dci_tools.c 373 KB
Newer Older
1
2
3
4
5
/*
 * Licensed to the OpenAirInterface (OAI) Software Alliance under one or more
 * contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The OpenAirInterface Software Alliance licenses this file to You under
Cedric Roux's avatar
Cedric Roux committed
6
 * the OAI Public License, Version 1.1  (the "License"); you may not use this file
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
 * except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.openairinterface.org/?page_id=698
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 *-------------------------------------------------------------------------------
 * For more information about the OpenAirInterface (OAI) Software Alliance:
 *      contact@openairinterface.org
 */

22
/*! \file PHY/LTE_TRANSPORT/dci_tools.c
23
 * \brief PHY Support routines (eNB/UE) for filling PDSCH/PUSCH/DLSCH/ULSCH data structures based on DCI PDUs generated by eNB MAC scheduler.
24
25
26
27
28
29
30
31
 * \author R. Knopp
 * \date 2011
 * \version 0.1
 * \company Eurecom
 * \email: knopp@eurecom.fr
 * \note
 * \warning
 */
32

33
34
35
36
37
38
#include "PHY/defs.h"
#include "PHY/extern.h"
#include "SCHED/defs.h"
#ifdef DEBUG_DCI_TOOLS
#include "PHY/vars.h"
#endif
winckel's avatar
winckel committed
39
#include "assertions.h"
40
#include "nfapi_interface.h"
41

42
//#define DEBUG_HARQ
43

Gabriel's avatar
Gabriel committed
44
45
46
#include "LAYER2/MAC/extern.h"
#include "LAYER2/MAC/defs.h"

47
48
//#define DEBUG_DCI

49
50
51
uint32_t localRIV2alloc_LUT6[32];
uint32_t distRIV2alloc_even_LUT6[32];
uint32_t distRIV2alloc_odd_LUT6[32];
52
53
54
55
uint16_t RIV2nb_rb_LUT6[32];
uint16_t RIV2first_rb_LUT6[32];
uint16_t RIV_max6=0;

56
57
58
uint32_t localRIV2alloc_LUT25[512];
uint32_t distRIV2alloc_even_LUT25[512];
uint32_t distRIV2alloc_odd_LUT25[512];
59
60
61
62
63
uint16_t RIV2nb_rb_LUT25[512];
uint16_t RIV2first_rb_LUT25[512];
uint16_t RIV_max25=0;


64
65
66
67
68
69
70
71
72
73
uint32_t localRIV2alloc_LUT50_0[1600];
uint32_t localRIV2alloc_LUT50_1[1600];
uint32_t distRIV2alloc_gap0_even_LUT50_0[1600];
uint32_t distRIV2alloc_gap0_odd_LUT50_0[1600];
uint32_t distRIV2alloc_gap0_even_LUT50_1[1600];
uint32_t distRIV2alloc_gap0_odd_LUT50_1[1600];
uint32_t distRIV2alloc_gap1_even_LUT50_0[1600];
uint32_t distRIV2alloc_gap1_odd_LUT50_0[1600];
uint32_t distRIV2alloc_gap1_even_LUT50_1[1600];
uint32_t distRIV2alloc_gap1_odd_LUT50_1[1600];
74
75
76
77
uint16_t RIV2nb_rb_LUT50[1600];
uint16_t RIV2first_rb_LUT50[1600];
uint16_t RIV_max50=0;

78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
uint32_t localRIV2alloc_LUT100_0[6000];
uint32_t localRIV2alloc_LUT100_1[6000];
uint32_t localRIV2alloc_LUT100_2[6000];
uint32_t localRIV2alloc_LUT100_3[6000];
uint32_t distRIV2alloc_gap0_even_LUT100_0[6000];
uint32_t distRIV2alloc_gap0_odd_LUT100_0[6000];
uint32_t distRIV2alloc_gap0_even_LUT100_1[6000];
uint32_t distRIV2alloc_gap0_odd_LUT100_1[6000];
uint32_t distRIV2alloc_gap0_even_LUT100_2[6000];
uint32_t distRIV2alloc_gap0_odd_LUT100_2[6000];
uint32_t distRIV2alloc_gap0_even_LUT100_3[6000];
uint32_t distRIV2alloc_gap0_odd_LUT100_3[6000];
uint32_t distRIV2alloc_gap1_even_LUT100_0[6000];
uint32_t distRIV2alloc_gap1_odd_LUT100_0[6000];
uint32_t distRIV2alloc_gap1_even_LUT100_1[6000];
uint32_t distRIV2alloc_gap1_odd_LUT100_1[6000];
uint32_t distRIV2alloc_gap1_even_LUT100_2[6000];
uint32_t distRIV2alloc_gap1_odd_LUT100_2[6000];
uint32_t distRIV2alloc_gap1_even_LUT100_3[6000];
uint32_t distRIV2alloc_gap1_odd_LUT100_3[6000];
98
99
100
101
102
103
104
105
106
uint16_t RIV2nb_rb_LUT100[6000];
uint16_t RIV2first_rb_LUT100[6000];
uint16_t RIV_max100=0;


extern uint32_t current_dlsch_cqi;

// Table 8.6.3-3 36.213
uint16_t beta_cqi[16] = {0,   //reserved
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
                         0,   //reserved
                         9,   //1.125
                         10,  //1.250
                         11,  //1.375
                         13,  //1.625
                         14,  //1.750
                         16,  //2.000
                         18,  //2.250
                         20,  //2.500
                         23,  //2.875
                         25,  //3.125
                         28,  //3.500
                         32,  //4.000
                         40,  //5.000
                         50
                        }; //6.250
123
124
125

// Table 8.6.3-2 36.213
uint16_t beta_ri[16] = {10,   //1.250
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
                        13,   //1.625
                        16,   //2.000
                        20,   //2.500
                        25,   //3.125
                        32,   //4.000
                        40,   //5.000
                        50,   //6.250
                        64,   //8.000
                        80,   //10.000
                        101,  //12.625
                        127,  //15.875
                        160,  //20.000
                        0,    //reserved
                        0,    //reserved
                        0
                       };   //reserved
142
143
144

// Table 8.6.3-2 36.213
uint16_t beta_ack[16] = {16,  //2.000
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
                         20,  //2.500
                         25,  //3.125
                         32,  //4.000
                         40,  //5.000
                         50,  //6.250
                         64,  //8.000
                         80,  //10.000
                         101, //12.625
                         127, //15.875
                         160, //20.000
                         248, //31.000
                         400, //50.000
                         640, //80.000
                         808
                        };//126.00
160
161
162
163
164

int8_t delta_PUSCH_abs[4] = {-4,-1,1,4};
int8_t delta_PUSCH_acc[4] = {-1,0,1,3};

int8_t *delta_PUCCH_lut = delta_PUSCH_acc;
165

166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
void conv_eMTC_rballoc(uint16_t resource_block_coding,
		       uint32_t N_RB_DL,
		       uint32_t *rb_alloc) {

   
  int narrowband = resource_block_coding>>5;
  int RIV        = resource_block_coding&31;
  int N_NB_DL    = N_RB_DL/6;
  int i0         = (N_RB_DL>>1) - (3*N_NB_DL);
  int first_rb   = (6*narrowband)+i0;
  int alloc      = localRIV2alloc_LUT6[RIV];
  int ind        = first_rb>>5;
  int ind_mod    = first_rb&31;

  if (((N_RB_DL&1) > 0) && (narrowband>=(N_NB_DL>>1))) first_rb++;
  rb_alloc[0]                        = 0;
  rb_alloc[1]                        = 0;
  rb_alloc[2]                        = 0;
  rb_alloc[3]                        = 0;
  rb_alloc[ind]                      = alloc<<ind_mod;
  if (ind_mod > 26)  rb_alloc[ind+1] = alloc>>(6-(ind_mod-26)); 
}

189
190
void conv_rballoc(uint8_t ra_header,uint32_t rb_alloc,uint32_t N_RB_DL,uint32_t *rb_alloc2)
{
191
192

  uint32_t i,shift,subset;
193
194
195
196
  rb_alloc2[0] = 0;
  rb_alloc2[1] = 0;
  rb_alloc2[2] = 0;
  rb_alloc2[3] = 0;
197
198
199
200
201
202
203
204
205
206
207

  //  printf("N_RB_DL %d, ra_header %d, rb_alloc %x\n",N_RB_DL,ra_header,rb_alloc);

  switch (N_RB_DL) {

  case 6:
    rb_alloc2[0] = rb_alloc&0x3f;
    break;

  case 25:
    if (ra_header == 0) {// Type 0 Allocation
208
209
210
211
212
213

      for (i=12; i>0; i--) {
        if ((rb_alloc&(1<<i)) != 0)
          rb_alloc2[0] |= (3<<((2*(12-i))));

        //      printf("rb_alloc2 (type 0) %x\n",rb_alloc2);
214
      }
215

216
      if ((rb_alloc&1) != 0)
217
218
        rb_alloc2[0] |= (1<<24);
    } else {
219
220
      subset = rb_alloc&1;
      shift  = (rb_alloc>>1)&1;
221
222
223
224
225
226

      for (i=0; i<11; i++) {
        if ((rb_alloc&(1<<(i+2))) != 0)
          rb_alloc2[0] |= (1<<(2*i));

