pdsch_vars[eNB_id]->rxdataF_comp0,
863 864 865
			     rxdataF_comp_ptr,//i
			     lte_ue_pdsch_vars[eNB_id]->dl_ch_mag0,
			     lte_ue_pdsch_vars[eNB_id]->dl_ch_rho_ext[harq_pid][round],
866 867
			     lte_ue_pdsch_vars[eNB_id]->llr[0],
			     symbol,first_symbol_flag,nb_rb,
Elena Lukashova's avatar
Elena Lukashova committed
868
			     adjust_G2(frame_parms,dlsch0_harq->rb_alloc_even,6,subframe,symbol),
869
			     lte_ue_pdsch_vars[eNB_id]->llr128);
870 871 872 873 874 875 876 877
	if (rx_type==rx_IC_dual_stream) {
	  dlsch_qpsk_64qam_llr(frame_parms,
			       rxdataF_comp_ptr,
			       lte_ue_pdsch_vars[eNB_id]->rxdataF_comp0,//i
			       lte_ue_pdsch_vars[eNB_id]->dl_ch_mag0,
			       lte_ue_pdsch_vars[eNB_id]->dl_ch_rho2_ext,
			       lte_ue_pdsch_vars[eNB_id]->llr[1],
			       symbol,first_symbol_flag,nb_rb,
Elena Lukashova's avatar
Elena Lukashova committed
878
			       adjust_G2(frame_parms,dlsch1_harq->rb_alloc_even,2,subframe,symbol),
879 880 881
			       lte_ue_pdsch_vars[eNB_id]->llr128_2ndstream);
	}
      }
Elena Lukashova's avatar
Elena Lukashova committed
882
      else if (dlsch1_harq->Qm == 4) {
883 884 885 886 887 888 889 890
	dlsch_64qam_16qam_llr(frame_parms,
			      lte_ue_pdsch_vars[eNB_id]->rxdataF_comp0,
			      rxdataF_comp_ptr,//i
			      lte_ue_pdsch_vars[eNB_id]->dl_ch_mag0,
			      dl_ch_mag_ptr,//i
			      lte_ue_pdsch_vars[eNB_id]->dl_ch_rho_ext[harq_pid][round],
			      lte_ue_pdsch_vars[eNB_id]->llr[0],
			      symbol,first_symbol_flag,nb_rb,
Elena Lukashova's avatar
Elena Lukashova committed
891
			      adjust_G2(frame_parms,dlsch0_harq->rb_alloc_even,6,subframe,symbol),
892 893 894 895 896 897 898 899 900 901
			      lte_ue_pdsch_vars[eNB_id]->llr128);
	if (rx_type==rx_IC_dual_stream) {
	  dlsch_16qam_64qam_llr(frame_parms,
				rxdataF_comp_ptr,
				lte_ue_pdsch_vars[eNB_id]->rxdataF_comp0,//i
				dl_ch_mag_ptr,
				lte_ue_pdsch_vars[eNB_id]->dl_ch_mag0,//i
				lte_ue_pdsch_vars[eNB_id]->dl_ch_rho2_ext,
				lte_ue_pdsch_vars[eNB_id]->llr[1],
				symbol,first_symbol_flag,nb_rb,
Elena Lukashova's avatar
Elena Lukashova committed
902
				adjust_G2(frame_parms,dlsch1_harq->rb_alloc_even,4,subframe,symbol),
903 904 905 906 907 908 909 910 911 912 913 914
				lte_ue_pdsch_vars[eNB_id]->llr128_2ndstream);
	}
      }
      else {	  
	dlsch_64qam_64qam_llr(frame_parms,
			      lte_ue_pdsch_vars[eNB_id]->rxdataF_comp0,
			      rxdataF_comp_ptr,//i
			      lte_ue_pdsch_vars[eNB_id]->dl_ch_mag0,
			      dl_ch_mag_ptr,//i
			      lte_ue_pdsch_vars[eNB_id]->dl_ch_rho_ext[harq_pid][round],
			      lte_ue_pdsch_vars[eNB_id]->llr[0],
			      symbol,first_symbol_flag,nb_rb,
Elena Lukashova's avatar
Elena Lukashova committed
915
			      adjust_G2(frame_parms,dlsch0_harq->rb_alloc_even,6,subframe,symbol),
916 917 918 919 920 921 922 923 924 925
			      lte_ue_pdsch_vars[eNB_id]->llr128);
	if (rx_type==rx_IC_dual_stream) {
	  dlsch_64qam_64qam_llr(frame_parms,
				rxdataF_comp_ptr,
				lte_ue_pdsch_vars[eNB_id]->rxdataF_comp0,//i
				dl_ch_mag_ptr,
				lte_ue_pdsch_vars[eNB_id]->dl_ch_mag0,//i
				lte_ue_pdsch_vars[eNB_id]->dl_ch_rho2_ext,
				lte_ue_pdsch_vars[eNB_id]->llr[1],
				symbol,first_symbol_flag,nb_rb,