dci_tools.c 365 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
 */

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/*! \file PHY/LTE_TRANSPORT/dci_tools.c
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 * \brief PHY Support routines (eNB/UE) for filling PDSCH/PUSCH/DLSCH/ULSCH data structures based on DCI PDUs generated by eNB MAC scheduler.
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 * \author R. Knopp
 * \date 2011
 * \version 0.1
 * \company Eurecom
 * \email: knopp@eurecom.fr
 * \note
 * \warning
 */
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#include "PHY/defs.h"
#include "PHY/extern.h"
#include "SCHED/defs.h"
#ifdef DEBUG_DCI_TOOLS
#include "PHY/vars.h"
#endif
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#include "assertions.h"
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#include "nfapi_interface.h"
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//#define DEBUG_HARQ
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#include "LAYER2/MAC/extern.h"
#include "LAYER2/MAC/defs.h"

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//#define DEBUG_DCI

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uint32_t localRIV2alloc_LUT6[32];
uint32_t distRIV2alloc_even_LUT6[32];
uint32_t distRIV2alloc_odd_LUT6[32];
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uint16_t RIV2nb_rb_LUT6[32];
uint16_t RIV2first_rb_LUT6[32];
uint16_t RIV_max6=0;

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uint32_t localRIV2alloc_LUT25[512];
uint32_t distRIV2alloc_even_LUT25[512];
uint32_t distRIV2alloc_odd_LUT25[512];
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uint16_t RIV2nb_rb_LUT25[512];
uint16_t RIV2first_rb_LUT25[512];
uint16_t RIV_max25=0;


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uint32_t localRIV2alloc_LUT50_0[1600];
uint32_t localRIV2alloc_LUT50_1[1600];
uint32_t distRIV2alloc_gap0_even_LUT50_0[1600];
uint32_t distRIV2alloc_gap0_odd_LUT50_0[1600];
uint32_t distRIV2alloc_gap0_even_LUT50_1[1600];
uint32_t distRIV2alloc_gap0_odd_LUT50_1[1600];
uint32_t distRIV2alloc_gap1_even_LUT50_0[1600];
uint32_t distRIV2alloc_gap1_odd_LUT50_0[1600];
uint32_t distRIV2alloc_gap1_even_LUT50_1[1600];
uint32_t distRIV2alloc_gap1_odd_LUT50_1[1600];
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uint16_t RIV2nb_rb_LUT50[1600];
uint16_t RIV2first_rb_LUT50[1600];
uint16_t RIV_max50=0;

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uint32_t localRIV2alloc_LUT100_0[6000];
uint32_t localRIV2alloc_LUT100_1[6000];
uint32_t localRIV2alloc_LUT100_2[6000];
uint32_t localRIV2alloc_LUT100_3[6000];
uint32_t distRIV2alloc_gap0_even_LUT100_0[6000];
uint32_t distRIV2alloc_gap0_odd_LUT100_0[6000];
uint32_t distRIV2alloc_gap0_even_LUT100_1[6000];
uint32_t distRIV2alloc_gap0_odd_LUT100_1[6000];
uint32_t distRIV2alloc_gap0_even_LUT100_2[6000];
uint32_t distRIV2alloc_gap0_odd_LUT100_2[6000];
uint32_t distRIV2alloc_gap0_even_LUT100_3[6000];
uint32_t distRIV2alloc_gap0_odd_LUT100_3[6000];
uint32_t distRIV2alloc_gap1_even_LUT100_0[6000];
uint32_t distRIV2alloc_gap1_odd_LUT100_0[6000];
uint32_t distRIV2alloc_gap1_even_LUT100_1[6000];
uint32_t distRIV2alloc_gap1_odd_LUT100_1[6000];
uint32_t distRIV2alloc_gap1_even_LUT100_2[6000];
uint32_t distRIV2alloc_gap1_odd_LUT100_2[6000];
uint32_t distRIV2alloc_gap1_even_LUT100_3[6000];
uint32_t distRIV2alloc_gap1_odd_LUT100_3[6000];
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uint16_t RIV2nb_rb_LUT100[6000];
uint16_t RIV2first_rb_LUT100[6000];
uint16_t RIV_max100=0;


extern uint32_t current_dlsch_cqi;

// Table 8.6.3-3 36.213
uint16_t beta_cqi[16] = {0,   //reserved
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                         0,   //reserved
                         9,   //1.125
                         10,  //1.250
                         11,  //1.375
                         13,  //1.625
                         14,  //1.750
                         16,  //2.000
                         18,  //2.250
                         20,  //2.500
                         23,  //2.875
                         25,  //3.125
                         28,  //3.500
                         32,  //4.000
                         40,  //5.000
                         50
                        }; //6.250
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// Table 8.6.3-2 36.213
uint16_t beta_ri[16] = {10,   //1.250
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                        13,   //1.625
                        16,   //2.000
                        20,   //2.500
                        25,   //3.125
                        32,   //4.000
                        40,   //5.000
                        50,   //6.250
                        64,   //8.000
                        80,   //10.000
                        101,  //12.625
                        127,  //15.875
                        160,  //20.000
                        0,    //reserved
                        0,    //reserved
                        0
                       };   //reserved
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// Table 8.6.3-2 36.213
uint16_t beta_ack[16] = {16,  //2.000
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                         20,  //2.500
                         25,  //3.125
                         32,  //4.000
                         40,  //5.000
                         50,  //6.250
                         64,  //8.000
                         80,  //10.000
                         101, //12.625
                         127, //15.875
                         160, //20.000
                         248, //31.000
                         400, //50.000
                         640, //80.000
                         808
                        };//126.00
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int8_t delta_PUSCH_abs[4] = {-4,-1,1,4};
int8_t delta_PUSCH_acc[4] = {-1,0,1,3};

int8_t *delta_PUCCH_lut = delta_PUSCH_acc;
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void conv_eMTC_rballoc(uint16_t resource_block_coding,
		       uint32_t N_RB_DL,
		       uint32_t *rb_alloc) {

   
  int narrowband = resource_block_coding>>5;
  int RIV        = resource_block_coding&31;
  int N_NB_DL    = N_RB_DL/6;
  int i0         = (N_RB_DL>>1) - (3*N_NB_DL);
  int first_rb   = (6*narrowband)+i0;
  int alloc      = localRIV2alloc_LUT6[RIV];
  int ind        = first_rb>>5;
  int ind_mod    = first_rb&31;

  if (((N_RB_DL&1) > 0) && (narrowband>=(N_NB_DL>>1))) first_rb++;
  rb_alloc[0]                        = 0;
  rb_alloc[1]                        = 0;
  rb_alloc[2]                        = 0;
  rb_alloc[3]                        = 0;
  rb_alloc[ind]                      = alloc<<ind_mod;
  if (ind_mod > 26)  rb_alloc[ind+1] = alloc>>(6-(ind_mod-26)); 
}

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void conv_rballoc(uint8_t ra_header,uint32_t rb_alloc,uint32_t N_RB_DL,uint32_t *rb_alloc2)
{
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  uint32_t i,shift,subset;
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  rb_alloc2[0] = 0;
  rb_alloc2[1] = 0;
  rb_alloc2[2] = 0;
  rb_alloc2[3] = 0;
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  //  printf("N_RB_DL %d, ra_header %d, rb_alloc %x\n",N_RB_DL,ra_header,rb_alloc);

  switch (N_RB_DL) {

  case 6:
    rb_alloc2[0] = rb_alloc&0x3f;
    break;

  case 25:
    if (ra_header == 0) {// Type 0 Allocation
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      for (i=12; i>0; i--) {
        if ((rb_alloc&(1<<i)) != 0)
          rb_alloc2[0] |= (3<<((2*(12-i))));

        //      printf("rb_alloc2 (type 0) %x\n",rb_alloc2);
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      }
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      if ((rb_alloc&1) != 0)
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        rb_alloc2[0] |= (1<<24);
    } else {
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      subset = rb_alloc&1;
      shift  = (rb_alloc>>1)&1;
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      for (i=0; i<11; i++) {
        if ((rb_alloc&(1<<(i+2))) != 0)
          rb_alloc2[0] |= (1<<(2*i));

