ue_procedures.c 73.3 KB
Newer Older
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27
/*******************************************************************************

  Eurecom OpenAirInterface
  Copyright(c) 1999 - 2010 Eurecom

  This program is free software; you can redistribute it and/or modify it
  under the terms and conditions of the GNU General Public License,
  version 2, as published by the Free Software Foundation.

  This program is distributed in the hope 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.

  You should have received a copy of the GNU General Public License along with
  this program; if not, write to the Free Software Foundation, Inc.,
  51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.

  The full GNU General Public License is included in this distribution in
  the file called "COPYING".

  Contact Information
  Openair Admin: openair_admin@eurecom.fr
  Openair Tech : openair_tech@eurecom.fr
  Forums       : http://forums.eurecom.fsr/openairinterface
  Address      : Eurecom, 2229, route des crêtes, 06560 Valbonne Sophia Antipolis, France

28
 *******************************************************************************/
29
/*! \file ue_procedures.c
30 31 32 33 34 35
 * \brief procedures related to UE
 * \author Raymond Knopp, Navid Nikaein
 * \date 2011
 * \version 0.5
 * \email: navid.nikaein@eurecom.fr
 * @ingroup _mac
36

37
 */
38

39 40 41 42
#ifdef EXMIMO
#include <pthread.h>
#endif

43 44 45
#include "extern.h"
#include "defs.h"
#ifdef PHY_EMUL
Cedric Roux's avatar
Cedric Roux committed
46
# include "SIMULATION/PHY_EMULATION/impl_defs.h"
47
#else
Cedric Roux's avatar
Cedric Roux committed
48 49
# include "SCHED/defs.h"
# include "PHY/impl_defs_top.h"
50 51 52 53
#endif
#include "PHY_INTERFACE/defs.h"
#include "PHY_INTERFACE/extern.h"
#include "COMMON/mac_rrc_primitives.h"
Cedric Roux's avatar
Cedric Roux committed
54 55

#include "RRC/L2_INTERFACE/openair_rrc_L2_interface.h"
56 57 58
#include "RRC/LITE/extern.h"
#include "UTIL/LOG/log.h"
#include "UTIL/LOG/vcd_signal_dumper.h"
Cedric Roux's avatar
Cedric Roux committed
59
#include "UTIL/OPT/opt.h"
60 61
#include "OCG.h"
#include "OCG_extern.h"
Cedric Roux's avatar
Cedric Roux committed
62

63
#ifdef PHY_EMUL
Cedric Roux's avatar
Cedric Roux committed
64
# include "SIMULATION/simulation_defs.h"
65
#endif
66
#include "pdcp.h"
67

68 69 70 71
#if defined(ENABLE_ITTI)
# include "intertask_interface.h"
#endif

72 73
#include "assertions.h"

74 75 76 77 78 79 80
#define DEBUG_HEADER_PARSING 1
#define ENABLE_MAC_PAYLOAD_DEBUG

/*
#ifndef USER_MODE
#define msg debug_msg
#endif
81
 */
82 83 84 85 86 87 88 89 90 91 92 93
mapping BSR_names[] = {
    {"NONE", 0},
    {"SHORT BSR", 1},
    {"TRUNCATED BSR", 2},
    {"LONG BSR", 3},
    {"PADDING BSR", 4},
    {NULL, -1}
};

extern inline unsigned int taus(void);


94
void ue_init_mac(module_id_t module_idP){
95
  int i;
96

97
  // default values as deined in 36.331 sec 9.2.2
98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119
  LOG_I(MAC,"[UE%d] Applying default macMainConfig\n",module_idP);

  //UE_mac_inst[module_idP].scheduling_info.macConfig=NULL;
  UE_mac_inst[module_idP].scheduling_info.retxBSR_Timer= MAC_MainConfig__ul_SCH_Config__retxBSR_Timer_sf2560;
  UE_mac_inst[module_idP].scheduling_info.periodicBSR_Timer=MAC_MainConfig__ul_SCH_Config__periodicBSR_Timer_infinity;
  UE_mac_inst[module_idP].scheduling_info.periodicPHR_Timer = MAC_MainConfig__phr_Config__setup__periodicPHR_Timer_sf20;
  UE_mac_inst[module_idP].scheduling_info.prohibitPHR_Timer = MAC_MainConfig__phr_Config__setup__prohibitPHR_Timer_sf20;
  UE_mac_inst[module_idP].scheduling_info.PathlossChange_db = MAC_MainConfig__phr_Config__setup__dl_PathlossChange_dB1;
  UE_mac_inst[module_idP].PHR_state = MAC_MainConfig__phr_Config_PR_setup;
  UE_mac_inst[module_idP].scheduling_info.SR_COUNTER=0;
  UE_mac_inst[module_idP].scheduling_info.sr_ProhibitTimer=0;
  UE_mac_inst[module_idP].scheduling_info.sr_ProhibitTimer_Running=0;
  UE_mac_inst[module_idP].scheduling_info.maxHARQ_Tx=MAC_MainConfig__ul_SCH_Config__maxHARQ_Tx_n5;
  UE_mac_inst[module_idP].scheduling_info.ttiBundling=0;
  UE_mac_inst[module_idP].scheduling_info.drx_config=NULL;
  UE_mac_inst[module_idP].scheduling_info.phr_config=NULL;
  UE_mac_inst[module_idP].scheduling_info.periodicBSR_SF  =  get_sf_periodicBSRTimer(UE_mac_inst[module_idP].scheduling_info.periodicBSR_Timer);
  UE_mac_inst[module_idP].scheduling_info.retxBSR_SF     =  get_sf_retxBSRTimer(UE_mac_inst[module_idP].scheduling_info.retxBSR_Timer);
  UE_mac_inst[module_idP].scheduling_info.periodicPHR_SF =  get_sf_perioidicPHR_Timer(UE_mac_inst[module_idP].scheduling_info.periodicPHR_Timer);
  UE_mac_inst[module_idP].scheduling_info.prohibitPHR_SF =  get_sf_prohibitPHR_Timer(UE_mac_inst[module_idP].scheduling_info.prohibitPHR_Timer);
  UE_mac_inst[module_idP].scheduling_info.PathlossChange_db =  get_db_dl_PathlossChange(UE_mac_inst[module_idP].scheduling_info.PathlossChange);

120
  for (i=0; i < MAX_NUM_LCID; i++){
121 122 123 124 125 126 127 128
      LOG_D(MAC,"[UE%d] Applying default logical channel config for LCGID %d\n",module_idP,i);
      UE_mac_inst[module_idP].scheduling_info.Bj[i]=-1;
      UE_mac_inst[module_idP].scheduling_info.bucket_size[i]=-1;
      if (i < DTCH) // initilize all control channels lcgid to 0
        UE_mac_inst[module_idP].scheduling_info.LCGID[i]=0;
      else // initialize all the data channels lcgid to 1
        UE_mac_inst[module_idP].scheduling_info.LCGID[i]=1;
      UE_mac_inst[module_idP].scheduling_info.LCID_status[i]=0;
129 130 131 132
  }
}

unsigned char *parse_header(unsigned char *mac_header,
133 134 135 136 137 138
    unsigned char *num_ce,
    unsigned char *num_sdu,
    unsigned char *rx_ces,
    unsigned char *rx_lcids,
    unsigned short *rx_lengths,
    unsigned short tb_length) {
139 140 141 142 143 144 145

  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) {

146 147 148
      if (((SCH_SUBHEADER_FIXED *)mac_header_ptr)->E == 0) {
          //      printf("E=0\n");
          not_done = 0;
149
      }
150 151 152 153 154 155 156 157 158 159 160 161 162
      lcid = ((SCH_SUBHEADER_FIXED *)mac_header_ptr)->LCID;
      if (lcid < UE_CONT_RES) {
          //printf("[MAC][UE] header %x.%x.%x\n",mac_header_ptr[0],mac_header_ptr[1],mac_header_ptr[2]);
          if (not_done==0) {// last MAC SDU, length is implicit
              mac_header_ptr++;
              length = tb_length-(mac_header_ptr-mac_header)-ce_len;
              for (num_sdu_cnt=0; num_sdu_cnt < num_sdus ; num_sdu_cnt++)
                length -= rx_lengths[num_sdu_cnt];
          }
          else {
              if (((SCH_SUBHEADER_LONG *)mac_header_ptr)->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;
163
#ifdef DEBUG_HEADER_PARSING
164
                  LOG_D(MAC,"[UE] parse long sdu, size %x \n",length);
165
#endif
166 167 168 169 170 171

              }  else {	//if (((SCH_SUBHEADER_SHORT *)mac_header_ptr)->F == 0) {
                  length = ((SCH_SUBHEADER_SHORT *)mac_header_ptr)->L;
                  mac_header_ptr += 2;
              }
          }
172
#ifdef DEBUG_HEADER_PARSING
173 174
          LOG_D(MAC,"[UE] sdu %d lcid %d length %d (offset now %d)\n",
              num_sdus,lcid,length,mac_header_ptr-mac_header);
175
#endif
176 177 178
          rx_lcids[num_sdus] = lcid;
          rx_lengths[num_sdus] = length;
          num_sdus++;
179
      }
180 181 182 183 184 185 186 187 188 189 190 191 192
      else {  // This is a control element subheader
          if (lcid == SHORT_PADDING) {
              mac_header_ptr++;
          }
          else {
              rx_ces[num_ces] = lcid;
              num_ces++;
              mac_header_ptr ++;
              if (lcid==TIMING_ADV_CMD)
                ce_len++;
              else if (lcid==UE_CONT_RES)
                ce_len+=6;
          }
193
#ifdef DEBUG_HEADER_PARSING
194
          LOG_D(MAC,"[UE] ce %d lcid %d (offset now %d)\n",num_ces,lcid,mac_header_ptr-mac_header);
195
#endif
196
      }
197 198 199 200 201 202 203
  }
  *num_ce = num_ces;
  *num_sdu = num_sdus;

  return(mac_header_ptr);
}

204
uint32_t ue_get_SR(module_id_t module_idP,frame_t frameP,uint8_t eNB_id,uint16_t rnti, sub_frame_t subframe) {
205 206 207

  // no UL-SCH resources available for this tti && UE has a valid PUCCH resources for SR configuration for this tti
  //  int MGL=6;// measurement gap length in ms
208 209 210
  int MGRP       = 0; // measurement gap repetition period in ms
  int gapOffset  = -1;
  int T          = 0;
211

212
  DevCheck(module_idP < NB_UE_INST, module_idP, NB_UE_INST, 0);
213

214 215
  // determin the measurement gap
  LOG_D(MAC,"[UE %d][SR %x] Frame %d subframe %d PHY asks for SR (SR_COUNTER/dsr_TransMax %d/%d), SR_pending %d\n",
216
      module_idP,rnti,frameP,subframe,
217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232
      UE_mac_inst[module_idP].scheduling_info.SR_COUNTER,
      (1<<(2+UE_mac_inst[module_idP].physicalConfigDedicated->schedulingRequestConfig->choice.setup.dsr_TransMax)),
      UE_mac_inst[module_idP].scheduling_info.SR_pending);

  if (UE_mac_inst[module_idP].measGapConfig !=NULL){
      if (UE_mac_inst[module_idP].measGapConfig->choice.setup.gapOffset.present == MeasGapConfig__setup__gapOffset_PR_gp0){
          MGRP= 40;
          gapOffset= UE_mac_inst[module_idP].measGapConfig->choice.setup.gapOffset.choice.gp0;
      }else if (UE_mac_inst[module_idP].measGapConfig->choice.setup.gapOffset.present == MeasGapConfig__setup__gapOffset_PR_gp1){
          MGRP= 80;
          gapOffset= UE_mac_inst[module_idP].measGapConfig->choice.setup.gapOffset.choice.gp1;
      }else{
          LOG_W(MAC, "Measurement GAP offset is unknown\n");
      }
      T=MGRP/10;
      //check the measurement gap and sr prohibit timer
233
      if ((subframe ==  gapOffset %10) && ((frameP %T) == (floor(gapOffset/10)))
234 235 236 237
          && (UE_mac_inst[module_idP].scheduling_info.sr_ProhibitTimer_Running =0)){
          UE_mac_inst[module_idP].scheduling_info.SR_pending=1;
          return(0);
      }
238
  }
239 240 241 242 243 244 245 246 247 248 249 250
  if ((UE_mac_inst[module_idP].scheduling_info.SR_pending==1) &&
      (UE_mac_inst[module_idP].scheduling_info.SR_COUNTER <
          (1<<(2+UE_mac_inst[module_idP].physicalConfigDedicated->schedulingRequestConfig->choice.setup.dsr_TransMax)))
  ){
      UE_mac_inst[module_idP].scheduling_info.SR_COUNTER++;
      // start the sr-prohibittimer : rel 9 and above
      if (UE_mac_inst[module_idP].scheduling_info.sr_ProhibitTimer > 0) { // timer configured
          UE_mac_inst[module_idP].scheduling_info.sr_ProhibitTimer--;
          UE_mac_inst[module_idP].scheduling_info.sr_ProhibitTimer_Running=1;
      } else
        UE_mac_inst[module_idP].scheduling_info.sr_ProhibitTimer_Running=0;
      LOG_D(MAC,"[UE %d][SR %x] Frame %d subframe %d send SR_indication (SR_COUNTER/dsr_TransMax %d/%d), SR_pending %d\n",
251
          module_idP,rnti,frameP,subframe,
252 253 254 255 256 257 258
          UE_mac_inst[module_idP].scheduling_info.SR_COUNTER,
          (1<<(2+UE_mac_inst[module_idP].physicalConfigDedicated->schedulingRequestConfig->choice.setup.dsr_TransMax)),
          UE_mac_inst[module_idP].scheduling_info.SR_pending);

