Skip to content

O
OpenXG-RAN
Switch branch/tag
Find file Normal viewHistoryPermalink
ulsch_demodulation.c 58.9 KB
Newer Older
Cedric Roux's avatar
- Fix: avoid infinite loop on mulitcast read thread if no data to read  
Cedric Roux committed
1 
/*******************************************************************************
ghaddab's avatar
License updated  
ghaddab committed
2 3 
    OpenAirInterface 
    Copyright(c) 1999 - 2014 Eurecom
Cedric Roux's avatar
- Fix: avoid infinite loop on mulitcast read thread if no data to read  
Cedric Roux committed
4
ghaddab's avatar
License updated  
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.
Cedric Roux's avatar
- Fix: avoid infinite loop on mulitcast read thread if no data to read  
Cedric Roux committed
9 10
ghaddab's avatar
License updated  
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.
Cedric Roux's avatar
- Fix: avoid infinite loop on mulitcast read thread if no data to read  
Cedric Roux committed
15
ghaddab's avatar
License updated  
ghaddab committed
16 17 18 19 
    You should have received a copy of the GNU General Public License
    along with OpenAirInterface.The full GNU General Public License is 
   included in this distribution in the file called "COPYING". If not, 
   see <http://www.gnu.org/licenses/>.
Cedric Roux's avatar
- Fix: avoid infinite loop on mulitcast read thread if no data to read  
Cedric Roux committed
20 21 

  Contact Information
ghaddab's avatar
License updated  
ghaddab committed
22 23 24 25 
  OpenAirInterface Admin: openair_admin@eurecom.fr
  OpenAirInterface Tech : openair_tech@eurecom.fr
  OpenAirInterface Dev  : openair4g-devel@eurecom.fr
ghaddab's avatar
License Corrected  
ghaddab committed
26 
  Address      : Eurecom, Campus SophiaTech, 450 Route des Chappes, CS 50193 - 06904 Biot Sophia Antipolis cedex, FRANCE
Cedric Roux's avatar
- Fix: avoid infinite loop on mulitcast read thread if no data to read  
Cedric Roux committed
27
ghaddab's avatar
License updated  
ghaddab committed
28 
 *******************************************************************************/
Cedric Roux's avatar
- Fix: avoid infinite loop on mulitcast read thread if no data to read  
Cedric Roux committed
29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 

/*! \file PHY/LTE_TRANSPORT/ulsch_demodulation.c
* \brief Top-level routines for demodulating the PUSCH physical channel from 36.211 V8.6 2009-03
* \author R. Knopp
* \date 2011
* \version 0.1
* \company Eurecom
* \email: knopp@eurecom.fr, florian.kaltenberger@eurecom.fr, ankit.bhamri@eurecom.fr
* \note
* \warning
*/

#include "PHY/defs.h"
#include "PHY/extern.h"
#include "MAC_INTERFACE/defs.h"
#include "MAC_INTERFACE/extern.h"
#include "defs.h"
#include "extern.h"
//#define DEBUG_ULSCH
Raymond Knopp's avatar
Clean-up and bug-fixes from S. Held (IMST)  
Raymond Knopp committed
48 
#include "PHY/sse_intrin.h"
Cedric Roux's avatar
- Fix: avoid infinite loop on mulitcast read thread if no data to read  
Cedric Roux committed
49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 

//extern char* namepointer_chMag ;
//eren
//extern int **ulchmag_eren;
//eren


static short jitter[8]  __attribute__ ((aligned(16))) = {1,0,0,1,0,1,1,0};
static short jitterc[8] __attribute__ ((aligned(16))) = {0,1,1,0,1,0,0,1};

#ifndef OFDMA_ULSCH
void lte_idft(LTE_DL_FRAME_PARMS *frame_parms,uint32_t *z, uint16_t Msc_PUSCH) {

  __m128i idft_in128[3][1200],idft_out128[3][1200];
  int16_t *idft_in0=(int16_t*)idft_in128[0],*idft_out0=(int16_t*)idft_out128[0];
  int16_t *idft_in1=(int16_t*)idft_in128[1],*idft_out1=(int16_t*)idft_out128[1];
  int16_t *idft_in2=(int16_t*)idft_in128[2],*idft_out2=(int16_t*)idft_out128[2];

  uint32_t *z0,*z1,*z2,*z3,*z4,*z5,*z6,*z7,*z8,*z9,*z10=NULL,*z11=NULL;
  int i,ip;

  __m128i norm128;

  //  printf("Doing lte_idft for Msc_PUSCH %d\n",Msc_PUSCH);

  if (frame_parms->Ncp == 0) { // Normal prefix
    z0 = z;
    z1 = z0+(frame_parms->N_RB_DL*12);
    z2 = z1+(frame_parms->N_RB_DL*12);
    //pilot
    z3 = z2+(2*frame_parms->N_RB_DL*12);
    z4 = z3+(frame_parms->N_RB_DL*12);
    z5 = z4+(frame_parms->N_RB_DL*12);

    z6 = z5+(frame_parms->N_RB_DL*12);
    z7 = z6+(frame_parms->N_RB_DL*12);
    z8 = z7+(frame_parms->N_RB_DL*12);
    //pilot
    z9 = z8+(2*frame_parms->N_RB_DL*12);
    z10 = z9+(frame_parms->N_RB_DL*12);
    // srs
    z11 = z10+(frame_parms->N_RB_DL*12);
  }
  else {   // extended prefix
    z0 = z;
    z1 = z0+(frame_parms->N_RB_DL*12);
    //pilot
    z2 = z1+(2*frame_parms->N_RB_DL*12);
    z3 = z2+(frame_parms->N_RB_DL*12);
    z4 = z3+(frame_parms->N_RB_DL*12);

    z5 = z4+(frame_parms->N_RB_DL*12);
    z6 = z5+(frame_parms->N_RB_DL*12);
    //pilot
    z7 = z6+(2*frame_parms->N_RB_DL*12);
    z8 = z7+(frame_parms->N_RB_DL*12);
    // srs
    z9 = z8+(frame_parms->N_RB_DL*12);
  }
  // conjugate input
  for (i=0;i<(Msc_PUSCH>>2);i++) {
    *&(((__m128i*)z0)[i])=_mm_sign_epi16(*&(((__m128i*)z0)[i]),*(__m128i*)&conjugate2[0]);
    *&(((__m128i*)z1)[i])=_mm_sign_epi16(*&(((__m128i*)z1)[i]),*(__m128i*)&conjugate2[0]);
    *&(((__m128i*)z2)[i])=_mm_sign_epi16(*&(((__m128i*)z2)[i]),*(__m128i*)&conjugate2[0]);
    *&(((__m128i*)z3)[i])=_mm_sign_epi16(*&(((__m128i*)z3)[i]),*(__m128i*)&conjugate2[0]);
    *&(((__m128i*)z4)[i])=_mm_sign_epi16(*&(((__m128i*)z4)[i]),*(__m128i*)&conjugate2[0]);
    *&(((__m128i*)z5)[i])=_mm_sign_epi16(*&(((__m128i*)z5)[i]),*(__m128i*)&conjugate2[0]);
    *&(((__m128i*)z6)[i])=_mm_sign_epi16(*&(((__m128i*)z6)[i]),*(__m128i*)&conjugate2[0]);
    *&(((__m128i*)z7)[i])=_mm_sign_epi16(*&(((__m128i*)z7)[i]),*(__m128i*)&conjugate2[0]);
    *&(((__m128i*)z8)[i])=_mm_sign_epi16(*&(((__m128i*)z8)[i]),*(__m128i*)&conjugate2[0]);
    *&(((__m128i*)z9)[i])=_mm_sign_epi16(*&(((__m128i*)z9)[i]),*(__m128i*)&conjugate2[0]);
    if (frame_parms->Ncp==0) {
      *&(((__m128i*)z10)[i])=_mm_sign_epi16(*&(((__m128i*)z10)[i]),*(__m128i*)&conjugate2[0]);
      *&(((__m128i*)z11)[i])=_mm_sign_epi16(*&(((__m128i*)z11)[i]),*(__m128i*)&conjugate2[0]);
    }
  } 
  
  for (i=0,ip=0;i<Msc_PUSCH;i++,ip+=4) { 
    ((uint32_t*)idft_in0)[ip+0] =  z0[i];
    ((uint32_t*)idft_in0)[ip+1] =  z1[i];
    ((uint32_t*)idft_in0)[ip+2] =  z2[i];
    ((uint32_t*)idft_in0)[ip+3] =  z3[i];
    ((uint32_t*)idft_in1)[ip+0] =  z4[i];
    ((uint32_t*)idft_in1)[ip+1] =  z5[i];
    ((uint32_t*)idft_in1)[ip+2] =  z6[i];
    ((uint32_t*)idft_in1)[ip+3] =  z7[i];
    ((uint32_t*)idft_in2)[ip+0] =  z8[i];
    ((uint32_t*)idft_in2)[ip+1] =  z9[i];
    if (frame_parms->Ncp==0) {
      ((uint32_t*)idft_in2)[ip+2] =  z10[i];
      ((uint32_t*)idft_in2)[ip+3] =  z11[i];
    }
  }
  
  
  switch (Msc_PUSCH) {
  case 12:
    dft12((int16_t *)idft_in0,(int16_t *)idft_out0);
    dft12((int16_t *)idft_in1,(int16_t *)idft_out1);
    dft12((int16_t *)idft_in2,(int16_t *)idft_out2);

    /*
    dft12f(&((__m128i *)idft_in0)[0],&((__m128i *)idft_in0)[1],&((__m128i *)idft_in0)[2],&((__m128i *)idft_in0)[3],&((__m128i *)idft_in0)[4],&((__m128i *)idft_in0)[5],&((__m128i *)idft_in0)[6],&((__m128i *)idft_in0)[7],&((__m128i *)idft_in0)[8],&((__m128i *)idft_in0)[9],&((__m128i *)idft_in0)[10],&((__m128i *)idft_in0)[11],
	  &((__m128i *)idft_out0)[0],&((__m128i *)idft_out0)[1],&((__m128i *)idft_out0)[2],&((__m128i *)idft_out0)[3],&((__m128i *)idft_out0)[4],&((__m128i *)idft_out0)[5],&((__m128i *)idft_out0)[6],&((__m128i *)idft_out0)[7],&((__m128i *)idft_out0)[8],&((__m128i *)idft_out0)[9],&((__m128i *)idft_out0)[10],&((__m128i *)idft_out0)[11]);

    dft12f(&((__m128i *)idft_in1)[0],&((__m128i *)idft_in1)[1],&((__m128i *)idft_in1)[2],&((__m128i *)idft_in1)[3],&((__m128i *)idft_in1)[4],&((__m128i *)idft_in1)[5],&((__m128i *)idft_in1)[6],&((__m128i *)idft_in1)[7],&((__m128i *)idft_in1)[8],&((__m128i *)idft_in1)[9],&((__m128i *)idft_in1)[10],&((__m128i *)idft_in1)[11],
	  &((__m128i *)idft_out1)[0],&((__m128i *)idft_out1)[1],&((__m128i *)idft_out1)[2],&((__m128i *)idft_out1)[3],&((__m128i *)idft_out1)[4],&((__m128i *)idft_out1)[5],&((__m128i *)idft_out1)[6],&((__m128i *)idft_out1)[7],&((__m128i *)idft_out1)[8],&((__m128i *)idft_out1)[9],&((__m128i *)idft_out1)[10],&((__m128i *)idft_out1)[11]);

    dft12f(&((__m128i *)idft_in2)[0],&((__m128i *)idft_in2)[1],&((__m128i *)idft_in2)[2],&((__m128i *)idft_in2)[3],&((__m128i *)idft_in2)[4],&((__m128i *)idft_in2)[5],&((__m128i *)idft_in2)[6],&((__m128i *)idft_in2)[7],&((__m128i *)idft_in2)[8],&((__m128i *)idft_in2)[9],&((__m128i *)idft_in2)[10],&((__m128i *)idft_in2)[11],
	  &((__m128i *)idft_out2)[0],&((__m128i *)idft_out2)[1],&((__m128i *)idft_out2)[2],&((__m128i *)idft_out2)[3],&((__m128i *)idft_out2)[4],&((__m128i *)idft_out2)[5],&((__m128i *)idft_out2)[6],&((__m128i *)idft_out2)[7],&((__m128i *)idft_out2)[8],&((__m128i *)idft_out2)[9],&((__m128i *)idft_out2)[10],&((__m128i *)idft_out2)[11]);
    */

    norm128 = _mm_set1_epi16(9459);
    
    for (i=0;i<12;i++) {
      ((__m128i*)idft_out0)[i] = _mm_slli_epi16(_mm_mulhi_epi16(((__m128i*)idft_out0)[i],norm128),1);
      ((__m128i*)idft_out1)[i] = _mm_slli_epi16(_mm_mulhi_epi16(((__m128i*)idft_out1)[i],norm128),1);
      ((__m128i*)idft_out2)[i] = _mm_slli_epi16(_mm_mulhi_epi16(((__m128i*)idft_out2)[i],norm128),1);
    }

