eNB_scheduler_ulsch.c 54.1 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
{

  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;
91
  int crnti_rx=0;
92
93
94
95

  start_meas(&eNB->rx_ulsch_sdu);

  if ((UE_id >  NUMBER_OF_UE_MAX) || (UE_id == -1)  )
96
97
98
    for(ii=0; ii<NB_RB_MAX; ii++) {
      rx_lengths[ii] = 0;
    }
99

gauthier's avatar
gauthier committed
100
  VCD_SIGNAL_DUMPER_DUMP_FUNCTION_BY_NAME(VCD_SIGNAL_DUMPER_FUNCTIONS_RX_SDU,1);
gauthier's avatar
gauthier committed
101
  if (opt_enabled == 1) {
nikaeinn's avatar
nikaeinn committed
102
    trace_pdu(0, sduP,sdu_lenP, 0, 3, rntiP,subframeP, 0,0);
gauthier's avatar
gauthier committed
103
    LOG_D(OPT,"[eNB %d][ULSCH] Frame %d  rnti %x  with size %d\n",
nikaeinn's avatar
nikaeinn committed
104
    		  enb_mod_idP, frameP, rntiP, sdu_lenP);
gauthier's avatar
gauthier committed
105
  }
106

107
  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);
108

109
  if (UE_id!=-1) {
110
    UE_list->UE_sched_ctrl[UE_id].ul_inactivity_timer=0;
111
    UE_list->UE_sched_ctrl[UE_id].ul_failure_timer=0;
Florian Kaltenberger's avatar
Florian Kaltenberger committed
112
113
114
115
    if (UE_list->UE_sched_ctrl[UE_id].ul_out_of_sync > 0) {
      UE_list->UE_sched_ctrl[UE_id].ul_out_of_sync=0;
      mac_eNB_rrc_ul_in_sync(enb_mod_idP,CC_idP,frameP,subframeP,UE_RNTI(enb_mod_idP,UE_id));
    }
116
  }
117
  payload_ptr = parse_ulsch_header(sduP,&num_ce,&num_sdu,rx_ces,rx_lcids,rx_lengths,sdu_lenP);
118
119
120
121
 
  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;
122
123
124
125
126
127
128
  // 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;
129
130
        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);
131
132
133
134
135
136
137
        UE_list->UE_template[CC_idP][UE_id].phr_info_configured=1;
      }

      payload_ptr+=sizeof(POWER_HEADROOM_CMD);
      break;

    case CRNTI:
138
      UE_id = find_UE_id(enb_mod_idP,(((uint16_t)payload_ptr[0])<<8) + payload_ptr[1]);
139
      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);
Florian Kaltenberger's avatar
Florian Kaltenberger committed
140
141
142
143
144
145
146
147
      if (UE_id!=-1) {
	UE_list->UE_sched_ctrl[UE_id].ul_inactivity_timer=0;
	UE_list->UE_sched_ctrl[UE_id].ul_failure_timer=0;
	if (UE_list->UE_sched_ctrl[UE_id].ul_out_of_sync > 0) {
	  UE_list->UE_sched_ctrl[UE_id].ul_out_of_sync=0;
	  mac_eNB_rrc_ul_in_sync(enb_mod_idP,CC_idP,frameP,subframeP,(((uint16_t)payload_ptr[0])<<8) + payload_ptr[1]);
	}
      }
148
      crnti_rx=1;
roux's avatar
roux committed
149
      payload_ptr+=2;
150

roux's avatar
roux committed
151
      if (msg3_flagP != NULL) {
152
	*msg3_flagP = 0;
roux's avatar
roux committed
153
      }
154
155
156
157
      break;

    case TRUNCATED_BSR:
    case SHORT_BSR: {
158
159
160
161
162
163
      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);

164
165
166
      if (crnti_rx==1)
	LOG_I(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);
167
      if (UE_id  != -1) {
168

169
170
        UE_list->UE_template[CC_idP][UE_id].bsr_info[lcgid] = (payload_ptr[0] & 0x3f);

171
        if (UE_list->UE_template[CC_idP][UE_id].ul_buffer_creation_time[lcgid] == 0 ) {
172
          UE_list->UE_template[CC_idP][UE_id].ul_buffer_creation_time[lcgid]=frameP;
173
        }
174
      }
175
      else {
176