      //UE_mac_inst[module_idP].ul_active =1;

      return(1); //instruct phy to signal SR
259 260
  }
  else{
261 262 263 264 265 266
      // notify RRC to relase PUCCH/SRS
      // clear any configured dl/ul
      // initiate RA
      UE_mac_inst[module_idP].scheduling_info.SR_pending=0;
      UE_mac_inst[module_idP].scheduling_info.SR_COUNTER=0;
      return(0);
267 268 269
  }
}

270
void ue_send_sdu(module_id_t module_idP,frame_t frameP,uint8_t *sdu,uint16_t sdu_len,uint8_t eNB_index) {
271 272 273 274 275 276

  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];
  unsigned char *tx_sdu;

277
  start_meas(&UE_mac_inst[module_idP].rx_dlsch_sdu);
278 279 280 281 282 283
  vcd_signal_dumper_dump_function_by_name(VCD_SIGNAL_DUMPER_FUNCTIONS_UE_SEND_SDU, VCD_FUNCTION_IN);

  LOG_T(MAC,"sdu: %x.%x.%x\n",sdu[0],sdu[1],sdu[2]);

#if defined(USER_MODE) && defined(OAI_EMU)
  if (oai_emulation.info.opt_enabled) {
284 285
      trace_pdu(1, sdu, sdu_len, module_idP, 3, UE_mac_inst[module_idP].crnti,
          UE_mac_inst[module_idP].subframe, 0, 0);
286 287 288 289 290 291
  }
#endif

  payload_ptr = parse_header(sdu,&num_ce,&num_sdu,rx_ces,rx_lcids,rx_lengths,sdu_len);

#ifdef DEBUG_HEADER_PARSING
292
  LOG_D(MAC,"[UE %d] ue_send_sdu : Frame %d eNB_index %d : num_ce %d num_sdu %d\n",module_idP,
293
      frameP,eNB_index,num_ce,num_sdu);
294 295 296 297 298 299
#endif

#if defined(ENABLE_MAC_PAYLOAD_DEBUG)
  LOG_T(MAC,"[eNB %d] First 32 bytes of DLSCH : \n");
  for (i=0;i<32;i++)
    LOG_T(MAC,"%x.",sdu[i]);
300
  LOG_T(MAC,"\n");
301 302 303
#endif

  for (i=0;i<num_ce;i++) {
304
      //    printf("ce %d : %d\n",i,rx_ces[i]);
305 306 307
      switch (rx_ces[i]) {
      case UE_CONT_RES:

308
        LOG_I(MAC,"[UE %d][RAPROC] Frame %d : received contention resolution msg: %x.%x.%x.%x.%x.%x, Terminating RA procedure\n",
309
            module_idP,frameP,payload_ptr[0],payload_ptr[1],payload_ptr[2],payload_ptr[3],payload_ptr[4],payload_ptr[5]);
310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330
        if (UE_mac_inst[module_idP].RA_active == 1) {
            LOG_I(MAC,"[UE %d][RAPROC] Frame %d : Clearing RA_active flag\n");
            UE_mac_inst[module_idP].RA_active=0;
            // check if RA procedure has finished completely (no contention)
            tx_sdu = &UE_mac_inst[module_idP].CCCH_pdu.payload[3];
            //Note: 3 assumes sizeof(SCH_SUBHEADER_SHORT) + PADDING CE, which is when UL-Grant has TBS >= 9 (64 bits)
            // (other possibility is 1 for TBS=7 (SCH_SUBHEADER_FIXED), or 2 for TBS=8 (SCH_SUBHEADER_FIXED+PADDING or SCH_SUBHEADER_SHORT)
            for (i=0;i<6;i++)
              if (tx_sdu[i] != payload_ptr[i]) {
                  LOG_E(MAC,"[UE %d][RAPROC] Contention detected, RA failed\n",module_idP);
                  mac_xface->ra_failed(module_idP,eNB_index);
                  UE_mac_inst[module_idP].RA_contention_resolution_timer_active = 0;
                  vcd_signal_dumper_dump_function_by_name(VCD_SIGNAL_DUMPER_FUNCTIONS_UE_SEND_SDU, VCD_FUNCTION_OUT);
                  return;
              }
            LOG_I(MAC,"[UE %d][RAPROC] Frame %d : Clearing contention resolution timer\n");
            UE_mac_inst[module_idP].RA_contention_resolution_timer_active = 0;
            mac_xface->ra_succeeded(module_idP,eNB_index);
        }
        payload_ptr+=6;
        break;
331 332
      case TIMING_ADV_CMD:
#ifdef DEBUG_HEADER_PARSING
333
        LOG_D(MAC,"[UE] CE %d : UE Timing Advance : %d\n",i,payload_ptr[0]);
334
#endif
335 336 337
        //mac_xface->process_timing_advance(module_idP,payload_ptr[0]);
        payload_ptr++;
        break;
338 339
      case DRX_CMD:
#ifdef DEBUG_HEADER_PARSING
340
        LOG_D(MAC,"[UE] CE %d : UE DRX :",i);
341
#endif
342 343
        payload_ptr++;
        break;
344 345 346 347
      }
  }
  for (i=0;i<num_sdu;i++) {
#ifdef DEBUG_HEADER_PARSING
348
      LOG_D(MAC,"[UE] SDU %d : LCID %d, length %d\n",i,rx_lcids[i],rx_lengths[i]);
349
#endif
350 351
      if (rx_lcids[i] == CCCH) {

352
          LOG_D(MAC,"[UE %d] Frame %d : DLSCH -> DL-CCCH, RRC message (eNB %d, %d bytes)\n",module_idP,frameP, eNB_index, rx_lengths[i]);
353 354

#if defined(ENABLE_MAC_PAYLOAD_DEBUG)
355 356
          int j;
          for (j=0;j<rx_lengths[i];j++)
357
            LOG_T(MAC,"%x.",(uint8_t)payload_ptr[j]);
358
          LOG_T(MAC,"\n");
359
#endif
360
          mac_rrc_data_ind(module_idP,
361
              frameP,
362
              CCCH,
363
              (uint8_t *)payload_ptr,rx_lengths[i],0,eNB_index,0);
364

365 366
      }
      else if (rx_lcids[i] == DCCH) {
367
          LOG_D(MAC,"[UE %d] Frame %d : DLSCH -> DL-DCCH%d, RRC message (eNB %d, %d bytes)\n", module_idP, frameP, rx_lcids[i],eNB_index,rx_lengths[i]);
368 369
          mac_rlc_data_ind(eNB_index,
              module_idP,
370
              frameP,
Lionel Gauthier's avatar
Lionel Gauthier committed
371 372
              ENB_FLAG_NO,
              MBMS_FLAG_NO,
373 374 375 376 377 378 379
              DCCH,
              (char *)payload_ptr,
              rx_lengths[i],
              1,
              NULL);
      }
      else if (rx_lcids[i] == DCCH1) {
380
          LOG_D(MAC,"[UE %d] Frame %d : DLSCH -> DL-DCCH%d, RRC message (eNB %d, %d bytes)\n", module_idP, frameP, rx_lcids[i], eNB_index,rx_lengths[i]);
381 382
          mac_rlc_data_ind(eNB_index,
              module_idP,
383
              frameP,
Lionel Gauthier's avatar
Lionel Gauthier committed
384 385
              ENB_FLAG_NO,
              MBMS_FLAG_NO,
386 387 388 389 390 391 392
              DCCH1,
              (char *)payload_ptr,
              rx_lengths[i],
              1,
              NULL);
      }
      else if (rx_lcids[i] == DTCH) {
393
          LOG_D(MAC,"[UE %d] Frame %d : DLSCH -> DL-DTCH%d (eNB %d, %d bytes)\n", module_idP, frameP,rx_lcids[i], eNB_index,rx_lengths[i]);
394 395

#if defined(ENABLE_MAC_PAYLOAD_DEBUG)
396 397 398 399
          int j;
          for (j=0;j<rx_lengths[i];j++)
            LOG_T(MAC,"%x.",(unsigned char)payload_ptr[j]);
          LOG_T(MAC,"\n");
400 401
#endif

402 403
          mac_rlc_data_ind(eNB_index,
              module_idP,
404
              frameP,
Lionel Gauthier's avatar
Lionel Gauthier committed
405 406
              ENB_FLAG_NO,
              MBMS_FLAG_NO,
407 408 409 410 411 412 413
              DTCH,
              (char *)payload_ptr,
              rx_lengths[i],
              1,
              NULL);
      }
      payload_ptr+= rx_lengths[i];
414 415
  }
  vcd_signal_dumper_dump_function_by_name(VCD_SIGNAL_DUMPER_FUNCTIONS_UE_SEND_SDU, VCD_FUNCTION_OUT);
416
  stop_meas(&UE_mac_inst[module_idP].rx_dlsch_sdu);
417 418
}

419
void ue_decode_si(module_id_t module_idP,frame_t frameP, uint8_t eNB_index, void *pdu,uint16_t len) {
420

421
  start_meas(&UE_mac_inst[module_idP].rx_si);
422 423
  vcd_signal_dumper_dump_function_by_name(VCD_SIGNAL_DUMPER_FUNCTIONS_UE_DECODE_SI, VCD_FUNCTION_IN);

424
  LOG_D(MAC,"[UE %d] Frame %d Sending SI to RRC (LCID Id %d,len %d)\n",module_idP,frameP,BCCH,len);
425

426
  mac_rrc_data_ind(module_idP,
427
      frameP,
428
      BCCH,
429
      (uint8_t *)pdu,
430 431 432 433
      len,
      0,
      eNB_index,
      0);
434
  vcd_signal_dumper_dump_function_by_name(VCD_SIGNAL_DUMPER_FUNCTIONS_UE_DECODE_SI, VCD_FUNCTION_OUT);
435
  stop_meas(&UE_mac_inst[module_idP].rx_si);
436 437 438 439
}

#ifdef Rel10
unsigned char *parse_mch_header(unsigned char *mac_header,
440 441 442 443
    unsigned char *num_sdu,
    unsigned char *rx_lcids,
    unsigned short *rx_lengths,
    unsigned short tb_length) {
444 445 446 447 448
  unsigned char not_done=1, num_sdus=0, lcid, i;
  unsigned char *mac_header_ptr = mac_header;
  unsigned short length;

  while (not_done == 1) {
449 450
      if (((SCH_SUBHEADER_FIXED *)mac_header_ptr)->E == 0) {
          not_done = 0;
451
      }
452 453 454 455 456 457 458 459 460 461 462 463 464 465 466 467 468 469 470 471 472 473 474 475 476 477
      lcid = ((SCH_SUBHEADER_FIXED *)mac_header_ptr)->LCID;
      if (lcid < SHORT_PADDING) {// subheader for MSI, MCCH or MTCH
          if (not_done == 0) { // last MAC SDU, length is implicit
              mac_header_ptr++;
              length = tb_length- (mac_header_ptr - mac_header);
              for (i=0; i<num_sdus; i++)
                length -= rx_lengths[i];
          }
          else { // not the last MAC SDU
              if ( ((SCH_SUBHEADER_LONG *)mac_header_ptr)->F == 1) {// subheader has length of 3octets
                  //	  length = ((SCH_SUBHEADER_LONG *)mac_header_ptr)->L;
                  length = ((((SCH_SUBHEADER_LONG *)mac_header_ptr)->L_MSB & 0x7f ) << 8 ) | (((SCH_SUBHEADER_LONG *)mac_header_ptr)->L_LSB & 0xff);
                  mac_header_ptr += 3;
              }
              else {// subheader has length of 2octets
                  length = ((SCH_SUBHEADER_SHORT *)mac_header_ptr)->L;
                  mac_header_ptr += 2;
              }
          }
          rx_lcids[num_sdus] = lcid;
          rx_lengths[num_sdus] = length;
          num_sdus++;
      }
      else {// subheader for padding
          //     if (lcid == SHORT_PADDING)
          mac_header_ptr++;
478 479 480 481 482 483 484
      }
  }
  *num_sdu = num_sdus;
  return(mac_header_ptr);
}

// this function is for sending mch_sdu from phy to mac
485
void ue_send_mch_sdu(module_id_t module_idP, frame_t frameP, uint8_t *sdu, uint16_t sdu_len, uint8_t eNB_index, uint8_t sync_area) {
486 487

  unsigned char num_sdu, i, *payload_ptr;
488
  unsigned char rx_lcids[NB_RB_MAX];
489 490
  unsigned short rx_lengths[NB_RB_MAX];

491
  start_meas(&UE_mac_inst[module_idP].rx_mch_sdu);
492
  vcd_signal_dumper_dump_function_by_name(VCD_SIGNAL_DUMPER_FUNCTIONS_UE_SEND_MCH_SDU, VCD_FUNCTION_IN);
493

