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/*******************************************************************************
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    OpenAirInterface 
    Copyright(c) 1999 - 2014 Eurecom
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    OpenAirInterface is free software: you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
    the Free Software Foundation, either version 3 of the License, or
    (at your option) any later version.
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    OpenAirInterface is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    GNU General Public License for more details.
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    You should have received a copy of the GNU General Public License
    along with OpenAirInterface.The full GNU General Public License is 
   included in this distribution in the file called "COPYING". If not, 
   see <http://www.gnu.org/licenses/>.
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  Contact Information
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  OpenAirInterface Admin: openair_admin@eurecom.fr
  OpenAirInterface Tech : openair_tech@eurecom.fr
  OpenAirInterface Dev  : openair4g-devel@eurecom.fr
  
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  Address      : Eurecom, Campus SophiaTech, 450 Route des Chappes, CS 50193 - 06904 Biot Sophia Antipolis cedex, FRANCE
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 *******************************************************************************/
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/*! \file dlsim.c
 \brief Top-level DL simulator
 \author R. Knopp
 \date 2011
 \version 0.1
 \company Eurecom
 \email: knopp@eurecom.fr
 \note
 \warning
*/

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#include <string.h>
#include <math.h>
#include <unistd.h>
#include <execinfo.h>
#include <signal.h>

#include "SIMULATION/TOOLS/defs.h"
#include "PHY/types.h"
#include "PHY/defs.h"
#include "PHY/vars.h"
#include "MAC_INTERFACE/vars.h"

#include "SCHED/defs.h"
#include "SCHED/vars.h"
#include "LAYER2/MAC/vars.h"

#include "OCG_vars.h"
#include "UTIL/LOG/log.h"

extern unsigned int dlsch_tbs25[27][25],TBStable[27][110];
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extern unsigned char offset_mumimo_llr_drange_fix;
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#ifdef XFORMS
#include "PHY/TOOLS/lte_phy_scope.h"
#endif



//#define AWGN
//#define NO_DCI



//#define ABSTRACTION
//#define PERFECT_CE

/*
  #define RBmask0 0x00fc00fc
  #define RBmask1 0x0
  #define RBmask2 0x0
  #define RBmask3 0x0
*/

PHY_VARS_eNB *PHY_vars_eNB;
PHY_VARS_UE *PHY_vars_UE;

int otg_enabled=0;

void handler(int sig) {
  void *array[10];
  size_t size;

  // get void*'s for all entries on the stack
  size = backtrace(array, 10);

  // print out all the frames to stderr
  fprintf(stderr, "Error: signal %d:\n", sig);
  backtrace_symbols_fd(array, size, 2);
  exit(1);
}

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void lte_param_init(unsigned char N_tx, unsigned char N_rx,unsigned char transmission_mode,uint8_t extended_prefix_flag,uint8_t fdd_flag, uint16_t Nid_cell,uint8_t tdd_config,uint8_t N_RB_DL,uint8_t osf) {
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  LTE_DL_FRAME_PARMS *lte_frame_parms;
  int i;


  printf("Start lte_param_init\n");
  PHY_vars_eNB = malloc(sizeof(PHY_VARS_eNB));
  PHY_vars_UE = malloc(sizeof(PHY_VARS_UE));
  //PHY_config = malloc(sizeof(PHY_CONFIG));
  mac_xface = malloc(sizeof(MAC_xface));

  srand(0);
  randominit(0);
  set_taus_seed(0);
  
  lte_frame_parms = &(PHY_vars_eNB->lte_frame_parms);

  lte_frame_parms->N_RB_DL            = N_RB_DL;   //50 for 10MHz and 25 for 5 MHz
  lte_frame_parms->N_RB_UL            = N_RB_DL;   
  lte_frame_parms->Ncp                = extended_prefix_flag;
  lte_frame_parms->Nid_cell           = Nid_cell;
  lte_frame_parms->nushift            = Nid_cell%6;
  lte_frame_parms->nb_antennas_tx     = N_tx;
  lte_frame_parms->nb_antennas_rx     = N_rx;
  lte_frame_parms->nb_antennas_tx_eNB = N_tx;
  lte_frame_parms->phich_config_common.phich_resource         = oneSixth;
  lte_frame_parms->tdd_config         = tdd_config;
  lte_frame_parms->frame_type         = (fdd_flag==1)?0 : 1;
  //  lte_frame_parms->Csrs = 2;
  //  lte_frame_parms->Bsrs = 0;
  //  lte_frame_parms->kTC = 0;44
  //  lte_frame_parms->n_RRC = 0;
  lte_frame_parms->mode1_flag = (transmission_mode == 1)? 1 : 0;

  init_frame_parms(lte_frame_parms,osf);
  