177
      }
178
      payload_ptr += 1;//sizeof(SHORT_BSR); // fixme
knopp's avatar
   
knopp committed
179
    }
180
    break;
gauthier's avatar
   
gauthier committed
181

182
183
184
185
186
187
188
189
    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);
190
        LOG_D(MAC, "[eNB %d] CC_id %d MAC CE_LCID %d: Received long BSR LCGID0 = %u LCGID1 = "
191
192
193
194
195
196
197
198
199
              "%u LCGID2 = %u LCGID3 = %u\n",
              enb_mod_idP, CC_idP,
              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]);
      if (crnti_rx==1)
        LOG_I(MAC, "[eNB %d] CC_id %d MAC CE_LCID %d: Received long BSR LCGID0 = %u LCGID1 = "
200
              "%u LCGID2 = %u LCGID3 = %u\n",
201
              enb_mod_idP, CC_idP,
202
203
204
205
206
207
              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]);

208
        if (UE_list->UE_template[CC_idP][UE_id].bsr_info[LCGID0] == 0 ) {
209
          UE_list->UE_template[CC_idP][UE_id].ul_buffer_creation_time[LCGID0]=0;
210
        } else if (UE_list->UE_template[CC_idP][UE_id].ul_buffer_creation_time[LCGID0] == 0) {
211
          UE_list->UE_template[CC_idP][UE_id].ul_buffer_creation_time[LCGID0]=frameP;
212
        }
213

214
        if (UE_list->UE_template[CC_idP][UE_id].bsr_info[LCGID1] == 0 ) {
215
          UE_list->UE_template[CC_idP][UE_id].ul_buffer_creation_time[LCGID1]=0;
216
        } else if (UE_list->UE_template[CC_idP][UE_id].ul_buffer_creation_time[LCGID1] == 0) {
217
          UE_list->UE_template[CC_idP][UE_id].ul_buffer_creation_time[LCGID1]=frameP;
218
        }
219

220
        if (UE_list->UE_template[CC_idP][UE_id].bsr_info[LCGID2] == 0 ) {
221
          UE_list->UE_template[CC_idP][UE_id].ul_buffer_creation_time[LCGID2]=0;
222
        } else if (UE_list->UE_template[CC_idP][UE_id].ul_buffer_creation_time[LCGID2] == 0) {
223
          UE_list->UE_template[CC_idP][UE_id].ul_buffer_creation_time[LCGID2]=frameP;
224
        }
225

226
        if (UE_list->UE_template[CC_idP][UE_id].bsr_info[LCGID3] == 0 ) {
227
          UE_list->UE_template[CC_idP][UE_id].ul_buffer_creation_time[LCGID3]= 0;
228
        } else if (UE_list->UE_template[CC_idP][UE_id].ul_buffer_creation_time[LCGID3] == 0) {
229
230
          UE_list->UE_template[CC_idP][UE_id].ul_buffer_creation_time[LCGID3]=frameP;

231
        }
232
233
234
235
236
237
      }

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

    default:
238
      LOG_E(MAC, "[eNB %d] CC_id %d Received unknown MAC header (0x%02x)\n", enb_mod_idP, CC_idP, rx_ces[i]);
239
240
241
242
243
244
245
246
247
      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 :
248
249
      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,
250
251
252
            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++) {
253
        LOG_D(MAC,"[eNB %d][RAPROC] CC_id %d Checking proc %d : rnti (%x, %x), active %d\n",
254
              enb_mod_idP, CC_idP, ii,
255
256
              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
257

258
259
        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
260

261
          //payload_ptr = parse_ulsch_header(msg3,&num_ce,&num_sdu,rx_ces,rx_lcids,rx_lengths,msg3_len);
gauthier's avatar
   
gauthier committed
262

263
264
          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
265
            LOG_I(MAC,"[eNB %d][RAPROC] CC_id %d Frame %d CCCH: Received Msg3: length %d, offset %d\n",
266
                  enb_mod_idP,CC_idP,frameP,rx_lengths[i],payload_ptr-sduP);
gauthier's avatar
   