494
  LOG_D(MAC,"[UE %d] Frame %d : process the mch PDU for sync area %d \n",module_idP,frameP, sync_area);
495 496
  LOG_D(MAC,"[UE %d] sdu: %x.%x\n", module_idP,sdu[0], sdu[1]);
  LOG_D(MAC,"[UE %d] parse_mch_header, demultiplex\n",module_idP);
497 498

  payload_ptr = parse_mch_header(sdu, &num_sdu, rx_lcids, rx_lengths, sdu_len);
499
  LOG_D(MAC,"[UE %d] parse_mch_header, found %d sdus\n",module_idP,num_sdu);
500 501

  for (i=0; i<num_sdu; i++) {
502 503
      if (rx_lcids[i] == MCH_SCHDL_INFO) {
          if (UE_mac_inst[module_idP].mcch_status==1) {
504
              LOG_I(MAC,"[UE %d] Frame %d : MCH->MSI for sync area %d (eNB %d, %d bytes)\n",module_idP,frameP, sync_area, eNB_index, rx_lengths[i]);
505 506 507 508 509
              // ??store necessary scheduling info to ue_mac_inst in order to
              // calculate exact position of interested service (for the complex case has >1 mtch)
              // set msi_status to 1
              UE_mac_inst[module_idP].msi_status = 1;
          }
510
      }
511
      else if (rx_lcids[i] == MCCH_LCHANID) {
512
          LOG_I(MAC,"[UE %d] Frame %d : SDU %d MCH->MCCH for sync area %d (eNB %d, %d bytes)\n",module_idP,frameP, i, sync_area, eNB_index, rx_lengths[i]);
513
          mac_rrc_data_ind(module_idP,
514
              frameP,
515 516
              MCCH,
              payload_ptr, rx_lengths[i], 0, eNB_index, sync_area);
517
      }
518 519
      else if (rx_lcids[i] == MTCH) {
          if (UE_mac_inst[module_idP].msi_status==1) {
520
              LOG_I(MAC,"[UE %d] Frame %d : MCH->MTCH for sync area %d (eNB %d, %d bytes)\n",module_idP,frameP, sync_area, eNB_index, rx_lengths[i]);
521 522

              mac_rlc_data_ind(
523
                  0,
524
                  module_idP,
525
                  frameP,
Lionel Gauthier's avatar
Lionel Gauthier committed
526 527
                  ENB_FLAG_NO,
                  MBMS_FLAG_YES,
528
                  MTCH, /*+ (maxDRB + 3),*/
529 530 531 532 533 534 535
                  (char *)payload_ptr,
                  rx_lengths[i],
                  1,
                  NULL);

          }
      } else {
536 537 538 539 540 541
          LOG_W(MAC,"[UE %d] Frame %d : unknown sdu %d rx_lcids[%d]=%d mcch status %d eNB %d \n",
              module_idP,
              frameP,
              rx_lengths[i],
              i,
              rx_lcids[i],
542 543 544 545
              UE_mac_inst[module_idP].mcch_status, eNB_index);
      }

      payload_ptr += rx_lengths[i];
546 547
  }

548
  vcd_signal_dumper_dump_function_by_name(VCD_SIGNAL_DUMPER_FUNCTIONS_UE_SEND_MCH_SDU, VCD_FUNCTION_OUT);
549
  stop_meas(&UE_mac_inst[module_idP].rx_mch_sdu);
550 551
}

552
int8_t ue_get_mbsfn_sf_alloction (module_id_t module_idP, uint8_t mbsfn_sync_area, unsigned char eNB_index){
553
  // currently there is one-to-one mapping between sf allocation pattern and sync area
554
  if (mbsfn_sync_area > MAX_MBSFN_AREA){
555 556
      LOG_W(MAC,"[UE %d] MBSFN synchronization area %d out of range for eNB %d\n ", module_idP, mbsfn_sync_area, eNB_index);
      return -1;
557
  }
558
  else if (UE_mac_inst[module_idP].mbsfn_SubframeConfig[mbsfn_sync_area] != NULL)
559
    return mbsfn_sync_area;
560
  else {
561 562
      LOG_W(MAC,"[UE %d] MBSFN Subframe Config pattern %d not found \n ", module_idP, mbsfn_sync_area);
      return -1;
563 564
  }
}
565

566
int ue_query_mch(module_id_t module_idP, uint32_t frameP, uint32_t subframe, uint8_t eNB_index,uint8_t *sync_area, uint8_t *mcch_active) {
567

winckel's avatar
winckel committed
568
  int i=0, j=0, ii=0, msi_pos=0, mcch_mcs = - 1;
569
  int mcch_flag=0, mtch_flag=0, msi_flag=0;
570 571
  int mbsfn_period = 0;// 1<<(UE_mac_inst[module_idP].mbsfn_SubframeConfig[0]->radioframeAllocationPeriod);
  int mcch_period = 0;// 32<<(UE_mac_inst[module_idP].mbsfn_AreaInfo[0]->mcch_Config_r9.mcch_RepetitionPeriod_r9);
winckel's avatar
winckel committed
572
  int mch_scheduling_period = -1;
573 574 575

  start_meas(&UE_mac_inst[module_idP].ue_query_mch);

576 577
  if (UE_mac_inst[module_idP].pmch_Config[0])
    mch_scheduling_period = 8<<(UE_mac_inst[module_idP].pmch_Config[0]->mch_SchedulingPeriod_r9);
578

579
  for (i=0;
580 581 582 583 584 585 586 587 588 589 590
      i< UE_mac_inst[module_idP].num_active_mbsfn_area;
      i++ ){
      // assume, that there is always a mapping
      if ((j=ue_get_mbsfn_sf_alloction(module_idP,i,eNB_index)) == -1)
        return -1; // continue;
      ii=0;
      msi_pos=0;
      mbsfn_period = 1<<(UE_mac_inst[module_idP].mbsfn_SubframeConfig[0]->radioframeAllocationPeriod);
      mcch_period = 32<<(UE_mac_inst[module_idP].mbsfn_AreaInfo[0]->mcch_Config_r9.mcch_RepetitionPeriod_r9);

      LOG_D(MAC,"[UE %d] Frame %d subframe %d: Checking MBSFN Sync Area %d/%d with SF allocation %d/%d for MCCH and MTCH (mbsfn period %d, mcch period %d,mac sched period (%d,%d))\n",
591
          module_idP,frameP, subframe,i,UE_mac_inst[module_idP].num_active_mbsfn_area,
592 593 594 595 596 597 598 599 600 601 602 603 604 605 606 607 608
          j,UE_mac_inst[module_idP].num_sf_allocation_pattern,mbsfn_period,mcch_period,
          mch_scheduling_period,UE_mac_inst[module_idP].mbsfn_SubframeConfig[j]->radioframeAllocationOffset);

      // get the real MCS value
      switch (UE_mac_inst[module_idP].mbsfn_AreaInfo[i]->mcch_Config_r9.signallingMCS_r9) {
      case 0:
        mcch_mcs = 2;
        break;
      case 1:
        mcch_mcs = 7;
        break;
      case 2:
        mcch_mcs = 13;
        break;
      case 3:
        mcch_mcs = 19;
        break;
609
      }
610

611 612
      if (frameP % mbsfn_period == UE_mac_inst[module_idP].mbsfn_SubframeConfig[j]->radioframeAllocationOffset){ // MBSFN frameP
          if (UE_mac_inst[module_idP].mbsfn_SubframeConfig[j]->subframeAllocation.present == MBSFN_SubframeConfig__subframeAllocation_PR_oneFrame){// one-frameP format
613 614 615

              if (UE_mac_inst[module_idP].pmch_Config[0]) {
                  //  Find the first subframe in this MCH to transmit MSI
616
                  if (frameP % mch_scheduling_period == UE_mac_inst[module_idP].mbsfn_SubframeConfig[j]->radioframeAllocationOffset ) {
617 618 619 620 621 622 623 624 625 626 627 628 629 630
                      while (ii == 0) {
                          ii = UE_mac_inst[module_idP].mbsfn_SubframeConfig[j]->subframeAllocation.choice.oneFrame.buf[0] & (0x80>>msi_pos);
                          msi_pos++;
                      }
                  }
              }

              // Check if the subframe is for MSI, MCCH or MTCHs and Set the correspoding flag to 1
              switch (subframe) {
              case 1:
                if (mac_xface->lte_frame_parms->frame_type == FDD) {
                    if ((UE_mac_inst[module_idP].mbsfn_SubframeConfig[j]->subframeAllocation.choice.oneFrame.buf[0] & MBSFN_FDD_SF1) == MBSFN_FDD_SF1) {
                        if (msi_pos == 1)
                          msi_flag = 1;
631
                        if ( (frameP % mcch_period == UE_mac_inst[module_idP].mbsfn_AreaInfo[i]->mcch_Config_r9.mcch_Offset_r9) &&
632 633 634 635 636 637 638 639 640 641 642 643
                            ((UE_mac_inst[module_idP].mbsfn_AreaInfo[i]->mcch_Config_r9.sf_AllocInfo_r9.buf[0] & MBSFN_FDD_SF1) == MBSFN_FDD_SF1) )
                          mcch_flag = 1;
                        mtch_flag = 1;
                    }
                }
                break;

              case 2:
                if (mac_xface->lte_frame_parms->frame_type == FDD){
                    if ((UE_mac_inst[module_idP].mbsfn_SubframeConfig[j]->subframeAllocation.choice.oneFrame.buf[0] & MBSFN_FDD_SF2) == MBSFN_FDD_SF2) {
                        if (msi_pos == 2)
                          msi_flag = 1;
644
                        if ( (frameP % mcch_period == UE_mac_inst[module_idP].mbsfn_AreaInfo[i]->mcch_Config_r9.mcch_Offset_r9) &&
645 646 647 648 649 650 651 652 653 654 655 656
                            ((UE_mac_inst[module_idP].mbsfn_AreaInfo[i]->mcch_Config_r9.sf_AllocInfo_r9.buf[0] & MBSFN_FDD_SF2) == MBSFN_FDD_SF2) )
                          mcch_flag = 1;
                        mtch_flag = 1;
                    }
                }
                break;

              case 3:
                if (mac_xface->lte_frame_parms->frame_type == TDD){// TDD
                    if ((UE_mac_inst[module_idP].mbsfn_SubframeConfig[j]->subframeAllocation.choice.oneFrame.buf[0] & MBSFN_TDD_SF3) == MBSFN_TDD_SF3) {
                        if (msi_pos == 1)
                          msi_flag = 1;
657
                        if ( (frameP % mcch_period == UE_mac_inst[module_idP].mbsfn_AreaInfo[i]->mcch_Config_r9.mcch_Offset_r9) &&
658 659 660 661 662 663 664 665 666
                            ((UE_mac_inst[module_idP].mbsfn_AreaInfo[i]->mcch_Config_r9.sf_AllocInfo_r9.buf[0] & MBSFN_TDD_SF3) == MBSFN_TDD_SF3) )
                          mcch_flag = 1;
                        mtch_flag = 1;
                    }
                }
                else {// FDD
                    if ((UE_mac_inst[module_idP].mbsfn_SubframeConfig[j]->subframeAllocation.choice.oneFrame.buf[0] & MBSFN_FDD_SF3) == MBSFN_FDD_SF3) {
                        if (msi_pos == 3)
                          msi_flag = 1;
667
                        if ((frameP % mcch_period == UE_mac_inst[module_idP].mbsfn_AreaInfo[i]->mcch_Config_r9.mcch_Offset_r9) &&
668 669 670 671 672 673 674 675 676 677 678 679
                            ((UE_mac_inst[module_idP].mbsfn_AreaInfo[i]->mcch_Config_r9.sf_AllocInfo_r9.buf[0] & MBSFN_FDD_SF3) == MBSFN_FDD_SF3) )
                          mcch_flag = 1;
                        mtch_flag = 1;
                    }
                }
                break;

              case 4:
                if (mac_xface->lte_frame_parms->frame_type == TDD){
                    if ((UE_mac_inst[module_idP].mbsfn_SubframeConfig[j]->subframeAllocation.choice.oneFrame.buf[0] & MBSFN_TDD_SF4) == MBSFN_TDD_SF4) {
                        if (msi_pos == 2)
                          msi_flag = 1;
680
                        if ((frameP % mcch_period == UE_mac_inst[module_idP].mbsfn_AreaInfo[i]->mcch_Config_r9.mcch_Offset_r9) &&
681 682 683 684 685 686 687 688 689 690 691 692
                            ((UE_mac_inst[module_idP].mbsfn_AreaInfo[i]->mcch_Config_r9.sf_AllocInfo_r9.buf[0] & MBSFN_TDD_SF4) == MBSFN_TDD_SF4) )
                          mcch_flag = 1;
                        mtch_flag = 1;
                    }
                }
                break;

              case 6:
                if (mac_xface->lte_frame_parms->frame_type == FDD){
                    if ((UE_mac_inst[module_idP].mbsfn_SubframeConfig[j]->subframeAllocation.choice.oneFrame.buf[0] & MBSFN_FDD_SF6) == MBSFN_FDD_SF6) {
                        if (msi_pos == 4)
                          msi_flag = 1;
693
                        if ((frameP % mcch_period == UE_mac_inst[module_idP].mbsfn_AreaInfo[i]->mcch_Config_r9.mcch_Offset_r9) &&
694 695 696 697 698 699 700 701 702 703 704 705
                            ((UE_mac_inst[module_idP].mbsfn_AreaInfo[i]->mcch_Config_r9.sf_AllocInfo_r9.buf[0] & MBSFN_FDD_SF6) == MBSFN_FDD_SF6) )
                          mcch_flag = 1;
                        mtch_flag = 1;
                    }
                }
                break;

