dci_tools.c 324 KB
Newer Older
1
/*******************************************************************************
2
    OpenAirInterface
ghaddab's avatar
ghaddab committed
3
    Copyright(c) 1999 - 2014 Eurecom
4

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


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

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

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

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

ghaddab's avatar
ghaddab committed
28
 *******************************************************************************/
29
30

/*! \file PHY/LTE_TRANSPORT/dci_tools.c
31
 * \brief PHY Support routines (eNB/UE) for filling PDSCH/PUSCH/DLSCH/ULSCH data structures based on DCI PDUs generated by eNB MAC scheduler.
32
33
34
35
36
37
38
39
40
41
42
43
44
45
 * \author R. Knopp
 * \date 2011
 * \version 0.1
 * \company Eurecom
 * \email: knopp@eurecom.fr
 * \note
 * \warning
 */
#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
46
#include "assertions.h"
47
//#define DEBUG_HARQ
48
49
50

//#define DEBUG_DCI

51
52
53
uint32_t localRIV2alloc_LUT6[32];
uint32_t distRIV2alloc_even_LUT6[32];
uint32_t distRIV2alloc_odd_LUT6[32];
54
55
56
57
uint16_t RIV2nb_rb_LUT6[32];
uint16_t RIV2first_rb_LUT6[32];
uint16_t RIV_max6=0;

58
59
60
uint32_t localRIV2alloc_LUT25[512];
uint32_t distRIV2alloc_even_LUT25[512];
uint32_t distRIV2alloc_odd_LUT25[512];
61
62
63
64
65
uint16_t RIV2nb_rb_LUT25[512];
uint16_t RIV2first_rb_LUT25[512];
uint16_t RIV_max25=0;


66
67
68
69
70
71
72
73
74
75
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];
76
77
78
79
uint16_t RIV2nb_rb_LUT50[1600];
uint16_t RIV2first_rb_LUT50[1600];
uint16_t RIV_max50=0;

80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
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];
100
101
102
103
104
105
106
107
108
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
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
                         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
125
126
127

// Table 8.6.3-2 36.213
uint16_t beta_ri[16] = {10,   //1.250
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
                        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
144
145
146

// Table 8.6.3-2 36.213
uint16_t beta_ack[16] = {16,  //2.000
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
                         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
162
163
164
165
166

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;
167
168
169

void conv_rballoc(uint8_t ra_header,uint32_t rb_alloc,uint32_t N_RB_DL,uint32_t *rb_alloc2)
{
170
171

  uint32_t i,shift,subset;
172
173
174
175
  rb_alloc2[0] = 0;
  rb_alloc2[1] = 0;
  rb_alloc2[2] = 0;
  rb_alloc2[3] = 0;
176
177
178
179
180
181
182
183
184
185
186

  //  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
187
188
189
190
191
192

      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);
193
      }
194

195
      if ((rb_alloc&1) != 0)
196
197
        rb_alloc2[0] |= (1<<24);
    } else {
198
199
      subset = rb_alloc&1;
      shift  = (rb_alloc>>1)&1;
200
201
202
203
204
205

      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);
206
      }
207

208
      if ((shift == 0) && (subset == 1))
209
        rb_alloc2[0]<<=1;
210
      else if ((shift == 1) && (subset == 0))
211
        rb_alloc2[0]<<=4;
212
      else if ((shift == 1) && (subset == 1))
213
        rb_alloc2[0]<<=3;
214
    }
215

216
    break;
217

218
219
220
221
222
223
224
  case 50:
    if (ra_header == 0) {// Type 0 Allocation

      for (i=16; i>0; i--) {
        if ((rb_alloc&(1<<i)) != 0)
          rb_alloc2[(3*(16-i))>>5] |= (7<<((3*(16-i))%32));
      }
225

226
      /*
227
228
229
230
      for (i=1;i<=16;i++) {
        if ((rb_alloc&(1<<(16-i))) != 0)
      rb_alloc2[(3*i)>>5] |= (7<<((3*i)%32));
      }
231
      */
232
      // bit mask across
233
234
      if ((rb_alloc2[0]>>31)==1)
        rb_alloc2[1] |= 1;
235

236
      if ((rb_alloc&1) != 0)
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
        rb_alloc2[1] |= (3<<16);

