/*
 * 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"

#include "PHY/phy_extern.h"
#include "PHY/LTE_TRANSPORT/transport_common_proto.h"
#include "SIMULATION/TOOLS/sim.h"
#include "LAYER2/MAC/mac_proto.h"
#include "LAYER2/MAC/mac_extern.h"
#include "LAYER2/MAC/eNB_scheduler_fairRR.h"
#include "UTIL/LOG/log.h"
#include "UTIL/LOG/vcd_signal_dumper.h"
#include "UTIL/OPT/opt.h"
#include "OCG.h"
#include "OCG_extern.h"
#include "RRC/L2_INTERFACE/openair_rrc_L2_interface.h"
#include "rlc.h"

#include "T.h"

extern uint8_t nfapi_mode;
#ifdef PHY_TX_THREAD
extern volatile int16_t phy_tx_txdataF_end;
extern int oai_exit;
#endif
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);

/* 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)
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];
#endif

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

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;
  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)
inline uint16_t search_rbs_required(uint16_t mcs, uint16_t TBS,uint16_t NB_RB, uint16_t step_size){
  uint16_t nb_rb,i_TBS,tmp_TBS;
  i_TBS=get_I_TBS(mcs);
  for(nb_rb=step_size;nb_rb<NB_RB;nb_rb+=step_size){
    tmp_TBS = TBStable[i_TBS][nb_rb-1]>>3;
    if(TBS<tmp_TBS)return(nb_rb);
  }
  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],
                                 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);
    if(N_RB_DL==50) step_size=3;
    if(N_RB_DL==100) step_size=4;
    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;

    for (UE_id = 0; UE_id <NUMBER_OF_UE_MAX; UE_id++) {
        if (pre_scd_activeUE[UE_id] != TRUE)
            continue;

        // store dlsch buffer

        // clear logical channel interface variables
        UE_template.dl_buffer_total = 0;

        rnti = UE_RNTI(module_idP, UE_id);

        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
#ifdef Rel14
                            ,0, 0
#endif
                    );
            UE_template.dl_buffer_total += rlc_status.bytes_in_buffer; //storing the total dlsch buffer
        }
         // 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]];


        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);
        }
    }
}
#endif

int cc_id_end(uint8_t *cc_id_flag )
{
  int end_flag = 1;
  for (int CC_id=0;CC_id<MAX_NUM_CCs;CC_id++) {
    if (cc_id_flag[CC_id]==0) {
      end_flag = 0;
      break;
    }
  }
  return end_flag;
}

void dlsch_scheduler_pre_ue_select_fairRR(
    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])
{
  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;
    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);
      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];
      harq_pid = frame_subframe2_dl_harq_pid(cc[CC_id].tdd_Config,frameP ,subframeP);

      round = ue_sched_ctl->round[CC_id][harq_pid];
      if (round != 8) {  // retransmission
        if(UE_list->UE_template[CC_id][UE_id].nb_rb[harq_pid] == 0){
          continue;
        }
        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;
        }
        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++;

          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++;
          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);
          }

          add_ue_dlsch_info(module_idP,
                            CC_id,
                            UE_id,
                            subframeP,
                            S_DL_NONE);
          end_flag[CC_id] = 1;
          break;
        }
      }
    }
  }
  if(cc_id_end(end_flag) == 1){
    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];
    }
    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++) {
      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) {
          continue;
        }

        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){
	    break;
          }
        }
        if(i < dlsch_ue_select[CC_id].ue_num)
          continue;

        harq_pid = frame_subframe2_dl_harq_pid(cc[CC_id].tdd_Config,frameP ,subframeP);

        round = ue_sched_ctl->round[CC_id][harq_pid];
        if (round == 8) {
            if (nb_rbs_required[CC_id][UE_id] == 0) {
              continue;
            }
            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;
            }
            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);
            }
           add_ue_dlsch_info(module_idP,
                            CC_id,
                            UE_id,
                            subframeP,
                            S_DL_NONE);
            end_flag[CC_id] = 1;
            break;
          }
      }
    }
  }
  if(cc_id_end(end_flag) == 1){
    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];
    }
    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++) {
      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) {
          continue;
        }

