fapi_l1.c 35.3 KB
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/*
 * 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 1.0  (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 fapi_l1.c
 * \brief functions for FAPI L1 interface
 * \author R. Knopp
 * \date 2017
 * \version 0.1
 * \company Eurecom
 * \email: knopp@eurecom.fr
 * \note
 * \warning
 */

#include "PHY/defs.h"
#include "PHY/extern.h"
#include "SCHED/defs.h"
#include "SCHED/extern.h"
#include "nfapi_interface.h"
#include "fapi_l1.h"

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void handle_nfapi_dci_dl_pdu(PHY_VARS_eNB *eNB,
                             eNB_rxtx_proc_t *proc,
                             nfapi_dl_config_request_pdu_t *dl_config_pdu)
{
  int idx                         = proc->subframe_tx&1;
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  LTE_eNB_PDCCH *pdcch_vars       = &eNB->pdcch_vars[idx];
  nfapi_dl_config_dci_dl_pdu *pdu = &dl_config_pdu->dci_dl_pdu;

  LOG_D(PHY,"Frame %d, Subframe %d: DCI processing\n",proc->frame_tx,proc->subframe_tx);

  // copy dci configuration into eNB structure
  fill_dci_and_dlsch(eNB,proc,&pdcch_vars->dci_alloc[pdcch_vars->num_dci],pdu);
}

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void handle_nfapi_mpdcch_pdu(PHY_VARS_eNB *eNB,
                             eNB_rxtx_proc_t *proc,
                             nfapi_dl_config_request_pdu_t *dl_config_pdu)
{
  int idx                         = proc->subframe_tx&1;
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  LTE_eNB_MPDCCH *mpdcch_vars     = &eNB->mpdcch_vars[idx];
  nfapi_dl_config_mpdcch_pdu *pdu = &dl_config_pdu->mpdcch_pdu;

  LOG_D(PHY,"Frame %d, Subframe %d: MDCI processing\n",proc->frame_tx,proc->subframe_tx);

  // copy dci configuration into eNB structure
  fill_mdci_and_dlsch(eNB,proc,&mpdcch_vars->mdci_alloc[mpdcch_vars->num_dci],pdu);
}

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void handle_nfapi_hi_dci0_dci_pdu(PHY_VARS_eNB *eNB,eNB_rxtx_proc_t *proc,
                                  nfapi_hi_dci0_request_pdu_t *hi_dci0_config_pdu)
{
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  int idx                         = proc->subframe_tx&1;
  LTE_eNB_PDCCH *pdcch_vars       = &eNB->pdcch_vars[idx];
  // copy dci configuration in to eNB structure
  fill_dci0(eNB,proc,&pdcch_vars->dci_alloc[pdcch_vars->num_dci], &hi_dci0_config_pdu->dci_pdu);
}

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void handle_nfapi_hi_dci0_hi_pdu(PHY_VARS_eNB *eNB,eNB_rxtx_proc_t *proc,
                                 nfapi_hi_dci0_request_pdu_t *hi_dci0_config_pdu)
{
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  LTE_eNB_PHICH *phich           = &eNB->phich_vars[proc->subframe_tx&1];

  // copy dci configuration in to eNB structure
  LOG_D(PHY,"Received HI PDU which value %d (rbstart %d,cshift %d)\n",
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        hi_dci0_config_pdu->hi_pdu.hi_pdu_rel8.hi_value,
        hi_dci0_config_pdu->hi_pdu.hi_pdu_rel8.resource_block_start,
        hi_dci0_config_pdu->hi_pdu.hi_pdu_rel8.cyclic_shift_2_for_drms);
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  phich->config[phich->num_hi].hi       = hi_dci0_config_pdu->hi_pdu.hi_pdu_rel8.hi_value;
  phich->config[phich->num_hi].first_rb = hi_dci0_config_pdu->hi_pdu.hi_pdu_rel8.resource_block_start;
  phich->config[phich->num_hi].n_DMRS   = hi_dci0_config_pdu->hi_pdu.hi_pdu_rel8.cyclic_shift_2_for_drms;
  phich->num_hi++;
  AssertFatal(phich->num_hi<32,"Maximum number of phich reached in subframe\n");
}

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void handle_nfapi_bch_pdu(PHY_VARS_eNB *eNB,eNB_rxtx_proc_t *proc,
                          nfapi_dl_config_request_pdu_t *dl_config_pdu,
                          uint8_t *sdu)
{
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  nfapi_dl_config_bch_pdu_rel8_t *rel8 = &dl_config_pdu->bch_pdu.bch_pdu_rel8;
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  AssertFatal(rel8->length == 3, "BCH PDU has length %d != 3\n",rel8->length);

  LOG_D(PHY,"bch_pdu: %x,%x,%x\n",sdu[0],sdu[1],sdu[2]);
  eNB->pbch_pdu[0] = sdu[2];
  eNB->pbch_pdu[1] = sdu[1];
  eNB->pbch_pdu[2] = sdu[0];

  // adjust transmit amplitude here based on NFAPI info
}

#ifdef Rel14
extern uint32_t localRIV2alloc_LUT6[32];
extern uint32_t localRIV2alloc_LUT25[512];
extern uint32_t localRIV2alloc_LUT50_0[1600];
extern uint32_t localRIV2alloc_LUT50_1[1600];
extern uint32_t localRIV2alloc_LUT100_0[6000];
extern uint32_t localRIV2alloc_LUT100_1[6000];
extern uint32_t localRIV2alloc_LUT100_2[6000];
extern uint32_t localRIV2alloc_LUT100_3[6000];
#endif