      /*
        for (i=0;i<16;i++) {
        if (((rb_alloc>>(16-i))&1) != 0)
        rb_alloc2[(3*i)>>5] |= (7<<((3*i)%32));
        if ((i==10)&&((rb_alloc&(1<<6))!=0))
        rb_alloc2[1] = 1;
        //  printf("rb_alloc2[%d] (type 0) %x ((%x>>%d)&1=%d)\n",(3*i)>>5,rb_alloc2[(3*i)>>5],rb_alloc,i,(rb_alloc>>i)&1);

        }
        // fill in 2 from last bit instead of 3
        if ((rb_alloc&1) != 0)
        rb_alloc2[1] |= (3<<i);
        //    printf("rb_alloc2[%d] (type 0) %x ((%x>>%d)&1=%d)\n",(3*i)>>5,rb_alloc2[(3*i)>>5],rb_alloc,i,(rb_alloc>>i)&1);
        */
253
      //      printf("rb_alloc[1]=%x,rb_alloc[0]=%x\n",rb_alloc2[1],rb_alloc2[0]);
254
    } else {
255
256
      LOG_E(PHY,"resource type 1 not supported for  N_RB_DL=50\n");
      //      mac_xface->macphy_exit("resource type 1 not supported for  N_RB_DL=100\n");
257
      /*
258
259
260
261
262
263
264
265
266
267
268
269
270
      subset = rb_alloc&1;
      shift  = (rb_alloc>>1)&1;
      for (i=0;i<11;i++) {
      if ((rb_alloc&(1<<(i+2))) != 0)
      rb_alloc2 |= (1<<(2*i));
      //      printf("rb_alloc2 (type 1) %x\n",rb_alloc2);
      }
      if ((shift == 0) && (subset == 1))
      rb_alloc2<<=1;
      else if ((shift == 1) && (subset == 0))
      rb_alloc2<<=4;
      else if ((shift == 1) && (subset == 1))
      rb_alloc2<<=3;
271
272
      */
    }
273

274
275
276
277
    break;

  case 100:
    if (ra_header == 0) {// Type 0 Allocation
278
279
280
281
282
      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));
283
      }
284
    } else {
285
      LOG_E(PHY,"resource type 1 not supported for  N_RB_DL=100\n");
286
      //      mac_xface->macphy_exit("resource type 1 not supported for  N_RB_DL=100\n");
287
      /*
288
289
290
291
292
293
294
295
296
297
298
299
300
      subset = rb_alloc&1;
      shift  = (rb_alloc>>1)&1;
      for (i=0;i<11;i++) {
      if ((rb_alloc&(1<<(i+2))) != 0)
      rb_alloc2 |= (1<<(2*i));
      //      printf("rb_alloc2 (type 1) %x\n",rb_alloc2);
      }
      if ((shift == 0) && (subset == 1))
      rb_alloc2<<=1;
      else if ((shift == 1) && (subset == 0))
      rb_alloc2<<=4;
      else if ((shift == 1) && (subset == 1))
      rb_alloc2<<=3;
301
302
      */
    }
303

304
305
306
    break;

  default:
winckel's avatar
winckel committed
307
308
    LOG_E(PHY,"Invalid N_RB_DL %d\n", N_RB_DL);
    DevParam (N_RB_DL, 0, 0);
309
310
311
312
313
314
315
    break;
  }

}



316
317
uint32_t conv_nprb(uint8_t ra_header,uint32_t rb_alloc,int N_RB_DL)
{
318
319
320
321
322

  uint32_t nprb=0,i;

  switch (N_RB_DL) {
  case 6:
323
    for (i=0; i<6; i++) {
324
      if ((rb_alloc&(1<<i)) != 0)
325
        nprb += 1;
326
    }
327

328
    break;
329

330
331
  case 25:
    if (ra_header == 0) {// Type 0 Allocation
332
333
334
335

      for (i=12; i>0; i--) {
        if ((rb_alloc&(1<<i)) != 0)
          nprb += 2;
336
      }
337

338
      if ((rb_alloc&1) != 0)
339
340
341
342
343
        nprb += 1;
    } else {
      for (i=0; i<11; i++) {
        if ((rb_alloc&(1<<(i+2))) != 0)
          nprb += 1;
344
345
      }
    }
346

347
    break;
348

349
350
  case 50:
    if (ra_header == 0) {// Type 0 Allocation
351
352
353
354

      for (i=0; i<16; i++) {
        if ((rb_alloc&(1<<(16-i))) != 0)
          nprb += 3;
355
      }
356

