"openair1/PHY/LTE_TRANSPORT/transport_eNB.h" did not exist on "c1dae3d38ff8a9d9178cf9c856e404eae3f43fe4"
eNB_scheduler_fairRR.c 132 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 28 29 30 31 32 33 34 35
/*
 * Licensed to the OpenAirInterface (OAI) Software Alliance under one or more
 * contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The OpenAirInterface Software Alliance licenses this file to You under
 * the OAI Public License, Version 1.1  (the "License"); you may not use this file
 * except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.openairinterface.org/?page_id=698
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 *-------------------------------------------------------------------------------
 * For more information about the OpenAirInterface (OAI) Software Alliance:
 *      contact@openairinterface.org
 */

/*! \file eNB_scheduler_fairRR.h
 * \brief eNB scheduler fair round robin
 * \author Masayuki Harada
 * \date 2018
 * \email masayuki.harada@jp.fujitsu.com
 * \version 1.0
 * @ingroup _mac
 */

#define _GNU_SOURCE
#include <stdlib.h>

#include "assertions.h"

36
#include "PHY/phy_extern.h"
37 38
#include "PHY/LTE_TRANSPORT/transport_common_proto.h"
#include "SIMULATION/TOOLS/sim.h"
39 40
#include "LAYER2/MAC/mac_proto.h"
#include "LAYER2/MAC/mac_extern.h"
41
#include "LAYER2/MAC/eNB_scheduler_fairRR.h"
42 43
#include "common/utils/LOG/log.h"
#include "common/utils/LOG/vcd_signal_dumper.h"
44 45 46 47 48 49 50 51 52 53
#include "UTIL/OPT/opt.h"
#include "OCG.h"
#include "OCG_extern.h"
#include "RRC/L2_INTERFACE/openair_rrc_L2_interface.h"
#include "rlc.h"

#include "T.h"

extern uint8_t nfapi_mode;
#ifdef PHY_TX_THREAD
Louis Adrien Dufrene's avatar
Louis Adrien Dufrene committed
54 55
  extern volatile int16_t phy_tx_txdataF_end;
  extern int oai_exit;
56
#endif
57 58 59
extern uint16_t sfnsf_add_subframe(uint16_t frameP, uint16_t subframeP, int offset);
extern void add_subframe(uint16_t *frameP, uint16_t *subframeP, int offset);

60 61 62 63 64 65
/* internal vars */
DLSCH_UE_SELECT dlsch_ue_select[MAX_NUM_CCs];
int last_dlsch_ue_id[MAX_NUM_CCs] = {-1};
int last_ulsch_ue_id[MAX_NUM_CCs] = {-1};

#if defined(PRE_SCD_THREAD)
Louis Adrien Dufrene's avatar
Louis Adrien Dufrene committed
66 67 68 69 70
  uint16_t pre_nb_rbs_required[2][MAX_NUM_CCs][NUMBER_OF_UE_MAX];
  uint8_t dlsch_ue_select_tbl_in_use;
  uint8_t new_dlsch_ue_select_tbl_in_use;
  boolean_t pre_scd_activeUE[NUMBER_OF_UE_MAX];
  eNB_UE_STATS pre_scd_eNB_UE_stats[MAX_NUM_CCs][NUMBER_OF_UE_MAX];
71 72 73 74 75 76
#endif

#define DEBUG_eNB_SCHEDULER 1
#define DEBUG_HEADER_PARSING 1
//#define DEBUG_PACKET_TRACE 1

77 78 79 80 81 82 83 84 85
void set_dl_ue_select_msg2(int CC_idP, uint16_t nb_rb, int UE_id, rnti_t rnti) {
  dlsch_ue_select[CC_idP].list[dlsch_ue_select[CC_idP].ue_num].ue_priority = SCH_DL_MSG2;
  dlsch_ue_select[CC_idP].list[dlsch_ue_select[CC_idP].ue_num].nb_rb = nb_rb;
  dlsch_ue_select[CC_idP].list[dlsch_ue_select[CC_idP].ue_num].UE_id = UE_id;
  dlsch_ue_select[CC_idP].list[dlsch_ue_select[CC_idP].ue_num].rnti = rnti;
  dlsch_ue_select[CC_idP].ue_num++;
}
void set_dl_ue_select_msg4(int CC_idP, uint16_t nb_rb, int UE_id, rnti_t rnti) {
  dlsch_ue_select[CC_idP].list[dlsch_ue_select[CC_idP].ue_num].ue_priority = SCH_DL_MSG4;
86 87 88 89 90 91
  dlsch_ue_select[CC_idP].list[dlsch_ue_select[CC_idP].ue_num].nb_rb = nb_rb;
  dlsch_ue_select[CC_idP].list[dlsch_ue_select[CC_idP].ue_num].UE_id = UE_id;
  dlsch_ue_select[CC_idP].list[dlsch_ue_select[CC_idP].ue_num].rnti = rnti;
  dlsch_ue_select[CC_idP].ue_num++;
}
#if defined(PRE_SCD_THREAD)
Louis Adrien Dufrene's avatar
Louis Adrien Dufrene committed
92
inline uint16_t search_rbs_required(uint16_t mcs, uint16_t TBS,uint16_t NB_RB, uint16_t step_size) {
93 94
  uint16_t nb_rb,i_TBS,tmp_TBS;
  i_TBS=get_I_TBS(mcs);
Louis Adrien Dufrene's avatar
Louis Adrien Dufrene committed
95 96

  for(nb_rb=step_size; nb_rb<NB_RB; nb_rb+=step_size) {
97
    tmp_TBS = TBStable[i_TBS][nb_rb-1]>>3;
Louis Adrien Dufrene's avatar
Louis Adrien Dufrene committed
98

99 100
    if(TBS<tmp_TBS)return(nb_rb);
  }
Louis Adrien Dufrene's avatar
Louis Adrien Dufrene committed
101

102 103 104 105 106 107
  return NB_RB;
}
void pre_scd_nb_rbs_required(    module_id_t     module_idP,
                                 frame_t         frameP,
                                 sub_frame_t     subframeP,
                                 int             min_rb_unit[MAX_NUM_CCs],
Louis Adrien Dufrene's avatar
Louis Adrien Dufrene committed
108 109 110 111 112 113 114 115
                                 uint16_t        nb_rbs_required[MAX_NUM_CCs][NUMBER_OF_UE_MAX]) {
  int                          CC_id=0,UE_id, lc_id, N_RB_DL;
  UE_TEMPLATE                  UE_template;
  eNB_UE_STATS                 *eNB_UE_stats;
  rnti_t                       rnti;
  mac_rlc_status_resp_t        rlc_status;
  uint16_t                     step_size=2;
  N_RB_DL = to_prb(RC.mac[module_idP]->common_channels[CC_id].mib->message.dl_Bandwidth);
116

Louis Adrien Dufrene's avatar
Louis Adrien Dufrene committed
117
  if(N_RB_DL==50) step_size=3;
118

Louis Adrien Dufrene's avatar
Louis Adrien Dufrene committed
119
  if(N_RB_DL==100) step_size=4;
120

Louis Adrien Dufrene's avatar
Louis Adrien Dufrene committed
121 122
  memset(nb_rbs_required, 0, sizeof(uint16_t)*MAX_NUM_CCs*NUMBER_OF_UE_MAX);
  UE_list_t *UE_list = &RC.mac[module_idP]->UE_list;
123

Louis Adrien Dufrene's avatar
Louis Adrien Dufrene committed
124 125 126
  for (UE_id = 0; UE_id <NUMBER_OF_UE_MAX; UE_id++) {
    if (pre_scd_activeUE[UE_id] != TRUE)
      continue;
127

Louis Adrien Dufrene's avatar
Louis Adrien Dufrene committed
128 129 130 131
    // store dlsch buffer
    // clear logical channel interface variables
    UE_template.dl_buffer_total = 0;
    rnti = UE_RNTI(module_idP, UE_id);
132

Louis Adrien Dufrene's avatar
Louis Adrien Dufrene committed
133 134 135 136 137 138 139 140 141 142
    for (lc_id = DCCH; lc_id <= DTCH; lc_id++) {
      rlc_status =
        mac_rlc_status_ind(module_idP, rnti, module_idP, frameP, subframeP,
                           ENB_FLAG_YES, MBMS_FLAG_NO, lc_id, 0
#if (LTE_RRC_VERSION >= MAKE_VERSION(14, 0, 0))
                           ,0, 0
#endif
                          );
      UE_template.dl_buffer_total += rlc_status.bytes_in_buffer; //storing the total dlsch buffer
    }
143

Louis Adrien Dufrene's avatar
Louis Adrien Dufrene committed
144 145 146 147 148 149
    // end of store dlsch buffer
    // assgin rbs required
    // Calculate the number of RBs required by each UE on the basis of logical channel's buffer
    //update CQI information across component carriers
    eNB_UE_stats = &pre_scd_eNB_UE_stats[CC_id][UE_id];
    eNB_UE_stats->dlsch_mcs1 = cqi_to_mcs[UE_list->UE_sched_ctrl[UE_id].dl_cqi[CC_id]];
150

Louis Adrien Dufrene's avatar
Louis Adrien Dufrene committed
151 152
    if (UE_template.dl_buffer_total > 0) {
      nb_rbs_required[CC_id][UE_id] = search_rbs_required(eNB_UE_stats->dlsch_mcs1, UE_template.dl_buffer_total, N_RB_DL, step_size);
153
    }
Louis Adrien Dufrene's avatar
Louis Adrien Dufrene committed
154
  }
155 156 157
}
#endif

Louis Adrien Dufrene's avatar
Louis Adrien Dufrene committed
158
int cc_id_end(uint8_t *cc_id_flag ) {
159
  int end_flag = 1;
Louis Adrien Dufrene's avatar
Louis Adrien Dufrene committed
160 161

  for (int CC_id=0; CC_id<MAX_NUM_CCs; CC_id++) {
162 163 164 165 166
    if (cc_id_flag[CC_id]==0) {
      end_flag = 0;
      break;
    }
  }
Louis Adrien Dufrene's avatar
Louis Adrien Dufrene committed
167

168 169 170 171
  return end_flag;
}

void dlsch_scheduler_pre_ue_select_fairRR(
Louis Adrien Dufrene's avatar
Louis Adrien Dufrene committed
172 173 174 175 176 177
  module_id_t     module_idP,
  frame_t         frameP,
  sub_frame_t     subframeP,
  int            *mbsfn_flag,
  uint16_t        nb_rbs_required[MAX_NUM_CCs][NUMBER_OF_UE_MAX],
  DLSCH_UE_SELECT dlsch_ue_select[MAX_NUM_CCs]) {
178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210
  eNB_MAC_INST                   *eNB      = RC.mac[module_idP];
  COMMON_channels_t              *cc       = eNB->common_channels;
  UE_list_t                      *UE_list  = &eNB->UE_list;
  UE_sched_ctrl                  *ue_sched_ctl;
  uint8_t                        CC_id;
  int                            UE_id;
  unsigned char                  round             = 0;
  unsigned char                  harq_pid          = 0;
  rnti_t                         rnti;
  uint16_t                       i;
  unsigned char                  aggregation;
  int                            format_flag;
  nfapi_dl_config_request_body_t *DL_req;
  nfapi_dl_config_request_pdu_t  *dl_config_pdu;
  uint16_t                       dlsch_ue_max_num[MAX_NUM_CCs] = {0};
  uint16_t                       saved_dlsch_dci[MAX_NUM_CCs] = {0};
  uint8_t                        end_flag[MAX_NUM_CCs] = {0};

  // Initialization
  for (CC_id = 0; CC_id < MAX_NUM_CCs; CC_id++) {
    dlsch_ue_max_num[CC_id] = (uint16_t)RC.rrc[module_idP]->configuration.ue_multiple_max[CC_id];
    // save origin DL PDU number
    DL_req          = &eNB->DL_req[CC_id].dl_config_request_body;
    saved_dlsch_dci[CC_id] = DL_req->number_pdu;
  }

  // Insert DLSCH(retransmission) UE into selected UE list
  for (CC_id = 0; CC_id < MAX_NUM_CCs; CC_id++) {
    if (mbsfn_flag[CC_id]>0) {
      continue;
    }

    DL_req          = &eNB->DL_req[CC_id].dl_config_request_body;
Louis Adrien Dufrene's avatar
Louis Adrien Dufrene committed
211

212 213 214 215 216 217
    for (UE_id = 0; UE_id < NUMBER_OF_UE_MAX; UE_id++) {
      if (UE_list->active[UE_id] == FALSE) {
        continue;
      }

      rnti = UE_RNTI(module_idP, UE_id);
Louis Adrien Dufrene's avatar
Louis Adrien Dufrene committed
218

219 220 221 222
      if (rnti == NOT_A_RNTI) {
        continue;
      }

Louis Adrien Dufrene's avatar
Louis Adrien Dufrene committed
223
      if(mac_eNB_get_rrc_status(module_idP,rnti) < RRC_CONNECTED) {
224 225 226 227
        continue;
      }

      ue_sched_ctl = &UE_list->UE_sched_ctrl[UE_id];
Louis Adrien Dufrene's avatar
Louis Adrien Dufrene committed
228
      harq_pid = frame_subframe2_dl_harq_pid(cc[CC_id].tdd_Config,frameP,subframeP);
229
      round = ue_sched_ctl->round[CC_id][harq_pid];
Louis Adrien Dufrene's avatar
Louis Adrien Dufrene committed
230

231
      if (round != 8) {  // retransmission
Louis Adrien Dufrene's avatar
Louis Adrien Dufrene committed
232
        if(UE_list->UE_template[CC_id][UE_id].nb_rb[harq_pid] == 0) {
233 234
          continue;
        }
Louis Adrien Dufrene's avatar
Louis Adrien Dufrene committed
235

236 237 238 239 240
        switch (get_tmode(module_idP, CC_id, UE_id)) {
          case 1:
          case 2:
          case 7:
            aggregation = get_aggregation(get_bw_index(module_idP, CC_id),
Louis Adrien Dufrene's avatar
Louis Adrien Dufrene committed
241 242
                                          ue_sched_ctl->dl_cqi[CC_id],
                                          format1);
243
            break;
Louis Adrien Dufrene's avatar
Louis Adrien Dufrene committed
244

245 246
          case 3:
            aggregation = get_aggregation(get_bw_index(module_idP,CC_id),
Louis Adrien Dufrene's avatar
Louis Adrien Dufrene committed
247 248
                                          ue_sched_ctl->dl_cqi[CC_id],
                                          format2A);
249
            break;
Louis Adrien Dufrene's avatar
Louis Adrien Dufrene committed
250

251 252 253 254 255
          default:
            LOG_W(MAC,"Unsupported transmission mode %d\n", get_tmode(module_idP,CC_id,UE_id));
            aggregation = 2;
            break;
        }
Louis Adrien Dufrene's avatar
Louis Adrien Dufrene committed
256

257
        format_flag = 1;
Louis Adrien Dufrene's avatar
Louis Adrien Dufrene committed
258

259
        if (!CCE_allocation_infeasible(module_idP,
Louis Adrien Dufrene's avatar
Louis Adrien Dufrene committed
260 261 262 263 264
                                       CC_id,
                                       format_flag,
                                       subframeP,
                                       aggregation,
                                       rnti)) {
265 266 267 268 269 270 271 272 273 274 275 276 277
          dl_config_pdu = &DL_req->dl_config_pdu_list[DL_req->number_pdu];
          dl_config_pdu->pdu_type                                     = NFAPI_DL_CONFIG_DCI_DL_PDU_TYPE;
          dl_config_pdu->dci_dl_pdu.dci_dl_pdu_rel8.rnti              = rnti;
          dl_config_pdu->dci_dl_pdu.dci_dl_pdu_rel8.rnti_type         = (format_flag == 0)?2:1;
          dl_config_pdu->dci_dl_pdu.dci_dl_pdu_rel8.aggregation_level = aggregation;
          DL_req->number_pdu++;
          nb_rbs_required[CC_id][UE_id] = UE_list->UE_template[CC_id][UE_id].nb_rb[harq_pid];
          // Insert DLSCH(retransmission) UE into selected UE list
          dlsch_ue_select[CC_id].list[dlsch_ue_select[CC_id].ue_num].UE_id = UE_id;
          dlsch_ue_select[CC_id].list[dlsch_ue_select[CC_id].ue_num].ue_priority = SCH_DL_RETRANS;
          dlsch_ue_select[CC_id].list[dlsch_ue_select[CC_id].ue_num].rnti = rnti;
          dlsch_ue_select[CC_id].list[dlsch_ue_select[CC_id].ue_num].nb_rb = nb_rbs_required[CC_id][UE_id];
          dlsch_ue_select[CC_id].ue_num++;
Louis Adrien Dufrene's avatar
Louis Adrien Dufrene committed
278

279 280 281 282 283 284 285
          if (dlsch_ue_select[CC_id].ue_num == dlsch_ue_max_num[CC_id]) {
            end_flag[CC_id] = 1;
            break;
          }
        } else {
          if (cc[CC_id].tdd_Config != NULL) { //TDD
            set_ue_dai (subframeP,
Louis Adrien Dufrene's avatar
Louis Adrien Dufrene committed
286 287 288 289
                        UE_id,
                        CC_id,
                        cc[CC_id].tdd_Config->subframeAssignment,
                        UE_list);
290 291 292 293 294 295 296 297 298 299 300 301 302 303 304
            // update UL DAI after DLSCH scheduling
            set_ul_DAI(module_idP,UE_id,CC_id,frameP,subframeP);
          }

          add_ue_dlsch_info(module_idP,
                            CC_id,
                            UE_id,
                            subframeP,
                            S_DL_NONE);
          end_flag[CC_id] = 1;
          break;
        }
      }
    }
  }
Louis Adrien Dufrene's avatar
Louis Adrien Dufrene committed
305 306

  if(cc_id_end(end_flag) == 1) {
307 308 309 310
    for (CC_id = 0; CC_id < MAX_NUM_CCs; CC_id++) {
      DL_req          = &eNB->DL_req[CC_id].dl_config_request_body;
      DL_req->number_pdu = saved_dlsch_dci[CC_id];
    }
Louis Adrien Dufrene's avatar
Louis Adrien Dufrene committed
311

312 313 314 315 316
    return;
  }

  // Insert DLSCH(first transmission) UE into selected UE list (UE_id > last_dlsch_ue_id[CC_id])
  for (CC_id = 0; CC_id < MAX_NUM_CCs; CC_id++) {
Louis Adrien Dufrene's avatar
Louis Adrien Dufrene committed
317 318 319 320 321 322 323 324 325 326 327 328
    if (mbsfn_flag[CC_id]>0) {
      continue;
    }

    DL_req          = &eNB->DL_req[CC_id].dl_config_request_body;

    for (UE_id = (last_dlsch_ue_id[CC_id]+1); UE_id <NUMBER_OF_UE_MAX; UE_id++) {
      if(end_flag[CC_id] == 1) {
        break;
      }

      if (UE_list->active[UE_id] == FALSE) {
329 330 331
        continue;
      }

Louis Adrien Dufrene's avatar
Louis Adrien Dufrene committed
332 333 334 335 336 337 338 339 340 341 342 343 344
      rnti = UE_RNTI(module_idP,UE_id);

      if (rnti == NOT_A_RNTI)
        continue;

      if(mac_eNB_get_rrc_status(module_idP,rnti) < RRC_CONNECTED) {
        continue;
      }

      ue_sched_ctl = &UE_list->UE_sched_ctrl[UE_id];

      for(i = 0; i<dlsch_ue_select[CC_id].ue_num; i++) {
        if(dlsch_ue_select[CC_id].list[i].UE_id == UE_id) {
345 346
          break;
        }
Louis Adrien Dufrene's avatar
Louis Adrien Dufrene committed
347
      }
348

Louis Adrien Dufrene's avatar
Louis Adrien Dufrene committed
349 350
      if(i < dlsch_ue_select[CC_id].ue_num)
        continue;
351

Louis Adrien Dufrene's avatar
Louis Adrien Dufrene committed
352 353
      harq_pid = frame_subframe2_dl_harq_pid(cc[CC_id].tdd_Config,frameP,subframeP);
      round = ue_sched_ctl->round[CC_id][harq_pid];
354

Louis Adrien Dufrene's avatar
Louis Adrien Dufrene committed
355 356
      if (round == 8) {
        if (nb_rbs_required[CC_id][UE_id] == 0) {
357 358 359
          continue;
        }

Louis Adrien Dufrene's avatar
Louis Adrien Dufrene committed
360 361 362 363 364 365 366 367 368 369 370 371 372 373 374 375 376 377 378
        switch (get_tmode(module_idP, CC_id, UE_id)) {
          case 1:
          case 2:
          case 7:
            aggregation = get_aggregation(get_bw_index(module_idP, CC_id),
                                          ue_sched_ctl->dl_cqi[CC_id],
                                          format1);
            break;

          case 3:
            aggregation = get_aggregation(get_bw_index(module_idP,CC_id),
                                          ue_sched_ctl->dl_cqi[CC_id],
                                          format2A);
            break;

          default:
            LOG_W(MAC,"Unsupported transmission mode %d\n", get_tmode(module_idP,CC_id,UE_id));
            aggregation = 2;
            break;
379 380
        }

Louis Adrien Dufrene's avatar
Louis Adrien Dufrene committed
381
        format_flag = 1;
382

Louis Adrien Dufrene's avatar
Louis Adrien Dufrene committed
383 384 385 386 387 388 389 390 391 392 393 394 395 396 397 398 399 400
        if (!CCE_allocation_infeasible(module_idP,
                                       CC_id,
                                       format_flag,
                                       subframeP,
                                       aggregation,
                                       rnti)) {
          dl_config_pdu = &DL_req->dl_config_pdu_list[DL_req->number_pdu];
          dl_config_pdu->pdu_type                                     = NFAPI_DL_CONFIG_DCI_DL_PDU_TYPE;
          dl_config_pdu->dci_dl_pdu.dci_dl_pdu_rel8.rnti              = rnti;
          dl_config_pdu->dci_dl_pdu.dci_dl_pdu_rel8.rnti_type         = (format_flag == 0)?2:1;
          dl_config_pdu->dci_dl_pdu.dci_dl_pdu_rel8.aggregation_level = aggregation;
          DL_req->number_pdu++;
          // Insert DLSCH(first transmission) UE into selected selected UE list
          dlsch_ue_select[CC_id].list[dlsch_ue_select[CC_id].ue_num].ue_priority = SCH_DL_FIRST;
          dlsch_ue_select[CC_id].list[dlsch_ue_select[CC_id].ue_num].nb_rb = nb_rbs_required[CC_id][UE_id];
          dlsch_ue_select[CC_id].list[dlsch_ue_select[CC_id].ue_num].UE_id = UE_id;
          dlsch_ue_select[CC_id].list[dlsch_ue_select[CC_id].ue_num].rnti = rnti;
          dlsch_ue_select[CC_id].ue_num++;
401 402

          if (dlsch_ue_select[CC_id].ue_num == dlsch_ue_max_num[CC_id]) {
Louis Adrien Dufrene's avatar
Louis Adrien Dufrene committed
403 404 405 406 407 408 409 410 411 412 413 414 415 416 417
            end_flag[CC_id] = 1;
            break;
          }
        } else {
          if (cc[CC_id].tdd_Config != NULL) { //TDD
            set_ue_dai (subframeP,
                        UE_id,
                        CC_id,
                        cc[CC_id].tdd_Config->subframeAssignment,
                        UE_list);
            // update UL DAI after DLSCH scheduling
            set_ul_DAI(module_idP,UE_id,CC_id,frameP,subframeP);
          }

          add_ue_dlsch_info(module_idP,
418 419 420 421
                            CC_id,
                            UE_id,
                            subframeP,
                            S_DL_NONE);
Louis Adrien Dufrene's avatar
Louis Adrien Dufrene committed
422 423 424
          end_flag[CC_id] = 1;
          break;
        }
425 426 427
      }
    }
  }
Louis Adrien Dufrene's avatar
Louis Adrien Dufrene committed
428 429

  if(cc_id_end(end_flag) == 1) {
430 431 432 433
    for (CC_id = 0; CC_id < MAX_NUM_CCs; CC_id++) {
      DL_req          = &eNB->DL_req[CC_id].dl_config_request_body;
      DL_req->number_pdu = saved_dlsch_dci[CC_id];
    }
Louis Adrien Dufrene's avatar
Louis Adrien Dufrene committed
434

435 436 437 438 439
    return;
  }

  // Insert DLSCH(first transmission) UE into selected UE list (UE_id <= last_dlsch_ue_id[CC_id])
  for (CC_id = 0; CC_id < MAX_NUM_CCs; CC_id++) {
Louis Adrien Dufrene's avatar
Louis Adrien Dufrene committed
440 441 442 443 444 445 446 447 448 449 450 451
    if (mbsfn_flag[CC_id]>0) {
      continue;
    }