        //printf("rb_alloc2 (type 1) %x\n",rb_alloc2);
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      }
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      if ((shift == 0) && (subset == 1))
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        rb_alloc2[0]<<=1;
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      else if ((shift == 1) && (subset == 0))
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        rb_alloc2[0]<<=4;
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      else if ((shift == 1) && (subset == 1))
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        rb_alloc2[0]<<=3;
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    }
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    break;
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  case 50:
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    AssertFatal(ra_header==0,"resource type 1 not supported for  N_RB_DL=50\n");
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    for (i=16; i>0; i--) {
      if ((rb_alloc&(1<<i)) != 0)
	rb_alloc2[(3*(16-i))>>5] |= (7<<((3*(16-i))%32));
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    }
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    // bit mask across
    if ((rb_alloc2[0]>>31)==1)
      rb_alloc2[1] |= 1;
    
    if ((rb_alloc&1) != 0)
      rb_alloc2[1] |= (3<<16);
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    break;

  case 100:
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    AssertFatal(ra_header==0,"resource type 1 not supported for  N_RB_DL=100\n");
    for (i=0; i<25; i++) {
      if ((rb_alloc&(1<<(24-i))) != 0)
	rb_alloc2[(4*i)>>5] |= (0xf<<((4*i)%32));
      
      //  printf("rb_alloc2[%d] (type 0) %x (%d)\n",(4*i)>>5,rb_alloc2[(4*i)>>5],rb_alloc&(1<<i));
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    }
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    break;

  default:
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    LOG_E(PHY,"Invalid N_RB_DL %d\n", N_RB_DL);
    DevParam (N_RB_DL, 0, 0);
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    break;
  }

}



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uint32_t conv_nprb(uint8_t ra_header,uint32_t rb_alloc,int N_RB_DL)
{
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  uint32_t nprb=0,i;

  switch (N_RB_DL) {
  case 6:
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    for (i=0; i<6; i++) {
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      if ((rb_alloc&(1<<i)) != 0)
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        nprb += 1;
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    }
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    break;
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  case 25:
    if (ra_header == 0) {// Type 0 Allocation
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      for (i=12; i>0; i--) {
        if ((rb_alloc&(1<<i)) != 0)
          nprb += 2;
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      }
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      if ((rb_alloc&1) != 0)
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        nprb += 1;
    } else {
      for (i=0; i<11; i++) {
        if ((rb_alloc&(1<<(i+2))) != 0)
          nprb += 1;
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      }
    }
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    break;
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  case 50:
    if (ra_header == 0) {// Type 0 Allocation
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      for (i=0; i<16; i++) {
        if ((rb_alloc&(1<<(16-i))) != 0)
          nprb += 3;
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      }
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      if ((rb_alloc&1) != 0)
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        nprb += 2;
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    } else {
      for (i=0; i<17; i++) {
        if ((rb_alloc&(1<<(i+2))) != 0)
          nprb += 1;
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      }
    }
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    break;
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  case 100:
    if (ra_header == 0) {// Type 0 Allocation
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      for (i=0; i<25; i++) {
        if ((rb_alloc&(1<<(24-i))) != 0)
          nprb += 4;
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      }
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    } else {
      for (i=0; i<25; i++) {
        if ((rb_alloc&(1<<(i+2))) != 0)
          nprb += 1;
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      }
    }
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    break;
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  default:
    LOG_E(PHY,"Invalide N_RB_DL %d\n", N_RB_DL);
    DevParam (N_RB_DL, 0, 0);
    break;
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  }

  return(nprb);
}

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uint16_t computeRIV(uint16_t N_RB_DL,uint16_t RBstart,uint16_t Lcrbs)
{
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  uint16_t RIV;
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  if (Lcrbs<=(1+(N_RB_DL>>1)))
    RIV = (N_RB_DL*(Lcrbs-1)) + RBstart;
  else
    RIV = (N_RB_DL*(N_RB_DL+1-Lcrbs)) + (N_RB_DL-1-RBstart);
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  return(RIV);
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}

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// Convert a DCI Format 1C RIV to a Format 1A RIV
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// This extracts the start and length in PRBs from the 1C rballoc and
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// recomputes the RIV as if it were the 1A rballoc

uint32_t conv_1C_RIV(int32_t rballoc,uint32_t N_RB_DL) {

  int NpDLVRB,N_RB_step,LpCRBsm1,RBpstart;

  switch (N_RB_DL) {

  case 6: // N_RB_step = 2, NDLVRB = 6, NpDLVRB = 3
    NpDLVRB   = 3;
    N_RB_step = 2;
    break;
  case 25: // N_RB_step = 2, NDLVRB = 24, NpDLVRB = 12
    NpDLVRB   = 12;
    N_RB_step = 2;
    break;
  case 50: // N_RB_step = 4, NDLVRB = 46, NpDLVRB = 11
    NpDLVRB   = 11;
    N_RB_step = 4;
    break;
  case 100: // N_RB_step = 4, NDLVRB = 96, NpDLVRB = 24
    NpDLVRB   = 24;
    N_RB_step = 4;
    break;
  default:
    NpDLVRB   = 24;
    N_RB_step = 4;
    break;
  }

  // This is the 1C part from 7.1.6.3 in 36.213
  LpCRBsm1 = rballoc/NpDLVRB;
  //  printf("LpCRBs = %d\n",LpCRBsm1+1);

  if (LpCRBsm1 <= (NpDLVRB/2)) {
    RBpstart = rballoc % NpDLVRB;
  }
  else {
    LpCRBsm1 = NpDLVRB-LpCRBsm1;
    RBpstart = NpDLVRB-(rballoc%NpDLVRB);
  }
  //  printf("RBpstart %d\n",RBpstart);
  return(computeRIV(N_RB_DL,N_RB_step*RBpstart,N_RB_step*(LpCRBsm1+1)));
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}

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uint32_t get_prb(int N_RB_DL,int odd_slot,int vrb,int Ngap) {
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  int offset;