357
      if ((rb_alloc&1) != 0)
358
        nprb += 2;
359

360
361
362
363
    } else {
      for (i=0; i<17; i++) {
        if ((rb_alloc&(1<<(i+2))) != 0)
          nprb += 1;
364
365
      }
    }
366

367
    break;
368

369
370
  case 100:
    if (ra_header == 0) {// Type 0 Allocation
371
372
373
374

      for (i=0; i<25; i++) {
        if ((rb_alloc&(1<<(24-i))) != 0)
          nprb += 4;
375
      }
376
377
378
379
    } else {
      for (i=0; i<25; i++) {
        if ((rb_alloc&(1<<(i+2))) != 0)
          nprb += 1;
380
381
      }
    }
382

383
    break;
winckel's avatar
winckel committed
384
385
386
387
388

  default:
    LOG_E(PHY,"Invalide N_RB_DL %d\n", N_RB_DL);
    DevParam (N_RB_DL, 0, 0);
    break;
389
390
391
392
393
  }

  return(nprb);
}

394
395
uint16_t computeRIV(uint16_t N_RB_DL,uint16_t RBstart,uint16_t Lcrbs)
{
396

397
  uint16_t RIV;
398

399
400
401
402
  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);
403

404
  return(RIV);
405
406
}

407
// Convert a DCI Format 1C RIV to a Format 1A RIV
408
// This extracts the start and length in PRBs from the 1C rballoc and
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
// 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)));
452

453
454
}

455
uint32_t get_prb(int N_RB_DL,int odd_slot,int vrb,int Ngap) {
456
457
458
459

  int offset;

  switch (N_RB_DL) {
460

461
462
463
  case 6:
  // N_RB_DL = tildeN_RB_DL = 6
  // Ngap = 4 , P=1, Nrow = 2, Nnull = 2
464

465
466
467
468
469
470
471
472
473
474
    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
475
      return ((3*odd_slot) + 1)%6;
476
477
478
479
480
    case 5:  // even: 5->4, odd: 5->1
      return ((3*odd_slot) + 4)%6;
      break;
    }
    break;
481

482
483
484
  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
485
  return(((7*odd_slot) + 4*(vrb&3) + (vrb>>2))%14) + 14*(vrb/14);
486
      else if (vrb < 12) // even: 2->7, 3->11, 6->8, 7->12, 10->9, 11->13
487
  return (((7*odd_slot) + 4*(vrb&3) + (vrb>>2) +13 )%14) + 14*(vrb/14);
488
489
490
491
492
493
494
    }
    if (vrb==12)
      return (3+(7*odd_slot)) % 14;
    if (vrb==13)
      return (10+(7*odd_slot)) % 14;
    return 14;
    break;
495

496
497
498
  case 25:
    return (((12*odd_slot) + 6*(vrb&3) + (vrb>>2))%24) + 24*(vrb/24);
    break;
499

500
501
502
503
  case 50: // P=3
    if (Ngap==0) {
      // Nrow=12,Nnull=2,NVRBDL=46,Ngap1= 27
      if (vrb>=23)
504
  offset=4;
505
      else
506
  offset=0;
507
      if (vrb<44) {
508
509
510
511
  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;
512
513
      }
      if (vrb==44)  // even: 44->11, odd: 45->34
514
  return offset+((23*odd_slot) + 22-12+1);
515
      if (vrb==45)  // even: 45->10, odd: 45->33
516
  return offset+((23*odd_slot) + 22+12);
517
      if (vrb==46)
518
  return offset+46+((23*odd_slot) + 23-12+1) % 46;
519
      if (vrb==47)
520
  return offset+46+((23*odd_slot) + 23+12) % 46;
521
      if (vrb==48)
522
  return offset+46+((23*odd_slot) + 23-12+1) % 46;
523
      if (vrb==49)
524
  return offset+46+((23*odd_slot) + 23+12) % 46;
525
526
527
528
    }
    else {
      // Nrow=6,Nnull=6,NVRBDL=18,Ngap1= 27
      if (vrb>=9)
529
  offset=18;
530
      else
531
  offset=0;
532

