eNB_scheduler_ulsch.c 54.8 KB
Newer Older
1
/*******************************************************************************
nikaeinn's avatar
nikaeinn committed
2
3
    OpenAirInterface
    Copyright(c) 1999 - 2014 Eurecom
4

nikaeinn's avatar
nikaeinn 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


nikaeinn's avatar
nikaeinn 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

nikaeinn's avatar
nikaeinn 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/>.
20
21

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

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

gauthier's avatar
   
gauthier committed
28
 *******************************************************************************/
nikaeinn's avatar
nikaeinn committed
29
30
31

/*! \file eNB_scheduler_ulsch.c
 * \brief eNB procedures for the ULSCH transport channel
32
33
34
 * \author Navid Nikaein and Raymond Knopp
 * \date 2010 - 2014
 * \email: navid.nikaein@eurecom.fr
nikaeinn's avatar
nikaeinn committed
35
 * \version 1.0
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
 * @ingroup _mac

 */

#include "assertions.h"
#include "PHY/defs.h"
#include "PHY/extern.h"

#include "SCHED/defs.h"
#include "SCHED/extern.h"

#include "LAYER2/MAC/defs.h"
#include "LAYER2/MAC/proto.h"
#include "LAYER2/MAC/extern.h"
#include "UTIL/LOG/log.h"
#include "UTIL/LOG/vcd_signal_dumper.h"
#include "UTIL/OPT/opt.h"
#include "OCG.h"
#include "OCG_extern.h"

#include "RRC/LITE/extern.h"
#include "RRC/L2_INTERFACE/openair_rrc_L2_interface.h"

//#include "LAYER2/MAC/pre_processor.c"
#include "pdcp.h"

#if defined(ENABLE_ITTI)
# include "intertask_interface.h"
#endif

66
#define ENABLE_MAC_PAYLOAD_DEBUG
67
68
69
70
71
#define DEBUG_eNB_SCHEDULER 1

// This table holds the allowable PRB sizes for ULSCH transmissions
uint8_t rb_table[33] = {1,2,3,4,5,6,8,9,10,12,15,16,18,20,24,25,27,30,32,36,40,45,48,50,54,60,72,75,80,81,90,96,100};

gauthier's avatar
gauthier committed
72
void rx_sdu(
73
74
75
  const module_id_t enb_mod_idP,
  const int         CC_idP,
  const frame_t     frameP,
gauthier's avatar
gauthier committed
76
  const sub_frame_t subframeP,
77
78
79
80
81
  const rnti_t      rntiP,
  uint8_t          *sduP,
  const uint16_t    sdu_lenP,
  const int         harq_pidP,
  uint8_t          *msg3_flagP)
82
83
84
85
86
87
88
89
90
91
92
93
94
{

  unsigned char  rx_ces[MAX_NUM_CE],num_ce,num_sdu,i,*payload_ptr;
  unsigned char  rx_lcids[NB_RB_MAX];
  unsigned short rx_lengths[NB_RB_MAX];
  int    UE_id = find_UE_id(enb_mod_idP,rntiP);
  int ii,j;
  eNB_MAC_INST *eNB = &eNB_mac_inst[enb_mod_idP];
  UE_list_t *UE_list= &eNB->UE_list;

  start_meas(&eNB->rx_ulsch_sdu);

  if ((UE_id >  NUMBER_OF_UE_MAX) || (UE_id == -1)  )
95
96
97
    for(ii=0; ii<NB_RB_MAX; ii++) {
      rx_lengths[ii] = 0;
    }
98

gauthier's avatar
gauthier committed
99
  VCD_SIGNAL_DUMPER_DUMP_FUNCTION_BY_NAME(VCD_SIGNAL_DUMPER_FUNCTIONS_RX_SDU,1);
gauthier's avatar
gauthier committed
100
  if (opt_enabled == 1) {
nikaeinn's avatar
nikaeinn committed
101
    trace_pdu(0, sduP,sdu_lenP, 0, 3, rntiP,subframeP, 0,0);
gauthier's avatar
gauthier committed
102
    LOG_D(OPT,"[eNB %d][ULSCH] Frame %d  rnti %x  with size %d\n",
nikaeinn's avatar
nikaeinn committed
103
    		  enb_mod_idP, frameP, rntiP, sdu_lenP);
gauthier's avatar
gauthier committed
104
  }
105

106
  LOG_D(MAC,"[eNB %d] CC_id %d Received ULSCH sdu from PHY (rnti %x, UE_id %d), parsing header\n",enb_mod_idP,CC_idP,rntiP,UE_id);
107
  
108
  payload_ptr = parse_ulsch_header(sduP,&num_ce,&num_sdu,rx_ces,rx_lcids,rx_lengths,sdu_lenP);
109
110
111
112
 
  eNB->eNB_stats[CC_idP].ulsch_bytes_rx=sdu_lenP;
  eNB->eNB_stats[CC_idP].total_ulsch_bytes_rx+=sdu_lenP;
  eNB->eNB_stats[CC_idP].total_ulsch_pdus_rx+=1;
113
114
115
116
117
118
119
  // control element
  for (i=0; i<num_ce; i++) {

    switch (rx_ces[i]) { // implement and process BSR + CRNTI +
    case POWER_HEADROOM:
      if (UE_id != -1) {
        UE_list->UE_template[CC_idP][UE_id].phr_info =  (payload_ptr[0] & 0x3f) - PHR_MAPPING_OFFSET;
120
121
        LOG_D(MAC, "[eNB %d] CC_id %d MAC CE_LCID %d : Received PHR PH = %d (db)\n",
              enb_mod_idP, CC_idP, rx_ces[i], UE_list->UE_template[CC_idP][UE_id].phr_info);
122
123
124
125
126
127
128
        UE_list->UE_template[CC_idP][UE_id].phr_info_configured=1;
      }

      payload_ptr+=sizeof(POWER_HEADROOM_CMD);
      break;

    case CRNTI:
129
      UE_id = find_UE_id(enb_mod_idP,(((uint16_t)payload_ptr[0])<<8) + payload_ptr[1]);
130
      LOG_I(MAC, "[eNB %d] CC_id %d MAC CE_LCID %d (ce %d/%d): CRNTI %x (UE_id %d) in Msg3\n",enb_mod_idP, CC_idP, rx_ces[i], i,num_ce,(((uint16_t)payload_ptr[0])<<8) + payload_ptr[1],UE_id);
131

roux's avatar
roux committed
132
      payload_ptr+=2;
133
      /* we don't process this CE yet */
roux's avatar
roux committed
134
      if (msg3_flagP != NULL) {
135
	*msg3_flagP = 0;
roux's avatar
roux committed
136
      }
137
138
139
140
      break;

    case TRUNCATED_BSR:
    case SHORT_BSR: {
141
142
143
144
145
146
      uint8_t lcgid;
      lcgid = (payload_ptr[0] >> 6);

      LOG_D(MAC, "[eNB %d] CC_id %d MAC CE_LCID %d : Received short BSR LCGID = %u bsr = %d\n",
	    enb_mod_idP, CC_idP, rx_ces[i], lcgid, payload_ptr[0] & 0x3f);