    DL_req          = &eNB->DL_req[CC_id].dl_config_request_body;

    for (UE_id = 0; UE_id <= last_dlsch_ue_id[CC_id]; UE_id++) {
      if(end_flag[CC_id] == 1) {
        break;
      }

      if (UE_list->active[UE_id] == FALSE) {
452 453 454
        continue;
      }

Louis Adrien Dufrene's avatar
Louis Adrien Dufrene committed
455 456 457 458 459 460 461 462 463 464 465 466 467
      rnti = UE_RNTI(module_idP,UE_id);

      if (rnti == NOT_A_RNTI)
        continue;

      if(mac_eNB_get_rrc_status(module_idP,rnti) < RRC_CONNECTED) {
        continue;
      }

      ue_sched_ctl = &UE_list->UE_sched_ctrl[UE_id];

      for(i = 0; i<dlsch_ue_select[CC_id].ue_num; i++) {
        if(dlsch_ue_select[CC_id].list[i].UE_id == UE_id) {
468 469
          break;
        }
Louis Adrien Dufrene's avatar
Louis Adrien Dufrene committed
470
      }
471

Louis Adrien Dufrene's avatar
Louis Adrien Dufrene committed
472 473
      if(i < dlsch_ue_select[CC_id].ue_num)
        continue;
474

Louis Adrien Dufrene's avatar
Louis Adrien Dufrene committed
475 476
      harq_pid = frame_subframe2_dl_harq_pid(cc[CC_id].tdd_Config,frameP,subframeP);
      round = ue_sched_ctl->round[CC_id][harq_pid];
477

Louis Adrien Dufrene's avatar
Louis Adrien Dufrene committed
478 479
      if (round == 8) {
        if (nb_rbs_required[CC_id][UE_id] == 0) {
480 481 482
          continue;
        }

Louis Adrien Dufrene's avatar
Louis Adrien Dufrene committed
483 484 485 486 487 488 489 490 491 492 493 494 495 496 497 498 499 500 501
        switch (get_tmode(module_idP, CC_id, UE_id)) {
          case 1:
          case 2:
          case 7:
            aggregation = get_aggregation(get_bw_index(module_idP, CC_id),
                                          ue_sched_ctl->dl_cqi[CC_id],
                                          format1);
            break;

          case 3:
            aggregation = get_aggregation(get_bw_index(module_idP,CC_id),
                                          ue_sched_ctl->dl_cqi[CC_id],
                                          format2A);
            break;

          default:
            LOG_W(MAC,"Unsupported transmission mode %d\n", get_tmode(module_idP,CC_id,UE_id));
            aggregation = 2;
            break;
502 503
        }

Louis Adrien Dufrene's avatar
Louis Adrien Dufrene committed
504 505 506 507 508 509 510 511 512 513 514 515 516 517 518 519 520 521 522 523 524 525 526 527 528 529 530 531 532 533 534 535 536 537 538
        format_flag = 1;

        if (!CCE_allocation_infeasible(module_idP,
                                       CC_id,
                                       format_flag,
                                       subframeP,
                                       aggregation,
                                       rnti)) {
          dl_config_pdu = &DL_req->dl_config_pdu_list[DL_req->number_pdu];
          dl_config_pdu->pdu_type                                     = NFAPI_DL_CONFIG_DCI_DL_PDU_TYPE;
          dl_config_pdu->dci_dl_pdu.dci_dl_pdu_rel8.rnti              = rnti;
          dl_config_pdu->dci_dl_pdu.dci_dl_pdu_rel8.rnti_type         = (format_flag == 0)?2:1;
          dl_config_pdu->dci_dl_pdu.dci_dl_pdu_rel8.aggregation_level = aggregation;
          DL_req->number_pdu++;
          // Insert DLSCH(first transmission) UE into selected selected UE list
          dlsch_ue_select[CC_id].list[dlsch_ue_select[CC_id].ue_num].ue_priority = SCH_DL_FIRST;
          dlsch_ue_select[CC_id].list[dlsch_ue_select[CC_id].ue_num].nb_rb = nb_rbs_required[CC_id][UE_id];
          dlsch_ue_select[CC_id].list[dlsch_ue_select[CC_id].ue_num].UE_id = UE_id;
          dlsch_ue_select[CC_id].list[dlsch_ue_select[CC_id].ue_num].rnti = rnti;
          dlsch_ue_select[CC_id].ue_num++;

          if (dlsch_ue_select[CC_id].ue_num == dlsch_ue_max_num[CC_id]) {
            end_flag[CC_id] = 1;
            break;
          }
        } else {
          if (cc[CC_id].tdd_Config != NULL) { //TDD
            set_ue_dai (subframeP,
                        UE_id,
                        CC_id,
                        cc[CC_id].tdd_Config->subframeAssignment,
                        UE_list);
            // update UL DAI after DLSCH scheduling
            set_ul_DAI(module_idP,UE_id,CC_id,frameP,subframeP);
          }
539 540 541 542 543 544

          add_ue_dlsch_info(module_idP,
                            CC_id,
                            UE_id,
                            subframeP,
                            S_DL_NONE);
Louis Adrien Dufrene's avatar
Louis Adrien Dufrene committed
545 546 547
          end_flag[CC_id] = 1;
          break;
        }
548 549 550 551 552 553 554 555
      }
    }
  }

  for (CC_id = 0; CC_id < MAX_NUM_CCs; CC_id++) {
    DL_req          = &eNB->DL_req[CC_id].dl_config_request_body;
    DL_req->number_pdu = saved_dlsch_dci[CC_id];
  }
Louis Adrien Dufrene's avatar
Louis Adrien Dufrene committed
556

557 558 559 560 561 562 563
  return;
}



// This function assigns pre-available RBS to each UE in specified sub-bands before scheduling is done
void dlsch_scheduler_pre_processor_fairRR (module_id_t   Mod_id,
Louis Adrien Dufrene's avatar
Louis Adrien Dufrene committed
564 565 566 567
    frame_t       frameP,
    sub_frame_t   subframeP,
    int           N_RBG[MAX_NUM_CCs],
    int           *mbsfn_flag) {
568 569 570 571
  unsigned char rballoc_sub[MAX_NUM_CCs][N_RBG_MAX],harq_pid=0,Round=0;
  uint16_t                temp_total_rbs_count;
  unsigned char           temp_total_ue_count;
  unsigned char MIMO_mode_indicator[MAX_NUM_CCs][N_RBG_MAX];
572
  uint8_t slice_allocation[MAX_NUM_CCs][N_RBG_MAX];
Louis Adrien Dufrene's avatar
Louis Adrien Dufrene committed
573
  int                     UE_id, i;
574
  uint16_t                j,c;
575 576
  uint16_t                nb_rbs_required[MAX_NUM_CCs][NUMBER_OF_UE_MAX];
  uint16_t                nb_rbs_required_remaining[MAX_NUM_CCs][NUMBER_OF_UE_MAX];
Louis Adrien Dufrene's avatar
Louis Adrien Dufrene committed
577
  //  uint16_t                nb_rbs_required_remaining_1[MAX_NUM_CCs][NUMBER_OF_UE_MAX];
578 579 580
  uint16_t                average_rbs_per_user[MAX_NUM_CCs] = {0};
  rnti_t             rnti;
  int                min_rb_unit[MAX_NUM_CCs];
Louis Adrien Dufrene's avatar
Louis Adrien Dufrene committed
581
  //  uint16_t r1=0;
582 583 584 585 586 587
  uint8_t CC_id;
  UE_list_t *UE_list = &RC.mac[Mod_id]->UE_list;
  UE_sched_ctrl *ue_sched_ctl;
  //  int rrc_status           = RRC_IDLE;
  COMMON_channels_t *cc;
#ifdef TM5
Louis Adrien Dufrene's avatar
Louis Adrien Dufrene committed
588 589 590 591 592 593 594 595
  int harq_pid1 = 0;
  int round1 = 0, round2 = 0;
  int UE_id2;
  uint16_t i1, i2, i3;
  rnti_t rnti1, rnti2;
  LTE_eNB_UE_stats *eNB_UE_stats1 = NULL;
  LTE_eNB_UE_stats *eNB_UE_stats2 = NULL;
  UE_sched_ctrl *ue_sched_ctl1, *ue_sched_ctl2;
596
#endif
597
  memset(min_rb_unit,0,sizeof(min_rb_unit));
598

Louis Adrien Dufrene's avatar
Louis Adrien Dufrene committed
599 600 601
  for (CC_id=0; CC_id<MAX_NUM_CCs; CC_id++) {
    if (mbsfn_flag[CC_id] > 0)  // If this CC is allocated for MBSFN skip it here
      continue;
602

Louis Adrien Dufrene's avatar
Louis Adrien Dufrene committed
603
    min_rb_unit[CC_id] = get_min_rb_unit(Mod_id, CC_id);
604

Louis Adrien Dufrene's avatar
Louis Adrien Dufrene committed
605 606 607
    for (i = 0; i < NUMBER_OF_UE_MAX; i++) {
      if (UE_list->active[i] != TRUE)
        continue;
608

Louis Adrien Dufrene's avatar
Louis Adrien Dufrene committed
609 610 611 612 613 614 615 616 617 618 619
      UE_id = i;
      // Initialize scheduling information for all active UEs
      dlsch_scheduler_pre_processor_reset(Mod_id,
                                          0,
                                          frameP,
                                          subframeP,
                                          min_rb_unit,
                                          (uint16_t (*)[NUMBER_OF_UE_MAX])nb_rbs_required,
                                          rballoc_sub,
                                          MIMO_mode_indicator,
                                          mbsfn_flag);
620
    }
Louis Adrien Dufrene's avatar
Louis Adrien Dufrene committed
621
  }
622 623

#if (!defined(PRE_SCD_THREAD))
Louis Adrien Dufrene's avatar
Louis Adrien Dufrene committed
624 625 626 627 628
  // Store the DLSCH buffer for each logical channel
  store_dlsch_buffer(Mod_id,0, frameP, subframeP);
  // Calculate the number of RBs required by each UE on the basis of logical channel's buffer
  assign_rbs_required(Mod_id, 0, frameP, subframeP, nb_rbs_required,
                      min_rb_unit);
629
#else
Louis Adrien Dufrene's avatar
Louis Adrien Dufrene committed
630
  memcpy(nb_rbs_required, pre_nb_rbs_required[dlsch_ue_select_tbl_in_use], sizeof(uint16_t)*MAX_NUM_CCs*NUMBER_OF_UE_MAX);
631 632 633 634 635 636 637 638 639 640 641
#endif
  dlsch_scheduler_pre_ue_select_fairRR(Mod_id,frameP,subframeP, mbsfn_flag,nb_rbs_required,dlsch_ue_select);

  for (CC_id = 0; CC_id < MAX_NUM_CCs; CC_id++) {
    average_rbs_per_user[CC_id] = 0;
    cc = &RC.mac[Mod_id]->common_channels[CC_id];
    // Get total available RBS count and total UE count
    temp_total_rbs_count = RC.mac[Mod_id]->eNB_stats[CC_id].available_prbs;
    temp_total_ue_count = dlsch_ue_select[CC_id].ue_num;

    for (i = 0; i < dlsch_ue_select[CC_id].ue_num; i++) {
Louis Adrien Dufrene's avatar
Louis Adrien Dufrene committed
642 643 644
      if(dlsch_ue_select[CC_id].list[i].ue_priority == SCH_DL_MSG2) {
        temp_total_ue_count--;
        continue;
645
      }
Louis Adrien Dufrene's avatar
Louis Adrien Dufrene committed
646 647 648 649

      if(dlsch_ue_select[CC_id].list[i].ue_priority == SCH_DL_MSG4) {
        temp_total_ue_count--;
        continue;
650
      }
Louis Adrien Dufrene's avatar
Louis Adrien Dufrene committed
651

652 653 654
      UE_id = dlsch_ue_select[CC_id].list[i].UE_id;
      nb_rbs_required[CC_id][UE_id] = dlsch_ue_select[CC_id].list[i].nb_rb;
      average_rbs_per_user[CC_id] = (uint16_t)round((double)temp_total_rbs_count/(double)temp_total_ue_count);
Louis Adrien Dufrene's avatar
Louis Adrien Dufrene committed
655 656

      if( average_rbs_per_user[CC_id] < min_rb_unit[CC_id] ) {
657 658 659 660 661 662 663 664
        temp_total_ue_count--;
        dlsch_ue_select[CC_id].ue_num--;
        i--;
        continue;
      }

      rnti = dlsch_ue_select[CC_id].list[i].rnti;
      ue_sched_ctl = &UE_list->UE_sched_ctrl[UE_id];
Louis Adrien Dufrene's avatar
Louis Adrien Dufrene committed
665
      harq_pid = frame_subframe2_dl_harq_pid(cc->tdd_Config,frameP,subframeP);
666 667 668 669 670 671 672 673 674
      Round    = ue_sched_ctl->round[CC_id][harq_pid];

      //if (mac_eNB_get_rrc_status(Mod_id, rnti) < RRC_RECONFIGURED || round > 0) {
      if (mac_eNB_get_rrc_status(Mod_id, rnti) < RRC_RECONFIGURED || Round != 8) {  // FIXME
        nb_rbs_required_remaining[CC_id][UE_id] = dlsch_ue_select[CC_id].list[i].nb_rb;
      } else {
        nb_rbs_required_remaining[CC_id][UE_id] = cmin(average_rbs_per_user[CC_id], dlsch_ue_select[CC_id].list[i].nb_rb);
      }

675 676
      /* slicing support has been introduced into the scheduler. Provide dummy
       * data so that the preprocessor "simply works" */
677 678 679
      for (c = 0; c < MAX_NUM_CCs; ++c)
        for (j = 0; j < N_RBG_MAX; ++j)
          slice_allocation[c][j] = 1;
680 681 682 683 684 685 686

      LOG_T(MAC,"calling dlsch_scheduler_pre_processor_allocate .. \n ");
      dlsch_scheduler_pre_processor_allocate (Mod_id,
                                              UE_id,
                                              CC_id,
                                              N_RBG[CC_id],
                                              min_rb_unit[CC_id],
687 688
                                              (uint16_t (*)[NUMBER_OF_UE_MAX])nb_rbs_required,
                                              (uint16_t (*)[NUMBER_OF_UE_MAX])nb_rbs_required_remaining,
689
                                              rballoc_sub,
690
                                              slice_allocation,
691 692 693 694 695 696 697 698 699 700 701 702 703
                                              MIMO_mode_indicator);
      temp_total_rbs_count -= ue_sched_ctl->pre_nb_available_rbs[CC_id];
      temp_total_ue_count--;

      if (ue_sched_ctl->pre_nb_available_rbs[CC_id] == 0) {
        dlsch_ue_select[CC_id].ue_num = i;
        break;
      }

      if (temp_total_rbs_count == 0) {
        dlsch_ue_select[CC_id].ue_num = i+1;
        break;
      }
Louis Adrien Dufrene's avatar
Louis Adrien Dufrene committed
704 705 706 707 708

      LOG_D(MAC,
            "DLSCH UE Select: frame %d subframe %d pre_nb_available_rbs %d(i %d UE_id %d nb_rbs_required %d nb_rbs_required_remaining %d average_rbs_per_user %d (temp_total rbs_count %d ue_num %d) available_prbs %d)\n",
            frameP,subframeP,ue_sched_ctl->pre_nb_available_rbs[CC_id],i,UE_id,nb_rbs_required[CC_id][UE_id],nb_rbs_required_remaining[CC_id][UE_id],
            average_rbs_per_user[CC_id],temp_total_rbs_count,temp_total_ue_count,RC.mac[Mod_id]->eNB_stats[CC_id].available_prbs);
709 710 711 712 713 714 715 716
#ifdef TM5
      // TODO: data channel TM5: to be re-visited
#endif
    }
  }

#ifdef TM5

Louis Adrien Dufrene's avatar
Louis Adrien Dufrene committed
717 718 719 720 721 722 723 724 725 726 727 728 729 730
  // This has to be revisited!!!!
  for (CC_id = 0; CC_id < MAX_NUM_CCs; CC_id++) {
    i1 = 0;
    i2 = 0;
    i3 = 0;

    for (j = 0; j < N_RBG[CC_id]; j++) {
      if (MIMO_mode_indicator[CC_id][j] == 2) {
        i1 = i1 + 1;
      } else if (MIMO_mode_indicator[CC_id][j] == 1) {
        i2 = i2 + 1;
      } else if (MIMO_mode_indicator[CC_id][j] == 0) {
        i3 = i3 + 1;
      }
731 732
    }

Louis Adrien Dufrene's avatar
Louis Adrien Dufrene committed
733 734 735 736
    if ((i1 < N_RBG[CC_id]) && (i2 > 0) && (i3 == 0)) {
      PHY_vars_eNB_g[Mod_id][CC_id]->check_for_SUMIMO_transmissions =
        PHY_vars_eNB_g[Mod_id][CC_id]->
        check_for_SUMIMO_transmissions + 1;
737 738
    }

Louis Adrien Dufrene's avatar
Louis Adrien Dufrene committed
739 740 741 742 743
    if (i3 == N_RBG[CC_id] && i1 == 0 && i2 == 0) {
      PHY_vars_eNB_g[Mod_id][CC_id]->FULL_MUMIMO_transmissions =
        PHY_vars_eNB_g[Mod_id][CC_id]->FULL_MUMIMO_transmissions +
        1;
    }
744

Louis Adrien Dufrene's avatar
Louis Adrien Dufrene committed
745 746 747 748
    if((i1 < N_RBG[CC_id]) && (i3 > 0)) {
      PHY_vars_eNB_g[Mod_id][CC_id]->
      check_for_MUMIMO_transmissions + 1;
    }
749

Louis Adrien Dufrene's avatar
Louis Adrien Dufrene committed
750 751 752 753
    PHY_vars_eNB_g[Mod_id][CC_id]->check_for_total_transmissions =
      PHY_vars_eNB_g[Mod_id][CC_id]->check_for_total_transmissions +
      1;
  }
754

755
#endif
Louis Adrien Dufrene's avatar
Louis Adrien Dufrene committed
756 757 758 759 760 761 762 763 764 765 766 767 768 769 770 771 772 773 774 775 776 777 778 779 780 781 782 783 784 785 786 787 788 789 790 791

  for (CC_id = 0; CC_id < MAX_NUM_CCs; CC_id++) {
    for (i = 0; i < dlsch_ue_select[CC_id].ue_num; i++) {
      if(dlsch_ue_select[CC_id].list[i].ue_priority == SCH_DL_MSG2) {
        continue;
      }

      if(dlsch_ue_select[CC_id].list[i].ue_priority == SCH_DL_MSG4) {
        continue;
      }

      UE_id = dlsch_ue_select[CC_id].list[i].UE_id;
      ue_sched_ctl = &RC.mac[Mod_id]->UE_list.UE_sched_ctrl[UE_id];
      //PHY_vars_eNB_g[Mod_id]->mu_mimo_mode[UE_id].dl_pow_off = dl_pow_off[UE_id];

      if (ue_sched_ctl->pre_nb_available_rbs[CC_id] > 0) {
        LOG_D(MAC,
              "******************DL Scheduling Information for UE%d ************************\n",
              UE_id);
        LOG_D(MAC, "dl power offset UE%d = %d \n", UE_id,
              ue_sched_ctl->dl_pow_off[CC_id]);
        LOG_D(MAC,
              "***********RB Alloc for every subband for UE%d ***********\n",
              UE_id);

        for (j = 0; j < N_RBG[CC_id]; j++) {
          //PHY_vars_eNB_g[Mod_id]->mu_mimo_mode[UE_id].rballoc_sub[i] = rballoc_sub_UE[CC_id][UE_id][i];
          LOG_D(MAC, "RB Alloc for UE%d and Subband%d = %d\n",
                UE_id, j,
                ue_sched_ctl->rballoc_sub_UE[CC_id][j]);
        }

        //PHY_vars_eNB_g[Mod_id]->mu_mimo_mode[UE_id].pre_nb_available_rbs = pre_nb_available_rbs[CC_id][UE_id];
        LOG_D(MAC, "Total RBs allocated for UE%d = %d\n", UE_id,
              ue_sched_ctl->pre_nb_available_rbs[CC_id]);
      }
792
    }
Louis Adrien Dufrene's avatar
Louis Adrien Dufrene committed
793 794
  }
}
795

Louis Adrien Dufrene's avatar
Louis Adrien Dufrene committed
796 797 798 799 800 801 802 803 804 805 806 807 808 809 810 811 812 813 814 815 816 817 818 819 820 821 822 823 824 825 826 827 828 829 830 831 832 833 834 835 836 837 838 839 840 841 842 843 844 845 846 847 848 849 850 851 852 853 854 855 856 857 858 859 860 861 862 863 864 865 866 867 868 869 870 871 872 873 874 875 876 877 878 879 880 881 882 883 884 885 886 887 888 889 890 891 892 893 894

//------------------------------------------------------------------------------
void
schedule_ue_spec_fairRR(module_id_t module_idP,
                        frame_t frameP, sub_frame_t subframeP, int *mbsfn_flag)
//------------------------------------------------------------------------------
{
  uint8_t CC_id;
  int UE_id;
  //    unsigned char aggregation;
  mac_rlc_status_resp_t rlc_status;
  unsigned char header_len_dcch = 0, header_len_dcch_tmp = 0;
  unsigned char header_len_dtch = 0, header_len_dtch_tmp = 0, header_len_dtch_last = 0;
  unsigned char ta_len = 0;
  unsigned char sdu_lcids[NB_RB_MAX], lcid, offset, num_sdus = 0;
  uint16_t nb_rb, nb_rb_temp, nb_available_rb;
  uint16_t TBS, j, sdu_lengths[NB_RB_MAX], rnti, padding = 0, post_padding = 0;
  unsigned char dlsch_buffer[MAX_DLSCH_PAYLOAD_BYTES];
  unsigned char round = 0;
  unsigned char harq_pid = 0;
  eNB_UE_STATS *eNB_UE_stats = NULL;
  uint16_t sdu_length_total = 0;
  eNB_MAC_INST *eNB = RC.mac[module_idP];
  COMMON_channels_t *cc = eNB->common_channels;
  UE_list_t *UE_list = &eNB->UE_list;
  // int continue_flag = 0;
  int32_t normalized_rx_power, target_rx_power;
  int32_t tpc = 1;
  static int32_t tpc_accumulated = 0;
  UE_sched_ctrl *ue_sched_ctl;
  int mcs;
  int i;
  int min_rb_unit[MAX_NUM_CCs];
  int N_RB_DL[MAX_NUM_CCs];
  int total_nb_available_rb[MAX_NUM_CCs];
  int N_RBG[MAX_NUM_CCs];
  nfapi_dl_config_request_body_t *dl_req;
  nfapi_dl_config_request_pdu_t *dl_config_pdu;
  int tdd_sfa;
  int ta_update;
#ifdef DEBUG_eNB_SCHEDULER
  int k;
#endif
  start_meas(&eNB->schedule_dlsch);
  VCD_SIGNAL_DUMPER_DUMP_FUNCTION_BY_NAME
  (VCD_SIGNAL_DUMPER_FUNCTIONS_SCHEDULE_DLSCH, VCD_FUNCTION_IN);

  // for TDD: check that we have to act here, otherwise return
  if (cc[0].tdd_Config) {
    tdd_sfa = cc[0].tdd_Config->subframeAssignment;

    switch (subframeP) {
      case 0:
        // always continue
        break;

      case 1:
        return;
        break;

      case 2:
        return;
        break;

      case 3:
        if ((tdd_sfa != 2) && (tdd_sfa != 5))
          return;

        break;

      case 4:
        if ((tdd_sfa != 1) && (tdd_sfa != 2) && (tdd_sfa != 4)
            && (tdd_sfa != 5))
          return;

        break;

      case 5:
        break;

      case 6:
      case 7:
        if ((tdd_sfa != 3)&& (tdd_sfa != 4) && (tdd_sfa != 5))
          return;

        break;

      case 8:
        if ((tdd_sfa != 2) && (tdd_sfa != 3) && (tdd_sfa != 4)
            && (tdd_sfa != 5))
          return;

        break;

      case 9:
        if (tdd_sfa == 0)
          return;

        break;
895
    }
Louis Adrien Dufrene's avatar
Louis Adrien Dufrene committed
896
  }
897

Louis Adrien Dufrene's avatar
Louis Adrien Dufrene committed
898 899 900 901 902 903 904 905 906 907 908 909 910 911 912 913 914 915 916 917 918 919
  //weight = get_ue_weight(module_idP,UE_id);
  //    aggregation = 2;
  for (CC_id = 0; CC_id < MAX_NUM_CCs; CC_id++) {
    N_RB_DL[CC_id] = to_prb(cc[CC_id].mib->message.dl_Bandwidth);
    min_rb_unit[CC_id] = get_min_rb_unit(module_idP, CC_id);
    // get number of PRBs less those used by common channels
    total_nb_available_rb[CC_id] = N_RB_DL[CC_id];

    for (i = 0; i < N_RB_DL[CC_id]; i++)
      if (cc[CC_id].vrb_map[i] != 0)
        total_nb_available_rb[CC_id]--;