533
      if (vrb<12) {
534
535
536
537
  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;
538
539
      }
      else {
540
  return offset+((9*odd_slot) + 12*(vrb&1)+(vrb>>1) )%18 + 18*(vrb/18);
541
542
543
544
545
546
      }
    }
    break;
  case 75:
    // Ngap1 = 32, NVRBRL=64, P=4, Nrow= 16, Nnull=0
    if (Ngap ==0) {
547
      return ((32*odd_slot) + 16*(vrb&3) + (vrb>>2))%64 + (vrb/64);
548
549
    } else {
      // Ngap2 = 16, NVRBDL=32, Nrow=8, Nnull=0
550
      return ((16*odd_slot) + 8*(vrb&3) + (vrb>>2))%32 + (vrb/32);
551
552
553
554
555
    }
    break;
  case 100:
    // Ngap1 = 48, NVRBDL=96, Nrow=24, Nnull=0
    if (Ngap ==0) {
556
      return ((48*odd_slot) + 24*(vrb&3) + (vrb>>2))%96 + (vrb/96);
557
558
    } else {
      // Ngap2 = 16, NVRBDL=32, Nrow=8, Nnull=0
559
      return ((16*odd_slot) + 8*(vrb&3) + (vrb>>2))%32 + (vrb/32);
560
561
562
563
564
565
566
    }
    break;
  default:
    LOG_E(PHY,"Unknown N_RB_DL %d\n",N_RB_DL);
    return 0;
  }
  return 0;
567

568
569
}

570

571
572
void generate_RIV_tables()
{
573
574
575
576

  // 6RBs localized RIV
  uint8_t Lcrbs,RBstart;
  uint16_t RIV;
577
578
579
580
581
  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;
582

583
  for (RBstart=0; RBstart<6; RBstart++) {
584
    alloc0 = 0;
585
586
    allocdist0_0_even = 0;
    allocdist0_0_odd  = 0;
587
    for (Lcrbs=1; Lcrbs<=(6-RBstart); Lcrbs++) {
588
      //printf("RBstart %d, len %d --> ",RBstart,Lcrbs);
589
590
591
592
      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));
593
      RIV=computeRIV(6,RBstart,Lcrbs);
594

595
      if (RIV>RIV_max6)
596
        RIV_max6 = RIV;
597
598
599

      //      printf("RIV %d (%d) : first_rb %d NBRB %d\n",RIV,localRIV2alloc_LUT25[RIV],RBstart,Lcrbs);
      localRIV2alloc_LUT6[RIV] = alloc0;
600
601
      distRIV2alloc_even_LUT6[RIV]  = allocdist0_0_even;
      distRIV2alloc_odd_LUT6[RIV]  = allocdist0_0_odd;
602
603
604
605
606
607
      RIV2nb_rb_LUT6[RIV]      = Lcrbs;
      RIV2first_rb_LUT6[RIV]   = RBstart;
    }
  }


608
  for (RBstart=0; RBstart<25; RBstart++) {
609
    alloc0 = 0;
610
611
    allocdist0_0_even = 0;
    allocdist0_0_odd  = 0;
612
    for (Lcrbs=1; Lcrbs<=(25-RBstart); Lcrbs++) {
613
      nVRB = Lcrbs-1+RBstart;
614
      //printf("RBstart %d, len %d --> ",RBstart,Lcrbs);
615
616
617
      alloc0     |= (1<<nVRB);
      allocdist0_0_even |= (1<<get_prb(25,0,nVRB,0));
      allocdist0_0_odd  |= (1<<get_prb(25,1,nVRB,0));
618

619
      //printf("alloc 0 %x, allocdist0_even %x, allocdist0_odd %x\n",alloc0,allocdist0_0_even,allocdist0_0_odd);
620
      RIV=computeRIV(25,RBstart,Lcrbs);
621

622
      if (RIV>RIV_max25)
623
        RIV_max25 = RIV;;
624

625
626
627
628
629
630

      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;
631
    }
632
633
634
  }


635
  for (RBstart=0; RBstart<50; RBstart++) {
636
637
    alloc0 = 0;
    alloc1 = 0;
638
639
640
641
642
643
644
645
    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;
646
647

    for (Lcrbs=1; Lcrbs<=(50-RBstart); Lcrbs++) {
648

649
      nVRB = Lcrbs-1+RBstart;
650

651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667

      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);
668
      else
669
        allocdist1_0_odd |= (1<<(nVRB_odd_dist-32));
670