gauthier committed
267

268
            if ((UE_id=add_new_ue(enb_mod_idP,CC_idP,eNB->common_channels[CC_idP].RA_template[ii].rnti,harq_pidP)) == -1 ) {
269
              mac_xface->macphy_exit("[MAC][eNB] Max user count reached\n");
kaltenbe's avatar
kaltenbe committed
270
	      // kill RA procedure
271
            } else
272
273
              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);
274
          } else {
knopp's avatar
knopp committed
275
            LOG_I(MAC,"[eNB %d][RAPROC] CC_id %d Frame %d CCCH: Received Msg3 from already registered UE %d: length %d, offset %d\n",
276
                  enb_mod_idP,CC_idP,frameP,UE_id,rx_lengths[i],payload_ptr-sduP);
kaltenbe's avatar
kaltenbe committed
277
	    // kill RA procedure
278
          }
gauthier's avatar
   
gauthier committed
279

280
          if (Is_rrc_registered == 1)
281
282
            mac_rrc_data_ind(
              enb_mod_idP,
283
              CC_idP,
gauthier's avatar
gauthier committed
284
              frameP,subframeP,
285
286
287
              rntiP,
              CCCH,
              (uint8_t*)payload_ptr,
288
              rx_lengths[i],
289
290
291
              ENB_FLAG_YES,
              enb_mod_idP,
              0);
gauthier's avatar
   
gauthier committed
292
293


294
295
296
          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
297

298
299
          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
300

301
302
        } // if process is active
      } // loop on RA processes
gauthier's avatar
   
gauthier committed
303

304
      break;
gauthier's avatar
   
gauthier committed
305

306
307
308
    case  DCCH :
    case DCCH1 :
      //      if(eNB_mac_inst[module_idP][CC_idP].Dcch_lchan[UE_id].Active==1){
gauthier's avatar
   
gauthier committed
309

knopp's avatar
   
knopp committed
310
#if defined(ENABLE_MAC_PAYLOAD_DEBUG)
311
312
      LOG_T(MAC,"offset: %d\n",(unsigned char)((unsigned char*)payload_ptr-sduP));

313
      for (j=0; j<32; j++) {
314
        LOG_T(MAC,"%x ",payload_ptr[j]);
315
      }
316
317

      LOG_T(MAC,"\n");
knopp's avatar
   
knopp committed
318
#endif
gauthier's avatar
   
gauthier committed
319

roux's avatar
roux committed
320
321
322
323
324
325
326
      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(
327
328
329
330
331
332
333
334
335
336
337
			   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
338
339
340
341
          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 */
342
343
344
345
346
347

      //      }
      break;

    case DTCH: // default DRB
      //      if(eNB_mac_inst[module_idP][CC_idP].Dcch_lchan[UE_id].Active==1){
gauthier's avatar
   
gauthier committed
348

knopp's avatar
   
knopp committed
349
#if defined(ENABLE_MAC_PAYLOAD_DEBUG)
350
      LOG_T(MAC,"offset: %d\n",(unsigned char)((unsigned char*)payload_ptr-sduP));
gauthier's avatar
   
gauthier committed
351

352
      for (j=0; j<32; j++) {
353
        LOG_T(MAC,"%x ",payload_ptr[j]);
354
      }
gauthier's avatar
   
gauthier committed
355

356
357
358
      LOG_T(MAC,"\n");
#endif

359
360
      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]);
361

roux's avatar
roux committed
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
      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 */
380
381
382
383
384

      //      }
      break;

    default :  //if (rx_lcids[i] >= DTCH) {
roux's avatar
roux committed
385
386
      if (UE_id != -1)
        UE_list->eNB_UE_stats[CC_idP][UE_id].num_errors_rx+=1;
387
388
      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);
389
      break;
knopp's avatar
   
knopp committed
390
    }
391
392
393
394
395
396

    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
397
398
    if (UE_id != -1)
      UE_list->eNB_UE_stats[CC_idP][UE_id].total_num_errors_rx+=1;
399
400
401

    if (msg3_flagP != NULL) {
      if( *msg3_flagP == 1 ) {
402
        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);
403
404
        *msg3_flagP=0;
      }
405
    }
406
  } else {
roux's avatar
roux committed
407
408
409
410
411
    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;
    }
412
413
  }

gauthier's avatar
gauthier committed
414
  VCD_SIGNAL_DUMPER_DUMP_FUNCTION_BY_NAME(VCD_SIGNAL_DUMPER_FUNCTIONS_RX_SDU,0);
415
  stop_meas(&eNB->rx_ulsch_sdu);
knopp's avatar
   
knopp committed
416
417
418
}


419
420
uint32_t bytes_to_bsr_index(int32_t nbytes)
{
421

422
  uint32_t i=0;
423

424
  if (nbytes<0) {
425
    return(0);
426
  }
427

428
429
430
431
432
433
  while ((i<BSR_TABLE_SIZE)&&
         (BSR_TABLE[i]<=nbytes)) {
    i++;
  }

  return(i-1);
434
435
}

436
void adjust_bsr_info(int buffer_occupancy,
gauthier's avatar
   
gauthier committed
437
                     uint16_t TBS,
438
439
440
441
442
443
444
445
446
447
448
449
450
                     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
451
        UE_template->bsr_info[LCGID1] = 0;
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470