  //copy_lte_parms_to_phy_framing(lte_frame_parms, &(PHY_config->PHY_framing));
  
  phy_init_top(lte_frame_parms); //allocation
  
  lte_frame_parms->twiddle_fft      = twiddle_fft;
  lte_frame_parms->twiddle_ifft     = twiddle_ifft;
  lte_frame_parms->rev              = rev;
  
  PHY_vars_UE->is_secondary_ue = 0;
  PHY_vars_UE->lte_frame_parms = *lte_frame_parms;
  PHY_vars_eNB->lte_frame_parms = *lte_frame_parms;

  phy_init_lte_top(lte_frame_parms);
  dump_frame_parms(lte_frame_parms);

  PHY_vars_UE->PHY_measurements.n_adj_cells=0;
  PHY_vars_UE->PHY_measurements.adj_cell_id[0] = Nid_cell+1;
  PHY_vars_UE->PHY_measurements.adj_cell_id[1] = Nid_cell+2;

  for (i=0;i<3;i++)
    lte_gold(lte_frame_parms,PHY_vars_UE->lte_gold_table[i],Nid_cell+i);    

  phy_init_lte_ue(PHY_vars_UE,1,0);
  phy_init_lte_eNB(PHY_vars_eNB,0,0,0);

  generate_pcfich_reg_mapping(&PHY_vars_UE->lte_frame_parms);
  generate_phich_reg_mapping(&PHY_vars_UE->lte_frame_parms);
  
  // DL power control init
  PHY_vars_eNB->pdsch_config_dedicated->p_a  = 4; // 4 = 0dB
  ((PHY_vars_eNB->lte_frame_parms).pdsch_config_common).p_b = (lte_frame_parms->nb_antennas_tx_eNB>1) ? 1 : 0; // rho_a = rhob

  PHY_vars_UE->pdsch_config_dedicated->p_a  = 4; // 4 = 0dB
  ((PHY_vars_UE->lte_frame_parms).pdsch_config_common).p_b = (lte_frame_parms->nb_antennas_tx_eNB>1) ? 1 : 0; // rho_a = rhob

  printf("Done lte_param_init\n");


}


//DCI2_5MHz_2A_M10PRB_TDD_t DLSCH_alloc_pdu2_2A[2];

DCI1E_5MHz_2A_M10PRB_TDD_t  DLSCH_alloc_pdu2_1E[2];
uint64_t DLSCH_alloc_pdu_1[2];

#define UL_RB_ALLOC 0x1ff;
#define CCCH_RB_ALLOC computeRIV(PHY_vars_eNB->lte_frame_parms.N_RB_UL,0,2)
//#define DLSCH_RB_ALLOC 0x1fbf // igore DC component,RB13
//#define DLSCH_RB_ALLOC 0x0001
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void do_OFDM_mod_l(mod_sym_t **txdataF, int32_t **txdata, uint16_t next_slot, LTE_DL_FRAME_PARMS *frame_parms) {
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  int aa, slot_offset, slot_offset_F;

  slot_offset_F = (next_slot)*(frame_parms->ofdm_symbol_size)*((frame_parms->Ncp==1) ? 6 : 7);
  slot_offset = (next_slot)*(frame_parms->samples_per_tti>>1);

  for (aa=0; aa<frame_parms->nb_antennas_tx; aa++) {
    //    printf("Thread %d starting ... aa %d (%llu)\n",omp_get_thread_num(),aa,rdtsc());

    if (frame_parms->Ncp == 1)
      PHY_ofdm_mod(&txdataF[aa][slot_offset_F],        // input
		   &txdata[aa][slot_offset],         // output
		   frame_parms->log2_symbol_size,                // log2_fft_size
		   6,                 // number of symbols
		   frame_parms->nb_prefix_samples,               // number of prefix samples
		   frame_parms->twiddle_ifft,  // IFFT twiddle factors
		   frame_parms->rev,           // bit-reversal permutation
		   CYCLIC_PREFIX);
    else {
      normal_prefix_mod(&txdataF[aa][slot_offset_F],
			&txdata[aa][slot_offset],
			7,
			frame_parms);
    }
  

  }

}

int main(int argc, char **argv) {

  char c;
  int k,i,aa,aarx,aatx;

  int s,Kr,Kr_bytes;

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  double sigma2, sigma2_dB=10,SNR,snr0=-2.0,snr1,rate;
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  double snr_step=1,input_snr_step=1, snr_int=30;