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void handle_nfapi_dlsch_pdu(PHY_VARS_eNB *eNB,eNB_rxtx_proc_t *proc,
                            nfapi_dl_config_request_pdu_t *dl_config_pdu,
                            uint8_t codeword_index,
                            uint8_t *sdu)
{
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  nfapi_dl_config_dlsch_pdu_rel8_t *rel8 = &dl_config_pdu->dlsch_pdu.dlsch_pdu_rel8;
#ifndef Rel8
  nfapi_dl_config_dlsch_pdu_rel10_t *rel10 = &dl_config_pdu->dlsch_pdu.dlsch_pdu_rel10;
#endif
#ifdef Rel14
  nfapi_dl_config_dlsch_pdu_rel13_t *rel13 = &dl_config_pdu->dlsch_pdu.dlsch_pdu_rel13;
#endif
  LTE_eNB_DLSCH_t *dlsch0=NULL,*dlsch1=NULL;
  LTE_DL_eNB_HARQ_t *dlsch0_harq=NULL,*dlsch1_harq=NULL;
  int UE_id;
  int harq_pid;
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  UE_id = find_dlsch(rel8->rnti,eNB,SEARCH_EXIST_OR_FREE);
  AssertFatal(UE_id!=-1,"no free or exiting dlsch_context\n");
  AssertFatal(UE_id<NUMBER_OF_UE_MAX,"returned UE_id %d >= %d(NUMBER_OF_UE_MAX)\n",UE_id,NUMBER_OF_UE_MAX);
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  dlsch0 = eNB->dlsch[UE_id][0];
  dlsch1 = eNB->dlsch[UE_id][1];

#ifdef Rel14
  if ((rel13->pdsch_payload_type < 2) && (rel13->ue_type>0)) dlsch0->harq_ids[proc->subframe_tx] = 0;
#endif

  harq_pid        = dlsch0->harq_ids[proc->subframe_tx];
  AssertFatal((harq_pid>=0) && (harq_pid<8),"harq_pid %d not in 0...7\n",harq_pid);
  dlsch0_harq     = dlsch0->harq_processes[harq_pid];
  dlsch1_harq     = dlsch1->harq_processes[harq_pid];
  AssertFatal(dlsch0_harq!=NULL,"dlsch_harq is null\n");

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  // compute DL power control parameters
  eNB->pdsch_config_dedicated[UE_id].p_a = rel8->pa;

  if (dlsch0->active){
    computeRhoA_eNB(&eNB->pdsch_config_dedicated[UE_id], dlsch0,dlsch0_harq->dl_power_off, eNB->frame_parms.nb_antenna_ports_eNB);
    computeRhoB_eNB(&eNB->pdsch_config_dedicated[UE_id],&(eNB->frame_parms.pdsch_config_common),eNB->frame_parms.nb_antenna_ports_eNB,dlsch0,dlsch0_harq->dl_power_off);
  }
  if (dlsch1->active){
    computeRhoA_eNB(&eNB->pdsch_config_dedicated[UE_id], dlsch1,dlsch1_harq->dl_power_off, eNB->frame_parms.nb_antenna_ports_eNB);
    computeRhoB_eNB(&eNB->pdsch_config_dedicated[UE_id],&(eNB->frame_parms.pdsch_config_common),eNB->frame_parms.nb_antenna_ports_eNB,dlsch1,dlsch1_harq->dl_power_off);
  }

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  dlsch0_harq->pdsch_start = eNB->pdcch_vars[proc->subframe_tx & 1].num_pdcch_symbols;

  if (dlsch0_harq->round==0) {  //get pointer to SDU if this a new SDU
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    AssertFatal(sdu!=NULL,"NFAPI: frame %d, subframe %d: programming dlsch for round 0, rnti %x, UE_id %d, harq_pid %d : sdu is null for pdu_index %d\n",
                proc->frame_tx,proc->subframe_tx,rel8->rnti,UE_id,harq_pid,
                dl_config_pdu->dlsch_pdu.dlsch_pdu_rel8.pdu_index);
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    if (rel8->rnti != 0xFFFF) LOG_D(PHY,"NFAPI: frame %d, subframe %d: programming dlsch for round 0, rnti %x, UE_id %d, harq_pid %d\n",
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                                    proc->frame_tx,proc->subframe_tx,rel8->rnti,UE_id,harq_pid);
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    if (codeword_index == 0) dlsch0_harq->pdu                    = sdu;
    else                     dlsch1_harq->pdu                    = sdu;
  }
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  else {
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    if (rel8->rnti != 0xFFFF) LOG_D(PHY,"NFAPI: frame %d, subframe %d: programming dlsch for round %d, rnti %x, UE_id %d, harq_pid %d\n",
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                                    proc->frame_tx,proc->subframe_tx,dlsch0_harq->round,
                                    rel8->rnti,UE_id,harq_pid);
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  }
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#ifdef Rel14
  dlsch0->sib1_br_flag=0;

  if ((rel13->pdsch_payload_type <2) && (rel13->ue_type>0)) { // this is a BR/CE UE and SIB1-BR/SI-BR
    dlsch0->rnti             = 0xFFFF;
    dlsch0->Kmimo            = 1;
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    dlsch0->Mdlharq          = 4;
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    dlsch0->Nsoft            = 25344;
    dlsch0->i0               = rel13->initial_transmission_sf_io;
    dlsch0_harq->pdsch_start = rel10->pdsch_start;

    if (rel13->pdsch_payload_type == 0) dlsch0->sib1_br_flag=1;

    // configure PDSCH
    switch (eNB->frame_parms.N_RB_DL) {
    case 6:
      dlsch0_harq->rb_alloc[0]      = localRIV2alloc_LUT6[rel8->resource_block_coding];
      break;
    case 15:
      AssertFatal(1==0,"15 PRBs not supported for now\n");
      break;
    case 25:
      dlsch0_harq->rb_alloc[0]      = localRIV2alloc_LUT25[rel8->resource_block_coding];
      break;
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    case 50:
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      dlsch0_harq->rb_alloc[0]      = localRIV2alloc_LUT50_0[rel8->resource_block_coding];
      dlsch0_harq->rb_alloc[1]      = localRIV2alloc_LUT50_1[rel8->resource_block_coding];
      break;
    case 75:
      AssertFatal(1==0,"75 PRBs not supported for now\n");
      break;
    case 100:
      dlsch0_harq->rb_alloc[0]      = localRIV2alloc_LUT100_0[rel8->resource_block_coding];
      dlsch0_harq->rb_alloc[1]      = localRIV2alloc_LUT100_1[rel8->resource_block_coding];
      dlsch0_harq->rb_alloc[2]      = localRIV2alloc_LUT100_2[rel8->resource_block_coding];
      dlsch0_harq->rb_alloc[3]      = localRIV2alloc_LUT100_3[rel8->resource_block_coding];
    }