    break;
  case 24:
    dft24(idft_in0,idft_out0,1);
    dft24(idft_in1,idft_out1,1);
    dft24(idft_in2,idft_out2,1);
    break;
  case 36:
    dft36(idft_in0,idft_out0,1);
    dft36(idft_in1,idft_out1,1);
    dft36(idft_in2,idft_out2,1);
    break;
  case 48:
    dft48(idft_in0,idft_out0,1);
    dft48(idft_in1,idft_out1,1);
    dft48(idft_in2,idft_out2,1);
    break;
  case 60:
    dft60(idft_in0,idft_out0,1);
    dft60(idft_in1,idft_out1,1);
    dft60(idft_in2,idft_out2,1);
    break;
  case 72:
    dft72(idft_in0,idft_out0,1);
    dft72(idft_in1,idft_out1,1);
    dft72(idft_in2,idft_out2,1);
    break;
  case 96:
    dft96(idft_in0,idft_out0,1);
    dft96(idft_in1,idft_out1,1);
    dft96(idft_in2,idft_out2,1);
    break;
  case 108:
    dft108(idft_in0,idft_out0,1);
    dft108(idft_in1,idft_out1,1);
    dft108(idft_in2,idft_out2,1);
    break;
  case 120:
    dft120(idft_in0,idft_out0,1);
    dft120(idft_in1,idft_out1,1);
    dft120(idft_in2,idft_out2,1);
    break;
  case 144:
    dft144(idft_in0,idft_out0,1);
    dft144(idft_in1,idft_out1,1);
    dft144(idft_in2,idft_out2,1);
    break;
  case 180:
    dft180(idft_in0,idft_out0,1);
    dft180(idft_in1,idft_out1,1);
    dft180(idft_in2,idft_out2,1);
    break;
  case 192:
    dft192(idft_in0,idft_out0,1);
    dft192(idft_in1,idft_out1,1);
    dft192(idft_in2,idft_out2,1);
    break;
  case 216:
    dft216(idft_in0,idft_out0,1);
    dft216(idft_in1,idft_out1,1);
    dft216(idft_in2,idft_out2,1);
    break;
  case 240:
    dft240(idft_in0,idft_out0,1);
    dft240(idft_in1,idft_out1,1);
    dft240(idft_in2,idft_out2,1);
    break;
  case 288:
    dft288(idft_in0,idft_out0,1);
Raymond Knopp's avatar
updates to UL (DFTs for 10/20 MHz), Ndi toggling, DCI structures  
Raymond Knopp committed
237 
    dft288(idft_in1,idft_out1,1);
Cedric Roux's avatar
- Fix: avoid infinite loop on mulitcast read thread if no data to read  
Cedric Roux committed
238 239 
    dft288(idft_in2,idft_out2,1);
    break;
Raymond Knopp's avatar
updates to UL (DFTs for 10/20 MHz), Ndi toggling, DCI structures  
Raymond Knopp committed
240 
  case 300:
Cedric Roux's avatar
- Fix: avoid infinite loop on mulitcast read thread if no data to read  
Cedric Roux committed
241 242 243 244 
    dft300(idft_in0,idft_out0,1);
    dft300(idft_in1,idft_out1,1);
    dft300(idft_in2,idft_out2,1);
    break;
Raymond Knopp's avatar
updates to UL (DFTs for 10/20 MHz), Ndi toggling, DCI structures  
Raymond Knopp committed
245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 
  case 324:
    dft324((int16_t*)idft_in0,(int16_t*)idft_out0,1);
    dft324((int16_t*)idft_in1,(int16_t*)idft_out1,1);
    dft324((int16_t*)idft_in2,(int16_t*)idft_out2,1);
    break;
  case 360:
    dft360((int16_t*)idft_in0,(int16_t*)idft_out0,1);
    dft360((int16_t*)idft_in1,(int16_t*)idft_out1,1);
    dft360((int16_t*)idft_in2,(int16_t*)idft_out2,1);
    break;
  case 384:
    dft384((int16_t*)idft_in0,(int16_t*)idft_out0,1);
    dft384((int16_t*)idft_in1,(int16_t*)idft_out1,1);
    dft384((int16_t*)idft_in2,(int16_t*)idft_out2,1);
    break;
  case 432:
    dft432((int16_t*)idft_in0,(int16_t*)idft_out0,1);
    dft432((int16_t*)idft_in1,(int16_t*)idft_out1,1);
    dft432((int16_t*)idft_in2,(int16_t*)idft_out2,1);
    break;
  case 480:
    dft480((int16_t*)idft_in0,(int16_t*)idft_out0,1);
    dft480((int16_t*)idft_in1,(int16_t*)idft_out1,1);
    dft480((int16_t*)idft_in2,(int16_t*)idft_out2,1);
    break;
  case 540:
    dft540((int16_t*)idft_in0,(int16_t*)idft_out0,1);
    dft540((int16_t*)idft_in1,(int16_t*)idft_out1,1);
    dft540((int16_t*)idft_in2,(int16_t*)idft_out2,1);
    break;
  case 576:
    dft576((int16_t*)idft_in0,(int16_t*)idft_out0,1);
    dft576((int16_t*)idft_in1,(int16_t*)idft_out1,1);
    dft576((int16_t*)idft_in2,(int16_t*)idft_out2,1);
    break;
  case 600:
    dft600((int16_t*)idft_in0,(int16_t*)idft_out0,1);
    dft600((int16_t*)idft_in1,(int16_t*)idft_out1,1);
    dft600((int16_t*)idft_in2,(int16_t*)idft_out2,1);
    break;
  case 648:
    dft648((int16_t*)idft_in0,(int16_t*)idft_out0,1);
    dft648((int16_t*)idft_in1,(int16_t*)idft_out1,1);
    dft648((int16_t*)idft_in2,(int16_t*)idft_out2,1);
    break;
  case 720:
    dft720((int16_t*)idft_in0,(int16_t*)idft_out0,1);
    dft720((int16_t*)idft_in1,(int16_t*)idft_out1,1);
    dft720((int16_t*)idft_in2,(int16_t*)idft_out2,1);
    break;
  case 864:
    dft864((int16_t*)idft_in0,(int16_t*)idft_out0,1);
    dft864((int16_t*)idft_in1,(int16_t*)idft_out1,1);
    dft864((int16_t*)idft_in2,(int16_t*)idft_out2,1);
    break;
  case 900:
    dft900((int16_t*)idft_in0,(int16_t*)idft_out0,1);
    dft900((int16_t*)idft_in1,(int16_t*)idft_out1,1);
    dft900((int16_t*)idft_in2,(int16_t*)idft_out2,1);
    break;
  case 960:
    dft960((int16_t*)idft_in0,(int16_t*)idft_out0,1);
    dft960((int16_t*)idft_in1,(int16_t*)idft_out1,1);
    dft960((int16_t*)idft_in2,(int16_t*)idft_out2,1);
    break;
  case 972:
    dft972((int16_t*)idft_in0,(int16_t*)idft_out0,1);
    dft972((int16_t*)idft_in1,(int16_t*)idft_out1,1);
    dft972((int16_t*)idft_in2,(int16_t*)idft_out2,1);
    break;
  case 1080:
    dft1080((int16_t*)idft_in0,(int16_t*)idft_out0,1);
    dft1080((int16_t*)idft_in1,(int16_t*)idft_out1,1);
    dft1080((int16_t*)idft_in2,(int16_t*)idft_out2,1);
    break;
  case 1152:
    dft1152((int16_t*)idft_in0,(int16_t*)idft_out0,1);
    dft1152((int16_t*)idft_in1,(int16_t*)idft_out1,1);
    dft1152((int16_t*)idft_in2,(int16_t*)idft_out2,1);
    break;
Cedric Roux's avatar
- Fix: avoid infinite loop on mulitcast read thread if no data to read  
Cedric Roux committed
325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 360 361 362 363 364 365 366 367 368 369 370 371 372 373 374 375 376 377 378 379 380 381 382 383 384 385 386 387 388 389 390 391 392 393 394 395 396 397 398 399 400 401 402 403 404 405 406 407 408 409 410 411 412 413 414 415 416 417 418 419 420 421 422 423 424 425 426 427 428 429 430 431 432 433 434 435 436 437 438 439 440 441 442 443 444 445 446 447 448 449 450 451 452 453 454 455 456 457 458 459 460 461 462 463 464 465 466 467 468 469 470 471 472 473 474 475 476 477 478 479 480 481 482 483 484 485 486 487 488 489 490 491 492 493 494 495 496 497 498 499 500 501 502 503 504 505 506 507 508 509 510 511 512 513 514 515 516 517 518 519 520 521 522 523 524 525 526 527 528 529 530 531 532 533 534 535 536 537 538 539 540 541 542 543 544 545 546 547 548 549 550 551 552 553 554 555 556 557 558 559 560 561 562 563 564 565 566 567 568 569 570 571 572 573 574 575 576 577 578 579 580 
  case 1200:
    dft1200(idft_in0,idft_out0,1);
    dft1200(idft_in1,idft_out1,1);
    dft1200(idft_in2,idft_out2,1);
    break;
    
  }

    

  for (i=0,ip=0;i<Msc_PUSCH;i++,ip+=4) {
    z0[i]     = ((uint32_t*)idft_out0)[ip];
    /*
      printf("out0 (%d,%d),(%d,%d),(%d,%d),(%d,%d)\n",
      ((int16_t*)&idft_out0[ip])[0],((int16_t*)&idft_out0[ip])[1],
      ((int16_t*)&idft_out0[ip+1])[0],((int16_t*)&idft_out0[ip+1])[1],
      ((int16_t*)&idft_out0[ip+2])[0],((int16_t*)&idft_out0[ip+2])[1],
      ((int16_t*)&idft_out0[ip+3])[0],((int16_t*)&idft_out0[ip+3])[1]);
    */
    z1[i]     = ((uint32_t*)idft_out0)[ip+1]; 
    z2[i]     = ((uint32_t*)idft_out0)[ip+2]; 
    z3[i]     = ((uint32_t*)idft_out0)[ip+3]; 
    z4[i]     = ((uint32_t*)idft_out1)[ip+0]; 
    z5[i]     = ((uint32_t*)idft_out1)[ip+1]; 
    z6[i]     = ((uint32_t*)idft_out1)[ip+2]; 
    z7[i]     = ((uint32_t*)idft_out1)[ip+3]; 
    z8[i]     = ((uint32_t*)idft_out2)[ip]; 
    z9[i]     = ((uint32_t*)idft_out2)[ip+1]; 
    if (frame_parms->Ncp==0) {
      z10[i]    = ((uint32_t*)idft_out2)[ip+2]; 
      z11[i]    = ((uint32_t*)idft_out2)[ip+3];
    }
  }
  
  // conjugate output
  for (i=0;i<(Msc_PUSCH>>2);i++) {
    ((__m128i*)z0)[i]=_mm_sign_epi16(((__m128i*)z0)[i],*(__m128i*)&conjugate2[0]);
    ((__m128i*)z1)[i]=_mm_sign_epi16(((__m128i*)z1)[i],*(__m128i*)&conjugate2[0]);
    ((__m128i*)z2)[i]=_mm_sign_epi16(((__m128i*)z2)[i],*(__m128i*)&conjugate2[0]);
    ((__m128i*)z3)[i]=_mm_sign_epi16(((__m128i*)z3)[i],*(__m128i*)&conjugate2[0]);
    ((__m128i*)z4)[i]=_mm_sign_epi16(((__m128i*)z4)[i],*(__m128i*)&conjugate2[0]);
    ((__m128i*)z5)[i]=_mm_sign_epi16(((__m128i*)z5)[i],*(__m128i*)&conjugate2[0]);
    ((__m128i*)z6)[i]=_mm_sign_epi16(((__m128i*)z6)[i],*(__m128i*)&conjugate2[0]);
    ((__m128i*)z7)[i]=_mm_sign_epi16(((__m128i*)z7)[i],*(__m128i*)&conjugate2[0]);
    ((__m128i*)z8)[i]=_mm_sign_epi16(((__m128i*)z8)[i],*(__m128i*)&conjugate2[0]);
    ((__m128i*)z9)[i]=_mm_sign_epi16(((__m128i*)z9)[i],*(__m128i*)&conjugate2[0]);
    if (frame_parms->Ncp==0) {
      ((__m128i*)z10)[i]=_mm_sign_epi16(((__m128i*)z10)[i],*(__m128i*)&conjugate2[0]);
      ((__m128i*)z11)[i]=_mm_sign_epi16(((__m128i*)z11)[i],*(__m128i*)&conjugate2[0]);
    }
  }

}
#endif





int32_t ulsch_qpsk_llr(LTE_DL_FRAME_PARMS *frame_parms,
		   int32_t **rxdataF_comp,
		   int16_t *ulsch_llr,
		   uint8_t symbol,
		   uint16_t nb_rb,
		   int16_t **llrp) {

  __m128i *rxF=(__m128i*)&rxdataF_comp[0][(symbol*frame_parms->N_RB_DL*12)];
  int32_t i;
  __m128i **llrp128 = (__m128i **)llrp;

  //  printf("qpsk llr for symbol %d (pos %d), llr offset %d\n",symbol,(symbol*frame_parms->N_RB_DL*12),llr128U-(__m128i*)ulsch_llr);

  for (i=0;i<(nb_rb*3);i++) {
    //printf("%d,%d,%d,%d,%d,%d,%d,%d\n",((int16_t *)rxF)[0],((int16_t *)rxF)[1],((int16_t *)rxF)[2],((int16_t *)rxF)[3],((int16_t *)rxF)[4],((int16_t *)rxF)[5],((int16_t *)rxF)[6],((int16_t *)rxF)[7]);
    *(*llrp128) = *rxF;
    rxF++;
    (*llrp128)++;
  }