  LTE_DL_FRAME_PARMS *frame_parms;
  double **s_re,**s_im,**r_re,**r_im;
  double forgetting_factor=0.0; //in [0,1] 0 means a new channel every time, 1 means keep the same channel
  double iqim=0.0;

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  uint8_t extended_prefix_flag=0,transmission_mode=1,n_tx=1,n_rx=1;
  uint16_t Nid_cell=0;
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  int eNB_id = 0, eNB_id_i = 1;
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  unsigned char mcs=0,mcs1=0,mcs2=0,mcs_i=0,dual_stream_UE = 0,awgn_flag=0,round,dci_flag=0;
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  unsigned char i_mod = 2;
  unsigned short NB_RB;
  unsigned char Ns,l,m;
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  uint16_t tdd_config=3;
  uint16_t n_rnti=0x1234;
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  int n_users = 1;

  SCM_t channel_model=Rayleigh1;
  //  unsigned char *input_data,*decoded_output;

  unsigned char *input_buffer[2];
  unsigned short input_buffer_length;
  unsigned int ret;
  unsigned int coded_bits_per_codeword=0,nsymb,dci_cnt,tbs=0;
 
  unsigned int tx_lev=0,tx_lev_dB=0,trials,errs[4]={0,0,0,0},round_trials[4]={0,0,0,0},dci_errors=0,dlsch_active=0,num_layers;
  int re_allocated;
  FILE *bler_fd;
  char bler_fname[256];
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  FILE *time_meas_fd;
  char time_meas_fname[256];
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  FILE *tikz_fd;
  char tikz_fname[256];

  FILE *input_trch_fd=NULL;
  unsigned char input_trch_file=0;
  FILE *input_fd=NULL;
  unsigned char input_file=0;
  //  char input_val_str[50],input_val_str2[50];

  char input_trch_val[16];
  double channelx,channely;

  //  unsigned char pbch_pdu[6];

  DCI_ALLOC_t dci_alloc[8],dci_alloc_rx[8];
  int num_common_dci=0,num_ue_spec_dci=0,num_dci=0;

  //  FILE *rx_frame_file;

  int n_frames;
  int n_ch_rlz = 1;
  channel_desc_t *eNB2UE[4];
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  uint8_t num_pdcch_symbols=1,num_pdcch_symbols_2=0;
  uint8_t pilot1,pilot2,pilot3;
  uint8_t rx_sample_offset = 0;
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  //char stats_buffer[4096];
  //int len;
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  uint8_t num_rounds = 4,fix_rounds=0;
  uint8_t subframe=7;
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  int u;
  int n=0;
  int abstx=0;
  int iii;
  FILE *csv_fd=NULL;
  char csv_fname[512];
  int ch_realization;
  int pmi_feedback=0;
  int hold_channel=0;
 
  // void *data;
  // int ii;
  int bler;
  double blerr[4],uncoded_ber,avg_ber;
  short *uncoded_ber_bit=NULL;
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  uint8_t N_RB_DL=25,osf=1;
  uint8_t fdd_flag = 0;
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#ifdef XFORMS
  FD_lte_phy_scope_ue *form_ue;
  char title[255];
#endif
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  uint32_t DLSCH_RB_ALLOC = 0x1fff;
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  int numCCE=0;
  int dci_length_bytes=0,dci_length=0;
  double BW = 5.0;
  int common_flag=0,TPC=0;

  double cpu_freq_GHz;
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  time_stats_t ts;//,sts,usts;
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  int avg_iter,iter_trials;
  int rballocset=0;
  int print_perf=0;
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  int test_perf=0;

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  int llr8_flag=0;

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  double effective_rate=0.0;
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  char channel_model_input[10]="I";
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  opp_enabled=1; // to enable the time meas

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  cpu_freq_GHz = (double)get_cpu_freq_GHz();
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  printf("Detected cpu_freq %f GHz\n",cpu_freq_GHz);

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  //signal(SIGSEGV, handler); 
  //signal(SIGABRT, handler); 
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  logInit();

  // default parameters
  n_frames = 1000;
  snr0 = 0;
  num_layers = 1;