    N_RBG[CC_id] = to_rbg(cc[CC_id].mib->message.dl_Bandwidth);
    // store the global enb stats:
    eNB->eNB_stats[CC_id].num_dlactive_UEs = UE_list->num_UEs;
    eNB->eNB_stats[CC_id].available_prbs =
      total_nb_available_rb[CC_id];
    eNB->eNB_stats[CC_id].total_available_prbs +=
      total_nb_available_rb[CC_id];
    eNB->eNB_stats[CC_id].dlsch_bytes_tx = 0;
    eNB->eNB_stats[CC_id].dlsch_pdus_tx = 0;
  }
920

Louis Adrien Dufrene's avatar
Louis Adrien Dufrene committed
921
  /// CALLING Pre_Processor for downlink scheduling (Returns estimation of RBs required by each UE and the allocation on sub-band)
922 923 924
  VCD_SIGNAL_DUMPER_DUMP_FUNCTION_BY_NAME(VCD_SIGNAL_DUMPER_FUNCTIONS_DLSCH_PREPROCESSOR,VCD_FUNCTION_IN);
  start_meas(&eNB->schedule_dlsch_preprocessor);
  dlsch_scheduler_pre_processor_fairRR(module_idP,
Louis Adrien Dufrene's avatar
Louis Adrien Dufrene committed
925 926 927 928
                                       frameP,
                                       subframeP,
                                       N_RBG,
                                       mbsfn_flag);
929 930 931 932 933 934 935 936 937 938 939
  stop_meas(&eNB->schedule_dlsch_preprocessor);
  VCD_SIGNAL_DUMPER_DUMP_FUNCTION_BY_NAME(VCD_SIGNAL_DUMPER_FUNCTIONS_DLSCH_PREPROCESSOR,VCD_FUNCTION_OUT);

  for (CC_id=0; CC_id<MAX_NUM_CCs; CC_id++) {
    LOG_D(MAC, "doing schedule_ue_spec for CC_id %d\n",CC_id);
    dl_req        = &eNB->DL_req[CC_id].dl_config_request_body;

    if (mbsfn_flag[CC_id]>0)
      continue;

    for (i = 0; i < dlsch_ue_select[CC_id].ue_num; i++) {
Louis Adrien Dufrene's avatar
Louis Adrien Dufrene committed
940
      if(dlsch_ue_select[CC_id].list[i].ue_priority == SCH_DL_MSG2) {
941 942
        continue;
      }
Louis Adrien Dufrene's avatar
Louis Adrien Dufrene committed
943 944

      if(dlsch_ue_select[CC_id].list[i].ue_priority == SCH_DL_MSG4) {
945 946
        continue;
      }
Louis Adrien Dufrene's avatar
Louis Adrien Dufrene committed
947

948 949
      UE_id = dlsch_ue_select[CC_id].list[i].UE_id;
      rnti = UE_RNTI(module_idP,UE_id);
Louis Adrien Dufrene's avatar
Louis Adrien Dufrene committed
950

951 952 953 954 955 956 957
      if (rnti==NOT_A_RNTI) {
        LOG_E(MAC,"Cannot find rnti for UE_id %d (num_UEs %d)\n",UE_id,UE_list->num_UEs);
        continue;
      }

      eNB_UE_stats = &UE_list->eNB_UE_stats[CC_id][UE_id];
      ue_sched_ctl = &UE_list->UE_sched_ctrl[UE_id];
Louis Adrien Dufrene's avatar
Louis Adrien Dufrene committed
958 959 960 961 962 963 964 965 966 967 968 969 970 971 972 973 974 975 976 977 978

      /*
            switch(get_tmode(module_idP,CC_id,UE_id)){
            case 1:
            case 2:
            case 7:
              aggregation = get_aggregation(get_bw_index(module_idP,CC_id),
                                            ue_sched_ctl->dl_cqi[CC_id],
                                            format1);
              break;
            case 3:
              aggregation = get_aggregation(get_bw_index(module_idP,CC_id),
                                            ue_sched_ctl->dl_cqi[CC_id],
                                            format2A);
              break;
            default:
              LOG_W(MAC,"Unsupported transmission mode %d\n", get_tmode(module_idP,CC_id,UE_id));
              aggregation = 2;
              break;
            }
      */
979 980 981 982
      if (cc[CC_id].tdd_Config != NULL) { //TDD
        set_ue_dai (subframeP,
                    UE_id,
                    CC_id,
Louis Adrien Dufrene's avatar
Louis Adrien Dufrene committed
983
                    cc[CC_id].tdd_Config->subframeAssignment,
984 985 986 987 988
                    UE_list);
        // update UL DAI after DLSCH scheduling
        set_ul_DAI(module_idP,UE_id,CC_id,frameP,subframeP);
      }

Louis Adrien Dufrene's avatar
Louis Adrien Dufrene committed
989 990 991 992 993 994 995 996 997 998 999 1000
      nb_available_rb = ue_sched_ctl->pre_nb_available_rbs[CC_id];
      harq_pid = frame_subframe2_dl_harq_pid(cc->tdd_Config,frameP,subframeP);
      round = ue_sched_ctl->round[CC_id][harq_pid];
      UE_list->eNB_UE_stats[CC_id][UE_id].crnti = rnti;
      UE_list->eNB_UE_stats[CC_id][UE_id].rrc_status =
        mac_eNB_get_rrc_status(module_idP, rnti);
      UE_list->eNB_UE_stats[CC_id][UE_id].harq_pid = harq_pid;
      UE_list->eNB_UE_stats[CC_id][UE_id].harq_round = round;

      if (UE_list->eNB_UE_stats[CC_id][UE_id].rrc_status <
          RRC_CONNECTED)
        continue;
1001

Louis Adrien Dufrene's avatar
Louis Adrien Dufrene committed
1002 1003
      sdu_length_total = 0;
      num_sdus = 0;
1004

Louis Adrien Dufrene's avatar
Louis Adrien Dufrene committed
1005 1006 1007 1008 1009 1010 1011 1012 1013 1014 1015
      /*
         DevCheck(((eNB_UE_stats->dl_cqi < MIN_CQI_VALUE) || (eNB_UE_stats->dl_cqi > MAX_CQI_VALUE)),
         eNB_UE_stats->dl_cqi, MIN_CQI_VALUE, MAX_CQI_VALUE);
       */
      if (nfapi_mode) {
        eNB_UE_stats->dlsch_mcs1 = 10;//cqi_to_mcs[ue_sched_ctl->dl_cqi[CC_id]];
      } else {
        eNB_UE_stats->dlsch_mcs1 = cqi_to_mcs[ue_sched_ctl->dl_cqi[CC_id]];
      }

      eNB_UE_stats->dlsch_mcs1 = eNB_UE_stats->dlsch_mcs1;  //cmin(eNB_UE_stats->dlsch_mcs1, openair_daq_vars.target_ue_dl_mcs);
1016

Louis Adrien Dufrene's avatar
Louis Adrien Dufrene committed
1017 1018
      // store stats
      //UE_list->eNB_UE_stats[CC_id][UE_id].dl_cqi= eNB_UE_stats->dl_cqi;
1019

Louis Adrien Dufrene's avatar
Louis Adrien Dufrene committed
1020 1021 1022 1023 1024 1025 1026 1027 1028 1029 1030 1031 1032
      // initializing the rb allocation indicator for each UE
      for (j = 0; j < N_RBG[CC_id]; j++) {
        UE_list->
        UE_template[CC_id][UE_id].rballoc_subband[harq_pid][j]
          = 0;
      }

      LOG_D(MAC,
            "[eNB %d] Frame %d: Scheduling UE %d on CC_id %d (rnti %x, harq_pid %d, round %d, rb %d, cqi %d, mcs %d, rrc %d)\n",
            module_idP, frameP, UE_id, CC_id, rnti, harq_pid, round,
            nb_available_rb, ue_sched_ctl->dl_cqi[CC_id],
            eNB_UE_stats->dlsch_mcs1,
            UE_list->eNB_UE_stats[CC_id][UE_id].rrc_status);
1033

Louis Adrien Dufrene's avatar
Louis Adrien Dufrene committed
1034
      /* process retransmission  */
1035

Louis Adrien Dufrene's avatar
Louis Adrien Dufrene committed
1036 1037 1038 1039 1040 1041 1042
      if (round != 8) {
        // get freq_allocation
        nb_rb = UE_list->UE_template[CC_id][UE_id].nb_rb[harq_pid];
        TBS =
          get_TBS_DL(UE_list->
                     UE_template[CC_id][UE_id].oldmcs1[harq_pid],
                     nb_rb);
1043

Louis Adrien Dufrene's avatar
Louis Adrien Dufrene committed
1044 1045 1046 1047 1048 1049 1050 1051 1052 1053 1054 1055 1056 1057 1058 1059 1060
        if (nb_rb <= nb_available_rb) {
          if (cc[CC_id].tdd_Config != NULL) {
            UE_list->UE_template[CC_id][UE_id].DAI++;
            update_ul_dci(module_idP, CC_id, rnti,
                          UE_list->UE_template[CC_id][UE_id].
                          DAI,subframeP);
            LOG_D(MAC,
                  "DAI update: CC_id %d subframeP %d: UE %d, DAI %d\n",
                  CC_id, subframeP, UE_id,
                  UE_list->UE_template[CC_id][UE_id].DAI);
          }

          if (nb_rb == ue_sched_ctl->pre_nb_available_rbs[CC_id]) {
            for (j = 0; j < N_RBG[CC_id]; j++) {  // for indicating the rballoc for each sub-band
              UE_list->UE_template[CC_id][UE_id].
              rballoc_subband[harq_pid][j] =
                ue_sched_ctl->rballoc_sub_UE[CC_id][j];
1061
            }
Louis Adrien Dufrene's avatar
Louis Adrien Dufrene committed
1062 1063 1064 1065 1066 1067 1068 1069 1070 1071 1072 1073 1074 1075 1076 1077 1078 1079 1080 1081 1082 1083 1084 1085 1086 1087 1088 1089 1090 1091 1092
          } else {
            nb_rb_temp = nb_rb;
            j = 0;

            while ((nb_rb_temp > 0) && (j < N_RBG[CC_id])) {
              if (ue_sched_ctl->rballoc_sub_UE[CC_id][j] ==
                  1) {
                if (UE_list->
                    UE_template[CC_id]
                    [UE_id].rballoc_subband[harq_pid][j])
                  printf
                  ("WARN: rballoc_subband not free for retrans?\n");

                UE_list->
                UE_template[CC_id]
                [UE_id].rballoc_subband[harq_pid][j] =
                  ue_sched_ctl->rballoc_sub_UE[CC_id][j];

                if ((j == N_RBG[CC_id] - 1) &&
                    ((N_RB_DL[CC_id] == 25) ||
                     (N_RB_DL[CC_id] == 50))) {
                  nb_rb_temp =
                    nb_rb_temp - min_rb_unit[CC_id] +
                    1;
                } else {
                  nb_rb_temp =
                    nb_rb_temp - min_rb_unit[CC_id];
                }
              }

              j = j + 1;
1093
            }
Louis Adrien Dufrene's avatar
Louis Adrien Dufrene committed
1094 1095 1096 1097 1098 1099 1100 1101 1102 1103 1104 1105 1106 1107 1108 1109 1110 1111 1112 1113 1114 1115 1116 1117 1118 1119 1120 1121 1122 1123 1124 1125 1126 1127 1128 1129 1130 1131 1132 1133 1134 1135 1136 1137 1138 1139 1140 1141 1142 1143 1144 1145 1146 1147 1148 1149 1150 1151 1152 1153 1154 1155 1156 1157 1158 1159 1160 1161 1162 1163 1164 1165 1166 1167 1168 1169 1170 1171 1172 1173 1174 1175 1176 1177 1178 1179 1180 1181 1182 1183 1184 1185 1186 1187 1188 1189 1190 1191 1192 1193 1194 1195 1196 1197 1198 1199 1200 1201 1202 1203 1204 1205 1206 1207 1208 1209 1210 1211 1212 1213 1214 1215 1216 1217 1218 1219 1220 1221 1222 1223 1224 1225 1226 1227 1228 1229 1230 1231 1232 1233 1234 1235 1236 1237 1238 1239 1240 1241 1242 1243 1244 1245 1246 1247 1248 1249 1250 1251 1252 1253 1254 1255 1256 1257 1258 1259 1260 1261
          }

          nb_available_rb -= nb_rb;
          /*
             eNB->mu_mimo_mode[UE_id].pre_nb_available_rbs = nb_rb;
             eNB->mu_mimo_mode[UE_id].dl_pow_off = ue_sched_ctl->dl_pow_off[CC_id];

             for(j=0; j<N_RBG[CC_id]; j++) {
             eNB->mu_mimo_mode[UE_id].rballoc_sub[j] = UE_list->UE_template[CC_id][UE_id].rballoc_subband[harq_pid][j];
             }
           */

          switch (get_tmode(module_idP, CC_id, UE_id)) {
            case 1:
            case 2:
            case 7:
            default:
              LOG_D(MAC,"retransmission DL_REQ: rnti:%x\n",rnti);
              dl_config_pdu =
                &dl_req->dl_config_pdu_list[dl_req->
                                            number_pdu];
              memset((void *) dl_config_pdu, 0,
                     sizeof(nfapi_dl_config_request_pdu_t));
              dl_config_pdu->pdu_type =
                NFAPI_DL_CONFIG_DCI_DL_PDU_TYPE;
              dl_config_pdu->pdu_size =
                (uint8_t) (2 +
                           sizeof(nfapi_dl_config_dci_dl_pdu));
              dl_config_pdu->dci_dl_pdu.dci_dl_pdu_rel8.tl.tag = NFAPI_DL_CONFIG_REQUEST_DCI_DL_PDU_REL8_TAG;
              dl_config_pdu->dci_dl_pdu.dci_dl_pdu_rel8.
              dci_format = NFAPI_DL_DCI_FORMAT_1;
              dl_config_pdu->dci_dl_pdu.
              dci_dl_pdu_rel8.aggregation_level =
                get_aggregation(get_bw_index
                                (module_idP, CC_id),
                                ue_sched_ctl->dl_cqi[CC_id],
                                format1);
              dl_config_pdu->dci_dl_pdu.dci_dl_pdu_rel8.rnti =
                rnti;
              dl_config_pdu->dci_dl_pdu.dci_dl_pdu_rel8.rnti_type = 1;  // CRNTI : see Table 4-10 from SCF082 - nFAPI specifications
              dl_config_pdu->dci_dl_pdu.dci_dl_pdu_rel8.transmission_power = 6000;  // equal to RS power
              dl_config_pdu->dci_dl_pdu.dci_dl_pdu_rel8.
              harq_process = harq_pid;
              dl_config_pdu->dci_dl_pdu.dci_dl_pdu_rel8.tpc = 1;  // dont adjust power when retransmitting
              dl_config_pdu->dci_dl_pdu.
              dci_dl_pdu_rel8.new_data_indicator_1 =
                UE_list->UE_template[CC_id][UE_id].
                oldNDI[harq_pid];
              dl_config_pdu->dci_dl_pdu.dci_dl_pdu_rel8.mcs_1 =
                UE_list->UE_template[CC_id][UE_id].
                oldmcs1[harq_pid];
              dl_config_pdu->dci_dl_pdu.
              dci_dl_pdu_rel8.redundancy_version_1 =
                round & 3;

              if (cc[CC_id].tdd_Config != NULL) { //TDD
                dl_config_pdu->dci_dl_pdu.
                dci_dl_pdu_rel8.downlink_assignment_index =
                  (UE_list->UE_template[CC_id][UE_id].DAI -
                   1) & 3;
                LOG_D(MAC,
                      "[eNB %d] Retransmission CC_id %d : harq_pid %d, round %d, dai %d, mcs %d\n",
                      module_idP, CC_id, harq_pid, round,
                      (UE_list->UE_template[CC_id][UE_id].DAI -
                       1),
                      UE_list->
                      UE_template[CC_id][UE_id].oldmcs1
                      [harq_pid]);
              } else {
                LOG_D(MAC,
                      "[eNB %d] Retransmission CC_id %d : harq_pid %d, round %d, mcs %d\n",
                      module_idP, CC_id, harq_pid, round,
                      UE_list->
                      UE_template[CC_id][UE_id].oldmcs1
                      [harq_pid]);
              }

              if (!CCE_allocation_infeasible
                  (module_idP, CC_id, 1, subframeP,
                   dl_config_pdu->dci_dl_pdu.
                   dci_dl_pdu_rel8.aggregation_level, rnti)) {
                dl_req->number_dci++;
                dl_req->number_pdu++;
                dl_req->tl.tag = NFAPI_DL_CONFIG_REQUEST_BODY_TAG;
                eNB->DL_req[CC_id].sfn_sf = frameP<<4 | subframeP;
                eNB->DL_req[CC_id].header.message_id = NFAPI_DL_CONFIG_REQUEST;
                fill_nfapi_dlsch_config(eNB, dl_req, TBS, -1
                                        /* retransmission, no pdu_index */
                                        , rnti, 0,  // type 0 allocation from 7.1.6 in 36.213
                                        0,  // virtual_resource_block_assignment_flag, unused here
                                        0,  // resource_block_coding, to be filled in later
                                        getQm(UE_list->UE_template[CC_id][UE_id].oldmcs1[harq_pid]), round & 3, // redundancy version
                                        1,  // transport blocks
                                        0,  // transport block to codeword swap flag
                                        cc[CC_id].p_eNB == 1 ? 0 : 1, // transmission_scheme
                                        1,  // number of layers
                                        1,  // number of subbands
                                        //                      uint8_t codebook_index,
                                        4,  // UE category capacity
                                        UE_list->UE_template[CC_id][UE_id].physicalConfigDedicated->pdsch_ConfigDedicated->p_a, 0,  // delta_power_offset for TM5
                                        0,  // ngap
                                        0,  // nprb
                                        cc[CC_id].p_eNB == 1 ? 1 : 2, // transmission mode
                                        0,  //number of PRBs treated as one subband, not used here
                                        0 // number of beamforming vectors, not used here
                                       );
                LOG_D(MAC,
                      "Filled NFAPI configuration for DCI/DLSCH %d, retransmission round %d\n",
                      eNB->pdu_index[CC_id], round);
                program_dlsch_acknak(module_idP, CC_id, UE_id,
                                     frameP, subframeP,
                                     dl_config_pdu->
                                     dci_dl_pdu.dci_dl_pdu_rel8.
                                     cce_idx);
                // No TX request for retransmission (check if null request for FAPI)
              } else {
                LOG_W(MAC,
                      "Frame %d, Subframe %d: Dropping DLSCH allocation for UE %d\%x, infeasible CCE allocation\n",
                      frameP, subframeP, UE_id, rnti);
              }
          }

          add_ue_dlsch_info(module_idP,
                            CC_id, UE_id, subframeP,
                            S_DL_SCHEDULED);
          //eNB_UE_stats->dlsch_trials[round]++;
          UE_list->eNB_UE_stats[CC_id][UE_id].
          num_retransmission += 1;
          UE_list->eNB_UE_stats[CC_id][UE_id].rbs_used_retx =
            nb_rb;
          UE_list->eNB_UE_stats[CC_id][UE_id].
          total_rbs_used_retx += nb_rb;
          UE_list->eNB_UE_stats[CC_id][UE_id].dlsch_mcs1 =
            eNB_UE_stats->dlsch_mcs1;
          UE_list->eNB_UE_stats[CC_id][UE_id].dlsch_mcs2 =
            eNB_UE_stats->dlsch_mcs1;
        } else {
          LOG_D(MAC,
                "[eNB %d] Frame %d CC_id %d : don't schedule UE %d, its retransmission takes more resources than we have\n",
                module_idP, frameP, CC_id, UE_id);
        }
      } else {    /* This is a potentially new SDU opportunity */
        rlc_status.bytes_in_buffer = 0;
        // Now check RLC information to compute number of required RBs
        // get maximum TBS size for RLC request
        TBS =
          get_TBS_DL(eNB_UE_stats->dlsch_mcs1, nb_available_rb);
        // check first for RLC data on DCCH
        // add the length for  all the control elements (timing adv, drx, etc) : header + payload

        if (ue_sched_ctl->ta_timer == 0) {
          ta_update = ue_sched_ctl->ta_update;

          /* if we send TA then set timer to not send it for a while */
          if (ta_update != 31)
            ue_sched_ctl->ta_timer = 20;

          /* reset ta_update */
          ue_sched_ctl->ta_update = 31;
        } else {
          ta_update = 31;
        }

        ta_len = (ta_update != 31) ? 2 : 0;
        header_len_dcch = 2;  // 2 bytes DCCH SDU subheader

        if (TBS - ta_len - header_len_dcch > 0) {
          rlc_status = mac_rlc_status_ind(module_idP, rnti, module_idP, frameP, subframeP, ENB_FLAG_YES, MBMS_FLAG_NO, DCCH, (TBS - ta_len - header_len_dcch)
1262
#if (LTE_RRC_VERSION >= MAKE_VERSION(14, 0, 0))
Louis Adrien Dufrene's avatar
Louis Adrien Dufrene committed
1263
                                          ,0, 0
1264
#endif
Louis Adrien Dufrene's avatar
Louis Adrien Dufrene committed
1265 1266 1267 1268 1269 1270 1271 1272 1273 1274 1275 1276
                                         ); // transport block set size
          sdu_lengths[0] = 0;

          if (rlc_status.bytes_in_buffer > 0) { // There is DCCH to transmit
            LOG_D(MAC,
                  "[eNB %d] SFN/SF %d.%d, DL-DCCH->DLSCH CC_id %d, Requesting %d bytes from RLC (RRC message)\n",
                  module_idP, frameP, subframeP, CC_id,
                  TBS - header_len_dcch);
            sdu_lengths[0] = mac_rlc_data_req(module_idP, rnti, module_idP, frameP, ENB_FLAG_YES, MBMS_FLAG_NO, DCCH, TBS,  //not used
                                              (char *)
                                              &dlsch_buffer
                                              [0]
1277
#if (LTE_RRC_VERSION >= MAKE_VERSION(14, 0, 0))
Louis Adrien Dufrene's avatar
Louis Adrien Dufrene committed
1278
                                              ,0, 0
1279
#endif
Louis Adrien Dufrene's avatar
Louis Adrien Dufrene committed
1280
                                             );
1281
            pthread_mutex_lock(&rrc_release_freelist);
Louis Adrien Dufrene's avatar
Louis Adrien Dufrene committed
1282 1283

            if((rrc_release_info.num_UEs > 0) && (rlc_am_mui.rrc_mui_num > 0)) {
1284
              uint16_t release_total = 0;
Louis Adrien Dufrene's avatar
Louis Adrien Dufrene committed
1285 1286 1287

              for(uint16_t release_num = 0; release_num < NUMBER_OF_UE_MAX; release_num++) {
                if(rrc_release_info.RRC_release_ctrl[release_num].flag > 0) {
1288
                  release_total++;
Louis Adrien Dufrene's avatar
Louis Adrien Dufrene committed
1289
                } else {
1290 1291 1292
                  continue;
                }

Louis Adrien Dufrene's avatar
Louis Adrien Dufrene committed
1293 1294 1295 1296
                if(rrc_release_info.RRC_release_ctrl[release_num].flag == 1) {
                  if(rrc_release_info.RRC_release_ctrl[release_num].rnti == rnti) {
                    for(uint16_t mui_num = 0; mui_num < rlc_am_mui.rrc_mui_num; mui_num++) {
                      if(rrc_release_info.RRC_release_ctrl[release_num].rrc_eNB_mui == rlc_am_mui.rrc_mui[mui_num]) {
1297 1298 1299
                        rrc_release_info.RRC_release_ctrl[release_num].flag = 3;
                        LOG_D(MAC,"DLSCH Release send:index %d rnti %x mui %d mui_num %d flag 1->3\n",release_num,rnti,rlc_am_mui.rrc_mui[mui_num],mui_num);
                        break;
Louis Adrien Dufrene's avatar
Louis Adrien Dufrene committed
1300 1301
                      }
                    }
1302 1303
                  }
                }
Louis Adrien Dufrene's avatar
Louis Adrien Dufrene committed
1304 1305 1306 1307 1308 1309 1310 1311

                if(rrc_release_info.RRC_release_ctrl[release_num].flag == 2) {
                  if(rrc_release_info.RRC_release_ctrl[release_num].rnti == rnti) {
                    for(uint16_t mui_num = 0; mui_num < rlc_am_mui.rrc_mui_num; mui_num++) {
                      if(rrc_release_info.RRC_release_ctrl[release_num].rrc_eNB_mui == rlc_am_mui.rrc_mui[mui_num]) {
                        rrc_release_info.RRC_release_ctrl[release_num].flag = 4;
                        LOG_D(MAC,"DLSCH Release send:index %d rnti %x mui %d mui_num %d flag 2->4\n",release_num,rnti,rlc_am_mui.rrc_mui[mui_num],mui_num);
                        break;
1312 1313 1314 1315
                      }
                    }
                  }
                }
Louis Adrien Dufrene's avatar
Louis Adrien Dufrene committed
1316