    dlsch0->active                  = 1;
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    dlsch0_harq->nb_rb              = 6;
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    dlsch0_harq->vrb_type           = LOCALIZED;
    dlsch0_harq->rvidx              = rel8->redundancy_version;
    dlsch0_harq->Nl                 = 1;
    dlsch0_harq->mimo_mode          = (eNB->frame_parms.nb_antenna_ports_eNB == 1) ? SISO : ALAMOUTI;
    dlsch0_harq->dl_power_off       = 1;
    dlsch0_harq->round              = 0;
    dlsch0_harq->status             = ACTIVE;
    dlsch0_harq->TBS                = rel8->length<<3;
    dlsch0_harq->Qm                 = rel8->modulation;
    dlsch0_harq->codeword           = 0;
  }
  else {
    dlsch0->i0               = 0xFFFF;
  }
#endif
}

uint16_t to_beta_offset_harqack[16]={16,20,25,32,40,50,64,80,101,127,160,248,400,640,1008,8};

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void handle_ulsch_harq_pdu(
        PHY_VARS_eNB                           *eNB,
        int                                     UE_id,
        nfapi_ul_config_request_pdu_t          *ul_config_pdu,
        nfapi_ul_config_ulsch_harq_information *harq_information,
        uint16_t                                frame,
        uint8_t                                 subframe)
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{
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  nfapi_ul_config_ulsch_pdu_rel8_t *rel8 = &ul_config_pdu->ulsch_harq_pdu.ulsch_pdu.ulsch_pdu_rel8;

  LTE_eNB_ULSCH_t *ulsch=eNB->ulsch[UE_id];
  LTE_UL_eNB_HARQ_t *ulsch_harq;

  int harq_pid = rel8->harq_process_number;
  ulsch_harq = ulsch->harq_processes[harq_pid];
  ulsch_harq->frame                      = frame;
  ulsch_harq->subframe                   = subframe;
  ulsch_harq->O_ACK                      = harq_information->harq_information_rel10.harq_size;
  ulsch->beta_offset_harqack_times8      = to_beta_offset_harqack[harq_information->harq_information_rel10.delta_offset_harq];
}

uint16_t to_beta_offset_ri[16]={9,13,16,20,25,32,40,50,64,80,101,127,160,0,0,0};
uint16_t to_beta_offset_cqi[16]={0,0,9,10,11,13,14,16,18,20,23,25,28,32,40,50};

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void handle_ulsch_cqi_ri_pdu(PHY_VARS_eNB *eNB,int UE_id,nfapi_ul_config_request_pdu_t *ul_config_pdu,uint16_t frame,uint8_t subframe)
{
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  nfapi_ul_config_cqi_ri_information_rel9_t *rel9 = &ul_config_pdu->ulsch_cqi_ri_pdu.cqi_ri_information.cqi_ri_information_rel9;

  LTE_eNB_ULSCH_t *ulsch        = eNB->ulsch[UE_id];
  int harq_pid = ul_config_pdu->ulsch_pdu.ulsch_pdu_rel8.harq_process_number;
  LTE_UL_eNB_HARQ_t *ulsch_harq = ulsch->harq_processes[harq_pid];

  ulsch_harq->frame                       = frame;
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  ulsch_harq->subframe                    = subframe;
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  ulsch_harq->O_RI                        = rel9->aperiodic_cqi_pmi_ri_report.cc[0].ri_size;
  ulsch_harq->Or1                         = rel9->aperiodic_cqi_pmi_ri_report.cc[0].dl_cqi_pmi_size[0];
  if (ulsch_harq->O_RI>1) ulsch_harq->Or2 = rel9->aperiodic_cqi_pmi_ri_report.cc[0].dl_cqi_pmi_size[1];
  ulsch->beta_offset_ri_times8            = to_beta_offset_ri[rel9->delta_offset_ri];
  ulsch->beta_offset_cqi_times8           = to_beta_offset_cqi[rel9->delta_offset_cqi];
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  LOG_D(PHY,"Filling ulsch_cqi_ri information for frame %d, subframe %d : O_RI %d, Or1 %d, beta_offset_cqi_times8 %d (%d)\n",
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        frame,subframe,ulsch_harq->O_RI,ulsch_harq->Or1,ulsch->beta_offset_cqi_times8,
        rel9->delta_offset_cqi);
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}

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void handle_ulsch_cqi_harq_ri_pdu(PHY_VARS_eNB *eNB,int UE_id,nfapi_ul_config_request_pdu_t *ul_config_pdu,uint16_t frame,uint8_t subframe)
{
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  nfapi_ul_config_cqi_ri_information_rel9_t *rel9 = &ul_config_pdu->ulsch_cqi_harq_ri_pdu.cqi_ri_information.cqi_ri_information_rel9;

  LTE_eNB_ULSCH_t *ulsch        = eNB->ulsch[UE_id];
  int harq_pid = ul_config_pdu->ulsch_pdu.ulsch_pdu_rel8.harq_process_number;
  LTE_UL_eNB_HARQ_t *ulsch_harq = ulsch->harq_processes[harq_pid];
  nfapi_ul_config_ulsch_harq_information *harq_information = &ul_config_pdu->ulsch_cqi_harq_ri_pdu.harq_information;

  ulsch_harq->frame                       = frame;
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  ulsch_harq->subframe                    = subframe;
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  ulsch_harq->O_RI                        = rel9->aperiodic_cqi_pmi_ri_report.cc[0].ri_size;
  ulsch_harq->Or1                         = rel9->aperiodic_cqi_pmi_ri_report.cc[0].dl_cqi_pmi_size[0];
  ulsch_harq->O_ACK                       = harq_information->harq_information_rel10.harq_size;

  if (ulsch_harq->O_RI>1) ulsch_harq->Or2 = rel9->aperiodic_cqi_pmi_ri_report.cc[0].dl_cqi_pmi_size[1];

  ulsch->beta_offset_harqack_times8       = to_beta_offset_harqack[harq_information->harq_information_rel10.delta_offset_harq];
  ulsch->beta_offset_ri_times8            = to_beta_offset_ri[rel9->delta_offset_ri];
  ulsch->beta_offset_cqi_times8           = to_beta_offset_cqi[rel9->delta_offset_cqi];
}