147
      if (UE_id  != -1) {
148

149
150
        UE_list->UE_template[CC_idP][UE_id].bsr_info[lcgid] = (payload_ptr[0] & 0x3f);

151
        if (UE_list->UE_template[CC_idP][UE_id].ul_buffer_creation_time[lcgid] == 0 ) {
152
          UE_list->UE_template[CC_idP][UE_id].ul_buffer_creation_time[lcgid]=frameP;
153
        }
154
      }
155
      else {
156

157
      }
158
      payload_ptr += 1;//sizeof(SHORT_BSR); // fixme
knopp's avatar
   
knopp committed
159
    }
160
    break;
gauthier's avatar
   
gauthier committed
161

162
163
164
165
166
167
168
169
    case LONG_BSR:
      if (UE_id  != -1) {
        UE_list->UE_template[CC_idP][UE_id].bsr_info[LCGID0] = ((payload_ptr[0] & 0xFC) >> 2);
        UE_list->UE_template[CC_idP][UE_id].bsr_info[LCGID1] =
          ((payload_ptr[0] & 0x03) << 4) | ((payload_ptr[1] & 0xF0) >> 4);
        UE_list->UE_template[CC_idP][UE_id].bsr_info[LCGID2] =
          ((payload_ptr[1] & 0x0F) << 2) | ((payload_ptr[2] & 0xC0) >> 6);
        UE_list->UE_template[CC_idP][UE_id].bsr_info[LCGID3] = (payload_ptr[2] & 0x3F);
170
        LOG_D(MAC, "[eNB %d] CC_id %d MAC CE_LCID %d: Received long BSR LCGID0 = %u LCGID1 = "
171
              "%u LCGID2 = %u LCGID3 = %u\n",
172
              enb_mod_idP, CC_idP,
173
174
175
176
177
178
              rx_ces[i],
              UE_list->UE_template[CC_idP][UE_id].bsr_info[LCGID0],
              UE_list->UE_template[CC_idP][UE_id].bsr_info[LCGID1],
              UE_list->UE_template[CC_idP][UE_id].bsr_info[LCGID2],
              UE_list->UE_template[CC_idP][UE_id].bsr_info[LCGID3]);

179
        if (UE_list->UE_template[CC_idP][UE_id].bsr_info[LCGID0] == 0 ) {
180
          UE_list->UE_template[CC_idP][UE_id].ul_buffer_creation_time[LCGID0]=0;
181
        } else if (UE_list->UE_template[CC_idP][UE_id].ul_buffer_creation_time[LCGID0] == 0) {
182
          UE_list->UE_template[CC_idP][UE_id].ul_buffer_creation_time[LCGID0]=frameP;
183
        }
184

185
        if (UE_list->UE_template[CC_idP][UE_id].bsr_info[LCGID1] == 0 ) {
186
          UE_list->UE_template[CC_idP][UE_id].ul_buffer_creation_time[LCGID1]=0;
187
        } else if (UE_list->UE_template[CC_idP][UE_id].ul_buffer_creation_time[LCGID1] == 0) {
188
          UE_list->UE_template[CC_idP][UE_id].ul_buffer_creation_time[LCGID1]=frameP;
189
        }
190

191
        if (UE_list->UE_template[CC_idP][UE_id].bsr_info[LCGID2] == 0 ) {
192
          UE_list->UE_template[CC_idP][UE_id].ul_buffer_creation_time[LCGID2]=0;
193
        } else if (UE_list->UE_template[CC_idP][UE_id].ul_buffer_creation_time[LCGID2] == 0) {
194
          UE_list->UE_template[CC_idP][UE_id].ul_buffer_creation_time[LCGID2]=frameP;
195
        }
196

197
        if (UE_list->UE_template[CC_idP][UE_id].bsr_info[LCGID3] == 0 ) {
198
          UE_list->UE_template[CC_idP][UE_id].ul_buffer_creation_time[LCGID3]= 0;
199
        } else if (UE_list->UE_template[CC_idP][UE_id].ul_buffer_creation_time[LCGID3] == 0) {
200
201
          UE_list->UE_template[CC_idP][UE_id].ul_buffer_creation_time[LCGID3]=frameP;

202
        }
203
204
205
206
207
208
      }

      payload_ptr += 3;////sizeof(LONG_BSR);
      break;

    default:
209
      LOG_E(MAC, "[eNB %d] CC_id %d Received unknown MAC header (0x%02x)\n", enb_mod_idP, CC_idP, rx_ces[i]);
210
211
212
213
214
215
216
217
218
      break;
    }
  }

  for (i=0; i<num_sdu; i++) {
    LOG_D(MAC,"SDU Number %d MAC Subheader SDU_LCID %d, length %d\n",i,rx_lcids[i],rx_lengths[i]);

    switch (rx_lcids[i]) {
    case CCCH :
219
220
      LOG_I(MAC,"[eNB %d][RAPROC] CC_id %d Frame %d, Received CCCH:  %x.%x.%x.%x.%x.%x, Terminating RA procedure for UE rnti %x\n",
            enb_mod_idP,CC_idP,frameP,
221
222
223
            payload_ptr[0],payload_ptr[1],payload_ptr[2],payload_ptr[3],payload_ptr[4], payload_ptr[5], rntiP);

      for (ii=0; ii<NB_RA_PROC_MAX; ii++) {
224
        LOG_D(MAC,"[eNB %d][RAPROC] CC_id %d Checking proc %d : rnti (%x, %x), active %d\n",
225
              enb_mod_idP, CC_idP, ii,
226
227
              eNB->common_channels[CC_idP].RA_template[ii].rnti, rntiP,
              eNB->common_channels[CC_idP].RA_template[ii].RA_active);
gauthier's avatar
   
gauthier committed
228

229
230
        if ((eNB->common_channels[CC_idP].RA_template[ii].rnti==rntiP) &&
            (eNB->common_channels[CC_idP].RA_template[ii].RA_active==TRUE)) {
gauthier's avatar
   
gauthier committed
231

232
          //payload_ptr = parse_ulsch_header(msg3,&num_ce,&num_sdu,rx_ces,rx_lcids,rx_lengths,msg3_len);
gauthier's avatar
   
gauthier committed
233

234
235
          if (UE_id < 0) {
            memcpy(&eNB->common_channels[CC_idP].RA_template[ii].cont_res_id[0],payload_ptr,6);
knopp's avatar
knopp committed
236
            LOG_I(MAC,"[eNB %d][RAPROC] CC_id %d Frame %d CCCH: Received Msg3: length %d, offset %d\n",
237
                  enb_mod_idP,CC_idP,frameP,rx_lengths[i],payload_ptr-sduP);
gauthier's avatar
   