        //printf("rb_alloc2 (type 1) %x\n",rb_alloc2);
227
      }
228

229
      if ((shift == 0) && (subset == 1))
230
        rb_alloc2[0]<<=1;
231
      else if ((shift == 1) && (subset == 0))
232
        rb_alloc2[0]<<=4;
233
      else if ((shift == 1) && (subset == 1))
234
        rb_alloc2[0]<<=3;
235
    }
236

237
    break;
238

239
  case 50:
240
    AssertFatal(ra_header==0,"resource type 1 not supported for  N_RB_DL=50\n");
241

242
243
244
    for (i=16; i>0; i--) {
      if ((rb_alloc&(1<<i)) != 0)
	rb_alloc2[(3*(16-i))>>5] |= (7<<((3*(16-i))%32));
245
    }
246

247
248
249
250
251
252
    // bit mask across
    if ((rb_alloc2[0]>>31)==1)
      rb_alloc2[1] |= 1;
    
    if ((rb_alloc&1) != 0)
      rb_alloc2[1] |= (3<<16);
253
254
255
    break;

  case 100:
256
257
258
259
260
261
    AssertFatal(ra_header==0,"resource type 1 not supported for  N_RB_DL=100\n");
    for (i=0; i<25; i++) {
      if ((rb_alloc&(1<<(24-i))) != 0)
	rb_alloc2[(4*i)>>5] |= (0xf<<((4*i)%32));
      
      //  printf("rb_alloc2[%d] (type 0) %x (%d)\n",(4*i)>>5,rb_alloc2[(4*i)>>5],rb_alloc&(1<<i));
262
    }
263

264
265
266
    break;

  default:
winckel's avatar
winckel committed
267
268
    LOG_E(PHY,"Invalid N_RB_DL %d\n", N_RB_DL);
    DevParam (N_RB_DL, 0, 0);
269
270
271
272
273
274
275
    break;
  }

}



276
277
uint32_t conv_nprb(uint8_t ra_header,uint32_t rb_alloc,int N_RB_DL)
{
278
279
280
281
282

  uint32_t nprb=0,i;

  switch (N_RB_DL) {
  case 6:
283
    for (i=0; i<6; i++) {
284
      if ((rb_alloc&(1<<i)) != 0)
285
        nprb += 1;
286
    }
287

288
    break;
289

290
291
  case 25:
    if (ra_header == 0) {// Type 0 Allocation
292
293
294
295

      for (i=12; i>0; i--) {
        if ((rb_alloc&(1<<i)) != 0)
          nprb += 2;
296
      }
297

298
      if ((rb_alloc&1) != 0)
299
300
301
302
303
        nprb += 1;
    } else {
      for (i=0; i<11; i++) {
        if ((rb_alloc&(1<<(i+2))) != 0)
          nprb += 1;
304
305
      }
    }
306

307
    break;
308

309
310
  case 50:
    if (ra_header == 0) {// Type 0 Allocation
311
312
313
314

      for (i=0; i<16; i++) {
        if ((rb_alloc&(1<<(16-i))) != 0)
          nprb += 3;
315
      }
316

317
      if ((rb_alloc&1) != 0)
318
        nprb += 2;
319

320
321
322
323
    } else {
      for (i=0; i<17; i++) {
        if ((rb_alloc&(1<<(i+2))) != 0)
          nprb += 1;
324
325
      }
    }
326

327
    break;
328

329
330
  case 100:
    if (ra_header == 0) {// Type 0 Allocation
331
332
333
334

      for (i=0; i<25; i++) {
        if ((rb_alloc&(1<<(24-i))) != 0)
          nprb += 4;
335
      }
336
337
338
339
    } else {
      for (i=0; i<25; i++) {
        if ((rb_alloc&(1<<(i+2))) != 0)
          nprb += 1;
340
341
      }
    }
342

343
    break;
winckel's avatar
winckel committed
344
345
346
347
348

  default:
    LOG_E(PHY,"Invalide N_RB_DL %d\n", N_RB_DL);
    DevParam (N_RB_DL, 0, 0);
    break;
349
350
351
352
353
  }

  return(nprb);
}

354
355
uint16_t computeRIV(uint16_t N_RB_DL,uint16_t RBstart,uint16_t Lcrbs)
{
356

357
  uint16_t RIV;
358

359
360
361
362
  if (Lcrbs<=(1+(N_RB_DL>>1)))
    RIV = (N_RB_DL*(Lcrbs-1)) + RBstart;
  else
    RIV = (N_RB_DL*(N_RB_DL+1-Lcrbs)) + (N_RB_DL-1-RBstart);
363

364
  return(RIV);
365
366
}

367
// Convert a DCI Format 1C RIV to a Format 1A RIV
368
// This extracts the start and length in PRBs from the 1C rballoc and
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
// recomputes the RIV as if it were the 1A rballoc

uint32_t conv_1C_RIV(int32_t rballoc,uint32_t N_RB_DL) {

  int NpDLVRB,N_RB_step,LpCRBsm1,RBpstart;

  switch (N_RB_DL) {

  case 6: // N_RB_step = 2, NDLVRB = 6, NpDLVRB = 3
    NpDLVRB   = 3;
    N_RB_step = 2;
    break;
  case 25: // N_RB_step = 2, NDLVRB = 24, NpDLVRB = 12
    NpDLVRB   = 12;
    N_RB_step = 2;
    break;
  case 50: // N_RB_step = 4, NDLVRB = 46, NpDLVRB = 11
    NpDLVRB   = 11;
    N_RB_step = 4;
    break;
  case 100: // N_RB_step = 4, NDLVRB = 96, NpDLVRB = 24
    NpDLVRB   = 24;
    N_RB_step = 4;
    break;
  default:
    NpDLVRB   = 24;
    N_RB_step = 4;
    break;
  }

  // This is the 1C part from 7.1.6.3 in 36.213
  LpCRBsm1 = rballoc/NpDLVRB;
  //  printf("LpCRBs = %d\n",LpCRBsm1+1);

  if (LpCRBsm1 <= (NpDLVRB/2)) {
    RBpstart = rballoc % NpDLVRB;
  }
  else {
    LpCRBsm1 = NpDLVRB-LpCRBsm1;
    RBpstart = NpDLVRB-(rballoc%NpDLVRB);
  }
  //  printf("RBpstart %d\n",RBpstart);
  return(computeRIV(N_RB_DL,N_RB_step*RBpstart,N_RB_step*(LpCRBsm1+1)));
412

413
414
}

415
uint32_t get_prb(int N_RB_DL,int odd_slot,int vrb,int Ngap) {
416
417
418
419

  int offset;

  switch (N_RB_DL) {
420

421
422
423
  case 6:
  // N_RB_DL = tildeN_RB_DL = 6
  // Ngap = 4 , P=1, Nrow = 2, Nnull = 2
424

425
426
427
428
429
430
431
432
433
434
    switch (vrb) {
    case 0:  // even: 0->0, 1->2, odd: 0->3, 1->5
    case 1:
      return ((3*odd_slot) + 2*(vrb&3))%6;
      break;
    case 2:  // even: 2->3, 3->5, odd: 2->0, 3->2
    case 3:
      return ((3*odd_slot) + 2*(vrb&3) + 5)%6;
      break;
    case 4:  // even: 4->1, odd: 4->4
435
      return ((3*odd_slot) + 1)%6;
436
437
438
439
440
    case 5:  // even: 5->4, odd: 5->1
      return ((3*odd_slot) + 4)%6;
      break;
    }
    break;
441

442
443
444
  case 15:
    if (vrb<12) {
      if ((vrb&3) < 2)     // even: 0->0, 1->4, 4->1, 5->5, 8->2, 9->6 odd: 0->7, 1->11
445
  return(((7*odd_slot) + 4*(vrb&3) + (vrb>>2))%14) + 14*(vrb/14);
446
      else if (vrb < 12) // even: 2->7, 3->11, 6->8, 7->12, 10->9, 11->13
447
  return (((7*odd_slot) + 4*(vrb&3) + (vrb>>2) +13 )%14) + 14*(vrb/14);
448
449
450
451
452
453
454
    }
    if (vrb==12)
      return (3+(7*odd_slot)) % 14;
    if (vrb==13)
      return (10+(7*odd_slot)) % 14;
    return 14;
    break;
455

456
457
458
  case 25:
    return (((12*odd_slot) + 6*(vrb&3) + (vrb>>2))%24) + 24*(vrb/24);
    break;
459