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void handle_uci_harq_information(PHY_VARS_eNB *eNB, LTE_eNB_UCI *uci,nfapi_ul_config_harq_information *harq_information)
{
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  if (eNB->frame_parms.frame_type == FDD) {
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    uci->num_pucch_resources = harq_information->harq_information_rel9_fdd.number_of_pucch_resources;
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    LOG_D(PHY,"Programming UCI HARQ mode %d : size %d in (%d,%d)\n",
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          harq_information->harq_information_rel9_fdd.ack_nack_mode,
          harq_information->harq_information_rel9_fdd.harq_size,
          uci->frame,uci->subframe);
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    if ((harq_information->harq_information_rel9_fdd.ack_nack_mode == 0) &&
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        (harq_information->harq_information_rel9_fdd.harq_size == 1)) {
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      uci->pucch_fmt =  pucch_format1a;
      uci->n_pucch_1[0][0] = harq_information->harq_information_rel9_fdd.n_pucch_1_0;
      uci->n_pucch_1[0][1] = harq_information->harq_information_rel11.n_pucch_2_0;
    }
    else if ((harq_information->harq_information_rel9_fdd.ack_nack_mode == 0) &&
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             (harq_information->harq_information_rel9_fdd.harq_size == 2)) {
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      uci->pucch_fmt =  pucch_format1b;
      uci->n_pucch_1[0][0] = harq_information->harq_information_rel9_fdd.n_pucch_1_0;
      uci->n_pucch_1[0][1] = harq_information->harq_information_rel11.n_pucch_2_0;
    }
    else if ((harq_information->harq_information_rel9_fdd.ack_nack_mode == 1) &&
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             (harq_information->harq_information_rel9_fdd.harq_size == 2)) {
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      uci->pucch_fmt =  pucch_format1b_csA2;
      uci->n_pucch_1[0][0] = harq_information->harq_information_rel9_fdd.n_pucch_1_0;
      uci->n_pucch_1[0][1] = harq_information->harq_information_rel11.n_pucch_2_0;
      uci->n_pucch_1[1][0] = harq_information->harq_information_rel9_fdd.n_pucch_1_1;
      uci->n_pucch_1[1][1] = harq_information->harq_information_rel11.n_pucch_2_1;
    }
    else if ((harq_information->harq_information_rel9_fdd.ack_nack_mode == 1) &&
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             (harq_information->harq_information_rel9_fdd.harq_size == 3)) {
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      uci->pucch_fmt =  pucch_format1b_csA3;
      uci->n_pucch_1[0][0] = harq_information->harq_information_rel9_fdd.n_pucch_1_0;
      uci->n_pucch_1[0][1] = harq_information->harq_information_rel11.n_pucch_2_0;
      uci->n_pucch_1[1][0] = harq_information->harq_information_rel9_fdd.n_pucch_1_1;
      uci->n_pucch_1[1][1] = harq_information->harq_information_rel11.n_pucch_2_1;
      uci->n_pucch_1[2][0] = harq_information->harq_information_rel9_fdd.n_pucch_1_2;
      uci->n_pucch_1[2][1] = harq_information->harq_information_rel11.n_pucch_2_2;
    }
    else if ((harq_information->harq_information_rel9_fdd.ack_nack_mode == 1) &&
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             (harq_information->harq_information_rel9_fdd.harq_size == 4)) {
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      uci->pucch_fmt =  pucch_format1b_csA4;
      uci->n_pucch_1[0][0] = harq_information->harq_information_rel9_fdd.n_pucch_1_0;
      uci->n_pucch_1[0][1] = harq_information->harq_information_rel11.n_pucch_2_0;
      uci->n_pucch_1[1][0] = harq_information->harq_information_rel9_fdd.n_pucch_1_1;
      uci->n_pucch_1[1][1] = harq_information->harq_information_rel11.n_pucch_2_1;
      uci->n_pucch_1[2][0] = harq_information->harq_information_rel9_fdd.n_pucch_1_2;
      uci->n_pucch_1[2][1] = harq_information->harq_information_rel11.n_pucch_2_2;
    }
    else if (harq_information->harq_information_rel9_fdd.ack_nack_mode == 2) {
      uci->pucch_fmt =  pucch_format3;
      uci->n_pucch_3[0] = harq_information->harq_information_rel9_fdd.n_pucch_1_0;
      uci->n_pucch_3[1] = harq_information->harq_information_rel11.n_pucch_2_0;
    }
    else AssertFatal(1==0,"unsupported HARQ mode %d\n",harq_information->harq_information_rel9_fdd.ack_nack_mode);
  }
  else { // TDD
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    uci->num_pucch_resources = harq_information->harq_information_rel10_tdd.number_of_pucch_resources;
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    if (harq_information->harq_information_rel10_tdd.ack_nack_mode == 0) {//bundling