  _mm_empty();
  _m_empty();

  return(0);

}

void ulsch_16qam_llr(LTE_DL_FRAME_PARMS *frame_parms,
		     int32_t **rxdataF_comp,
		     int16_t *ulsch_llr,
		     int32_t **ul_ch_mag,
		     uint8_t symbol,
		     uint16_t nb_rb,
		     int16_t **llrp) {

  __m128i *rxF=(__m128i*)&rxdataF_comp[0][(symbol*frame_parms->N_RB_DL*12)];
  __m128i *ch_mag;
  __m128i mmtmpU0;
  __m128i **llrp128=(__m128i **)llrp;

  int32_t i;
  //  uint8_t symbol_mod;

  //  printf("ulsch_rx.c: ulsch_16qam_llr: symbol %d\n",symbol);

  //  symbol_mod = (symbol>=(7-frame_parms->Ncp)) ? symbol-(7-frame_parms->Ncp) : symbol;

  ch_mag =(__m128i*)&ul_ch_mag[0][(symbol*frame_parms->N_RB_DL*12)];


  for (i=0;i<(nb_rb*3);i++) {


    mmtmpU0 = _mm_abs_epi16(rxF[i]);
    //    print_shorts("tmp0",&tmp0);

    mmtmpU0 = _mm_subs_epi16(ch_mag[i],mmtmpU0);


    (*llrp128)[0] = _mm_unpacklo_epi32(rxF[i],mmtmpU0);
    (*llrp128)[1] = _mm_unpackhi_epi32(rxF[i],mmtmpU0);
    (*llrp128)+=2;

    //    print_bytes("rxF[i]",&rxF[i]);
    //    print_bytes("rxF[i+1]",&rxF[i+1]);
  }

  _mm_empty();
  _m_empty();

}

void ulsch_64qam_llr(LTE_DL_FRAME_PARMS *frame_parms,
		     int32_t **rxdataF_comp,
		     int16_t *ulsch_llr,
		     int32_t **ul_ch_mag,
		     int32_t **ul_ch_magb,
		     uint8_t symbol,
		     uint16_t nb_rb,
		     int16_t **llrp) {

  __m128i *rxF=(__m128i*)&rxdataF_comp[0][(symbol*frame_parms->N_RB_DL*12)];
  __m128i *ch_mag,*ch_magb;
  int32_t i;
  __m128i mmtmpU1,mmtmpU2;
  int32_t **llrp32=(int32_t **)llrp;

  //  uint8_t symbol_mod;



  //  symbol_mod = (symbol>=(7-frame_parms->Ncp)) ? symbol-(7-frame_parms->Ncp) : symbol;

  ch_mag =(__m128i*)&ul_ch_mag[0][(symbol*frame_parms->N_RB_DL*12)];
  ch_magb =(__m128i*)&ul_ch_magb[0][(symbol*frame_parms->N_RB_DL*12)];

  //  printf("symbol %d: mag %d, magb %d\n",symbol,_mm_extract_epi16(ch_mag[0],0),_mm_extract_epi16(ch_magb[0],0));
  for (i=0;i<(nb_rb*3);i++) {



    mmtmpU1 = _mm_abs_epi16(rxF[i]);

    mmtmpU1  = _mm_subs_epi16(ch_mag[i],mmtmpU1);

    mmtmpU2 = _mm_abs_epi16(mmtmpU1);
    mmtmpU2 = _mm_subs_epi16(ch_magb[i],mmtmpU2);

    (*llrp32)[0]  = _mm_extract_epi32(rxF[i],0);
    (*llrp32)[1]  = _mm_extract_epi32(mmtmpU1,0);
    (*llrp32)[2]  = _mm_extract_epi32(mmtmpU2,0);
    (*llrp32)[3]  = _mm_extract_epi32(rxF[i],1);
    (*llrp32)[4]  = _mm_extract_epi32(mmtmpU1,1);
    (*llrp32)[5]  = _mm_extract_epi32(mmtmpU2,1);
    (*llrp32)[6]  = _mm_extract_epi32(rxF[i],2);
    (*llrp32)[7]  = _mm_extract_epi32(mmtmpU1,2);
    (*llrp32)[8]  = _mm_extract_epi32(mmtmpU2,2);
    (*llrp32)[9]  = _mm_extract_epi32(rxF[i],3);
    (*llrp32)[10] = _mm_extract_epi32(mmtmpU1,3);
    (*llrp32)[11] = _mm_extract_epi32(mmtmpU2,3);
    (*llrp32)+=12;
  }

  _mm_empty();
  _m_empty();

}

void ulsch_detection_mrc(LTE_DL_FRAME_PARMS *frame_parms,
			 int32_t **rxdataF_comp,
			 int32_t **ul_ch_mag,
			 int32_t **ul_ch_magb,
			 uint8_t symbol,
			 uint16_t nb_rb) {



  __m128i *rxdataF_comp128_0,*ul_ch_mag128_0,*ul_ch_mag128_0b;
  __m128i *rxdataF_comp128_1,*ul_ch_mag128_1,*ul_ch_mag128_1b;

  int32_t i;

  if (frame_parms->nb_antennas_rx>1) {
    rxdataF_comp128_0   = (__m128i *)&rxdataF_comp[0][symbol*frame_parms->N_RB_DL*12];  
    rxdataF_comp128_1   = (__m128i *)&rxdataF_comp[1][symbol*frame_parms->N_RB_DL*12];  
    ul_ch_mag128_0      = (__m128i *)&ul_ch_mag[0][symbol*frame_parms->N_RB_DL*12];  
    ul_ch_mag128_1      = (__m128i *)&ul_ch_mag[1][symbol*frame_parms->N_RB_DL*12];  
    ul_ch_mag128_0b     = (__m128i *)&ul_ch_magb[0][symbol*frame_parms->N_RB_DL*12];  
    ul_ch_mag128_1b     = (__m128i *)&ul_ch_magb[1][symbol*frame_parms->N_RB_DL*12];  

    // MRC on each re of rb, both on MF output and magnitude (for 16QAM/64QAM llr computation)
    for (i=0;i<nb_rb*3;i++) {
      rxdataF_comp128_0[i] = _mm_adds_epi16(_mm_srai_epi16(rxdataF_comp128_0[i],1),_mm_srai_epi16(rxdataF_comp128_1[i],1));
      ul_ch_mag128_0[i]    = _mm_adds_epi16(_mm_srai_epi16(ul_ch_mag128_0[i],1),_mm_srai_epi16(ul_ch_mag128_1[i],1));
      ul_ch_mag128_0b[i]   = _mm_adds_epi16(_mm_srai_epi16(ul_ch_mag128_0b[i],1),_mm_srai_epi16(ul_ch_mag128_1b[i],1));
      rxdataF_comp128_0[i] = _mm_add_epi16(rxdataF_comp128_0[i],(*(__m128i*)&jitterc[0]));
    }
    // remove any bias (DC component after IDFT)
    //    ((uint32_t*)rxdataF_comp128_0)[0]=0;
  }

  _mm_empty();
  _m_empty();

}

void ulsch_extract_rbs_single(int32_t **rxdataF,
			      int32_t **rxdataF_ext,
			      uint32_t first_rb,
			      uint32_t nb_rb,
			      uint8_t l,
			      uint8_t Ns,
			      LTE_DL_FRAME_PARMS *frame_parms) {


  uint16_t nb_rb1,nb_rb2;
  uint8_t aarx;
  int32_t *rxF,*rxF_ext;
  
  //uint8_t symbol = l+Ns*frame_parms->symbols_per_tti/2;
  uint8_t symbol = l+((7-frame_parms->Ncp)*(Ns&1)); ///symbol within sub-frame

  for (aarx=0;aarx<frame_parms->nb_antennas_rx;aarx++) {


    nb_rb1 = cmin(cmax((int)(frame_parms->N_RB_UL) - (int)(2*first_rb),(int)0),(int)(2*nb_rb));    // 2 times no. RBs before the DC
    nb_rb2 = 2*nb_rb - nb_rb1;                                   // 2 times no. RBs after the DC

#ifdef DEBUG_ULSCH
    msg("ulsch_extract_rbs_single: 2*nb_rb1 = %d, 2*nb_rb2 = %d\n",nb_rb1,nb_rb2);
#endif

    rxF_ext   = &rxdataF_ext[aarx][(symbol*frame_parms->N_RB_UL*12)];
    if (nb_rb1) {
      rxF = &rxdataF[aarx][(first_rb*12 + frame_parms->first_carrier_offset + symbol*frame_parms->ofdm_symbol_size)];
      memcpy(rxF_ext, rxF, nb_rb1*6*sizeof(int));
      rxF_ext += nb_rb1*6;
Raymond Knopp's avatar
 
Raymond Knopp committed
581
Cedric Roux's avatar
- Fix: avoid infinite loop on mulitcast read thread if no data to read  
Cedric Roux committed
582 583 584 585 586 587 588 589 590 591 592 593 594 595 596 597 598 599 600 601 602 603 604 605 606 607 608 609 610 611 612 613 614 615 616 617 618 619 620 621 622 623 624 625 626 627 628 629 630 631 632 633 634 635 636 637 638 639 640 641 642 643 644 645 646 647 648 649 650 651 652 653 654 655 656 657 658 659 660 661 662 663 664 665 666 667 668 669 670 671 672 673 674 675 676 677 678 679 680 681 682 683 684 685 686 687 688 689 690 691 692 693 694 695 696 697 698 699 700 701 702 703 704 705 706 707 708 709 710 711 712 713 714 715 716 717 718 719 720 721 722 723 724 725 726 727 728 729 730 731 732 733 
      if (nb_rb2)  {
	//#ifdef OFDMA_ULSCH
	//	rxF = &rxdataF[aarx][(1 + symbol*frame_parms->ofdm_symbol_size)*2];
	//#else
	rxF = &rxdataF[aarx][(symbol*frame_parms->ofdm_symbol_size)];
	//#endif
	memcpy(rxF_ext, rxF, nb_rb2*6*sizeof(int));
	rxF_ext += nb_rb2*6;
      } 
    }
    else { //there is only data in the second half
      //#ifdef OFDMA_ULSCH
      //      rxF = &rxdataF[aarx][(1 + 6*(2*first_rb - frame_parms->N_RB_UL) + symbol*frame_parms->ofdm_symbol_size)*2];
      //#else
      rxF = &rxdataF[aarx][(6*(2*first_rb - frame_parms->N_RB_UL) + symbol*frame_parms->ofdm_symbol_size)];
      //#endif
      memcpy(rxF_ext, rxF, nb_rb2*6*sizeof(int));
      rxF_ext += nb_rb2*6;
    }
  }

  _mm_empty();
  _m_empty();

}

void ulsch_correct_ext(int32_t **rxdataF_ext,
		       int32_t **rxdataF_ext2,
		       uint16_t symbol,
		       LTE_DL_FRAME_PARMS *frame_parms,
		       uint16_t nb_rb) {

  int32_t i,j,aarx;
  int32_t *rxF_ext2,*rxF_ext;

  for (aarx=0;aarx<frame_parms->nb_antennas_rx;aarx++) {
    rxF_ext2 = &rxdataF_ext2[aarx][symbol*12*frame_parms->N_RB_UL];
    rxF_ext  = &rxdataF_ext[aarx][2*symbol*12*frame_parms->N_RB_UL];

    for (i=0,j=0;i<12*nb_rb;i++,j+=2) {
      rxF_ext2[i] = rxF_ext[j]; 
    }
  }
}



void ulsch_channel_compensation(int32_t **rxdataF_ext,
				int32_t **ul_ch_estimates_ext,
				int32_t **ul_ch_mag,
				int32_t **ul_ch_magb,
				int32_t **rxdataF_comp,
				LTE_DL_FRAME_PARMS *frame_parms,
				uint8_t symbol,
				uint8_t Qm,
				uint16_t nb_rb,
				uint8_t output_shift) {
  
  uint16_t rb;
  __m128i *ul_ch128,*ul_ch_mag128,*ul_ch_mag128b,*rxdataF128,*rxdataF_comp128;
  uint8_t aarx;//,symbol_mod;
  __m128i mmtmpU0,mmtmpU1,mmtmpU2,mmtmpU3;
#ifdef OFDMA_ULSCH
  __m128i QAM_amp128U,QAM_amp128bU;
#endif
  //  symbol_mod = (symbol>=(7-frame_parms->Ncp)) ? symbol-(7-frame_parms->Ncp) : symbol;

  //    printf("comp: symbol %d\n",symbol);