              case 7:
                if (mac_xface->lte_frame_parms->frame_type == TDD){ // TDD
                    if ((UE_mac_inst[module_idP].mbsfn_SubframeConfig[j]->subframeAllocation.choice.oneFrame.buf[0] & MBSFN_TDD_SF7) == MBSFN_TDD_SF7) {
                        if (msi_pos == 3)
                          msi_flag = 1;
706
                        if ((frameP % mcch_period == UE_mac_inst[module_idP].mbsfn_AreaInfo[i]->mcch_Config_r9.mcch_Offset_r9) &&
707 708 709 710 711 712 713 714 715
                            ((UE_mac_inst[module_idP].mbsfn_AreaInfo[i]->mcch_Config_r9.sf_AllocInfo_r9.buf[0] & MBSFN_TDD_SF7) == MBSFN_TDD_SF7) )
                          mcch_flag = 1;
                        mtch_flag = 1;
                    }
                }
                else {// FDD
                    if ((UE_mac_inst[module_idP].mbsfn_SubframeConfig[j]->subframeAllocation.choice.oneFrame.buf[0] & MBSFN_FDD_SF7) == MBSFN_FDD_SF7) {
                        if (msi_pos == 5)
                          msi_flag = 1;
716
                        if ((frameP % mcch_period == UE_mac_inst[module_idP].mbsfn_AreaInfo[i]->mcch_Config_r9.mcch_Offset_r9) &&
717 718 719 720 721 722 723 724 725 726 727 728
                            ((UE_mac_inst[module_idP].mbsfn_AreaInfo[i]->mcch_Config_r9.sf_AllocInfo_r9.buf[0] & MBSFN_FDD_SF7) == MBSFN_FDD_SF7) )
                          mcch_flag = 1;
                        mtch_flag = 1;
                    }
                }
                break;

              case 8:
                if (mac_xface->lte_frame_parms->frame_type == TDD){ //TDD
                    if ((UE_mac_inst[module_idP].mbsfn_SubframeConfig[j]->subframeAllocation.choice.oneFrame.buf[0] & MBSFN_TDD_SF8) == MBSFN_TDD_SF8) {
                        if (msi_pos == 4)
                          msi_flag = 1;
729
                        if ( (frameP % mcch_period == UE_mac_inst[module_idP].mbsfn_AreaInfo[i]->mcch_Config_r9.mcch_Offset_r9) &&
730 731 732 733 734 735 736 737 738
                            ((UE_mac_inst[module_idP].mbsfn_AreaInfo[i]->mcch_Config_r9.sf_AllocInfo_r9.buf[0] & MBSFN_TDD_SF8) == MBSFN_TDD_SF8) )
                          mcch_flag = 1;
                        mtch_flag = 1;
                    }
                }
                else{ // FDD
                    if ((UE_mac_inst[module_idP].mbsfn_SubframeConfig[j]->subframeAllocation.choice.oneFrame.buf[0] & MBSFN_FDD_SF8) == MBSFN_FDD_SF8) {
                        if (msi_pos == 6)
                          msi_flag = 1;
739
                        if ((frameP % mcch_period == UE_mac_inst[module_idP].mbsfn_AreaInfo[i]->mcch_Config_r9.mcch_Offset_r9) &&
740 741 742 743 744 745 746 747 748 749 750 751
                            ((UE_mac_inst[module_idP].mbsfn_AreaInfo[i]->mcch_Config_r9.sf_AllocInfo_r9.buf[0] & MBSFN_FDD_SF8) == MBSFN_FDD_SF8) )
                          mcch_flag = 1;
                        mtch_flag = 1;
                    }
                }
                break;

              case 9:
                if (mac_xface->lte_frame_parms->frame_type == TDD){
                    if ((UE_mac_inst[module_idP].mbsfn_SubframeConfig[j]->subframeAllocation.choice.oneFrame.buf[0] & MBSFN_TDD_SF9) == MBSFN_TDD_SF9) {
                        if (msi_pos == 5)
                          msi_flag = 1;
752
                        if ((frameP % mcch_period == UE_mac_inst[module_idP].mbsfn_AreaInfo[i]->mcch_Config_r9.mcch_Offset_r9) &&
753 754 755 756 757 758 759 760 761 762
                            ((UE_mac_inst[module_idP].mbsfn_AreaInfo[i]->mcch_Config_r9.sf_AllocInfo_r9.buf[0] & MBSFN_TDD_SF9) == MBSFN_TDD_SF9) )
                          mcch_flag = 1;
                        mtch_flag = 1;
                    }
                }
                break;
              }// end switch
              // sf allocation is non-overlapping
              if ((msi_flag==1) || (mcch_flag==1) || (mtch_flag==1)){
                  LOG_D(MAC,"[UE %d] Frame %d Subframe %d: sync area %d SF alloc %d: msi flag %d, mcch flag %d, mtch flag %d\n",
763
                      module_idP, frameP, subframe,i,j,msi_flag,mcch_flag,mtch_flag);
764 765 766 767 768

                  *sync_area=i;
                  break;
              }
          }
769
          else {// four-frameP format
770
          }
771 772
      }
  } // end of for
773

774
  stop_meas(&UE_mac_inst[module_idP].ue_query_mch);
775

776 777 778
  if ( (mcch_flag==1))// || (msi_flag==1))
    *mcch_active=1;

779 780 781 782
  if ( (mcch_flag==1) || ((msi_flag==1) && (UE_mac_inst[module_idP].mcch_status==1)) ){
      return mcch_mcs;
  } else if ((mtch_flag==1) && (UE_mac_inst[module_idP].msi_status==1))
    return UE_mac_inst[module_idP].pmch_Config[0]->dataMCS_r9;
783
  else
784 785 786 787 788
    return -1;
}

#endif

789 790 791 792 793
unsigned char generate_ulsch_header(uint8_t *mac_header,
    uint8_t num_sdus,
    uint8_t short_padding,
    uint16_t *sdu_lengths,
    uint8_t *sdu_lcids,
794
    POWER_HEADROOM_CMD *power_headroom,
795
    uint16_t *crnti,
796 797 798 799
    BSR_SHORT *truncated_bsr,
    BSR_SHORT *short_bsr,
    BSR_LONG *long_bsr,
    unsigned short post_padding) {
800 801 802 803 804 805 806 807 808 809 810 811 812 813

  SCH_SUBHEADER_FIXED *mac_header_ptr = (SCH_SUBHEADER_FIXED *)mac_header;
  unsigned char first_element=0,last_size=0,i;
  unsigned char mac_header_control_elements[16],*ce_ptr;

  LOG_D(MAC,"[UE] Generate ULSCH : num_sdus %d\n",num_sdus);
#ifdef DEBUG_HEADER_PARSING
  for (i=0;i<num_sdus;i++)
    LOG_T(MAC,"[UE] sdu %d : lcid %d length %d",i,sdu_lcids[i],sdu_lengths[i]);
  LOG_T(MAC,"\n");
#endif
  ce_ptr = &mac_header_control_elements[0];

  if ((short_padding == 1) || (short_padding == 2)) {
814 815 816 817 818
      mac_header_ptr->R    = 0;
      mac_header_ptr->E    = 0;
      mac_header_ptr->LCID = SHORT_PADDING;
      first_element=1;
      last_size=1;
819 820
  }
  if (short_padding == 2) {
821 822 823 824 825 826
      mac_header_ptr->E = 1;
      mac_header_ptr++;
      mac_header_ptr->R = 0;
      mac_header_ptr->E    = 0;
      mac_header_ptr->LCID = SHORT_PADDING;
      last_size=1;
827 828 829
  }

  if (power_headroom) {
830 831 832 833 834 835 836 837 838 839 840 841 842 843
      if (first_element>0) {
          mac_header_ptr->E = 1;
          mac_header_ptr++;
      }
      else {
          first_element=1;
      }
      mac_header_ptr->R = 0;
      mac_header_ptr->E    = 0;
      mac_header_ptr->LCID = POWER_HEADROOM;
      last_size=1;
      *((POWER_HEADROOM_CMD *)ce_ptr)=(*power_headroom);
      ce_ptr+=sizeof(POWER_HEADROOM_CMD);
      LOG_D(MAC, "phr header size %d\n",sizeof(POWER_HEADROOM_CMD));
844 845 846 847
  }

  if (crnti) {
#ifdef DEBUG_HEADER_PARSING
848
      LOG_D(MAC,"[UE] CRNTI : %x (first_element %d)\n",*crnti,first_element);
849
#endif
850 851 852 853 854 855 856 857 858 859 860
      if (first_element>0) {
          mac_header_ptr->E = 1;
          mac_header_ptr++;
      }
      else {
          first_element=1;
      }
      mac_header_ptr->R    = 0;
      mac_header_ptr->E    = 0;
      mac_header_ptr->LCID = CRNTI;
      last_size=1;
861 862
      *((uint16_t *)ce_ptr)=(*crnti);
      ce_ptr+=sizeof(uint16_t);
863
      //    printf("offset %d\n",ce_ptr-mac_header_control_elements);
864 865 866
  }

  if (truncated_bsr) {
867 868 869
      if (first_element>0) {
          mac_header_ptr->E = 1;
          /*
870 871 872 873
      printf("last subheader : %x (R%d,E%d,LCID%d)\n",*(unsigned char*)mac_header_ptr,
	     ((SCH_SUBHEADER_FIXED *)mac_header_ptr)->R,
	     ((SCH_SUBHEADER_FIXED *)mac_header_ptr)->E,
	     ((SCH_SUBHEADER_FIXED *)mac_header_ptr)->LCID);
874 875 876 877 878 879
           */
          mac_header_ptr++;
      }
      else {
          first_element=1;
      }
880
#ifdef DEBUG_HEADER_PARSING
881
      LOG_D(MAC,"[UE] Scheduler Truncated BSR Header\n");
882
#endif
883 884 885 886 887 888 889 890
      mac_header_ptr->R = 0;
      mac_header_ptr->E    = 0;
      mac_header_ptr->LCID = TRUNCATED_BSR;
      last_size=1;
      *((BSR_TRUNCATED *)ce_ptr)=(*truncated_bsr);
      ce_ptr+=sizeof(BSR_TRUNCATED);

      //    printf("(cont_res) : offset %d\n",ce_ptr-mac_header_control_elements);
891 892
  }
  else if (short_bsr) {
893 894 895
      if (first_element>0) {
          mac_header_ptr->E = 1;
          /*
896 897 898 899
      printf("last subheader : %x (R%d,E%d,LCID%d)\n",*(unsigned char*)mac_header_ptr,
	     ((SCH_SUBHEADER_FIXED *)mac_header_ptr)->R,
	     ((SCH_SUBHEADER_FIXED *)mac_header_ptr)->E,
	     ((SCH_SUBHEADER_FIXED *)mac_header_ptr)->LCID);
900 901 902 903 904 905
           */
          mac_header_ptr++;
      }
      else {
          first_element=1;
      }
906
#ifdef DEBUG_HEADER_PARSING
907
      LOG_D(MAC,"[UE] Scheduler SHORT BSR Header\n");
908
#endif
909 910 911 912 913 914 915 916
      mac_header_ptr->R = 0;
      mac_header_ptr->E    = 0;
      mac_header_ptr->LCID = SHORT_BSR;
      last_size=1;
      *((BSR_SHORT *)ce_ptr)=(*short_bsr);
      ce_ptr+=sizeof(BSR_SHORT);

      //    printf("(cont_res) : offset %d\n",ce_ptr-mac_header_control_elements);
917 918
  }
  else if (long_bsr) {
919 920 921
      if (first_element>0) {
          mac_header_ptr->E = 1;
          /*
922 923 924 925
      printf("last subheader : %x (R%d,E%d,LCID%d)\n",*(unsigned char*)mac_header_ptr,
	     ((SCH_SUBHEADER_FIXED *)mac_header_ptr)->R,
	     ((SCH_SUBHEADER_FIXED *)mac_header_ptr)->E,
	     ((SCH_SUBHEADER_FIXED *)mac_header_ptr)->LCID);
926 927 928 929 930 931
           */
          mac_header_ptr++;
      }
      else {
          first_element=1;
      }
932
#ifdef DEBUG_HEADER_PARSING
933
      LOG_D(MAC,"[UE] Scheduler Long BSR Header\n");
934
#endif
935 936 937 938 939 940 941 942 943 944 945 946 947
      mac_header_ptr->R = 0;
      mac_header_ptr->E    = 0;
      mac_header_ptr->LCID = LONG_BSR;
      last_size=1;

      *(ce_ptr)     = (long_bsr->Buffer_size0 << 2) | ((long_bsr->Buffer_size1 & 0x30) >> 4);
      *(ce_ptr + 1) = ((long_bsr->Buffer_size1 & 0x0F) << 4) | ((long_bsr->Buffer_size2 & 0x3C) >> 2);
      *(ce_ptr + 2) = ((long_bsr->Buffer_size2 & 0x03) << 2) | (long_bsr->Buffer_size3 & 0x3F);
      /* Padding */
      *(ce_ptr + 3) = 0;
      ce_ptr += BSR_LONG_SIZE;