1317 1318 1319 1320 1321
                if(release_total >= rrc_release_info.num_UEs)
                  break;
              }
            }

Louis Adrien Dufrene's avatar
Louis Adrien Dufrene committed
1322
            pthread_mutex_unlock(&rrc_release_freelist);
1323
            RA_t *ra = &eNB->common_channels[CC_id].ra[0];
Louis Adrien Dufrene's avatar
Louis Adrien Dufrene committed
1324

1325
            for (uint8_t ra_ii = 0; ra_ii < NB_RA_PROC_MAX; ra_ii++) {
Louis Adrien Dufrene's avatar
Louis Adrien Dufrene committed
1326 1327 1328
              if((ra[ra_ii].rnti == rnti) && (ra[ra_ii].state == MSGCRNTI)) {
                for(uint16_t mui_num = 0; mui_num < rlc_am_mui.rrc_mui_num; mui_num++) {
                  if(ra[ra_ii].crnti_rrc_mui == rlc_am_mui.rrc_mui[mui_num]) {
1329 1330 1331 1332 1333 1334 1335
                    ra[ra_ii].crnti_harq_pid = harq_pid;
                    ra[ra_ii].state = MSGCRNTI_ACK;
                    break;
                  }
                }
              }
            }
Louis Adrien Dufrene's avatar
Louis Adrien Dufrene committed
1336 1337 1338 1339 1340 1341 1342 1343 1344 1345 1346 1347 1348 1349 1350 1351

            T(T_ENB_MAC_UE_DL_SDU, T_INT(module_idP),
              T_INT(CC_id), T_INT(rnti), T_INT(frameP),
              T_INT(subframeP), T_INT(harq_pid), T_INT(DCCH),
              T_INT(sdu_lengths[0]));
            LOG_D(MAC,
                  "[eNB %d][DCCH] CC_id %d frame %d subframe %d UE_id %d/%x Got %d bytes bytes_in_buffer %d from release_num %d\n",
                  module_idP, CC_id, frameP, subframeP, UE_id, rnti, sdu_lengths[0],rlc_status.bytes_in_buffer,rrc_release_info.num_UEs);
            sdu_length_total = sdu_lengths[0];
            sdu_lcids[0] = DCCH;
            UE_list->eNB_UE_stats[CC_id][UE_id].
            num_pdu_tx[DCCH] += 1;
            UE_list->
            eNB_UE_stats[CC_id][UE_id].num_bytes_tx[DCCH]
            += sdu_lengths[0];
            num_sdus = 1;
1352
#ifdef DEBUG_eNB_SCHEDULER
Louis Adrien Dufrene's avatar
Louis Adrien Dufrene committed
1353 1354 1355
            LOG_T(MAC,
                  "[eNB %d][DCCH] CC_id %d Got %d bytes :",
                  module_idP, CC_id, sdu_lengths[0]);
1356

Louis Adrien Dufrene's avatar
Louis Adrien Dufrene committed
1357 1358 1359
            for (k = 0; k < sdu_lengths[0]; k++) {
              LOG_T(MAC, "%x ", dlsch_buffer[k]);
            }
1360

Louis Adrien Dufrene's avatar
Louis Adrien Dufrene committed
1361
            LOG_T(MAC, "\n");
1362
#endif
Louis Adrien Dufrene's avatar
Louis Adrien Dufrene committed
1363 1364 1365 1366 1367 1368 1369 1370 1371
          } else {
            header_len_dcch = 0;
            sdu_length_total = 0;
          }
        }

        // check for DCCH1 and update header information (assume 2 byte sub-header)
        if (TBS - ta_len - header_len_dcch - sdu_length_total > 0) {
          rlc_status = mac_rlc_status_ind(module_idP, rnti, module_idP, frameP, subframeP, ENB_FLAG_YES, MBMS_FLAG_NO, DCCH + 1, (TBS - ta_len - header_len_dcch - sdu_length_total)
1372
#if (LTE_RRC_VERSION >= MAKE_VERSION(14, 0, 0))
Louis Adrien Dufrene's avatar
Louis Adrien Dufrene committed
1373
                                          ,0, 0
1374
#endif
Louis Adrien Dufrene's avatar
Louis Adrien Dufrene committed
1375 1376 1377 1378 1379 1380 1381 1382 1383 1384 1385 1386 1387
                                         ); // transport block set size less allocations for timing advance and
          // DCCH SDU
          sdu_lengths[num_sdus] = 0;

          if (rlc_status.bytes_in_buffer > 0) {
            LOG_D(MAC,
                  "[eNB %d], Frame %d, DCCH1->DLSCH, CC_id %d, Requesting %d bytes from RLC (RRC message)\n",
                  module_idP, frameP, CC_id,
                  TBS - header_len_dcch - sdu_length_total);
            sdu_lengths[num_sdus] += mac_rlc_data_req(module_idP, rnti, module_idP, frameP, ENB_FLAG_YES, MBMS_FLAG_NO, DCCH + 1, TBS,  //not used
                                     (char *)
                                     &dlsch_buffer
                                     [sdu_length_total]
1388
#if (LTE_RRC_VERSION >= MAKE_VERSION(14, 0, 0))
Louis Adrien Dufrene's avatar
Louis Adrien Dufrene committed
1389
                                     ,0, 0
1390
#endif
Louis Adrien Dufrene's avatar
Louis Adrien Dufrene committed
1391 1392 1393 1394 1395 1396 1397 1398 1399 1400 1401 1402 1403 1404
                                                     );
            T(T_ENB_MAC_UE_DL_SDU, T_INT(module_idP),
              T_INT(CC_id), T_INT(rnti), T_INT(frameP),
              T_INT(subframeP), T_INT(harq_pid),
              T_INT(DCCH + 1), T_INT(sdu_lengths[num_sdus]));
            sdu_lcids[num_sdus] = DCCH1;
            sdu_length_total += sdu_lengths[num_sdus];
            header_len_dcch += 2;
            UE_list->eNB_UE_stats[CC_id][UE_id].
            num_pdu_tx[DCCH1] += 1;
            UE_list->
            eNB_UE_stats[CC_id][UE_id].num_bytes_tx[DCCH1]
            += sdu_lengths[num_sdus];
            num_sdus++;
1405
#ifdef DEBUG_eNB_SCHEDULER
Louis Adrien Dufrene's avatar
Louis Adrien Dufrene committed
1406 1407 1408
            LOG_T(MAC,
                  "[eNB %d][DCCH1] CC_id %d Got %d bytes :",
                  module_idP, CC_id, sdu_lengths[num_sdus]);
1409

Louis Adrien Dufrene's avatar
Louis Adrien Dufrene committed
1410 1411 1412
            for (k = 0; k < sdu_lengths[num_sdus]; k++) {
              LOG_T(MAC, "%x ", dlsch_buffer[k]);
            }
1413

Louis Adrien Dufrene's avatar
Louis Adrien Dufrene committed
1414
            LOG_T(MAC, "\n");
1415
#endif
Louis Adrien Dufrene's avatar
Louis Adrien Dufrene committed
1416 1417
          }
        }
1418

Louis Adrien Dufrene's avatar
Louis Adrien Dufrene committed
1419 1420 1421 1422 1423 1424 1425 1426 1427 1428 1429 1430 1431 1432 1433 1434 1435 1436 1437 1438 1439 1440 1441 1442 1443 1444 1445
        // assume the max dtch header size, and adjust it later
        header_len_dtch = 0;
        header_len_dtch_last = 0; // the header length of the last mac sdu

        // lcid has to be sorted before the actual allocation (similar struct as ue_list).
        /* TODO limited lcid for performance */
        for (lcid = DTCH; lcid >= DTCH; lcid--) {
          // TBD: check if the lcid is active
          header_len_dtch += 3;
          header_len_dtch_last = 3;
          LOG_D(MAC, "[eNB %d], Frame %d, DTCH%d->DLSCH, Checking RLC status (tbs %d, len %d)\n",
                module_idP,
                frameP,
                lcid,
                TBS,
                TBS - ta_len - header_len_dcch - sdu_length_total - header_len_dtch);

          if (TBS - ta_len - header_len_dcch - sdu_length_total - header_len_dtch > 0) {  // NN: > 2 ?
            rlc_status = mac_rlc_status_ind(module_idP,
                                            rnti,
                                            module_idP,
                                            frameP,
                                            subframeP,
                                            ENB_FLAG_YES,
                                            MBMS_FLAG_NO,
                                            lcid,
                                            TBS - ta_len - header_len_dcch - sdu_length_total - header_len_dtch
1446
#ifdef Rel14
Louis Adrien Dufrene's avatar
Louis Adrien Dufrene committed
1447
                                            , 0, 0
1448
#endif
Louis Adrien Dufrene's avatar
Louis Adrien Dufrene committed
1449 1450 1451 1452 1453 1454 1455 1456 1457 1458 1459 1460 1461 1462 1463 1464 1465 1466 1467 1468
                                           );

            if (rlc_status.bytes_in_buffer > 0) {
              LOG_D(MAC,"[eNB %d][USER-PLANE DEFAULT DRB] Frame %d : DTCH->DLSCH, Requesting %d bytes from RLC (lcid %d total hdr len %d)\n",
                    module_idP,
                    frameP,
                    TBS - header_len_dcch - sdu_length_total - header_len_dtch,
                    lcid,
                    header_len_dtch);
              sdu_lengths[num_sdus] = mac_rlc_data_req(module_idP,
                                      rnti,
                                      module_idP,
                                      frameP,
                                      ENB_FLAG_YES,
                                      MBMS_FLAG_NO,
                                      lcid,
                                      TBS,  //not used
                                      (char *)&dlsch_buffer[sdu_length_total]
#ifdef Rel14
                                      , 0, 0
1469
#endif
Louis Adrien Dufrene's avatar
Louis Adrien Dufrene committed
1470 1471 1472 1473 1474 1475 1476 1477 1478 1479 1480 1481 1482 1483 1484 1485 1486 1487 1488 1489 1490 1491 1492 1493 1494 1495 1496 1497 1498 1499 1500 1501 1502
                                                      );
              T(T_ENB_MAC_UE_DL_SDU,
                T_INT(module_idP),
                T_INT(CC_id),
                T_INT(rnti),
                T_INT(frameP),
                T_INT(subframeP),
                T_INT(harq_pid),
                T_INT(lcid),
                T_INT(sdu_lengths[num_sdus]));
              LOG_D(MAC, "[eNB %d][USER-PLANE DEFAULT DRB] Got %d bytes for DTCH %d \n",
                    module_idP,
                    sdu_lengths[num_sdus],
                    lcid);
              sdu_lcids[num_sdus] = lcid;
              sdu_length_total += sdu_lengths[num_sdus];
              UE_list->eNB_UE_stats[CC_id][UE_id].num_pdu_tx[lcid] += 1;
              UE_list->eNB_UE_stats[CC_id][UE_id].num_bytes_tx[lcid] += sdu_lengths[num_sdus];

              if (sdu_lengths[num_sdus] < 128) {
                header_len_dtch--;
                header_len_dtch_last--;
              }

              num_sdus++;
              UE_list->UE_sched_ctrl[UE_id].uplane_inactivity_timer = 0;
            } else { // no data for this LCID
              header_len_dtch -= 3;
            }
          } else {  // no TBS left
            header_len_dtch -= 3;
            break;
          }
1503
        }
1504

Louis Adrien Dufrene's avatar
Louis Adrien Dufrene committed
1505 1506 1507 1508 1509 1510 1511 1512 1513 1514 1515 1516 1517 1518 1519 1520 1521 1522 1523 1524 1525 1526 1527 1528 1529 1530 1531 1532 1533 1534 1535 1536 1537 1538 1539 1540 1541 1542 1543 1544 1545 1546 1547 1548 1549 1550 1551 1552 1553 1554 1555 1556 1557 1558 1559 1560 1561 1562 1563 1564 1565 1566 1567 1568 1569 1570 1571 1572 1573 1574 1575 1576 1577 1578 1579 1580 1581 1582 1583 1584 1585 1586 1587 1588 1589 1590 1591 1592 1593 1594 1595 1596 1597 1598 1599 1600 1601 1602
        if (header_len_dtch == 0)
          header_len_dtch_last = 0;

        // there is at least one SDU
        // if (num_sdus > 0 ){
        if ((sdu_length_total + header_len_dcch +
             header_len_dtch) > 0) {
          // Now compute number of required RBs for total sdu length
          // Assume RAH format 2
          // adjust  header lengths
          header_len_dcch_tmp = header_len_dcch;
          header_len_dtch_tmp = header_len_dtch;

          if (header_len_dtch == 0) {
            header_len_dcch = (header_len_dcch > 0) ? 1 : 0;  //header_len_dcch;  // remove length field
          } else {
            header_len_dtch_last -= 1;  // now use it to find how many bytes has to be removed for the last MAC SDU
            header_len_dtch = (header_len_dtch > 0) ? header_len_dtch - header_len_dtch_last : header_len_dtch; // remove length field for the last SDU
          }

          mcs = eNB_UE_stats->dlsch_mcs1;
          nb_rb = min_rb_unit[CC_id];
          TBS = get_TBS_DL(mcs, nb_rb);

          while (TBS <
                 (sdu_length_total + header_len_dcch +
                  header_len_dtch + ta_len)) {
            nb_rb += min_rb_unit[CC_id];  //

            if (nb_rb > nb_available_rb) {  // if we've gone beyond the maximum number of RBs
              // (can happen if N_RB_DL is odd)
              TBS =
                get_TBS_DL(eNB_UE_stats->dlsch_mcs1,
                           nb_available_rb);
              nb_rb = nb_available_rb;
              break;
            }

            TBS = get_TBS_DL(eNB_UE_stats->dlsch_mcs1, nb_rb);
          }

          if (nb_rb == ue_sched_ctl->pre_nb_available_rbs[CC_id]) {
            for (j = 0; j < N_RBG[CC_id]; j++) {  // for indicating the rballoc for each sub-band
              UE_list->UE_template[CC_id][UE_id].
              rballoc_subband[harq_pid][j] =
                ue_sched_ctl->rballoc_sub_UE[CC_id][j];
            }
          } else {
            nb_rb_temp = nb_rb;
            j = 0;

            while ((nb_rb_temp > 0) && (j < N_RBG[CC_id])) {
              if (ue_sched_ctl->rballoc_sub_UE[CC_id][j] ==
                  1) {
                UE_list->
                UE_template[CC_id]
                [UE_id].rballoc_subband[harq_pid][j] =
                  ue_sched_ctl->rballoc_sub_UE[CC_id][j];

                if ((j == N_RBG[CC_id] - 1) &&
                    ((N_RB_DL[CC_id] == 25) ||
                     (N_RB_DL[CC_id] == 50))) {
                  nb_rb_temp =
                    nb_rb_temp - min_rb_unit[CC_id] +
                    1;
                } else {
                  nb_rb_temp =
                    nb_rb_temp - min_rb_unit[CC_id];
                }
              }

              j = j + 1;
            }
          }

          // decrease mcs until TBS falls below required length
          while ((TBS >
                  (sdu_length_total + header_len_dcch +
                   header_len_dtch + ta_len)) && (mcs > 0)) {
            mcs--;
            TBS = get_TBS_DL(mcs, nb_rb);
          }

          // if we have decreased too much or we don't have enough RBs, increase MCS
          while ((TBS <
                  (sdu_length_total + header_len_dcch +
                   header_len_dtch + ta_len))
                 && (((ue_sched_ctl->dl_pow_off[CC_id] > 0)
                      && (mcs < 28))
                     || ((ue_sched_ctl->dl_pow_off[CC_id] == 0)
                         && (mcs <= 15)))) {
            mcs++;
            TBS = get_TBS_DL(mcs, nb_rb);
          }

          LOG_D(MAC,
                "dlsch_mcs before and after the rate matching = (%d, %d)\n",
                eNB_UE_stats->dlsch_mcs1, mcs);
1603
#ifdef DEBUG_eNB_SCHEDULER
Louis Adrien Dufrene's avatar
Louis Adrien Dufrene committed
1604 1605 1606 1607 1608
          LOG_D(MAC,
                "[eNB %d] CC_id %d Generated DLSCH header (mcs %d, TBS %d, nb_rb %d)\n",
                module_idP, CC_id, mcs, TBS, nb_rb);
          // msg("[MAC][eNB ] Reminder of DLSCH with random data %d %d %d %d \n",
          //  TBS, sdu_length_total, offset, TBS-sdu_length_total-offset);
1609 1610
#endif

Louis Adrien Dufrene's avatar
Louis Adrien Dufrene committed
1611 1612 1613 1614 1615 1616 1617 1618 1619 1620 1621 1622 1623 1624 1625 1626 1627 1628
          if ((TBS - header_len_dcch - header_len_dtch -
               sdu_length_total - ta_len) <= 2) {
            padding =
              (TBS - header_len_dcch - header_len_dtch -
               sdu_length_total - ta_len);
            post_padding = 0;
          } else {
            padding = 0;

            // adjust the header len
            if (header_len_dtch == 0) {
              header_len_dcch = header_len_dcch_tmp;
            } else {  //if (( header_len_dcch==0)&&((header_len_dtch==1)||(header_len_dtch==2)))
              header_len_dtch = header_len_dtch_tmp;
            }

            post_padding = TBS - sdu_length_total - header_len_dcch - header_len_dtch - ta_len; // 1 is for the postpadding header
          }
1629 1630

#ifdef PHY_TX_THREAD
Louis Adrien Dufrene's avatar
Louis Adrien Dufrene committed
1631 1632 1633 1634 1635 1636 1637 1638 1639
          struct timespec time_req, time_rem;
          time_req.tv_sec = 0;
          time_req.tv_nsec = 10000;

          while((!oai_exit)&&(phy_tx_txdataF_end == 0)) {
            nanosleep(&time_req,&time_rem);
            continue;
          }

1640
#endif
Louis Adrien Dufrene's avatar
Louis Adrien Dufrene committed
1641 1642 1643 1644 1645 1646 1647 1648 1649 1650 1651 1652 1653 1654 1655 1656 1657
          offset = generate_dlsch_header((unsigned char *) UE_list->DLSCH_pdu[CC_id][0][UE_id].payload[0], num_sdus,  //num_sdus
                                         sdu_lengths, //
                                         sdu_lcids, 255,  // no drx
                                         ta_update, // timing advance
                                         NULL,  // contention res id
                                         padding, post_padding);

          //#ifdef DEBUG_eNB_SCHEDULER
          if (ta_update != 31) {
            LOG_D(MAC,
                  "[eNB %d][DLSCH] Frame %d Generate header for UE_id %d on CC_id %d: sdu_length_total %d, num_sdus %d, sdu_lengths[0] %d, sdu_lcids[0] %d => payload offset %d,timing advance value : %d, padding %d,post_padding %d,(mcs %d, TBS %d, nb_rb %d),header_dcch %d, header_dtch %d\n",
                  module_idP, frameP, UE_id, CC_id,
                  sdu_length_total, num_sdus, sdu_lengths[0],
                  sdu_lcids[0], offset, ta_update, padding,
                  post_padding, mcs, TBS, nb_rb,
                  header_len_dcch, header_len_dtch);
          }
1658

Louis Adrien Dufrene's avatar
Louis Adrien Dufrene committed
1659
          //#endif
1660
#ifdef DEBUG_eNB_SCHEDULER
Louis Adrien Dufrene's avatar
Louis Adrien Dufrene committed
1661
          LOG_T(MAC, "[eNB %d] First 16 bytes of DLSCH : \n",module_idP );
1662

Louis Adrien Dufrene's avatar
Louis Adrien Dufrene committed
1663 1664 1665
          for (k = 0; k < 16; k++) {
            LOG_T(MAC, "%x.", dlsch_buffer[k]);
          }
1666

Louis Adrien Dufrene's avatar
Louis Adrien Dufrene committed
1667
          LOG_T(MAC, "\n");
1668 1669 1670 1671 1672 1673 1674 1675 1676 1677 1678
#endif
          // cycle through SDUs and place in dlsch_buffer
          memcpy(&UE_list->DLSCH_pdu[CC_id][0][UE_id].payload[0][offset],dlsch_buffer,sdu_length_total);
          // memcpy(RC.mac[0].DLSCH_pdu[0][0].payload[0][offset],dcch_buffer,sdu_lengths[0]);

          // fill remainder of DLSCH with random data
          for (j=0; j<(TBS-sdu_length_total-offset); j++) {
            UE_list->DLSCH_pdu[CC_id][0][UE_id].payload[0][offset+sdu_length_total+j] = (char)(taus()&0xff);
          }

          if (opt_enabled == 1) {
laurent's avatar
laurent committed
1679 1680
            trace_pdu(DIRECTION_DOWNLINK, (uint8_t *)UE_list->DLSCH_pdu[CC_id][0][UE_id].payload[0],
                      TBS, module_idP, WS_RA_RNTI, UE_RNTI(module_idP,UE_id),
1681 1682 1683 1684 1685 1686 1687
                      eNB->frame, eNB->subframe,0,0);
            LOG_D(OPT,"[eNB %d][DLSCH] CC_id %d Frame %d  rnti %x  with size %d\n",
                  module_idP, CC_id, frameP, UE_RNTI(module_idP,UE_id), TBS);
          }

          T(T_ENB_MAC_UE_DL_PDU_WITH_DATA, T_INT(module_idP), T_INT(CC_id), T_INT(rnti), T_INT(frameP), T_INT(subframeP),
            T_INT(harq_pid), T_BUFFER(UE_list->DLSCH_pdu[CC_id][0][UE_id].payload[0], TBS));
Louis Adrien Dufrene's avatar
Louis Adrien Dufrene committed
1688
          UE_list->UE_template[CC_id][UE_id].nb_rb[harq_pid] = nb_rb;
1689 1690 1691 1692 1693 1694 1695 1696 1697 1698 1699 1700 1701 1702 1703 1704 1705 1706 1707 1708 1709 1710 1711
          add_ue_dlsch_info(module_idP,
                            CC_id,
                            UE_id,
                            subframeP,
                            S_DL_SCHEDULED);
          // store stats
          eNB->eNB_stats[CC_id].dlsch_bytes_tx+=sdu_length_total;
          eNB->eNB_stats[CC_id].dlsch_pdus_tx+=1;
          UE_list->eNB_UE_stats[CC_id][UE_id].rbs_used = nb_rb;
          UE_list->eNB_UE_stats[CC_id][UE_id].total_rbs_used += nb_rb;
          UE_list->eNB_UE_stats[CC_id][UE_id].dlsch_mcs1=eNB_UE_stats->dlsch_mcs1;
          UE_list->eNB_UE_stats[CC_id][UE_id].dlsch_mcs2=mcs;
          UE_list->eNB_UE_stats[CC_id][UE_id].TBS = TBS;
          UE_list->eNB_UE_stats[CC_id][UE_id].overhead_bytes= TBS- sdu_length_total;
          UE_list->eNB_UE_stats[CC_id][UE_id].total_sdu_bytes+= sdu_length_total;
          UE_list->eNB_UE_stats[CC_id][UE_id].total_pdu_bytes+= TBS;
          UE_list->eNB_UE_stats[CC_id][UE_id].total_num_pdus+=1;

          if (cc[CC_id].tdd_Config != NULL) { // TDD
            UE_list->UE_template[CC_id][UE_id].DAI++;
            update_ul_dci(module_idP,CC_id,rnti,UE_list->UE_template[CC_id][UE_id].DAI,subframeP);
          }

Louis Adrien Dufrene's avatar
Louis Adrien Dufrene committed
1712
          // do PUCCH power control
1713
          // this is the normalized RX power
Louis Adrien Dufrene's avatar
Louis Adrien Dufrene committed
1714
          eNB_UE_stats =  &UE_list->eNB_UE_stats[CC_id][UE_id];
1715
          /* Unit is not dBm, it's special from nfapi */
Louis Adrien Dufrene's avatar
Louis Adrien Dufrene committed
1716 1717
          normalized_rx_power = (5*ue_sched_ctl->pucch1_snr[CC_id]-640)/10+30;//(+eNB->measurements.n0_power_dB[0])
          target_rx_power= eNB->puCch10xSnr/10 + 30;//(+eNB->measurements.n0_power_dB[0])
1718
          // this assumes accumulated tpc
Louis Adrien Dufrene's avatar
Louis Adrien Dufrene committed
1719 1720 1721
          // make sure that we are only sending a tpc update once a frame, otherwise the control loop will freak out
          int32_t framex10psubframe = UE_list->UE_template[CC_id][UE_id].pucch_tpc_tx_frame*10+UE_list->UE_template[CC_id][UE_id].pucch_tpc_tx_subframe;