460
461
462
463
  case 50: // P=3
    if (Ngap==0) {
      // Nrow=12,Nnull=2,NVRBDL=46,Ngap1= 27
      if (vrb>=23)
464
  offset=4;
465
      else
466
  offset=0;
467
      if (vrb<44) {
468
469
470
471
  if ((vrb&3)>=2)
    return offset+((23*odd_slot) + 12*(vrb&3) + (vrb>>2) + 45)%46;
  else
    return offset+((23*odd_slot) + 12*(vrb&3) + (vrb>>2))%46;
472
473
      }
      if (vrb==44)  // even: 44->11, odd: 45->34
474
  return offset+((23*odd_slot) + 22-12+1);
475
      if (vrb==45)  // even: 45->10, odd: 45->33
476
  return offset+((23*odd_slot) + 22+12);
477
      if (vrb==46)
478
  return offset+46+((23*odd_slot) + 23-12+1) % 46;
479
      if (vrb==47)
480
  return offset+46+((23*odd_slot) + 23+12) % 46;
481
      if (vrb==48)
482
  return offset+46+((23*odd_slot) + 23-12+1) % 46;
483
      if (vrb==49)
484
  return offset+46+((23*odd_slot) + 23+12) % 46;
485
486
487
488
    }
    else {
      // Nrow=6,Nnull=6,NVRBDL=18,Ngap1= 27
      if (vrb>=9)
489
  offset=18;
490
      else
491
  offset=0;
492

493
      if (vrb<12) {
494
495
496
497
  if ((vrb&3)>=2)
    return offset+((9*odd_slot) + 6*(vrb&3) + (vrb>>2) + 17)%18;
  else
    return offset+((9*odd_slot) + 6*(vrb&3) + (vrb>>2))%18;
498
499
      }
      else {
500
  return offset+((9*odd_slot) + 12*(vrb&1)+(vrb>>1) )%18 + 18*(vrb/18);
501
502
503
504
505
506
      }
    }
    break;
  case 75:
    // Ngap1 = 32, NVRBRL=64, P=4, Nrow= 16, Nnull=0
    if (Ngap ==0) {
507
      return ((32*odd_slot) + 16*(vrb&3) + (vrb>>2))%64 + (vrb/64);
508
509
    } else {
      // Ngap2 = 16, NVRBDL=32, Nrow=8, Nnull=0
510
      return ((16*odd_slot) + 8*(vrb&3) + (vrb>>2))%32 + (vrb/32);
511
512
513
514
515
    }
    break;
  case 100:
    // Ngap1 = 48, NVRBDL=96, Nrow=24, Nnull=0
    if (Ngap ==0) {
516
      return ((48*odd_slot) + 24*(vrb&3) + (vrb>>2))%96 + (vrb/96);
517
518
    } else {
      // Ngap2 = 16, NVRBDL=32, Nrow=8, Nnull=0
519
      return ((16*odd_slot) + 8*(vrb&3) + (vrb>>2))%32 + (vrb/32);
520
521
522
523
524
525
526
    }
    break;
  default:
    LOG_E(PHY,"Unknown N_RB_DL %d\n",N_RB_DL);
    return 0;
  }
  return 0;
527

528
529
}

530

531
532
void generate_RIV_tables()
{
533
534
535
536

  // 6RBs localized RIV
  uint8_t Lcrbs,RBstart;
  uint16_t RIV;
537
538
539
540
541
  uint32_t alloc0,allocdist0_0_even,allocdist0_0_odd,allocdist0_1_even,allocdist0_1_odd;
  uint32_t alloc1,allocdist1_0_even,allocdist1_0_odd,allocdist1_1_even,allocdist1_1_odd;
  uint32_t alloc2,allocdist2_0_even,allocdist2_0_odd,allocdist2_1_even,allocdist2_1_odd;
  uint32_t alloc3,allocdist3_0_even,allocdist3_0_odd,allocdist3_1_even,allocdist3_1_odd;
  uint32_t nVRB,nVRB_even_dist,nVRB_odd_dist;
542

543
  for (RBstart=0; RBstart<6; RBstart++) {
544
    alloc0 = 0;
545
546
    allocdist0_0_even = 0;
    allocdist0_0_odd  = 0;
547
    for (Lcrbs=1; Lcrbs<=(6-RBstart); Lcrbs++) {
548
      //printf("RBstart %d, len %d --> ",RBstart,Lcrbs);
549
550
551
552
      nVRB             = Lcrbs-1+RBstart;
      alloc0          |= (1<<nVRB);
      allocdist0_0_even |= (1<<get_prb(6,0,nVRB,0));
      allocdist0_0_odd  |= (1<<get_prb(6,1,nVRB,0));
553
      RIV=computeRIV(6,RBstart,Lcrbs);
554

555
      if (RIV>RIV_max6)
556
        RIV_max6 = RIV;
557
558
559

      //      printf("RIV %d (%d) : first_rb %d NBRB %d\n",RIV,localRIV2alloc_LUT25[RIV],RBstart,Lcrbs);
      localRIV2alloc_LUT6[RIV] = alloc0;
560
561
      distRIV2alloc_even_LUT6[RIV]  = allocdist0_0_even;
      distRIV2alloc_odd_LUT6[RIV]  = allocdist0_0_odd;
562
563
564
565
566
567
      RIV2nb_rb_LUT6[RIV]      = Lcrbs;
      RIV2first_rb_LUT6[RIV]   = RBstart;
    }
  }


568
  for (RBstart=0; RBstart<25; RBstart++) {
569
    alloc0 = 0;
570
571
    allocdist0_0_even = 0;
    allocdist0_0_odd  = 0;
572
    for (Lcrbs=1; Lcrbs<=(25-RBstart); Lcrbs++) {
573
      nVRB = Lcrbs-1+RBstart;
574
      //printf("RBstart %d, len %d --> ",RBstart,Lcrbs);
575
576
577
      alloc0     |= (1<<nVRB);
      allocdist0_0_even |= (1<<get_prb(25,0,nVRB,0));
      allocdist0_0_odd  |= (1<<get_prb(25,1,nVRB,0));
578

579
      //printf("alloc 0 %x, allocdist0_even %x, allocdist0_odd %x\n",alloc0,allocdist0_0_even,allocdist0_0_odd);
580
      RIV=computeRIV(25,RBstart,Lcrbs);
581

582
      if (RIV>RIV_max25)
583
        RIV_max25 = RIV;;
584

585
586
587
588
589
590

      localRIV2alloc_LUT25[RIV]      = alloc0;
      distRIV2alloc_even_LUT25[RIV]  = allocdist0_0_even;
      distRIV2alloc_odd_LUT25[RIV]   = allocdist0_0_odd;
      RIV2nb_rb_LUT25[RIV]           = Lcrbs;
      RIV2first_rb_LUT25[RIV]        = RBstart;
591
    }
592
593
594
  }


595
  for (RBstart=0; RBstart<50; RBstart++) {
596
597
    alloc0 = 0;
    alloc1 = 0;
598
599
600
601
602
603
604
605
    allocdist0_0_even=0;
    allocdist1_0_even=0;
    allocdist0_0_odd=0;
    allocdist1_0_odd=0;
    allocdist0_1_even=0;
    allocdist1_1_even=0;
    allocdist0_1_odd=0;
    allocdist1_1_odd=0;
606
607

    for (Lcrbs=1; Lcrbs<=(50-RBstart); Lcrbs++) {
608

609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
      nVRB = Lcrbs-1+RBstart;


      if (nVRB<32)
        alloc0 |= (1<<nVRB);
      else
        alloc1 |= (1<<(nVRB-32));

      // Distributed Gap1, even slot
      nVRB_even_dist = get_prb(50,0,nVRB,0);
      if (nVRB_even_dist<32)
        allocdist0_0_even |= (1<<nVRB_even_dist);
      else
        allocdist1_0_even |= (1<<(nVRB_even_dist-32));

      // Distributed Gap1, odd slot
      nVRB_odd_dist = get_prb(50,1,nVRB,0);
      if (nVRB_odd_dist<32)
        allocdist0_0_odd |= (1<<nVRB_odd_dist);
628
      else
629
        allocdist1_0_odd |= (1<<(nVRB_odd_dist-32));
630

631
632
633
634
      // Distributed Gap2, even slot
      nVRB_even_dist = get_prb(50,0,nVRB,1);
      if (nVRB_even_dist<32)
        allocdist0_1_even |= (1<<nVRB_even_dist);
635
      else
636
637
638
639
640
641
642
643
        allocdist1_1_even |= (1<<(nVRB_even_dist-32));

      // Distributed Gap2, odd slot
      nVRB_odd_dist = get_prb(50,1,nVRB,1);
      if (nVRB_odd_dist<32)
        allocdist0_1_odd |= (1<<nVRB_odd_dist);
      else
        allocdist1_1_odd |= (1<<(nVRB_odd_dist-32));
644
645