      uci->pucch_fmt =  harq_information->harq_information_rel10_tdd.harq_size==1 ? pucch_format1a : pucch_format1b;
      uci->tdd_bundling = 1;
      uci->n_pucch_1[0][0] = harq_information->harq_information_rel10_tdd.n_pucch_1_0;
      uci->n_pucch_1[0][1] = harq_information->harq_information_rel11.n_pucch_2_0;
    }
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    else if ((harq_information->harq_information_rel10_tdd.ack_nack_mode == 1) && //multiplexing
             (uci->num_pucch_resources == 1)) {
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      uci->pucch_fmt = harq_information->harq_information_rel10_tdd.harq_size==1 ? pucch_format1a : pucch_format1b;
      uci->tdd_bundling = 0;
      uci->n_pucch_1[0][0] = harq_information->harq_information_rel10_tdd.n_pucch_1_0;
      uci->n_pucch_1[0][1] = harq_information->harq_information_rel11.n_pucch_2_0;
    }
    else if ((harq_information->harq_information_rel10_tdd.ack_nack_mode == 1) && //multiplexing M>1
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             (uci->num_pucch_resources > 1)) {
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      uci->pucch_fmt = pucch_format1b;
      uci->tdd_bundling = 0;
      uci->n_pucch_1[0][0] = harq_information->harq_information_rel10_tdd.n_pucch_1_0;
      uci->n_pucch_1[0][1] = harq_information->harq_information_rel11.n_pucch_2_0;
      uci->n_pucch_1[1][0] = harq_information->harq_information_rel10_tdd.n_pucch_1_1;
      uci->n_pucch_1[1][1] = harq_information->harq_information_rel11.n_pucch_2_1;
      uci->n_pucch_1[2][0] = harq_information->harq_information_rel10_tdd.n_pucch_1_2;
      uci->n_pucch_1[2][1] = harq_information->harq_information_rel11.n_pucch_2_2;
      uci->n_pucch_1[3][0] = harq_information->harq_information_rel10_tdd.n_pucch_1_3;
      uci->n_pucch_1[3][1] = harq_information->harq_information_rel11.n_pucch_2_3;
    }
    else if (harq_information->harq_information_rel10_tdd.ack_nack_mode == 2) {
      uci->pucch_fmt =  pucch_format3;
      uci->n_pucch_3[0] = harq_information->harq_information_rel10_tdd.n_pucch_1_0;
      uci->n_pucch_3[1] = harq_information->harq_information_rel11.n_pucch_2_0;
    }
    else AssertFatal(1==0,"unsupported HARQ mode %d\n",harq_information->harq_information_rel10_tdd.ack_nack_mode);
  }
}

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void handle_uci_sr_pdu(PHY_VARS_eNB *eNB,int UE_id,nfapi_ul_config_request_pdu_t *ul_config_pdu,uint16_t frame,uint8_t subframe,uint8_t srs_active)
{
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  LTE_eNB_UCI *uci = &eNB->uci_vars[UE_id];

  uci->frame               = frame;
  uci->subframe            = subframe;
  uci->rnti                = ul_config_pdu->uci_sr_pdu.ue_information.ue_information_rel8.rnti;
  uci->type                = SR;
  uci->pucch_fmt           = pucch_format1;
  uci->num_antenna_ports   = 1;
  uci->num_pucch_resources = 1;
  uci->n_pucch_1_0_sr[0]   = ul_config_pdu->uci_sr_pdu.sr_information.sr_information_rel8.pucch_index;
  uci->srs_active          = srs_active;
  uci->active              = 1;

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  LOG_D(PHY,"Programming UCI SR rnti %x, pucch1_0 %d for (%d,%d)\n",
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        uci->rnti,uci->n_pucch_1_0_sr[0],frame,subframe);
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}

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void handle_uci_sr_harq_pdu(PHY_VARS_eNB *eNB,int UE_id,nfapi_ul_config_request_pdu_t *ul_config_pdu,uint16_t frame,uint8_t subframe,uint8_t srs_active)
{
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  LTE_eNB_UCI *uci = &eNB->uci_vars[UE_id];

  uci->frame               = frame;
  uci->subframe            = subframe;
  uci->rnti                = ul_config_pdu->uci_sr_harq_pdu.ue_information.ue_information_rel8.rnti;
  uci->type                = HARQ_SR;
  uci->num_antenna_ports   = 1;
  uci->num_pucch_resources = 1;
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  uci->n_pucch_1_0_sr[0]   = ul_config_pdu->uci_sr_harq_pdu.sr_information.sr_information_rel8.pucch_index;
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  uci->srs_active          = srs_active;
  uci->active              = 1;

  handle_uci_harq_information(eNB,uci,&ul_config_pdu->uci_sr_harq_pdu.harq_information);
}

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void handle_uci_harq_pdu(PHY_VARS_eNB *eNB,int UE_id,nfapi_ul_config_request_pdu_t *ul_config_pdu,uint16_t frame,uint8_t subframe,uint8_t srs_active)
{
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  LTE_eNB_UCI *uci = &eNB->uci_vars[UE_id];

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  LOG_D(PHY,"Frame %d, Subframe %d: Programming UCI_HARQ process (type %d)\n",frame,subframe,HARQ);
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  uci->frame             = frame;
  uci->subframe          = subframe;
  uci->rnti              = ul_config_pdu->uci_harq_pdu.ue_information.ue_information_rel8.rnti;
  uci->type              = HARQ;
  uci->srs_active        = srs_active;
  uci->num_antenna_ports = ul_config_pdu->uci_harq_pdu.harq_information.harq_information_rel11.num_ant_ports;

  handle_uci_harq_information(eNB,uci,&ul_config_pdu->uci_harq_pdu.harq_information);

  uci->active=1;
}

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void handle_srs_pdu(PHY_VARS_eNB *eNB,nfapi_ul_config_request_pdu_t *ul_config_pdu,uint16_t frame,uint8_t subframe)
{
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  int i;

  for (i=0;i<NUMBER_OF_UE_MAX;i++) {
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    if (eNB->soundingrs_ul_config_dedicated[i].active==1) continue;
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    eNB->soundingrs_ul_config_dedicated[i].active               = 1;
    eNB->soundingrs_ul_config_dedicated[i].frame                = frame;
    eNB->soundingrs_ul_config_dedicated[i].subframe             = subframe;
    eNB->soundingrs_ul_config_dedicated[i].rnti                 = ul_config_pdu->srs_pdu.srs_pdu_rel8.rnti;
    eNB->soundingrs_ul_config_dedicated[i].srs_Bandwidth        = ul_config_pdu->srs_pdu.srs_pdu_rel8.srs_bandwidth;
    eNB->soundingrs_ul_config_dedicated[i].srs_HoppingBandwidth = ul_config_pdu->srs_pdu.srs_pdu_rel8.srs_hopping_bandwidth;
    eNB->soundingrs_ul_config_dedicated[i].freqDomainPosition   = ul_config_pdu->srs_pdu.srs_pdu_rel8.frequency_domain_position;
    eNB->soundingrs_ul_config_dedicated[i].transmissionComb     = ul_config_pdu->srs_pdu.srs_pdu_rel8.transmission_comb;
    eNB->soundingrs_ul_config_dedicated[i].srs_ConfigIndex      = ul_config_pdu->srs_pdu.srs_pdu_rel8.i_srs;
    eNB->soundingrs_ul_config_dedicated[i].cyclicShift          = ul_config_pdu->srs_pdu.srs_pdu_rel8.sounding_reference_cyclic_shift;
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    break;
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  }
  AssertFatal(i<NUMBER_OF_UE_MAX,"No room for SRS processing\n");
}

void handle_nfapi_ul_pdu(PHY_VARS_eNB *eNB,eNB_rxtx_proc_t *proc,
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                         nfapi_ul_config_request_pdu_t *ul_config_pdu,
                         uint16_t frame,uint8_t subframe,uint8_t srs_present)
{
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  nfapi_ul_config_ulsch_pdu_rel8_t *rel8 = &ul_config_pdu->ulsch_pdu.ulsch_pdu_rel8;

  int8_t UE_id;