1722
          if (((framex10psubframe+10)<=(frameP*10+subframeP)) || //normal case
Louis Adrien Dufrene's avatar
Louis Adrien Dufrene committed
1723 1724 1725 1726 1727 1728 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 1755 1756 1757 1758 1759 1760 1761 1762 1763 1764 1765 1766 1767 1768 1769 1770 1771 1772 1773 1774 1775 1776 1777
              ((framex10psubframe>(frameP*10+subframeP)) && (((10240-framex10psubframe+frameP*10+subframeP)>=10)))) //frame wrap-around
            if (ue_sched_ctl->pucch1_cqi_update[CC_id] == 1) {
              ue_sched_ctl->pucch1_cqi_update[CC_id] = 0;
              UE_list->UE_template[CC_id][UE_id].pucch_tpc_tx_frame=frameP;
              UE_list->UE_template[CC_id][UE_id].pucch_tpc_tx_subframe=subframeP;

              if (normalized_rx_power>(target_rx_power+4)) {
                tpc = 0; //-1
                tpc_accumulated--;
              } else if (normalized_rx_power<(target_rx_power-4)) {
                tpc = 2; //+1
                tpc_accumulated++;
              } else {
                tpc = 1; //0
              }

              LOG_D(MAC,"[eNB %d] DLSCH scheduler: frame %d, subframe %d, harq_pid %d, tpc %d, accumulated %d, normalized/target rx power %d/%d\n",
                    module_idP,frameP, subframeP,harq_pid,tpc,
                    tpc_accumulated,normalized_rx_power,target_rx_power);
            } // Po_PUCCH has been updated
            else {
              tpc = 1; //0
            } // time to do TPC update
          else {
            tpc = 1; //0
          }

          dl_config_pdu                                                         = &dl_req->dl_config_pdu_list[dl_req->number_pdu];
          memset((void *)dl_config_pdu,0,sizeof(nfapi_dl_config_request_pdu_t));
          dl_config_pdu->pdu_type                                               = NFAPI_DL_CONFIG_DCI_DL_PDU_TYPE;
          dl_config_pdu->pdu_size                                               = (uint8_t)(2+sizeof(nfapi_dl_config_dci_dl_pdu));
          dl_config_pdu->dci_dl_pdu.dci_dl_pdu_rel8.dci_format                  = NFAPI_DL_DCI_FORMAT_1;
          dl_config_pdu->dci_dl_pdu.dci_dl_pdu_rel8.aggregation_level           = get_aggregation(get_bw_index(module_idP,CC_id),ue_sched_ctl->dl_cqi[CC_id],format1);
          dl_config_pdu->dci_dl_pdu.dci_dl_pdu_rel8.rnti                        = rnti;
          dl_config_pdu->dci_dl_pdu.dci_dl_pdu_rel8.rnti_type                   = 1;    // CRNTI : see Table 4-10 from SCF082 - nFAPI specifications
          dl_config_pdu->dci_dl_pdu.dci_dl_pdu_rel8.transmission_power          = 6000; // equal to RS power
          dl_config_pdu->dci_dl_pdu.dci_dl_pdu_rel8.harq_process                = harq_pid;
          dl_config_pdu->dci_dl_pdu.dci_dl_pdu_rel8.tpc                         = tpc; // dont adjust power when retransmitting
          dl_config_pdu->dci_dl_pdu.dci_dl_pdu_rel8.new_data_indicator_1        = 1-UE_list->UE_template[CC_id][UE_id].oldNDI[harq_pid];
          dl_config_pdu->dci_dl_pdu.dci_dl_pdu_rel8.mcs_1                       = mcs;
          dl_config_pdu->dci_dl_pdu.dci_dl_pdu_rel8.redundancy_version_1        = 0;
          //deactivate second codeword
          dl_config_pdu->dci_dl_pdu.dci_dl_pdu_rel8.mcs_2                       = 0;
          dl_config_pdu->dci_dl_pdu.dci_dl_pdu_rel8.redundancy_version_2        = 1;

          if (cc[CC_id].tdd_Config != NULL) { //TDD
            dl_config_pdu->dci_dl_pdu.dci_dl_pdu_rel8.downlink_assignment_index = (UE_list->UE_template[CC_id][UE_id].DAI-1)&3;
            LOG_D(MAC,"[eNB %d] Initial transmission CC_id %d : harq_pid %d, dai %d, mcs %d\n",
                  module_idP,CC_id,harq_pid,
                  (UE_list->UE_template[CC_id][UE_id].DAI-1),
                  mcs);
          } else {
            LOG_D(MAC,"[eNB %d] Initial transmission CC_id %d : harq_pid %d, mcs %d\n",
                  module_idP,CC_id,harq_pid,mcs);
          }
1778

Louis Adrien Dufrene's avatar
Louis Adrien Dufrene committed
1779 1780 1781 1782 1783 1784 1785 1786 1787 1788 1789 1790 1791 1792 1793 1794 1795 1796 1797 1798 1799 1800 1801 1802 1803 1804 1805 1806 1807 1808 1809 1810 1811 1812 1813 1814 1815 1816 1817 1818 1819 1820 1821 1822 1823 1824 1825 1826 1827 1828 1829 1830 1831 1832 1833 1834
          LOG_D(MAC,"Checking feasibility pdu %d (new sdu)\n",dl_req->number_pdu);

          if (!CCE_allocation_infeasible(module_idP,CC_id,1,subframeP,dl_config_pdu->dci_dl_pdu.dci_dl_pdu_rel8.aggregation_level,rnti)) {
            ue_sched_ctl->round[CC_id][harq_pid] = 0;
            dl_req->number_dci++;
            dl_req->number_pdu++;
            dl_req->tl.tag = NFAPI_DL_CONFIG_REQUEST_BODY_TAG;
            eNB->DL_req[CC_id].sfn_sf = frameP<<4 | subframeP;
            eNB->DL_req[CC_id].header.message_id = NFAPI_DL_CONFIG_REQUEST;
            // Toggle NDI for next time
            LOG_D(MAC,"CC_id %d Frame %d, subframeP %d: Toggling Format1 NDI for UE %d (rnti %x/%d) oldNDI %d\n",
                  CC_id, frameP,subframeP,UE_id,
                  rnti,harq_pid,UE_list->UE_template[CC_id][UE_id].oldNDI[harq_pid]);
            UE_list->UE_template[CC_id][UE_id].oldNDI[harq_pid]=1-UE_list->UE_template[CC_id][UE_id].oldNDI[harq_pid];
            UE_list->UE_template[CC_id][UE_id].oldmcs1[harq_pid] = mcs;
            UE_list->UE_template[CC_id][UE_id].oldmcs2[harq_pid] = 0;
            AssertFatal(UE_list->UE_template[CC_id][UE_id].physicalConfigDedicated!=NULL,"physicalConfigDedicated is NULL\n");
            AssertFatal(UE_list->UE_template[CC_id][UE_id].physicalConfigDedicated->pdsch_ConfigDedicated!=NULL,"physicalConfigDedicated->pdsch_ConfigDedicated is NULL\n");
            fill_nfapi_dlsch_config(eNB,dl_req,
                                    TBS,
                                    eNB->pdu_index[CC_id],
                                    rnti,
                                    0, // type 0 allocation from 7.1.6 in 36.213
                                    0, // virtual_resource_block_assignment_flag, unused here
                                    0, // resource_block_coding, to be filled in later
                                    getQm(mcs),
                                    0, // redundancy version
                                    1, // transport blocks
                                    0, // transport block to codeword swap flag
                                    cc[CC_id].p_eNB == 1 ? 0 : 1, // transmission_scheme
                                    1, // number of layers
                                    1, // number of subbands
                                    //           uint8_t codebook_index,
                                    4, // UE category capacity
                                    UE_list->UE_template[CC_id][UE_id].physicalConfigDedicated->pdsch_ConfigDedicated->p_a,
                                    0, // delta_power_offset for TM5
                                    0, // ngap
                                    0, // nprb
                                    cc[CC_id].p_eNB == 1 ? 1 : 2, // transmission mode
                                    0, //number of PRBs treated as one subband, not used here
                                    0 // number of beamforming vectors, not used here
                                   );
            eNB->TX_req[CC_id].sfn_sf = fill_nfapi_tx_req(&eNB->TX_req[CC_id].tx_request_body,
                                        (frameP*10)+subframeP,
                                        TBS,
                                        eNB->pdu_index[CC_id],
                                        eNB->UE_list.DLSCH_pdu[CC_id][0][(unsigned char)UE_id].payload[0]);
            LOG_D(MAC,"Filled NFAPI configuration for DCI/DLSCH/TXREQ %d, new SDU\n",eNB->pdu_index[CC_id]);
            eNB->pdu_index[CC_id]++;
            program_dlsch_acknak(module_idP,CC_id,UE_id,frameP,subframeP,dl_config_pdu->dci_dl_pdu.dci_dl_pdu_rel8.cce_idx);
            last_dlsch_ue_id[CC_id] = UE_id;
          } else {
            LOG_W(MAC,"Frame %d, Subframe %d: Dropping DLSCH allocation for UE %d/%x, infeasible CCE allocations\n",
                  frameP,subframeP,UE_id,rnti);
          }
        } else {  // There is no data from RLC or MAC header, so don't schedule
1835 1836 1837
        }
      }

Louis Adrien Dufrene's avatar
Louis Adrien Dufrene committed
1838
      if (cc[CC_id].tdd_Config != NULL) { // TDD
1839 1840 1841 1842 1843 1844 1845 1846 1847 1848 1849 1850 1851
        set_ul_DAI(module_idP,UE_id,CC_id,frameP,subframeP);
      }
    } // UE_id loop
  }  // CC_id loop

  fill_DLSCH_dci_fairRR(module_idP,frameP,subframeP,mbsfn_flag);
  stop_meas(&eNB->schedule_dlsch);
  VCD_SIGNAL_DUMPER_DUMP_FUNCTION_BY_NAME(VCD_SIGNAL_DUMPER_FUNCTIONS_SCHEDULE_DLSCH,VCD_FUNCTION_OUT);
}

//------------------------------------------------------------------------------
void
fill_DLSCH_dci_fairRR(
Louis Adrien Dufrene's avatar
Louis Adrien Dufrene committed
1852 1853 1854 1855
  module_id_t module_idP,
  frame_t frameP,
  sub_frame_t subframeP,
  int *mbsfn_flagP)
1856 1857 1858 1859 1860 1861 1862 1863 1864 1865 1866 1867 1868 1869 1870 1871 1872 1873 1874 1875 1876 1877 1878 1879 1880 1881 1882 1883 1884 1885 1886 1887 1888 1889
//------------------------------------------------------------------------------
{
  // loop over all allocated UEs and compute frequency allocations for PDSCH
  int   UE_id = -1;
  uint8_t            /* first_rb, */ nb_rb=3;
  rnti_t        rnti;
  //unsigned char *vrb_map;
  uint8_t            rballoc_sub[25];
  //uint8_t number_of_subbands=13;
  //unsigned char round;
  unsigned char     harq_pid;
  int               i;
  int               CC_id;
  eNB_MAC_INST      *eNB  =RC.mac[module_idP];
  UE_list_t         *UE_list = &eNB->UE_list;
  int               N_RBG;
  int               N_RB_DL;
  COMMON_channels_t *cc;
  int               j;
  start_meas(&eNB->fill_DLSCH_dci);
  VCD_SIGNAL_DUMPER_DUMP_FUNCTION_BY_NAME(VCD_SIGNAL_DUMPER_FUNCTIONS_FILL_DLSCH_DCI,VCD_FUNCTION_IN);

  for (CC_id=0; CC_id<MAX_NUM_CCs; CC_id++) {
    LOG_D(MAC,"Doing fill DCI for CC_id %d\n",CC_id);

    if (mbsfn_flagP[CC_id]>0)
      continue;

    cc              = &eNB->common_channels[CC_id];
    N_RBG           = to_rbg(cc->mib->message.dl_Bandwidth);
    N_RB_DL         = to_prb(cc->mib->message.dl_Bandwidth);

    // UE specific DCIs
    for (j = 0; j < dlsch_ue_select[CC_id].ue_num; j++) {
Louis Adrien Dufrene's avatar
Louis Adrien Dufrene committed
1890
      if(dlsch_ue_select[CC_id].list[j].ue_priority == SCH_DL_MSG2) {
1891 1892
        continue;
      }
Louis Adrien Dufrene's avatar
Louis Adrien Dufrene committed
1893 1894

      if(dlsch_ue_select[CC_id].list[j].ue_priority == SCH_DL_MSG4) {
1895 1896
        continue;
      }
Louis Adrien Dufrene's avatar
Louis Adrien Dufrene committed
1897

1898 1899 1900 1901 1902 1903 1904
      UE_id = dlsch_ue_select[CC_id].list[j].UE_id;
      LOG_T(MAC,"CC_id %d, UE_id: %d => status %d\n",CC_id,UE_id,eNB_dlsch_info[module_idP][CC_id][UE_id].status);

      if (eNB_dlsch_info[module_idP][CC_id][UE_id].status == S_DL_SCHEDULED) {
        // clear scheduling flag
        eNB_dlsch_info[module_idP][CC_id][UE_id].status = S_DL_WAITING;
        rnti = UE_RNTI(module_idP,UE_id);
Louis Adrien Dufrene's avatar
Louis Adrien Dufrene committed
1905
        harq_pid = frame_subframe2_dl_harq_pid(cc->tdd_Config,frameP,subframeP);
1906 1907 1908 1909 1910 1911 1912
        nb_rb = UE_list->UE_template[CC_id][UE_id].nb_rb[harq_pid];

        /// Synchronizing rballoc with rballoc_sub
        for(i=0; i<N_RBG; i++) {
          rballoc_sub[i] = UE_list->UE_template[CC_id][UE_id].rballoc_subband[harq_pid][i];
        }

Louis Adrien Dufrene's avatar
Louis Adrien Dufrene committed
1913 1914 1915 1916 1917 1918 1919 1920 1921 1922 1923 1924 1925 1926 1927 1928 1929
        nfapi_dl_config_request_t      *DL_req         = &RC.mac[module_idP]->DL_req[0];
        nfapi_dl_config_request_pdu_t *dl_config_pdu;

        for (i=0; i<DL_req[CC_id].dl_config_request_body.number_pdu; i++) {
          dl_config_pdu                    = &DL_req[CC_id].dl_config_request_body.dl_config_pdu_list[i];

          if ((dl_config_pdu->pdu_type == NFAPI_DL_CONFIG_DCI_DL_PDU_TYPE)&&
              (dl_config_pdu->dci_dl_pdu.dci_dl_pdu_rel8.rnti == rnti) &&
              (dl_config_pdu->dci_dl_pdu.dci_dl_pdu_rel8.dci_format != 1)) {
            dl_config_pdu->dci_dl_pdu.dci_dl_pdu_rel8.resource_block_coding    = allocate_prbs_sub(nb_rb,N_RB_DL,N_RBG,rballoc_sub);
            dl_config_pdu->dci_dl_pdu.dci_dl_pdu_rel8.resource_allocation_type = 0;
          } else if ((dl_config_pdu->pdu_type == NFAPI_DL_CONFIG_DLSCH_PDU_TYPE)&&
                     (dl_config_pdu->dlsch_pdu.dlsch_pdu_rel8.rnti == rnti) &&
                     (dl_config_pdu->dlsch_pdu.dlsch_pdu_rel8.resource_allocation_type==0)) {
            dl_config_pdu->dlsch_pdu.dlsch_pdu_rel8.resource_block_coding    = allocate_prbs_sub(nb_rb,N_RB_DL,N_RBG,rballoc_sub);
          }
        }
1930 1931
      }
    }
Louis Adrien Dufrene's avatar
Louis Adrien Dufrene committed
1932
  }
1933

Louis Adrien Dufrene's avatar
Louis Adrien Dufrene committed
1934 1935 1936
  stop_meas(&eNB->fill_DLSCH_dci);
  VCD_SIGNAL_DUMPER_DUMP_FUNCTION_BY_NAME
  (VCD_SIGNAL_DUMPER_FUNCTIONS_FILL_DLSCH_DCI, VCD_FUNCTION_OUT);
1937 1938 1939 1940 1941
}



void ulsch_scheduler_pre_ue_select_fairRR(
Louis Adrien Dufrene's avatar
Louis Adrien Dufrene committed
1942 1943 1944 1945 1946
  module_id_t       module_idP,
  frame_t           frameP,
  sub_frame_t       subframeP,
  sub_frame_t       sched_subframeP,
  ULSCH_UE_SELECT   ulsch_ue_select[MAX_NUM_CCs]) {
1947 1948 1949 1950 1951 1952 1953 1954 1955 1956
  eNB_MAC_INST *eNB=RC.mac[module_idP];
  COMMON_channels_t *cc;
  int CC_id,UE_id;
  int ret;
  uint16_t i;
  uint8_t ue_first_num[MAX_NUM_CCs];
  uint8_t first_ue_total[MAX_NUM_CCs][20];
  uint8_t first_ue_id[MAX_NUM_CCs][20];
  uint8_t ul_inactivity_num[MAX_NUM_CCs];
  uint8_t ul_inactivity_id[MAX_NUM_CCs][20];
Louis Adrien Dufrene's avatar
Louis Adrien Dufrene committed
1957
  //  LTE_DL_FRAME_PARMS *frame_parms;
1958 1959 1960 1961 1962 1963 1964 1965 1966 1967 1968 1969 1970
  uint8_t ulsch_ue_max_num[MAX_NUM_CCs];
  uint16_t saved_ulsch_dci[MAX_NUM_CCs];
  rnti_t rnti;
  UE_sched_ctrl *UE_sched_ctl = NULL;
  uint8_t cc_id_flag[MAX_NUM_CCs];
  uint8_t harq_pid = 0,round = 0;
  UE_list_t *UE_list= &eNB->UE_list;
  uint8_t                        aggregation = 2;
  int                            format_flag;
  nfapi_hi_dci0_request_body_t   *HI_DCI0_req;
  nfapi_hi_dci0_request_pdu_t    *hi_dci0_pdu;

  for ( CC_id = 0; CC_id < MAX_NUM_CCs; CC_id++ ) {
Louis Adrien Dufrene's avatar
Louis Adrien Dufrene committed
1971 1972 1973 1974 1975 1976 1977
    //save ulsch dci number
    saved_ulsch_dci[CC_id] = eNB->HI_DCI0_req[CC_id][subframeP].hi_dci0_request_body.number_of_dci;
    // maximum multiplicity number
    ulsch_ue_max_num[CC_id] =RC.rrc[module_idP]->configuration.ue_multiple_max[CC_id];
    cc_id_flag[CC_id] = 0;
    ue_first_num[CC_id] = 0;
    ul_inactivity_num[CC_id] = 0;
1978
  }
Louis Adrien Dufrene's avatar
Louis Adrien Dufrene committed
1979

1980 1981
  // UE round >0
  for ( UE_id = 0; UE_id < NUMBER_OF_UE_MAX; UE_id++ ) {
Louis Adrien Dufrene's avatar
Louis Adrien Dufrene committed
1982 1983
    if (UE_list->active[UE_id] == FALSE)
      continue;
1984

Louis Adrien Dufrene's avatar
Louis Adrien Dufrene committed
1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 1998 1999 2000 2001 2002 2003 2004 2005 2006
    rnti = UE_RNTI(module_idP,UE_id);

    if (rnti ==NOT_A_RNTI)
      continue;

    CC_id = UE_PCCID(module_idP,UE_id);

    if (UE_list->UE_template[CC_id][UE_id].configured == FALSE)
      continue;

    if (UE_list->UE_sched_ctrl[UE_id].ul_out_of_sync == 1)
      continue;

    // UL DCI
    HI_DCI0_req   = &eNB->HI_DCI0_req[CC_id][subframeP].hi_dci0_request_body;

    if ( (ulsch_ue_select[CC_id].ue_num >= ulsch_ue_max_num[CC_id]) || (cc_id_flag[CC_id] == 1) ) {
      cc_id_flag[CC_id] = 1;
      HI_DCI0_req->number_of_dci = saved_ulsch_dci[CC_id];
      ret = cc_id_end(cc_id_flag);

      if ( ret == 0 ) {
2007
        continue;
Louis Adrien Dufrene's avatar
Louis Adrien Dufrene committed
2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 2018 2019 2020 2021 2022 2023
      }

      if ( ret == 1 ) {
        return;
      }
    }

    cc = &eNB->common_channels[CC_id];
    //harq_pid
    harq_pid = subframe2harqpid(cc,(frameP+(sched_subframeP<subframeP ? 1 : 0)),sched_subframeP);
    //round
    round = UE_list->UE_sched_ctrl[UE_id].round_UL[CC_id][harq_pid];

    if ( round > 0 ) {
      hi_dci0_pdu   = &HI_DCI0_req->hi_dci0_pdu_list[HI_DCI0_req->number_of_dci+HI_DCI0_req->number_of_hi];
      format_flag = 2;
2024

Louis Adrien Dufrene's avatar
Louis Adrien Dufrene committed
2025 2026 2027 2028 2029 2030 2031 2032 2033 2034 2035 2036 2037
      if (CCE_allocation_infeasible(module_idP,CC_id,format_flag,subframeP,aggregation,rnti) == 1) {
        cc_id_flag[CC_id] = 1;
        continue;
      } else {
        hi_dci0_pdu->pdu_type                               = NFAPI_HI_DCI0_DCI_PDU_TYPE;
        hi_dci0_pdu->dci_pdu.dci_pdu_rel8.rnti              = rnti;
        hi_dci0_pdu->dci_pdu.dci_pdu_rel8.aggregation_level = aggregation;
        HI_DCI0_req->number_of_dci++;
        ulsch_ue_select[CC_id].list[ulsch_ue_select[CC_id].ue_num].ue_priority = SCH_UL_RETRANS;
        ulsch_ue_select[CC_id].list[ulsch_ue_select[CC_id].ue_num].start_rb = eNB->UE_list.UE_template[CC_id][UE_id].first_rb_ul[harq_pid];
        ulsch_ue_select[CC_id].list[ulsch_ue_select[CC_id].ue_num].nb_rb = eNB->UE_list.UE_template[CC_id][UE_id].nb_rb_ul[harq_pid];
        ulsch_ue_select[CC_id].list[ulsch_ue_select[CC_id].ue_num].UE_id = UE_id;
        ulsch_ue_select[CC_id].ue_num++;
2038
        continue;
Louis Adrien Dufrene's avatar
Louis Adrien Dufrene committed
2039 2040
      }
    }
2041

Louis Adrien Dufrene's avatar
Louis Adrien Dufrene committed
2042 2043 2044 2045 2046 2047 2048 2049 2050 2051
    //
    int bytes_to_schedule = UE_list->UE_template[CC_id][UE_id].estimated_ul_buffer - UE_list->UE_template[CC_id][UE_id].scheduled_ul_bytes;

    if (bytes_to_schedule < 0) bytes_to_schedule = 0;

    if ( UE_id > last_ulsch_ue_id[CC_id] && ((ulsch_ue_select[CC_id].ue_num+ue_first_num[CC_id]) < ulsch_ue_max_num[CC_id]) ) {
      if ( bytes_to_schedule > 0 ) {
        first_ue_id[CC_id][ue_first_num[CC_id]]= UE_id;
        first_ue_total[CC_id][ue_first_num[CC_id]] = bytes_to_schedule;
        ue_first_num[CC_id]++;
2052
        continue;
Louis Adrien Dufrene's avatar
Louis Adrien Dufrene committed
2053
      }
2054

Louis Adrien Dufrene's avatar
Louis Adrien Dufrene committed
2055 2056 2057 2058 2059
      if ( UE_list->UE_template[CC_id][UE_id].ul_SR > 0 ) {
        first_ue_id[CC_id][ue_first_num[CC_id]]= UE_id;
        first_ue_total[CC_id] [ue_first_num[CC_id]] = 0;
        ue_first_num[CC_id]++;
        continue;
2060 2061
      }

Louis Adrien Dufrene's avatar
Louis Adrien Dufrene committed
2062
      UE_sched_ctl = &UE_list->UE_sched_ctrl[UE_id];
2063

Louis Adrien Dufrene's avatar
Louis Adrien Dufrene committed
2064 2065 2066 2067 2068 2069
      if ( ((UE_sched_ctl->ul_inactivity_timer>20)&&(UE_sched_ctl->ul_scheduled==0))  ||
           ((UE_sched_ctl->ul_inactivity_timer>10)&&(UE_sched_ctl->ul_scheduled==0)&&(mac_eNB_get_rrc_status(module_idP,UE_RNTI(module_idP,UE_id)) < RRC_CONNECTED))) {
        first_ue_id[CC_id][ue_first_num[CC_id]]= UE_id;
        first_ue_total[CC_id] [ue_first_num[CC_id]] = 0;
        ue_first_num[CC_id]++;
        continue;
2070
      }
2071