gauthier committed
238

239
            if ((UE_id=add_new_ue(enb_mod_idP,CC_idP,eNB->common_channels[CC_idP].RA_template[ii].rnti,harq_pidP)) == -1 ) {
240
              mac_xface->macphy_exit("[MAC][eNB] Max user count reached\n");
kaltenbe's avatar
kaltenbe committed
241
	      // kill RA procedure
242
            } else
243
244
              LOG_I(MAC,"[eNB %d][RAPROC] CC_id %d Frame %d Added user with rnti %x => UE %d\n",
                    enb_mod_idP,CC_idP,frameP,eNB->common_channels[CC_idP].RA_template[ii].rnti,UE_id);
245
          } else {
knopp's avatar
knopp committed
246
            LOG_I(MAC,"[eNB %d][RAPROC] CC_id %d Frame %d CCCH: Received Msg3 from already registered UE %d: length %d, offset %d\n",
247
                  enb_mod_idP,CC_idP,frameP,UE_id,rx_lengths[i],payload_ptr-sduP);
kaltenbe's avatar
kaltenbe committed
248
	    // kill RA procedure
249
          }
gauthier's avatar
   
gauthier committed
250

251
          if (Is_rrc_registered == 1)
252
253
            mac_rrc_data_ind(
              enb_mod_idP,
254
              CC_idP,
gauthier's avatar
gauthier committed
255
              frameP,subframeP,
256
257
258
              rntiP,
              CCCH,
              (uint8_t*)payload_ptr,
259
              rx_lengths[i],
260
261
262
              ENB_FLAG_YES,
              enb_mod_idP,
              0);
gauthier's avatar
   
gauthier committed
263
264


265
266
267
          if (num_ce >0) {  // handle msg3 which is not RRCConnectionRequest
            //  process_ra_message(msg3,num_ce,rx_lcids,rx_ces);
          }
gauthier's avatar
   
gauthier committed
268

269
270
          eNB->common_channels[CC_idP].RA_template[ii].generate_Msg4 = 1;
          eNB->common_channels[CC_idP].RA_template[ii].wait_ack_Msg4 = 0;
gauthier's avatar
   
gauthier committed
271

272
273
        } // if process is active
      } // loop on RA processes
gauthier's avatar
   
gauthier committed
274

275
      break;
gauthier's avatar
   
gauthier committed
276

277
278
279
    case  DCCH :
    case DCCH1 :
      //      if(eNB_mac_inst[module_idP][CC_idP].Dcch_lchan[UE_id].Active==1){
gauthier's avatar
   
gauthier committed
280

knopp's avatar
   
knopp committed
281
#if defined(ENABLE_MAC_PAYLOAD_DEBUG)
282
283
      LOG_T(MAC,"offset: %d\n",(unsigned char)((unsigned char*)payload_ptr-sduP));

284
      for (j=0; j<32; j++) {
285
        LOG_T(MAC,"%x ",payload_ptr[j]);
286
      }
287
288

      LOG_T(MAC,"\n");
knopp's avatar
   
knopp committed
289
#endif
gauthier's avatar
   
gauthier committed
290

roux's avatar
roux committed
291
292
293
294
295
296
297
      if (UE_id != -1) {
        //  This check is just to make sure we didn't get a bogus SDU length, to be removed ...
        if (rx_lengths[i]<CCCH_PAYLOAD_SIZE_MAX) {
          LOG_D(MAC,"[eNB %d] CC_id %d Frame %d : ULSCH -> UL-DCCH, received %d bytes form UE %d on LCID %d \n",
                enb_mod_idP,CC_idP,frameP, rx_lengths[i], UE_id, rx_lcids[i]);

          mac_rlc_data_ind(
298
299
300
301
302
303
304
305
306
307
308
			   enb_mod_idP,
			   rntiP,
			   enb_mod_idP,
			   frameP,
			   ENB_FLAG_YES,
			   MBMS_FLAG_NO,
			   rx_lcids[i],
			   (char *)payload_ptr,
			   rx_lengths[i],
			   1,
			   NULL);//(unsigned int*)crc_status);
roux's avatar
roux committed
309
310
311
312
          UE_list->eNB_UE_stats[CC_idP][UE_id].num_pdu_rx[rx_lcids[i]]+=1;
          UE_list->eNB_UE_stats[CC_idP][UE_id].num_bytes_rx[rx_lcids[i]]+=rx_lengths[i];
        }
      } /* UE_id != -1 */
313
314
315
316
317
318

      //      }
      break;

    case DTCH: // default DRB
      //      if(eNB_mac_inst[module_idP][CC_idP].Dcch_lchan[UE_id].Active==1){
gauthier's avatar
   
gauthier committed
319

knopp's avatar
   
knopp committed
320
#if defined(ENABLE_MAC_PAYLOAD_DEBUG)
321
      LOG_T(MAC,"offset: %d\n",(unsigned char)((unsigned char*)payload_ptr-sduP));
gauthier's avatar
   
gauthier committed
322

323
      for (j=0; j<32; j++) {
324
        LOG_T(MAC,"%x ",payload_ptr[j]);
325
      }
gauthier's avatar
   
gauthier committed
326

327
328
329
      LOG_T(MAC,"\n");
#endif

330
331
      LOG_D(MAC,"[eNB %d] CC_id %d Frame %d : ULSCH -> UL-DTCH, received %d bytes from UE %d for lcid %d\n",
            enb_mod_idP,CC_idP,frameP, rx_lengths[i], UE_id,rx_lcids[i]);
332

roux's avatar
roux committed
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
      if (UE_id != -1) {
        if ((rx_lengths[i] <SCH_PAYLOAD_SIZE_MAX) &&  (rx_lengths[i] > 0) ) {   // MAX SIZE OF transport block
          mac_rlc_data_ind(
            enb_mod_idP,
            rntiP,
            enb_mod_idP,
            frameP,
            ENB_FLAG_YES,
            MBMS_FLAG_NO,
            DTCH,
            (char *)payload_ptr,
            rx_lengths[i],
            1,
            NULL);//(unsigned int*)crc_status);
          UE_list->eNB_UE_stats[CC_idP][UE_id].num_pdu_rx[rx_lcids[i]]+=1;
          UE_list->eNB_UE_stats[CC_idP][UE_id].num_bytes_rx[rx_lcids[i]]+=rx_lengths[i];
        }
      } /* UE_id != -1 */
351
352
353
354
355