      RIV=computeRIV(50,RBstart,Lcrbs);
646

647
      if (RIV>RIV_max50)
648
        RIV_max50 = RIV;
649
650

      //      printf("RIV %d : first_rb %d NBRB %d\n",RIV,RBstart,Lcrbs);
651
652
653
654
655
656
657
658
659
660
      localRIV2alloc_LUT50_0[RIV]      = alloc0;
      localRIV2alloc_LUT50_1[RIV]      = alloc1;
      distRIV2alloc_gap0_even_LUT50_0[RIV]  = allocdist0_0_even;
      distRIV2alloc_gap0_even_LUT50_1[RIV]  = allocdist1_0_even;
      distRIV2alloc_gap0_odd_LUT50_0[RIV]   = allocdist0_0_odd;
      distRIV2alloc_gap0_odd_LUT50_1[RIV]   = allocdist1_0_odd;
      distRIV2alloc_gap1_even_LUT50_0[RIV]  = allocdist0_1_even;
      distRIV2alloc_gap1_even_LUT50_1[RIV]  = allocdist1_1_even;
      distRIV2alloc_gap1_odd_LUT50_0[RIV]   = allocdist0_1_odd;
      distRIV2alloc_gap1_odd_LUT50_1[RIV]   = allocdist1_1_odd;
661
662
663
664
665
666
      RIV2nb_rb_LUT50[RIV]        = Lcrbs;
      RIV2first_rb_LUT50[RIV]     = RBstart;
    }
  }


667
  for (RBstart=0; RBstart<100; RBstart++) {
668
669
670
671
    alloc0 = 0;
    alloc1 = 0;
    alloc2 = 0;
    alloc3 = 0;
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
    allocdist0_0_even=0;
    allocdist1_0_even=0;
    allocdist2_0_even=0;
    allocdist3_0_even=0;
    allocdist0_0_odd=0;
    allocdist1_0_odd=0;
    allocdist2_0_odd=0;
    allocdist3_0_odd=0;
    allocdist0_1_even=0;
    allocdist1_1_even=0;
    allocdist2_1_even=0;
    allocdist3_1_even=0;
    allocdist0_1_odd=0;
    allocdist1_1_odd=0;
    allocdist2_1_odd=0;
    allocdist3_1_odd=0;
688

689
    for (Lcrbs=1; Lcrbs<=(100-RBstart); Lcrbs++) {
690

691
692
693
694
695
      nVRB = Lcrbs-1+RBstart;

      if (nVRB<32)
        alloc0 |= (1<<nVRB);
      else if (nVRB<64)
696
        alloc1 |= (1<<(nVRB-32));
697
      else if (nVRB<96)
698
        alloc2 |= (1<<(nVRB-64));
699
      else
700
        alloc3 |= (1<<(nVRB-96));
701
702
703
704

      // Distributed Gap1, even slot
      nVRB_even_dist = get_prb(100,0,nVRB,0);

705
//      if ((RBstart==0) && (Lcrbs<=8))
706
//  printf("nVRB %d => nVRB_even_dist %d\n",nVRB,nVRB_even_dist);
707
708
709
710
711
712
713


      if (nVRB_even_dist<32)
        allocdist0_0_even |= (1<<nVRB_even_dist);
      else if (nVRB_even_dist<64)
        allocdist1_0_even |= (1<<(nVRB_even_dist-32));
      else if (nVRB_even_dist<96)
714
  allocdist2_0_even |= (1<<(nVRB_even_dist-64));
715
      else
716
  allocdist3_0_even |= (1<<(nVRB_even_dist-96));
717
/*      if ((RBstart==0) && (Lcrbs<=8))
718
719
720
721
722
723
  printf("rballoc =>(%08x.%08x.%08x.%08x)\n",
         allocdist0_0_even,
         allocdist1_0_even,
         allocdist2_0_even,
         allocdist3_0_even
         );
724
*/
725
726
727
728
729
730
731
      // Distributed Gap1, odd slot
      nVRB_odd_dist = get_prb(100,1,nVRB,0);
      if (nVRB_odd_dist<32)
        allocdist0_0_odd |= (1<<nVRB_odd_dist);
      else if (nVRB_odd_dist<64)
        allocdist1_0_odd |= (1<<(nVRB_odd_dist-32));
      else if (nVRB_odd_dist<96)
732
  allocdist2_0_odd |= (1<<(nVRB_odd_dist-64));
733
      else
734
  allocdist3_0_odd |= (1<<(nVRB_odd_dist-96));
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
      // Distributed Gap2, even slot
      nVRB_even_dist = get_prb(100,0,nVRB,1);
      if (nVRB_even_dist<32)
        allocdist0_1_even |= (1<<nVRB_even_dist);
      else if (nVRB_even_dist<64)
        allocdist1_1_even |= (1<<(nVRB_even_dist-32));
      else if (nVRB_even_dist<96)
  allocdist2_1_even |= (1<<(nVRB_even_dist-64));
      else
  allocdist3_1_even |= (1<<(nVRB_even_dist-96));


      // Distributed Gap2, odd slot
      nVRB_odd_dist = get_prb(100,1,nVRB,1);
      if (nVRB_odd_dist<32)
        allocdist0_1_odd |= (1<<nVRB_odd_dist);
      else if (nVRB_odd_dist<64)
        allocdist1_1_odd |= (1<<(nVRB_odd_dist-32));
      else if (nVRB_odd_dist<96)
  allocdist2_1_odd |= (1<<(nVRB_odd_dist-64));
      else
  allocdist3_1_odd |= (1<<(nVRB_odd_dist-96));


      RIV=computeRIV(100,RBstart,Lcrbs);

      if (RIV>RIV_max100)
        RIV_max100 = RIV;

      //      printf("RIV %d : first_rb %d NBRB %d\n",RIV,RBstart,Lcrbs);
      localRIV2alloc_LUT100_0[RIV] = alloc0;
      localRIV2alloc_LUT100_1[RIV] = alloc1;
      localRIV2alloc_LUT100_2[RIV] = alloc2;
      localRIV2alloc_LUT100_3[RIV] = alloc3;
      distRIV2alloc_gap0_even_LUT100_0[RIV]  = allocdist0_0_even;
      distRIV2alloc_gap0_even_LUT100_1[RIV]  = allocdist1_0_even;
      distRIV2alloc_gap0_even_LUT100_2[RIV]  = allocdist2_0_even;
      distRIV2alloc_gap0_even_LUT100_3[RIV]  = allocdist3_0_even;
      distRIV2alloc_gap0_odd_LUT100_0[RIV]   = allocdist0_0_odd;
      distRIV2alloc_gap0_odd_LUT100_1[RIV]   = allocdist1_0_odd;
      distRIV2alloc_gap0_odd_LUT100_2[RIV]   = allocdist2_0_odd;
      distRIV2alloc_gap0_odd_LUT100_3[RIV]   = allocdist3_0_odd;
      distRIV2alloc_gap1_even_LUT100_0[RIV]  = allocdist0_1_even;
      distRIV2alloc_gap1_even_LUT100_1[RIV]  = allocdist1_1_even;
      distRIV2alloc_gap1_even_LUT100_2[RIV]  = allocdist2_1_even;
      distRIV2alloc_gap1_even_LUT100_3[RIV]  = allocdist3_1_even;
      distRIV2alloc_gap1_odd_LUT100_0[RIV]   = allocdist0_1_odd;
      distRIV2alloc_gap1_odd_LUT100_1[RIV]   = allocdist1_1_odd;
      distRIV2alloc_gap1_odd_LUT100_2[RIV]   = allocdist2_1_odd;
      distRIV2alloc_gap1_odd_LUT100_3[RIV]   = allocdist3_1_odd;

      RIV2nb_rb_LUT100[RIV]      = Lcrbs;
      RIV2first_rb_LUT100[RIV]   = RBstart;
    }
  }
}

// Ngap = 3, N_VRB_DL=6, P=1, N_row=2, N_null=4*2-6=2
// permutation for even slots :
//    n_PRB'(0,2,4) = (0,1,2), n_PRB'(1,3,5) = (4,5,6)
//    n_PRB''(0,1,2,3) = (0,2,4,6)
//    => n_tilde_PRB(5) = (4)
//       n_tilde_PRB(4) = (1)
//       n_tilde_PRB(2,3) = (3,5)
//       n_tilde_PRB(0,1) = (0,2)

803
#ifndef UE_EXPANSION
804
int8_t find_dlsch(uint16_t rnti, PHY_VARS_eNB *eNB,find_type_t type)
805
806
807
#else
int16_t find_dlsch(uint16_t rnti, PHY_VARS_eNB *eNB,find_type_t type)
#endif
808
{
809
#ifndef UE_EXPANSION
810
811
  uint8_t i;
  int8_t first_free_index=-1;
812
813
814
815
#else
  uint16_t i;
  int16_t first_free_index=-1;
#endif
816
817
818
819
820
821