  switch (N_RB_DL) {
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  case 6:
  // N_RB_DL = tildeN_RB_DL = 6
  // Ngap = 4 , P=1, Nrow = 2, Nnull = 2
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    switch (vrb) {
    case 0:  // even: 0->0, 1->2, odd: 0->3, 1->5
    case 1:
      return ((3*odd_slot) + 2*(vrb&3))%6;
      break;
    case 2:  // even: 2->3, 3->5, odd: 2->0, 3->2
    case 3:
      return ((3*odd_slot) + 2*(vrb&3) + 5)%6;
      break;
    case 4:  // even: 4->1, odd: 4->4
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      return ((3*odd_slot) + 1)%6;
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    case 5:  // even: 5->4, odd: 5->1
      return ((3*odd_slot) + 4)%6;
      break;
    }
    break;
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  case 15:
    if (vrb<12) {
      if ((vrb&3) < 2)     // even: 0->0, 1->4, 4->1, 5->5, 8->2, 9->6 odd: 0->7, 1->11
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  return(((7*odd_slot) + 4*(vrb&3) + (vrb>>2))%14) + 14*(vrb/14);
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      else if (vrb < 12) // even: 2->7, 3->11, 6->8, 7->12, 10->9, 11->13
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  return (((7*odd_slot) + 4*(vrb&3) + (vrb>>2) +13 )%14) + 14*(vrb/14);
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    }
    if (vrb==12)
      return (3+(7*odd_slot)) % 14;
    if (vrb==13)
      return (10+(7*odd_slot)) % 14;
    return 14;
    break;
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  case 25:
    return (((12*odd_slot) + 6*(vrb&3) + (vrb>>2))%24) + 24*(vrb/24);
    break;
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  case 50: // P=3
    if (Ngap==0) {
      // Nrow=12,Nnull=2,NVRBDL=46,Ngap1= 27
      if (vrb>=23)
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  offset=4;
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      else
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  offset=0;
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      if (vrb<44) {
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  if ((vrb&3)>=2)
    return offset+((23*odd_slot) + 12*(vrb&3) + (vrb>>2) + 45)%46;
  else
    return offset+((23*odd_slot) + 12*(vrb&3) + (vrb>>2))%46;
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      }
      if (vrb==44)  // even: 44->11, odd: 45->34
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  return offset+((23*odd_slot) + 22-12+1);
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      if (vrb==45)  // even: 45->10, odd: 45->33
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  return offset+((23*odd_slot) + 22+12);
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      if (vrb==46)
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  return offset+46+((23*odd_slot) + 23-12+1) % 46;
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      if (vrb==47)
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  return offset+46+((23*odd_slot) + 23+12) % 46;
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      if (vrb==48)
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  return offset+46+((23*odd_slot) + 23-12+1) % 46;
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      if (vrb==49)
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  return offset+46+((23*odd_slot) + 23+12) % 46;
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    }
    else {
      // Nrow=6,Nnull=6,NVRBDL=18,Ngap1= 27
      if (vrb>=9)
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  offset=18;
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      else
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  offset=0;
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      if (vrb<12) {
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  if ((vrb&3)>=2)
    return offset+((9*odd_slot) + 6*(vrb&3) + (vrb>>2) + 17)%18;
  else
    return offset+((9*odd_slot) + 6*(vrb&3) + (vrb>>2))%18;
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      }
      else {
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  return offset+((9*odd_slot) + 12*(vrb&1)+(vrb>>1) )%18 + 18*(vrb/18);
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      }
    }
    break;
  case 75:
    // Ngap1 = 32, NVRBRL=64, P=4, Nrow= 16, Nnull=0
    if (Ngap ==0) {
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      return ((32*odd_slot) + 16*(vrb&3) + (vrb>>2))%64 + (vrb/64);
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    } else {
      // Ngap2 = 16, NVRBDL=32, Nrow=8, Nnull=0
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      return ((16*odd_slot) + 8*(vrb&3) + (vrb>>2))%32 + (vrb/32);
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    }
    break;
  case 100:
    // Ngap1 = 48, NVRBDL=96, Nrow=24, Nnull=0
    if (Ngap ==0) {
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      return ((48*odd_slot) + 24*(vrb&3) + (vrb>>2))%96 + (vrb/96);
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    } else {
      // Ngap2 = 16, NVRBDL=32, Nrow=8, Nnull=0
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      return ((16*odd_slot) + 8*(vrb&3) + (vrb>>2))%32 + (vrb/32);
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    }
    break;
  default:
    LOG_E(PHY,"Unknown N_RB_DL %d\n",N_RB_DL);
    return 0;
  }
  return 0;
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}

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void generate_RIV_tables()
{
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  // 6RBs localized RIV
  uint8_t Lcrbs,RBstart;
  uint16_t RIV;
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  uint32_t alloc0,allocdist0_0_even,allocdist0_0_odd,allocdist0_1_even,allocdist0_1_odd;
  uint32_t alloc1,allocdist1_0_even,allocdist1_0_odd,allocdist1_1_even,allocdist1_1_odd;
  uint32_t alloc2,allocdist2_0_even,allocdist2_0_odd,allocdist2_1_even,allocdist2_1_odd;
  uint32_t alloc3,allocdist3_0_even,allocdist3_0_odd,allocdist3_1_even,allocdist3_1_odd;
  uint32_t nVRB,nVRB_even_dist,nVRB_odd_dist;
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  for (RBstart=0; RBstart<6; RBstart++) {
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    alloc0 = 0;
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    allocdist0_0_even = 0;
    allocdist0_0_odd  = 0;
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    for (Lcrbs=1; Lcrbs<=(6-RBstart); Lcrbs++) {
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      //printf("RBstart %d, len %d --> ",RBstart,Lcrbs);
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      nVRB             = Lcrbs-1+RBstart;
      alloc0          |= (1<<nVRB);
      allocdist0_0_even |= (1<<get_prb(6,0,nVRB,0));
      allocdist0_0_odd  |= (1<<get_prb(6,1,nVRB,0));
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      RIV=computeRIV(6,RBstart,Lcrbs);
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      if (RIV>RIV_max6)
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        RIV_max6 = RIV;
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      //      printf("RIV %d (%d) : first_rb %d NBRB %d\n",RIV,localRIV2alloc_LUT25[RIV],RBstart,Lcrbs);
      localRIV2alloc_LUT6[RIV] = alloc0;
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      distRIV2alloc_even_LUT6[RIV]  = allocdist0_0_even;
      distRIV2alloc_odd_LUT6[RIV]  = allocdist0_0_odd;
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      RIV2nb_rb_LUT6[RIV]      = Lcrbs;
      RIV2first_rb_LUT6[RIV]   = RBstart;
    }
  }


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  for (RBstart=0; RBstart<25; RBstart++) {
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    alloc0 = 0;
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    allocdist0_0_even = 0;
    allocdist0_0_odd  = 0;
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    for (Lcrbs=1; Lcrbs<=(25-RBstart); Lcrbs++) {
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      nVRB = Lcrbs-1+RBstart;
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      //printf("RBstart %d, len %d --> ",RBstart,Lcrbs);
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      alloc0     |= (1<<nVRB);
      allocdist0_0_even |= (1<<get_prb(25,0,nVRB,0));
      allocdist0_0_odd  |= (1<<get_prb(25,1,nVRB,0));
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      //printf("alloc 0 %x, allocdist0_even %x, allocdist0_odd %x\n",alloc0,allocdist0_0_even,allocdist0_0_odd);
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      RIV=computeRIV(25,RBstart,Lcrbs);
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      if (RIV>RIV_max25)
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        RIV_max25 = RIV;;
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      localRIV2alloc_LUT25[RIV]      = alloc0;
      distRIV2alloc_even_LUT25[RIV]  = allocdist0_0_even;
      distRIV2alloc_odd_LUT25[RIV]   = allocdist0_0_odd;
      RIV2nb_rb_LUT25[RIV]           = Lcrbs;
      RIV2first_rb_LUT25[RIV]        = RBstart;
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    }
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  }


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  for (RBstart=0; RBstart<50; RBstart++) {
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    alloc0 = 0;
    alloc1 = 0;
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    allocdist0_0_even=0;
    allocdist1_0_even=0;
    allocdist0_0_odd=0;
    allocdist1_0_odd=0;
    allocdist0_1_even=0;
    allocdist1_1_even=0;
    allocdist0_1_odd=0;
    allocdist1_1_odd=0;
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    for (Lcrbs=1; Lcrbs<=(50-RBstart); Lcrbs++) {
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      nVRB = Lcrbs-1+RBstart;


      if (nVRB<32)
        alloc0 |= (1<<nVRB);
      else
        alloc1 |= (1<<(nVRB-32));

      // Distributed Gap1, even slot
      nVRB_even_dist = get_prb(50,0,nVRB,0);
      if (nVRB_even_dist<32)
        allocdist0_0_even |= (1<<nVRB_even_dist);
      else
        allocdist1_0_even |= (1<<(nVRB_even_dist-32));

      // Distributed Gap1, odd slot
      nVRB_odd_dist = get_prb(50,1,nVRB,0);
      if (nVRB_odd_dist<32)
        allocdist0_0_odd |= (1<<nVRB_odd_dist);
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      else
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        allocdist1_0_odd |= (1<<(nVRB_odd_dist-32));
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      // Distributed Gap2, even slot
      nVRB_even_dist = get_prb(50,0,nVRB,1);
      if (nVRB_even_dist<32)
        allocdist0_1_even |= (1<<nVRB_even_dist);
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      else
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        allocdist1_1_even |= (1<<(nVRB_even_dist-32));