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  while ((c = getopt (argc, argv, "hadpDe:m:n:o:s:f:t:c:g:r:F:x:y:z:MN:I:i:O:R:S:C:T:b:u:v:w:B:PLl:")) != -1) {
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    switch (c)
      {
      case 'a':
	awgn_flag = 1;
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	channel_model = AWGN;
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	break;
      case 'b':
	tdd_config=atoi(optarg);
	break;
      case 'B':
	N_RB_DL=atoi(optarg);
	break;
      case 'd':
	dci_flag = 1;
	break;
      case 'm':
	mcs = atoi(optarg);
	break;
      case 't':
	mcs_i = atoi(optarg);
	i_mod = get_Qm(mcs_i);
	break;
      case 'n':
	n_frames = atoi(optarg);
	break;
      case 'C':
	Nid_cell = atoi(optarg);
	break;
      case 'o':
	rx_sample_offset = atoi(optarg);
	break;
      case 'D':
	fdd_flag = 1;
	break;
      case 'r':
	DLSCH_RB_ALLOC = atoi(optarg);
	rballocset = 1;
	break;
      case 'F':
	forgetting_factor = atof(optarg);
	break;
      case 's':
	snr0 = atof(optarg);
	break;
      case 'w':
	snr_int = atof(optarg);
	break;
      case 'f':
	input_snr_step= atof(optarg);
	break;
      case 'M':
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	abstx = 1;
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	break;
      case 'N':
	n_ch_rlz= atof(optarg);
	break;
      case 'p':
	extended_prefix_flag=1;
	break;
      case 'c':
	num_pdcch_symbols=atoi(optarg);
	break;
      case 'g':
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	memcpy(channel_model_input,optarg,10);
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	switch((char)*optarg) {
	case 'A': 
	  channel_model=SCM_A;
	  break;
	case 'B': 
	  channel_model=SCM_B;
	  break;
	case 'C': 
	  channel_model=SCM_C;
	  break;
	case 'D': 
	  channel_model=SCM_D;
	  break;
	case 'E': 
	  channel_model=EPA;
	  break;
	case 'F': 
	  channel_model=EVA;
	  break;
	case 'G': 
	  channel_model=ETU;
	  break;
	case 'H':
	  channel_model=Rayleigh8;
	  break;
	case 'I':
	  channel_model=Rayleigh1;
	  break;
	case 'J':
	  channel_model=Rayleigh1_corr;
	  break;
	case 'K':
	  channel_model=Rayleigh1_anticorr;
	  break;
	case 'L':
	  channel_model=Rice8;
	  break;
	case 'M':
	  channel_model=Rice1;
	  break;
	case 'N':
	  channel_model=AWGN;
	  break;
	default:
	  msg("Unsupported channel model!\n");
	  exit(-1);
	}
	break;
      case 'x':
	transmission_mode=atoi(optarg);
	if ((transmission_mode!=1) &&
	    (transmission_mode!=2) &&
	    (transmission_mode!=5) &&
	    (transmission_mode!=6)) {
	  msg("Unsupported transmission mode %d\n",transmission_mode);
	  exit(-1);
	}
	if (transmission_mode>1) {
	  n_tx = 2;
	}
	break;
      case 'y':
	n_tx=atoi(optarg);
	if ((n_tx==0) || (n_tx>2)) {
	  msg("Unsupported number of tx antennas %d\n",n_tx);
	  exit(-1);
	}
	break;
      case 'z':
	n_rx=atoi(optarg);
	if ((n_rx==0) || (n_rx>2)) {
	  msg("Unsupported number of rx antennas %d\n",n_rx);
	  exit(-1);
	}
	break;
      case 'I':
	input_trch_fd = fopen(optarg,"r");
	input_trch_file=1;
	break;
      case 'i':
	input_fd = fopen(optarg,"r");
	input_file=1;
	dci_flag = 1;	
	break;
      case 'e':
	num_rounds=1;
	fix_rounds=1;
	common_flag = 1;
	TPC = atoi(optarg);
	break;
      case 'R':
	num_rounds=atoi(optarg);
	fix_rounds=1;
	break;
      case 'S':
	subframe=atoi(optarg);
	break;
      case 'T':
	n_rnti=atoi(optarg);
	break;	
      case 'u':
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	dual_stream_UE=1;
	openair_daq_vars.use_ia_receiver = 1;
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	if ((n_tx!=2) || (transmission_mode!=5)) {
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	  msg("IA receiver only supported for TM5!");
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	  exit(-1);
	}
	break;
      case 'v':
	i_mod = atoi(optarg);
	if (i_mod!=2 && i_mod!=4 && i_mod!=6) {
	  msg("Wrong i_mod %d, should be 2,4 or 6\n",i_mod);
	  exit(-1);
	}
	break;
      case 'P':
	print_perf=1;
	break;
      case 'L':
	llr8_flag=1;
	break;
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      case 'l':
	offset_mumimo_llr_drange_fix=atoi(optarg);
	break;
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      case 'O':
	test_perf=atoi(optarg);
	//print_perf =1;
	break;
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      case 'h':
      default:
	printf("%s -h(elp) -a(wgn on) -d(ci decoding on) -p(extended prefix on) -m mcs -n n_frames -s snr0 -x transmission mode (1,2,5,6) -y TXant -z RXant -I trch_file\n",argv[0]);
	printf("-h This message\n");
	printf("-a Use AWGN channel and not multipath\n");
	printf("-c Number of PDCCH symbols\n");
	printf("-m MCS\n");
	printf("-d Transmit the DCI and compute its error statistics and the overall throughput\n");
	printf("-p Use extended prefix mode\n");
	printf("-n Number of frames to simulate\n");
	printf("-o Sample offset for receiver\n");
	printf("-s Starting SNR, runs from SNR to SNR+%.1fdB in steps of %.1fdB. If n_frames is 1 then just SNR is simulated and MATLAB/OCTAVE output is generated\n", snr_int, snr_step);
	printf("-f step size of SNR, default value is 1.\n");
	printf("-r ressource block allocation (see  section 7.1.6.3 in 36.213\n");
	printf("-g [A:M] Use 3GPP 25.814 SCM-A/B/C/D('A','B','C','D') or 36-101 EPA('E'), EVA ('F'),ETU('G') models (ignores delay spread and Ricean factor), Rayghleigh8 ('H'), Rayleigh1('I'), Rayleigh1_corr('J'), Rayleigh1_anticorr ('K'), Rice8('L'), Rice1('M')\n");
	printf("-F forgetting factor (0 new channel every trial, 1 channel constant\n");
	printf("-x Transmission mode (1,2,6 for the moment)\n");
	printf("-y Number of TX antennas used in eNB\n");
	printf("-z Number of RX antennas used in UE\n");
	printf("-t MCS of interfering UE\n");
	printf("-R Number of HARQ rounds (fixed)\n");
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	printf("-M Turns on calibration mode for abstraction.\n");
	printf("-N Determines the number of Channel Realizations in Abstraction mode. Default value is 1. \n");
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	printf("-O Set the percenatge of effective rate to testbench the modem performance (typically 30 and 70, range 1-100) \n");
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	printf("-I Input filename for TrCH data (binary)\n");
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	printf("-u Enables the Interference Aware Receiver for TM5 (default is normal receiver)\n");
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	exit(1);
	break;
      }
  }