#ifdef ULSCH_OFDMA  
  if (Qm == 4)
    QAM_amp128U = _mm_set1_epi16(QAM16_n1);
  else if (Qm == 6) {
    QAM_amp128U  = _mm_set1_epi16(QAM64_n1);
    QAM_amp128bU = _mm_set1_epi16(QAM64_n2);
  }
#endif
  for (aarx=0;aarx<frame_parms->nb_antennas_rx;aarx++) {
    
    ul_ch128          = (__m128i *)&ul_ch_estimates_ext[aarx][symbol*frame_parms->N_RB_DL*12];
    ul_ch_mag128      = (__m128i *)&ul_ch_mag[aarx][symbol*frame_parms->N_RB_DL*12];
    ul_ch_mag128b     = (__m128i *)&ul_ch_magb[aarx][symbol*frame_parms->N_RB_DL*12];
    rxdataF128        = (__m128i *)&rxdataF_ext[aarx][symbol*frame_parms->N_RB_DL*12];
    rxdataF_comp128   = (__m128i *)&rxdataF_comp[aarx][symbol*frame_parms->N_RB_DL*12];


    for (rb=0;rb<nb_rb;rb++) {
      //            printf("comp: symbol %d rb %d\n",symbol,rb);
#ifdef OFDMA_ULSCH
      if (Qm>2) {  
	// get channel amplitude if not QPSK

	mmtmpU0 = _mm_madd_epi16(ul_ch128[0],ul_ch128[0]);
	
	mmtmpU0 = _mm_srai_epi32(mmtmpU0,output_shift);
	
	mmtmpU1 = _mm_madd_epi16(ul_ch128[1],ul_ch128[1]);
	mmtmpU1 = _mm_srai_epi32(mmtmpU1,output_shift);
	mmtmpU0 = _mm_packs_epi32(mmtmpU0,mmtmpU1);
	
	ul_ch_mag128[0] = _mm_unpacklo_epi16(mmtmpU0,mmtmpU0);
	ul_ch_mag128b[0] = ul_ch_mag128[0];
	ul_ch_mag128[0] = _mm_mulhi_epi16(ul_ch_mag128[0],QAM_amp128U);
	ul_ch_mag128[0] = _mm_slli_epi16(ul_ch_mag128[0],2);  // 2 to compensate the scale channel estimate
	ul_ch_mag128[1] = _mm_unpackhi_epi16(mmtmpU0,mmtmpU0);
	ul_ch_mag128b[1] = ul_ch_mag128[1];
	ul_ch_mag128[1] = _mm_mulhi_epi16(ul_ch_mag128[1],QAM_amp128U);
	ul_ch_mag128[1] = _mm_slli_epi16(ul_ch_mag128[1],2);  // 2 to compensate the scale channel estimate
	
	mmtmpU0 = _mm_madd_epi16(ul_ch128[2],ul_ch128[2]);
	mmtmpU0 = _mm_srai_epi32(mmtmpU0,output_shift);
	mmtmpU1 = _mm_packs_epi32(mmtmpU0,mmtmpU0);
	
	ul_ch_mag128[2] = _mm_unpacklo_epi16(mmtmpU1,mmtmpU1);
	ul_ch_mag128b[2] = ul_ch_mag128[2];
	
	ul_ch_mag128[2] = _mm_mulhi_epi16(ul_ch_mag128[2],QAM_amp128U);
	ul_ch_mag128[2] = _mm_slli_epi16(ul_ch_mag128[2],2); // 2 to compensate the scale channel estimate	  
	
	
	ul_ch_mag128b[0] = _mm_mulhi_epi16(ul_ch_mag128b[0],QAM_amp128bU);
	ul_ch_mag128b[0] = _mm_slli_epi16(ul_ch_mag128b[0],2); // 2 to compensate the scale channel estimate
	
	
	ul_ch_mag128b[1] = _mm_mulhi_epi16(ul_ch_mag128b[1],QAM_amp128bU);
	ul_ch_mag128b[1] = _mm_slli_epi16(ul_ch_mag128b[1],2); // 2 to compensate the scale channel estimate
	
	ul_ch_mag128b[2] = _mm_mulhi_epi16(ul_ch_mag128b[2],QAM_amp128bU);
	ul_ch_mag128b[2] = _mm_slli_epi16(ul_ch_mag128b[2],2);// 2 to compensate the scale channel estimate	   
	
      }
      
#else

	mmtmpU0 = _mm_madd_epi16(ul_ch128[0],ul_ch128[0]);

	mmtmpU0 = _mm_srai_epi32(mmtmpU0,output_shift);
	mmtmpU1 = _mm_madd_epi16(ul_ch128[1],ul_ch128[1]);

	mmtmpU1 = _mm_srai_epi32(mmtmpU1,output_shift);

	mmtmpU0 = _mm_packs_epi32(mmtmpU0,mmtmpU1);
	
	ul_ch_mag128[0] = _mm_unpacklo_epi16(mmtmpU0,mmtmpU0);
	ul_ch_mag128[1] = _mm_unpackhi_epi16(mmtmpU0,mmtmpU0);
	
	mmtmpU0 = _mm_madd_epi16(ul_ch128[2],ul_ch128[2]);

	mmtmpU0 = _mm_srai_epi32(mmtmpU0,output_shift);
	mmtmpU1 = _mm_packs_epi32(mmtmpU0,mmtmpU0);
	ul_ch_mag128[2] = _mm_unpacklo_epi16(mmtmpU1,mmtmpU1);
Raymond Knopp's avatar
 
Raymond Knopp committed
734 
	// printf("comp: symbol %d rb %d => %d,%d,%d (output_shift %d)\n",symbol,rb,*((int16_t*)&ul_ch_mag128[0]),*((int16_t*)&ul_ch_mag128[1]),*((int16_t*)&ul_ch_mag128[2]),output_shift);
Cedric Roux's avatar
- Fix: avoid infinite loop on mulitcast read thread if no data to read  
Cedric Roux committed
735 736 737 738 739 740 741 742 743 744 745 746 747 748 749 750 751 752 753 754 755 756 757 758 759 760 761 762 763 764 765 766 767 768 769 770 771 772 773 774 775 776 777 778 779 780 781 782 783 784 785 786 787 788 789 790 791 792 793 794 795 796 797 798 799 800 801 802 803 804 805 806 807 808 809 810 811 812 813 814 815 816 817 818 819 820 821 822 823 824 825 826 827 828 829 830 831 832 833 834 835 836 837 838 839 840 841 842 843 844 845 846 847 848 849 850 851 852 853 854 855 856 857 858 859 860 861 862 863 864 865 866 867 868 869 870 871 872 873 874 875 876 877 878 879 880 881 882 883 884 885 886 887 888 889 890 891 892 893 894 895 896 897 898 899 900 901 902 903 904 905 906 907 908 909 910 911 912 913 914 915 916 917 918 919 920 921 922 923 924 925 926 927 928 929 930 931 932 933 934 935 936 937 938 939 940 941 942 943 944 945 946 947 948 949 950 951 952 953 954 955 956 957 958 959 960 961 962 963 964 965 966 967 968 969 970 971 972 973 974 975 976 977 978 979 980 981 982 983 984 985 986 987 988 989 990 991 992 993 994 995 996 997 998 999 1000 1001 1002 1003 1004 1005 1006 1007 1008 1009 1010 1011 1012 1013 1014 1015 1016 1017 1018 1019 1020 1021 1022 1023 1024 1025 1026 1027 1028 1029 1030 1031 1032 1033 1034 1035 1036 1037 1038 1039 1040 1041 1042 1043 1044 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 1160 1161 1162 1163 1164 1165 1166 1167 1168 1169 1170 1171 1172 1173 1174 1175 1176 1177 1178 1179 1180 1181 1182 1183 1184 1185 1186 1187 1188 1189 1190 1191 1192 1193 1194 1195 1196 1197 1198 
#endif  
              
      // multiply by conjugated channel
      mmtmpU0 = _mm_madd_epi16(ul_ch128[0],rxdataF128[0]);
      //      	print_ints("re",&mmtmpU0);
      
      // mmtmpU0 contains real part of 4 consecutive outputs (32-bit)
      mmtmpU1 = _mm_shufflelo_epi16(ul_ch128[0],_MM_SHUFFLE(2,3,0,1));
      mmtmpU1 = _mm_shufflehi_epi16(mmtmpU1,_MM_SHUFFLE(2,3,0,1));
      mmtmpU1 = _mm_sign_epi16(mmtmpU1,*(__m128i*)&conjugate[0]);

      mmtmpU1 = _mm_madd_epi16(mmtmpU1,rxdataF128[0]);
      //      print_ints("im",&mmtmpU1);
      // mmtmpU1 contains imag part of 4 consecutive outputs (32-bit)
      mmtmpU0 = _mm_srai_epi32(mmtmpU0,output_shift);
      //	print_ints("re(shift)",&mmtmpU0);
      mmtmpU1 = _mm_srai_epi32(mmtmpU1,output_shift);
      //	print_ints("im(shift)",&mmtmpU1);
      mmtmpU2 = _mm_unpacklo_epi32(mmtmpU0,mmtmpU1);
      mmtmpU3 = _mm_unpackhi_epi32(mmtmpU0,mmtmpU1);
      //       	print_ints("c0",&mmtmpU2);
      //	print_ints("c1",&mmtmpU3);
      rxdataF_comp128[0] = _mm_packs_epi32(mmtmpU2,mmtmpU3);
      /*
            	print_shorts("rx:",&rxdataF128[0]);
            	print_shorts("ch:",&ul_ch128[0]);
            	print_shorts("pack:",&rxdataF_comp128[0]);
      */
      // multiply by conjugated channel
      mmtmpU0 = _mm_madd_epi16(ul_ch128[1],rxdataF128[1]);
      // mmtmpU0 contains real part of 4 consecutive outputs (32-bit)
      mmtmpU1 = _mm_shufflelo_epi16(ul_ch128[1],_MM_SHUFFLE(2,3,0,1));
      mmtmpU1 = _mm_shufflehi_epi16(mmtmpU1,_MM_SHUFFLE(2,3,0,1));
      mmtmpU1 = _mm_sign_epi16(mmtmpU1,*(__m128i*)conjugate);
      mmtmpU1 = _mm_madd_epi16(mmtmpU1,rxdataF128[1]);
      // mmtmpU1 contains imag part of 4 consecutive outputs (32-bit)
      mmtmpU0 = _mm_srai_epi32(mmtmpU0,output_shift);
      mmtmpU1 = _mm_srai_epi32(mmtmpU1,output_shift);
      mmtmpU2 = _mm_unpacklo_epi32(mmtmpU0,mmtmpU1);
      mmtmpU3 = _mm_unpackhi_epi32(mmtmpU0,mmtmpU1);
      
      rxdataF_comp128[1] = _mm_packs_epi32(mmtmpU2,mmtmpU3);
      //      	print_shorts("rx:",rxdataF128[1]);
      //      	print_shorts("ch:",ul_ch128[1]);
      //      	print_shorts("pack:",rxdataF_comp128[1]);	
      //       multiply by conjugated channel
      mmtmpU0 = _mm_madd_epi16(ul_ch128[2],rxdataF128[2]);
      // mmtmpU0 contains real part of 4 consecutive outputs (32-bit)
      mmtmpU1 = _mm_shufflelo_epi16(ul_ch128[2],_MM_SHUFFLE(2,3,0,1));
      mmtmpU1 = _mm_shufflehi_epi16(mmtmpU1,_MM_SHUFFLE(2,3,0,1));
      mmtmpU1 = _mm_sign_epi16(mmtmpU1,*(__m128i*)conjugate);
      mmtmpU1 = _mm_madd_epi16(mmtmpU1,rxdataF128[2]);
      // mmtmpU1 contains imag part of 4 consecutive outputs (32-bit)
      mmtmpU0 = _mm_srai_epi32(mmtmpU0,output_shift);
      mmtmpU1 = _mm_srai_epi32(mmtmpU1,output_shift);
      mmtmpU2 = _mm_unpacklo_epi32(mmtmpU0,mmtmpU1);
      mmtmpU3 = _mm_unpackhi_epi32(mmtmpU0,mmtmpU1);
      
      rxdataF_comp128[2] = _mm_packs_epi32(mmtmpU2,mmtmpU3);
      //      	print_shorts("rx:",rxdataF128[2]);
      //      	print_shorts("ch:",ul_ch128[2]);
      //        print_shorts("pack:",rxdataF_comp128[2]);
      
      // Add a jitter to compensate for the saturation in "packs" resulting in a bias on the DC after IDFT
      rxdataF_comp128[0] = _mm_add_epi16(rxdataF_comp128[0],(*(__m128i*)&jitter[0]));
      rxdataF_comp128[1] = _mm_add_epi16(rxdataF_comp128[1],(*(__m128i*)&jitter[0]));
      rxdataF_comp128[2] = _mm_add_epi16(rxdataF_comp128[2],(*(__m128i*)&jitter[0]));

      ul_ch128+=3;
      ul_ch_mag128+=3;
      ul_ch_mag128b+=3;
      rxdataF128+=3;
      rxdataF_comp128+=3;
      
    }
  }


  _mm_empty();
  _m_empty();

}     





__m128i QAM_amp128U_0,QAM_amp128bU_0,QAM_amp128U_1,QAM_amp128bU_1;

void ulsch_channel_compensation_alamouti(int32_t **rxdataF_ext,                 // For Distributed Alamouti Combining
					 int32_t **ul_ch_estimates_ext_0,
					 int32_t **ul_ch_estimates_ext_1,
					 int32_t **ul_ch_mag_0,
					 int32_t **ul_ch_magb_0,
					 int32_t **ul_ch_mag_1,
					 int32_t **ul_ch_magb_1,
					 int32_t **rxdataF_comp_0,
					 int32_t **rxdataF_comp_1,
					 LTE_DL_FRAME_PARMS *frame_parms,
					 uint8_t symbol,
					 uint8_t Qm,
					 uint16_t nb_rb,
					 uint8_t output_shift) {
  
  uint16_t rb;
  __m128i *ul_ch128_0,*ul_ch128_1,*ul_ch_mag128_0,*ul_ch_mag128_1,*ul_ch_mag128b_0,*ul_ch_mag128b_1,*rxdataF128,*rxdataF_comp128_0,*rxdataF_comp128_1;
  uint8_t aarx;//,symbol_mod;
  __m128i mmtmpU0,mmtmpU1,mmtmpU2,mmtmpU3;