        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);
471
    }
472
473
474
475
476
477
  } 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;
  }
478
479
480


}
481

482
483
void add_ue_ulsch_info(module_id_t module_idP, int CC_id, int UE_id, sub_frame_t subframeP, UE_ULSCH_STATUS status)
{
484

485
486
487
  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;
488

489
  eNB_ulsch_info[module_idP][CC_id][UE_id].serving_num++;
490
491
492

}

knopp's avatar
   
knopp committed
493
494
495
// This seems not to be used anymore
/*
int schedule_next_ulue(module_id_t module_idP, int UE_id, sub_frame_t subframeP){
496

knopp's avatar
   
knopp committed
497
  int next_ue;
498
499
500

  // first phase: scheduling for ACK
  switch (subframeP) {
knopp's avatar
   
knopp committed
501
    // scheduling for subframeP 2: for scheduled user during subframeP 5 and 6
502
  case 8:
knopp's avatar
   
knopp committed
503
    if  ((eNB_dlsch_info[module_idP][UE_id].status == S_DL_SCHEDULED) &&
504
   (eNB_dlsch_info[module_idP][UE_id].subframe == 5 || eNB_dlsch_info[module_idP][UE_id].subframe == 6)){
knopp's avatar
   
knopp committed
505
506
507
      // set the downlink status
      eNB_dlsch_info[module_idP][UE_id].status = S_DL_BUFFERED;
      return UE_id;
508
509
510
511
    }
    break;
    // scheduling for subframeP 3: for scheduled user during subframeP 7 and 8
  case 9:
knopp's avatar
   
knopp committed
512
    if  ((eNB_dlsch_info[module_idP][UE_id].status == S_DL_SCHEDULED) &&
513
   (eNB_dlsch_info[module_idP][UE_id].subframe == 7 || eNB_dlsch_info[module_idP][UE_id].subframe == 8)){
knopp's avatar
   
knopp committed
514
515
      eNB_dlsch_info[module_idP][UE_id].status = S_DL_BUFFERED;
      return UE_id;
516
517
518
519
    }
    break;
    // scheduling UL subframeP 4: for scheduled user during subframeP 9 and 0
  case 0 :
knopp's avatar
   
knopp committed
520
    if  ((eNB_dlsch_info[module_idP][UE_id].status == S_DL_SCHEDULED) &&
521
   (eNB_dlsch_info[module_idP][UE_id].subframe == 9 || eNB_dlsch_info[module_idP][UE_id].subframe == 0)){
knopp's avatar
   
knopp committed
522
523
      eNB_dlsch_info[module_idP][UE_id].status = S_DL_BUFFERED;
      return UE_id;
524
525
526
527
528
529
530
531
532
    }
    break;
  default:
    break;
  }

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

knopp's avatar
   
knopp committed
533
534
535
536
537
    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;
    }
538
539
  }
  for (next_ue=0; next_ue <NUMBER_OF_UE_MAX; next_ue++ ){
knopp's avatar
   
knopp committed
540
541
    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;
542
543
544
545
546
  }
  next_ue = 0;
  return next_ue;

}
gauthier's avatar
   
gauthier committed
547
 */
548
549
550
551
552
553





unsigned char *parse_ulsch_header(unsigned char *mac_header,
gauthier's avatar
   
gauthier committed
554
555
556
557
558
                                  unsigned char *num_ce,
                                  unsigned char *num_sdu,
                                  unsigned char *rx_ces,
                                  unsigned char *rx_lcids,
                                  unsigned short *rx_lengths,
559
560
561
562
563
564
565
566
567
                                  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) {

568
    if (((SCH_SUBHEADER_FIXED*)mac_header_ptr)->E == 0) {
569
      not_done = 0;
570
    }
571
572
573
574
575
576
577
578

    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;