  if (common_flag == 0) { 
    switch (N_RB_DL) {
    case 6:
      if (rballocset==0) DLSCH_RB_ALLOC = 0x3f;
      BW = 1.25;
      num_pdcch_symbols = 3;
      break;
    case 25:
      if (rballocset==0) DLSCH_RB_ALLOC = 0x1fff;
      BW = 5.00;
      break;
    case 50:
      if (rballocset==0) DLSCH_RB_ALLOC = 0x1ffff;
      BW = 10.00;
      break;
    case 100:
      if (rballocset==0) DLSCH_RB_ALLOC = 0x1ffffff;
      BW = 20.00;
      break;
    }
    NB_RB=conv_nprb(0,DLSCH_RB_ALLOC,N_RB_DL);
  }
  else 
    NB_RB = 4;

  NB_RB=conv_nprb(0,DLSCH_RB_ALLOC,N_RB_DL);

#ifdef XFORMS
  fl_initialize (&argc, argv, NULL, 0, 0);
  form_ue = create_lte_phy_scope_ue();
  sprintf (title, "LTE PHY SCOPE eNB");
  fl_show_form (form_ue->lte_phy_scope_ue, FL_PLACE_HOTSPOT, FL_FULLBORDER, title);  

  if (!dual_stream_UE==0) {
    openair_daq_vars.use_ia_receiver = 1;
    fl_set_button(form_ue->button_0,1);
    fl_set_object_label(form_ue->button_0, "IA Receiver ON");
    fl_set_object_color(form_ue->button_0, FL_GREEN, FL_GREEN);
  }
#endif

  if (transmission_mode==5) {
    n_users = 2;
    printf("dual_stream_UE=%d\n", dual_stream_UE);
  }

  lte_param_init(n_tx,n_rx,transmission_mode,extended_prefix_flag,fdd_flag,Nid_cell,tdd_config,N_RB_DL,osf);  

  eNB_id_i = PHY_vars_UE->n_connected_eNB;
  
  printf("Setting mcs = %d\n",mcs);
  printf("NPRB = %d\n",NB_RB);
  printf("n_frames = %d\n",n_frames);
  printf("Transmission mode %d with %dx%d antenna configuration, Extended Prefix %d\n",transmission_mode,n_tx,n_rx,extended_prefix_flag);

  snr1 = snr0+snr_int;
  printf("SNR0 %f, SNR1 %f\n",snr0,snr1);