  //  symbol_mod = (symbol>=(7-frame_parms->Ncp)) ? symbol-(7-frame_parms->Ncp) : symbol;

  //    printf("comp: symbol %d\n",symbol);

  
  if (Qm == 4) {  
    QAM_amp128U_0 = _mm_set1_epi16(QAM16_n1);
    QAM_amp128U_1 = _mm_set1_epi16(QAM16_n1);
  }
  else if (Qm == 6) {
    QAM_amp128U_0  = _mm_set1_epi16(QAM64_n1);
    QAM_amp128bU_0 = _mm_set1_epi16(QAM64_n2);

    QAM_amp128U_1  = _mm_set1_epi16(QAM64_n1);
    QAM_amp128bU_1 = _mm_set1_epi16(QAM64_n2);
  }
  for (aarx=0;aarx<frame_parms->nb_antennas_rx;aarx++) {
    
    ul_ch128_0          = (__m128i *)&ul_ch_estimates_ext_0[aarx][symbol*frame_parms->N_RB_DL*12];
    ul_ch_mag128_0      = (__m128i *)&ul_ch_mag_0[aarx][symbol*frame_parms->N_RB_DL*12];
    ul_ch_mag128b_0     = (__m128i *)&ul_ch_magb_0[aarx][symbol*frame_parms->N_RB_DL*12];
    ul_ch128_1          = (__m128i *)&ul_ch_estimates_ext_1[aarx][symbol*frame_parms->N_RB_DL*12];
    ul_ch_mag128_1      = (__m128i *)&ul_ch_mag_1[aarx][symbol*frame_parms->N_RB_DL*12];
    ul_ch_mag128b_1     = (__m128i *)&ul_ch_magb_1[aarx][symbol*frame_parms->N_RB_DL*12];
    rxdataF128        = (__m128i *)&rxdataF_ext[aarx][symbol*frame_parms->N_RB_DL*12];
    rxdataF_comp128_0   = (__m128i *)&rxdataF_comp_0[aarx][symbol*frame_parms->N_RB_DL*12];
    rxdataF_comp128_1   = (__m128i *)&rxdataF_comp_1[aarx][symbol*frame_parms->N_RB_DL*12];


    for (rb=0;rb<nb_rb;rb++) {
      //      printf("comp: symbol %d rb %d\n",symbol,rb);
      if (Qm>2) {  
	// get channel amplitude if not QPSK

	mmtmpU0 = _mm_madd_epi16(ul_ch128_0[0],ul_ch128_0[0]);
	
	mmtmpU0 = _mm_srai_epi32(mmtmpU0,output_shift);
	
	mmtmpU1 = _mm_madd_epi16(ul_ch128_0[1],ul_ch128_0[1]);
	mmtmpU1 = _mm_srai_epi32(mmtmpU1,output_shift);
	mmtmpU0 = _mm_packs_epi32(mmtmpU0,mmtmpU1);
	
	ul_ch_mag128_0[0] = _mm_unpacklo_epi16(mmtmpU0,mmtmpU0);
	ul_ch_mag128b_0[0] = ul_ch_mag128_0[0];
	ul_ch_mag128_0[0] = _mm_mulhi_epi16(ul_ch_mag128_0[0],QAM_amp128U_0);
	ul_ch_mag128_0[0] = _mm_slli_epi16(ul_ch_mag128_0[0],2); // 2 to compensate the scale channel estimate
	
	ul_ch_mag128_0[1] = _mm_unpackhi_epi16(mmtmpU0,mmtmpU0);
	ul_ch_mag128b_0[1] = ul_ch_mag128_0[1];
	ul_ch_mag128_0[1] = _mm_mulhi_epi16(ul_ch_mag128_0[1],QAM_amp128U_0);
	ul_ch_mag128_0[1] = _mm_slli_epi16(ul_ch_mag128_0[1],2); // 2 to scale compensate the scale channel estimate
	
	mmtmpU0 = _mm_madd_epi16(ul_ch128_0[2],ul_ch128_0[2]);
	mmtmpU0 = _mm_srai_epi32(mmtmpU0,output_shift);
	mmtmpU1 = _mm_packs_epi32(mmtmpU0,mmtmpU0);
	
	ul_ch_mag128_0[2] = _mm_unpacklo_epi16(mmtmpU1,mmtmpU1);
	ul_ch_mag128b_0[2] = ul_ch_mag128_0[2];
	
	ul_ch_mag128_0[2] = _mm_mulhi_epi16(ul_ch_mag128_0[2],QAM_amp128U_0);
	ul_ch_mag128_0[2] = _mm_slli_epi16(ul_ch_mag128_0[2],2);	//  2 to scale compensate the scale channel estimat
	
	
	ul_ch_mag128b_0[0] = _mm_mulhi_epi16(ul_ch_mag128b_0[0],QAM_amp128bU_0);
	ul_ch_mag128b_0[0] = _mm_slli_epi16(ul_ch_mag128b_0[0],2);  //  2 to scale compensate the scale channel estima
	
	
	ul_ch_mag128b_0[1] = _mm_mulhi_epi16(ul_ch_mag128b_0[1],QAM_amp128bU_0);
	ul_ch_mag128b_0[1] = _mm_slli_epi16(ul_ch_mag128b_0[1],2);   //  2 to scale compensate the scale channel estima
	
	ul_ch_mag128b_0[2] = _mm_mulhi_epi16(ul_ch_mag128b_0[2],QAM_amp128bU_0);
	ul_ch_mag128b_0[2] = _mm_slli_epi16(ul_ch_mag128b_0[2],2);	 //  2 to scale compensate the scale channel estima 
	

	

	mmtmpU0 = _mm_madd_epi16(ul_ch128_1[0],ul_ch128_1[0]);
	
	mmtmpU0 = _mm_srai_epi32(mmtmpU0,output_shift);
	
	mmtmpU1 = _mm_madd_epi16(ul_ch128_1[1],ul_ch128_1[1]);
	mmtmpU1 = _mm_srai_epi32(mmtmpU1,output_shift);
	mmtmpU0 = _mm_packs_epi32(mmtmpU0,mmtmpU1);
	
	ul_ch_mag128_1[0] = _mm_unpacklo_epi16(mmtmpU0,mmtmpU0);
	ul_ch_mag128b_1[0] = ul_ch_mag128_1[0];
	ul_ch_mag128_1[0] = _mm_mulhi_epi16(ul_ch_mag128_1[0],QAM_amp128U_1);
	ul_ch_mag128_1[0] = _mm_slli_epi16(ul_ch_mag128_1[0],2); // 2 to compensate the scale channel estimate
	
	ul_ch_mag128_1[1] = _mm_unpackhi_epi16(mmtmpU0,mmtmpU0);
	ul_ch_mag128b_1[1] = ul_ch_mag128_1[1];
	ul_ch_mag128_1[1] = _mm_mulhi_epi16(ul_ch_mag128_1[1],QAM_amp128U_1);
	ul_ch_mag128_1[1] = _mm_slli_epi16(ul_ch_mag128_1[1],2); // 2 to scale compensate the scale channel estimate
	
	mmtmpU0 = _mm_madd_epi16(ul_ch128_1[2],ul_ch128_1[2]);
	mmtmpU0 = _mm_srai_epi32(mmtmpU0,output_shift);
	mmtmpU1 = _mm_packs_epi32(mmtmpU0,mmtmpU0);
	
	ul_ch_mag128_1[2] = _mm_unpacklo_epi16(mmtmpU1,mmtmpU1);
	ul_ch_mag128b_1[2] = ul_ch_mag128_1[2];
	
	ul_ch_mag128_1[2] = _mm_mulhi_epi16(ul_ch_mag128_1[2],QAM_amp128U_0);
	ul_ch_mag128_1[2] = _mm_slli_epi16(ul_ch_mag128_1[2],2);	//  2 to scale compensate the scale channel estimat
	
	
	ul_ch_mag128b_1[0] = _mm_mulhi_epi16(ul_ch_mag128b_1[0],QAM_amp128bU_1);
	ul_ch_mag128b_1[0] = _mm_slli_epi16(ul_ch_mag128b_1[0],2);  //  2 to scale compensate the scale channel estima
	
	
	ul_ch_mag128b_1[1] = _mm_mulhi_epi16(ul_ch_mag128b_1[1],QAM_amp128bU_1);
	ul_ch_mag128b_1[1] = _mm_slli_epi16(ul_ch_mag128b_1[1],2);   //  2 to scale compensate the scale channel estima
	
	ul_ch_mag128b_1[2] = _mm_mulhi_epi16(ul_ch_mag128b_1[2],QAM_amp128bU_1);
	ul_ch_mag128b_1[2] = _mm_slli_epi16(ul_ch_mag128b_1[2],2);	 //  2 to scale compensate the scale channel estima 
      }
      

      /************************For Computing (y)*(h0*)********************************************/

      // multiply by conjugated channel
      mmtmpU0 = _mm_madd_epi16(ul_ch128_0[0],rxdataF128[0]);
      //	print_ints("re",&mmtmpU0);
      
      // mmtmpU0 contains real part of 4 consecutive outputs (32-bit)
      mmtmpU1 = _mm_shufflelo_epi16(ul_ch128_0[0],_MM_SHUFFLE(2,3,0,1));
      mmtmpU1 = _mm_shufflehi_epi16(mmtmpU1,_MM_SHUFFLE(2,3,0,1));
      mmtmpU1 = _mm_sign_epi16(mmtmpU1,*(__m128i*)&conjugate[0]);
      //	print_ints("im",&mmtmpU1);
      mmtmpU1 = _mm_madd_epi16(mmtmpU1,rxdataF128[0]);
      // mmtmpU1 contains imag part of 4 consecutive outputs (32-bit)
      mmtmpU0 = _mm_srai_epi32(mmtmpU0,output_shift);
      //	print_ints("re(shift)",&mmtmpU0);
      mmtmpU1 = _mm_srai_epi32(mmtmpU1,output_shift);
      //	print_ints("im(shift)",&mmtmpU1);
      mmtmpU2 = _mm_unpacklo_epi32(mmtmpU0,mmtmpU1);
      mmtmpU3 = _mm_unpackhi_epi32(mmtmpU0,mmtmpU1);
      //       	print_ints("c0",&mmtmpU2);
      //	print_ints("c1",&mmtmpU3);
      rxdataF_comp128_0[0] = _mm_packs_epi32(mmtmpU2,mmtmpU3);
      //      	print_shorts("rx:",rxdataF128[0]);
      //      	print_shorts("ch:",ul_ch128_0[0]);
      //      	print_shorts("pack:",rxdataF_comp128_0[0]);
      
      // multiply by conjugated channel
      mmtmpU0 = _mm_madd_epi16(ul_ch128_0[1],rxdataF128[1]);
      // mmtmpU0 contains real part of 4 consecutive outputs (32-bit)
      mmtmpU1 = _mm_shufflelo_epi16(ul_ch128_0[1],_MM_SHUFFLE(2,3,0,1));
      mmtmpU1 = _mm_shufflehi_epi16(mmtmpU1,_MM_SHUFFLE(2,3,0,1));
      mmtmpU1 = _mm_sign_epi16(mmtmpU1,*(__m128i*)conjugate);
      mmtmpU1 = _mm_madd_epi16(mmtmpU1,rxdataF128[1]);
      // mmtmpU1 contains imag part of 4 consecutive outputs (32-bit)
      mmtmpU0 = _mm_srai_epi32(mmtmpU0,output_shift);
      mmtmpU1 = _mm_srai_epi32(mmtmpU1,output_shift);
      mmtmpU2 = _mm_unpacklo_epi32(mmtmpU0,mmtmpU1);
      mmtmpU3 = _mm_unpackhi_epi32(mmtmpU0,mmtmpU1);
      
      rxdataF_comp128_0[1] = _mm_packs_epi32(mmtmpU2,mmtmpU3);
      //      	print_shorts("rx:",rxdataF128[1]);
      //      	print_shorts("ch:",ul_ch128_0[1]);
      //      	print_shorts("pack:",rxdataF_comp128_0[1]);	
      //       multiply by conjugated channel
      mmtmpU0 = _mm_madd_epi16(ul_ch128_0[2],rxdataF128[2]);
      // mmtmpU0 contains real part of 4 consecutive outputs (32-bit)
      mmtmpU1 = _mm_shufflelo_epi16(ul_ch128_0[2],_MM_SHUFFLE(2,3,0,1));
      mmtmpU1 = _mm_shufflehi_epi16(mmtmpU1,_MM_SHUFFLE(2,3,0,1));
      mmtmpU1 = _mm_sign_epi16(mmtmpU1,*(__m128i*)conjugate);
      mmtmpU1 = _mm_madd_epi16(mmtmpU1,rxdataF128[2]);
      // mmtmpU1 contains imag part of 4 consecutive outputs (32-bit)
      mmtmpU0 = _mm_srai_epi32(mmtmpU0,output_shift);
      mmtmpU1 = _mm_srai_epi32(mmtmpU1,output_shift);
      mmtmpU2 = _mm_unpacklo_epi32(mmtmpU0,mmtmpU1);
      mmtmpU3 = _mm_unpackhi_epi32(mmtmpU0,mmtmpU1);
      
      rxdataF_comp128_0[2] = _mm_packs_epi32(mmtmpU2,mmtmpU3);
      //      	print_shorts("rx:",rxdataF128[2]);
      //      	print_shorts("ch:",ul_ch128_0[2]);
      //        print_shorts("pack:",rxdataF_comp128_0[2]);
      