671
672
673
674
      // 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);
675
      else
676
        allocdist1_1_even |= (1<<(nVRB_even_dist-32));
677

678
679
680
681
      // 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);
682
      else
683
        allocdist1_1_odd |= (1<<(nVRB_odd_dist-32));
684
685

      RIV=computeRIV(50,RBstart,Lcrbs);
686

687
      if (RIV>RIV_max50)
688
        RIV_max50 = RIV;
689
690

      //      printf("RIV %d : first_rb %d NBRB %d\n",RIV,RBstart,Lcrbs);
691
692
693
694
695
696
697
698
699
700
      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;
701
702
703
704
705
706
      RIV2nb_rb_LUT50[RIV]        = Lcrbs;
      RIV2first_rb_LUT50[RIV]     = RBstart;
    }
  }


707
  for (RBstart=0; RBstart<100; RBstart++) {
708
709
710
711
    alloc0 = 0;
    alloc1 = 0;
    alloc2 = 0;
    alloc3 = 0;
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
    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;
728

729
    for (Lcrbs=1; Lcrbs<=(100-RBstart); Lcrbs++) {
730

731
732
733
734
735
      nVRB = Lcrbs-1+RBstart;

      if (nVRB<32)
        alloc0 |= (1<<nVRB);
      else if (nVRB<64)
736
        alloc1 |= (1<<(nVRB-32));
737
      else if (nVRB<96)
738
        alloc2 |= (1<<(nVRB-64));
739
      else
740
        alloc3 |= (1<<(nVRB-96));
741
742
743
744

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

745
//      if ((RBstart==0) && (Lcrbs<=8))
746
//  printf("nVRB %d => nVRB_even_dist %d\n",nVRB,nVRB_even_dist);
747
748
749
750
751
752
753


      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)
754
  allocdist2_0_even |= (1<<(nVRB_even_dist-64));
755
      else
756
  allocdist3_0_even |= (1<<(nVRB_even_dist-96));
757
/*      if ((RBstart==0) && (Lcrbs<=8))
758
759
760
761
762
763
  printf("rballoc =>(%08x.%08x.%08x.%08x)\n",
         allocdist0_0_even,
         allocdist1_0_even,
         allocdist2_0_even,
         allocdist3_0_even
         );
764
*/
765
766
767
768
769
770
771
      // 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)
772
  allocdist2_0_odd |= (1<<(nVRB_odd_dist-64));
773
      else
774
  allocdist3_0_odd |= (1<<(nVRB_odd_dist-96));
775
776


777
778
779
780
781
782
783
      // 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)
784
  allocdist2_1_even |= (1<<(nVRB_even_dist-64));
785
      else
786
  allocdist3_1_even |= (1<<(nVRB_even_dist-96));
787
788
789
790
791
792
793
794
795


      // 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)
796
  allocdist2_1_odd |= (1<<(nVRB_odd_dist-64));
797
      else
798
  allocdist3_1_odd |= (1<<(nVRB_odd_dist-96));
799

800
801

      RIV=computeRIV(100,RBstart,Lcrbs);
802

803
      if (RIV>RIV_max100)
804
        RIV_max100 = RIV;
805
806
807
808
809
810

      //      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;
811
812
813
814
815
816
817
818
819
820
821
822
823
824
825
826
827
      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;

828
829
830
831
832
833
834
835
836
837
838
839
840
841
842
843
844
      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)



845
uint32_t get_rballoc(vrb_t vrb_type,uint16_t rb_alloc_dci)
846
{
847

848
  return(localRIV2alloc_LUT25[rb_alloc_dci]);
849
850
851

}

852
853
uint8_t get_transmission_mode(module_id_t Mod_id, uint8_t CC_id, rnti_t rnti)
{
854
855
856
  unsigned char UE_id;

  // find the UE_index corresponding to rnti
857
  UE_id = find_ue(rnti,PHY_vars_eNB_g[Mod_id][CC_id]);
858
  DevAssert( UE_id != (unsigned char)-1 );
859