  /*
    txdataF    = (int **)malloc16(2*sizeof(int*));
    txdataF[0] = (int *)malloc16(FRAME_LENGTH_BYTES);
    txdataF[1] = (int *)malloc16(FRAME_LENGTH_BYTES);
  
    txdata    = (int **)malloc16(2*sizeof(int*));
    txdata[0] = (int *)malloc16(FRAME_LENGTH_BYTES);
    txdata[1] = (int *)malloc16(FRAME_LENGTH_BYTES);
  */

  frame_parms = &PHY_vars_eNB->lte_frame_parms;

  s_re = malloc(2*sizeof(double*));
  s_im = malloc(2*sizeof(double*));
  r_re = malloc(2*sizeof(double*));
  r_im = malloc(2*sizeof(double*));
  //  r_re0 = malloc(2*sizeof(double*));
  //  r_im0 = malloc(2*sizeof(double*));

  nsymb = (PHY_vars_eNB->lte_frame_parms.Ncp == 0) ? 14 : 12;

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  printf("Channel Model= (%s,%d)\n",channel_model_input, channel_model);
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  printf("SCM-A=%d, SCM-B=%d, SCM-C=%d, SCM-D=%d, EPA=%d, EVA=%d, ETU=%d, Rayleigh8=%d, Rayleigh1=%d, Rayleigh1_corr=%d, Rayleigh1_anticorr=%d, Rice1=%d, Rice8=%d\n",
	 SCM_A, SCM_B, SCM_C, SCM_D, EPA, EVA, ETU, Rayleigh8, Rayleigh1, Rayleigh1_corr, Rayleigh1_anticorr, Rice1, Rice8);
  
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  if(transmission_mode==5)
    sprintf(bler_fname,"bler_tx%d_chan%d_nrx%d_mcs%d_mcsi%d_u%d_imod%d.csv",transmission_mode,channel_model,n_rx,mcs,mcs_i,dual_stream_UE,i_mod);
  else
    sprintf(bler_fname,"bler_tx%d_chan%d_nrx%d_mcs%d.csv",transmission_mode,channel_model,n_rx,mcs);
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  bler_fd = fopen(bler_fname,"w");
  fprintf(bler_fd,"SNR; MCS; TBS; rate; err0; trials0; err1; trials1; err2; trials2; err3; trials3; dci_err\n");
  
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  if (test_perf != 0) {
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    char hostname[1024];
    hostname[1023] = '\0';
    gethostname(hostname, 1023);
    printf("Hostname: %s\n", hostname);
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    char dirname[FILENAME_MAX];
    sprintf(dirname, "%s/SIMU/USER/pre-ci-logs-%s", getenv("OPENAIR_TARGETS"),hostname ); 
    sprintf(time_meas_fname,"%s/time_meas_prb%d_mcs%d_anttx%d_antrx%d_pdcch%d_channel%s_tx%d.csv",
	    dirname,N_RB_DL,mcs,n_tx,n_rx,num_pdcch_symbols,channel_model_input,transmission_mode);
    mkdir(dirname,0777); 
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    time_meas_fd = fopen(time_meas_fname,"w");
  }
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  if(abstx){
    // CSV file 
    sprintf(csv_fname,"dataout_tx%d_u2%d_mcs%d_chan%d_nsimus%d_R%d.m",transmission_mode,dual_stream_UE,mcs,channel_model,n_frames,num_rounds);
    csv_fd = fopen(csv_fname,"w");
    fprintf(csv_fd,"data_all%d=[",mcs);
  }