      //      }
      break;

    default :  //if (rx_lcids[i] >= DTCH) {
roux's avatar
roux committed
356
357
      if (UE_id != -1)
        UE_list->eNB_UE_stats[CC_idP][UE_id].num_errors_rx+=1;
358
359
      LOG_E(MAC,"[eNB %d] CC_id %d Frame %d : received unsupported or unknown LCID %d from UE %d ",
            enb_mod_idP, CC_idP, frameP, rx_lcids[i], UE_id);
360
      break;
knopp's avatar
   
knopp committed
361
    }
362
363
364
365
366
367

    payload_ptr+=rx_lengths[i];
  }

  /* NN--> FK: we could either check the payload, or use a phy helper to detect a false msg3 */
  if ((num_sdu == 0) && (num_ce==0)) {
roux's avatar
roux committed
368
369
    if (UE_id != -1)
      UE_list->eNB_UE_stats[CC_idP][UE_id].total_num_errors_rx+=1;
370
371
372

    if (msg3_flagP != NULL) {
      if( *msg3_flagP == 1 ) {
373
        LOG_N(MAC,"[eNB %d] CC_id %d frame %d : false msg3 detection: signal phy to canceling RA and remove the UE\n", enb_mod_idP, CC_idP, frameP);
374
375
        *msg3_flagP=0;
      }
376
    }
377
  } else {
roux's avatar
roux committed
378
379
380
381
382
    if (UE_id != -1) {
      UE_list->eNB_UE_stats[CC_idP][UE_id].pdu_bytes_rx=sdu_lenP;
      UE_list->eNB_UE_stats[CC_idP][UE_id].total_pdu_bytes_rx+=sdu_lenP;
      UE_list->eNB_UE_stats[CC_idP][UE_id].total_num_pdus_rx+=1;
    }
383
384
  }

gauthier's avatar
gauthier committed
385
  VCD_SIGNAL_DUMPER_DUMP_FUNCTION_BY_NAME(VCD_SIGNAL_DUMPER_FUNCTIONS_RX_SDU,0);
386
  stop_meas(&eNB->rx_ulsch_sdu);
knopp's avatar
   
knopp committed
387
388
389
}


390
391
uint32_t bytes_to_bsr_index(int32_t nbytes)
{
392

393
  uint32_t i=0;
394

395
  if (nbytes<0) {
396
    return(0);
397
  }
398

399
400
401
402
403
404
  while ((i<BSR_TABLE_SIZE)&&
         (BSR_TABLE[i]<=nbytes)) {
    i++;
  }

  return(i-1);
405
406
}

407
void adjust_bsr_info(int buffer_occupancy,
gauthier's avatar
   
gauthier committed
408
                     uint16_t TBS,
409
410
411
412
413
414
415
416
417
418
419
420
421
                     UE_TEMPLATE *UE_template)
{

  uint32_t         tmp_bsr;

  // could not serve all the uplink traffic
  if (buffer_occupancy > 0 ) {
    if (BSR_TABLE[UE_template->bsr_info[LCGID0]] <=  TBS ) {
      tmp_bsr = BSR_TABLE[UE_template->bsr_info[LCGID0]]; // serving this amout of  bytes
      UE_template->bsr_info[LCGID0] = 0;

      if (BSR_TABLE[UE_template->bsr_info[LCGID1]] <= (TBS-tmp_bsr)) {
        tmp_bsr += BSR_TABLE[UE_template->bsr_info[LCGID1]];
gauthier's avatar
   
gauthier committed
422
        UE_template->bsr_info[LCGID1] = 0;
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441

        if (BSR_TABLE[UE_template->bsr_info[LCGID2]] <= (TBS-tmp_bsr)) {
          tmp_bsr += BSR_TABLE[UE_template->bsr_info[LCGID2]];
          UE_template->bsr_info[LCGID2] = 0;

          if (BSR_TABLE[UE_template->bsr_info[LCGID3]] <= (TBS-tmp_bsr)) {
            tmp_bsr += BSR_TABLE[UE_template->bsr_info[LCGID3]];
            UE_template->bsr_info[LCGID3] = 0;
          } else {
            UE_template->bsr_info[LCGID3] = bytes_to_bsr_index((int32_t)BSR_TABLE[UE_template->bsr_info[LCGID3]] - ((int32_t) TBS - (int32_t)tmp_bsr));
          }
        } else {
          UE_template->bsr_info[LCGID2] = bytes_to_bsr_index((int32_t)BSR_TABLE[UE_template->bsr_info[LCGID2]] - ((int32_t)TBS - (int32_t)tmp_bsr));
        }
      } else {
        UE_template->bsr_info[LCGID1] = bytes_to_bsr_index((int32_t)BSR_TABLE[UE_template->bsr_info[LCGID1]] - ((int32_t)TBS - (int32_t)tmp_bsr));
      }
    } else {
      UE_template->bsr_info[LCGID0] = bytes_to_bsr_index((int32_t)BSR_TABLE[UE_template->bsr_info[LCGID0]] - (int32_t)TBS);
442
    }
443
444
445
446
447
448
  } else { // we have flushed all buffers so clear bsr
    UE_template->bsr_info[LCGID0] = 0;
    UE_template->bsr_info[LCGID1] = 0;
    UE_template->bsr_info[LCGID2] = 0;
    UE_template->bsr_info[LCGID3] = 0;
  }
449
450
451


}
452

453
454
void add_ue_ulsch_info(module_id_t module_idP, int CC_id, int UE_id, sub_frame_t subframeP, UE_ULSCH_STATUS status)
{
455

456
457
458
  eNB_ulsch_info[module_idP][CC_id][UE_id].rnti             = UE_RNTI(module_idP,UE_id);
  eNB_ulsch_info[module_idP][CC_id][UE_id].subframe         = subframeP;
  eNB_ulsch_info[module_idP][CC_id][UE_id].status           = status;
459

460
  eNB_ulsch_info[module_idP][CC_id][UE_id].serving_num++;
461
462
463

}

knopp's avatar
   
knopp committed
464
465
466
// This seems not to be used anymore
/*
int schedule_next_ulue(module_id_t module_idP, int UE_id, sub_frame_t subframeP){
467

knopp's avatar
   
knopp committed
468
  int next_ue;
469
470
471

  // first phase: scheduling for ACK
  switch (subframeP) {
knopp's avatar
   
knopp committed
472
    // scheduling for subframeP 2: for scheduled user during subframeP 5 and 6
473
  case 8:
knopp's avatar
   
knopp committed
474
    if  ((eNB_dlsch_info[module_idP][UE_id].status == S_DL_SCHEDULED) &&
475
   (eNB_dlsch_info[module_idP][UE_id].subframe == 5 || eNB_dlsch_info[module_idP][UE_id].subframe == 6)){
knopp's avatar
   
knopp committed
476
477
478
      // set the downlink status
      eNB_dlsch_info[module_idP][UE_id].status = S_DL_BUFFERED;
      return UE_id;
479
480
481
482
    }
    break;
    // scheduling for subframeP 3: for scheduled user during subframeP 7 and 8
  case 9:
knopp's avatar
   
knopp committed
483
    if  ((eNB_dlsch_info[module_idP][UE_id].status == S_DL_SCHEDULED) &&
484
   (eNB_dlsch_info[module_idP][UE_id].subframe == 7 || eNB_dlsch_info[module_idP][UE_id].subframe == 8)){
knopp's avatar
   
knopp committed
485
486
      eNB_dlsch_info[module_idP][UE_id].status = S_DL_BUFFERED;
      return UE_id;
487
488
489
490
    }
    break;
    // scheduling UL subframeP 4: for scheduled user during subframeP 9 and 0
  case 0 :
knopp's avatar
   
knopp committed
491
    if  ((eNB_dlsch_info[module_idP][UE_id].status == S_DL_SCHEDULED) &&
492
   (eNB_dlsch_info[module_idP][UE_id].subframe == 9 || eNB_dlsch_info[module_idP][UE_id].subframe == 0)){
knopp's avatar
   
knopp committed
493
494
      eNB_dlsch_info[module_idP][UE_id].status = S_DL_BUFFERED;
      return UE_id;
495
496
497
498
499
500
501
502
503
    }
    break;
  default:
    break;
  }