        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){
           break;
          }
        }
        if(i < dlsch_ue_select[CC_id].ue_num)
          continue;

        harq_pid = frame_subframe2_dl_harq_pid(cc[CC_id].tdd_Config,frameP ,subframeP);

        round = ue_sched_ctl->round[CC_id][harq_pid];
        if (round == 8) {
            if (nb_rbs_required[CC_id][UE_id] == 0) {
                continue;
             }
            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;
            }
            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);
              }
          add_ue_dlsch_info(module_idP,
                            CC_id,
                            UE_id,
                            subframeP,
                            S_DL_NONE);
              end_flag[CC_id] = 1;
              break;
            }
      }
    }
  }

  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];
  }
  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,
                                    frame_t       frameP,
                                    sub_frame_t   subframeP,
                                    int           N_RBG[MAX_NUM_CCs],
                                    int           *mbsfn_flag)
{

  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];
  int                     UE_id, i; 
  uint16_t                j;
  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];
//  uint16_t                nb_rbs_required_remaining_1[MAX_NUM_CCs][NUMBER_OF_UE_MAX];
  uint16_t                average_rbs_per_user[MAX_NUM_CCs] = {0};
  rnti_t             rnti;
  int                min_rb_unit[MAX_NUM_CCs];
//  uint16_t r1=0;
  uint8_t CC_id;
  UE_list_t *UE_list = &RC.mac[Mod_id]->UE_list;

  int N_RB_DL;
  int transmission_mode = 0;
  UE_sched_ctrl *ue_sched_ctl;
  //  int rrc_status           = RRC_IDLE;
  COMMON_channels_t *cc;

#ifdef TM5
    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;
#endif
  memset(min_rb_unit,0,sizeof(min_rb_unit));
  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;



	min_rb_unit[CC_id] = get_min_rb_unit(Mod_id, CC_id);

	for (i = 0; i < NUMBER_OF_UE_MAX; i++) {
	    if (UE_list->active[i] != TRUE)
		continue;

	    UE_id = i;
	    // Initialize scheduling information for all active UEs



	    dlsch_scheduler_pre_processor_reset(Mod_id,
						UE_id,
						CC_id,
						frameP,
						subframeP,
						N_RBG[CC_id],
						(uint16_t (*)[NUMBER_OF_UE_MAX])nb_rbs_required,
						rballoc_sub,
						MIMO_mode_indicator);

	}
    }

#if (!defined(PRE_SCD_THREAD))
    // 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);
#else
    memcpy(nb_rbs_required, pre_nb_rbs_required[dlsch_ue_select_tbl_in_use] , sizeof(uint16_t)*MAX_NUM_CCs*NUMBER_OF_UE_MAX);
#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
    N_RB_DL = to_prb(cc->mib->message.dl_Bandwidth);
    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++) {
      if(dlsch_ue_select[CC_id].list[i].ue_priority == SCH_DL_MSG2){
          temp_total_ue_count--;
          continue;
      }
      if(dlsch_ue_select[CC_id].list[i].ue_priority == SCH_DL_MSG4){
          temp_total_ue_count--;
          continue;
      }
      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);
      if( average_rbs_per_user[CC_id] < min_rb_unit[CC_id] ){
        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];
      harq_pid = frame_subframe2_dl_harq_pid(cc->tdd_Config,frameP ,subframeP);
      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);
      }

      transmission_mode = get_tmode(Mod_id,CC_id,UE_id);

      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],
                                              transmission_mode,
                                              min_rb_unit[CC_id],
                                              N_RB_DL,
                                              (uint16_t (*)[NUMBER_OF_UE_MAX])nb_rbs_required,
                                              (uint16_t (*)[NUMBER_OF_UE_MAX])nb_rbs_required_remaining,
                                              rballoc_sub,
                                              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;
      }
      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);
#ifdef TM5
      // TODO: data channel TM5: to be re-visited
#endif
    }
  }