      //    printf("(cont_res) : offset %d\n",ce_ptr-mac_header_control_elements);
948 949 950 951 952
  }
  //  printf("last_size %d,mac_header_ptr %p\n",last_size,mac_header_ptr);

  for (i=0;i<num_sdus;i++) {
#ifdef DEBUG_HEADER_PARSING
953
      LOG_T(MAC,"[UE] sdu subheader %d (lcid %d, %d bytes)\n",i,sdu_lcids[i],sdu_lengths[i]);
954
#endif
955 956
      if ((first_element>0)) {
          mac_header_ptr->E = 1;
957
#ifdef DEBUG_HEADER_PARSING
958 959 960 961
          LOG_D(MAC,"[UE] last subheader : %x (R%d,E%d,LCID%d)\n",*(unsigned char*)mac_header_ptr,
              ((SCH_SUBHEADER_FIXED *)mac_header_ptr)->R,
              ((SCH_SUBHEADER_FIXED *)mac_header_ptr)->E,
              ((SCH_SUBHEADER_FIXED *)mac_header_ptr)->LCID);
962
#endif
963 964 965 966 967
          mac_header_ptr+=last_size;
          //      printf("last_size %d,mac_header_ptr %p\n",last_size,mac_header_ptr);
      }
      else {
          first_element=1;
968

969 970 971 972 973 974 975 976
      }
      if (sdu_lengths[i] < 128) {
          ((SCH_SUBHEADER_SHORT *)mac_header_ptr)->R    = 0; // 3
          ((SCH_SUBHEADER_SHORT *)mac_header_ptr)->E    = 0;
          ((SCH_SUBHEADER_SHORT *)mac_header_ptr)->F    = 0;
          ((SCH_SUBHEADER_SHORT *)mac_header_ptr)->LCID = sdu_lcids[i];
          ((SCH_SUBHEADER_SHORT *)mac_header_ptr)->L    = (unsigned char)sdu_lengths[i];
          last_size=2;
977
#ifdef DEBUG_HEADER_PARSING
978 979
          LOG_D(MAC,"[UE] short sdu\n");
          LOG_T(MAC,"[UE] last subheader : %x (R%d,E%d,LCID%d,F%d,L%d)\n",
980
              ((uint16_t*)mac_header_ptr)[0],
981 982 983 984 985
              ((SCH_SUBHEADER_SHORT *)mac_header_ptr)->R,
              ((SCH_SUBHEADER_SHORT *)mac_header_ptr)->E,
              ((SCH_SUBHEADER_SHORT *)mac_header_ptr)->LCID,
              ((SCH_SUBHEADER_SHORT *)mac_header_ptr)->F,
              ((SCH_SUBHEADER_SHORT *)mac_header_ptr)->L);
986
#endif
987 988 989 990 991 992 993 994 995 996
      }
      else {
          ((SCH_SUBHEADER_LONG *)mac_header_ptr)->R    = 0;
          ((SCH_SUBHEADER_LONG *)mac_header_ptr)->E    = 0;
          ((SCH_SUBHEADER_LONG *)mac_header_ptr)->F    = 1;
          ((SCH_SUBHEADER_LONG *)mac_header_ptr)->LCID = sdu_lcids[i];
          ((SCH_SUBHEADER_LONG *)mac_header_ptr)->L_MSB    = ((unsigned short) sdu_lengths[i]>>8)&0x7f;
          ((SCH_SUBHEADER_LONG *)mac_header_ptr)->L_LSB    = (unsigned short) sdu_lengths[i]&0xff;
          ((SCH_SUBHEADER_LONG *)mac_header_ptr)->padding  = 0x00;
          last_size=3;
997
#ifdef DEBUG_HEADER_PARSING
998
          LOG_D(MAC,"[UE] long sdu\n");
999
#endif
1000
      }
1001 1002
  }
  if (post_padding>0) {// we have lots of padding at the end of the packet
1003 1004 1005 1006 1007 1008 1009
      mac_header_ptr->E = 1;
      mac_header_ptr+=last_size;
      // add a padding element
      mac_header_ptr->R    = 0;
      mac_header_ptr->E    = 0;
      mac_header_ptr->LCID = SHORT_PADDING;
      mac_header_ptr++;
1010 1011
  }
  else { // no end of packet padding
1012 1013 1014
      // last SDU subhead is of fixed type (sdu length implicitly to be computed at UE)
      mac_header_ptr++;
      //mac_header_ptr=last_size; // FIXME: should be ++
1015
  }
1016

1017
  if ((ce_ptr-mac_header_control_elements) > 0) {
1018 1019
      memcpy((void*)mac_header_ptr,mac_header_control_elements,ce_ptr-mac_header_control_elements);
      mac_header_ptr+=(unsigned char)(ce_ptr-mac_header_control_elements);
1020 1021 1022 1023 1024 1025 1026 1027 1028 1029 1030
  }
#ifdef DEBUG_HEADER_PARSING
  LOG_T(MAC," [UE %d] header : ", crnti);
  for (i=0;i<((unsigned char*)mac_header_ptr - mac_header);i++)
    LOG_T(MAC,"%2x.",mac_header[i]);
  LOG_T(MAC,"\n");
#endif
  return((unsigned char*)mac_header_ptr - mac_header);

}

1031
void ue_get_sdu(module_id_t module_idP,frame_t frameP,sub_frame_t subframe, uint8_t eNB_index,uint8_t *ulsch_buffer,uint16_t buflen, uint8_t *access_mode) {
1032 1033

  mac_rlc_status_resp_t rlc_status;
1034 1035
  uint8_t dcch_header_len=0,dcch1_header_len=0,dtch_header_len=0;
  uint8_t dcch_header_len_tmp=0, dtch_header_len_tmp=0;
1036
  uint8_t bsr_header_len=0, bsr_ce_len=0, bsr_len=0;
1037 1038 1039 1040 1041 1042
  uint8_t phr_header_len=0, phr_ce_len=0,phr_len=0;
  uint16_t sdu_lengths[8] = { 0, 0, 0, 0, 0, 0, 0, 0 };
  uint8_t sdu_lcids[8]    = { 0, 0, 0, 0, 0, 0, 0, 0 };
  uint8_t payload_offset=0,num_sdus=0;
  uint8_t ulsch_buff[MAX_ULSCH_PAYLOAD_BYTES];
  uint16_t sdu_length_total=0;
1043 1044 1045 1046 1047 1048 1049
  BSR_SHORT bsr_short;
  BSR_LONG bsr_long;
  BSR_SHORT *bsr_s=&bsr_short;
  BSR_LONG  *bsr_l=&bsr_long;
  POWER_HEADROOM_CMD phr;
  POWER_HEADROOM_CMD *phr_p=&phr;
  unsigned short short_padding=0, post_padding=0;
Cedric Roux's avatar
Cedric Roux committed
1050
  int lcgid;
1051 1052 1053
  int j; // used for padding
  // Compute header length

1054
  start_meas(&UE_mac_inst[module_idP].tx_ulsch_sdu);
1055
  vcd_signal_dumper_dump_function_by_name(VCD_SIGNAL_DUMPER_FUNCTIONS_UE_GET_SDU, VCD_FUNCTION_IN);
1056
  
Cedric Roux's avatar
Cedric Roux committed
1057
#ifdef CBA
1058
  if (*access_mode==CBA_ACCESS){
1059 1060
      LOG_D(MAC,"[UE %d] frameP %d subframe %d try CBA transmission\n",
          module_idP, frameP, subframe);
1061
      //if (UE_mac_inst[module_idP].scheduling_info.LCID_status[DTCH] == LCID_EMPTY)
1062
      if (use_cba_access(module_idP,frameP,subframe,eNB_index)==0){
1063 1064 1065 1066
          *access_mode=POSTPONED_ACCESS;
          vcd_signal_dumper_dump_function_by_name(VCD_SIGNAL_DUMPER_FUNCTIONS_UE_GET_SDU, VCD_FUNCTION_OUT);
          return;
      }
1067 1068
      LOG_D(MAC,"[UE %d] frameP %d subframe %d CBA transmission oppurtunity, tbs %d\n",
          module_idP, frameP, subframe,buflen);
1069 1070 1071 1072 1073 1074 1075 1076
  }
#endif
  dcch_header_len=2;//sizeof(SCH_SUBHEADER_SHORT);
  dcch1_header_len=2;//sizeof(SCH_SUBHEADER_SHORT);
  // hypo length,in case of long header skip the padding byte
  dtch_header_len=(buflen > 128 ) ? 3 : 2 ; //sizeof(SCH_SUBHEADER_LONG)-1 : sizeof(SCH_SUBHEADER_SHORT);
  bsr_header_len = 1;//sizeof(SCH_SUBHEADER_FIXED);
  phr_header_len = 1;//sizeof(SCH_SUBHEADER_FIXED);
1077
  phr_ce_len = (UE_mac_inst[module_idP].PHR_reporting_active == 1) ? 1 /* sizeof(POWER_HEADROOM_CMD)*/: 0;
1078
  if (phr_ce_len > 0){
1079 1080 1081
      phr_len = phr_ce_len + phr_header_len;
      LOG_D(MAC,"[UE %d] header size info: PHR len %d (ce%d,hdr%d) buff_len %d\n",
          module_idP, phr_len, phr_ce_len, phr_header_len, buflen);
1082 1083
  }else
    phr_len=0;
1084 1085

  bsr_ce_len = get_bsr_len (module_idP, buflen-phr_len);
1086
  if (bsr_ce_len > 0 ){
1087 1088 1089
      bsr_len = bsr_ce_len + bsr_header_len;
      LOG_D(MAC,"[UE %d] header size info: dcch %d, dcch1 %d, dtch %d, bsr (ce%d,hdr%d) buff_len %d\n",
          module_idP, dcch_header_len,dcch1_header_len,dtch_header_len, bsr_ce_len, bsr_header_len, buflen);
1090 1091 1092 1093 1094 1095 1096
  } else {
    bsr_len=0;
    //LOG_D(MAC,"[UE %d] Empty buffers, send a long BSR to reset the bsr at eNB \n ",Mod_id);
    //    bsr_ce_len = sizeof(BSR_LONG);
    //bsr_len = bsr_ce_len + bsr_header_len;
  }
    // check for UL bandwidth requests and add SR control element
1097 1098

  // check for UL bandwidth requests and add SR control element
1099 1100 1101

  // Check for DCCH first
  sdu_lengths[0]=0;
1102 1103 1104

  if (UE_mac_inst[module_idP].scheduling_info.LCID_status[DCCH] == LCID_NOT_EMPTY) {

Lionel Gauthier's avatar
Lionel Gauthier committed
1105
      rlc_status = mac_rlc_status_ind(0, module_idP,frameP,ENB_FLAG_NO,MBMS_FLAG_NO,
1106 1107 1108
          DCCH,
          (buflen-dcch_header_len-bsr_len-phr_len));
      LOG_D(MAC, "[UE %d] Frame %d : UL-DCCH -> ULSCH, RRC message has %d bytes to "
Cedric Roux's avatar
Cedric Roux committed
1109
          "send (Transport Block size %d, mac header len %d)\n",
1110
          module_idP,frameP, rlc_status.bytes_in_buffer,buflen,dcch_header_len);
1111

Lionel Gauthier's avatar
Lionel Gauthier committed
1112
      sdu_lengths[0] += mac_rlc_data_req(0, module_idP,frameP,ENB_FLAG_NO, MBMS_FLAG_NO,
1113 1114 1115 1116 1117 1118 1119
          DCCH,
          (char *)&ulsch_buff[sdu_lengths[0]]);

      sdu_length_total += sdu_lengths[0];
      sdu_lcids[0] = DCCH;
      LOG_D(MAC,"[UE %d] TX Got %d bytes for DCCH\n",module_idP,sdu_lengths[0]);
      num_sdus = 1;
1120
      update_bsr(module_idP, frameP, DCCH, UE_mac_inst[module_idP].scheduling_info.LCGID[DCCH]);
1121
      //header_len +=2;
1122 1123
  }
  else {
1124 1125
      dcch_header_len=0;
      num_sdus = 0;
1126 1127 1128
  }

  // DCCH1
1129
  if (UE_mac_inst[module_idP].scheduling_info.LCID_status[DCCH1] == LCID_NOT_EMPTY) {
1130

Lionel Gauthier's avatar
Lionel Gauthier committed
1131
      rlc_status = mac_rlc_status_ind(0, module_idP,frameP,ENB_FLAG_NO,MBMS_FLAG_NO,
1132 1133
          DCCH1,
          (buflen-bsr_len-phr_len-dcch_header_len-dcch1_header_len-sdu_length_total));
1134

1135
      LOG_D(MAC,"[UE %d] Frame %d : UL-DCCH1 -> ULSCH, RRC message has %d bytes to"
Cedric Roux's avatar
Cedric Roux committed
1136
          " send (Transport Block size %d, mac header len %d)\n",
1137
          module_idP,frameP, rlc_status.bytes_in_buffer,buflen,dcch1_header_len);
1138

Lionel Gauthier's avatar
Lionel Gauthier committed
1139
      sdu_lengths[num_sdus] = mac_rlc_data_req(0, module_idP,frameP,ENB_FLAG_NO,MBMS_FLAG_NO,
1140 1141 1142 1143 1144 1145
          DCCH1,
          (char *)&ulsch_buff[sdu_lengths[0]]);
      sdu_length_total += sdu_lengths[num_sdus];
      sdu_lcids[num_sdus] = DCCH1;
      LOG_D(MAC,"[UE %d] TX Got %d bytes for DCCH1\n",module_idP,sdu_lengths[num_sdus]);
      num_sdus++;
1146
      //update_bsr(module_idP, frameP, DCCH1);
1147
      //dcch_header_len +=2; // include dcch1
1148 1149
  }
  else {
1150
      dcch1_header_len =0;
1151 1152
  }

1153
  if ((UE_mac_inst[module_idP].scheduling_info.LCID_status[DTCH] == LCID_NOT_EMPTY) &&
1154 1155
      ((bsr_len+phr_len+dcch_header_len+dcch1_header_len+dtch_header_len+sdu_length_total) <= buflen)){