      /*************************For Computing (y*)*(h1)************************************/
      // multiply by conjugated signal
      mmtmpU0 = _mm_madd_epi16(ul_ch128_1[0],rxdataF128[0]);
      //	print_ints("re",&mmtmpU0);
      
      // mmtmpU0 contains real part of 4 consecutive outputs (32-bit)
      mmtmpU1 = _mm_shufflelo_epi16(rxdataF128[0],_MM_SHUFFLE(2,3,0,1));
      mmtmpU1 = _mm_shufflehi_epi16(mmtmpU1,_MM_SHUFFLE(2,3,0,1));
      mmtmpU1 = _mm_sign_epi16(mmtmpU1,*(__m128i*)&conjugate[0]);
      //	print_ints("im",&mmtmpU1);
      mmtmpU1 = _mm_madd_epi16(mmtmpU1,ul_ch128_1[0]);
      // mmtmpU1 contains imag part of 4 consecutive outputs (32-bit)
      mmtmpU0 = _mm_srai_epi32(mmtmpU0,output_shift);
      //	print_ints("re(shift)",&mmtmpU0);
      mmtmpU1 = _mm_srai_epi32(mmtmpU1,output_shift);
      //	print_ints("im(shift)",&mmtmpU1);
      mmtmpU2 = _mm_unpacklo_epi32(mmtmpU0,mmtmpU1);
      mmtmpU3 = _mm_unpackhi_epi32(mmtmpU0,mmtmpU1);
      //       	print_ints("c0",&mmtmpU2);
      //	print_ints("c1",&mmtmpU3);
      rxdataF_comp128_1[0] = _mm_packs_epi32(mmtmpU2,mmtmpU3);
      //      	print_shorts("rx:",rxdataF128[0]);
      //      	print_shorts("ch_conjugate:",ul_ch128_1[0]);
      //      	print_shorts("pack:",rxdataF_comp128_1[0]);


      // multiply by conjugated signal
      mmtmpU0 = _mm_madd_epi16(ul_ch128_1[1],rxdataF128[1]);
      // mmtmpU0 contains real part of 4 consecutive outputs (32-bit)
      mmtmpU1 = _mm_shufflelo_epi16(rxdataF128[1],_MM_SHUFFLE(2,3,0,1));
      mmtmpU1 = _mm_shufflehi_epi16(mmtmpU1,_MM_SHUFFLE(2,3,0,1));
      mmtmpU1 = _mm_sign_epi16(mmtmpU1,*(__m128i*)conjugate);
      mmtmpU1 = _mm_madd_epi16(mmtmpU1,ul_ch128_1[1]);
      // mmtmpU1 contains imag part of 4 consecutive outputs (32-bit)
      mmtmpU0 = _mm_srai_epi32(mmtmpU0,output_shift);
      mmtmpU1 = _mm_srai_epi32(mmtmpU1,output_shift);
      mmtmpU2 = _mm_unpacklo_epi32(mmtmpU0,mmtmpU1);
      mmtmpU3 = _mm_unpackhi_epi32(mmtmpU0,mmtmpU1);
      
      rxdataF_comp128_1[1] = _mm_packs_epi32(mmtmpU2,mmtmpU3);
      //      	print_shorts("rx:",rxdataF128[1]);
      //      	print_shorts("ch_conjugate:",ul_ch128_1[1]);
      //      	print_shorts("pack:",rxdataF_comp128_1[1]);


      //       multiply by conjugated signal
      mmtmpU0 = _mm_madd_epi16(ul_ch128_1[2],rxdataF128[2]);
      // mmtmpU0 contains real part of 4 consecutive outputs (32-bit)
      mmtmpU1 = _mm_shufflelo_epi16(rxdataF128[2],_MM_SHUFFLE(2,3,0,1));
      mmtmpU1 = _mm_shufflehi_epi16(mmtmpU1,_MM_SHUFFLE(2,3,0,1));
      mmtmpU1 = _mm_sign_epi16(mmtmpU1,*(__m128i*)conjugate);
      mmtmpU1 = _mm_madd_epi16(mmtmpU1,ul_ch128_1[2]);
      // mmtmpU1 contains imag part of 4 consecutive outputs (32-bit)
      mmtmpU0 = _mm_srai_epi32(mmtmpU0,output_shift);
      mmtmpU1 = _mm_srai_epi32(mmtmpU1,output_shift);
      mmtmpU2 = _mm_unpacklo_epi32(mmtmpU0,mmtmpU1);
      mmtmpU3 = _mm_unpackhi_epi32(mmtmpU0,mmtmpU1);
      
      rxdataF_comp128_1[2] = _mm_packs_epi32(mmtmpU2,mmtmpU3);
      //      	print_shorts("rx:",rxdataF128[2]);
      //      	print_shorts("ch_conjugate:",ul_ch128_0[2]);
      //        print_shorts("pack:",rxdataF_comp128_1[2]);



      ul_ch128_0+=3;
      ul_ch_mag128_0+=3;
      ul_ch_mag128b_0+=3;
      ul_ch128_1+=3;
      ul_ch_mag128_1+=3;
      ul_ch_mag128b_1+=3;
      rxdataF128+=3;
      rxdataF_comp128_0+=3;
      rxdataF_comp128_1+=3;
      
    }
  }


  _mm_empty();
  _m_empty();

}     




void ulsch_alamouti(LTE_DL_FRAME_PARMS *frame_parms,// For Distributed Alamouti Receiver Combining
		    int32_t **rxdataF_comp,
		    int32_t **rxdataF_comp_0,
		    int32_t **rxdataF_comp_1,
		    int32_t **ul_ch_mag,
		    int32_t **ul_ch_magb,
		    int32_t **ul_ch_mag_0,
		    int32_t **ul_ch_magb_0,
		    int32_t **ul_ch_mag_1,
		    int32_t **ul_ch_magb_1,
		    uint8_t symbol,
		    uint16_t nb_rb)   {

  int16_t *rxF,*rxF0,*rxF1;
  __m128i *ch_mag,*ch_magb,*ch_mag0,*ch_mag1,*ch_mag0b,*ch_mag1b;
  uint8_t rb,re,aarx;
  int32_t jj=(symbol*frame_parms->N_RB_DL*12);


  for (aarx=0;aarx<frame_parms->nb_antennas_rx;aarx++) {

    rxF      = (int16_t*)&rxdataF_comp[aarx][jj];
    rxF0     = (int16_t*)&rxdataF_comp_0[aarx][jj];   // Contains (y)*(h0*)
    rxF1     = (int16_t*)&rxdataF_comp_1[aarx][jj];   // Contains (y*)*(h1)
    ch_mag   = (__m128i *)&ul_ch_mag[aarx][jj];
    ch_mag0 = (__m128i *)&ul_ch_mag_0[aarx][jj];
    ch_mag1 = (__m128i *)&ul_ch_mag_1[aarx][jj];
    ch_magb = (__m128i *)&ul_ch_magb[aarx][jj];
    ch_mag0b = (__m128i *)&ul_ch_magb_0[aarx][jj];
    ch_mag1b = (__m128i *)&ul_ch_magb_1[aarx][jj];
    for (rb=0;rb<nb_rb;rb++) {

      for (re=0;re<12;re+=2) {

	// Alamouti RX combining
	     
	rxF[0] = rxF0[0] + rxF1[2];                   // re((y0)*(h0*))+ re((y1*)*(h1)) = re(x0)
	rxF[1] = rxF0[1] + rxF1[3];                   // im((y0)*(h0*))+ im((y1*)*(h1)) = im(x0)

	rxF[2] = rxF0[2] - rxF1[0];                   // re((y1)*(h0*))- re((y0*)*(h1)) = re(x1)
	rxF[3] = rxF0[3] - rxF1[1];                   // im((y1)*(h0*))- im((y0*)*(h1)) = im(x1)

	rxF+=4;
	rxF0+=4;
	rxF1+=4;
      }
 
      // compute levels for 16QAM or 64 QAM llr unit
      ch_mag[0] = _mm_adds_epi16(ch_mag0[0],ch_mag1[0]);
      ch_mag[1] = _mm_adds_epi16(ch_mag0[1],ch_mag1[1]);
      ch_mag[2] = _mm_adds_epi16(ch_mag0[2],ch_mag1[2]);
      ch_magb[0] = _mm_adds_epi16(ch_mag0b[0],ch_mag1b[0]);
      ch_magb[1] = _mm_adds_epi16(ch_mag0b[1],ch_mag1b[1]);
      ch_magb[2] = _mm_adds_epi16(ch_mag0b[2],ch_mag1b[2]);

      ch_mag+=3;
      ch_mag0+=3;
      ch_mag1+=3;
      ch_magb+=3;
      ch_mag0b+=3;
      ch_mag1b+=3;
    }
  }

  _mm_empty();
  _m_empty();
  
}





__m128i avg128U;

void ulsch_channel_level(int32_t **drs_ch_estimates_ext,
			 LTE_DL_FRAME_PARMS *frame_parms,
			 int32_t *avg,
			 uint16_t nb_rb){

  int16_t rb;
  uint8_t aarx;
  __m128i *ul_ch128;
  

  for (aarx=0;aarx<frame_parms->nb_antennas_rx;aarx++) {
    //clear average level
Raymond Knopp's avatar
Clean-up and bug-fixes from S. Held (IMST)  
Raymond Knopp committed
1199 
    avg128U = _mm_setzero_si128();
Cedric Roux's avatar
- Fix: avoid infinite loop on mulitcast read thread if no data to read  
Cedric Roux committed
1200 1201 1202 1203 1204 1205 1206 1207 1208 1209 1210 1211 1212 1213 1214 1215 1216 1217 1218 1219 1220 1221 1222 1223 1224 1225 1226 1227 1228 1229 1230 1231 1232 1233 1234 1235 1236 1237 
    ul_ch128=(__m128i *)drs_ch_estimates_ext[aarx];

    for (rb=0;rb<nb_rb;rb++) {
      
      avg128U = _mm_add_epi32(avg128U,_mm_madd_epi16(ul_ch128[0],ul_ch128[0]));
      avg128U = _mm_add_epi32(avg128U,_mm_madd_epi16(ul_ch128[1],ul_ch128[1]));
      avg128U = _mm_add_epi32(avg128U,_mm_madd_epi16(ul_ch128[2],ul_ch128[2]));
      
      ul_ch128+=3;	
            
      if (rb==0) {
	//	print_shorts("ul_ch128",&ul_ch128[0]);
	//	print_shorts("ul_ch128",&ul_ch128[1]);
	//	print_shorts("ul_ch128",&ul_ch128[2]);
      }
      
    }
    
    avg[aarx] = (((int*)&avg128U)[0] + 
		 ((int*)&avg128U)[1] + 
		 ((int*)&avg128U)[2] + 
		 ((int*)&avg128U)[3])/(nb_rb*12);
    
    //    printf("Channel level : %d\n",avg[aarx]);
  }
  _mm_empty();
  _m_empty();

}

int32_t avgU[2];
int32_t avgU_0[2],avgU_1[2]; // For the Distributed Alamouti Scheme
/* --> moved to LTE_eNB_PUSCH structure
int32_t ulsch_power[2];
int32_t ulsch_power_0[2],ulsch_power_1[2];// For the distributed Alamouti Scheme
*/

void rx_ulsch(PHY_VARS_eNB *phy_vars_eNB,
Raymond Knopp's avatar
 
Raymond Knopp committed
1238 
	      uint32_t sched_subframe,
Cedric Roux's avatar
- Fix: avoid infinite loop on mulitcast read thread if no data to read  
Cedric Roux committed
1239 1240 1241 1242 1243 1244 1245 1246 1247 1248 1249 1250 1251 1252 1253 1254 1255 1256 1257 1258 
	      uint8_t eNB_id,  // this is the effective sector id
	      uint8_t UE_id,
	      LTE_eNB_ULSCH_t **ulsch,
	      uint8_t cooperation_flag) {

 // flagMag = 0;
  LTE_eNB_COMMON *eNB_common_vars = &phy_vars_eNB->lte_eNB_common_vars; 
  LTE_eNB_PUSCH *eNB_pusch_vars = phy_vars_eNB->lte_eNB_pusch_vars[UE_id];
  LTE_DL_FRAME_PARMS *frame_parms = &phy_vars_eNB->lte_frame_parms;

  uint32_t l,i;
  int32_t avgs;
  uint8_t log2_maxh=0,aarx;
 
  
  int32_t avgs_0,avgs_1;
  uint32_t log2_maxh_0=0,log2_maxh_1=0;
  

  //  uint8_t harq_pid = ( ulsch->RRCConnRequest_flag== 0) ? subframe2harq_pid_tdd(frame_parms->tdd_config,subframe) : 0;
Raymond Knopp's avatar
 