Louis Adrien Dufrene's avatar
Louis Adrien Dufrene committed
2072 2073 2074 2075 2076 2077 2078 2079 2080
      /*if ( (ulsch_ue_select[CC_id].ue_num+ul_inactivity_num[CC_id] ) < ulsch_ue_max_num[CC_id] ) {
          UE_sched_ctl = &UE_list->UE_sched_ctrl[UE_id];
          uint8_t ul_period = 0;
          if (cc->tdd_Config) {
            ul_period = 50;
          } else {
            ul_period = 20;
          }
          if ( ((UE_sched_ctl->ul_inactivity_timer>ul_period)&&(UE_sched_ctl->ul_scheduled==0))  ||
2081
            ((UE_sched_ctl->ul_inactivity_timer>10)&&(UE_sched_ctl->ul_scheduled==0)&&(mac_eNB_get_rrc_status(module_idP,UE_RNTI(module_idP,UE_id)) < RRC_CONNECTED))) {
Louis Adrien Dufrene's avatar
Louis Adrien Dufrene committed
2082 2083
          ul_inactivity_id[CC_id][ul_inactivity_num[CC_id]]= UE_id;
          ul_inactivity_num[CC_id] ++;
2084 2085
          continue;
        }
Louis Adrien Dufrene's avatar
Louis Adrien Dufrene committed
2086 2087
      }*/
    }
2088 2089 2090 2091
  }

  for ( CC_id = 0; CC_id < MAX_NUM_CCs; CC_id++ ) {
    HI_DCI0_req   = &eNB->HI_DCI0_req[CC_id][subframeP].hi_dci0_request_body;
Louis Adrien Dufrene's avatar
Louis Adrien Dufrene committed
2092

2093 2094 2095 2096 2097 2098 2099 2100 2101 2102
    for ( int temp = 0; temp < ue_first_num[CC_id]; temp++ ) {
      if ( (ulsch_ue_select[CC_id].ue_num >= ulsch_ue_max_num[CC_id]) || (cc_id_flag[CC_id] == 1) ) {
        cc_id_flag[CC_id] = 1;
        HI_DCI0_req->number_of_dci = saved_ulsch_dci[CC_id];
        break;
      }

      hi_dci0_pdu   = &HI_DCI0_req->hi_dci0_pdu_list[HI_DCI0_req->number_of_dci+HI_DCI0_req->number_of_hi];
      format_flag = 2;
      rnti = UE_RNTI(module_idP,first_ue_id[CC_id][temp]);
Louis Adrien Dufrene's avatar
Louis Adrien Dufrene committed
2103

2104
      if (CCE_allocation_infeasible(module_idP,CC_id,format_flag,subframeP,aggregation,rnti) == 1) {
Louis Adrien Dufrene's avatar
Louis Adrien Dufrene committed
2105 2106
        cc_id_flag[CC_id] = 1;
        break;
2107
      } else {
Louis Adrien Dufrene's avatar
Louis Adrien Dufrene committed
2108 2109 2110 2111 2112 2113 2114 2115
        hi_dci0_pdu->pdu_type                               = NFAPI_HI_DCI0_DCI_PDU_TYPE;
        hi_dci0_pdu->dci_pdu.dci_pdu_rel8.rnti              = rnti;
        hi_dci0_pdu->dci_pdu.dci_pdu_rel8.aggregation_level = aggregation;
        HI_DCI0_req->number_of_dci++;
        ulsch_ue_select[CC_id].list[ulsch_ue_select[CC_id].ue_num].ue_priority = SCH_UL_FIRST;
        ulsch_ue_select[CC_id].list[ulsch_ue_select[CC_id].ue_num].ul_total_buffer = first_ue_total[CC_id][temp];
        ulsch_ue_select[CC_id].list[ulsch_ue_select[CC_id].ue_num].UE_id = first_ue_id[CC_id][temp];
        ulsch_ue_select[CC_id].ue_num++;
2116 2117 2118 2119 2120 2121
      }
    }
  }

  for ( UE_id = 0; UE_id < NUMBER_OF_UE_MAX; UE_id++ ) {
    if (UE_list->active[UE_id] == FALSE)
Louis Adrien Dufrene's avatar
Louis Adrien Dufrene committed
2122
      continue;
2123 2124

    rnti = UE_RNTI(module_idP,UE_id);
Louis Adrien Dufrene's avatar
Louis Adrien Dufrene committed
2125

2126
    if (rnti ==NOT_A_RNTI)
Louis Adrien Dufrene's avatar
Louis Adrien Dufrene committed
2127
      continue;
2128 2129 2130 2131

    CC_id = UE_PCCID(module_idP,UE_id);

    if (UE_id > last_ulsch_ue_id[CC_id])
Louis Adrien Dufrene's avatar
Louis Adrien Dufrene committed
2132
      continue;
2133 2134

    if (UE_list->UE_template[CC_id][UE_id].configured == FALSE)
Louis Adrien Dufrene's avatar
Louis Adrien Dufrene committed
2135
      continue;
2136 2137

    if (UE_list->UE_sched_ctrl[UE_id].ul_out_of_sync == 1)
Louis Adrien Dufrene's avatar
Louis Adrien Dufrene committed
2138
      continue;
2139 2140

    if ( (ulsch_ue_select[CC_id].ue_num >= ulsch_ue_max_num[CC_id]) || (cc_id_flag[CC_id] == 1) ) {
Louis Adrien Dufrene's avatar
Louis Adrien Dufrene committed
2141 2142 2143 2144 2145 2146 2147 2148 2149 2150 2151
      cc_id_flag[CC_id] = 1;
      HI_DCI0_req->number_of_dci = saved_ulsch_dci[CC_id];
      ret = cc_id_end(cc_id_flag);

      if ( ret == 0 ) {
        continue;
      }

      if ( ret == 1 ) {
        return;
      }
2152 2153
    }

Louis Adrien Dufrene's avatar
Louis Adrien Dufrene committed
2154 2155 2156
    for(i = 0; i<ulsch_ue_select[CC_id].ue_num; i++) {
      if(ulsch_ue_select[CC_id].list[i].UE_id == UE_id) {
        break;
2157 2158
      }
    }
Louis Adrien Dufrene's avatar
Louis Adrien Dufrene committed
2159

2160 2161 2162 2163 2164
    if(i < ulsch_ue_select[CC_id].ue_num)
      continue;

    HI_DCI0_req   = &eNB->HI_DCI0_req[CC_id][subframeP].hi_dci0_request_body;
    //SR BSR
Louis Adrien Dufrene's avatar
Louis Adrien Dufrene committed
2165
    UE_sched_ctl = &UE_list->UE_sched_ctrl[UE_id];
2166
    int bytes_to_schedule = UE_list->UE_template[CC_id][UE_id].estimated_ul_buffer - UE_list->UE_template[CC_id][UE_id].scheduled_ul_bytes;
Louis Adrien Dufrene's avatar
Louis Adrien Dufrene committed
2167

2168 2169 2170
    if (bytes_to_schedule < 0) bytes_to_schedule = 0;

    if ( (bytes_to_schedule > 0) || (UE_list->UE_template[CC_id][UE_id].ul_SR > 0) ||
Louis Adrien Dufrene's avatar
Louis Adrien Dufrene committed
2171 2172 2173 2174 2175 2176 2177 2178 2179 2180 2181 2182 2183 2184 2185 2186 2187 2188 2189 2190 2191 2192 2193 2194
         ((UE_sched_ctl->ul_inactivity_timer>20)&&(UE_sched_ctl->ul_scheduled==0))  ||
         ((UE_sched_ctl->ul_inactivity_timer>10)&&(UE_sched_ctl->ul_scheduled==0)&&(mac_eNB_get_rrc_status(module_idP,UE_RNTI(module_idP,UE_id)) < RRC_CONNECTED)) ) {
      hi_dci0_pdu   = &HI_DCI0_req->hi_dci0_pdu_list[HI_DCI0_req->number_of_dci+HI_DCI0_req->number_of_hi];
      format_flag = 2;

      if (CCE_allocation_infeasible(module_idP,CC_id,format_flag,subframeP,aggregation,rnti) == 1) {
        cc_id_flag[CC_id] = 1;
        continue;
      } else {
        hi_dci0_pdu->pdu_type                               = NFAPI_HI_DCI0_DCI_PDU_TYPE;
        hi_dci0_pdu->dci_pdu.dci_pdu_rel8.rnti              = rnti;
        hi_dci0_pdu->dci_pdu.dci_pdu_rel8.aggregation_level = aggregation;
        HI_DCI0_req->number_of_dci++;
        ulsch_ue_select[CC_id].list[ulsch_ue_select[CC_id].ue_num].ue_priority = SCH_UL_FIRST;

        if(bytes_to_schedule > 0)
          ulsch_ue_select[CC_id].list[ulsch_ue_select[CC_id].ue_num].ul_total_buffer = bytes_to_schedule;
        else if(UE_list->UE_template[CC_id][UE_id].ul_SR > 0)
          ulsch_ue_select[CC_id].list[ulsch_ue_select[CC_id].ue_num].ul_total_buffer = 0;

        ulsch_ue_select[CC_id].list[ulsch_ue_select[CC_id].ue_num].UE_id = UE_id;
        ulsch_ue_select[CC_id].ue_num++;
        continue;
      }
2195
    }
Louis Adrien Dufrene's avatar
Louis Adrien Dufrene committed
2196

2197
    //inactivity UE
Louis Adrien Dufrene's avatar
Louis Adrien Dufrene committed
2198 2199 2200 2201 2202 2203 2204 2205 2206 2207 2208 2209 2210 2211 2212
    /*    if ( (ulsch_ue_select[CC_id].ue_num+ul_inactivity_num[CC_id]) < ulsch_ue_max_num[CC_id] ) {
            UE_sched_ctl = &UE_list->UE_sched_ctrl[UE_id];
            uint8_t ul_period = 0;
            if (cc->tdd_Config) {
              ul_period = 50;
            } else {
              ul_period = 20;
            }
            if ( ((UE_sched_ctl->ul_inactivity_timer>ul_period)&&(UE_sched_ctl->ul_scheduled==0))  ||
                ((UE_sched_ctl->ul_inactivity_timer>10)&&(UE_sched_ctl->ul_scheduled==0)&&(mac_eNB_get_rrc_status(module_idP,UE_RNTI(module_idP,UE_id)) < RRC_CONNECTED))) {
              ul_inactivity_id[CC_id][ul_inactivity_num[CC_id]]= UE_id;
              ul_inactivity_num[CC_id]++;
              continue;
            }
        }*/
2213 2214 2215 2216
  }

  for ( CC_id = 0; CC_id < MAX_NUM_CCs; CC_id++ ) {
    HI_DCI0_req   = &eNB->HI_DCI0_req[CC_id][subframeP].hi_dci0_request_body;
Louis Adrien Dufrene's avatar
Louis Adrien Dufrene committed
2217

2218 2219 2220 2221 2222 2223 2224 2225 2226 2227
    for ( int temp = 0; temp < ul_inactivity_num[CC_id]; temp++ ) {
      if ( (ulsch_ue_select[CC_id].ue_num >= ulsch_ue_max_num[CC_id]) || (cc_id_flag[CC_id] == 1) ) {
        HI_DCI0_req   = &eNB->HI_DCI0_req[CC_id][subframeP].hi_dci0_request_body;
        cc_id_flag[CC_id] = 1;
        break;
      }

      hi_dci0_pdu   = &HI_DCI0_req->hi_dci0_pdu_list[HI_DCI0_req->number_of_dci+HI_DCI0_req->number_of_hi];
      format_flag = 2;
      rnti = UE_RNTI(module_idP,ul_inactivity_id[CC_id][temp]);
Louis Adrien Dufrene's avatar
Louis Adrien Dufrene committed
2228

2229
      if (CCE_allocation_infeasible(module_idP,CC_id,format_flag,subframeP,aggregation,rnti) == 1) {
Louis Adrien Dufrene's avatar
Louis Adrien Dufrene committed
2230 2231
        cc_id_flag[CC_id] = 1;
        continue;
2232
      } else {
Louis Adrien Dufrene's avatar
Louis Adrien Dufrene committed
2233 2234 2235 2236 2237 2238 2239 2240
        hi_dci0_pdu->pdu_type                               = NFAPI_HI_DCI0_DCI_PDU_TYPE;
        hi_dci0_pdu->dci_pdu.dci_pdu_rel8.rnti              = rnti;
        hi_dci0_pdu->dci_pdu.dci_pdu_rel8.aggregation_level = aggregation;
        HI_DCI0_req->number_of_dci++;
        ulsch_ue_select[CC_id].list[ulsch_ue_select[CC_id].ue_num].ue_priority = SCH_UL_INACTIVE;
        ulsch_ue_select[CC_id].list[ulsch_ue_select[CC_id].ue_num].ul_total_buffer = 0;
        ulsch_ue_select[CC_id].list[ulsch_ue_select[CC_id].ue_num].UE_id = ul_inactivity_id[CC_id][temp];
        ulsch_ue_select[CC_id].ue_num++;
2241 2242
      }
    }
Louis Adrien Dufrene's avatar
Louis Adrien Dufrene committed
2243

2244 2245
    HI_DCI0_req->number_of_dci = saved_ulsch_dci[CC_id];
  }
Louis Adrien Dufrene's avatar
Louis Adrien Dufrene committed
2246

2247 2248 2249
  return;
}

Louis Adrien Dufrene's avatar
Louis Adrien Dufrene committed
2250
uint8_t find_rb_table_index(uint8_t average_rbs) {
2251
  int i;
Louis Adrien Dufrene's avatar
Louis Adrien Dufrene committed
2252

2253 2254 2255 2256 2257
  for ( i = 0; i < 34; i++ ) {
    if ( rb_table[i] > average_rbs ) {
      return (i-1);
    }
  }
Louis Adrien Dufrene's avatar
Louis Adrien Dufrene committed
2258

2259 2260 2261 2262
  return i;
}

void ulsch_scheduler_pre_processor_fairRR(module_id_t module_idP,
Louis Adrien Dufrene's avatar
Louis Adrien Dufrene committed
2263 2264 2265 2266
    frame_t frameP,
    sub_frame_t subframeP,
    sub_frame_t sched_subframeP,
    ULSCH_UE_SELECT ulsch_ue_select[MAX_NUM_CCs]) {
2267 2268 2269 2270 2271 2272 2273 2274 2275 2276 2277 2278 2279 2280 2281 2282 2283 2284 2285 2286 2287 2288 2289 2290
  int                CC_id,ulsch_ue_num;
  eNB_MAC_INST       *eNB = RC.mac[module_idP];
  UE_list_t          *UE_list= &eNB->UE_list;
  UE_TEMPLATE        *UE_template = NULL;
  LTE_DL_FRAME_PARMS *frame_parms = NULL;
  uint8_t            ue_num_temp;
  uint8_t            total_rbs=0;
  uint8_t            average_rbs;
  uint16_t           first_rb[MAX_NUM_CCs];
  uint8_t            mcs;
  uint8_t            rb_table_index;
  uint8_t            num_pucch_rb;
  uint32_t           tbs;
  int16_t            tx_power;
  int                UE_id;
  COMMON_channels_t *cc;
  LOG_D(MAC,"In ulsch_preprocessor: ulsch ue select\n");
  //ue select
  ulsch_scheduler_pre_ue_select_fairRR(module_idP,frameP,subframeP,sched_subframeP,ulsch_ue_select);

  // MCS and RB assgin
  for ( CC_id = 0; CC_id < MAX_NUM_CCs; CC_id++ ) {
    cc = &RC.mac[module_idP]->common_channels[CC_id];
    frame_parms = &(RC.eNB[module_idP][CC_id]->frame_parms);
Louis Adrien Dufrene's avatar
Louis Adrien Dufrene committed
2291

2292 2293
    if (cc->tdd_Config) { //TDD
      if (frame_parms->N_RB_UL == 25) {
Louis Adrien Dufrene's avatar
Louis Adrien Dufrene committed
2294
        num_pucch_rb = 1;
2295
      } else if (frame_parms->N_RB_UL == 50) {
Louis Adrien Dufrene's avatar
Louis Adrien Dufrene committed
2296
        num_pucch_rb = 2;
2297
      } else {
Louis Adrien Dufrene's avatar
Louis Adrien Dufrene committed
2298
        num_pucch_rb = 3;
2299 2300 2301
      }
    } else {//FDD
      if (frame_parms->N_RB_UL == 25) {
Louis Adrien Dufrene's avatar
Louis Adrien Dufrene committed
2302
        num_pucch_rb = 1;
2303
      } else {
Louis Adrien Dufrene's avatar
Louis Adrien Dufrene committed
2304
        num_pucch_rb = 2;
2305 2306 2307 2308 2309 2310
      }
    }

    first_rb[CC_id] = num_pucch_rb;
    ue_num_temp       = ulsch_ue_select[CC_id].ue_num;

Louis Adrien Dufrene's avatar
Louis Adrien Dufrene committed
2311
    for ( ulsch_ue_num = 0; ulsch_ue_num < ulsch_ue_select[CC_id].ue_num; ulsch_ue_num++ ) {
2312 2313 2314 2315 2316 2317 2318 2319 2320 2321 2322 2323 2324 2325 2326
      UE_id = ulsch_ue_select[CC_id].list[ulsch_ue_num].UE_id;

      if (ulsch_ue_select[CC_id].list[ulsch_ue_num].ue_priority == SCH_UL_MSG3) {
        first_rb[CC_id] ++;
        ue_num_temp--;
        continue;
      }

      if (ulsch_ue_select[CC_id].list[ulsch_ue_num].ue_priority == SCH_UL_PRACH) {
        first_rb[CC_id] = ulsch_ue_select[CC_id].list[ulsch_ue_num].start_rb+ulsch_ue_select[CC_id].list[ulsch_ue_num].nb_rb;
        ue_num_temp--;
        continue;
      }

      if (first_rb[CC_id] >= frame_parms->N_RB_UL-num_pucch_rb ) {
Louis Adrien Dufrene's avatar
Louis Adrien Dufrene committed
2327 2328 2329
        LOG_W(MAC,"[eNB %d] frame %d subframe %d, UE %d/%x CC %d: dropping, not enough RBs\n",
              module_idP,frameP,subframeP,UE_id,UE_RNTI(CC_id,UE_id),CC_id);
        break;
2330 2331
      }

Louis Adrien Dufrene's avatar
Louis Adrien Dufrene committed
2332
      total_rbs = frame_parms->N_RB_UL-num_pucch_rb-first_rb[CC_id];
2333
      average_rbs = (int)round((double)total_rbs/(double)ue_num_temp);
Louis Adrien Dufrene's avatar
Louis Adrien Dufrene committed
2334

2335 2336 2337 2338 2339 2340
      if ( average_rbs < 3 ) {
        ue_num_temp--;
        ulsch_ue_num--;
        ulsch_ue_select[CC_id].ue_num--;
        continue;
      }
Louis Adrien Dufrene's avatar
Louis Adrien Dufrene committed
2341

2342 2343
      if ( ulsch_ue_select[CC_id].list[ulsch_ue_num].ue_priority == SCH_UL_RETRANS ) {
        if ( ulsch_ue_select[CC_id].list[ulsch_ue_num].nb_rb <= average_rbs ) {
Louis Adrien Dufrene's avatar
Louis Adrien Dufrene committed
2344 2345 2346
          // assigne RBS(nb_rb)
          ulsch_ue_select[CC_id].list[ulsch_ue_num].start_rb = first_rb[CC_id];
          first_rb[CC_id] = first_rb[CC_id] + ulsch_ue_select[CC_id].list[ulsch_ue_num].nb_rb;
2347
        }
Louis Adrien Dufrene's avatar
Louis Adrien Dufrene committed
2348

2349 2350
        if ( ulsch_ue_select[CC_id].list[ulsch_ue_num].nb_rb > average_rbs ) {
          if ( ulsch_ue_select[CC_id].list[ulsch_ue_num].nb_rb <= total_rbs ) {
Louis Adrien Dufrene's avatar
Louis Adrien Dufrene committed
2351 2352 2353
            // assigne RBS(average_rbs)
            ulsch_ue_select[CC_id].list[ulsch_ue_num].start_rb = first_rb[CC_id];
            first_rb[CC_id] = first_rb[CC_id] + ulsch_ue_select[CC_id].list[ulsch_ue_num].nb_rb;
2354
          } else {
Louis Adrien Dufrene's avatar
Louis Adrien Dufrene committed
2355 2356 2357 2358 2359 2360 2361 2362 2363 2364
            // assigne RBS(remain rbs)
            ulsch_ue_select[CC_id].list[ulsch_ue_num].start_rb = first_rb[CC_id];
            rb_table_index = 2;

            while(rb_table[rb_table_index] <= total_rbs) {
              rb_table_index++;
            }

            ulsch_ue_select[CC_id].list[ulsch_ue_num].nb_rb = rb_table[rb_table_index-1];
            first_rb[CC_id] = first_rb[CC_id] + rb_table[rb_table_index-1];
2365 2366
          }
        }
Louis Adrien Dufrene's avatar
Louis Adrien Dufrene committed
2367
      } else {
2368
        UE_template = &UE_list->UE_template[CC_id][UE_id];
Louis Adrien Dufrene's avatar
Louis Adrien Dufrene committed
2369

2370 2371 2372 2373 2374
        if ( UE_list->UE_sched_ctrl[UE_id].phr_received == 1 ) {
          mcs = 20;
        } else {
          mcs = 10;
        }
Louis Adrien Dufrene's avatar
Louis Adrien Dufrene committed
2375

2376
        if ( ulsch_ue_select[CC_id].list[ulsch_ue_num].ue_priority  == SCH_UL_FIRST ) {
2377
          int bytes_to_schedule = UE_template->estimated_ul_buffer - UE_template->scheduled_ul_bytes;
Louis Adrien Dufrene's avatar
Louis Adrien Dufrene committed
2378

2379 2380
          if (bytes_to_schedule < 0) bytes_to_schedule = 0;

2381 2382 2383 2384 2385
          if ( ulsch_ue_select[CC_id].list[ulsch_ue_num].ul_total_buffer > 0 ) {
            rb_table_index = 2;
            tbs = get_TBS_UL(mcs,rb_table[rb_table_index]);
            tx_power= estimate_ue_tx_power(tbs*8,rb_table[rb_table_index],0,frame_parms->Ncp,0);

2386
            while ( (((UE_template->phr_info - tx_power) < 0 ) || (tbs > bytes_to_schedule)) && (mcs > 3) ) {
2387 2388 2389 2390 2391
              mcs--;
              tbs = get_TBS_UL(mcs,rb_table[rb_table_index]);
              tx_power= estimate_ue_tx_power(tbs*8,rb_table[rb_table_index],0,frame_parms->Ncp,0);
            }

2392
            while ( (tbs < bytes_to_schedule) && (rb_table[rb_table_index]<(frame_parms->N_RB_UL-num_pucch_rb-first_rb[CC_id])) &&
Louis Adrien Dufrene's avatar
Louis Adrien Dufrene committed
2393
                    ((UE_template->phr_info - tx_power) > 0) && (rb_table_index < 32 )) {
2394 2395 2396 2397 2398 2399 2400 2401
              rb_table_index++;
              tbs = get_TBS_UL(mcs,rb_table[rb_table_index])<<3;
              tx_power= estimate_ue_tx_power(tbs,rb_table[rb_table_index],0,frame_parms->Ncp,0);
            }

            if ( rb_table[rb_table_index]<3 ) {
              rb_table_index=2;
            }
Louis Adrien Dufrene's avatar
Louis Adrien Dufrene committed
2402

2403 2404 2405
            if ( rb_table[rb_table_index] <= average_rbs ) {
              // assigne RBS( nb_rb)
              first_rb[CC_id] = first_rb[CC_id] + rb_table[rb_table_index];
2406
              UE_list->UE_template[CC_id][UE_id].pre_allocated_nb_rb_ul[0] = rb_table[rb_table_index];
2407 2408 2409
              UE_list->UE_template[CC_id][UE_id].pre_allocated_rb_table_index_ul = rb_table_index;
              UE_list->UE_template[CC_id][UE_id].pre_assigned_mcs_ul = mcs;
            }
Louis Adrien Dufrene's avatar
Louis Adrien Dufrene committed
2410

2411 2412 2413
            if ( rb_table[rb_table_index] > average_rbs ) {
              // assigne RBS(average_rbs)
              rb_table_index = find_rb_table_index(average_rbs);
Louis Adrien Dufrene's avatar
Louis Adrien Dufrene committed
2414 2415 2416 2417 2418

              if (rb_table_index>=34) {
                LOG_W(MAC,"[eNB %d] frame %d subframe %d, UE %d/%x CC %d: average RBs %d > 100\n",
                      module_idP,frameP,subframeP,UE_id,UE_RNTI(CC_id,UE_id),CC_id,average_rbs);
                break;
2419
              }
Louis Adrien Dufrene's avatar
Louis Adrien Dufrene committed
2420