  AssertFatal(eNB!=NULL,"eNB is null\n");
  for (i=0; i<NUMBER_OF_UE_MAX; i++) {
    AssertFatal(eNB->dlsch[i]!=NULL,"eNB->dlsch[%d] is null\n",i);
    AssertFatal(eNB->dlsch[i]!=NULL,"eNB->dlsch[%d][0] is null\n",i);
    LOG_D(PHY,"searching for rnti %x : UE index %d=> harq_mask %x, rnti %x, first_free_index %d\n",
Cedric Roux's avatar
Cedric Roux committed
822
          rnti,i,eNB->dlsch[i][0]->harq_mask,eNB->dlsch[i][0]->rnti,first_free_index);
823
    if ((eNB->dlsch[i][0]->harq_mask >0) &&
Cedric Roux's avatar
Cedric Roux committed
824
        (eNB->dlsch[i][0]->rnti==rnti))       return i;
825
826
    else if ((eNB->dlsch[i][0]->harq_mask == 0) && (first_free_index==-1)) first_free_index=i;
  }
Cedric Roux's avatar
Cedric Roux committed
827
828
  if (type == SEARCH_EXIST) return -1;
  if (first_free_index != -1)
829
    eNB->dlsch[first_free_index][0]->rnti = 0;
Cedric Roux's avatar
Cedric Roux committed
830
  return first_free_index;
831
832
}

833
#ifndef UE_EXPANSION
834
int8_t find_ulsch(uint16_t rnti, PHY_VARS_eNB *eNB,find_type_t type)
835
836
837
#else
int16_t find_ulsch(uint16_t rnti, PHY_VARS_eNB *eNB,find_type_t type)
#endif
838
{
839
#ifndef UE_EXPANSION
840
841
  uint8_t i;
  int8_t first_free_index=-1;
842
843
844
845
#else
  uint16_t i;
  int16_t first_free_index=-1;
#endif
846

847
  AssertFatal(eNB!=NULL,"eNB is null\n");
848
  for (i=0; i<NUMBER_OF_UE_MAX; i++) {
Cedric Roux's avatar
Cedric Roux committed
849
    AssertFatal(eNB->ulsch[i]!=NULL,"eNB->ulsch[%d] is null\n",i);
850
    if ((eNB->ulsch[i]->harq_mask >0) &&
Cedric Roux's avatar
Cedric Roux committed
851
        (eNB->ulsch[i]->rnti==rnti))       return i;
852
853
    else if ((eNB->ulsch[i]->harq_mask == 0) && (first_free_index==-1)) first_free_index=i;
  }
Cedric Roux's avatar
Cedric Roux committed
854
855
  if (type == SEARCH_EXIST) return -1;
  if (first_free_index != -1)
856
    eNB->ulsch[first_free_index]->rnti = 0;
Cedric Roux's avatar
Cedric Roux committed
857
  return first_free_index;
858
859
860
861
862
863
864
865
866
867
868
869
870
871
872
873
874
875
876
877
878
879
880
}


uint32_t get_rballoc(vrb_t vrb_type,uint16_t rb_alloc_dci)
{

  return(localRIV2alloc_LUT25[rb_alloc_dci]);

}

/*
uint8_t get_transmission_mode(module_id_t Mod_id, uint8_t CC_id, rnti_t rnti)
{
  unsigned char UE_id;

  // find the UE_index corresponding to rnti
  UE_id = find_ue(rnti,RC.eNB[Mod_id][CC_id]);
  DevAssert( UE_id != (unsigned char)-1 );

  return(RC.eNB[Mod_id][CC_id]->transmission_mode[UE_id]);
}
*/

881
882
883
884
885
void fill_pdcch_order(PHY_VARS_eNB *eNB,eNB_rxtx_proc_t *proc,DCI_ALLOC_t *dci_alloc,nfapi_dl_config_dci_dl_pdu *pdu)
{
  LTE_DL_FRAME_PARMS                *fp      = &eNB->frame_parms;
  uint8_t                           *dci_pdu = &dci_alloc->dci_pdu[0];
  nfapi_dl_config_dci_dl_pdu_rel8_t *rel8    = &pdu->dci_dl_pdu_rel8;
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
  dci_alloc->firstCCE = rel8->cce_idx;
  dci_alloc->L        = rel8->aggregation_level;
  dci_alloc->rnti     = rel8->rnti;
  dci_alloc->harq_pid = rel8->harq_process;
  dci_alloc->ra_flag  = 0;
  dci_alloc->format   = format1A;

  LOG_D(PHY,"NFAPI: DCI format %d, nCCE %d, L %d, rnti %x,harq_pid %d\n",
        rel8->dci_format,rel8->cce_idx,rel8->aggregation_level,rel8->rnti,rel8->harq_process);