Raymond Knopp committed
1259 1260 
  uint8_t harq_pid; 
  uint8_t Qm;
Cedric Roux's avatar
- Fix: avoid infinite loop on mulitcast read thread if no data to read  
Cedric Roux committed
1261 1262 
  uint16_t rx_power_correction;
  int16_t *llrp;
Raymond Knopp's avatar
 
Raymond Knopp committed
1263 
  int subframe = phy_vars_eNB->proc[sched_subframe].subframe_rx;
Raymond Knopp's avatar
 
Raymond Knopp committed
1264
Raymond Knopp's avatar
 
Raymond Knopp committed
1265 
  harq_pid = subframe2harq_pid(frame_parms,phy_vars_eNB->proc[sched_subframe].frame_rx,subframe);
Raymond Knopp's avatar
 
Raymond Knopp committed
1266 
  Qm = get_Qm_ul(ulsch[UE_id]->harq_processes[harq_pid]->mcs);
Cedric Roux's avatar
- Fix: avoid infinite loop on mulitcast read thread if no data to read  
Cedric Roux committed
1267 1268 1269 1270 
#ifdef DEBUG_ULSCH
  msg("rx_ulsch: eNB_id %d, harq_pid %d, nb_rb %d first_rb %d, cooperation %d\n",eNB_id,harq_pid,ulsch[UE_id]->harq_processes[harq_pid]->nb_rb,ulsch[UE_id]->harq_processes[harq_pid]->first_rb, cooperation_flag);
#endif //DEBUG_ULSCH
Raymond Knopp's avatar
 
Raymond Knopp committed
1271 
  rx_power_correction = 1;
Cedric Roux's avatar
- Fix: avoid infinite loop on mulitcast read thread if no data to read  
Cedric Roux committed
1272
Raymond Knopp's avatar
 
Raymond Knopp committed
1273 
  for (l=0;l<(frame_parms->symbols_per_tti-ulsch[UE_id]->harq_processes[harq_pid]->srs_active);l++) {
Cedric Roux's avatar
- Fix: avoid infinite loop on mulitcast read thread if no data to read  
Cedric Roux committed
1274 1275 1276 1277 1278 1279 1280 1281 1282 1283 1284 1285 1286 1287 1288 1289 1290 1291 1292 1293 
          
#ifdef DEBUG_ULSCH
    msg("rx_ulsch : symbol %d (first_rb %d,nb_rb %d), rxdataF %p, rxdataF_ext %p\n",l,
	ulsch[UE_id]->harq_processes[harq_pid]->first_rb,
	ulsch[UE_id]->harq_processes[harq_pid]->nb_rb,
	eNB_common_vars->rxdataF[eNB_id],
    	eNB_pusch_vars->rxdataF_ext[eNB_id]);
#endif //DEBUG_ULSCH

    ulsch_extract_rbs_single(eNB_common_vars->rxdataF[eNB_id],
			     eNB_pusch_vars->rxdataF_ext[eNB_id],
			     ulsch[UE_id]->harq_processes[harq_pid]->first_rb,
			     ulsch[UE_id]->harq_processes[harq_pid]->nb_rb,
			     l%(frame_parms->symbols_per_tti/2),
			     l/(frame_parms->symbols_per_tti/2),
			     frame_parms);

    lte_ul_channel_estimation(phy_vars_eNB,
			      eNB_id,
			      UE_id,
Raymond Knopp's avatar
 
Raymond Knopp committed
1294 
			      sched_subframe,
Cedric Roux's avatar
- Fix: avoid infinite loop on mulitcast read thread if no data to read  
Cedric Roux committed
1295 1296 1297 
			      l%(frame_parms->symbols_per_tti/2),
			      l/(frame_parms->symbols_per_tti/2),
			      cooperation_flag);
Florian Kaltenberger's avatar
fixed bugs in UL power control  
Florian Kaltenberger committed
1298 
  }
Cedric Roux's avatar
- Fix: avoid infinite loop on mulitcast read thread if no data to read  
Cedric Roux committed
1299 1300 1301 1302 1303 1304 1305 

    if(cooperation_flag == 2)
      {
	for (i=0;i<frame_parms->nb_antennas_rx;i++){
	  eNB_pusch_vars->ulsch_power_0[i] = signal_energy(eNB_pusch_vars->drs_ch_estimates_0[eNB_id][i],
						ulsch[UE_id]->harq_processes[harq_pid]->nb_rb*12)*rx_power_correction;
	  eNB_pusch_vars->ulsch_power_1[i] = signal_energy(eNB_pusch_vars->drs_ch_estimates_1[eNB_id][i],
Navid Nikaein's avatar
* add some functions for terminal localizations  
Navid Nikaein committed
1306 
						ulsch[UE_id]->harq_processes[harq_pid]->nb_rb*12)*rx_power_correction;
Cedric Roux's avatar
- Fix: avoid infinite loop on mulitcast read thread if no data to read  
Cedric Roux committed
1307 1308 1309 1310 
	}
      }
    else
      {
Navid Nikaein's avatar
* add some functions for terminal localizations  
Navid Nikaein committed
1311 
	for (i=0;i<frame_parms->nb_antennas_rx;i++) {
Cedric Roux's avatar
- Fix: avoid infinite loop on mulitcast read thread if no data to read  
Cedric Roux committed
1312 1313 
	  eNB_pusch_vars->ulsch_power[i] = signal_energy_nodc(eNB_pusch_vars->drs_ch_estimates[eNB_id][i],
					      ulsch[UE_id]->harq_processes[harq_pid]->nb_rb*12)*rx_power_correction;
Navid Nikaein's avatar
* add some functions for terminal localizations  
Navid Nikaein committed
1314 1315 1316 1317 1318 1319 
#ifdef LOCALIZATION
          eNB_pusch_vars->subcarrier_power = (int32_t *)malloc(ulsch[UE_id]->harq_processes[harq_pid]->nb_rb*12*sizeof(int32_t));
          eNB_pusch_vars->active_subcarrier = subcarrier_energy(eNB_pusch_vars->drs_ch_estimates[eNB_id][i],
					      ulsch[UE_id]->harq_processes[harq_pid]->nb_rb*12, eNB_pusch_vars->subcarrier_power, rx_power_correction);
#endif
        }
Cedric Roux's avatar
- Fix: avoid infinite loop on mulitcast read thread if no data to read  
Cedric Roux committed
1320 
      }
Florian Kaltenberger's avatar
fixed bugs in UL power control  
Florian Kaltenberger committed
1321 1322 1323 
  
    //write_output("rxdataF_ext.m","rxF_ext",eNB_pusch_vars->rxdataF_ext[eNB_id][0],300*(frame_parms->symbols_per_tti-ulsch[UE_id]->srs_active),1,1);
    //write_output("ulsch_chest.m","drs_est",eNB_pusch_vars->drs_ch_estimates[eNB_id][0],300*(frame_parms->symbols_per_tti-ulsch[UE_id]->srs_active),1,1);
Cedric Roux's avatar
- Fix: avoid infinite loop on mulitcast read thread if no data to read  
Cedric Roux committed
1324 1325 1326 1327 1328 1329 1330 1331 1332 1333 1334 1335 1336 1337 1338 1339 1340 1341 1342 1343 1344 1345 1346 1347 1348 1349 1350 1351 1352 1353 1354 1355 1356 1357 1358 1359 1360 1361 1362 1363 1364 1365 1366 1367 1368 1369 1370 1371 1372 1373 1374 1375 1376 1377 


  if(cooperation_flag == 2)
    {
      ulsch_channel_level(eNB_pusch_vars->drs_ch_estimates_0[eNB_id],
			  frame_parms,
			  avgU_0,
			  ulsch[UE_id]->harq_processes[harq_pid]->nb_rb);
    
      //  msg("[ULSCH] avg_0[0] %d\n",avgU_0[0]);
  

      avgs_0 = 0;
      for (aarx=0;aarx<frame_parms->nb_antennas_rx;aarx++)
	avgs_0 = cmax(avgs_0,avgU_0[(aarx<<1)]);
  
      log2_maxh_0 = (log2_approx(avgs_0)/2)+ log2_approx(frame_parms->nb_antennas_rx-1)+3;
#ifdef DEBUG_ULSCH
      msg("[ULSCH] log2_maxh_0 = %d (%d,%d)\n",log2_maxh_0,avgU_0[0],avgs_0);
#endif

      ulsch_channel_level(eNB_pusch_vars->drs_ch_estimates_1[eNB_id],
			  frame_parms,
			  avgU_1,
			  ulsch[UE_id]->harq_processes[harq_pid]->nb_rb);
    
      //  msg("[ULSCH] avg_1[0] %d\n",avgU_1[0]);
  

      avgs_1 = 0;
      for (aarx=0;aarx<frame_parms->nb_antennas_rx;aarx++)
	avgs_1 = cmax(avgs_1,avgU_1[(aarx<<1)]);
  
      log2_maxh_1 = (log2_approx(avgs_1)/2) + log2_approx(frame_parms->nb_antennas_rx-1)+3;
#ifdef DEBUG_ULSCH
      msg("[ULSCH] log2_maxh_1 = %d (%d,%d)\n",log2_maxh_1,avgU_1[0],avgs_1);
#endif
      log2_maxh = max(log2_maxh_0,log2_maxh_1);
    }
  else
    {
      ulsch_channel_level(eNB_pusch_vars->drs_ch_estimates[eNB_id],
			  frame_parms,
			  avgU,
			  ulsch[UE_id]->harq_processes[harq_pid]->nb_rb);
    
      //  msg("[ULSCH] avg[0] %d\n",avgU[0]);
  

      avgs = 0;
      for (aarx=0;aarx<frame_parms->nb_antennas_rx;aarx++)
	avgs = cmax(avgs,avgU[(aarx<<1)]);
  
      //      log2_maxh = 4+(log2_approx(avgs)/2);
Raymond Knopp's avatar
 
Raymond Knopp committed
1378
Cedric Roux's avatar
- Fix: avoid infinite loop on mulitcast read thread if no data to read  
Cedric Roux committed
1379 
      log2_maxh = (log2_approx(avgs)/2)+ log2_approx(frame_parms->nb_antennas_rx-1)+4;
Raymond Knopp's avatar
 
Raymond Knopp committed
1380
Cedric Roux's avatar
- Fix: avoid infinite loop on mulitcast read thread if no data to read  
Cedric Roux committed
1381 1382 1383 1384 1385 
#ifdef DEBUG_ULSCH
      msg("[ULSCH] log2_maxh = %d (%d,%d)\n",log2_maxh,avgU[0],avgs);
#endif
    }
Raymond Knopp's avatar
 
Raymond Knopp committed
1386 
  for (l=0;l<frame_parms->symbols_per_tti-ulsch[UE_id]->harq_processes[harq_pid]->srs_active;l++) {
Cedric Roux's avatar
- Fix: avoid infinite loop on mulitcast read thread if no data to read  
Cedric Roux committed
1387 1388 1389 1390 1391 1392 1393 1394 1395 1396 1397 1398 1399 1400 1401 1402 1403 1404 1405 1406 1407 1408 1409 1410 1411 1412 1413 1414 1415 1416 1417 1418 1419 1420 1421 1422 1423 1424 1425 1426 1427 1428 1429 1430 1431 1432 1433 1434 1435 1436 1437 1438 1439 1440 1441 1442 1443 1444 1445 1446 1447 1448 1449 1450 1451 1452 1453 1454 1455 1456 1457 1458 1459 1460 1461 1462 1463 1464 1465 1466 1467 1468 1469 1470 1471 1472 1473 1474 1475 1476 1477 1478 1479 1480 1481 1482 1483 1484 1485 1486 1487 1488 1489 1490 

    if (((frame_parms->Ncp == 0) && ((l==3) || (l==10)))||   // skip pilots
	((frame_parms->Ncp == 1) && ((l==2) || (l==8)))) {
      l++;
    }    

    if(cooperation_flag == 2)
      {

	ulsch_channel_compensation_alamouti(
					    eNB_pusch_vars->rxdataF_ext[eNB_id],
					    eNB_pusch_vars->drs_ch_estimates_0[eNB_id],
					    eNB_pusch_vars->drs_ch_estimates_1[eNB_id],
					    eNB_pusch_vars->ul_ch_mag_0[eNB_id],
					    eNB_pusch_vars->ul_ch_magb_0[eNB_id],
					    eNB_pusch_vars->ul_ch_mag_1[eNB_id],
					    eNB_pusch_vars->ul_ch_magb_1[eNB_id],
					    eNB_pusch_vars->rxdataF_comp_0[eNB_id],
					    eNB_pusch_vars->rxdataF_comp_1[eNB_id],
					    frame_parms,
					    l,
					    Qm,
					    ulsch[UE_id]->harq_processes[harq_pid]->nb_rb,
					    log2_maxh);

	ulsch_alamouti(frame_parms,
		       eNB_pusch_vars->rxdataF_comp[eNB_id],
		       eNB_pusch_vars->rxdataF_comp_0[eNB_id],
		       eNB_pusch_vars->rxdataF_comp_1[eNB_id],
		       eNB_pusch_vars->ul_ch_mag[eNB_id],
		       eNB_pusch_vars->ul_ch_magb[eNB_id],
		       eNB_pusch_vars->ul_ch_mag_0[eNB_id],
		       eNB_pusch_vars->ul_ch_magb_0[eNB_id],
		       eNB_pusch_vars->ul_ch_mag_1[eNB_id],
		       eNB_pusch_vars->ul_ch_magb_1[eNB_id],
		       l,
		       ulsch[UE_id]->harq_processes[harq_pid]->nb_rb);
      }
    else
      {
	ulsch_channel_compensation(
				   eNB_pusch_vars->rxdataF_ext[eNB_id],
				   eNB_pusch_vars->drs_ch_estimates[eNB_id],
				   eNB_pusch_vars->ul_ch_mag[eNB_id],
				   eNB_pusch_vars->ul_ch_magb[eNB_id],
				   eNB_pusch_vars->rxdataF_comp[eNB_id],
				   frame_parms,
				   l,
				   Qm,
				   ulsch[UE_id]->harq_processes[harq_pid]->nb_rb,
				   log2_maxh); // log2_maxh+I0_shift