1156 1157 1158 1159
      // optimize the dtch header lenght
      //if ((UE_mac_inst[module_idP].scheduling_info.BSR_bytes[DTCH] > 128) &&
      /*   if (((UE_mac_inst[module_idP].scheduling_info.BSR_bytes[DTCH] >= 128) &&
	((UE_mac_inst[module_idP].scheduling_info.BSR_bytes[DTCH]+bsr_len+phr_len+dcch_header_len+dcch1_header_len+dtch_header_len) > buflen)&&
1160 1161
	 buflen >=128 ))
      dtch_header_len = 3;//sizeof(SCH_SUBHEADER_LONG);
1162
    else
1163
      dtch_header_len = 2;//sizeof(SCH_SUBHEADER_SHORT);
1164
       */
Lionel Gauthier's avatar
Lionel Gauthier committed
1165
      rlc_status = mac_rlc_status_ind(0, module_idP,frameP,ENB_FLAG_NO,MBMS_FLAG_NO,
1166 1167 1168 1169
          DTCH,
          buflen-bsr_len-phr_len-dcch_header_len-dcch1_header_len-dtch_header_len-sdu_length_total);

      LOG_D(MAC,"[UE %d] Frame %d : UL-DTCH -> ULSCH, %d bytes to send (Transport Block size %d, mac header len %d, BSR byte[DTCH] %d)\n",
1170
          module_idP,frameP, rlc_status.bytes_in_buffer,buflen,dtch_header_len,
1171 1172
          UE_mac_inst[module_idP].scheduling_info.BSR_bytes[DTCH]);

Lionel Gauthier's avatar
Lionel Gauthier committed
1173
      sdu_lengths[num_sdus] = mac_rlc_data_req(0, module_idP,frameP, ENB_FLAG_NO, MBMS_FLAG_NO,
1174 1175 1176 1177 1178 1179 1180 1181 1182
          DTCH,
          (char *)&ulsch_buff[sdu_length_total]);

      //adjust dtch header
      dtch_header_len = (sdu_lengths[num_sdus] >= 128) ? 3 : 2;
      LOG_D(MAC,"[UE %d] TX Got %d bytes for DTCH\n",module_idP,sdu_lengths[num_sdus]);
      sdu_lcids[num_sdus] = DTCH;
      sdu_length_total += sdu_lengths[num_sdus];
      num_sdus++;
1183
      UE_mac_inst[module_idP].ul_active = update_bsr(module_idP, frameP, DTCH, UE_mac_inst[module_idP].scheduling_info.LCGID[DTCH]);
1184 1185
  }
  else { // no rlc pdu : generate the dummy header
1186
      dtch_header_len = 0;
1187
  }
1188 1189

  lcgid= get_bsr_lcgid(module_idP);
1190 1191

  if (lcgid < 0 ) {
1192 1193
      bsr_s = NULL;
      bsr_l = NULL ;
1194
  } else if ((lcgid ==MAX_NUM_LCGID) && (bsr_ce_len == sizeof(BSR_LONG))) {
1195 1196 1197 1198 1199
      bsr_s = NULL;
      bsr_l->Buffer_size0 = UE_mac_inst[module_idP].scheduling_info.BSR[LCGID0];
      bsr_l->Buffer_size1 = UE_mac_inst[module_idP].scheduling_info.BSR[LCGID1];
      bsr_l->Buffer_size2 = UE_mac_inst[module_idP].scheduling_info.BSR[LCGID2];
      bsr_l->Buffer_size3 = UE_mac_inst[module_idP].scheduling_info.BSR[LCGID3];
1200
      LOG_D(MAC, "[UE %d] Frame %d report long BSR (level LCGID0 %d,level LCGID1 %d,level LCGID2 %d,level LCGID3 %d)\n", module_idP,frameP,
1201 1202 1203 1204
          UE_mac_inst[module_idP].scheduling_info.BSR[LCGID0],
          UE_mac_inst[module_idP].scheduling_info.BSR[LCGID1],
          UE_mac_inst[module_idP].scheduling_info.BSR[LCGID2],
          UE_mac_inst[module_idP].scheduling_info.BSR[LCGID3]);
1205
  } else if (bsr_ce_len == sizeof(BSR_SHORT)) {
1206 1207 1208 1209
      bsr_l = NULL;
      bsr_s->LCGID = lcgid;
      bsr_s->Buffer_size = UE_mac_inst[module_idP].scheduling_info.BSR[lcgid];
      LOG_D(MAC,"[UE %d] Frame %d report SHORT BSR with level %d for LCGID %d\n",
1210
          module_idP, frameP, UE_mac_inst[module_idP].scheduling_info.BSR[lcgid],lcgid);
1211 1212 1213 1214 1215
  } else {
      bsr_s = NULL;
      bsr_l = NULL;
  }

1216
  // build PHR and update the timers
1217
  if (phr_ce_len == sizeof(POWER_HEADROOM_CMD)){
1218 1219 1220
      phr_p->PH = get_phr_mapping(module_idP,eNB_index);
      phr_p->R  = 0;
      LOG_D(MAC,"[UE %d] Frame %d report PHR with mapping (%d->%d) for LCID %d\n",
1221
          module_idP,frameP, mac_xface->get_PHR(module_idP,eNB_index), phr_p->PH,POWER_HEADROOM);
1222
      update_phr(module_idP);
1223 1224 1225
  }else
    phr_p=NULL;

1226
  LOG_T(MAC,"[UE %d] Frame %d: bsr s %p bsr_l %p, phr_p %p\n",  module_idP,frameP,bsr_s, bsr_l, phr_p);
1227

1228
  // adjust the header length
1229 1230 1231
  dcch_header_len_tmp = dcch_header_len;
  dtch_header_len_tmp = dtch_header_len;
  if (dtch_header_len==0)
1232 1233 1234
    dcch_header_len = (dcch_header_len>0)? 1: dcch_header_len;
  else
    dtch_header_len= (dtch_header_len >0)? 1: dtch_header_len;   // for short and long, cut the length+F fields
1235 1236 1237 1238

  if ((buflen-bsr_len-phr_len-dcch_header_len-dcch1_header_len-dtch_header_len-sdu_length_total) <= 2) {
      short_padding = buflen-bsr_len-phr_len-dcch_header_len-dcch1_header_len-dtch_header_len-sdu_length_total;
      post_padding = 0;
1239 1240
  }
  else {
1241 1242 1243 1244 1245 1246 1247 1248 1249 1250
      if ((buflen-bsr_len-phr_len-dcch_header_len-dcch1_header_len-dtch_header_len-sdu_length_total) == buflen) {
            *access_mode=CANCELED_ACCESS;
      }
      short_padding = 0;
      if (dtch_header_len==0)
        dcch_header_len = dcch_header_len_tmp;
      else
        dtch_header_len= dtch_header_len_tmp;

      post_padding = buflen-bsr_len-phr_len-dcch_header_len-dcch1_header_len-dtch_header_len-sdu_length_total -1 ;
1251
  }
1252

1253 1254
  // Generate header
  // if (num_sdus>0) {
1255

1256
  payload_offset = generate_ulsch_header(ulsch_buffer,  // mac header
1257 1258 1259 1260 1261 1262 1263 1264 1265 1266
      num_sdus,      // num sdus
      short_padding,            // short pading
      sdu_lengths,  // sdu length
      sdu_lcids,    // sdu lcid
      phr_p,  // power headroom
      NULL,  // crnti
      NULL,  // truncated bsr
      bsr_s, // short bsr
      bsr_l,
      post_padding); // long_bsr
1267
  
1268
  LOG_I(MAC,"[UE %d] Generate header :bufflen %d  sdu_length_total %d, num_sdus %d, sdu_lengths[0] %d, sdu_lcids[0] %d => payload offset %d,  dcch_header_len %d, dtch_header_len %d, padding %d,post_padding %d, bsr len %d, phr len %d, reminder %d \n",
1269 1270
      module_idP,buflen, sdu_length_total,num_sdus,sdu_lengths[0],sdu_lcids[0],payload_offset, dcch_header_len,  dtch_header_len,
      short_padding,post_padding, bsr_len, phr_len,buflen-sdu_length_total-payload_offset);
1271 1272 1273 1274 1275 1276 1277 1278
  // cycle through SDUs and place in ulsch_buffer
  memcpy(&ulsch_buffer[payload_offset],ulsch_buff,sdu_length_total);
  // fill remainder of DLSCH with random data
  for (j=0;j<(buflen-sdu_length_total-payload_offset);j++)
    ulsch_buffer[payload_offset+sdu_length_total+j] = (char)(taus()&0xff);

#if defined(USER_MODE) && defined(OAI_EMU)
  if (oai_emulation.info.opt_enabled)
1279
    trace_pdu(0, ulsch_buffer, buflen, module_idP, 3, UE_mac_inst[module_idP].crnti, subframe, 0, 0);
1280
  LOG_D(OPT,"[UE %d][ULSCH] Frame %d trace pdu for rnti %x  with size %d\n",
1281
      module_idP, frameP, UE_mac_inst[module_idP].crnti, buflen);
1282
#endif
1283 1284 1285 1286 1287 1288

  LOG_D(MAC,"[UE %d][SR] Gave SDU to PHY, clearing any scheduling request\n",
      module_idP,payload_offset, sdu_length_total);
  UE_mac_inst[module_idP].scheduling_info.SR_pending=0;
  UE_mac_inst[module_idP].scheduling_info.SR_COUNTER=0;
  vcd_signal_dumper_dump_function_by_name(VCD_SIGNAL_DUMPER_FUNCTIONS_UE_GET_SDU, VCD_FUNCTION_OUT);
1289
    stop_meas(&UE_mac_inst[module_idP].tx_ulsch_sdu);
1290 1291 1292 1293 1294 1295 1296 1297 1298
}

// called at each subframe
// Performs :
// 1. Trigger PDCP every 5ms
// 2. Call RRC for link status return to PHY
// 3. Perform SR/BSR procedures for scheduling feedback
// 4. Perform PHR procedures

1299
UE_L2_STATE_t ue_scheduler(module_id_t module_idP,frame_t frameP, sub_frame_t subframeP, lte_subframe_t directionP,uint8_t eNB_indexP) {
1300 1301 1302

  int lcid; // lcid index
  int TTI= 1;
winckel's avatar
winckel committed
1303 1304
  int bucketsizeduration = -1;
  int bucketsizeduration_max = -1;
1305
  // mac_rlc_status_resp_t rlc_status[MAX_NUM_LCGID]; // 4
1306
  // int8_t lcg_id;
1307
  struct RACH_ConfigCommon *rach_ConfigCommon = (struct RACH_ConfigCommon *)NULL;
1308
#ifdef EXMIMO
1309
  int ret;
1310
#endif
1311
#if defined(ENABLE_ITTI)
1312 1313 1314 1315
  MessageDef   *msg_p;
  const char   *msg_name;
  instance_t    instance;
  int           result;
1316
#endif
1317
  start_meas(&UE_mac_inst[module_idP].ue_scheduler);
1318 1319
  vcd_signal_dumper_dump_function_by_name(VCD_SIGNAL_DUMPER_FUNCTIONS_UE_SCHEDULER, VCD_FUNCTION_IN);

1320 1321
#if defined(ENABLE_ITTI)
  do {
1322 1323
      // Checks if a message has been sent to MAC sub-task
      itti_poll_msg (TASK_MAC_UE, &msg_p);
1324

1325 1326 1327
      if (msg_p != NULL) {
          msg_name = ITTI_MSG_NAME (msg_p);
          instance = ITTI_MSG_INSTANCE (msg_p);
1328

1329 1330
          switch (ITTI_MSG_ID(msg_p)) {
          case RRC_MAC_CCCH_DATA_REQ:
1331
            LOG_I(MAC, "Received %s from %s: instance %d, frameP %d, eNB_index %d\n",
1332 1333 1334
                msg_name, ITTI_MSG_ORIGIN_NAME(msg_p), instance,
                RRC_MAC_CCCH_DATA_REQ (msg_p).frame, RRC_MAC_CCCH_DATA_REQ (msg_p).enb_index);

1335 1336
            // TODO process CCCH data req.
            break;
1337

1338

1339 1340 1341 1342
          default:
            LOG_E(MAC, "Received unexpected message %s\n", msg_name);
            break;
          }
1343

1344 1345 1346
          result = itti_free (ITTI_MSG_ORIGIN_ID(msg_p), msg_p);
          AssertFatal (result == EXIT_SUCCESS, "Failed to free memory (%d)!\n", result);
      }
1347 1348 1349
  } while(msg_p != NULL);
#endif

1350 1351
  //Mac_rlc_xface->frameP=frameP;
  //Rrc_xface->Frame_index=Mac_rlc_xface->frameP;
1352 1353
  //if (subframe%5 == 0)
#ifdef EXMIMO
1354
  pdcp_run(frameP, 0, module_idP, eNB_indexP);
1355
#endif
1356 1357
  UE_mac_inst[module_idP].frame = frameP;
  UE_mac_inst[module_idP].subframe = subframeP;
1358 1359