      // Distributed Gap2, odd slot
      nVRB_odd_dist = get_prb(50,1,nVRB,1);
      if (nVRB_odd_dist<32)
        allocdist0_1_odd |= (1<<nVRB_odd_dist);
      else
        allocdist1_1_odd |= (1<<(nVRB_odd_dist-32));
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      RIV=computeRIV(50,RBstart,Lcrbs);
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      if (RIV>RIV_max50)
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        RIV_max50 = RIV;
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      //      printf("RIV %d : first_rb %d NBRB %d\n",RIV,RBstart,Lcrbs);
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      localRIV2alloc_LUT50_0[RIV]      = alloc0;
      localRIV2alloc_LUT50_1[RIV]      = alloc1;
      distRIV2alloc_gap0_even_LUT50_0[RIV]  = allocdist0_0_even;
      distRIV2alloc_gap0_even_LUT50_1[RIV]  = allocdist1_0_even;
      distRIV2alloc_gap0_odd_LUT50_0[RIV]   = allocdist0_0_odd;
      distRIV2alloc_gap0_odd_LUT50_1[RIV]   = allocdist1_0_odd;
      distRIV2alloc_gap1_even_LUT50_0[RIV]  = allocdist0_1_even;
      distRIV2alloc_gap1_even_LUT50_1[RIV]  = allocdist1_1_even;
      distRIV2alloc_gap1_odd_LUT50_0[RIV]   = allocdist0_1_odd;
      distRIV2alloc_gap1_odd_LUT50_1[RIV]   = allocdist1_1_odd;
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      RIV2nb_rb_LUT50[RIV]        = Lcrbs;
      RIV2first_rb_LUT50[RIV]     = RBstart;
    }
  }


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  for (RBstart=0; RBstart<100; RBstart++) {
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    alloc0 = 0;
    alloc1 = 0;
    alloc2 = 0;
    alloc3 = 0;
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    allocdist0_0_even=0;
    allocdist1_0_even=0;
    allocdist2_0_even=0;
    allocdist3_0_even=0;
    allocdist0_0_odd=0;
    allocdist1_0_odd=0;
    allocdist2_0_odd=0;
    allocdist3_0_odd=0;
    allocdist0_1_even=0;
    allocdist1_1_even=0;
    allocdist2_1_even=0;
    allocdist3_1_even=0;
    allocdist0_1_odd=0;
    allocdist1_1_odd=0;
    allocdist2_1_odd=0;
    allocdist3_1_odd=0;
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    for (Lcrbs=1; Lcrbs<=(100-RBstart); Lcrbs++) {
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      nVRB = Lcrbs-1+RBstart;

      if (nVRB<32)
        alloc0 |= (1<<nVRB);
      else if (nVRB<64)
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        alloc1 |= (1<<(nVRB-32));
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      else if (nVRB<96)
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        alloc2 |= (1<<(nVRB-64));
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      else
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        alloc3 |= (1<<(nVRB-96));
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      // Distributed Gap1, even slot
      nVRB_even_dist = get_prb(100,0,nVRB,0);

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//      if ((RBstart==0) && (Lcrbs<=8))
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//  printf("nVRB %d => nVRB_even_dist %d\n",nVRB,nVRB_even_dist);
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      if (nVRB_even_dist<32)
        allocdist0_0_even |= (1<<nVRB_even_dist);
      else if (nVRB_even_dist<64)
        allocdist1_0_even |= (1<<(nVRB_even_dist-32));
      else if (nVRB_even_dist<96)
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  allocdist2_0_even |= (1<<(nVRB_even_dist-64));
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      else
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  allocdist3_0_even |= (1<<(nVRB_even_dist-96));
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/*      if ((RBstart==0) && (Lcrbs<=8))
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  printf("rballoc =>(%08x.%08x.%08x.%08x)\n",
         allocdist0_0_even,
         allocdist1_0_even,
         allocdist2_0_even,
         allocdist3_0_even
         );
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      // Distributed Gap1, odd slot
      nVRB_odd_dist = get_prb(100,1,nVRB,0);
      if (nVRB_odd_dist<32)
        allocdist0_0_odd |= (1<<nVRB_odd_dist);
      else if (nVRB_odd_dist<64)
        allocdist1_0_odd |= (1<<(nVRB_odd_dist-32));
      else if (nVRB_odd_dist<96)
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  allocdist2_0_odd |= (1<<(nVRB_odd_dist-64));
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      else
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  allocdist3_0_odd |= (1<<(nVRB_odd_dist-96));
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      // Distributed Gap2, even slot
      nVRB_even_dist = get_prb(100,0,nVRB,1);
      if (nVRB_even_dist<32)
        allocdist0_1_even |= (1<<nVRB_even_dist);
      else if (nVRB_even_dist<64)
        allocdist1_1_even |= (1<<(nVRB_even_dist-32));
      else if (nVRB_even_dist<96)
  allocdist2_1_even |= (1<<(nVRB_even_dist-64));
      else
  allocdist3_1_even |= (1<<(nVRB_even_dist-96));


      // Distributed Gap2, odd slot
      nVRB_odd_dist = get_prb(100,1,nVRB,1);
      if (nVRB_odd_dist<32)
        allocdist0_1_odd |= (1<<nVRB_odd_dist);
      else if (nVRB_odd_dist<64)
        allocdist1_1_odd |= (1<<(nVRB_odd_dist-32));
      else if (nVRB_odd_dist<96)
  allocdist2_1_odd |= (1<<(nVRB_odd_dist-64));
      else
  allocdist3_1_odd |= (1<<(nVRB_odd_dist-96));


      RIV=computeRIV(100,RBstart,Lcrbs);

      if (RIV>RIV_max100)
        RIV_max100 = RIV;

      //      printf("RIV %d : first_rb %d NBRB %d\n",RIV,RBstart,Lcrbs);
      localRIV2alloc_LUT100_0[RIV] = alloc0;
      localRIV2alloc_LUT100_1[RIV] = alloc1;
      localRIV2alloc_LUT100_2[RIV] = alloc2;
      localRIV2alloc_LUT100_3[RIV] = alloc3;
      distRIV2alloc_gap0_even_LUT100_0[RIV]  = allocdist0_0_even;
      distRIV2alloc_gap0_even_LUT100_1[RIV]  = allocdist1_0_even;
      distRIV2alloc_gap0_even_LUT100_2[RIV]  = allocdist2_0_even;
      distRIV2alloc_gap0_even_LUT100_3[RIV]  = allocdist3_0_even;
      distRIV2alloc_gap0_odd_LUT100_0[RIV]   = allocdist0_0_odd;
      distRIV2alloc_gap0_odd_LUT100_1[RIV]   = allocdist1_0_odd;
      distRIV2alloc_gap0_odd_LUT100_2[RIV]   = allocdist2_0_odd;
      distRIV2alloc_gap0_odd_LUT100_3[RIV]   = allocdist3_0_odd;
      distRIV2alloc_gap1_even_LUT100_0[RIV]  = allocdist0_1_even;
      distRIV2alloc_gap1_even_LUT100_1[RIV]  = allocdist1_1_even;
      distRIV2alloc_gap1_even_LUT100_2[RIV]  = allocdist2_1_even;
      distRIV2alloc_gap1_even_LUT100_3[RIV]  = allocdist3_1_even;
      distRIV2alloc_gap1_odd_LUT100_0[RIV]   = allocdist0_1_odd;
      distRIV2alloc_gap1_odd_LUT100_1[RIV]   = allocdist1_1_odd;
      distRIV2alloc_gap1_odd_LUT100_2[RIV]   = allocdist2_1_odd;
      distRIV2alloc_gap1_odd_LUT100_3[RIV]   = allocdist3_1_odd;

      RIV2nb_rb_LUT100[RIV]      = Lcrbs;
      RIV2first_rb_LUT100[RIV]   = RBstart;
    }
  }
}

// Ngap = 3, N_VRB_DL=6, P=1, N_row=2, N_null=4*2-6=2
// permutation for even slots :
//    n_PRB'(0,2,4) = (0,1,2), n_PRB'(1,3,5) = (4,5,6)
//    n_PRB''(0,1,2,3) = (0,2,4,6)
//    => n_tilde_PRB(5) = (4)
//       n_tilde_PRB(4) = (1)
//       n_tilde_PRB(2,3) = (3,5)
//       n_tilde_PRB(0,1) = (0,2)


int8_t find_dlsch(uint16_t rnti, PHY_VARS_eNB *eNB,find_type_t type)
{
  uint8_t i;
  int8_t first_free_index=-1;