  switch (fp->N_RB_DL) {
  case 6:
    if (fp->frame_type == TDD) {
      dci_alloc->dci_length                         = sizeof_DCI1A_1_5MHz_TDD_1_6_t;
      ((DCI1A_1_5MHz_TDD_1_6_t *)dci_pdu)->type     = 1;
      ((DCI1A_1_5MHz_TDD_1_6_t *)dci_pdu)->vrb_type = rel8->virtual_resource_block_assignment_flag;
      ((DCI1A_1_5MHz_TDD_1_6_t *)dci_pdu)->mcs      = rel8->mcs_1;
      ((DCI1A_1_5MHz_TDD_1_6_t *)dci_pdu)->ndi      = rel8->new_data_indicator_1;
      ((DCI1A_1_5MHz_TDD_1_6_t *)dci_pdu)->rballoc  = rel8->resource_block_coding;
      ((DCI1A_1_5MHz_TDD_1_6_t *)dci_pdu)->rv       = rel8->redundancy_version_1;
      ((DCI1A_1_5MHz_TDD_1_6_t *)dci_pdu)->TPC      = rel8->tpc;
      ((DCI1A_1_5MHz_TDD_1_6_t *)dci_pdu)->harq_pid = rel8->harq_process;
      ((DCI1A_1_5MHz_TDD_1_6_t *)dci_pdu)->dai      = rel8->downlink_assignment_index;
    } else {
      dci_alloc->dci_length                         = sizeof_DCI1A_1_5MHz_FDD_t;
      ((DCI1A_1_5MHz_FDD_t *)dci_pdu)->type         = 1;
      ((DCI1A_1_5MHz_FDD_t *)dci_pdu)->vrb_type     = rel8->virtual_resource_block_assignment_flag;
      ((DCI1A_1_5MHz_FDD_t *)dci_pdu)->mcs          = rel8->mcs_1;
      ((DCI1A_1_5MHz_FDD_t *)dci_pdu)->ndi          = rel8->new_data_indicator_1;
      ((DCI1A_1_5MHz_FDD_t *)dci_pdu)->rballoc      = rel8->resource_block_coding;
      ((DCI1A_1_5MHz_FDD_t *)dci_pdu)->rv           = rel8->redundancy_version_1;
      ((DCI1A_1_5MHz_FDD_t *)dci_pdu)->TPC          = rel8->tpc;
      ((DCI1A_1_5MHz_FDD_t *)dci_pdu)->harq_pid     = rel8->harq_process;
      //      printf("FDD 1A: mcs %d, rballoc %x,rv %d, NPRB %d\n",mcs,rballoc,rv,NPRB);
    }
    break;
  case 25:
    if (fp->frame_type == TDD) {
      dci_alloc->dci_length                         = sizeof_DCI1A_5MHz_TDD_1_6_t;
      ((DCI1A_5MHz_TDD_1_6_t *)dci_pdu)->type       = 1;
      ((DCI1A_5MHz_TDD_1_6_t *)dci_pdu)->vrb_type   = rel8->virtual_resource_block_assignment_flag;
      ((DCI1A_5MHz_TDD_1_6_t *)dci_pdu)->mcs        = rel8->mcs_1;
      ((DCI1A_5MHz_TDD_1_6_t *)dci_pdu)->ndi        = rel8->new_data_indicator_1;
      ((DCI1A_5MHz_TDD_1_6_t *)dci_pdu)->rballoc    = rel8->resource_block_coding;
      ((DCI1A_5MHz_TDD_1_6_t *)dci_pdu)->rv         = rel8->redundancy_version_1;
      ((DCI1A_5MHz_TDD_1_6_t *)dci_pdu)->TPC        = rel8->tpc;
      ((DCI1A_5MHz_TDD_1_6_t *)dci_pdu)->harq_pid   = rel8->harq_process;
      ((DCI1A_5MHz_TDD_1_6_t *)dci_pdu)->dai      = rel8->downlink_assignment_index;
       //        printf("TDD 1A: mcs %d, rballoc %x,rv %d, NPRB %d\n",mcs,rballoc,rv,NPRB);
    } else {
      dci_alloc->dci_length                         = sizeof_DCI1A_5MHz_FDD_t;
      ((DCI1A_5MHz_FDD_t *)dci_pdu)->type           = 1;
      ((DCI1A_5MHz_FDD_t *)dci_pdu)->vrb_type       = rel8->virtual_resource_block_assignment_flag;
      ((DCI1A_5MHz_FDD_t *)dci_pdu)->mcs            = rel8->mcs_1;
      ((DCI1A_5MHz_FDD_t *)dci_pdu)->ndi            = rel8->new_data_indicator_1;
      ((DCI1A_5MHz_FDD_t *)dci_pdu)->rballoc        = rel8->resource_block_coding;
      ((DCI1A_5MHz_FDD_t *)dci_pdu)->rv             = rel8->redundancy_version_1;
      ((DCI1A_5MHz_FDD_t *)dci_pdu)->TPC            = rel8->tpc;
      ((DCI1A_5MHz_FDD_t *)dci_pdu)->harq_pid       = rel8->harq_process;
      //      printf("FDD 1A: mcs %d, rballoc %x,rv %d, NPRB %d\n",mcs,rballoc,rv,NPRB);
    }
    break;
  case 50:
    if (fp->frame_type == TDD) {
      dci_alloc->dci_length                         = sizeof_DCI1A_10MHz_TDD_1_6_t;
      ((DCI1A_10MHz_TDD_1_6_t *)dci_pdu)->type      = 1;
      ((DCI1A_10MHz_TDD_1_6_t *)dci_pdu)->vrb_type  = rel8->virtual_resource_block_assignment_flag;
      ((DCI1A_10MHz_TDD_1_6_t *)dci_pdu)->mcs       = rel8->mcs_1;
      ((DCI1A_10MHz_TDD_1_6_t *)dci_pdu)->ndi       = rel8->new_data_indicator_1;
      ((DCI1A_10MHz_TDD_1_6_t *)dci_pdu)->rballoc   = rel8->resource_block_coding;
      ((DCI1A_10MHz_TDD_1_6_t *)dci_pdu)->rv        = rel8->redundancy_version_1;
      ((DCI1A_10MHz_TDD_1_6_t *)dci_pdu)->TPC       = rel8->tpc;
      ((DCI1A_10MHz_TDD_1_6_t *)dci_pdu)->harq_pid  = rel8->harq_process;
      ((DCI1A_10MHz_TDD_1_6_t *)dci_pdu)->dai       = rel8->downlink_assignment_index;
      //        printf("TDD 1A: mcs %d, rballoc %x,rv %d, NPRB %d\n",mcs,rballoc,rv,NPRB);
    } else {
      dci_alloc->dci_length                         = sizeof_DCI1A_10MHz_FDD_t;
      ((DCI1A_10MHz_FDD_t *)dci_pdu)->type          = 1;
      ((DCI1A_10MHz_FDD_t *)dci_pdu)->vrb_type      = rel8->virtual_resource_block_assignment_flag;
      ((DCI1A_10MHz_FDD_t *)dci_pdu)->mcs           = rel8->mcs_1;
      ((DCI1A_10MHz_FDD_t *)dci_pdu)->ndi           = rel8->new_data_indicator_1;
      ((DCI1A_10MHz_FDD_t *)dci_pdu)->rballoc       = rel8->resource_block_coding;
      ((DCI1A_10MHz_FDD_t *)dci_pdu)->rv            = rel8->redundancy_version_1;
      ((DCI1A_10MHz_FDD_t *)dci_pdu)->TPC           = rel8->tpc;
      ((DCI1A_10MHz_FDD_t *)dci_pdu)->harq_pid      = rel8->harq_process;
      //      printf("FDD 1A: mcs %d, rballoc %x,rv %d, NPRB %d\n",mcs,rballoc,rv,NPRB);
    }
    break;
  case 100:
    if (fp->frame_type == TDD) {
      dci_alloc->dci_length                         = sizeof_DCI1A_20MHz_TDD_1_6_t;
      ((DCI1A_20MHz_TDD_1_6_t *)dci_pdu)->type      = 1;
      ((DCI1A_20MHz_TDD_1_6_t *)dci_pdu)->vrb_type  = rel8->virtual_resource_block_assignment_flag;
      ((DCI1A_20MHz_TDD_1_6_t *)dci_pdu)->mcs       = rel8->mcs_1;
      ((DCI1A_20MHz_TDD_1_6_t *)dci_pdu)->ndi       = rel8->new_data_indicator_1;
      ((DCI1A_20MHz_TDD_1_6_t *)dci_pdu)->rballoc   = rel8->resource_block_coding;
      ((DCI1A_20MHz_TDD_1_6_t *)dci_pdu)->rv        = rel8->redundancy_version_1;
      ((DCI1A_20MHz_TDD_1_6_t *)dci_pdu)->TPC       = rel8->tpc;
      ((DCI1A_20MHz_TDD_1_6_t *)dci_pdu)->harq_pid  = rel8->harq_process;
      ((DCI1A_20MHz_TDD_1_6_t *)dci_pdu)->dai       = rel8->downlink_assignment_index;
      //        printf("TDD 1A: mcs %d, rballoc %x,rv %d, NPRB %d\n",mcs,rballoc,rv,NPRB);
    } else {
      dci_alloc->dci_length                         = sizeof_DCI1A_20MHz_FDD_t;
      ((DCI1A_20MHz_FDD_t *)dci_pdu)->type          = 1;
      ((DCI1A_20MHz_FDD_t *)dci_pdu)->vrb_type      = rel8->virtual_resource_block_assignment_flag;
      ((DCI1A_20MHz_FDD_t *)dci_pdu)->mcs           = rel8->mcs_1;
      ((DCI1A_20MHz_FDD_t *)dci_pdu)->ndi           = rel8->new_data_indicator_1;
      ((DCI1A_20MHz_FDD_t *)dci_pdu)->rballoc       = rel8->resource_block_coding;
      ((DCI1A_20MHz_FDD_t *)dci_pdu)->rv            = rel8->redundancy_version_1;
      ((DCI1A_20MHz_FDD_t *)dci_pdu)->TPC           = rel8->tpc;
      ((DCI1A_20MHz_FDD_t *)dci_pdu)->harq_pid      = rel8->harq_process;
      //      printf("FDD 1A: mcs %d, rballoc %x,rv %d, NPRB %d\n",mcs,rballoc,rv,NPRB);
    }
    break;
  }
1002

1003
1004
1005
1006
1007
1008
1009
  LOG_I(PHY,"%d.%d: DCI 1A: rnti %x, PDCCH order to do PRACH\n",
        proc->frame_tx, proc->subframe_tx, rel8->rnti);
}

void fill_dci_and_dlsch(PHY_VARS_eNB *eNB,eNB_rxtx_proc_t *proc,DCI_ALLOC_t *dci_alloc,nfapi_dl_config_dci_dl_pdu *pdu)
{
  LTE_DL_FRAME_PARMS *fp = &eNB->frame_parms;
1010
1011
  uint8_t *dci_pdu = &dci_alloc->dci_pdu[0];
  nfapi_dl_config_dci_dl_pdu_rel8_t *rel8 = &pdu->dci_dl_pdu_rel8;
1012

1013
1014
1015
1016
1017
1018
1019
1020
1021
1022
1023
1024
1025
1026
  /* check if this is a DCI 1A PDCCH order for RAPROC */
  if (rel8->dci_format == NFAPI_DL_DCI_FORMAT_1A && rel8->rnti_type == 1) {
    int full_rb;
    switch (fp->N_RB_DL) {
    case 6:   full_rb = 63;   break;
    case 25:  full_rb = 511;  break;
    case 50:  full_rb = 2047; break;
    case 100: full_rb = 8191; break;
    default:  abort();
    }
    if (rel8->resource_block_coding == full_rb)
      return fill_pdcch_order(eNB, proc, dci_alloc, pdu);
  }

1027
1028
1029
1030
1031
1032
1033
1034
1035
1036
  LTE_eNB_DLSCH_t *dlsch0=NULL,*dlsch1=NULL;
  LTE_DL_eNB_HARQ_t *dlsch0_harq=NULL,*dlsch1_harq=NULL;
  int beamforming_mode = 0;
  int UE_id=-1;
  int subframe = proc->subframe_tx;
  int NPRB;
  int TB0_active;
  int TB1_active;
  uint16_t DL_pmi_single=0; // This should be taken from DLSCH parameters for PUSCH precoding
  uint8_t I_mcs = 0;
1037
 
1038
1039
1040
1041
1042
1043
  dci_alloc->firstCCE = rel8->cce_idx;
  dci_alloc->L        = rel8->aggregation_level;
  dci_alloc->rnti     = rel8->rnti;
  dci_alloc->harq_pid = rel8->harq_process;
  dci_alloc->ra_flag  = 0;

1044
  LOG_D(PHY,"NFAPI: DCI format %d, nCCE %d, L %d, rnti %x,harq_pid %d\n",
1045
1046
1047
1048
1049
1050
1051
1052
	rel8->dci_format,rel8->cce_idx,rel8->aggregation_level,rel8->rnti,rel8->harq_process);
  if ((rel8->rnti_type == 2 ) && (rel8->rnti != SI_RNTI) && (rel8->rnti != P_RNTI)) dci_alloc->ra_flag = 1;

  UE_id = find_dlsch(rel8->rnti,eNB,SEARCH_EXIST_OR_FREE);
  AssertFatal(UE_id!=-1,"no free or exiting dlsch_context\n");
  AssertFatal(UE_id<NUMBER_OF_UE_MAX,"returned UE_id %d >= %d(NUMBER_OF_UE_MAX)\n",UE_id,NUMBER_OF_UE_MAX);
  dlsch0 = eNB->dlsch[UE_id][0];
  dlsch1 = eNB->dlsch[UE_id][1];
1053
1054