  // second phase
  for (next_ue=0; next_ue <NUMBER_OF_UE_MAX; next_ue++ ){

knopp's avatar
   
knopp committed
504
505
506
507
508
    if  (eNB_ulsch_info[module_idP][next_ue].status == S_UL_WAITING )
      return next_ue;
    else if (eNB_ulsch_info[module_idP][next_ue].status == S_UL_SCHEDULED){
      eNB_ulsch_info[module_idP][next_ue].status = S_UL_BUFFERED;
    }
509
510
  }
  for (next_ue=0; next_ue <NUMBER_OF_UE_MAX; next_ue++ ){
knopp's avatar
   
knopp committed
511
512
    if (eNB_ulsch_info[module_idP][next_ue].status != S_UL_NONE )// do this just for active UEs
      eNB_ulsch_info[module_idP][next_ue].status = S_UL_WAITING;
513
514
515
516
517
  }
  next_ue = 0;
  return next_ue;

}
gauthier's avatar
   
gauthier committed
518
 */
519
520
521
522
523
524





unsigned char *parse_ulsch_header(unsigned char *mac_header,
gauthier's avatar
   
gauthier committed
525
526
527
528
529
                                  unsigned char *num_ce,
                                  unsigned char *num_sdu,
                                  unsigned char *rx_ces,
                                  unsigned char *rx_lcids,
                                  unsigned short *rx_lengths,
530
531
532
533
534
535
536
537
538
                                  unsigned short tb_length)
{

  unsigned char not_done=1,num_ces=0,num_sdus=0,lcid,num_sdu_cnt;
  unsigned char *mac_header_ptr = mac_header;
  unsigned short length, ce_len=0;

  while (not_done==1) {

539
    if (((SCH_SUBHEADER_FIXED*)mac_header_ptr)->E == 0) {
540
      not_done = 0;
541
    }
542
543
544
545
546
547
548
549

    lcid = ((SCH_SUBHEADER_FIXED *)mac_header_ptr)->LCID;

    if (lcid < EXTENDED_POWER_HEADROOM) {
      if (not_done==0) { // last MAC SDU, length is implicit
        mac_header_ptr++;
        length = tb_length-(mac_header_ptr-mac_header)-ce_len;

550
        for (num_sdu_cnt=0; num_sdu_cnt < num_sdus ; num_sdu_cnt++) {
551
          length -= rx_lengths[num_sdu_cnt];
552
        }
553
554
555
556
557
558
559
      } else {
        if (((SCH_SUBHEADER_SHORT *)mac_header_ptr)->F == 0) {
          length = ((SCH_SUBHEADER_SHORT *)mac_header_ptr)->L;
          mac_header_ptr += 2;//sizeof(SCH_SUBHEADER_SHORT);
        } else { // F = 1
          length = ((((SCH_SUBHEADER_LONG *)mac_header_ptr)->L_MSB & 0x7f ) << 8 ) | (((SCH_SUBHEADER_LONG *)mac_header_ptr)->L_LSB & 0xff);
          mac_header_ptr += 3;//sizeof(SCH_SUBHEADER_LONG);
gauthier's avatar
   
gauthier committed
560
        }
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
      }

      LOG_D(MAC,"[eNB] sdu %d lcid %d tb_length %d length %d (offset now %d)\n",
            num_sdus,lcid,tb_length, length,mac_header_ptr-mac_header);
      rx_lcids[num_sdus] = lcid;
      rx_lengths[num_sdus] = length;
      num_sdus++;
    } else { // This is a control element subheader POWER_HEADROOM, BSR and CRNTI
      if (lcid == SHORT_PADDING) {
        mac_header_ptr++;
      } else {
        rx_ces[num_ces] = lcid;
        num_ces++;
        mac_header_ptr++;

576
        if (lcid==LONG_BSR) {
577
          ce_len+=3;
578
        } else if (lcid==CRNTI) {
579
          ce_len+=2;
580
        } else if ((lcid==POWER_HEADROOM) || (lcid==TRUNCATED_BSR)|| (lcid== SHORT_BSR)) {
581
          ce_len++;
582
        } else {
583
584
          LOG_E(MAC,"unknown CE %d \n", lcid);
          mac_xface->macphy_exit("unknown CE");
gauthier's avatar
   
gauthier committed
585
        }
586
      }
knopp's avatar
   
knopp committed
587
    }
588
  }
589

590
591
592
593
  *num_ce = num_ces;
  *num_sdu = num_sdus;

  return(mac_header_ptr);
594
595
596
}


597
598
599
600
601
602
void schedule_ulsch(module_id_t module_idP, 
		    frame_t frameP,
		    unsigned char cooperation_flag,
		    sub_frame_t subframeP, 
		    unsigned char sched_subframe) {

gauthier's avatar
   
gauthier committed
603
604


605
606
607
  uint16_t first_rb[MAX_NUM_CCs],i;
  int CC_id;
  eNB_MAC_INST *eNB=&eNB_mac_inst[module_idP];
gauthier's avatar
   
gauthier committed
608

609
  start_meas(&eNB->schedule_ulsch);
gauthier's avatar
   
gauthier committed
610
611


612
  for (CC_id=0; CC_id<MAX_NUM_CCs; CC_id++) {
gauthier's avatar
   
gauthier committed
613

614
    first_rb[CC_id] = 1;
gauthier's avatar
   
gauthier committed
615

616
617
618
619
    // UE data info;
    // check which UE has data to transmit
    // function to decide the scheduling
    // e.g. scheduling_rslt = Greedy(granted_UEs, nb_RB)
gauthier's avatar
   
gauthier committed
620

621
622
    // default function for default scheduling
    //
gauthier's avatar
   
gauthier committed
623

624
625
626
627
    // output of scheduling, the UE numbers in RBs, where it is in the code???
    // check if RA (Msg3) is active in this subframeP, if so skip the PRBs used for Msg3
    // Msg3 is using 1 PRB so we need to increase first_rb accordingly
    // not sure about the break (can there be more than 1 active RA procedure?)
gauthier's avatar
   
gauthier committed
628

629
630
631
632
    for (i=0; i<NB_RA_PROC_MAX; i++) {
      if ((eNB->common_channels[CC_id].RA_template[i].RA_active == TRUE) &&
          (eNB->common_channels[CC_id].RA_template[i].generate_rar == 0) &&
          (eNB->common_channels[CC_id].RA_template[i].Msg3_subframe == sched_subframe)) {
knopp's avatar
knopp committed
633
	//leave out first RB for PUCCH
634
635
636
        first_rb[CC_id]++;
        break;
      }
knopp's avatar
   
knopp committed
637
    }
knopp's avatar
knopp committed
638
639
640
641
642
643

    /*
    if (mac_xface->is_prach_subframe(&(mac_xface->lte_frame_parms),frameP,subframeP)) {
      first_rb[CC_id] = (mac_xface->get_prach_prb_offset(&(mac_xface->lte_frame_parms),
    */