  AssertFatal(eNB!=NULL,"eNB is null\n");
  for (i=0; i<NUMBER_OF_UE_MAX; i++) {
    AssertFatal(eNB->dlsch[i]!=NULL,"eNB->dlsch[%d] is null\n",i);
    AssertFatal(eNB->dlsch[i]!=NULL,"eNB->dlsch[%d][0] is null\n",i);
    LOG_D(PHY,"searching for rnti %x : UE index %d=> harq_mask %x, rnti %x, first_free_index %d\n",
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          rnti,i,eNB->dlsch[i][0]->harq_mask,eNB->dlsch[i][0]->rnti,first_free_index);
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    if ((eNB->dlsch[i][0]->harq_mask >0) &&
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        (eNB->dlsch[i][0]->rnti==rnti))       return i;
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    else if ((eNB->dlsch[i][0]->harq_mask == 0) && (first_free_index==-1)) first_free_index=i;
  }
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  if (type == SEARCH_EXIST) return -1;
  if (first_free_index != -1)
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    eNB->dlsch[first_free_index][0]->rnti = 0;
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  return first_free_index;
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}

int8_t find_ulsch(uint16_t rnti, PHY_VARS_eNB *eNB,find_type_t type)
{
  uint8_t i;
  int8_t first_free_index=-1;

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  AssertFatal(eNB!=NULL,"eNB is null\n");
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  for (i=0; i<NUMBER_OF_UE_MAX; i++) {
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    AssertFatal(eNB->ulsch[i]!=NULL,"eNB->ulsch[%d] is null\n",i);
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    if ((eNB->ulsch[i]->harq_mask >0) &&
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        (eNB->ulsch[i]->rnti==rnti))       return i;
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    else if ((eNB->ulsch[i]->harq_mask == 0) && (first_free_index==-1)) first_free_index=i;
  }
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  if (type == SEARCH_EXIST) return -1;
  if (first_free_index != -1)
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    eNB->ulsch[first_free_index]->rnti = 0;
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  return first_free_index;
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}


uint32_t get_rballoc(vrb_t vrb_type,uint16_t rb_alloc_dci)
{

  return(localRIV2alloc_LUT25[rb_alloc_dci]);

}

/*
uint8_t get_transmission_mode(module_id_t Mod_id, uint8_t CC_id, rnti_t rnti)
{
  unsigned char UE_id;

  // find the UE_index corresponding to rnti
  UE_id = find_ue(rnti,RC.eNB[Mod_id][CC_id]);
  DevAssert( UE_id != (unsigned char)-1 );

  return(RC.eNB[Mod_id][CC_id]->transmission_mode[UE_id]);
}
*/

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void fill_dci_and_dlsch(PHY_VARS_eNB *eNB,eNB_rxtx_proc_t *proc,DCI_ALLOC_t *dci_alloc,nfapi_dl_config_dci_dl_pdu *pdu) {
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  LTE_DL_FRAME_PARMS *fp = &eNB->frame_parms;

  uint8_t *dci_pdu = &dci_alloc->dci_pdu[0];
  nfapi_dl_config_dci_dl_pdu_rel8_t *rel8 = &pdu->dci_dl_pdu_rel8;
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  LTE_eNB_DLSCH_t *dlsch0=NULL,*dlsch1=NULL;
  LTE_DL_eNB_HARQ_t *dlsch0_harq=NULL,*dlsch1_harq=NULL;
  int beamforming_mode = 0;
  int UE_id=-1;
  int subframe = proc->subframe_tx;
  int NPRB;
  int TB0_active;
  int TB1_active;
  uint16_t DL_pmi_single=0; // This should be taken from DLSCH parameters for PUSCH precoding
  uint8_t I_mcs = 0;
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  dci_alloc->firstCCE = rel8->cce_idx;
  dci_alloc->L        = rel8->aggregation_level;
  dci_alloc->rnti     = rel8->rnti;
  dci_alloc->harq_pid = rel8->harq_process;
  dci_alloc->ra_flag  = 0;

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  LOG_D(PHY,"NFAPI: DCI format %d, nCCE %d, L %d, rnti %x,harq_pid %d\n",
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	rel8->dci_format,rel8->cce_idx,rel8->aggregation_level,rel8->rnti,rel8->harq_process);
  if ((rel8->rnti_type == 2 ) && (rel8->rnti != SI_RNTI) && (rel8->rnti != P_RNTI)) dci_alloc->ra_flag = 1;

  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);
  dlsch0 = eNB->dlsch[UE_id][0];
  dlsch1 = eNB->dlsch[UE_id][1];
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  beamforming_mode                          = eNB->transmission_mode[(uint8_t)UE_id]<7?0:eNB->transmission_mode[(uint8_t)UE_id];
  dlsch0_harq                               = dlsch0->harq_processes[rel8->harq_process];
  dlsch0_harq->codeword                     = 0;
  dlsch1_harq                               = dlsch1->harq_processes[rel8->harq_process];
  dlsch1_harq->codeword                     = 1;
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  dlsch0->subframe_tx[subframe]             = 1;
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  if (dlsch0->rnti != rel8->rnti) { // if rnti of dlsch is not the same as in the config, this is a new entry
    dlsch0_harq->round=0;
    dlsch0->harq_mask=0;
  }
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  if ((dlsch0->harq_mask & (1<<rel8->harq_process)) > 0 ) {
    if (rel8->new_data_indicator_1 != dlsch0_harq->ndi)
      dlsch0_harq->round=0;
  }
  else  { // process is inactive, so activate and set round to 0
    dlsch0->harq_mask                         |= (1<<rel8->harq_process);
    dlsch0_harq->round=0;
  }
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  dlsch0_harq->ndi = rel8->new_data_indicator_1;

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  dlsch0->active        = 1;
  if (rel8->rnti_type == 2)
      dlsch0_harq->round    = 0;
LOG_D(PHY,"NFAPI: harq_pid %d harq_mask %x, round %d ndi (%d,%d) \n",rel8->harq_process,dlsch0->harq_mask,dlsch0_harq->round,
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	dlsch0_harq->ndi,rel8->new_data_indicator_1);

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  switch (rel8->dci_format) {

  case NFAPI_DL_DCI_FORMAT_1A:
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      AssertFatal(rel8->resource_block_coding < 8192, "Frame %d, Subframe %d: rel8->resource_block_coding (%p) %u >= 8192 (rnti %x, rnti_type %d, format %d, harq_id %d\n",
                proc->frame_tx,subframe,
                &rel8->resource_block_coding,rel8->resource_block_coding,rel8->rnti,rel8->rnti_type,rel8->dci_format,rel8->harq_process);
  

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    dci_alloc->format     = format1A;

    switch (fp->N_RB_DL) {
    case 6:
      if (fp->frame_type == TDD) {
	dci_alloc->dci_length                         = sizeof_DCI1A_1_5MHz_TDD_1_6_t; 
        ((DCI1A_1_5MHz_TDD_1_6_t *)dci_pdu)->type     = 1;
        ((DCI1A_1_5MHz_TDD_1_6_t *)dci_pdu)->vrb_type = rel8->virtual_resource_block_assignment_flag;
        ((DCI1A_1_5MHz_TDD_1_6_t *)dci_pdu)->mcs      = rel8->mcs_1;
        ((DCI1A_1_5MHz_TDD_1_6_t *)dci_pdu)->ndi      = rel8->new_data_indicator_1;
        ((DCI1A_1_5MHz_TDD_1_6_t *)dci_pdu)->rballoc  = rel8->resource_block_coding;
        ((DCI1A_1_5MHz_TDD_1_6_t *)dci_pdu)->rv       = rel8->redundancy_version_1;
        ((DCI1A_1_5MHz_TDD_1_6_t *)dci_pdu)->TPC      = rel8->tpc;
        ((DCI1A_1_5MHz_TDD_1_6_t *)dci_pdu)->harq_pid = rel8->harq_process;
        ((DCI1A_1_5MHz_TDD_1_6_t *)dci_pdu)->dai      = rel8->downlink_assignment_index;
	