    
1055
1056
1057
1058
1059
  beamforming_mode                          = eNB->transmission_mode[(uint8_t)UE_id]<7?0:eNB->transmission_mode[(uint8_t)UE_id];
  dlsch0_harq                               = dlsch0->harq_processes[rel8->harq_process];
  dlsch0_harq->codeword                     = 0;
  dlsch1_harq                               = dlsch1->harq_processes[rel8->harq_process];
  dlsch1_harq->codeword                     = 1;
1060
  dlsch0->subframe_tx[subframe]             = 1;
1061
1062
1063
1064
  if (dlsch0->rnti != rel8->rnti) { // if rnti of dlsch is not the same as in the config, this is a new entry
    dlsch0_harq->round=0;
    dlsch0->harq_mask=0;
  }
1065
1066
1067
1068
1069
1070
1071
  if ((dlsch0->harq_mask & (1<<rel8->harq_process)) > 0 ) {
    if (rel8->new_data_indicator_1 != dlsch0_harq->ndi)
      dlsch0_harq->round=0;
  }
  else  { // process is inactive, so activate and set round to 0
    dlsch0_harq->round=0;
  }
1072
1073
  dlsch0_harq->ndi = rel8->new_data_indicator_1;

1074
1075
1076
  dlsch0->active        = 1;
  if (rel8->rnti_type == 2)
      dlsch0_harq->round    = 0;
Cedric Roux's avatar
Cedric Roux committed
1077
1078
LOG_D(PHY,"NFAPI: harq_pid %d harq_mask %x, round %d ndi (%d,%d) rnti type %d\n",rel8->harq_process,dlsch0->harq_mask,dlsch0_harq->round,
	dlsch0_harq->ndi,rel8->new_data_indicator_1, rel8->rnti_type);
1079

1080
1081
1082
  switch (rel8->dci_format) {

  case NFAPI_DL_DCI_FORMAT_1A:
1083
1084
1085
1086
1087
1088

      AssertFatal(rel8->resource_block_coding < 8192, "Frame %d, Subframe %d: rel8->resource_block_coding (%p) %u >= 8192 (rnti %x, rnti_type %d, format %d, harq_id %d\n",
                proc->frame_tx,subframe,
                &rel8->resource_block_coding,rel8->resource_block_coding,rel8->rnti,rel8->rnti_type,rel8->dci_format,rel8->harq_process);
  

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
    dci_alloc->format     = format1A;

    switch (fp->N_RB_DL) {
    case 6:
      if (fp->frame_type == TDD) {
	dci_alloc->dci_length                         = sizeof_DCI1A_1_5MHz_TDD_1_6_t; 
        ((DCI1A_1_5MHz_TDD_1_6_t *)dci_pdu)->type     = 1;
        ((DCI1A_1_5MHz_TDD_1_6_t *)dci_pdu)->vrb_type = rel8->virtual_resource_block_assignment_flag;
        ((DCI1A_1_5MHz_TDD_1_6_t *)dci_pdu)->mcs      = rel8->mcs_1;
        ((DCI1A_1_5MHz_TDD_1_6_t *)dci_pdu)->ndi      = rel8->new_data_indicator_1;
        ((DCI1A_1_5MHz_TDD_1_6_t *)dci_pdu)->rballoc  = rel8->resource_block_coding;
        ((DCI1A_1_5MHz_TDD_1_6_t *)dci_pdu)->rv       = rel8->redundancy_version_1;
        ((DCI1A_1_5MHz_TDD_1_6_t *)dci_pdu)->TPC      = rel8->tpc;
        ((DCI1A_1_5MHz_TDD_1_6_t *)dci_pdu)->harq_pid = rel8->harq_process;
        ((DCI1A_1_5MHz_TDD_1_6_t *)dci_pdu)->dai      = rel8->downlink_assignment_index;
	