#ifdef CELLULAR
1360
  rrc_rx_tx(module_idP, frameP, 0, eNB_indexP);
1361
#else
1362 1363 1364 1365
  switch (rrc_rx_tx(module_idP,
      frameP,
      0,
      eNB_indexP)) {
1366 1367 1368 1369
  case RRC_OK:
    break;
  case RRC_ConnSetup_failed:
    LOG_E(MAC,"RRCConnectionSetup failed, returning to IDLE state\n");
1370
    vcd_signal_dumper_dump_function_by_name(VCD_SIGNAL_DUMPER_FUNCTIONS_UE_SCHEDULER, VCD_FUNCTION_OUT);
1371
    stop_meas(&UE_mac_inst[module_idP].ue_scheduler);
1372 1373 1374 1375
    return(CONNECTION_LOST);
    break;
  case RRC_PHY_RESYNCH:
    LOG_E(MAC,"RRC Loss of synch, returning PHY_RESYNCH\n");
1376
    vcd_signal_dumper_dump_function_by_name(VCD_SIGNAL_DUMPER_FUNCTIONS_UE_SCHEDULER, VCD_FUNCTION_OUT);
1377
    stop_meas(&UE_mac_inst[module_idP].ue_scheduler);
1378
    return(PHY_RESYNCH);
1379
  case RRC_Handover_failed:
1380
    LOG_N(MAC,"Handover failure for UE %d eNB_index %d\n",module_idP,eNB_indexP);
1381
    //Invalid...need to add another MAC UE state for re-connection procedure
1382
    mac_xface->phy_config_afterHO_ue(module_idP,eNB_indexP,(MobilityControlInfo_t *)NULL,1);
1383 1384 1385 1386
    //return(3);
    break;
  case RRC_HO_STARTED:
    LOG_I(MAC,"RRC handover, Instruct PHY to start the contention-free PRACH and synchronization\n");
1387
    vcd_signal_dumper_dump_function_by_name(VCD_SIGNAL_DUMPER_FUNCTIONS_UE_SCHEDULER, VCD_FUNCTION_OUT);
1388
    stop_meas(&UE_mac_inst[module_idP].ue_scheduler);
1389
    return(PHY_HO_PRACH);
1390 1391 1392
  default:
    break;
  }
1393
#endif
1394 1395

  // Check Contention resolution timer (put in a function later)
1396
  if (UE_mac_inst[module_idP].RA_contention_resolution_timer_active == 1) {
1397

1398 1399 1400 1401
      if (UE_mac_inst[module_idP].radioResourceConfigCommon)
        rach_ConfigCommon = &UE_mac_inst[module_idP].radioResourceConfigCommon->rach_ConfigCommon;
      else {
          LOG_E(MAC,"FATAL: radioResourceConfigCommon is NULL!!!\n");
1402
	  vcd_signal_dumper_dump_function_by_name(VCD_SIGNAL_DUMPER_FUNCTIONS_UE_SCHEDULER, VCD_FUNCTION_OUT);
1403
	  stop_meas(&UE_mac_inst[module_idP].ue_scheduler);
1404 1405
	  mac_xface->macphy_exit("");
	  //return(RRC_OK);
1406
      }
1407

1408
      LOG_I(MAC,"Frame %d: Contention resolution timer %d/%d\n",frameP,UE_mac_inst[module_idP].RA_contention_resolution_cnt,
1409 1410 1411 1412 1413 1414 1415 1416 1417 1418
          ((1+rach_ConfigCommon->ra_SupervisionInfo.mac_ContentionResolutionTimer)<<3));

      UE_mac_inst[module_idP].RA_contention_resolution_cnt++;
      if (UE_mac_inst[module_idP].RA_contention_resolution_cnt ==
          ((1+rach_ConfigCommon->ra_SupervisionInfo.mac_ContentionResolutionTimer)<<3)) {
          UE_mac_inst[module_idP].RA_active = 0;
          // Signal PHY to quit RA procedure
          LOG_E(MAC,"Contention resolution timer expired, RA failed\n");
          mac_xface->ra_failed(module_idP,eNB_indexP);
      }
1419 1420 1421 1422 1423 1424 1425
  }


  // call SR procedure to generate pending SR and BSR for next PUCCH/PUSCH TxOp.  This should implement the procedures
  // outlined in Sections 5.4.4 an 5.4.5 of 36.321
  // Put this in another function

1426
  // Get RLC status info and update Bj for all lcids that are active
1427
  for (lcid=DCCH; lcid <= DTCH; lcid++ ) {
1428 1429 1430 1431 1432 1433 1434 1435 1436 1437 1438 1439 1440 1441 1442 1443
      if ((lcid == 0) ||(UE_mac_inst[module_idP].logicalChannelConfig[lcid])) {
          // meausre the Bj
          if ((directionP == SF_UL)&& (UE_mac_inst[module_idP].scheduling_info.Bj[lcid] >= 0)){
              if (UE_mac_inst[module_idP].logicalChannelConfig[lcid]->ul_SpecificParameters) {
                  bucketsizeduration = UE_mac_inst[module_idP].logicalChannelConfig[lcid]->ul_SpecificParameters->prioritisedBitRate * TTI;
                  bucketsizeduration_max = get_ms_bucketsizeduration(UE_mac_inst[module_idP].logicalChannelConfig[lcid]->ul_SpecificParameters->bucketSizeDuration);
              }
              else {
                  LOG_E(MAC,"[UE %d] lcid %d, NULL ul_SpecificParameters\n",module_idP,lcid);
                  mac_xface->macphy_exit("");
              }
              if ( UE_mac_inst[module_idP].scheduling_info.Bj[lcid] > bucketsizeduration_max )
                UE_mac_inst[module_idP].scheduling_info.Bj[lcid] = bucketsizeduration_max;
              else
                UE_mac_inst[module_idP].scheduling_info.Bj[lcid] = bucketsizeduration;
          }
1444
          if (update_bsr(module_idP,frameP, lcid, UE_mac_inst[module_idP].scheduling_info.LCGID[lcid])) {
1445 1446 1447 1448 1449 1450
              UE_mac_inst[module_idP].scheduling_info.SR_pending= 1;
              LOG_D(MAC,"[UE %d][SR] Frame %d subframe %d SR for PUSCH is pending for LCGID %d with BSR level %d (%d bytes in RLC)\n",
                  module_idP, frameP,subframeP,UE_mac_inst[module_idP].scheduling_info.LCGID[lcid],
                  UE_mac_inst[module_idP].scheduling_info.BSR[UE_mac_inst[module_idP].scheduling_info.LCGID[lcid]],
                  UE_mac_inst[module_idP].scheduling_info.BSR_bytes[UE_mac_inst[module_idP].scheduling_info.LCGID[lcid]]);
          }
1451 1452 1453
      }
  }
  // UE has no valid phy config dedicated ||  no valid/released  SR
1454 1455 1456 1457 1458 1459
  if ((UE_mac_inst[module_idP].physicalConfigDedicated == NULL)) {
      // cancel all pending SRs
      UE_mac_inst[module_idP].scheduling_info.SR_pending=0;
      UE_mac_inst[module_idP].ul_active=0;
      LOG_T(MAC,"[UE %d] Release all SRs \n", module_idP);
      vcd_signal_dumper_dump_function_by_name(VCD_SIGNAL_DUMPER_FUNCTIONS_UE_SCHEDULER, VCD_FUNCTION_OUT);
1460
      stop_meas(&UE_mac_inst[module_idP].ue_scheduler);
1461
      return(CONNECTION_OK);
1462 1463
  }

1464 1465
  if ((UE_mac_inst[module_idP].physicalConfigDedicated->schedulingRequestConfig == NULL) ||
      (UE_mac_inst[module_idP].physicalConfigDedicated->schedulingRequestConfig->present == SchedulingRequestConfig_PR_release)){
1466

1467
      // initiate RA with CRNTI included in msg3 (no contention) as descibed in 36.321 sec 5.1.5
1468

1469 1470 1471 1472
      // cancel all pending SRs
      UE_mac_inst[module_idP].scheduling_info.SR_pending=0;
      UE_mac_inst[module_idP].ul_active=0;
      LOG_T(MAC,"[UE %d] Release all SRs \n", module_idP);
1473 1474 1475
  }

  // Put this in a function
1476
  // Call PHR procedure as described in Section 5.4.6 in 36.321
1477 1478 1479 1480 1481 1482 1483 1484 1485
  if (UE_mac_inst[module_idP].PHR_state == MAC_MainConfig__phr_Config_PR_setup){ // normal operation
      if (UE_mac_inst[module_idP].PHR_reconfigured == 1) { // upon (re)configuration of the power headroom reporting functionality by upper layers
          UE_mac_inst[module_idP].PHR_reporting_active = 1;
          UE_mac_inst[module_idP].PHR_reconfigured = 0;
      } else {
          //LOG_D(MAC,"PHR normal operation %d active %d \n", UE_mac_inst[module_idP].scheduling_info.periodicPHR_SF, UE_mac_inst[module_idP].PHR_reporting_active);
          if ((UE_mac_inst[module_idP].scheduling_info.prohibitPHR_SF <= 0) &&
              ((mac_xface->get_PL(module_idP,eNB_indexP) <  UE_mac_inst[module_idP].scheduling_info.PathlossChange_db) ||
                  (UE_mac_inst[module_idP].power_backoff_db[eNB_indexP] > UE_mac_inst[module_idP].scheduling_info.PathlossChange_db)))
1486
            // trigger PHR and reset the timer later when the PHR report is sent
1487 1488 1489 1490
            UE_mac_inst[module_idP].PHR_reporting_active = 1;
          else if (UE_mac_inst[module_idP].PHR_reporting_active ==0 )
            UE_mac_inst[module_idP].scheduling_info.prohibitPHR_SF--;
          if (UE_mac_inst[module_idP].scheduling_info.periodicPHR_SF <= 0 )
1491
            // trigger PHR and reset the timer later when the PHR report is sent
1492 1493 1494 1495
            UE_mac_inst[module_idP].PHR_reporting_active = 1;
          else if (UE_mac_inst[module_idP].PHR_reporting_active == 0 )
            UE_mac_inst[module_idP].scheduling_info.periodicPHR_SF--;
      }
1496
  } else {    // release / nothing
1497
      UE_mac_inst[module_idP].PHR_reporting_active = 0; // release PHR
1498 1499 1500
  }
  //If the UE has UL resources allocated for new transmission for this TTI here:
  vcd_signal_dumper_dump_function_by_name(VCD_SIGNAL_DUMPER_FUNCTIONS_UE_SCHEDULER, VCD_FUNCTION_OUT);
1501
  stop_meas(&UE_mac_inst[module_idP].ue_scheduler);
1502 1503 1504 1505 1506
  return(CONNECTION_OK);
}

// to be improved
#ifdef CBA
1507
double uniform_rngen(int min, int max) {
1508 1509 1510 1511
  double random = (double)taus()/((double)0xffffffff);
  return (max - min) * random + min;
}

1512
int use_cba_access(module_id_t module_idP,frame_t frameP,sub_frame_t subframe, uint8_t eNB_index){
1513 1514 1515 1516 1517 1518

  if (( ((UE_mac_inst[module_idP].scheduling_info.BSR[LCGID1]>0)&&(UE_mac_inst[module_idP].scheduling_info.BSR[LCGID1]<64))   ||
      ((UE_mac_inst[module_idP].scheduling_info.BSR[LCGID2]>0)&&(UE_mac_inst[module_idP].scheduling_info.BSR[LCGID2]<64))   ||
      ((UE_mac_inst[module_idP].scheduling_info.BSR[LCGID3]>0)&&(UE_mac_inst[module_idP].scheduling_info.BSR[LCGID3]<64)) )
      //  && (UE_mac_inst[module_idP].ul_active == 0) // check if the ul is acrtive
      && (UE_mac_inst[module_idP].cba_last_access[0] <= 0) ) { // backoff
1519
      //  LOG_D(MAC,"[UE %d] Frame %d Subframe %d: the current CBA backoff is %d \n", module_idP, frameP, subframe,
1520 1521 1522
      //  UE_mac_inst[module_idP].cba_last_access[0] );

      UE_mac_inst[module_idP].cba_last_access[0]= round(uniform_rngen(1,10));
1523
      LOG_D(MAC,"[UE %d] Frame %d Subframe %d: start a new CBA backoff  %d UL active state %d \n", module_idP, frameP, subframe,
1524 1525 1526 1527 1528 1529 1530 1531 1532 1533 1534
          UE_mac_inst[module_idP].cba_last_access[0], UE_mac_inst[module_idP].ul_active);

      return 1;
  } else if (( ((UE_mac_inst[module_idP].scheduling_info.BSR[LCGID1]> 0 ))   ||
      ((UE_mac_inst[module_idP].scheduling_info.BSR[LCGID2]> 0 ))   ||
      ((UE_mac_inst[module_idP].scheduling_info.BSR[LCGID3]> 0 )) )
      // && (UE_mac_inst[module_idP].ul_active == 0) // check if the ul is acrtive
      && (UE_mac_inst[module_idP].cba_last_access[0]> 0) ){

      UE_mac_inst[module_idP].cba_last_access[0]-=1;
      LOG_D(MAC,"[UE %d] Frame %d Subframe %d: CBA backoff is decreased by one to %d UL active state %d \n",
1535
          module_idP, frameP, subframe,
1536 1537 1538 1539 1540 1541 1542
          UE_mac_inst[module_idP].cba_last_access[0], UE_mac_inst[module_idP].ul_active);