      } else {
	dci_alloc->dci_length                         = sizeof_DCI1A_1_5MHz_FDD_t; 
	((DCI1A_1_5MHz_FDD_t *)dci_pdu)->type         = 1;
        ((DCI1A_1_5MHz_FDD_t *)dci_pdu)->vrb_type     = rel8->virtual_resource_block_assignment_flag;
        ((DCI1A_1_5MHz_FDD_t *)dci_pdu)->mcs          = rel8->mcs_1;
        ((DCI1A_1_5MHz_FDD_t *)dci_pdu)->ndi          = rel8->new_data_indicator_1;
        ((DCI1A_1_5MHz_FDD_t *)dci_pdu)->rballoc      = rel8->resource_block_coding;
        ((DCI1A_1_5MHz_FDD_t *)dci_pdu)->rv           = rel8->redundancy_version_1;
        ((DCI1A_1_5MHz_FDD_t *)dci_pdu)->TPC          = rel8->tpc;
        ((DCI1A_1_5MHz_FDD_t *)dci_pdu)->harq_pid     = rel8->harq_process;
        //      printf("FDD 1A: mcs %d, rballoc %x,rv %d, NPRB %d\n",mcs,rballoc,rv,NPRB);
      }
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      // check if PDCCH order
      if (rel8->resource_block_coding == 63) { 
          dlsch0->active        = 0;
          return;
      }
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      AssertFatal(rel8->virtual_resource_block_assignment_flag==LOCALIZED,"Distributed RB allocation not done yet\n");
      dlsch0_harq->rb_alloc[0]    = localRIV2alloc_LUT6[rel8->resource_block_coding];
      dlsch0_harq->vrb_type           =  rel8->virtual_resource_block_assignment_flag;
      dlsch0_harq->nb_rb          = RIV2nb_rb_LUT6[rel8->resource_block_coding];//NPRB;
      break;
    case 25:
      if (fp->frame_type == TDD) {
	dci_alloc->dci_length                         = sizeof_DCI1A_5MHz_TDD_1_6_t; 
        ((DCI1A_5MHz_TDD_1_6_t *)dci_pdu)->type       = 1;
        ((DCI1A_5MHz_TDD_1_6_t *)dci_pdu)->vrb_type   = rel8->virtual_resource_block_assignment_flag;
        ((DCI1A_5MHz_TDD_1_6_t *)dci_pdu)->mcs        = rel8->mcs_1;
        ((DCI1A_5MHz_TDD_1_6_t *)dci_pdu)->ndi        = rel8->new_data_indicator_1;
        ((DCI1A_5MHz_TDD_1_6_t *)dci_pdu)->rballoc    = rel8->resource_block_coding;
        ((DCI1A_5MHz_TDD_1_6_t *)dci_pdu)->rv         = rel8->redundancy_version_1;
        ((DCI1A_5MHz_TDD_1_6_t *)dci_pdu)->TPC        = rel8->tpc;
        ((DCI1A_5MHz_TDD_1_6_t *)dci_pdu)->harq_pid   = rel8->harq_process;
        ((DCI1A_5MHz_TDD_1_6_t *)dci_pdu)->dai      = rel8->downlink_assignment_index; 	
         //        printf("TDD 1A: mcs %d, rballoc %x,rv %d, NPRB %d\n",mcs,rballoc,rv,NPRB);
      } else {
	dci_alloc->dci_length                         = sizeof_DCI1A_5MHz_FDD_t; 
	((DCI1A_5MHz_FDD_t *)dci_pdu)->type           = 1;
        ((DCI1A_5MHz_FDD_t *)dci_pdu)->vrb_type       = rel8->virtual_resource_block_assignment_flag;
        ((DCI1A_5MHz_FDD_t *)dci_pdu)->mcs            = rel8->mcs_1;
        ((DCI1A_5MHz_FDD_t *)dci_pdu)->ndi            = rel8->new_data_indicator_1;
        ((DCI1A_5MHz_FDD_t *)dci_pdu)->rballoc        = rel8->resource_block_coding;
        ((DCI1A_5MHz_FDD_t *)dci_pdu)->rv             = rel8->redundancy_version_1;
        ((DCI1A_5MHz_FDD_t *)dci_pdu)->TPC            = rel8->tpc;
        ((DCI1A_5MHz_FDD_t *)dci_pdu)->harq_pid       = rel8->harq_process;
        //      printf("FDD 1A: mcs %d, rballoc %x,rv %d, NPRB %d\n",mcs,rballoc,rv,NPRB);
      }
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      // check if PDCCH order
	  if (rel8->resource_block_coding == 511)  {
          dlsch0->active        = 0;
          return;
      }
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      AssertFatal(rel8->virtual_resource_block_assignment_flag==LOCALIZED,"Distributed RB allocation not done yet\n");
      dlsch0_harq->rb_alloc[0]    = localRIV2alloc_LUT25[rel8->resource_block_coding];
      dlsch0_harq->vrb_type           =  rel8->virtual_resource_block_assignment_flag;
      dlsch0_harq->nb_rb          = RIV2nb_rb_LUT25[rel8->resource_block_coding];//NPRB;
      break;
    case 50:
      if (fp->frame_type == TDD) {
	dci_alloc->dci_length                         = sizeof_DCI1A_10MHz_TDD_1_6_t; 
        ((DCI1A_10MHz_TDD_1_6_t *)dci_pdu)->type      = 1;
        ((DCI1A_10MHz_TDD_1_6_t *)dci_pdu)->vrb_type  = rel8->virtual_resource_block_assignment_flag;
        ((DCI1A_10MHz_TDD_1_6_t *)dci_pdu)->mcs       = rel8->mcs_1;
        ((DCI1A_10MHz_TDD_1_6_t *)dci_pdu)->ndi       = rel8->new_data_indicator_1;
        ((DCI1A_10MHz_TDD_1_6_t *)dci_pdu)->rballoc   = rel8->resource_block_coding;
        ((DCI1A_10MHz_TDD_1_6_t *)dci_pdu)->rv        = rel8->redundancy_version_1;
        ((DCI1A_10MHz_TDD_1_6_t *)dci_pdu)->TPC       = rel8->tpc;
        ((DCI1A_10MHz_TDD_1_6_t *)dci_pdu)->harq_pid  = rel8->harq_process;
        ((DCI1A_10MHz_TDD_1_6_t *)dci_pdu)->dai       = rel8->downlink_assignment_index;	
        //        printf("TDD 1A: mcs %d, rballoc %x,rv %d, NPRB %d\n",mcs,rballoc,rv,NPRB);
      } else {
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	dci_alloc->dci_length                         = sizeof_DCI1A_10MHz_FDD_t; 
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	((DCI1A_10MHz_FDD_t *)dci_pdu)->type          = 1;
        ((DCI1A_10MHz_FDD_t *)dci_pdu)->vrb_type      = rel8->virtual_resource_block_assignment_flag;
        ((DCI1A_10MHz_FDD_t *)dci_pdu)->mcs           = rel8->mcs_1;
        ((DCI1A_10MHz_FDD_t *)dci_pdu)->ndi           = rel8->new_data_indicator_1;
        ((DCI1A_10MHz_FDD_t *)dci_pdu)->rballoc       = rel8->resource_block_coding;
        ((DCI1A_10MHz_FDD_t *)dci_pdu)->rv            = rel8->redundancy_version_1;
        ((DCI1A_10MHz_FDD_t *)dci_pdu)->TPC           = rel8->tpc;
        ((DCI1A_10MHz_FDD_t *)dci_pdu)->harq_pid      = rel8->harq_process;
	//      printf("FDD 1A: mcs %d, rballoc %x,rv %d, NPRB %d\n",mcs,rballoc,rv,NPRB);
      }
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      // check if PDCCH order
      if (rel8->resource_block_coding == 2047) {
          dlsch0->active        = 0;
          return;
      }
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      AssertFatal(rel8->virtual_resource_block_assignment_flag==LOCALIZED,"Distributed RB allocation not done yet\n");
      dlsch0_harq->rb_alloc[0]     = localRIV2alloc_LUT50_0[rel8->resource_block_coding];
      dlsch0_harq->rb_alloc[1]     = localRIV2alloc_LUT50_1[rel8->resource_block_coding];
      dlsch0_harq->vrb_type           =  rel8->virtual_resource_block_assignment_flag;
      dlsch0_harq->nb_rb              = RIV2nb_rb_LUT50[rel8->resource_block_coding];//NPRB;
      break;
    case 100:
      if (fp->frame_type == TDD) {
	dci_alloc->dci_length                         = sizeof_DCI1A_20MHz_TDD_1_6_t; 
        ((DCI1A_20MHz_TDD_1_6_t *)dci_pdu)->type      = 1;
        ((DCI1A_20MHz_TDD_1_6_t *)dci_pdu)->vrb_type  = rel8->virtual_resource_block_assignment_flag;
        ((DCI1A_20MHz_TDD_1_6_t *)dci_pdu)->mcs       = rel8->mcs_1;
        ((DCI1A_20MHz_TDD_1_6_t *)dci_pdu)->ndi       = rel8->new_data_indicator_1;
        ((DCI1A_20MHz_TDD_1_6_t *)dci_pdu)->rballoc   = rel8->resource_block_coding;
        ((DCI1A_20MHz_TDD_1_6_t *)dci_pdu)->rv        = rel8->redundancy_version_1;
        ((DCI1A_20MHz_TDD_1_6_t *)dci_pdu)->TPC       = rel8->tpc;
        ((DCI1A_20MHz_TDD_1_6_t *)dci_pdu)->harq_pid  = rel8->harq_process;
        ((DCI1A_20MHz_TDD_1_6_t *)dci_pdu)->dai       = rel8->downlink_assignment_index;	
        //        printf("TDD 1A: mcs %d, rballoc %x,rv %d, NPRB %d\n",mcs,rballoc,rv,NPRB);
      } else {
	dci_alloc->dci_length                         = sizeof_DCI1A_20MHz_FDD_t; 
	((DCI1A_20MHz_FDD_t *)dci_pdu)->type          = 1;
        ((DCI1A_20MHz_FDD_t *)dci_pdu)->vrb_type      = rel8->virtual_resource_block_assignment_flag;
        ((DCI1A_20MHz_FDD_t *)dci_pdu)->mcs           = rel8->mcs_1;
        ((DCI1A_20MHz_FDD_t *)dci_pdu)->ndi           = rel8->new_data_indicator_1;
        ((DCI1A_20MHz_FDD_t *)dci_pdu)->rballoc       = rel8->resource_block_coding;
        ((DCI1A_20MHz_FDD_t *)dci_pdu)->rv            = rel8->redundancy_version_1;
        ((DCI1A_20MHz_FDD_t *)dci_pdu)->TPC           = rel8->tpc;
        ((DCI1A_20MHz_FDD_t *)dci_pdu)->harq_pid      = rel8->harq_process;
	//      printf("FDD 1A: mcs %d, rballoc %x,rv %d, NPRB %d\n",mcs,rballoc,rv,NPRB);
      }
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      // check if PDCCH order
      if (rel8->resource_block_coding == 8191) {
          dlsch0->active        = 0;
          return;
      }
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      AssertFatal(rel8->virtual_resource_block_assignment_flag==LOCALIZED,"Distributed RB allocation not done yet\n");
      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_harq->vrb_type         =  rel8->virtual_resource_block_assignment_flag;
      dlsch0_harq->nb_rb            = RIV2nb_rb_LUT100[rel8->resource_block_coding];//NPRB;
      break;
    }