      } else {
	dci_alloc->dci_length                         = sizeof_DCI1A_1_5MHz_FDD_t; 
	((DCI1A_1_5MHz_FDD_t *)dci_pdu)->type         = 1;
        ((DCI1A_1_5MHz_FDD_t *)dci_pdu)->vrb_type     = rel8->virtual_resource_block_assignment_flag;
        ((DCI1A_1_5MHz_FDD_t *)dci_pdu)->mcs          = rel8->mcs_1;
        ((DCI1A_1_5MHz_FDD_t *)dci_pdu)->ndi          = rel8->new_data_indicator_1;
        ((DCI1A_1_5MHz_FDD_t *)dci_pdu)->rballoc      = rel8->resource_block_coding;
        ((DCI1A_1_5MHz_FDD_t *)dci_pdu)->rv           = rel8->redundancy_version_1;
        ((DCI1A_1_5MHz_FDD_t *)dci_pdu)->TPC          = rel8->tpc;
        ((DCI1A_1_5MHz_FDD_t *)dci_pdu)->harq_pid     = rel8->harq_process;
        //      printf("FDD 1A: mcs %d, rballoc %x,rv %d, NPRB %d\n",mcs,rballoc,rv,NPRB);
      }
      AssertFatal(rel8->virtual_resource_block_assignment_flag==LOCALIZED,"Distributed RB allocation not done yet\n");
      dlsch0_harq->rb_alloc[0]    = localRIV2alloc_LUT6[rel8->resource_block_coding];
      dlsch0_harq->vrb_type           =  rel8->virtual_resource_block_assignment_flag;
      dlsch0_harq->nb_rb          = RIV2nb_rb_LUT6[rel8->resource_block_coding];//NPRB;
      break;
    case 25:
      if (fp->frame_type == TDD) {
	dci_alloc->dci_length                         = sizeof_DCI1A_5MHz_TDD_1_6_t; 
        ((DCI1A_5MHz_TDD_1_6_t *)dci_pdu)->type       = 1;
        ((DCI1A_5MHz_TDD_1_6_t *)dci_pdu)->vrb_type   = rel8->virtual_resource_block_assignment_flag;
        ((DCI1A_5MHz_TDD_1_6_t *)dci_pdu)->mcs        = rel8->mcs_1;
        ((DCI1A_5MHz_TDD_1_6_t *)dci_pdu)->ndi        = rel8->new_data_indicator_1;
        ((DCI1A_5MHz_TDD_1_6_t *)dci_pdu)->rballoc    = rel8->resource_block_coding;
        ((DCI1A_5MHz_TDD_1_6_t *)dci_pdu)->rv         = rel8->redundancy_version_1;
        ((DCI1A_5MHz_TDD_1_6_t *)dci_pdu)->TPC        = rel8->tpc;
        ((DCI1A_5MHz_TDD_1_6_t *)dci_pdu)->harq_pid   = rel8->harq_process;
        ((DCI1A_5MHz_TDD_1_6_t *)dci_pdu)->dai      = rel8->downlink_assignment_index; 	
         //        printf("TDD 1A: mcs %d, rballoc %x,rv %d, NPRB %d\n",mcs,rballoc,rv,NPRB);
      } else {
	dci_alloc->dci_length                         = sizeof_DCI1A_5MHz_FDD_t; 
	((DCI1A_5MHz_FDD_t *)dci_pdu)->type           = 1;
        ((DCI1A_5MHz_FDD_t *)dci_pdu)->vrb_type       = rel8->virtual_resource_block_assignment_flag;
        ((DCI1A_5MHz_FDD_t *)dci_pdu)->mcs            = rel8->mcs_1;
        ((DCI1A_5MHz_FDD_t *)dci_pdu)->ndi            = rel8->new_data_indicator_1;
        ((DCI1A_5MHz_FDD_t *)dci_pdu)->rballoc        = rel8->resource_block_coding;
        ((DCI1A_5MHz_FDD_t *)dci_pdu)->rv             = rel8->redundancy_version_1;
        ((DCI1A_5MHz_FDD_t *)dci_pdu)->TPC            = rel8->tpc;
        ((DCI1A_5MHz_FDD_t *)dci_pdu)->harq_pid       = rel8->harq_process;
        //      printf("FDD 1A: mcs %d, rballoc %x,rv %d, NPRB %d\n",mcs,rballoc,rv,NPRB);
      }
      AssertFatal(rel8->virtual_resource_block_assignment_flag==LOCALIZED,"Distributed RB allocation not done yet\n");
      dlsch0_harq->rb_alloc[0]    = localRIV2alloc_LUT25[rel8->resource_block_coding];
      dlsch0_harq->vrb_type           =  rel8->virtual_resource_block_assignment_flag;
      dlsch0_harq->nb_rb          = RIV2nb_rb_LUT25[rel8->resource_block_coding];//NPRB;
      break;
    case 50:
      if (fp->frame_type == TDD) {
	dci_alloc->dci_length                         = sizeof_DCI1A_10MHz_TDD_1_6_t; 
        ((DCI1A_10MHz_TDD_1_6_t *)dci_pdu)->type      = 1;
        ((DCI1A_10MHz_TDD_1_6_t *)dci_pdu)->vrb_type  = rel8->virtual_resource_block_assignment_flag;
        ((DCI1A_10MHz_TDD_1_6_t *)dci_pdu)->mcs       = rel8->mcs_1;
        ((DCI1A_10MHz_TDD_1_6_t *)dci_pdu)->ndi       = rel8->new_data_indicator_1;
        ((DCI1A_10MHz_TDD_1_6_t *)dci_pdu)->rballoc   = rel8->resource_block_coding;
        ((DCI1A_10MHz_TDD_1_6_t *)dci_pdu)->rv        = rel8->redundancy_version_1;
        ((DCI1A_10MHz_TDD_1_6_t *)dci_pdu)->TPC       = rel8->tpc;
        ((DCI1A_10MHz_TDD_1_6_t *)dci_pdu)->harq_pid  = rel8->harq_process;
        ((DCI1A_10MHz_TDD_1_6_t *)dci_pdu)->dai       = rel8->downlink_assignment_index;	
        //        printf("TDD 1A: mcs %d, rballoc %x,rv %d, NPRB %d\n",mcs,rballoc,rv,NPRB);
      } else {
1166
	dci_alloc->dci_length                         = sizeof_DCI1A_10MHz_FDD_t; 
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
1199
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
	((DCI1A_10MHz_FDD_t *)dci_pdu)->type          = 1;
        ((DCI1A_10MHz_FDD_t *)dci_pdu)->vrb_type      = rel8->virtual_resource_block_assignment_flag;
        ((DCI1A_10MHz_FDD_t *)dci_pdu)->mcs           = rel8->mcs_1;
        ((DCI1A_10MHz_FDD_t *)dci_pdu)->ndi           = rel8->new_data_indicator_1;
        ((DCI1A_10MHz_FDD_t *)dci_pdu)->rballoc       = rel8->resource_block_coding;
        ((DCI1A_10MHz_FDD_t *)dci_pdu)->rv            = rel8->redundancy_version_1;
        ((DCI1A_10MHz_FDD_t *)dci_pdu)->TPC           = rel8->tpc;
        ((DCI1A_10MHz_FDD_t *)dci_pdu)->harq_pid      = rel8->harq_process;
	//      printf("FDD 1A: mcs %d, rballoc %x,rv %d, NPRB %d\n",mcs,rballoc,rv,NPRB);
      }
      AssertFatal(rel8->virtual_resource_block_assignment_flag==LOCALIZED,"Distributed RB allocation not done yet\n");
      dlsch0_harq->rb_alloc[0]     = localRIV2alloc_LUT50_0[rel8->resource_block_coding];
      dlsch0_harq->rb_alloc[1]     = localRIV2alloc_LUT50_1[rel8->resource_block_coding];
      dlsch0_harq->vrb_type           =  rel8->virtual_resource_block_assignment_flag;
      dlsch0_harq->nb_rb              = RIV2nb_rb_LUT50[rel8->resource_block_coding];//NPRB;
      break;
    case 100:
      if (fp->frame_type == TDD) {
	dci_alloc->dci_length                         = sizeof_DCI1A_20MHz_TDD_1_6_t; 
        ((DCI1A_20MHz_TDD_1_6_t *)dci_pdu)->type      = 1;
        ((DCI1A_20MHz_TDD_1_6_t *)dci_pdu)->vrb_type  = rel8->virtual_resource_block_assignment_flag;
        ((DCI1A_20MHz_TDD_1_6_t *)dci_pdu)->mcs       = rel8->mcs_1;
        ((DCI1A_20MHz_TDD_1_6_t *)dci_pdu)->ndi       = rel8->new_data_indicator_1;
        ((DCI1A_20MHz_TDD_1_6_t *)dci_pdu)->rballoc   = rel8->resource_block_coding;
        ((DCI1A_20MHz_TDD_1_6_t *)dci_pdu)->rv        = rel8->redundancy_version_1;
        ((DCI1A_20MHz_TDD_1_6_t *)dci_pdu)->TPC       = rel8->tpc;
        ((DCI1A_20MHz_TDD_1_6_t *)dci_pdu)->harq_pid  = rel8->harq_process;
        ((DCI1A_20MHz_TDD_1_6_t *)dci_pdu)->dai       = rel8->downlink_assignment_index;	
        //        printf("TDD 1A: mcs %d, rballoc %x,rv %d, NPRB %d\n",mcs,rballoc,rv,NPRB);
      } else {
	dci_alloc->dci_length                         = sizeof_DCI1A_20MHz_FDD_t; 
	((DCI1A_20MHz_FDD_t *)dci_pdu)->type          = 1;
        ((DCI1A_20MHz_FDD_t *)dci_pdu)->vrb_type      = rel8->virtual_resource_block_assignment_flag;
        ((DCI1A_20MHz_FDD_t *)dci_pdu)->mcs           = rel8->mcs_1;
        ((DCI1A_20MHz_FDD_t *)dci_pdu)->ndi           = rel8->new_data_indicator_1;
        ((DCI1A_20MHz_FDD_t *)dci_pdu)->rballoc       = rel8->resource_block_coding;
        ((DCI1A_20MHz_FDD_t *)dci_pdu)->rv            = rel8->redundancy_version_1;
        ((DCI1A_20MHz_FDD_t *)dci_pdu)->TPC           = rel8->tpc;
        ((DCI1A_20MHz_FDD_t *)dci_pdu)->harq_pid      = rel8->harq_process;
	//      printf("FDD 1A: mcs %d, rballoc %x,rv %d, NPRB %d\n",mcs,rballoc,rv,NPRB);
      }
      AssertFatal(rel8->virtual_resource_block_assignment_flag==LOCALIZED,"Distributed RB allocation not done yet\n");
      dlsch0_harq->rb_alloc[0]      = localRIV2alloc_LUT100_0[rel8->resource_block_coding];
      dlsch0_harq->rb_alloc[1]      = localRIV2alloc_LUT100_1[rel8->resource_block_coding];
      dlsch0_harq->rb_alloc[2]      = localRIV2alloc_LUT100_2[rel8->resource_block_coding];
      dlsch0_harq->rb_alloc[3]      = localRIV2alloc_LUT100_3[rel8->resource_block_coding];
      dlsch0_harq->vrb_type         =  rel8->virtual_resource_block_assignment_flag;
      dlsch0_harq->nb_rb            = RIV2nb_rb_LUT100[rel8->resource_block_coding];//NPRB;
      break;
    }

    if (rel8->rnti_type == 2 ) {
      // see 36-212 V8.6.0 p. 45
      NPRB      = (rel8->tpc&1)+2;
      // 36-213 sec.7.1.7.2 p.26
      I_mcs     = rel8->mcs_1;
    }
    else {
      NPRB      = dlsch0_harq->nb_rb;
      I_mcs     = get_I_TBS(rel8->mcs_1);
    }
1228
    AssertFatal(NPRB>0,"DCI 1A: NPRB = 0 (rnti %x, rnti type %d, tpc %d, round %d, resource_block_coding %d)\n",rel8->rnti,rel8->rnti_type,rel8->tpc,dlsch0_harq->round,rel8->resource_block_coding);
1229
1230
1231
1232
1233
1234
1235
1236
    dlsch0_harq->rvidx         = rel8->redundancy_version_1;
    dlsch0_harq->Nl            = 1;
    dlsch0_harq->mimo_mode     = (fp->nb_antenna_ports_eNB == 1) ? SISO : ALAMOUTI;
    dlsch0_harq->dl_power_off  = 1;
    
    

    dlsch0_harq->mcs             = rel8->mcs_1;
1237
    dlsch0_harq->Qm              = 2;
1238
1239
1240
1241
1242
1243
1244
1245
    dlsch0_harq->TBS             = TBStable[I_mcs][NPRB-1];
    dlsch0->harq_ids[subframe]   = rel8->harq_process;
    dlsch0->active               = 1;
    dlsch0->rnti                 = rel8->rnti;
    dlsch0->harq_ids[subframe]   = rel8->harq_process;
    if (dlsch0_harq->round == 0)
      dlsch0_harq->status = ACTIVE;

1246
1247
    dlsch0->harq_mask            |= (1<<rel8->harq_process);

1248
    if (rel8->rnti_type == 1) LOG_I(PHY,"DCI 1A: round %d, mcs %d, rballoc %x,rv %d, rnti %x\n",dlsch0_harq->round,rel8->mcs_1,rel8->resource_block_coding,rel8->redundancy_version_1,rel8->rnti);
1249
1250
1251
1252
1253
1254

    break;
  case NFAPI_DL_DCI_FORMAT_1:

    dci_alloc->format           = format1;
    dlsch0->active              = 1;
1255

knopp's avatar
knopp committed
1256
    LOG_D(PHY,"Frame %d, Subframe %d: Programming DLSCH for Format 1 DCI, harq_pid %d\n",proc->frame_tx,subframe,rel8->harq_process);
1257
1258
1259
1260
1261
1262
1263
1264
1265
1266
1267
1268
1269
1270
1271
1272
1273
1274
1275
1276
1277
1278
1279
1280
1281
1282
1283
1284
1285
1286
1287
1288
1289
1290
1291
1292
1293
1294
1295
1296
1297
1298
1299
1300
1301
1302
<