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  /*
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  //sprintf(tikz_fname, "second_bler_tx%d_u2=%d_mcs%d_chan%d_nsimus%d.tex",transmission_mode,dual_stream_UE,mcs,channel_model,n_frames);
  sprintf(tikz_fname, "second_bler_tx%d_u2%d_mcs%d_chan%d_nsimus%d",transmission_mode,dual_stream_UE,mcs,channel_model,n_frames);
  tikz_fd = fopen(tikz_fname,"w");
  //fprintf(tikz_fd,"\\addplot[color=red, mark=o] plot coordinates {");
  switch (mcs)
    {
    case 0:
      fprintf(tikz_fd,"\\addplot[color=blue, mark=star] plot coordinates {");
      break;
    case 1:
      fprintf(tikz_fd,"\\addplot[color=red, mark=star] plot coordinates {");
      break;
    case 2:
      fprintf(tikz_fd,"\\addplot[color=green, mark=star] plot coordinates {");
      break;
    case 3:
      fprintf(tikz_fd,"\\addplot[color=yellow, mark=star] plot coordinates {");
      break;
    case 4:
      fprintf(tikz_fd,"\\addplot[color=black, mark=star] plot coordinates {");
      break;
    case 5:
      fprintf(tikz_fd,"\\addplot[color=blue, mark=o] plot coordinates {");
      break;
    case 6:
      fprintf(tikz_fd,"\\addplot[color=red, mark=o] plot coordinates {");
      break;
    case 7:
      fprintf(tikz_fd,"\\addplot[color=green, mark=o] plot coordinates {");
      break;
    case 8:
      fprintf(tikz_fd,"\\addplot[color=yellow, mark=o] plot coordinates {");
      break;
    case 9:
      fprintf(tikz_fd,"\\addplot[color=black, mark=o] plot coordinates {");
      break;
    case 10:
      fprintf(tikz_fd,"\\addplot[color=blue, mark=square] plot coordinates {");
      break;
    case 11:
      fprintf(tikz_fd,"\\addplot[color=red, mark=square] plot coordinates {");
      break;
    case 12:
      fprintf(tikz_fd,"\\addplot[color=green, mark=square] plot coordinates {");
      break;
    case 13:
      fprintf(tikz_fd,"\\addplot[color=yellow, mark=square] plot coordinates {");
      break;
    case 14:
      fprintf(tikz_fd,"\\addplot[color=black, mark=square] plot coordinates {");
      break;
    case 15:
      fprintf(tikz_fd,"\\addplot[color=blue, mark=diamond] plot coordinates {");
      break;
    case 16:
      fprintf(tikz_fd,"\\addplot[color=red, mark=diamond] plot coordinates {");
      break;
    case 17:
      fprintf(tikz_fd,"\\addplot[color=green, mark=diamond] plot coordinates {");
      break;
    case 18:
      fprintf(tikz_fd,"\\addplot[color=yellow, mark=diamond] plot coordinates {");
      break;
    case 19:
      fprintf(tikz_fd,"\\addplot[color=black, mark=diamond] plot coordinates {");
      break;
    case 20:
      fprintf(tikz_fd,"\\addplot[color=blue, mark=x] plot coordinates {");
      break;
    case 21:
      fprintf(tikz_fd,"\\addplot[color=red, mark=x] plot coordinates {");
      break;
    case 22:
      fprintf(tikz_fd,"\\addplot[color=green, mark=x] plot coordinates {");
      break;
    case 23:
      fprintf(tikz_fd,"\\addplot[color=yellow, mark=x] plot coordinates {");
      break;
    case 24:
      fprintf(tikz_fd,"\\addplot[color=black, mark=x] plot coordinates {");
      break;
    case 25:
      fprintf(tikz_fd,"\\addplot[color=blue, mark=x] plot coordinates {");
      break;
    case 26:
      fprintf(tikz_fd,"\\addplot[color=red, mark=+] plot coordinates {");
      break;
    case 27:
      fprintf(tikz_fd,"\\addplot[color=green, mark=+] plot coordinates {");
      break;
    case 28:
      fprintf(tikz_fd,"\\addplot[color=yellow, mark=+] plot coordinates {");
      break;
    }
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  */

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  for (i=0;i<2;i++) {
    s_re[i] = malloc(FRAME_LENGTH_COMPLEX_SAMPLES*sizeof(double));
    s_im[i] = malloc(FRAME_LENGTH_COMPLEX_SAMPLES*sizeof(double));
    r_re[i] = malloc(FRAME_LENGTH_COMPLEX_SAMPLES*sizeof(double));
    r_im[i] = malloc(FRAME_LENGTH_COMPLEX_SAMPLES*sizeof(double));
    //    r_re0[i] = malloc(FRAME_LENGTH_COMPLEX_SAMPLES*sizeof(double));
    //    bzero(r_re0[i],FRAME_LENGTH_COMPLEX_SAMPLES*sizeof(double));
    //    r_im0[i] = malloc(FRAME_LENGTH_COMPLEX_SAMPLES*sizeof(double));
    //    bzero(r_im0[i],FRAME_LENGTH_COMPLEX_SAMPLES*sizeof(double));
  }


  PHY_vars_UE->lte_ue_pdcch_vars[0]->crnti = n_rnti;

  // Fill in UL_alloc
  UL_alloc_pdu.type    = 0;
  UL_alloc_pdu.hopping = 0;
  UL_alloc_pdu.rballoc = UL_RB_ALLOC;
  UL_alloc_pdu.mcs     = 1;
  UL_alloc_pdu.ndi     = 1;
  UL_alloc_pdu.TPC     = 0;
  UL_alloc_pdu.cqi_req = 1;