#ifdef TM5

    // 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;
	    }
	}

	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;
	}

	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;
	}

        if((i1 < N_RBG[CC_id]) && (i3 > 0)) {
		PHY_vars_eNB_g[Mod_id][CC_id]->
		check_for_MUMIMO_transmissions + 1;
	}

	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;

    }

#endif

  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]);
	    }
	}
    }
}


//------------------------------------------------------------------------------
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;

    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;

	  }
    }

    //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;
    }

  /// CALLING Pre_Processor for downlink scheduling (Returns estimation of RBs required by each UE and the allocation on sub-band)

  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,
                                frameP,
                                subframeP,
                                N_RBG,
                                mbsfn_flag);
  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++) {
      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;
      rnti = UE_RNTI(module_idP,UE_id);
      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];
/*
      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;
      }
*/
      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);
      }

	    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;

	    sdu_length_total = 0;
	    num_sdus = 0;

	    /*
	       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);


	    // store stats
	    //UE_list->eNB_UE_stats[CC_id][UE_id].dl_cqi= eNB_UE_stats->dl_cqi;

	    // 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);



	    /* process retransmission  */

	    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);

		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];
			}
		    } 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;
			}
		    }

		    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)
#ifdef Rel14
                                                    ,0, 0
#endif
                                                   );	// 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]
#ifdef Rel14
                                                          ,0, 0
#endif
                                                         );
            pthread_mutex_lock(&rrc_release_freelist);
            if((rrc_release_info.num_UEs > 0) && (rlc_am_mui.rrc_mui_num > 0)){
              uint16_t release_total = 0;
              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){
                  release_total++;
                }else{
                  continue;
                }

                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]){
                        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;
                       }
                     }
                  }
                }
                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;
                      }
                    }
                  }
                }
                if(release_total >= rrc_release_info.num_UEs)
                  break;
              }
            }
            pthread_mutex_unlock(&rrc_release_freelist);

            RA_t *ra = &eNB->common_channels[CC_id].ra[0];
            for (uint8_t ra_ii = 0; ra_ii < NB_RA_PROC_MAX; ra_ii++) {
              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]){
                    ra[ra_ii].crnti_harq_pid = harq_pid;
                    ra[ra_ii].state = MSGCRNTI_ACK;
                    break;
                  }
                }
              }
            }
			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;
#ifdef DEBUG_eNB_SCHEDULER
			LOG_T(MAC,
			      "[eNB %d][DCCH] CC_id %d Got %d bytes :",
			      module_idP, CC_id, sdu_lengths[0]);

			for (j = 0; j < sdu_lengths[0]; j++) {
			    LOG_T(MAC, "%x ", dlsch_buffer[j]);
			}

			LOG_T(MAC, "\n");
#endif
		    } 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)
#ifdef Rel14
                                                    ,0, 0
#endif
                                                   );	// 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]
#ifdef Rel14
                                                                  ,0, 0
#endif
                                                                 );

			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++;
#ifdef DEBUG_eNB_SCHEDULER
			LOG_T(MAC,
			      "[eNB %d][DCCH1] CC_id %d Got %d bytes :",
			      module_idP, CC_id, sdu_lengths[num_sdus]);

			for (j = 0; j < sdu_lengths[num_sdus]; j++) {
			    LOG_T(MAC, "%x ", dlsch_buffer[j]);
			}

			LOG_T(MAC, "\n");
#endif

		    }
		}
		// 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
#ifdef Rel14
                                                        ,0, 0
#endif
                                                       );


			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
#endif
                                                                    );
			    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;
			}	// no data for this LCID
			else {
			    header_len_dtch -= 3;
			}
		    }		// no TBS left
		    else {
			header_len_dtch -= 3;
			break;
		    }
		}
		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);