  } /*else if (( ((UE_mac_inst[module_idP].scheduling_info.BSR[LCGID1] == 0 ))   &&
	       ((UE_mac_inst[module_idP].scheduling_info.BSR[LCGID2] == 0 ))   &&
	       ((UE_mac_inst[module_idP].scheduling_info.BSR[LCGID3] ==  0 )) )
	     && (UE_mac_inst[module_idP].cba_last_access[0]> 0) ){
    UE_mac_inst[module_idP].cba_last_access[0]-=1;
1543
    }*/
1544

1545
  return 0;
1546

1547 1548 1549
}
#endif

1550
int get_bsr_lcgid (module_id_t module_idP){
1551 1552
  int lcgid, lcgid_tmp=-1;
  int num_active_lcgid = 0;
1553

1554
  for (lcgid = 0 ; lcgid < MAX_NUM_LCGID; lcgid++){
1555 1556 1557 1558
      if (UE_mac_inst[module_idP].scheduling_info.BSR[lcgid] > 0 ){
          lcgid_tmp = lcgid;
          num_active_lcgid+=1;
      }
1559 1560
  }
  if (num_active_lcgid == 0)
1561
      return -1;
1562
  else if (num_active_lcgid == 1)
1563
      return lcgid_tmp;
1564
  else
1565
      return MAX_NUM_LCGID;
1566 1567
}

1568
uint8_t get_bsr_len (module_id_t module_idP, uint16_t buflen) {
1569 1570

  int lcgid=0;
1571
  uint8_t bsr_len=0,  num_lcgid=0;
1572 1573
  int pdu = 0;

1574
  for (lcgid=0; lcgid < MAX_NUM_LCGID; lcgid++ ) {
1575 1576 1577 1578 1579 1580 1581 1582 1583 1584 1585
      if (UE_mac_inst[module_idP].scheduling_info.BSR_bytes[lcgid] > 0 )
        pdu += (UE_mac_inst[module_idP].scheduling_info.BSR_bytes[lcgid] +  bsr_len + 2); //2 = sizeof(SCH_SUBHEADER_SHORT)
      if (UE_mac_inst[module_idP].scheduling_info.BSR_bytes[lcgid] > 128 ) // long header size: adjust the header size
          pdu += 1;
      // current phy buff can not transport all sdu for this lcgid -> transmit a bsr for this lcgid

      if ( (pdu > buflen) &&  (UE_mac_inst[module_idP].scheduling_info.BSR_bytes[lcgid] > 0 ) ){
          num_lcgid +=1;
          bsr_len = (num_lcgid >= 2 ) ? sizeof(BSR_LONG) :  sizeof(BSR_SHORT) ;
      }
      LOG_D(MAC,"BSR Bytes %d for lcgid %d bsr len %d num lcgid %d\n", UE_mac_inst[module_idP].scheduling_info.BSR_bytes[lcgid], lcgid, bsr_len, num_lcgid);
1586 1587
  }
  if ( bsr_len > 0 )
1588
    LOG_D(MAC,"[UE %d] Prepare a %s (Transport Block Size %d, MAC pdu Size %d) \n",
1589
        module_idP, map_int_to_str(BSR_names, bsr_len), buflen, pdu);
1590 1591 1592 1593
  return bsr_len;
}


1594
boolean_t  update_bsr(module_id_t module_idP, frame_t frameP, uint8_t lcid, uint8_t lcg_id){
1595 1596

  mac_rlc_status_resp_t rlc_status;
Lionel Gauthier's avatar
Lionel Gauthier committed
1597
  boolean_t sr_pending = FALSE;
1598 1599
  if ((lcg_id < 0) || (lcg_id > MAX_NUM_LCGID) )
    return sr_pending;
1600
  // fixme: need a better way to reset
1601
  if ((lcid == DCCH) || (lcid == DTCH)){
1602 1603
      UE_mac_inst[module_idP].scheduling_info.BSR[lcg_id]=0;
      UE_mac_inst[module_idP].scheduling_info.BSR_bytes[lcg_id]=0;
1604
  }
1605
  //  for (lcid =0 ; lcid < MAX_NUM_LCID; lcid++) {
1606
  if (UE_mac_inst[module_idP].scheduling_info.LCGID[lcid] == lcg_id) {
Lionel Gauthier's avatar
Lionel Gauthier committed
1607
      rlc_status = mac_rlc_status_ind(0, module_idP,frameP,ENB_FLAG_NO,MBMS_FLAG_NO,
1608 1609 1610
          lcid,
          0);
      if (rlc_status.bytes_in_buffer > 0 ) {
Lionel Gauthier's avatar
Lionel Gauthier committed
1611
          sr_pending = TRUE;
1612 1613 1614 1615 1616 1617 1618 1619 1620
          UE_mac_inst[module_idP].scheduling_info.LCID_status[lcid] = LCID_NOT_EMPTY;
          UE_mac_inst[module_idP].scheduling_info.BSR[lcg_id] += locate (BSR_TABLE,BSR_TABLE_SIZE, rlc_status.bytes_in_buffer);
          UE_mac_inst[module_idP].scheduling_info.BSR_bytes[lcg_id] += rlc_status.bytes_in_buffer;
          // UE_mac_inst[module_idP].scheduling_info.BSR_short_lcid = lcid; // only applicable to short bsr
          LOG_D(MAC,"[UE %d] BSR level %d (LCGID %d, rlc buffer %d byte)\n",
              module_idP, UE_mac_inst[module_idP].scheduling_info.BSR[lcg_id],lcg_id,  UE_mac_inst[module_idP].scheduling_info.BSR_bytes[lcg_id]);
      }
      else
        UE_mac_inst[module_idP].scheduling_info.LCID_status[lcid]=LCID_EMPTY;
1621 1622 1623 1624 1625
  }
  //}
  return sr_pending;
}

1626
uint8_t locate (const uint32_t *table, int size, int value){
1627

1628
  uint8_t ju, jm, jl;
1629 1630 1631 1632 1633 1634 1635 1636 1637
  int ascend;

  if (value == 0) return 0; //elseif (value > 150000) return 63;

  jl = 0;      // lower bound
  ju = size  ;// upper bound
  ascend = (table[ju] >= table[jl]) ? 1 : 0; // determine the order of the the table:  1 if ascending order of table, 0 otherwise

  while (ju-jl > 1) { //If we are not yet done,
1638 1639 1640 1641 1642 1643
      jm = (ju+jl) >> 1; //compute a midpoint,
      if ((value >= table[jm]) == ascend)
        jl=jm; // replace the lower limit
      else
        ju=jm; //replace the upper limit
      LOG_T(MAC,"[UE] searching BSR index %d for (BSR TABLE %d < value %d)\n", jm, table[jm], value);
1644 1645 1646 1647 1648 1649
  }
  if (value == table[jl]) return jl;
  else                    return jl+1; //equally  ju

}

1650
int get_sf_periodicBSRTimer(uint8_t sf_offset){
1651 1652 1653 1654 1655 1656 1657 1658 1659 1660 1661 1662 1663 1664 1665 1666 1667 1668 1669 1670 1671 1672 1673 1674 1675 1676 1677 1678 1679 1680 1681 1682 1683 1684 1685 1686 1687 1688 1689 1690 1691 1692 1693 1694 1695 1696 1697 1698 1699 1700 1701

  switch (sf_offset) {
  case MAC_MainConfig__ul_SCH_Config__periodicBSR_Timer_sf5:
    return 5;
    break;
  case MAC_MainConfig__ul_SCH_Config__periodicBSR_Timer_sf10:
    return 10;
    break;
  case MAC_MainConfig__ul_SCH_Config__periodicBSR_Timer_sf16:
    return 16;
    break;
  case MAC_MainConfig__ul_SCH_Config__periodicBSR_Timer_sf20:
    return 20;
    break;
  case MAC_MainConfig__ul_SCH_Config__periodicBSR_Timer_sf32:
    return 32;
    break;
  case MAC_MainConfig__ul_SCH_Config__periodicBSR_Timer_sf40:
    return 40;
    break;
  case MAC_MainConfig__ul_SCH_Config__periodicBSR_Timer_sf64:
    return 64;
    break;
  case MAC_MainConfig__ul_SCH_Config__periodicBSR_Timer_sf80:
    return 80;
    break;
  case MAC_MainConfig__ul_SCH_Config__periodicBSR_Timer_sf128:
    return 128;
    break;
  case MAC_MainConfig__ul_SCH_Config__periodicBSR_Timer_sf160:
    return 160;
    break;
  case MAC_MainConfig__ul_SCH_Config__periodicBSR_Timer_sf320:
    return 320;
    break;
  case MAC_MainConfig__ul_SCH_Config__periodicBSR_Timer_sf640:
    return 640;
    break;
  case MAC_MainConfig__ul_SCH_Config__periodicBSR_Timer_sf1280:
    return 1280;
    break;
  case MAC_MainConfig__ul_SCH_Config__periodicBSR_Timer_sf2560:
    return 2560;
    break;
  case MAC_MainConfig__ul_SCH_Config__periodicBSR_Timer_infinity:
  default:
    return -1;
    break;
  }
}

1702
int get_sf_retxBSRTimer(uint8_t sf_offset){
1703 1704 1705 1706 1707 1708 1709 1710 1711 1712 1713 1714 1715 1716 1717 1718 1719 1720 1721 1722 1723 1724 1725 1726 1727

  switch (sf_offset) {
  case MAC_MainConfig__ul_SCH_Config__retxBSR_Timer_sf320:
    return 320;
    break;
  case MAC_MainConfig__ul_SCH_Config__retxBSR_Timer_sf640:
    return 640;
    break;
  case MAC_MainConfig__ul_SCH_Config__retxBSR_Timer_sf1280:
    return 1280;
    break;
  case MAC_MainConfig__ul_SCH_Config__retxBSR_Timer_sf2560:
    return 2560;
    break;
  case MAC_MainConfig__ul_SCH_Config__retxBSR_Timer_sf5120:
    return 5120;
    break;
  case MAC_MainConfig__ul_SCH_Config__retxBSR_Timer_sf10240:
    return 10240;
    break;
  default:
    return -1;
    break;
  }
}
1728
int get_ms_bucketsizeduration(uint8_t bucketsizeduration){
1729 1730 1731 1732 1733 1734 1735 1736 1737 1738 1739 1740 1741 1742 1743 1744 1745 1746 1747 1748 1749 1750 1751 1752 1753 1754

  switch (bucketsizeduration) {
  case LogicalChannelConfig__ul_SpecificParameters__bucketSizeDuration_ms50:
    return 50;
    break;
  case LogicalChannelConfig__ul_SpecificParameters__bucketSizeDuration_ms100:
    return 100;
    break;
  case LogicalChannelConfig__ul_SpecificParameters__bucketSizeDuration_ms150:
    return 150;
    break;
  case LogicalChannelConfig__ul_SpecificParameters__bucketSizeDuration_ms300:
    return 300;
    break;
  case LogicalChannelConfig__ul_SpecificParameters__bucketSizeDuration_ms500:
    return 500;
    break;
  case LogicalChannelConfig__ul_SpecificParameters__bucketSizeDuration_ms1000:
    return 1000;
    break;
  default:
    return 0;
    break;
  }
}

1755 1756 1757 1758 1759 1760
void update_phr(module_id_t module_idP){

  UE_mac_inst[module_idP].PHR_reporting_active =0;
  UE_mac_inst[module_idP].scheduling_info.periodicPHR_SF =  get_sf_perioidicPHR_Timer(UE_mac_inst[module_idP].scheduling_info.periodicPHR_Timer);
  UE_mac_inst[module_idP].scheduling_info.prohibitPHR_SF =  get_sf_prohibitPHR_Timer(UE_mac_inst[module_idP].scheduling_info.prohibitPHR_Timer);
  // LOG_D(MAC,"phr %d %d\n ",UE_mac_inst[module_idP].scheduling_info.periodicPHR_SF, UE_mac_inst[module_idP].scheduling_info.prohibitPHR_SF);
1761
}
1762
uint8_t get_phr_mapping (module_id_t module_idP, uint8_t eNB_index){
1763

1764 1765 1766
  //power headroom reporting range is from -23 ...+40 dB, as described in 36313
  //note: mac_xface->get_Po_NOMINAL_PUSCH(module_idP) is float
  if (mac_xface->get_PHR(module_idP,eNB_index) < -23)
1767
    return 0;
1768
  else if (mac_xface->get_PHR(module_idP,eNB_index) >= 40)
1769
    return 63;
1770
  else  // -23 to 40
1771
    return  (uint8_t) mac_xface->get_PHR(module_idP,eNB_index) + PHR_MAPPING_OFFSET;
1772

1773
}
1774
int get_sf_perioidicPHR_Timer(uint8_t perioidicPHR_Timer){
1775 1776 1777 1778
  return (perioidicPHR_Timer+1)*10;
}


1779
int get_sf_prohibitPHR_Timer(uint8_t prohibitPHR_Timer){
1780 1781 1782
  return (prohibitPHR_Timer)*10;
}

1783
int get_db_dl_PathlossChange(uint8_t dl_PathlossChange){
1784 1785 1786 1787 1788 1789 1790 1791 1792 1793 1794 1795 1796 1797 1798 1799
  switch (dl_PathlossChange){
  case MAC_MainConfig__phr_Config__setup__dl_PathlossChange_dB1:
    return 1;
    break;
  case MAC_MainConfig__phr_Config__setup__dl_PathlossChange_dB3:
    return 3;
    break;
  case MAC_MainConfig__phr_Config__setup__dl_PathlossChange_dB6:
    return 6;
    break;
  case MAC_MainConfig__phr_Config__setup__dl_PathlossChange_infinity:
  default:
    return -1;
    break;
  }
}