644
  }
645

646
  schedule_ulsch_rnti(module_idP, cooperation_flag, frameP, subframeP, sched_subframe,first_rb);
gauthier's avatar
   
gauthier committed
647

648
#ifdef CBA
649
  schedule_ulsch_cba_rnti(module_idP, cooperation_flag, frameP, subframeP, sched_subframe, first_rb);
650
651
#endif

knopp's avatar
   
knopp committed
652

653
  stop_meas(&eNB->schedule_ulsch);
gauthier's avatar
   
gauthier committed
654

655
656
657
658
659
660
661
662
663
}



void schedule_ulsch_rnti(module_id_t   module_idP,
                         unsigned char cooperation_flag,
                         frame_t       frameP,
                         sub_frame_t   subframeP,
                         unsigned char sched_subframe,
664
665
666
667
668
669
670
671
672
673
674
675
676
                         uint16_t     *first_rb)
{

  int                UE_id;
  uint8_t            aggregation    = 2;
  rnti_t             rnti           = -1;
  uint8_t            round          = 0;
  uint8_t            harq_pid       = 0;
  void              *ULSCH_dci      = NULL;
  LTE_eNB_UE_stats  *eNB_UE_stats   = NULL;
  DCI_PDU           *DCI_pdu;
  uint8_t                 status         = 0;
  uint8_t                 rb_table_index = -1;
knopp's avatar
knopp committed
677
  uint16_t                TBS = 0;
678
679
680
681
682
  int32_t                buffer_occupancy=0;
  uint32_t                cqi_req,cshift,ndi,mcs,rballoc,tpc;
  int32_t                 normalized_rx_power, target_rx_power=-90;
  static int32_t          tpc_accumulated=0;

683
  int n,CC_id = 0;
684
685
686
687
688
689
690
691
692
693
694
695
696
  eNB_MAC_INST      *eNB=&eNB_mac_inst[module_idP];
  UE_list_t         *UE_list=&eNB->UE_list;
  UE_TEMPLATE       *UE_template;
  int                rvidx_tab[4] = {0,2,3,1};
  LTE_DL_FRAME_PARMS   *frame_parms;


  //  LOG_I(MAC,"entering ulsch preprocesor\n");

  ulsch_scheduler_pre_processor(module_idP,
                                frameP,
                                subframeP,
                                first_rb,
697
                                aggregation);
698
699
700
701
702
703
704

  //  LOG_I(MAC,"exiting ulsch preprocesor\n");

  // loop over all active UEs
  for (UE_id=UE_list->head_ul; UE_id>=0; UE_id=UE_list->next_ul[UE_id]) {

    // don't schedule if Msg4 is not received yet
705
    if (UE_list->UE_template[UE_PCCID(module_idP,UE_id)][UE_id].configured==FALSE) {
706
      continue;
707
    }
708
709
710

    rnti = UE_RNTI(module_idP,UE_id);

711
    if (rnti==NOT_A_RNTI) {
712
      LOG_W(MAC,"[eNB %d] frame %d subfarme %d, UE %d: no RNTI \n", module_idP,frameP,subframeP,UE_id);
713
714
      continue;
    }
gauthier's avatar
   
gauthier committed
715

716
717
718
719
720
721
    // loop over all active UL CC_ids for this UE
    for (n=0; n<UE_list->numactiveULCCs[UE_id]; n++) {
      // This is the actual CC_id in the list
      CC_id = UE_list->ordered_ULCCids[n][UE_id];
      frame_parms = mac_xface->get_lte_frame_parms(module_idP,CC_id);
      eNB_UE_stats = mac_xface->get_eNB_UE_stats(module_idP,CC_id,rnti);
gauthier's avatar
   
gauthier committed
722

723
724
725
726
727
      if (eNB_UE_stats==NULL) {
        LOG_W(MAC,"[eNB %d] frame %d subframe %d, UE %d CC %d: no PHY context\n", module_idP,frameP,subframeP,UE_id,CC_id);
        continue; // mac_xface->macphy_exit("[MAC][eNB] Cannot find eNB_UE_stats\n");
      }

728
729
      if (CCE_allocation_infeasible(module_idP,CC_id,0,subframeP,aggregation,rnti)) {
        LOG_W(MAC,"[eNB %d] frame %d subframe %d, UE %d/%x CC %d: not enough nCCE\n", module_idP,frameP,subframeP,UE_id,rnti,CC_id);
730
731
        continue; // break;
      }
gauthier's avatar
   
gauthier committed
732

733
      //      printf("UE %d/%x is feasible, mode %s\n",UE_id,rnti,mode_string[eNB_UE_stats->mode]);
gauthier's avatar
   
gauthier committed
734

735
      if (eNB_UE_stats->mode == PUSCH) { // ue has a ulsch channel
gauthier's avatar
   
gauthier committed
736

737
738
        DCI_pdu = &eNB->common_channels[CC_id].DCI_pdu;
        UE_template = &UE_list->UE_template[CC_id][UE_id];
gauthier's avatar
   
gauthier committed
739

740
        if (mac_xface->get_ue_active_harq_pid(module_idP,CC_id,rnti,frameP,subframeP,&harq_pid,&round,1) == -1 ) {
741
          LOG_W(MAC,"[eNB %d] Scheduler Frame %d, subframeP %d: candidate harq_pid from PHY for UE %d CC %d RNTI %x\n",
742
743
744
745
746
                module_idP,frameP,subframeP, UE_id, CC_id, rnti);
          //  NN --> RK: Don't schedule UE if we cannot get harq pid
          //should we continue or set harq_pid to 0?
          continue;
        } else
747
748
          LOG_T(MAC,"[eNB %d] Frame %d, subframeP %d, UE %d CC %d : got harq pid %d  round %d (rnti %x,mode %s)\n",
                module_idP,frameP,subframeP,UE_id,CC_id, harq_pid, round,rnti,mode_string[eNB_UE_stats->mode]);
gauthier's avatar
   
gauthier committed
749

750
#undef EXMIMO_IOT
751
#ifndef EXMIMO_IOT
752
753
754

        if (((UE_is_to_be_scheduled(module_idP,CC_id,UE_id)>0)) || (round>0) || ((frameP%10)==0))
          // if there is information on bsr of DCCH, DTCH or if there is UL_SR, or if there is a packet to retransmit, or we want to schedule a periodic feedback every 10 frames
755
#else
756
        if (round==0)
757
#endif
758
759
760
761
        {
          // reset the scheduling request
          UE_template->ul_SR = 0;
          aggregation = process_ue_cqi(module_idP,UE_id); // =2 by default!!
762
          status = mac_eNB_get_rrc_status(module_idP,rnti);
763
764
765
766
767
768
769
          cqi_req = (status < RRC_CONNECTED)? 0:1;

          //power control
          //compute the expected ULSCH RX power (for the stats)

          // this is the normalized RX power and this should be constant (regardless of mcs
          normalized_rx_power = eNB_UE_stats->UL_rssi[0];
knopp's avatar
knopp committed
770
          target_rx_power = mac_xface->get_target_pusch_rx_power(module_idP,CC_id);
771
772