  // check if we have received a dci for this ue and ulsch descriptor is configured

  if (ul_config_pdu->pdu_type == NFAPI_UL_CONFIG_ULSCH_PDU_TYPE) {
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    AssertFatal((UE_id = find_ulsch(ul_config_pdu->ulsch_pdu.ulsch_pdu_rel8.rnti,eNB,SEARCH_EXIST_OR_FREE))>=0,
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                "No existing UE ULSCH for rnti %x\n",rel8->rnti);
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    LOG_D(PHY,"Applying UL config for UE %d, rnti %x for frame %d, subframe %d\n",
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          UE_id,rel8->rnti,frame,subframe);
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    fill_ulsch(eNB,&ul_config_pdu->ulsch_pdu,frame,subframe);

  }
  else if (ul_config_pdu->pdu_type == NFAPI_UL_CONFIG_ULSCH_HARQ_PDU_TYPE) {
    AssertFatal((UE_id = find_ulsch(ul_config_pdu->ulsch_harq_pdu.ulsch_pdu.ulsch_pdu_rel8.rnti,eNB,SEARCH_EXIST_OR_FREE))>=0,
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                "No available UE ULSCH for rnti %x\n",ul_config_pdu->ulsch_harq_pdu.ulsch_pdu.ulsch_pdu_rel8.rnti);
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    fill_ulsch(eNB,&ul_config_pdu->ulsch_harq_pdu.ulsch_pdu,frame,subframe);
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    handle_ulsch_harq_pdu(eNB, UE_id, ul_config_pdu,
        &ul_config_pdu->ulsch_harq_pdu.harq_information, frame, subframe);
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  }
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  else if (ul_config_pdu->pdu_type == NFAPI_UL_CONFIG_ULSCH_CQI_RI_PDU_TYPE) {
    AssertFatal((UE_id = find_ulsch(ul_config_pdu->ulsch_cqi_ri_pdu.ulsch_pdu.ulsch_pdu_rel8.rnti,
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                                    eNB,SEARCH_EXIST_OR_FREE))>=0,
                "No available UE ULSCH for rnti %x\n",ul_config_pdu->ulsch_cqi_ri_pdu.ulsch_pdu.ulsch_pdu_rel8.rnti);
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    fill_ulsch(eNB,&ul_config_pdu->ulsch_cqi_ri_pdu.ulsch_pdu,frame,subframe);
    handle_ulsch_cqi_ri_pdu(eNB,UE_id,ul_config_pdu,frame,subframe);

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  }
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  else if (ul_config_pdu->pdu_type == NFAPI_UL_CONFIG_ULSCH_CQI_HARQ_RI_PDU_TYPE) {
    AssertFatal((UE_id = find_ulsch(ul_config_pdu->ulsch_cqi_harq_ri_pdu.ulsch_pdu.ulsch_pdu_rel8.rnti,
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                                    eNB,SEARCH_EXIST_OR_FREE))>=0,
                "No available UE ULSCH for rnti %x\n",ul_config_pdu->ulsch_cqi_harq_ri_pdu.ulsch_pdu.ulsch_pdu_rel8.rnti);
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    fill_ulsch(eNB,&ul_config_pdu->ulsch_cqi_harq_ri_pdu.ulsch_pdu,frame,subframe);
    handle_ulsch_cqi_harq_ri_pdu(eNB,UE_id,ul_config_pdu,frame,subframe);
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    handle_ulsch_harq_pdu(eNB, UE_id, ul_config_pdu,
        &ul_config_pdu->ulsch_cqi_harq_ri_pdu.harq_information, frame, subframe);
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  }
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  else if (ul_config_pdu->pdu_type == NFAPI_UL_CONFIG_UCI_HARQ_PDU_TYPE) {
    AssertFatal((UE_id = find_uci(ul_config_pdu->uci_harq_pdu.ue_information.ue_information_rel8.rnti,
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                                  proc->frame_tx,proc->subframe_tx,eNB,SEARCH_EXIST_OR_FREE))>=0,
                "No available UE UCI for rnti %x\n",ul_config_pdu->uci_harq_pdu.ue_information.ue_information_rel8.rnti);
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    handle_uci_harq_pdu(eNB,UE_id,ul_config_pdu,frame,subframe,srs_present);
  }
  else if (ul_config_pdu->pdu_type == NFAPI_UL_CONFIG_UCI_CQI_PDU_TYPE) {
    AssertFatal(1==0,"NFAPI_UL_CONFIG_UCI_CQI_PDU_TYPE not handled yet\n");
  }
  else if (ul_config_pdu->pdu_type == NFAPI_UL_CONFIG_UCI_CQI_HARQ_PDU_TYPE) {
    AssertFatal(1==0,"NFAPI_UL_CONFIG_UCI_CQI_HARQ_PDU_TYPE not handled yet\n");
  }
  else if (ul_config_pdu->pdu_type == NFAPI_UL_CONFIG_UCI_CQI_SR_PDU_TYPE) {
    AssertFatal(1==0,"NFAPI_UL_CONFIG_UCI_CQI_SR_PDU_TYPE not handled yet\n");
  }
  else if (ul_config_pdu->pdu_type == NFAPI_UL_CONFIG_UCI_SR_PDU_TYPE) {
    AssertFatal((UE_id = find_uci(ul_config_pdu->uci_sr_pdu.ue_information.ue_information_rel8.rnti,
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                                  proc->frame_tx,proc->subframe_tx,eNB,SEARCH_EXIST_OR_FREE))>=0,
                "No available UE UCI for rnti %x\n",ul_config_pdu->uci_sr_pdu.ue_information.ue_information_rel8.rnti);
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    handle_uci_sr_pdu(eNB,UE_id,ul_config_pdu,frame,subframe,srs_present);
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  }
  else if (ul_config_pdu->pdu_type == NFAPI_UL_CONFIG_UCI_SR_HARQ_PDU_TYPE) {
    AssertFatal((UE_id = find_uci(rel8->rnti,proc->frame_tx,proc->subframe_tx,eNB,SEARCH_EXIST_OR_FREE))>=0,
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                "No available UE UCI for rnti %x\n",ul_config_pdu->uci_sr_harq_pdu.ue_information.ue_information_rel8.rnti);
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    handle_uci_sr_harq_pdu(eNB,UE_id,ul_config_pdu,frame,subframe,srs_present);
  }
  else if (ul_config_pdu->pdu_type == NFAPI_UL_CONFIG_SRS_PDU_TYPE) {
    handle_srs_pdu(eNB,ul_config_pdu,frame,subframe);
  }
}