#ifdef DEBUG_eNB_SCHEDULER
		    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);
#endif

		    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
		    }

#ifdef PHY_TX_THREAD
  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;
		    }
#endif

		    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);
		    }
		    //#endif
#ifdef DEBUG_eNB_SCHEDULER
		    LOG_T(MAC, "[eNB %d] First 16 bytes of DLSCH : \n",module_idP );

		    for (i = 0; i < 16; i++) {
			LOG_T(MAC, "%x.", dlsch_buffer[i]);
		    }

		    LOG_T(MAC, "\n");
#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) {
            trace_pdu(1, (uint8_t *)UE_list->DLSCH_pdu[CC_id][0][UE_id].payload[0],
                      TBS, module_idP, 3, UE_RNTI(module_idP,UE_id),
                      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));

	  UE_list->UE_template[CC_id][UE_id].nb_rb[harq_pid] = nb_rb;

          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);
          }

	  // do PUCCH power control
          // this is the normalized RX power
	  eNB_UE_stats =  &UE_list->eNB_UE_stats[CC_id][UE_id];

          /* TODO: fix how we deal with power, unit is not dBm, it's special from nfapi */
	  normalized_rx_power = ue_sched_ctl->pucch1_snr[CC_id];
	  target_rx_power = 208;
	    
          // 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_list->UE_template[CC_id][UE_id].pucch_tpc_tx_frame*10+UE_list->UE_template[CC_id][UE_id].pucch_tpc_tx_subframe;
          if (((framex10psubframe+10)<=(frameP*10+subframeP)) || //normal case
	      ((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);
	    
	  }
	  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

        }
      }

      if (cc[CC_id].tdd_Config != NULL){ // TDD
        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(
	       module_id_t module_idP,
	       frame_t frameP,
	       sub_frame_t subframeP,
	       int* mbsfn_flagP)
//------------------------------------------------------------------------------
{

  // 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++) {
      if(dlsch_ue_select[CC_id].list[j].ue_priority == SCH_DL_MSG2){
        continue;
      }
      if(dlsch_ue_select[CC_id].list[j].ue_priority == SCH_DL_MSG4){
        continue;
      }
      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);
        harq_pid = frame_subframe2_dl_harq_pid(cc->tdd_Config,frameP ,subframeP);
        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];
        }

	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);
	  }
         }
	}
      }
    }

    stop_meas(&eNB->fill_DLSCH_dci);
    VCD_SIGNAL_DUMPER_DUMP_FUNCTION_BY_NAME
	(VCD_SIGNAL_DUMPER_FUNCTIONS_FILL_DLSCH_DCI, VCD_FUNCTION_OUT);
}



void ulsch_scheduler_pre_ue_select_fairRR(
    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])
{
  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];
//  LTE_DL_FRAME_PARMS *frame_parms;
  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++ ) {
      //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;

  }
  // UE round >0
  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);
      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 ) {
            continue;
        }
        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;
          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++;
              continue;
          }
      }
      //
      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]++;
          continue;
        }
        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;
        }
        UE_sched_ctl = &UE_list->UE_sched_ctrl[UE_id];
        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;
        }
        /*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;
          }
        }*/
      }

  }

  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;
    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]);
      if (CCE_allocation_infeasible(module_idP,CC_id,format_flag,subframeP,aggregation,rnti) == 1) {
    	  cc_id_flag[CC_id] = 1;
          break;
      } 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;
          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++;
      }
    }
  }

  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);
    if (rnti ==NOT_A_RNTI)
        continue;

    CC_id = UE_PCCID(module_idP,UE_id);

    if (UE_id > last_ulsch_ue_id[CC_id])
        continue;

    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;

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

    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;
      }
    }
    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
        UE_sched_ctl = &UE_list->UE_sched_ctrl[UE_id];

    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 ( (bytes_to_schedule > 0) || (UE_list->UE_template[CC_id][UE_id].ul_SR > 0) ||
          ((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;
          }
    }
    //inactivity UE
/*    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;
        }
    }*/
  }