2421
              first_rb[CC_id] = first_rb[CC_id] + rb_table[rb_table_index];
2422
              UE_list->UE_template[CC_id][UE_id].pre_allocated_nb_rb_ul[0] = rb_table[rb_table_index];
2423 2424 2425
              UE_list->UE_template[CC_id][UE_id].pre_allocated_rb_table_index_ul = rb_table_index;
              UE_list->UE_template[CC_id][UE_id].pre_assigned_mcs_ul = mcs;
            }
Louis Adrien Dufrene's avatar
Louis Adrien Dufrene committed
2426
          } else {
2427 2428
            // assigne RBS( 3 RBs)
            first_rb[CC_id] = first_rb[CC_id] + 3;
2429
            UE_list->UE_template[CC_id][UE_id].pre_allocated_nb_rb_ul[0] = 3;
2430 2431 2432
            UE_list->UE_template[CC_id][UE_id].pre_allocated_rb_table_index_ul = 2;
            UE_list->UE_template[CC_id][UE_id].pre_assigned_mcs_ul = 10;
          }
Louis Adrien Dufrene's avatar
Louis Adrien Dufrene committed
2433
        } else if ( ulsch_ue_select[CC_id].list[ulsch_ue_num].ue_priority  == SCH_UL_INACTIVE ) {
2434 2435
          // assigne RBS( 3 RBs)
          first_rb[CC_id] = first_rb[CC_id] + 3;
2436
          UE_list->UE_template[CC_id][UE_id].pre_allocated_nb_rb_ul[0] = 3;
2437 2438 2439 2440
          UE_list->UE_template[CC_id][UE_id].pre_allocated_rb_table_index_ul = 2;
          UE_list->UE_template[CC_id][UE_id].pre_assigned_mcs_ul = 10;
        }
      }
Louis Adrien Dufrene's avatar
Louis Adrien Dufrene committed
2441

2442 2443 2444 2445 2446 2447 2448 2449
      ue_num_temp--;
    }
  }
}


void
schedule_ulsch_fairRR(module_id_t module_idP, frame_t frameP,
Louis Adrien Dufrene's avatar
Louis Adrien Dufrene committed
2450
                      sub_frame_t subframeP) {
2451 2452 2453 2454 2455 2456 2457 2458 2459
  uint16_t i;
  int CC_id;
  eNB_MAC_INST *mac = RC.mac[module_idP];
  COMMON_channels_t *cc;
  int sched_frame=frameP;
  start_meas(&mac->schedule_ulsch);
  int sched_subframe = (subframeP+4)%10;
  cc = &mac->common_channels[0];
  int tdd_sfa;
Louis Adrien Dufrene's avatar
Louis Adrien Dufrene committed
2460

2461 2462 2463
  // for TDD: check subframes where we have to act and return if nothing should be done now
  if (cc->tdd_Config) {
    tdd_sfa = cc->tdd_Config->subframeAssignment;
Louis Adrien Dufrene's avatar
Louis Adrien Dufrene committed
2464

2465
    switch (subframeP) {
Louis Adrien Dufrene's avatar
Louis Adrien Dufrene committed
2466 2467 2468 2469 2470 2471 2472 2473 2474 2475 2476 2477 2478 2479 2480 2481 2482 2483 2484 2485 2486 2487 2488 2489 2490 2491 2492 2493 2494 2495 2496 2497 2498 2499 2500 2501 2502 2503 2504 2505 2506 2507 2508 2509 2510 2511 2512 2513 2514 2515 2516 2517 2518 2519 2520 2521 2522 2523 2524 2525
      case 0:
        if ((tdd_sfa == 0)||
            (tdd_sfa == 3)) sched_subframe = 4;
        else if (tdd_sfa==6) sched_subframe = 7;
        else return;

        break;

      case 1:
        if ((tdd_sfa==0)||
            (tdd_sfa==1)) sched_subframe = 7;
        else if (tdd_sfa==6) sched_subframe = 8;
        else return;

        break;

      case 2: // Don't schedule UL in subframe 2 for TDD
        return;

      case 3:
        if (tdd_sfa==2) sched_subframe = 7;
        else return;

        break;

      case 4:
        if (tdd_sfa==1) sched_subframe = 8;
        else return;

        break;

      case 5:
        if (tdd_sfa==0)      sched_subframe = 9;
        else if (tdd_sfa==6) sched_subframe = 2;
        else return;

        break;

      case 6:
        if (tdd_sfa==0 || tdd_sfa==1)      sched_subframe = 2;
        else if (tdd_sfa==6) sched_subframe = 3;
        else return;

        break;

      case 7:
        return;

      case 8:
        if ((tdd_sfa>=2) && (tdd_sfa<=5)) sched_subframe=2;
        else return;

        break;

      case 9:
        if ((tdd_sfa==1) || (tdd_sfa==3) || (tdd_sfa==4)) sched_subframe=3;
        else if (tdd_sfa==6) sched_subframe=4;
        else return;

        break;
2526 2527
    }
  }
Louis Adrien Dufrene's avatar
Louis Adrien Dufrene committed
2528

2529
  if (sched_subframe < subframeP) sched_frame++;
Louis Adrien Dufrene's avatar
Louis Adrien Dufrene committed
2530

2531 2532 2533 2534 2535 2536 2537
  ULSCH_UE_SELECT ulsch_ue_select[MAX_NUM_CCs];
  memset(ulsch_ue_select, 0, sizeof(ulsch_ue_select));
  LTE_DL_FRAME_PARMS *frame_parms ;

  for (CC_id=0; CC_id<MAX_NUM_CCs; CC_id++) {
    cc = &mac->common_channels[CC_id];
    frame_parms= &RC.eNB[module_idP][CC_id]->frame_parms;
Louis Adrien Dufrene's avatar
Louis Adrien Dufrene committed
2538

2539 2540 2541 2542 2543
    // 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?)
    for (i=0; i<NB_RA_PROC_MAX; i++) {
Louis Adrien Dufrene's avatar
Louis Adrien Dufrene committed
2544
      if ((cc->ra[i].state == WAITMSG3) &&(cc->ra[i].Msg3_subframe == sched_subframe)) {
2545
        ulsch_ue_select[CC_id].list[ulsch_ue_select[CC_id].ue_num].ue_priority = SCH_UL_MSG3;
Louis Adrien Dufrene's avatar
Louis Adrien Dufrene committed
2546

2547
        if (cc->tdd_Config == NULL) {
Louis Adrien Dufrene's avatar
Louis Adrien Dufrene committed
2548 2549 2550 2551 2552
          if(frame_parms->N_RB_UL == 25) {
            ulsch_ue_select[CC_id].list[ulsch_ue_select[CC_id].ue_num].start_rb = 1;
          } else {
            ulsch_ue_select[CC_id].list[ulsch_ue_select[CC_id].ue_num].start_rb = 2;
          }
2553
        } else {
Louis Adrien Dufrene's avatar
Louis Adrien Dufrene committed
2554
          switch(frame_parms->N_RB_UL) {
2555 2556 2557 2558
            case 25:
            default:
              ulsch_ue_select[CC_id].list[ulsch_ue_select[CC_id].ue_num].start_rb = 1;
              break;
Louis Adrien Dufrene's avatar
Louis Adrien Dufrene committed
2559

2560 2561 2562
            case 50:
              ulsch_ue_select[CC_id].list[ulsch_ue_select[CC_id].ue_num].start_rb = 2;
              break;
Louis Adrien Dufrene's avatar
Louis Adrien Dufrene committed
2563

2564 2565 2566
            case 100:
              ulsch_ue_select[CC_id].list[ulsch_ue_select[CC_id].ue_num].start_rb = 3;
              break;
Louis Adrien Dufrene's avatar
Louis Adrien Dufrene committed
2567
          }
2568
        }
Louis Adrien Dufrene's avatar
Louis Adrien Dufrene committed
2569

2570 2571 2572 2573 2574 2575 2576 2577 2578 2579 2580
        ulsch_ue_select[CC_id].list[ulsch_ue_select[CC_id].ue_num].nb_rb = 1;
        ulsch_ue_select[CC_id].list[ulsch_ue_select[CC_id].ue_num].UE_id = -1;
        ulsch_ue_select[CC_id].ue_num++;
        break;
      }
    }

    //PRACH
    if (is_prach_subframe(frame_parms,sched_frame,sched_subframe)==1) {
      ulsch_ue_select[CC_id].list[ulsch_ue_select[CC_id].ue_num].ue_priority = SCH_UL_PRACH;
      ulsch_ue_select[CC_id].list[ulsch_ue_select[CC_id].ue_num].start_rb = get_prach_prb_offset(
Louis Adrien Dufrene's avatar
Louis Adrien Dufrene committed
2581 2582 2583 2584 2585
            frame_parms,
            frame_parms->prach_config_common.prach_ConfigInfo.prach_ConfigIndex,
            frame_parms->prach_config_common.prach_ConfigInfo.prach_FreqOffset,
            0,//tdd_mapindex
            frameP); //Nf
2586 2587 2588 2589 2590 2591 2592 2593 2594 2595 2596
      ulsch_ue_select[CC_id].list[ulsch_ue_select[CC_id].ue_num].nb_rb = 6;
      ulsch_ue_select[CC_id].list[ulsch_ue_select[CC_id].ue_num].UE_id = -1;
      ulsch_ue_select[CC_id].ue_num++;
    }
  }

  schedule_ulsch_rnti_fairRR(module_idP, frameP, subframeP, sched_subframe,ulsch_ue_select);
  stop_meas(&mac->schedule_ulsch);
}

void schedule_ulsch_rnti_fairRR(module_id_t   module_idP,
Louis Adrien Dufrene's avatar
Louis Adrien Dufrene committed
2597 2598 2599 2600
                                frame_t       frameP,
                                sub_frame_t   subframeP,
                                unsigned char sched_subframeP,
                                ULSCH_UE_SELECT  ulsch_ue_select[MAX_NUM_CCs]) {
2601 2602 2603 2604 2605 2606 2607 2608
  int16_t           UE_id;
  uint8_t           aggregation    = 2;
  uint16_t          first_rb[MAX_NUM_CCs];
  uint8_t           ULSCH_first_end;
  rnti_t            rnti           = -1;
  uint8_t           round          = 0;
  uint8_t           harq_pid       = 0;
  uint8_t           status         = 0;
Louis Adrien Dufrene's avatar
Louis Adrien Dufrene committed
2609
  uint8_t           rb_table_index = -1;
2610 2611 2612 2613 2614 2615 2616 2617 2618 2619 2620 2621 2622 2623 2624
  uint32_t          cqi_req,cshift,ndi,tpc;
  int32_t           normalized_rx_power;
  int32_t           target_rx_power=-90;
  static int32_t    tpc_accumulated=0;
  int               CC_id,ulsch_ue_num;
  int               N_RB_UL;
  eNB_MAC_INST      *eNB = RC.mac[module_idP];
  COMMON_channels_t *cc;
  UE_list_t         *UE_list=&eNB->UE_list;
  UE_TEMPLATE       *UE_template;
  UE_sched_ctrl     *UE_sched_ctrl;
  int               sched_frame=frameP;
  int               rvidx_tab[4] = {0,2,3,1};
  uint16_t          ul_req_index;
  uint8_t           dlsch_flag;
Louis Adrien Dufrene's avatar
Louis Adrien Dufrene committed
2625

2626 2627 2628 2629 2630 2631 2632 2633
  if (sched_subframeP < subframeP) sched_frame++;

  nfapi_hi_dci0_request_body_t   *hi_dci0_req;
  nfapi_hi_dci0_request_pdu_t    *hi_dci0_pdu;
  nfapi_ul_config_request_body_t *ul_req_tmp;
  nfapi_ul_config_ulsch_harq_information *ulsch_harq_information;
  LOG_D(MAC,"entering ulsch preprocesor\n");
  ulsch_scheduler_pre_processor_fairRR(module_idP,
Louis Adrien Dufrene's avatar
Louis Adrien Dufrene committed
2634 2635 2636 2637
                                       frameP,
                                       subframeP,
                                       sched_subframeP,
                                       ulsch_ue_select);
2638 2639 2640 2641
  LOG_D(MAC,"exiting ulsch preprocesor\n");

  // loop over all active UEs
  for (CC_id=0; CC_id<MAX_NUM_CCs; CC_id++) {
Louis Adrien Dufrene's avatar
Louis Adrien Dufrene committed
2642 2643 2644 2645
    hi_dci0_req = &eNB->HI_DCI0_req[CC_id][subframeP].hi_dci0_request_body;
    eNB->HI_DCI0_req[CC_id][subframeP].sfn_sf = (frameP<<4)+subframeP;
    ul_req_tmp = &eNB->UL_req_tmp[CC_id][sched_subframeP].ul_config_request_body;
    nfapi_ul_config_request_t *ul_req  = &eNB->UL_req_tmp[CC_id][sched_subframeP];
2646 2647 2648 2649
    ULSCH_first_end = 0;
    cc  = &eNB->common_channels[CC_id];
    // This is the actual CC_id in the list
    N_RB_UL      = to_prb(cc->mib->message.dl_Bandwidth);
Louis Adrien Dufrene's avatar
Louis Adrien Dufrene committed
2650

2651 2652
    //leave out first RB for PUCCH
    if (cc->tdd_Config == NULL) {
Louis Adrien Dufrene's avatar
Louis Adrien Dufrene committed
2653 2654 2655 2656 2657 2658 2659
      if(N_RB_UL == 25) {
        first_rb[CC_id] = 1;
      } else {
        first_rb[CC_id] = 2;
      }
    } else {
      switch(N_RB_UL) {
2660 2661
        case 25:
        default:
Louis Adrien Dufrene's avatar
Louis Adrien Dufrene committed
2662
          first_rb[CC_id] = 1;
2663
          break;
Louis Adrien Dufrene's avatar
Louis Adrien Dufrene committed
2664

2665
        case 50:
Louis Adrien Dufrene's avatar
Louis Adrien Dufrene committed
2666
          first_rb[CC_id] = 2;
2667
          break;
Louis Adrien Dufrene's avatar
Louis Adrien Dufrene committed
2668

2669
        case 100:
Louis Adrien Dufrene's avatar
Louis Adrien Dufrene committed
2670
          first_rb[CC_id] = 3;
2671
          break;
Louis Adrien Dufrene's avatar
Louis Adrien Dufrene committed
2672
      }
2673
    }
Louis Adrien Dufrene's avatar
Louis Adrien Dufrene committed
2674

2675 2676
    for ( ulsch_ue_num = 0; ulsch_ue_num < ulsch_ue_select[CC_id].ue_num; ulsch_ue_num++ ) {
      UE_id = ulsch_ue_select[CC_id].list[ulsch_ue_num].UE_id;
Louis Adrien Dufrene's avatar
Louis Adrien Dufrene committed
2677

2678
      /* be sure that there are some free RBs */
Louis Adrien Dufrene's avatar
Louis Adrien Dufrene committed
2679 2680 2681 2682 2683 2684 2685 2686 2687 2688 2689 2690
      if (cc->tdd_Config == NULL) {
        if(N_RB_UL == 25) {
          if (first_rb[CC_id] >= N_RB_UL-1) {
            LOG_W(MAC,"[eNB %d] frame %d subframe %d, UE %d/%x CC %d: dropping, not enough RBs\n",
                  module_idP,frameP,subframeP,UE_id,rnti,CC_id);
            break;
          }
        } else {
          if (first_rb[CC_id] >= N_RB_UL-2) {
            LOG_W(MAC,"[eNB %d] frame %d subframe %d, UE %d/%x CC %d: dropping, not enough RBs\n",
                  module_idP,frameP,subframeP,UE_id,rnti,CC_id);
            break;
2691
          }
Louis Adrien Dufrene's avatar
Louis Adrien Dufrene committed
2692
        }
2693
      } else {
Louis Adrien Dufrene's avatar
Louis Adrien Dufrene committed
2694 2695 2696 2697 2698
        if(N_RB_UL == 25) {
          if (first_rb[CC_id] >= N_RB_UL-1) {
            LOG_W(MAC,"[eNB %d] frame %d subframe %d, UE %d/%x CC %d N_RB_UL %d first_rb %d: dropping, not enough RBs\n",
                  module_idP,frameP,subframeP,UE_id,rnti,CC_id, N_RB_UL, first_rb[CC_id]);
            break;
2699
          }
Louis Adrien Dufrene's avatar
Louis Adrien Dufrene committed
2700 2701 2702 2703 2704 2705 2706 2707 2708 2709 2710 2711 2712
        } else if(N_RB_UL == 50) {
          if (first_rb[CC_id] >= N_RB_UL-2) {
            LOG_W(MAC,"[eNB %d] frame %d subframe %d, UE %d/%x CC %d N_RB_UL %d first_rb %d: dropping, not enough RBs\n",
                  module_idP,frameP,subframeP,UE_id,rnti,CC_id, N_RB_UL, first_rb[CC_id]);
            break;
          }
        } else if(N_RB_UL == 100) {
          if (first_rb[CC_id] >= N_RB_UL-3) {
            LOG_W(MAC,"[eNB %d] frame %d subframe %d, UE %d/%x CC %d N_RB_UL %d first_rb %d: dropping, not enough RBs\n",
                  module_idP,frameP,subframeP,UE_id,rnti,CC_id, N_RB_UL, first_rb[CC_id]);
            break;
          }
        }
2713
      }
Louis Adrien Dufrene's avatar
Louis Adrien Dufrene committed
2714

2715 2716 2717 2718 2719
      //MSG3
      if (ulsch_ue_select[CC_id].list[ulsch_ue_num].ue_priority == SCH_UL_MSG3) {
        first_rb[CC_id] ++;
        continue;
      }
Louis Adrien Dufrene's avatar
Louis Adrien Dufrene committed
2720

2721 2722 2723 2724 2725 2726 2727 2728 2729 2730 2731 2732
      //PRACH
      if (ulsch_ue_select[CC_id].list[ulsch_ue_num].ue_priority == SCH_UL_PRACH) {
        first_rb[CC_id] = ulsch_ue_select[CC_id].list[ulsch_ue_num].start_rb+ulsch_ue_select[CC_id].list[ulsch_ue_num].nb_rb;
        continue;
      }

      UE_template   = &UE_list->UE_template[CC_id][UE_id];
      UE_sched_ctrl = &UE_list->UE_sched_ctrl[UE_id];
      harq_pid      = subframe2harqpid(cc,sched_frame,sched_subframeP);
      rnti = UE_RNTI(CC_id,UE_id);
      LOG_D(MAC,"[eNB %d] frame %d subframe %d,Checking PUSCH %d for UE %d/%x CC %d : aggregation level %d, N_RB_UL %d\n",
            module_idP,frameP,subframeP,harq_pid,UE_id,rnti,CC_id, aggregation,N_RB_UL);
2733
      int bytes_to_schedule = UE_template->estimated_ul_buffer - UE_template->scheduled_ul_bytes;
Louis Adrien Dufrene's avatar
Louis Adrien Dufrene committed
2734

2735 2736 2737
      if (bytes_to_schedule < 0) bytes_to_schedule = 0;

      RC.eNB[module_idP][CC_id]->pusch_stats_BO[UE_id][(frameP*10)+subframeP] = bytes_to_schedule;
2738 2739
      VCD_SIGNAL_DUMPER_DUMP_VARIABLE_BY_NAME(VCD_SIGNAL_DUMPER_VARIABLES_UE0_BO,RC.eNB[module_idP][CC_id]->pusch_stats_BO[UE_id][(frameP*10)+subframeP]);
      status = mac_eNB_get_rrc_status(module_idP,rnti);
Louis Adrien Dufrene's avatar
Louis Adrien Dufrene committed
2740

2741 2742 2743
      if (status < RRC_CONNECTED)
        cqi_req = 0;
      else if (UE_sched_ctrl->cqi_req_timer>30) {
Louis Adrien Dufrene's avatar
Louis Adrien Dufrene committed
2744 2745 2746 2747 2748 2749 2750 2751 2752 2753 2754 2755 2756 2757 2758 2759 2760 2761 2762 2763 2764 2765 2766 2767 2768 2769
        cqi_req = 1;

        // To be safe , do not ask CQI in special SFs:36.213/7.2.3 CQI definition
        if (cc->tdd_Config) {
          switch (cc->tdd_Config->subframeAssignment) {
            case 1:
              if( subframeP == 1 || subframeP == 6 ) cqi_req=0;

              break;

            case 3:
              if( subframeP == 1 ) cqi_req=0;

              break;

            default:
              LOG_E(MAC," TDD config not supported\n");
              break;
          }
        }

        if(cqi_req == 1) {
          UE_sched_ctrl->cqi_req_timer=0;
          UE_sched_ctrl->cqi_req_flag |= 1 << sched_subframeP;
        }
      } else
2770 2771 2772 2773 2774
        cqi_req = 0;

      //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
2775 2776
      normalized_rx_power = (5*UE_sched_ctrl->pusch_snr[CC_id]-640)/10+30; //(+eNB->measurements.n0_power_dB[0])
      target_rx_power= eNB->puSch10xSnr/10 + 30; //(+eNB->measurements.n0_power_dB[0])
2777 2778 2779
      // this assumes accumulated tpc
      // make sure that we are only sending a tpc update once a frame, otherwise the control loop will freak out
      int32_t framex10psubframe = UE_template->pusch_tpc_tx_frame*10+UE_template->pusch_tpc_tx_subframe;
Louis Adrien Dufrene's avatar
Louis Adrien Dufrene committed
2780

2781
      if (((framex10psubframe+10)<=(frameP*10+subframeP)) || //normal case
Louis Adrien Dufrene's avatar
Louis Adrien Dufrene committed
2782 2783 2784 2785 2786 2787 2788 2789 2790 2791
          ((framex10psubframe>(frameP*10+subframeP)) && (((10240-framex10psubframe+frameP*10+subframeP)>=10)))) { //frame wrap-around
        UE_template->pusch_tpc_tx_frame=frameP;
        UE_template->pusch_tpc_tx_subframe=subframeP;

        if (normalized_rx_power>(target_rx_power+4)) {
          tpc = 0; //-1
          tpc_accumulated--;
        } else if (normalized_rx_power<(target_rx_power-4)) {
          tpc = 2; //+1
          tpc_accumulated++;
2792 2793 2794
        } else {
          tpc = 1; //0
        }
Louis Adrien Dufrene's avatar
Louis Adrien Dufrene committed
2795 2796 2797 2798 2799 2800
      } else {
        tpc = 1; //0
      }

      if (tpc!=1) {
        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",
2801 2802
              module_idP,frameP,subframeP,harq_pid,tpc,
              tpc_accumulated,normalized_rx_power,target_rx_power);
Louis Adrien Dufrene's avatar
Louis Adrien Dufrene committed
2803 2804 2805 2806 2807 2808 2809 2810 2811 2812 2813 2814 2815 2816 2817 2818 2819 2820 2821 2822 2823 2824
      }

      // new transmission
      if ((ulsch_ue_select[CC_id].list[ulsch_ue_num].ue_priority == SCH_UL_FIRST) ||
          (ulsch_ue_select[CC_id].list[ulsch_ue_num].ue_priority == SCH_UL_INACTIVE)) {
        LOG_D(MAC,"[eNB %d][PUSCH %d] Frame %d subframe %d Scheduling UE %d/%x (SR %d,UL_inactivity timer %d,UL_failure timer %d,cqi_req_timer %d)\n",
              module_idP,harq_pid,frameP,subframeP,UE_id,rnti,UE_template->ul_SR,
              UE_sched_ctrl->ul_inactivity_timer,
              UE_sched_ctrl->ul_failure_timer,
              UE_sched_ctrl->cqi_req_timer);
        ndi = 1-UE_template->oldNDI_UL[harq_pid];
        UE_template->oldNDI_UL[harq_pid]=ndi;
        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;
        UE_template->mcs_UL[harq_pid] = UE_template->pre_assigned_mcs_ul;//cmin (UE_template->pre_assigned_mcs_ul, openair_daq_vars.target_ue_ul_mcs); // adjust, based on user-defined MCS

        if (UE_template->pre_allocated_rb_table_index_ul >=0) {
          rb_table_index=UE_template->pre_allocated_rb_table_index_ul;
        } else {
          UE_template->mcs_UL[harq_pid]=10;//cmin (10, openair_daq_vars.target_ue_ul_mcs);
          rb_table_index=5; // for PHR
2825
        }
Louis Adrien Dufrene's avatar
Louis Adrien Dufrene committed
2826 2827 2828 2829 2830 2831 2832 2833 2834 2835 2836 2837 2838 2839 2840 2841 2842 2843 2844 2845 2846 2847 2848 2849 2850 2851 2852 2853 2854 2855 2856 2857 2858 2859 2860 2861 2862 2863 2864 2865 2866 2867 2868 2869 2870 2871 2872 2873 2874 2875 2876 2877 2878 2879 2880 2881 2882 2883 2884 2885 2886 2887 2888 2889 2890 2891 2892 2893 2894 2895 2896 2897 2898 2899 2900 2901 2902 2903 2904 2905 2906 2907 2908 2909 2910 2911 2912 2913 2914 2915 2916 2917 2918 2919 2920 2921