      }
      
      
     //eren
    /* if(flagMag == 0){
	//writing for the first time 
	write_output(namepointer_log2,"xxx",log2_maxh,1,1,12);

    write_output(namepointer_chMag,"xxx",eNB_pusch_vars->ul_ch_mag[eNB_id][0],300,1,11);
    
   //namepointer_chMag = NULL;
    flagMag=1;
    }*/

    if (frame_parms->nb_antennas_rx > 1)
              ulsch_detection_mrc(frame_parms,
			  eNB_pusch_vars->rxdataF_comp[eNB_id],
			  eNB_pusch_vars->ul_ch_mag[eNB_id],
			  eNB_pusch_vars->ul_ch_magb[eNB_id],
			  l,
			  ulsch[UE_id]->harq_processes[harq_pid]->nb_rb);

#ifndef OFDMA_ULSCH 
    if ((phy_vars_eNB->PHY_measurements_eNB->n0_power_dB[0]+3)<eNB_pusch_vars->ulsch_power[0]){

        freq_equalization(frame_parms,
			eNB_pusch_vars->rxdataF_comp[eNB_id],
			eNB_pusch_vars->ul_ch_mag[eNB_id],
			eNB_pusch_vars->ul_ch_magb[eNB_id],
			l,
			ulsch[UE_id]->harq_processes[harq_pid]->nb_rb*12,
			Qm);
    }
    
#endif
  }

#ifndef OFDMA_ULSCH
        
  //#ifdef DEBUG_ULSCH
  // Inverse-Transform equalized outputs
  //  msg("Doing IDFTs\n");
  lte_idft(frame_parms,
	   (uint32_t*)eNB_pusch_vars->rxdataF_comp[eNB_id][0],
	   ulsch[UE_id]->harq_processes[harq_pid]->nb_rb*12);
  //  msg("Done\n"); 
  //#endif //DEBUG_ULSCH

#endif


  llrp = (int16_t*)&eNB_pusch_vars->llr[0];
Raymond Knopp's avatar
 
Raymond Knopp committed
1491 
  for (l=0;l<frame_parms->symbols_per_tti-ulsch[UE_id]->harq_processes[harq_pid]->srs_active;l++) {
Cedric Roux's avatar
- Fix: avoid infinite loop on mulitcast read thread if no data to read  
Cedric Roux committed
1492 1493 1494 1495 1496 1497 1498 1499 1500 1501 1502 1503 1504 1505 1506 1507 1508 1509 1510 1511 1512 1513 1514 1515 1516 1517 1518 1519 1520 1521 1522 1523 1524 1525 1526 1527 1528 1529 1530 1531 1532 1533 1534 1535 1536 1537 1538 1539 1540 1541 1542 1543 1544 
    
    if (((frame_parms->Ncp == 0) && ((l==3) || (l==10)))||   // skip pilots
	((frame_parms->Ncp == 1) && ((l==2) || (l==8)))) {
      l++;
    }    

    switch (Qm) {
    case 2 : 
      ulsch_qpsk_llr(frame_parms,
		     eNB_pusch_vars->rxdataF_comp[eNB_id],
		     eNB_pusch_vars->llr,
		     l,
		     ulsch[UE_id]->harq_processes[harq_pid]->nb_rb,
		     &llrp);
      break;
    case 4 :
      ulsch_16qam_llr(frame_parms,
		      eNB_pusch_vars->rxdataF_comp[eNB_id],
		      eNB_pusch_vars->llr,
		      eNB_pusch_vars->ul_ch_mag[eNB_id],
		      l,ulsch[UE_id]->harq_processes[harq_pid]->nb_rb,
		      &llrp);
      break;
    case 6 :
      ulsch_64qam_llr(frame_parms,
		      eNB_pusch_vars->rxdataF_comp[eNB_id],
		      eNB_pusch_vars->llr,
		      eNB_pusch_vars->ul_ch_mag[eNB_id],
		      eNB_pusch_vars->ul_ch_magb[eNB_id],
		      l,ulsch[UE_id]->harq_processes[harq_pid]->nb_rb,
		      &llrp);
      break;
    default:
#ifdef DEBUG_ULSCH
      msg("ulsch_demodulation.c (rx_ulsch): Unknown Qm!!!!\n");
#endif //DEBUG_ULSCH
      break;
    }
  }

}

void rx_ulsch_emul(PHY_VARS_eNB *phy_vars_eNB,
		   uint8_t subframe,
		   uint8_t sect_id,
		   uint8_t UE_index) {
  msg("[PHY] EMUL eNB %d rx_ulsch_emul : subframe %d, sect_id %d, UE_index %d\n",phy_vars_eNB->Mod_id,subframe,sect_id,UE_index);
  phy_vars_eNB->lte_eNB_pusch_vars[UE_index]->ulsch_power[0] = 31622; //=45dB;
  phy_vars_eNB->lte_eNB_pusch_vars[UE_index]->ulsch_power[1] = 31622; //=45dB;

}
Raymond Knopp's avatar
 
Raymond Knopp committed
1545 
void dump_ulsch(PHY_VARS_eNB *PHY_vars_eNB,uint8_t sched_subframe, uint8_t UE_id) {
Cedric Roux's avatar
- Fix: avoid infinite loop on mulitcast read thread if no data to read  
Cedric Roux committed
1546 1547 

  uint32_t nsymb = (PHY_vars_eNB->lte_frame_parms.Ncp == 0) ? 14 : 12;
Raymond Knopp's avatar
 
Raymond Knopp committed
1548 
  uint8_t harq_pid;
Raymond Knopp's avatar
 
Raymond Knopp committed
1549 
  int subframe = PHY_vars_eNB->proc[sched_subframe].subframe_rx;
Raymond Knopp's avatar
 
Raymond Knopp committed
1550
Raymond Knopp's avatar
 
Raymond Knopp committed
1551 
  harq_pid = subframe2harq_pid(&PHY_vars_eNB->lte_frame_parms,PHY_vars_eNB->proc[sched_subframe].frame_rx,subframe);
Raymond Knopp's avatar
 
Raymond Knopp committed
1552
Raymond Knopp's avatar
 
Raymond Knopp committed
1553 
  printf("Dumping ULSCH in subframe %d with harq_pid %d, for NB_rb %d, mcs %d, Qm %d, N_symb %d\n", subframe,harq_pid,PHY_vars_eNB->ulsch_eNB[UE_id]->harq_processes[harq_pid]->nb_rb,PHY_vars_eNB->ulsch_eNB[UE_id]->harq_processes[harq_pid]->mcs,get_Qm_ul(PHY_vars_eNB->ulsch_eNB[UE_id]->harq_processes[harq_pid]->mcs),PHY_vars_eNB->ulsch_eNB[UE_id]->harq_processes[harq_pid]->Nsymb_pusch);
Raymond Knopp's avatar
 
Raymond Knopp committed
1554 
  //#ifndef OAI_EMU
Cedric Roux's avatar
- Fix: avoid infinite loop on mulitcast read thread if no data to read  
Cedric Roux committed
1555 1556 1557 1558 1559 1560 1561 1562 1563 1564 1565 1566 1567 1568 1569 1570 1571 1572 1573 1574 1575 
  write_output("/tmp/ulsch_d.m","ulsch_dseq",&PHY_vars_eNB->ulsch_eNB[UE_id]->harq_processes[harq_pid]->d[0][96], 
	       PHY_vars_eNB->ulsch_eNB[UE_id]->harq_processes[harq_pid]->Kplus*3,1,0);
  write_output("/tmp/rxsig0.m","rxs0", &PHY_vars_eNB->lte_eNB_common_vars.rxdata[0][0][0],PHY_vars_eNB->lte_frame_parms.samples_per_tti*10,1,1);
  if (PHY_vars_eNB->lte_frame_parms.nb_antennas_rx>1)
    write_output("/tmp/rxsig1.m","rxs1", &PHY_vars_eNB->lte_eNB_common_vars.rxdata[0][1][0],PHY_vars_eNB->lte_frame_parms.samples_per_tti*10,1,1);
  write_output("/tmp/rxsigF0.m","rxsF0", &PHY_vars_eNB->lte_eNB_common_vars.rxdataF[0][0][0],PHY_vars_eNB->lte_frame_parms.ofdm_symbol_size*nsymb,1,1);
  if (PHY_vars_eNB->lte_frame_parms.nb_antennas_rx>1)
    write_output("/tmp/rxsigF1.m","rxsF1", &PHY_vars_eNB->lte_eNB_common_vars.rxdataF[0][1][0],PHY_vars_eNB->lte_frame_parms.ofdm_symbol_size*nsymb,1,1);
  write_output("/tmp/rxsigF0_ext.m","rxsF0_ext", &PHY_vars_eNB->lte_eNB_pusch_vars[UE_id]->rxdataF_ext[0][0][0],PHY_vars_eNB->lte_frame_parms.N_RB_UL*12*nsymb,1,1);
  if (PHY_vars_eNB->lte_frame_parms.nb_antennas_rx>1)
    write_output("/tmp/rxsigF1_ext.m","rxsF1_ext", &PHY_vars_eNB->lte_eNB_pusch_vars[UE_id]->rxdataF_ext[1][0][0],PHY_vars_eNB->lte_frame_parms.N_RB_UL*12*nsymb,1,1);


  write_output("/tmp/srs_est0.m","srsest0",PHY_vars_eNB->lte_eNB_srs_vars[UE_id].srs_ch_estimates[0][0],PHY_vars_eNB->lte_frame_parms.ofdm_symbol_size,1,1);
  if (PHY_vars_eNB->lte_frame_parms.nb_antennas_rx>1)
    write_output("/tmp/srs_est1.m","srsest1",PHY_vars_eNB->lte_eNB_srs_vars[UE_id].srs_ch_estimates[0][1],PHY_vars_eNB->lte_frame_parms.ofdm_symbol_size,1,1);
  write_output("/tmp/drs_est0.m","drsest0",PHY_vars_eNB->lte_eNB_pusch_vars[UE_id]->drs_ch_estimates[0][0],PHY_vars_eNB->lte_frame_parms.N_RB_UL*12*nsymb,1,1);
  if (PHY_vars_eNB->lte_frame_parms.nb_antennas_rx>1)
    write_output("/tmp/drs_est1.m","drsest1",PHY_vars_eNB->lte_eNB_pusch_vars[UE_id]->drs_ch_estimates[0][1],PHY_vars_eNB->lte_frame_parms.N_RB_UL*12*nsymb,1,1);
  write_output("/tmp/ulsch_rxF_comp0.m","ulsch0_rxF_comp0",&PHY_vars_eNB->lte_eNB_pusch_vars[UE_id]->rxdataF_comp[0][0][0],PHY_vars_eNB->lte_frame_parms.N_RB_UL*12*nsymb,1,1);
  //  write_output("ulsch_rxF_comp1.m","ulsch0_rxF_comp1",&PHY_vars_eNB->lte_eNB_pusch_vars[UE_id]->rxdataF_comp[0][1][0],PHY_vars_eNB->lte_frame_parms.N_RB_UL*12*nsymb,1,1);
Raymond Knopp's avatar
 
Raymond Knopp committed
1576 
  write_output("/tmp/ulsch_rxF_llr.m","ulsch_llr",PHY_vars_eNB->lte_eNB_pusch_vars[UE_id]->llr,PHY_vars_eNB->ulsch_eNB[UE_id]->harq_processes[harq_pid]->nb_rb*12*get_Qm_ul(PHY_vars_eNB->ulsch_eNB[UE_id]->harq_processes[harq_pid]->mcs)*PHY_vars_eNB->ulsch_eNB[UE_id]->harq_processes[harq_pid]->Nsymb_pusch,1,0);
Cedric Roux's avatar
- Fix: avoid infinite loop on mulitcast read thread if no data to read  
Cedric Roux committed
1577 1578 
  write_output("/tmp/ulsch_ch_mag.m","ulsch_ch_mag",&PHY_vars_eNB->lte_eNB_pusch_vars[UE_id]->ul_ch_mag[0][0][0],PHY_vars_eNB->lte_frame_parms.N_RB_UL*12*nsymb,1,1);	  
  //  write_output("ulsch_ch_mag1.m","ulsch_ch_mag1",&PHY_vars_eNB->lte_eNB_pusch_vars[UE_id]->ul_ch_mag[0][1][0],PHY_vars_eNB->lte_frame_parms.N_RB_UL*12*nsymb,1,1);
Raymond Knopp's avatar
 
Raymond Knopp committed
1579 
  //#endif
Cedric Roux's avatar
- Fix: avoid infinite loop on mulitcast read thread if no data to read  
Cedric Roux committed
1580 1581 
}