    if (rel8->rnti_type == 2 ) {
      // see 36-212 V8.6.0 p. 45
      NPRB      = (rel8->tpc&1)+2;
      // 36-213 sec.7.1.7.2 p.26
      I_mcs     = rel8->mcs_1;
    }
    else {
      NPRB      = dlsch0_harq->nb_rb;
      I_mcs     = get_I_TBS(rel8->mcs_1);
    }
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    AssertFatal(NPRB>0,"DCI 1A: NPRB = 0 (rnti %x, rnti type %d, tpc %d, round %d, resource_block_coding %d)\n",rel8->rnti,rel8->rnti_type,rel8->tpc,dlsch0_harq->round,rel8->resource_block_coding);
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    dlsch0_harq->rvidx         = rel8->redundancy_version_1;
    dlsch0_harq->Nl            = 1;
    dlsch0_harq->mimo_mode     = (fp->nb_antenna_ports_eNB == 1) ? SISO : ALAMOUTI;
    dlsch0_harq->dl_power_off  = 1;
    
    

    dlsch0_harq->mcs             = rel8->mcs_1;
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    dlsch0_harq->Qm              = 2;
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    dlsch0_harq->TBS             = TBStable[I_mcs][NPRB-1];
    dlsch0->harq_ids[subframe]   = rel8->harq_process;
    dlsch0->active               = 1;
    dlsch0->rnti                 = rel8->rnti;
    dlsch0->harq_ids[subframe]   = rel8->harq_process;
    if (dlsch0_harq->round == 0)
      dlsch0_harq->status = ACTIVE;

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    if (rel8->rnti_type == 1) LOG_I(PHY,"DCI 1A: round %d, mcs %d, rballoc %x,rv %d, rnti %x\n",dlsch0_harq->round,rel8->mcs_1,rel8->resource_block_coding,rel8->redundancy_version_1,rel8->rnti);
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    break;
  case NFAPI_DL_DCI_FORMAT_1:

    dci_alloc->format           = format1;
    dlsch0->active              = 1;
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knopp's avatar
knopp committed
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    LOG_D(PHY,"Frame %d, Subframe %d: Programming DLSCH for Format 1 DCI, harq_pid %d\n",proc->frame_tx,subframe,rel8->harq_process);
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    switch (fp->N_RB_DL) {
    case 6:
      if (fp->frame_type == TDD) {
	dci_alloc->dci_length                     = sizeof_DCI1_1_5MHz_TDD_t; 
        ((DCI1_1_5MHz_TDD_t *)dci_pdu)->rah       = rel8->resource_allocation_type;
        ((DCI1_1_5MHz_TDD_t *)dci_pdu)->mcs       = rel8->mcs_1;
        ((DCI1_1_5MHz_TDD_t *)dci_pdu)->ndi       = rel8->new_data_indicator_1;
        ((DCI1_1_5MHz_TDD_t *)dci_pdu)->rballoc   = rel8->resource_block_coding;
        ((DCI1_1_5MHz_TDD_t *)dci_pdu)->rv        = rel8->redundancy_version_1;
        ((DCI1_1_5MHz_TDD_t *)dci_pdu)->TPC       = rel8->tpc;
        ((DCI1_1_5MHz_TDD_t *)dci_pdu)->harq_pid  = rel8->harq_process;
        ((DCI1_1_5MHz_TDD_t *)dci_pdu)->dai       = rel8->downlink_assignment_index; 	
        //        printf("TDD 1: mcs %d, rballoc %x,rv %d, NPRB %d\n",mcs,rballoc,rv,NPRB);
      } else {
	dci_alloc->dci_length                         = sizeof_DCI1_1_5MHz_FDD_t; 
        ((DCI1_1_5MHz_FDD_t *)dci_pdu)->rah           = rel8->resource_allocation_type;
        ((DCI1_1_5MHz_FDD_t *)dci_pdu)->mcs           = rel8->mcs_1;
        ((DCI1_1_5MHz_FDD_t *)dci_pdu)->ndi       = rel8->new_data_indicator_1;
        ((DCI1_1_5MHz_FDD_t *)dci_pdu)->rballoc       = rel8->resource_block_coding;
        ((DCI1_1_5MHz_FDD_t *)dci_pdu)->rv            = rel8->redundancy_version_1;
        ((DCI1_1_5MHz_FDD_t *)dci_pdu)->TPC           = rel8->tpc;
        ((DCI1_1_5MHz_FDD_t *)dci_pdu)->harq_pid      = rel8->harq_process;
        //      printf("FDD 1: mcs %d, rballoc %x,rv %d, NPRB %d\n",mcs,rballoc,rv,NPRB);
      }
      break;
    case 25:
      if (fp->frame_type == TDD) {
	dci_alloc->dci_length                      = sizeof_DCI1_5MHz_TDD_t; 
        ((DCI1_5MHz_TDD_t *)dci_pdu)->rah      = rel8->resource_allocation_type;
        ((DCI1_5MHz_TDD_t *)dci_pdu)->mcs      = rel8->mcs_1;
        ((DCI1_5MHz_TDD_t *)dci_pdu)->ndi      = rel8->new_data_indicator_1;
        ((DCI1_5MHz_TDD_t *)dci_pdu)->rballoc  = rel8->resource_block_coding;
        ((DCI1_5MHz_TDD_t *)dci_pdu)->rv       = rel8->redundancy_version_1;
        ((DCI1_5MHz_TDD_t *)dci_pdu)->TPC      = rel8->tpc;
        ((DCI1_5MHz_TDD_t *)dci_pdu)->harq_pid = rel8->harq_process;
        ((DCI1_5MHz_TDD_t *)dci_pdu)->dai      = rel8->downlink_assignment_index;	
        //        printf("TDD 1: mcs %d, rballoc %x,rv %d, NPRB %d\n",mcs,rballoc,rv,NPRB);
      } else {
	dci_alloc->dci_length                  = sizeof_DCI1_5MHz_FDD_t; 
        ((DCI1_5MHz_FDD_t *)dci_pdu)->rah      = rel8->resource_allocation_type;
        ((DCI1_5MHz_FDD_t *)dci_pdu)->mcs      = rel8->mcs_1;
        ((DCI1_5MHz_FDD_t *)dci_pdu)->ndi      = rel8->new_data_indicator_1;
        ((DCI1_5MHz_FDD_t *)dci_pdu)->rballoc  = rel8->resource_block_coding;
        ((DCI1_5MHz_FDD_t *)dci_pdu)->rv       = rel8->redundancy_version_1;
        ((DCI1_5MHz_FDD_t *)dci_pdu)->TPC      = rel8->tpc;
        ((DCI1_5MHz_FDD_t *)dci_pdu)->harq_pid = rel8->harq_process;
        //      printf("FDD 1: mcs %d, rballoc %x,rv %d, NPRB %d\n",mcs,rballoc,rv,NPRB);
      }
      break;
    case 50:
      if (fp->frame_type == TDD) {
	dci_alloc->dci_length                       = sizeof_DCI1_10MHz_TDD_t; 
        ((DCI1_10MHz_TDD_t *)dci_pdu)->rah      = rel8->resource_allocation_type;
        ((DCI1_10MHz_TDD_t *)dci_pdu)->mcs      = rel8->mcs_1;
        ((DCI1_10MHz_TDD_t *)dci_pdu)->ndi      = rel8->new_data_indicator_1;
        ((DCI1_10MHz_TDD_t *)dci_pdu)->rballoc  = rel8->resource_block_coding;
        ((DCI1_10MHz_TDD_t *)dci_pdu)->rv       = rel8->redundancy_version_1;
        ((DCI1_10MHz_TDD_t *)dci_pdu)->TPC      = rel8->tpc;
        ((DCI1_10MHz_TDD_t *)dci_pdu)->harq_pid = rel8->harq_process;
        ((DCI1_10MHz_TDD_t *)dci_pdu)->dai      = rel8->downlink_assignment_index;	
        //        printf("TDD 1: mcs %d, rballoc %x,rv %d, NPRB %d\n",mcs,rballoc,rv,NPRB);
      } else {
	dci_alloc->dci_length                   = sizeof_DCI1_10MHz_FDD_t; 
        ((DCI1_10MHz_FDD_t *)dci_pdu)->rah      = rel8->resource_allocation_type;
        ((DCI1_10MHz_FDD_t *)dci_pdu)->mcs      = rel8->mcs_1;
        ((DCI1_10MHz_FDD_t *)dci_pdu)->ndi      = rel8->new_data_indicator_1;
        ((DCI1_10MHz_FDD_t *)dci_pdu)->rballoc  = rel8->resource_block_coding;
        ((DCI1_10MHz_FDD_t *)dci_pdu)->rv       = rel8->redundancy_version_1;
        ((DCI1_10MHz_FDD_t *)dci_pdu)->TPC      = rel8->tpc;
        ((DCI1_10MHz_FDD_t *)dci_pdu)->harq_pid = rel8->harq_process;
      }
      break;
    case 100:
      if (fp->frame_type == TDD) {
	dci_alloc->dci_length                       = sizeof_DCI1_20MHz_TDD_t; 
        ((DCI1_20MHz_TDD_t *)dci_pdu)->rah      = rel8->resource_allocation_type;
        ((DCI1_20MHz_TDD_t *)dci_pdu)->mcs      = rel8->mcs_1;
        ((DCI1_20MHz_TDD_t *)dci_pdu)->ndi      = rel8->new_data_indicator_1;
        ((DCI1_20MHz_TDD_t *)dci_pdu)->rballoc  = rel8->resource_block_coding;
        ((DCI1_20MHz_TDD_t *)dci_pdu)->rv       = rel8->redundancy_version_1;
        ((DCI1_20MHz_TDD_t *)dci_pdu)->TPC      = rel8->tpc;
        ((DCI1_20MHz_TDD_t *)dci_pdu)->harq_pid = rel8->harq_process;
        ((DCI1_20MHz_TDD_t *)dci_pdu)->dai      = rel8->downlink_assignment_index;	
        //        printf("TDD 1: mcs %d, rballoc %x,rv %d, NPRB %d\n",mcs,rballoc,rv,NPRB);
      } else {
	dci_alloc->dci_length                   = sizeof_DCI1_20MHz_FDD_t; 
        ((DCI1_20MHz_FDD_t *)dci_pdu)->rah      = rel8->resource_allocation_type;
        ((DCI1_20MHz_FDD_t *)dci_pdu)->mcs      = rel8->mcs_1;
        ((DCI1_20MHz_FDD_t *)dci_pdu)->ndi      = rel8->new_data_indicator_1;
        ((DCI1_20MHz_FDD_t *)dci_pdu)->rballoc  = rel8->resource_block_coding;
        ((DCI1_20MHz_FDD_t *)dci_pdu)->rv       = rel8->redundancy_version_1;
        ((DCI1_20MHz_FDD_t *)dci_pdu)->TPC      = rel8->tpc;
        ((DCI1_20MHz_FDD_t *)dci_pdu)->harq_pid = rel8->harq_process;
      }
      break;
    }

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    AssertFatal(rel8->harq_process<8,"Format 1: harq_pid=%d >= 8\n", rel8->harq_process);

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    dlsch0_harq = dlsch0->harq_processes[rel8->harq_process];
    dlsch0_harq->codeword=0;

    // printf("DCI: Setting subframe_tx for subframe %d\n",subframe);
    dlsch0->subframe_tx[subframe] = 1;

    conv_rballoc(rel8->resource_allocation_type,
                 rel8->resource_block_coding,
		 fp->N_RB_DL,
                 dlsch0_harq->rb_alloc);

    dlsch0_harq->nb_rb = conv_nprb(rel8->resource_allocation_type,
                                   rel8->resource_block_coding,
                                   fp->N_RB_DL);

    NPRB      = dlsch0_harq->nb_rb;


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    AssertFatal(NPRB>0,"NPRB == 0\n");
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    dlsch0_harq->rvidx       = rel8->redundancy_version_1;

    dlsch0_harq->Nl          = 1;
    //    dlsch[0]->layer_index = 0;
    if (beamforming_mode == 0)
      dlsch0_harq->mimo_mode = (fp->nb_antenna_ports_eNB == 1) ? SISO : ALAMOUTI;
    else if (beamforming_mode == 7)
      dlsch0_harq->mimo_mode = TM7;
    else
      LOG_E(PHY,"Invalid beamforming mode %dL\n", beamforming_mode);

    dlsch0_harq->dl_power_off = 1;

    dlsch0->active = 1;



    if (dlsch0_harq->round == 0) {
      dlsch0_harq->status = ACTIVE;
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      //            printf("Setting DLSCH process %d to ACTIVE\n",rel8->harq_process);
      // MCS and TBS don't change across HARQ rounds
      dlsch0_harq->mcs         = rel8->mcs_1;
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      dlsch0_harq->Qm          = get_Qm(rel8->mcs_1);
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      dlsch0_harq->TBS         = TBStable[get_I_TBS(dlsch0_harq->mcs)][NPRB-1];

    }

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    LOG_D(PHY,"DCI: Set harq_ids[%d] to %d (%p)\n",subframe,rel8->harq_process,dlsch0);
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