  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;
    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]);
      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_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++;
      }
    }
    HI_DCI0_req->number_of_dci = saved_ulsch_dci[CC_id];
  }
  return;
}

uint8_t find_rb_table_index(uint8_t average_rbs)
{
  int i;
  for ( i = 0; i < 34; i++ ) {
    if ( rb_table[i] > average_rbs ) {
      return (i-1);
    }
  }
  return i;
}

void ulsch_scheduler_pre_processor_fairRR(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])
{
  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;
  rnti_t             rnti;
  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);
    if (cc->tdd_Config) { //TDD
      if (frame_parms->N_RB_UL == 25) {
          num_pucch_rb = 1;
      } else if (frame_parms->N_RB_UL == 50) {
          num_pucch_rb = 2;
      } else {
          num_pucch_rb = 3;
      }
    } else {//FDD
      if (frame_parms->N_RB_UL == 25) {
          num_pucch_rb = 1;
      } else {
          num_pucch_rb = 2;
      }
    }

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

      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;
      }

      rnti = UE_RNTI(CC_id,UE_id);

      if (first_rb[CC_id] >= frame_parms->N_RB_UL-num_pucch_rb ) {
         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;
      }
      total_rbs = frame_parms->N_RB_UL-num_pucch_rb-first_rb[CC_id];

      average_rbs = (int)round((double)total_rbs/(double)ue_num_temp);
      if ( average_rbs < 3 ) {
        ue_num_temp--;
        ulsch_ue_num--;
        ulsch_ue_select[CC_id].ue_num--;
        continue;
      }
      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 ) {
            // 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;
        }
        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 ) {
              // 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;
          } else {
              // 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];
          }
        }
      }else{
        UE_template = &UE_list->UE_template[CC_id][UE_id];
        if ( UE_list->UE_sched_ctrl[UE_id].phr_received == 1 ) {
          mcs = 20;
        } else {
          mcs = 10;
        }
        if ( ulsch_ue_select[CC_id].list[ulsch_ue_num].ue_priority  == SCH_UL_FIRST ) {
          int bytes_to_schedule = UE_template->estimated_ul_buffer - UE_template->scheduled_ul_bytes;
          if (bytes_to_schedule < 0) bytes_to_schedule = 0;

          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);

            while ( (((UE_template->phr_info - tx_power) < 0 ) || (tbs > bytes_to_schedule)) && (mcs > 3) ) {
              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);
            }

            while ( (tbs < bytes_to_schedule) && (rb_table[rb_table_index]<(frame_parms->N_RB_UL-num_pucch_rb-first_rb[CC_id])) &&
                   ((UE_template->phr_info - tx_power) > 0) && (rb_table_index < 32 )) {
              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;
            }
            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];
              UE_list->UE_template[CC_id][UE_id].pre_allocated_nb_rb_ul[0] = rb_table[rb_table_index];
              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;
            }
            if ( rb_table[rb_table_index] > average_rbs ) {
              // assigne RBS(average_rbs)
              rb_table_index = find_rb_table_index(average_rbs);
              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,rnti,CC_id,average_rbs);
                  break;
              }
              first_rb[CC_id] = first_rb[CC_id] + rb_table[rb_table_index];
              UE_list->UE_template[CC_id][UE_id].pre_allocated_nb_rb_ul[0] = rb_table[rb_table_index];
              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;
            }
          }else {
            // assigne RBS( 3 RBs)
            first_rb[CC_id] = first_rb[CC_id] + 3;
            UE_list->UE_template[CC_id][UE_id].pre_allocated_nb_rb_ul[0] = 3;
            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;
          }
        }else if ( ulsch_ue_select[CC_id].list[ulsch_ue_num].ue_priority  == SCH_UL_INACTIVE ) {
          // assigne RBS( 3 RBs)
          first_rb[CC_id] = first_rb[CC_id] + 3;
          UE_list->UE_template[CC_id][UE_id].pre_allocated_nb_rb_ul[0] = 3;
          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;
        }
      }
      ue_num_temp--;
    }
  }
}