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void schedule_response(Sched_Rsp_t *Sched_INFO)
{
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  PHY_VARS_eNB *eNB;
  eNB_rxtx_proc_t *proc;
  // copy data from L2 interface into L1 structures
  module_id_t               Mod_id       = Sched_INFO->module_id;
  uint8_t                   CC_id        = Sched_INFO->CC_id;
  nfapi_dl_config_request_t *DL_req      = Sched_INFO->DL_req;
  nfapi_hi_dci0_request_t   *HI_DCI0_req = Sched_INFO->HI_DCI0_req;
  nfapi_ul_config_request_t *UL_req      = Sched_INFO->UL_req;
  nfapi_tx_request_t        *TX_req      = Sched_INFO->TX_req;
  frame_t                   frame        = Sched_INFO->frame;
  sub_frame_t               subframe     = Sched_INFO->subframe;
  LTE_DL_FRAME_PARMS        *fp;
  int                       ul_subframe;
  int                       ul_frame;
  int                       harq_pid;
  LTE_UL_eNB_HARQ_t         *ulsch_harq;

  AssertFatal(RC.eNB!=NULL,"RC.eNB is null\n");
  AssertFatal(RC.eNB[Mod_id]!=NULL,"RC.eNB[%d] is null\n",Mod_id);
  AssertFatal(RC.eNB[Mod_id][CC_id]!=NULL,"RC.eNB[%d][%d] is null\n",Mod_id,CC_id);

  eNB         = RC.eNB[Mod_id][CC_id];
  fp          = &eNB->frame_parms;
  proc        = &eNB->proc.proc_rxtx[0];
  ul_subframe = pdcch_alloc2ul_subframe(fp,subframe);
  ul_frame    = pdcch_alloc2ul_frame(fp,frame,subframe);

  AssertFatal(proc->subframe_tx == subframe, "Current subframe %d != NFAPI subframe %d\n",proc->subframe_tx,subframe);
  AssertFatal(proc->subframe_tx == subframe, "Current frame %d != NFAPI frame %d\n",proc->frame_tx,frame);

  uint8_t number_dl_pdu             = DL_req->dl_config_request_body.number_pdu;
  uint8_t number_hi_dci0_pdu        = HI_DCI0_req->hi_dci0_request_body.number_of_dci+HI_DCI0_req->hi_dci0_request_body.number_of_hi;
  uint8_t number_ul_pdu             = UL_req->ul_config_request_body.number_of_pdus;

  nfapi_dl_config_request_pdu_t *dl_config_pdu;
  nfapi_hi_dci0_request_pdu_t   *hi_dci0_req_pdu;
  nfapi_ul_config_request_pdu_t *ul_config_pdu;

  int i;

  eNB->pdcch_vars[subframe&1].num_pdcch_symbols = DL_req->dl_config_request_body.number_pdcch_ofdm_symbols;
  eNB->pdcch_vars[subframe&1].num_dci           = 0;
  eNB->phich_vars[subframe&1].num_hi            = 0;

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  LOG_D(PHY,"NFAPI: Frame %d, Subframe %d: received %d dl_pdu, %d tx_req, %d hi_dci0_config_req, %d UL_config \n",
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        frame,subframe,number_dl_pdu,TX_req->tx_request_body.number_of_pdus,number_hi_dci0_pdu,number_ul_pdu);

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  if ((subframe_select(fp,ul_subframe)==SF_UL) ||
      (fp->frame_type == FDD)) {
    harq_pid = subframe2harq_pid(fp,ul_frame,ul_subframe);