          // this assumes accumulated tpc
kaltenbe's avatar
kaltenbe committed
773
	  // make sure that we are only sending a tpc update once a frame, otherwise the control loop will freak out
774
775
776
777
	  int32_t framex10psubframe = UE_template->pusch_tpc_tx_frame*10+UE_template->pusch_tpc_tx_subframe;
          if (((framex10psubframe+10)<=(frameP*10+subframeP)) || //normal case
	      ((framex10psubframe>(frameP*10+subframeP)) && (((10240-framex10psubframe+frameP*10+subframeP)>=10)))) //frame wrap-around
	    {
knopp's avatar
knopp committed
778
779
	    UE_template->pusch_tpc_tx_frame=frameP;
	    UE_template->pusch_tpc_tx_subframe=subframeP;
780
781
782
783
784
785
            if (normalized_rx_power>(target_rx_power+1)) {
              tpc = 0; //-1
              tpc_accumulated--;
            } else if (normalized_rx_power<(target_rx_power-1)) {
              tpc = 2; //+1
              tpc_accumulated++;
786
            } else {
787
              tpc = 1; //0
788
789
            }
          } else {
790
            tpc = 1; //0
791
          }
792

793
	  if (tpc!=1) {
navid's avatar
navid committed
794
	    LOG_D(MAC,"[eNB %d] ULSCH scheduler: frame %d, subframe %d, harq_pid %d, tpc %d, accumulated %d, normalized/target rx power %d/%d\n",
795
796
797
798
		  module_idP,frameP,subframeP,harq_pid,tpc,
		  tpc_accumulated,normalized_rx_power,target_rx_power);
	  }

799
800
801
802
803
          // new transmission
          if (round==0) {

            ndi = 1-UE_template->oldNDI_UL[harq_pid];
            UE_template->oldNDI_UL[harq_pid]=ndi;
804
805
806
	    UE_list->eNB_UE_stats[CC_id][UE_id].normalized_rx_power=normalized_rx_power;
	    UE_list->eNB_UE_stats[CC_id][UE_id].target_rx_power=target_rx_power;
	    UE_list->eNB_UE_stats[CC_id][UE_id].ulsch_mcs1=UE_template->pre_assigned_mcs_ul;
807
808
            mcs = cmin (UE_template->pre_assigned_mcs_ul, openair_daq_vars.target_ue_ul_mcs); // adjust, based on user-defined MCS

809
            if (UE_template->pre_allocated_rb_table_index_ul >=0) {
810
              rb_table_index=UE_template->pre_allocated_rb_table_index_ul;
811
            } else {
812
	      mcs=cmin (10, openair_daq_vars.target_ue_ul_mcs);
813
              rb_table_index=5; // for PHR
814
	    }
815
816
817
818
819
820
821
822
823
824

            UE_list->eNB_UE_stats[CC_id][UE_id].ulsch_mcs2=mcs;
            buffer_occupancy = UE_template->ul_total_buffer;

            while ((rb_table[rb_table_index]>(frame_parms->N_RB_UL-1-first_rb[CC_id])) &&
                   (rb_table_index>0)) {
              rb_table_index--;
            }

            TBS = mac_xface->get_TBS_UL(mcs,rb_table[rb_table_index]);
825
826
	    UE_list->eNB_UE_stats[CC_id][UE_id].total_rbs_used_rx+=rb_table[rb_table_index];
	    UE_list->eNB_UE_stats[CC_id][UE_id].ulsch_TBS=TBS;
827
828
829
830
831
832
833
834
835
            buffer_occupancy -= TBS;
            rballoc = mac_xface->computeRIV(frame_parms->N_RB_UL,
                                            first_rb[CC_id],
                                            rb_table[rb_table_index]);
            // increment for next UE allocation
            first_rb[CC_id]+=rb_table[rb_table_index];
            //store for possible retransmission
            UE_template->nb_rb_ul[harq_pid] = rb_table[rb_table_index];

836
837
            LOG_D(MAC,"[eNB %d][PUSCH %d/%x] CC_id %d Frame %d subframeP %d Scheduled UE %d (mcs %d, first rb %d, nb_rb %d, rb_table_index %d, TBS %d, harq_pid %d)\n",
                  module_idP,harq_pid,rnti,CC_id,frameP,subframeP,UE_id,mcs,
838
839
840
841
842
843
844
845
846
847
848
                  first_rb[CC_id],rb_table[rb_table_index],
                  rb_table_index,TBS,harq_pid);
            // Adjust BSR entries for LCGIDs
            adjust_bsr_info(buffer_occupancy,
                            TBS,
                            UE_template);

          } else if (round > 0) { //we schedule a retransmission

            ndi = UE_template->oldNDI_UL[harq_pid];

849
            if ((round&3)==0) {
850
              mcs = openair_daq_vars.target_ue_ul_mcs;
851
            } else {
852
853
              mcs = rvidx_tab[round&3] + 28; //not correct for round==4!

854
            }
855

856
            LOG_D(MAC,"[eNB %d][PUSCH %d/%x] CC_id %d Frame %d subframeP %d Scheduled UE retransmission (mcs %d, first rb %d, nb_rb %d, harq_pid %d, round %d)\n",
857
                  module_idP,UE_id,rnti,CC_id,frameP,subframeP,mcs,
858
                  first_rb[CC_id],UE_template->nb_rb_ul[harq_pid],
859
		  harq_pid, round);
860
861
862
863
864

            rballoc = mac_xface->computeRIV(frame_parms->N_RB_UL,
                                            first_rb[CC_id],
                                            UE_template->nb_rb_ul[harq_pid]);
            first_rb[CC_id]+=UE_template->nb_rb_ul[harq_pid];  // increment for next UE allocation
865
866
867
868
869
870
871
         
	    UE_list->eNB_UE_stats[CC_id][UE_id].num_retransmission_rx+=1;
	    UE_list->eNB_UE_stats[CC_id][UE_id].rbs_used_retx_rx=UE_template->nb_rb_ul[harq_pid];
	    UE_list->eNB_UE_stats[CC_id][UE_id].total_rbs_used_rx+=UE_template->nb_rb_ul[harq_pid];
	    UE_list->eNB_UE_stats[CC_id][UE_id].ulsch_mcs1=mcs;
	    UE_list->eNB_UE_stats[CC_id][UE_id].ulsch_mcs2=mcs;
	  }
872
873
874

          // Cyclic shift for DM RS
          if(cooperation_flag == 2) {
875
            if(UE_id == 1) { // For Distriibuted Alamouti, cyclic shift applied to 2nd UE
876
              cshift = 1;
877
            } else {
878
              cshift = 0;
879
880
            }
          } else {
881
            cshift = 0;// values from 0 to 7 can be used for mapping the cyclic shift (36.211 , Table 5.5.2.1.1-1)
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

          if (frame_parms->frame_type == TDD) {
            switch (frame_parms->N_RB_UL) {
            case 6:
              ULSCH_dci = UE_template->ULSCH_DCI[harq_pid];