void
schedule_ulsch_fairRR(module_id_t module_idP, frame_t frameP,
	       sub_frame_t subframeP)
{
  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;
  // 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;
    switch (subframeP) {
    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;
    }
  }
  if (sched_subframe < subframeP) sched_frame++;
  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;
    // 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++) {
      if ((cc->ra[i].state == WAITMSG3) &&(cc->ra[i].Msg3_subframe == sched_subframe)) {  
        ulsch_ue_select[CC_id].list[ulsch_ue_select[CC_id].ue_num].ue_priority = SCH_UL_MSG3;
        if (cc->tdd_Config == NULL) {
            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;
            }
        } else {
            switch(frame_parms->N_RB_UL){
            case 25:
            default:
              ulsch_ue_select[CC_id].list[ulsch_ue_select[CC_id].ue_num].start_rb = 1;
              break;
            case 50:
              ulsch_ue_select[CC_id].list[ulsch_ue_select[CC_id].ue_num].start_rb = 2;
              break;
            case 100:
              ulsch_ue_select[CC_id].list[ulsch_ue_select[CC_id].ue_num].start_rb = 3;
              break;
            }
        }
        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(
    		                                                                 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
      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,
                         frame_t       frameP,
                         sub_frame_t   subframeP,
                         unsigned char sched_subframeP,
                         ULSCH_UE_SELECT  ulsch_ue_select[MAX_NUM_CCs])
{
  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;
    uint8_t           rb_table_index = -1;
  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;
  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,
                                frameP,
                                subframeP,
                                sched_subframeP,
                                ulsch_ue_select);

  LOG_D(MAC,"exiting ulsch preprocesor\n");



  // loop over all active UEs
  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;
      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];

    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);
    //leave out first RB for PUCCH
    if (cc->tdd_Config == NULL) {
        if(N_RB_UL == 25){
          first_rb[CC_id] = 1;
        }else{
          first_rb[CC_id] = 2;
        }
    }else {
        switch(N_RB_UL){
        case 25:
        default:
            first_rb[CC_id] = 1;
          break;
        case 50:
            first_rb[CC_id] = 2;
          break;
        case 100:
            first_rb[CC_id] = 3;
          break;
        }
    }
    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;
      /* be sure that there are some free RBs */
      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;
              }
          }
      } else {
          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;
            }
          }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;
              }
          }
      }
      //MSG3
      if (ulsch_ue_select[CC_id].list[ulsch_ue_num].ue_priority == SCH_UL_MSG3) {
        first_rb[CC_id] ++;
        continue;
      }
      //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);

      int bytes_to_schedule = UE_template->estimated_ul_buffer - UE_template->scheduled_ul_bytes;
      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;
      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);
      if (status < RRC_CONNECTED)
        cqi_req = 0;
      else if (UE_sched_ctrl->cqi_req_timer>30) {
        cqi_req = 1;
        UE_sched_ctrl->cqi_req_timer=0;
        UE_sched_ctrl->cqi_req_flag |= 1 << sched_subframeP;
      }
      else
        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
      normalized_rx_power = UE_sched_ctrl->pusch_snr[CC_id];
      target_rx_power = 178;

      // 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;
      if (((framex10psubframe+10)<=(frameP*10+subframeP)) || //normal case
          ((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++;
          } else {
            tpc = 1; //0
          }
        } 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",
              module_idP,frameP,subframeP,harq_pid,tpc,
              tpc_accumulated,normalized_rx_power,target_rx_power);
        }
          // 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
            }
            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])
                                                 );
#ifdef Rel14
            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
            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];
                }
                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]
                                                 );
#ifdef Rel14
            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
              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;
                  }
                  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;
          }
    } // loop over UE_id
  } // loop of CC_id
}