860
  return(PHY_vars_eNB_g[Mod_id][CC_id]->transmission_mode[UE_id]);
861
862
}

863
int generate_eNB_dlsch_params_from_dci(int frame,
864
                                       uint8_t subframe,
865
866
867
868
869
870
871
872
873
                                       void *dci_pdu,
                                       uint16_t rnti,
                                       DCI_format_t dci_format,
                                       LTE_eNB_DLSCH_t **dlsch,
                                       LTE_DL_FRAME_PARMS *frame_parms,
                                       PDSCH_CONFIG_DEDICATED *pdsch_config_dedicated,
                                       uint16_t si_rnti,
                                       uint16_t ra_rnti,
                                       uint16_t p_rnti,
Elena Lukashova's avatar
Elena Lukashova committed
874
                                       uint16_t DL_pmi_single
875
                                      )
876
{
877

winckel's avatar
winckel committed
878
879
880
  uint8_t harq_pid = UINT8_MAX;
  uint32_t rballoc = UINT32_MAX;
  uint32_t RIV_max = 0;
881
  uint8_t NPRB,tbswap,tpmi=0;
882
  LTE_eNB_DLSCH_t *dlsch0=NULL,*dlsch1=NULL;
883
884
  uint8_t frame_type=frame_parms->frame_type;
  uint8_t vrb_type=0;
knopp's avatar
   
knopp committed
885
  uint8_t mcs=0,mcs1=0,mcs2=0;
886
  uint8_t I_mcs = 0;
knopp's avatar
   
knopp committed
887
  uint8_t rv=0,rv1=0,rv2=0;
888
889
  uint8_t rah=0;
  uint8_t TPC=0;
890
  uint8_t TB0_active=0,TB1_active=0;
891
  LTE_DL_eNB_HARQ_t *dlsch0_harq=NULL,*dlsch1_harq=NULL;
knopp's avatar
   
knopp committed
892

893
894
895
896
897
898
899
  //   printf("Generate eNB DCI, format %d, rnti %x (pdu %p)\n",dci_format,rnti,dci_pdu);

  switch (dci_format) {

  case format0:
    return(-1);
    break;
900

901
902
  case format1A:  // This is DLSCH allocation for control traffic

903

904
905
906

    dlsch[0]->subframe_tx[subframe] = 1;

907

908
909
910
    switch (frame_parms->N_RB_DL) {
    case 6:
      if (frame_type == TDD) {
911
912
913
914
915
916
        vrb_type = ((DCI1A_1_5MHz_TDD_1_6_t *)dci_pdu)->vrb_type;
        mcs      = ((DCI1A_1_5MHz_TDD_1_6_t *)dci_pdu)->mcs;
        rballoc  = ((DCI1A_1_5MHz_TDD_1_6_t *)dci_pdu)->rballoc;
        rv       = ((DCI1A_1_5MHz_TDD_1_6_t *)dci_pdu)->rv;
        TPC      = ((DCI1A_1_5MHz_TDD_1_6_t *)dci_pdu)->TPC;
        harq_pid = ((DCI1A_1_5MHz_TDD_1_6_t *)dci_pdu)->harq_pid;
917

918
919
920
921
922
923
924
925
        //        printf("TDD 1A: mcs %d, rballoc %x,rv %d, NPRB %d\n",mcs,rballoc,rv,NPRB);
      } else {
        vrb_type = ((DCI1A_1_5MHz_FDD_t *)dci_pdu)->vrb_type;
        mcs      = ((DCI1A_1_5MHz_FDD_t *)dci_pdu)->mcs;
        rballoc  = ((DCI1A_1_5MHz_FDD_t *)dci_pdu)->rballoc;
        rv       = ((DCI1A_1_5MHz_FDD_t *)dci_pdu)->rv;
        TPC      = ((DCI1A_1_5MHz_FDD_t *)dci_pdu)->TPC;
        harq_pid = ((DCI1A_1_5MHz_FDD_t *)dci_pdu)->harq_pid;
926

927
        //      printf("FDD 1A: mcs %d, rballoc %x,rv %d, NPRB %d\n",mcs,rballoc,rv,NPRB);
928
      }
929
930

      dlsch0_harq = dlsch[0]->harq_processes[harq_pid];
931
      dlsch0_harq->codeword=0;
932

933
      if (vrb_type==LOCALIZED) {
934
  dlsch0_harq->rb_alloc[0]    = localRIV2alloc_LUT6[rballoc];
935
936
      }
      else {
937
938
  LOG_E(PHY,"Distributed RB allocation not done yet\n");
  mac_xface->macphy_exit("exiting");
939
      }
940
941
      dlsch0_harq->vrb_type       = vrb_type;
      dlsch0_harq->nb_rb          = RIV2nb_rb_LUT6[rballoc];//NPRB;
942
943
      RIV_max = RIV_max6;