579
        for (num_sdu_cnt=0; num_sdu_cnt < num_sdus ; num_sdu_cnt++) {
580
          length -= rx_lengths[num_sdu_cnt];
581
        }
582
583
584
585
586
587
588
      } 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
589
        }
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
      }

      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++;

605
        if (lcid==LONG_BSR) {
606
          ce_len+=3;
607
        } else if (lcid==CRNTI) {
608
          ce_len+=2;
609
        } else if ((lcid==POWER_HEADROOM) || (lcid==TRUNCATED_BSR)|| (lcid== SHORT_BSR)) {
610
          ce_len++;
611
        } else {
612
613
          LOG_E(MAC,"unknown CE %d \n", lcid);
          mac_xface->macphy_exit("unknown CE");
gauthier's avatar
   
gauthier committed
614
        }
615
      }
knopp's avatar
   
knopp committed
616
    }
617
  }
618

619
620
621
622
  *num_ce = num_ces;
  *num_sdu = num_sdus;

  return(mac_header_ptr);
623
624
625
}


626
627
628
629
630
631
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
632
633


634
635
636
  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
637

638
  start_meas(&eNB->schedule_ulsch);
gauthier's avatar
   
gauthier committed
639
640


641
  for (CC_id=0; CC_id<MAX_NUM_CCs; CC_id++) {
gauthier's avatar
   
gauthier committed
642

643
    first_rb[CC_id] = 1;
gauthier's avatar
   
gauthier committed
644

645
646
647
648
    // 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
649

650
651
    // default function for default scheduling
    //
gauthier's avatar
   
gauthier committed
652

653
654
655
656
    // 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
657

658
659
660
661
    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
662
	//leave out first RB for PUCCH
663
664
665
        first_rb[CC_id]++;
        break;
      }
knopp's avatar
   
knopp committed
666
    }
knopp's avatar
knopp committed
667
668
669
670
671
672

    /*
    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),
    */

673
  }
674

675
  schedule_ulsch_rnti(module_idP, cooperation_flag, frameP, subframeP, sched_subframe,first_rb);
gauthier's avatar
   
gauthier committed
676

677
#ifdef CBA
678
  schedule_ulsch_cba_rnti(module_idP, cooperation_flag, frameP, subframeP, sched_subframe, first_rb);
679
680
#endif

knopp's avatar
   
knopp committed
681

682
  stop_meas(&eNB->schedule_ulsch);
gauthier's avatar
   
gauthier committed
683

684
685
686
687
688
689
690
691
692
}



void schedule_ulsch_rnti(module_id_t   module_idP,
                         unsigned char cooperation_flag,
                         frame_t       frameP,
                         sub_frame_t   subframeP,
                         unsigned char sched_subframe,
693
694
695
696
697
698
699
700
701
702
703
704
705
                         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
706
  uint16_t                TBS = 0;
707
708
709
710
711
  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;

712
  int n,CC_id = 0;
713
714
715
716
717
718
719
720
721
722
723
724
725
  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,
726
                                aggregation);
727
728
729
730
731
732
733

  //  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
734
    if (UE_list->UE_template[UE_PCCID(module_idP,UE_id)][UE_id].configured==FALSE) {
735
      continue;
736
    }
737
738
739

    rnti = UE_RNTI(module_idP,UE_id);

740
    if (rnti==NOT_A_RNTI) {
741
      LOG_W(MAC,"[eNB %d] frame %d subfarme %d, UE %d: no RNTI \n", module_idP,frameP,subframeP,UE_id);
742
743
      continue;
    }
gauthier's avatar
   
gauthier committed
744

745
746
747
748
749
750
    // 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
751

752
753
754
755
756
      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");
      }

757
758
      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);
759
760
        continue; // break;
      }
gauthier's avatar
   
gauthier committed
761

762
      //      printf("UE %d/%x is feasible, mode %s\n",UE_id,rnti,mode_string[eNB_UE_stats->mode]);
gauthier's avatar
   
gauthier committed
763

764
      if (eNB_UE_stats->mode == PUSCH) { // ue has a ulsch channel
gauthier's avatar
   
gauthier committed
765

766
767
        DCI_pdu = &eNB->common_channels[CC_id].DCI_pdu;
        UE_template = &UE_list->UE_template[CC_id][UE_id];
gauthier's avatar
   
gauthier committed
768

769
        if (mac_xface->get_ue_active_harq_pid(module_idP,CC_id,rnti,frameP,subframeP,&harq_pid,&round,1) == -1 ) {
770
          LOG_W(MAC,"[eNB %d] Scheduler Frame %d, subframeP %d: candidate harq_pid from PHY for UE %d CC %d RNTI %x\n",
771
772
773
774
775
                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
776
777
          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
778