        UE_list->eNB_UE_stats[CC_id][UE_id].ulsch_mcs2=UE_template->mcs_UL[harq_pid];
        UE_template->TBS_UL[harq_pid] = get_TBS_UL(UE_template->mcs_UL[harq_pid],rb_table[rb_table_index]);
        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=UE_template->TBS_UL[harq_pid];
        T(T_ENB_MAC_UE_UL_SCHEDULE, T_INT(module_idP), T_INT(CC_id), T_INT(rnti), T_INT(frameP),
          T_INT(subframeP), T_INT(harq_pid), T_INT(UE_template->mcs_UL[harq_pid]), T_INT(first_rb[CC_id]), T_INT(rb_table[rb_table_index]),
          T_INT(UE_template->TBS_UL[harq_pid]), T_INT(ndi));

        if (mac_eNB_get_rrc_status(module_idP,rnti) < RRC_CONNECTED)
          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,UE_template->mcs_UL[harq_pid],
                first_rb[CC_id],rb_table[rb_table_index],
                rb_table_index,UE_template->TBS_UL[harq_pid],harq_pid);

        // bad indices : 20 (40 PRB), 21 (45 PRB), 22 (48 PRB)
        //store for possible retransmission
        UE_template->nb_rb_ul[harq_pid]    = rb_table[rb_table_index];
        UE_template->first_rb_ul[harq_pid] = first_rb[CC_id];
        UE_sched_ctrl->ul_scheduled |= (1<<harq_pid);

        if (UE_id == UE_list->head)
          VCD_SIGNAL_DUMPER_DUMP_VARIABLE_BY_NAME(VCD_SIGNAL_DUMPER_VARIABLES_UE0_SCHEDULED,UE_sched_ctrl->ul_scheduled);

        // adjust total UL buffer status by TBS, wait for UL sdus to do final update
        /*LOG_D(MAC,"[eNB %d] CC_id %d UE %d/%x : adjusting ul_total_buffer, old %d, TBS %d\n", module_idP,CC_id,UE_id,rnti,UE_template->ul_total_buffer,UE_template->TBS_UL[harq_pid]);
        if (UE_template->ul_total_buffer > UE_template->TBS_UL[harq_pid])
          UE_template->ul_total_buffer -= UE_template->TBS_UL[harq_pid];
        else
          UE_template->ul_total_buffer = 0;
        LOG_D(MAC,"ul_total_buffer, new %d\n", UE_template->ul_total_buffer);*/
        // Cyclic shift for DM RS
        cshift = 0;// values from 0 to 7 can be used for mapping the cyclic shift (36.211 , Table 5.5.2.1.1-1)
        // save it for a potential retransmission
        UE_template->cshift[harq_pid] = cshift;
        hi_dci0_pdu                                                         = &hi_dci0_req->hi_dci0_pdu_list[hi_dci0_req->number_of_dci+hi_dci0_req->number_of_hi];
        memset((void *)hi_dci0_pdu,0,sizeof(nfapi_hi_dci0_request_pdu_t));
        hi_dci0_pdu->pdu_type                                               = NFAPI_HI_DCI0_DCI_PDU_TYPE;
        hi_dci0_pdu->pdu_size                                               = 2+sizeof(nfapi_hi_dci0_dci_pdu);
        hi_dci0_pdu->dci_pdu.dci_pdu_rel8.dci_format                        = NFAPI_UL_DCI_FORMAT_0;
        hi_dci0_pdu->dci_pdu.dci_pdu_rel8.aggregation_level                 = aggregation;
        hi_dci0_pdu->dci_pdu.dci_pdu_rel8.rnti                              = rnti;
        hi_dci0_pdu->dci_pdu.dci_pdu_rel8.transmission_power                = 6000;
        hi_dci0_pdu->dci_pdu.dci_pdu_rel8.resource_block_start              = first_rb[CC_id];
        hi_dci0_pdu->dci_pdu.dci_pdu_rel8.number_of_resource_block          = rb_table[rb_table_index];
        hi_dci0_pdu->dci_pdu.dci_pdu_rel8.mcs_1                             = UE_template->mcs_UL[harq_pid];
        hi_dci0_pdu->dci_pdu.dci_pdu_rel8.cyclic_shift_2_for_drms           = cshift;
        hi_dci0_pdu->dci_pdu.dci_pdu_rel8.frequency_hopping_enabled_flag    = 0;
        hi_dci0_pdu->dci_pdu.dci_pdu_rel8.new_data_indication_1             = ndi;
        hi_dci0_pdu->dci_pdu.dci_pdu_rel8.tpc                               = tpc;
        hi_dci0_pdu->dci_pdu.dci_pdu_rel8.cqi_csi_request                   = cqi_req;
        hi_dci0_pdu->dci_pdu.dci_pdu_rel8.dl_assignment_index               = UE_template->DAI_ul[sched_subframeP];
        hi_dci0_pdu->dci_pdu.dci_pdu_rel8.harq_pid                          = harq_pid;
        hi_dci0_req->number_of_dci++;
        hi_dci0_req->sfnsf = sfnsf_add_subframe(sched_frame, sched_subframeP, 0); //(frameP, subframeP, 4)
        hi_dci0_req->tl.tag = NFAPI_HI_DCI0_REQUEST_BODY_TAG;
        nfapi_hi_dci0_request_t        *nfapi_hi_dci0_req = &eNB->HI_DCI0_req[CC_id][subframeP];
        nfapi_hi_dci0_req->sfn_sf = frameP<<4|subframeP; // sfnsf_add_subframe(sched_frame, sched_subframeP, 0); // sunday!
        nfapi_hi_dci0_req->header.message_id = NFAPI_HI_DCI0_REQUEST;
        LOG_D(MAC,"[PUSCH %d] Frame %d, Subframe %d: Adding UL CONFIG.Request for UE %d/%x, ulsch_frame %d, ulsch_subframe %d\n",
              harq_pid,frameP,subframeP,UE_id,rnti,sched_frame,sched_subframeP);
        ul_req_index = 0;
        dlsch_flag = 0;

        for(ul_req_index = 0; ul_req_index < ul_req_tmp->number_of_pdus; ul_req_index++) {
          if((ul_req_tmp->ul_config_pdu_list[ul_req_index].pdu_type == NFAPI_UL_CONFIG_UCI_HARQ_PDU_TYPE) &&
              (ul_req_tmp->ul_config_pdu_list[ul_req_index].uci_harq_pdu.ue_information.ue_information_rel8.rnti == rnti)) {
            dlsch_flag = 1;
            LOG_D(MAC,"Frame %d, Subframe %d:rnti %x ul_req_index %d Switched UCI HARQ to ULSCH HARQ(first)\n",frameP,subframeP,rnti,ul_req_index);
            break;
          }
        }

        // Add UL_config PDUs
        fill_nfapi_ulsch_config_request_rel8(&ul_req_tmp->ul_config_pdu_list[ul_req_index],
                                             cqi_req,
                                             cc,
                                             UE_template->physicalConfigDedicated,
                                             get_tmode(module_idP,CC_id,UE_id),
                                             eNB->ul_handle,
                                             rnti,
                                             first_rb[CC_id], // resource_block_start
                                             rb_table[rb_table_index], // number_of_resource_blocks
                                             UE_template->mcs_UL[harq_pid],
                                             cshift, // cyclic_shift_2_for_drms
                                             0, // frequency_hopping_enabled_flag
                                             0, // frequency_hopping_bits
                                             ndi, // new_data_indication
                                             0, // redundancy_version
                                             harq_pid, // harq_process_number
                                             0, // ul_tx_mode
                                             0, // current_tx_nb
                                             0, // n_srs
                                             get_TBS_UL(UE_template->mcs_UL[harq_pid],
                                                 rb_table[rb_table_index])
                                            );
2922
#if (LTE_RRC_VERSION >= MAKE_VERSION(14, 0, 0))
Louis Adrien Dufrene's avatar
Louis Adrien Dufrene committed
2923 2924 2925 2926 2927 2928 2929 2930 2931

        if (UE_template->rach_resource_type>0) { // This is a BL/CE UE allocation
          fill_nfapi_ulsch_config_request_emtc(&ul_req_tmp->ul_config_pdu_list[ul_req_index],
                                               UE_template->rach_resource_type>2 ? 2 : 1,
                                               1, //total_number_of_repetitions
                                               1, //repetition_number
                                               (frameP*10)+subframeP);
        }

2932
#endif
Louis Adrien Dufrene's avatar
Louis Adrien Dufrene committed
2933 2934 2935 2936 2937 2938 2939 2940 2941 2942 2943 2944 2945 2946 2947 2948

        if(dlsch_flag == 1) {
          if(cqi_req == 1) {
            ul_req_tmp->ul_config_pdu_list[ul_req_index].pdu_type = NFAPI_UL_CONFIG_ULSCH_CQI_HARQ_RI_PDU_TYPE;
            ulsch_harq_information = &ul_req_tmp->ul_config_pdu_list[ul_req_index].ulsch_cqi_harq_ri_pdu.harq_information;
            ul_req_tmp->ul_config_pdu_list[ul_req_index].ulsch_cqi_harq_ri_pdu.initial_transmission_parameters.initial_transmission_parameters_rel8.tl.tag=
              NFAPI_UL_CONFIG_REQUEST_INITIAL_TRANSMISSION_PARAMETERS_REL8_TAG;
            ul_req_tmp->ul_config_pdu_list[ul_req_index].ulsch_cqi_harq_ri_pdu.initial_transmission_parameters.initial_transmission_parameters_rel8.n_srs_initial = 0;    // last symbol not punctured
            ul_req_tmp->ul_config_pdu_list[ul_req_index].ulsch_cqi_harq_ri_pdu.initial_transmission_parameters.initial_transmission_parameters_rel8.initial_number_of_resource_blocks = rb_table[rb_table_index];
          } else {
            ul_req_tmp->ul_config_pdu_list[ul_req_index].pdu_type = NFAPI_UL_CONFIG_ULSCH_HARQ_PDU_TYPE;
            ulsch_harq_information = &ul_req_tmp->ul_config_pdu_list[ul_req_index].ulsch_harq_pdu.harq_information;
            ul_req_tmp->ul_config_pdu_list[ul_req_index].ulsch_harq_pdu.initial_transmission_parameters.initial_transmission_parameters_rel8.tl.tag =
              NFAPI_UL_CONFIG_REQUEST_INITIAL_TRANSMISSION_PARAMETERS_REL8_TAG;
            ul_req_tmp->ul_config_pdu_list[ul_req_index].ulsch_harq_pdu.initial_transmission_parameters.initial_transmission_parameters_rel8.n_srs_initial = 0;  // last symbol not punctured
            ul_req_tmp->ul_config_pdu_list[ul_req_index].ulsch_harq_pdu.initial_transmission_parameters.initial_transmission_parameters_rel8.initial_number_of_resource_blocks = rb_table[rb_table_index];
2949
          }
Louis Adrien Dufrene's avatar
Louis Adrien Dufrene committed
2950 2951 2952 2953 2954 2955 2956 2957 2958 2959 2960 2961 2962 2963 2964 2965 2966 2967 2968 2969 2970 2971 2972 2973 2974 2975 2976 2977 2978 2979 2980 2981 2982 2983 2984 2985 2986 2987 2988 2989 2990 2991 2992 2993 2994 2995 2996 2997 2998 2999 3000 3001 3002 3003 3004 3005 3006 3007 3008 3009 3010 3011 3012 3013 3014 3015 3016 3017 3018 3019 3020 3021 3022 3023 3024 3025 3026 3027 3028 3029 3030 3031 3032 3033 3034 3035 3036 3037 3038 3039 3040 3041 3042 3043 3044 3045 3046 3047 3048 3049 3050 3051 3052 3053 3054 3055 3056 3057 3058 3059 3060 3061 3062 3063 3064 3065 3066 3067 3068 3069 3070 3071

          fill_nfapi_ulsch_harq_information(module_idP, CC_id,rnti, ulsch_harq_information,subframeP);
        } else {
          ul_req_tmp->number_of_pdus++;
        }

        eNB->ul_handle++;
        ul_req->header.message_id = NFAPI_UL_CONFIG_REQUEST;
        ul_req_tmp->tl.tag = NFAPI_UL_CONFIG_REQUEST_BODY_TAG;
        uint16_t ul_sched_frame = sched_frame;
        uint16_t ul_sched_subframeP = sched_subframeP;
        add_subframe(&ul_sched_frame, &ul_sched_subframeP, 2);
        ul_req->sfn_sf = ul_sched_frame<<4|ul_sched_subframeP;
        add_ue_ulsch_info(module_idP,
                          CC_id,
                          UE_id,
                          subframeP,
                          S_UL_SCHEDULED);
        LOG_D(MAC,"[eNB %d] CC_id %d Frame %d, subframeP %d: Generated ULSCH DCI for next UE_id %d, format 0\n", module_idP,CC_id,frameP,subframeP,UE_id);
        // increment first rb for next UE allocation
        first_rb[CC_id]+=rb_table[rb_table_index];

        if(ulsch_ue_select[CC_id].list[ulsch_ue_num].ue_priority == SCH_UL_FIRST) {
          UE_template->scheduled_ul_bytes += get_TBS_UL(UE_template->mcs_UL[harq_pid],rb_table[rb_table_index]);
          UE_template->ul_SR = 0;
        }

        if((ulsch_ue_select[CC_id].list[ulsch_ue_num].ue_priority == SCH_UL_INACTIVE) && (ULSCH_first_end == 0)) {
          ULSCH_first_end = 1;
          last_ulsch_ue_id[CC_id] = ulsch_ue_select[CC_id].list[ulsch_ue_num-1].UE_id;
        }

        if((ulsch_ue_num == ulsch_ue_select[CC_id].ue_num-1) && (ULSCH_first_end == 0)) {
          ULSCH_first_end = 1;
          last_ulsch_ue_id[CC_id] = ulsch_ue_select[CC_id].list[ulsch_ue_num].UE_id;
        }
      } else if (ulsch_ue_select[CC_id].list[ulsch_ue_num].ue_priority == SCH_UL_RETRANS) { // round > 0 => retransmission
        T(T_ENB_MAC_UE_UL_SCHEDULE_RETRANSMISSION, T_INT(module_idP), T_INT(CC_id), T_INT(rnti), T_INT(frameP),
          T_INT(subframeP), T_INT(harq_pid), T_INT(UE_template->mcs_UL[harq_pid]), T_INT(first_rb[CC_id]), T_INT(rb_table[rb_table_index]),
          T_INT(round));
        round = UE_sched_ctrl->round_UL[CC_id][harq_pid];
        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;
        uint8_t mcs_rv = 0;

        if(rvidx_tab[round&3]==1) {
          mcs_rv = 29;
        } else if(rvidx_tab[round&3]==2) {
          mcs_rv = 30;
        } else if(rvidx_tab[round&3]==3) {
          mcs_rv = 31;
        }

        UE_template->TBS_UL[harq_pid] = get_TBS_UL(UE_template->mcs_UL[harq_pid],ulsch_ue_select[CC_id].list[ulsch_ue_num].nb_rb);
        UE_list->eNB_UE_stats[CC_id][UE_id].ulsch_TBS=UE_template->TBS_UL[harq_pid];

        if (mac_eNB_get_rrc_status(module_idP,rnti) < RRC_CONNECTED)
          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_rv,first_rb[CC_id],rb_table[rb_table_index],rb_table_index,UE_template->TBS_UL[harq_pid],harq_pid);

        // bad indices : 20 (40 PRB), 21 (45 PRB), 22 (48 PRB)
        //store for possible retransmission
        UE_template->nb_rb_ul[harq_pid]    = ulsch_ue_select[CC_id].list[ulsch_ue_num].nb_rb;
        UE_template->first_rb_ul[harq_pid] = ulsch_ue_select[CC_id].list[ulsch_ue_num].start_rb;
        UE_sched_ctrl->ul_scheduled |= (1<<harq_pid);
        // Cyclic shift for DM RS
        cshift = 0;// values from 0 to 7 can be used for mapping the cyclic shift (36.211 , Table 5.5.2.1.1-1)
        hi_dci0_pdu                                                         = &hi_dci0_req->hi_dci0_pdu_list[hi_dci0_req->number_of_dci+hi_dci0_req->number_of_hi];
        memset((void *)hi_dci0_pdu,0,sizeof(nfapi_hi_dci0_request_pdu_t));
        hi_dci0_pdu->pdu_type                                               = NFAPI_HI_DCI0_DCI_PDU_TYPE;
        hi_dci0_pdu->pdu_size                                               = 2+sizeof(nfapi_hi_dci0_dci_pdu);
        hi_dci0_pdu->dci_pdu.dci_pdu_rel8.dci_format                        = NFAPI_UL_DCI_FORMAT_0;
        hi_dci0_pdu->dci_pdu.dci_pdu_rel8.aggregation_level                 = aggregation;
        hi_dci0_pdu->dci_pdu.dci_pdu_rel8.rnti                              = rnti;
        hi_dci0_pdu->dci_pdu.dci_pdu_rel8.transmission_power                = 6000;
        hi_dci0_pdu->dci_pdu.dci_pdu_rel8.resource_block_start              = ulsch_ue_select[CC_id].list[ulsch_ue_num].start_rb;
        hi_dci0_pdu->dci_pdu.dci_pdu_rel8.number_of_resource_block          = ulsch_ue_select[CC_id].list[ulsch_ue_num].nb_rb;
        hi_dci0_pdu->dci_pdu.dci_pdu_rel8.mcs_1                             = mcs_rv;
        hi_dci0_pdu->dci_pdu.dci_pdu_rel8.cyclic_shift_2_for_drms           = cshift;
        hi_dci0_pdu->dci_pdu.dci_pdu_rel8.frequency_hopping_enabled_flag    = 0;
        hi_dci0_pdu->dci_pdu.dci_pdu_rel8.new_data_indication_1             = UE_template->oldNDI_UL[harq_pid];
        hi_dci0_pdu->dci_pdu.dci_pdu_rel8.tpc                               = tpc;
        hi_dci0_pdu->dci_pdu.dci_pdu_rel8.cqi_csi_request                   = cqi_req;
        hi_dci0_pdu->dci_pdu.dci_pdu_rel8.dl_assignment_index               = UE_template->DAI_ul[sched_subframeP];
        hi_dci0_pdu->dci_pdu.dci_pdu_rel8.harq_pid                          = harq_pid;
        hi_dci0_req->number_of_dci++;
        // Add UL_config PDUs
        LOG_D(MAC,"[PUSCH %d] Frame %d, Subframe %d: Adding UL CONFIG.Request for UE %d/%x, ulsch_frame %d, ulsch_subframe %d\n",
              harq_pid,frameP,subframeP,UE_id,rnti,sched_frame,sched_subframeP);
        ul_req_index = 0;
        dlsch_flag = 0;

        for(ul_req_index = 0; ul_req_index < ul_req_tmp->number_of_pdus; ul_req_index++) {
          if((ul_req_tmp->ul_config_pdu_list[ul_req_index].pdu_type == NFAPI_UL_CONFIG_UCI_HARQ_PDU_TYPE) &&
              (ul_req_tmp->ul_config_pdu_list[ul_req_index].uci_harq_pdu.ue_information.ue_information_rel8.rnti == rnti)) {
            dlsch_flag = 1;
            LOG_D(MAC,"Frame %d, Subframe %d:rnti %x ul_req_index %d Switched UCI HARQ to ULSCH HARQ(phich)\n",frameP,subframeP,rnti,ul_req_index);
            break;
          }
        }

        fill_nfapi_ulsch_config_request_rel8(&ul_req_tmp->ul_config_pdu_list[ul_req_index],
                                             cqi_req,
                                             cc,
                                             UE_template->physicalConfigDedicated,
                                             get_tmode(module_idP,CC_id,UE_id),
                                             eNB->ul_handle,
                                             rnti,
                                             ulsch_ue_select[CC_id].list[ulsch_ue_num].start_rb, // resource_block_start
                                             ulsch_ue_select[CC_id].list[ulsch_ue_num].nb_rb, // number_of_resource_blocks
                                             UE_template->mcs_UL[harq_pid],
                                             cshift, // cyclic_shift_2_for_drms
                                             0, // frequency_hopping_enabled_flag
                                             0, // frequency_hopping_bits
                                             UE_template->oldNDI_UL[harq_pid], // new_data_indication
                                             rvidx_tab[round&3], // redundancy_version
                                             harq_pid, // harq_process_number
                                             0, // ul_tx_mode
                                             0, // current_tx_nb
                                             0, // n_srs
                                             UE_template->TBS_UL[harq_pid]
                                            );
3072
#if (LTE_RRC_VERSION >= MAKE_VERSION(14, 0, 0))
3073

Louis Adrien Dufrene's avatar
Louis Adrien Dufrene committed
3074 3075 3076 3077 3078 3079 3080 3081 3082
        if (UE_template->rach_resource_type>0) { // This is a BL/CE UE allocation
          fill_nfapi_ulsch_config_request_emtc(&ul_req_tmp->ul_config_pdu_list[ul_req_index],
                                               UE_template->rach_resource_type>2 ? 2 : 1,
                                               1, //total_number_of_repetitions
                                               1, //repetition_number
                                               (frameP*10)+subframeP);
        }

#endif
3083

Louis Adrien Dufrene's avatar
Louis Adrien Dufrene committed
3084 3085 3086 3087 3088 3089 3090 3091 3092 3093 3094 3095 3096 3097 3098 3099 3100
        if(dlsch_flag == 1) {
          if(cqi_req == 1) {
            ul_req_tmp->ul_config_pdu_list[ul_req_index].pdu_type = NFAPI_UL_CONFIG_ULSCH_CQI_HARQ_RI_PDU_TYPE;
            ulsch_harq_information = &ul_req_tmp->ul_config_pdu_list[ul_req_index].ulsch_cqi_harq_ri_pdu.harq_information;
            ul_req_tmp->ul_config_pdu_list[ul_req_index].ulsch_cqi_harq_ri_pdu.initial_transmission_parameters.initial_transmission_parameters_rel8.tl.tag=
              NFAPI_UL_CONFIG_REQUEST_INITIAL_TRANSMISSION_PARAMETERS_REL8_TAG;
            ul_req_tmp->ul_config_pdu_list[ul_req_index].ulsch_cqi_harq_ri_pdu.initial_transmission_parameters.initial_transmission_parameters_rel8.n_srs_initial = 0;    // last symbol not punctured
            ul_req_tmp->ul_config_pdu_list[ul_req_index].ulsch_cqi_harq_ri_pdu.initial_transmission_parameters.initial_transmission_parameters_rel8.initial_number_of_resource_blocks =
              ulsch_ue_select[CC_id].list[ulsch_ue_num].nb_rb;
          } else {
            ul_req_tmp->ul_config_pdu_list[ul_req_index].pdu_type = NFAPI_UL_CONFIG_ULSCH_HARQ_PDU_TYPE;
            ulsch_harq_information = &ul_req_tmp->ul_config_pdu_list[ul_req_index].ulsch_harq_pdu.harq_information;
            ul_req_tmp->ul_config_pdu_list[ul_req_index].ulsch_harq_pdu.initial_transmission_parameters.initial_transmission_parameters_rel8.tl.tag =
              NFAPI_UL_CONFIG_REQUEST_INITIAL_TRANSMISSION_PARAMETERS_REL8_TAG;
            ul_req_tmp->ul_config_pdu_list[ul_req_index].ulsch_harq_pdu.initial_transmission_parameters.initial_transmission_parameters_rel8.n_srs_initial = 0;  // last symbol not punctured
            ul_req_tmp->ul_config_pdu_list[ul_req_index].ulsch_harq_pdu.initial_transmission_parameters.initial_transmission_parameters_rel8.initial_number_of_resource_blocks =
              ulsch_ue_select[CC_id].list[ulsch_ue_num].nb_rb;
3101
          }
Louis Adrien Dufrene's avatar
Louis Adrien Dufrene committed
3102 3103 3104 3105 3106 3107 3108 3109 3110 3111 3112 3113 3114 3115

          fill_nfapi_ulsch_harq_information(module_idP, CC_id,rnti, ulsch_harq_information,subframeP);
        } else {
          ul_req_tmp->number_of_pdus++;
        }

        eNB->ul_handle++;
        ul_req->header.message_id = NFAPI_UL_CONFIG_REQUEST;
        ul_req_tmp->tl.tag = NFAPI_UL_CONFIG_REQUEST_BODY_TAG;
        ul_req->sfn_sf = sched_frame<<4|sched_subframeP;
        LOG_D(MAC,"[eNB %d] CC_id %d Frame %d, subframeP %d: Generated ULSCH DCI for next UE_id %d, format 0(round >0)\n", module_idP,CC_id,frameP,subframeP,UE_id);
        // increment first rb for next UE allocation
        first_rb[CC_id]+=ulsch_ue_select[CC_id].list[ulsch_ue_num].nb_rb;
      }
3116 3117 3118
    } // loop over UE_id
  } // loop of CC_id
}