    // clear DCI allocation maps for new subframe
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    for (i=0; i<NUMBER_OF_UE_MAX; i++) {
      if (eNB->ulsch[i]) {
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        ulsch_harq = eNB->ulsch[i]->harq_processes[harq_pid];
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        ulsch_harq->dci_alloc=0;
        ulsch_harq->rar_alloc=0;
      }
    }
  }
  for (i=0;i<number_dl_pdu;i++) {
    dl_config_pdu = &DL_req->dl_config_request_body.dl_config_pdu_list[i];
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    LOG_D(PHY,"NFAPI: dl_pdu %d : type %d\n",i,dl_config_pdu->pdu_type);
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    switch (dl_config_pdu->pdu_type) {
    case NFAPI_DL_CONFIG_DCI_DL_PDU_TYPE:
      handle_nfapi_dci_dl_pdu(eNB,proc,dl_config_pdu);
      eNB->pdcch_vars[subframe&1].num_dci++;
      break;
    case NFAPI_DL_CONFIG_BCH_PDU_TYPE:
      AssertFatal(dl_config_pdu->bch_pdu.bch_pdu_rel8.pdu_index<TX_req->tx_request_body.number_of_pdus,
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                  "bch_pdu_rel8.pdu_index>=TX_req->number_of_pdus (%d>%d)\n",
                  dl_config_pdu->bch_pdu.bch_pdu_rel8.pdu_index,
                  TX_req->tx_request_body.number_of_pdus);
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      eNB->pbch_configured=1;
      handle_nfapi_bch_pdu(eNB,proc,dl_config_pdu,
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                           TX_req->tx_request_body.tx_pdu_list[dl_config_pdu->bch_pdu.bch_pdu_rel8.pdu_index].segments[0].segment_data);
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      break;
    case NFAPI_DL_CONFIG_MCH_PDU_TYPE:
      //      handle_nfapi_mch_dl_pdu(eNB,dl_config_pdu);
      break;
    case NFAPI_DL_CONFIG_DLSCH_PDU_TYPE:
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      /*
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      AssertFatal(dl_config_pdu->dlsch_pdu.dlsch_pdu_rel8.pdu_index<TX_req->tx_request_body.number_of_pdus,
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                  "dlsch_pdu_rel8.pdu_index>=TX_req->number_of_pdus (%d>%d)\n",
                  dl_config_pdu->dlsch_pdu.dlsch_pdu_rel8.pdu_index,
                  TX_req->tx_request_body.number_of_pdus);
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      */
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      AssertFatal((dl_config_pdu->dlsch_pdu.dlsch_pdu_rel8.transport_blocks<3) &&
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                  (dl_config_pdu->dlsch_pdu.dlsch_pdu_rel8.transport_blocks>0),
                  "dl_config_pdu->dlsch_pdu.dlsch_pdu_rel8.transport_blocks = %d not in [1,2]\n",
                  dl_config_pdu->dlsch_pdu.dlsch_pdu_rel8.transport_blocks);
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      handle_nfapi_dlsch_pdu(eNB,proc,dl_config_pdu,
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                             dl_config_pdu->dlsch_pdu.dlsch_pdu_rel8.transport_blocks-1,
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                             dl_config_pdu->dlsch_pdu.dlsch_pdu_rel8.pdu_index == -1 ? NULL
                               : TX_req->tx_request_body.tx_pdu_list[dl_config_pdu->dlsch_pdu.dlsch_pdu_rel8.pdu_index].segments[0].segment_data);
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      /*
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      if (dl_config_pdu->dlsch_pdu.dlsch_pdu_rel8.rnti == eNB->preamble_list[0].preamble_rel8.rnti) {// is RAR pdu
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        LOG_D(PHY,"Frame %d, Subframe %d: Received LTE RAR pdu, programming based on UL Grant\n",frame,subframe);
        generate_eNB_ulsch_params_from_rar(eNB,
                                           TX_req->tx_request_body.tx_pdu_list[dl_config_pdu->dlsch_pdu.dlsch_pdu_rel8.pdu_index].segments[0].segment_data,
                                           frame,
                                           subframe);

                                           }        */
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      break;
    case NFAPI_DL_CONFIG_PCH_PDU_TYPE:
      //      handle_nfapi_pch_pdu(eNB,dl_config_pdu);
      break;
    case NFAPI_DL_CONFIG_PRS_PDU_TYPE:
      //      handle_nfapi_prs_pdu(eNB,dl_config_pdu);
      break;
    case NFAPI_DL_CONFIG_CSI_RS_PDU_TYPE:
      //      handle_nfapi_csi_rs_pdu(eNB,dl_config_pdu);
      break;
    case NFAPI_DL_CONFIG_EPDCCH_DL_PDU_TYPE:
      //      handle_nfapi_epdcch_pdu(eNB,dl_config_pdu);
      break;
    case NFAPI_DL_CONFIG_MPDCCH_PDU_TYPE:
      handle_nfapi_mpdcch_pdu(eNB,proc,dl_config_pdu);
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      eNB->mpdcch_vars[subframe&1].num_dci++;
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      break;
    }
  }
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  for (i=0;i<number_hi_dci0_pdu;i++) {

    hi_dci0_req_pdu = &HI_DCI0_req->hi_dci0_request_body.hi_dci0_pdu_list[i];

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    LOG_D(PHY,"NFAPI: hi_dci0_pdu %d : type %d\n",i,hi_dci0_req_pdu->pdu_type);
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    switch (hi_dci0_req_pdu->pdu_type) {


    case NFAPI_HI_DCI0_DCI_PDU_TYPE:
      handle_nfapi_hi_dci0_dci_pdu(eNB,proc,hi_dci0_req_pdu);
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      eNB->pdcch_vars[subframe&1].num_dci++;
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      break;

    case NFAPI_HI_DCI0_HI_PDU_TYPE:
      handle_nfapi_hi_dci0_hi_pdu(eNB,proc,hi_dci0_req_pdu);

      break;
    }
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  }
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  for (i=0;i<number_ul_pdu;i++) {
    ul_config_pdu = &UL_req->ul_config_request_body.ul_config_pdu_list[i];
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    LOG_D(PHY,"NFAPI: ul_pdu %d : type %d\n",i,ul_config_pdu->pdu_type);
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    AssertFatal(ul_config_pdu->pdu_type == NFAPI_UL_CONFIG_ULSCH_PDU_TYPE ||
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                ul_config_pdu->pdu_type == NFAPI_UL_CONFIG_ULSCH_HARQ_PDU_TYPE ||
                ul_config_pdu->pdu_type == NFAPI_UL_CONFIG_ULSCH_CQI_RI_PDU_TYPE ||
                ul_config_pdu->pdu_type == NFAPI_UL_CONFIG_ULSCH_CQI_HARQ_RI_PDU_TYPE ||
                ul_config_pdu->pdu_type == NFAPI_UL_CONFIG_UCI_HARQ_PDU_TYPE ||
                ul_config_pdu->pdu_type == NFAPI_UL_CONFIG_UCI_SR_PDU_TYPE ||
                ul_config_pdu->pdu_type == NFAPI_UL_CONFIG_UCI_SR_HARQ_PDU_TYPE
                ,
                "Optional UL_PDU type %d not supported\n",ul_config_pdu->pdu_type);
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    handle_nfapi_ul_pdu(eNB,proc,ul_config_pdu,UL_req->sfn_sf>>4,UL_req->sfn_sf&0xf,UL_req->ul_config_request_body.srs_present);
  }
}