              ((DCI0_1_5MHz_TDD_1_6_t *)ULSCH_dci)->type     = 0;
              ((DCI0_1_5MHz_TDD_1_6_t *)ULSCH_dci)->hopping  = 0;
              ((DCI0_1_5MHz_TDD_1_6_t *)ULSCH_dci)->rballoc  = rballoc;
              ((DCI0_1_5MHz_TDD_1_6_t *)ULSCH_dci)->mcs      = mcs;
              ((DCI0_1_5MHz_TDD_1_6_t *)ULSCH_dci)->ndi      = ndi;
              ((DCI0_1_5MHz_TDD_1_6_t *)ULSCH_dci)->TPC      = tpc;
              ((DCI0_1_5MHz_TDD_1_6_t *)ULSCH_dci)->cshift   = cshift;
              ((DCI0_1_5MHz_TDD_1_6_t *)ULSCH_dci)->padding  = 0;
              ((DCI0_1_5MHz_TDD_1_6_t *)ULSCH_dci)->dai      = UE_template->DAI_ul[sched_subframe];
              ((DCI0_1_5MHz_TDD_1_6_t *)ULSCH_dci)->cqi_req  = cqi_req;

              add_ue_spec_dci(DCI_pdu,
                              ULSCH_dci,
                              rnti,
                              sizeof(DCI0_1_5MHz_TDD_1_6_t),
                              aggregation,
                              sizeof_DCI0_1_5MHz_TDD_1_6_t,
                              format0,
                              0);
              break;

            default:
            case 25:
              ULSCH_dci = UE_template->ULSCH_DCI[harq_pid];

              ((DCI0_5MHz_TDD_1_6_t *)ULSCH_dci)->type     = 0;
              ((DCI0_5MHz_TDD_1_6_t *)ULSCH_dci)->hopping  = 0;
              ((DCI0_5MHz_TDD_1_6_t *)ULSCH_dci)->rballoc  = rballoc;
              ((DCI0_5MHz_TDD_1_6_t *)ULSCH_dci)->mcs      = mcs;
              ((DCI0_5MHz_TDD_1_6_t *)ULSCH_dci)->ndi      = ndi;
              ((DCI0_5MHz_TDD_1_6_t *)ULSCH_dci)->TPC      = tpc;
              ((DCI0_5MHz_TDD_1_6_t *)ULSCH_dci)->cshift   = cshift;
              ((DCI0_5MHz_TDD_1_6_t *)ULSCH_dci)->padding  = 0;
              ((DCI0_5MHz_TDD_1_6_t *)ULSCH_dci)->dai      = UE_template->DAI_ul[sched_subframe];
              ((DCI0_5MHz_TDD_1_6_t *)ULSCH_dci)->cqi_req  = cqi_req;

              add_ue_spec_dci(DCI_pdu,
                              ULSCH_dci,
                              rnti,
                              sizeof(DCI0_5MHz_TDD_1_6_t),
                              aggregation,
                              sizeof_DCI0_5MHz_TDD_1_6_t,
                              format0,
                              0);
              break;

            case 50:
              ULSCH_dci = UE_template->ULSCH_DCI[harq_pid];

              ((DCI0_10MHz_TDD_1_6_t *)ULSCH_dci)->type     = 0;
              ((DCI0_10MHz_TDD_1_6_t *)ULSCH_dci)->hopping  = 0;
              ((DCI0_10MHz_TDD_1_6_t *)ULSCH_dci)->rballoc  = rballoc;
              ((DCI0_10MHz_TDD_1_6_t *)ULSCH_dci)->mcs      = mcs;
              ((DCI0_10MHz_TDD_1_6_t *)ULSCH_dci)->ndi      = ndi;
              ((DCI0_10MHz_TDD_1_6_t *)ULSCH_dci)->TPC      = tpc;
              ((DCI0_10MHz_TDD_1_6_t *)ULSCH_dci)->cshift   = cshift;
              ((DCI0_10MHz_TDD_1_6_t *)ULSCH_dci)->padding  = 0;
              ((DCI0_10MHz_TDD_1_6_t *)ULSCH_dci)->dai      = UE_template->DAI_ul[sched_subframe];
              ((DCI0_10MHz_TDD_1_6_t *)ULSCH_dci)->cqi_req  = cqi_req;

              add_ue_spec_dci(DCI_pdu,
                              ULSCH_dci,
                              rnti,
                              sizeof(DCI0_10MHz_TDD_1_6_t),
                              aggregation,
                              sizeof_DCI0_10MHz_TDD_1_6_t,
                              format0,
                              0);
              break;

            case 100:
              ULSCH_dci = UE_template->ULSCH_DCI[harq_pid];

              ((DCI0_20MHz_TDD_1_6_t *)ULSCH_dci)->type     = 0;
              ((DCI0_20MHz_TDD_1_6_t *)ULSCH_dci)->hopping  = 0;
              ((DCI0_20MHz_TDD_1_6_t *)ULSCH_dci)->rballoc  = rballoc;
              ((DCI0_20MHz_TDD_1_6_t *)ULSCH_dci)->mcs      = mcs;
              ((DCI0_20MHz_TDD_1_6_t *)ULSCH_dci)->ndi      = ndi;
              ((DCI0_20MHz_TDD_1_6_t *)ULSCH_dci)->TPC      = tpc;
              ((DCI0_20MHz_TDD_1_6_t *)ULSCH_dci)->cshift   = cshift;
              ((DCI0_10MHz_TDD_1_6_t *)ULSCH_dci)->padding  = 0;
              ((DCI0_20MHz_TDD_1_6_t *)ULSCH_dci)->dai      = UE_template->DAI_ul[sched_subframe];
              ((DCI0_20MHz_TDD_1_6_t *)ULSCH_dci)->cqi_req  = cqi_req;

              add_ue_spec_dci(DCI_pdu,
                              ULSCH_dci,
                              rnti,
                              sizeof(DCI0_20MHz_TDD_1_6_t),
                              aggregation,
                              sizeof_DCI0_20MHz_TDD_1_6_t,
                              format0,
                              0);
              break;
            }
          } // TDD
          else { //FDD
            switch (frame_parms->N_RB_UL) {
            case 25:
            default:

              ULSCH_dci          = UE_template->ULSCH_DCI[harq_pid];

              ((DCI0_5MHz_FDD_t *)ULSCH_dci)->type     = 0;
              ((DCI0_5MHz_FDD_t *)ULSCH_dci)->hopping  = 0;
              ((DCI0_5MHz_FDD_t *)ULSCH_dci)->rballoc  = rballoc;
              ((DCI0_5MHz_FDD_t *)ULSCH_dci)->mcs      = mcs;
              ((DCI0_5MHz_FDD_t *)ULSCH_dci)->ndi      = ndi;
              ((DCI0_5MHz_FDD_t *)ULSCH_dci)->TPC      = tpc;
              ((DCI0_5MHz_FDD_t *)ULSCH_dci)->cshift   = cshift;
              ((DCI0_5MHz_FDD_t *)ULSCH_dci)->padding  = 0;
              ((DCI0_5MHz_FDD_t *)ULSCH_dci)->cqi_req  = cqi_req;

For faster browsing, not all history is shown. View entire blame