779
#undef EXMIMO_IOT
780
#ifndef EXMIMO_IOT
781

782
        if (((UE_is_to_be_scheduled(module_idP,CC_id,UE_id)>0)) || (round>0))// || ((frameP%10)==0))
783
          // 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
784
#else
785
	  if (round==0)  // always schedule
786
#endif
787
        {
Florian Kaltenberger's avatar
Florian Kaltenberger committed
788
789
790
791
	  LOG_D(MAC,"[eNB %d][PUSCH] Frame %d subframe %d Scheduling UE %d/%x in round %d(SR %d,UL_inactivity timer %d,UL_failure timer %d)\n",
		module_idP,frameP,subframeP,UE_id,rnti,round,UE_template->ul_SR,
		UE_list->UE_sched_ctrl[UE_id].ul_inactivity_timer,
		UE_list->UE_sched_ctrl[UE_id].ul_failure_timer);
792
793
794
          // reset the scheduling request
          UE_template->ul_SR = 0;
          aggregation = process_ue_cqi(module_idP,UE_id); // =2 by default!!
795
          status = mac_eNB_get_rrc_status(module_idP,rnti);
796
797
798
799
800
801
802
          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
803
          target_rx_power = mac_xface->get_target_pusch_rx_power(module_idP,CC_id);
804
805

          // this assumes accumulated tpc
kaltenbe's avatar
kaltenbe committed
806
	  // make sure that we are only sending a tpc update once a frame, otherwise the control loop will freak out
807
808
809
810
	  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
811
812
	    UE_template->pusch_tpc_tx_frame=frameP;
	    UE_template->pusch_tpc_tx_subframe=subframeP;
813
814
815
816
817
818
            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++;
819
            } else {
820
              tpc = 1; //0
821
822
            }
          } else {
823
            tpc = 1; //0
824
          }
825

826
	  if (tpc!=1) {
navid's avatar
navid committed
827
	    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",
828
829
830
831
		  module_idP,frameP,subframeP,harq_pid,tpc,
		  tpc_accumulated,normalized_rx_power,target_rx_power);
	  }

832
833
834
835
836
          // new transmission
          if (round==0) {

            ndi = 1-UE_template->oldNDI_UL[harq_pid];
            UE_template->oldNDI_UL[harq_pid]=ndi;
837
838
839
	    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;
840
841
            mcs = cmin (UE_template->pre_assigned_mcs_ul, openair_daq_vars.target_ue_ul_mcs); // adjust, based on user-defined MCS

842
            if (UE_template->pre_allocated_rb_table_index_ul >=0) {
843
              rb_table_index=UE_template->pre_allocated_rb_table_index_ul;
844
            } else {
845
	      mcs=cmin (10, openair_daq_vars.target_ue_ul_mcs);
846
              rb_table_index=5; // for PHR
847
	    }
848
849
850
851
852
853
854
855
856
857

            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]);
858
859
	    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;
860
861
862
863
864
865
866
867
868
            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];

869
870
            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,
871
872
873
874
875
876
877
                  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);

878
879
880
881
882
883
884
885
886
887
888
889
890
891
892
893
894
895
896
897
898
899
900
901
902
903
904
905
906
907
908
909
910
911
912
913
914
915
916
917
918
919
920
921
922
923
924
925
926
927
928
929
930
931
932
933
934
935
936
937
938
939
940
941
942
943
944
945
946
947
948
949
950
951
952
953
954
955
956
957
958
959
960
961
962
963
964
965
966
967
968
969
970
971
972
973
974
975
976
977
978
979
980
981
982
983
984
985
986
987
988
989
990
991
992
993
994
995
996
997
998
999
1000
	    // Cyclic shift for DM RS
	    if(cooperation_flag == 2) {
	      if(UE_id == 1) { // For Distriibuted Alamouti, cyclic shift applied to 2nd UE
		cshift = 1;
	      } else {
		cshift = 0;
	      }
	    } else {
	      cshift = 0;// values from 0 to 7 can be used for mapping the cyclic shift (36.211 , Table 5.5.2.1.1-1)
	    }
	    
	    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_20MHz_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;
For faster browsing, not all history is shown. View entire blame