944

945
      break;
946

947
948
    case 25:
      if (frame_type == TDD) {
949
950
951
952
953
954
        vrb_type = ((DCI1A_5MHz_TDD_1_6_t *)dci_pdu)->vrb_type;
        mcs      = ((DCI1A_5MHz_TDD_1_6_t *)dci_pdu)->mcs;
        rballoc  = ((DCI1A_5MHz_TDD_1_6_t *)dci_pdu)->rballoc;
        rv       = ((DCI1A_5MHz_TDD_1_6_t *)dci_pdu)->rv;
        TPC      = ((DCI1A_5MHz_TDD_1_6_t *)dci_pdu)->TPC;
        harq_pid = ((DCI1A_5MHz_TDD_1_6_t *)dci_pdu)->harq_pid;
955

956
957
958
959
960
961
962
963
        //      printf("TDD 1A: mcs %d, rballoc %x,rv %d, NPRB %d\n",mcs,rballoc,rv,NPRB);
      } else {
        vrb_type = ((DCI1A_5MHz_FDD_t *)dci_pdu)->vrb_type;
        mcs      = ((DCI1A_5MHz_FDD_t *)dci_pdu)->mcs;
        rballoc  = ((DCI1A_5MHz_FDD_t *)dci_pdu)->rballoc;
        rv       = ((DCI1A_5MHz_FDD_t *)dci_pdu)->rv;
        TPC      = ((DCI1A_5MHz_FDD_t *)dci_pdu)->TPC;
        harq_pid = ((DCI1A_5MHz_FDD_t *)dci_pdu)->harq_pid;
964

965
        //      printf("FDD 1A: mcs %d, rballoc %x,rv %d, NPRB %d\n",mcs,rballoc,rv,NPRB);
966
967
      }

968
      dlsch0_harq = dlsch[0]->harq_processes[harq_pid];
969

970

971
      if (vrb_type==LOCALIZED) {
972
  dlsch0_harq->rb_alloc[0]    = localRIV2alloc_LUT25[rballoc];
973
974
      }
      else {
975
976
  LOG_E(PHY,"Distributed RB allocation not done yet\n");
  mac_xface->macphy_exit("exiting");
977
      }
978
979
980
      dlsch0_harq->vrb_type       = vrb_type;
      dlsch0_harq->nb_rb          = RIV2nb_rb_LUT25[rballoc];//NPRB;
      RIV_max                     = RIV_max25;
981
      break;
982

983
984
    case 50:
      if (frame_type == TDD) {
985
986
987
988
989
990
991
992
993
994
995
996
997
998
999
1000
        vrb_type = ((DCI1A_10MHz_TDD_1_6_t *)dci_pdu)->vrb_type;
        mcs      = ((DCI1A_10MHz_TDD_1_6_t *)dci_pdu)->mcs;
        rballoc  = ((DCI1A_10MHz_TDD_1_6_t *)dci_pdu)->rballoc;
        rv       = ((DCI1A_10MHz_TDD_1_6_t *)dci_pdu)->rv;
        TPC      = ((DCI1A_10MHz_TDD_1_6_t *)dci_pdu)->TPC;
        harq_pid = ((DCI1A_10MHz_TDD_1_6_t *)dci_pdu)->harq_pid;

        //      printf("TDD 1A: mcs %d, rballoc %x,rv %d, NPRB %d\n",mcs,rballoc,rv,NPRB);
      } else {
        vrb_type = ((DCI1A_10MHz_FDD_t *)dci_pdu)->vrb_type;
        mcs      = ((DCI1A_10MHz_FDD_t *)dci_pdu)->mcs;
        rballoc  = ((DCI1A_10MHz_FDD_t *)dci_pdu)->rballoc;
        rv       = ((DCI1A_10MHz_FDD_t *)dci_pdu)->rv;
        TPC      = ((DCI1A_10MHz_FDD_t *)dci_pdu)->TPC;
        harq_pid = ((DCI1A_10MHz_FDD_t *)dci_pdu)->harq_pid;
        //printf("FDD 1A: mcs %d, rballoc %x,rv %d, TPC %d\n",mcs,rballoc,rv,TPC);
For faster browsing, not all history is shown. View entire blame