  CCCH_alloc_pdu.type               = 0;
  CCCH_alloc_pdu.vrb_type           = 0;
  CCCH_alloc_pdu.rballoc            = CCCH_RB_ALLOC;
  CCCH_alloc_pdu.ndi      = 1;
  CCCH_alloc_pdu.mcs      = 1;
  CCCH_alloc_pdu.harq_pid = 0;

  DLSCH_alloc_pdu2_1E[0].rah              = 0;
  DLSCH_alloc_pdu2_1E[0].rballoc          = DLSCH_RB_ALLOC;
  DLSCH_alloc_pdu2_1E[0].TPC              = 0;
  DLSCH_alloc_pdu2_1E[0].dai              = 0;
  DLSCH_alloc_pdu2_1E[0].harq_pid         = 0;
  //DLSCH_alloc_pdu2_1E[0].tb_swap          = 0;
  DLSCH_alloc_pdu2_1E[0].mcs             = mcs;  
  DLSCH_alloc_pdu2_1E[0].ndi             = 1;
  DLSCH_alloc_pdu2_1E[0].rv              = 0;
  // Forget second codeword
  DLSCH_alloc_pdu2_1E[0].tpmi             = (transmission_mode>=5 ? 5 : 0);  // precoding
  DLSCH_alloc_pdu2_1E[0].dl_power_off     = (transmission_mode==5 ? 0 : 1);

  DLSCH_alloc_pdu2_1E[1].rah              = 0;
  DLSCH_alloc_pdu2_1E[1].rballoc          = DLSCH_RB_ALLOC;
  DLSCH_alloc_pdu2_1E[1].TPC              = 0;
  DLSCH_alloc_pdu2_1E[1].dai              = 0;
  DLSCH_alloc_pdu2_1E[1].harq_pid         = 0;
  //DLSCH_alloc_pdu2_1E[1].tb_swap          = 0;
  DLSCH_alloc_pdu2_1E[1].mcs             = mcs_i;  
  DLSCH_alloc_pdu2_1E[1].ndi             = 1;
  DLSCH_alloc_pdu2_1E[1].rv              = 0;
  // Forget second codeword
  DLSCH_alloc_pdu2_1E[1].tpmi             = (transmission_mode>=5 ? 5 : 0) ;  // precoding
  DLSCH_alloc_pdu2_1E[1].dl_power_off     = (transmission_mode==5 ? 0 : 1);

  eNB2UE[0] = new_channel_desc_scm(PHY_vars_eNB->lte_frame_parms.nb_antennas_tx,
				   PHY_vars_UE->lte_frame_parms.nb_antennas_rx,
				   channel_model,
				   BW,
				   forgetting_factor,
				   rx_sample_offset,
				   0);
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  if(abstx==1 && num_rounds>1){
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    for(n=1;n<4;n++)
      eNB2UE[n] = new_channel_desc_scm(PHY_vars_eNB->lte_frame_parms.nb_antennas_tx,
				       PHY_vars_UE->lte_frame_parms.nb_antennas_rx,
				       channel_model,
				       BW,
				       forgetting_factor,
				       rx_sample_offset,
				       0);
  }
  if (eNB2UE[0]==NULL) {
    msg("Problem generating channel model. Exiting.\n");
    exit(-1);
  }

  for (k=0;k<n_users;k++) {
    // Create transport channel structures for 2 transport blocks (MIMO)
    for (i=0;i<2;i++) {
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      PHY_vars_eNB->dlsch_eNB[k][i] = new_eNB_dlsch(1,8,N_RB_DL,0);
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      if (!PHY_vars_eNB->dlsch_eNB[k][i]) {
	printf("Can't get eNB dlsch structures\n");
	exit(-1);
      }
      
      PHY_vars_eNB->dlsch_eNB[k][i]->rnti = n_rnti+k;
    }
  }

  for (i=0;i<2;i++) {
    PHY_vars_UE->dlsch_ue[0][i]  = new_ue_dlsch(1,8,MAX_TURBO_ITERATIONS,N_RB_DL,0);
    if (!PHY_vars_UE->dlsch_ue[0][i]) {
      printf("Can't get ue dlsch structures\n");
      exit(-1);
    }    
    PHY_vars_UE->dlsch_ue[0][i]->rnti   = n_rnti;
  }
  
  if (DLSCH_alloc_pdu2_1E[0].tpmi == 5) {

    PHY_vars_eNB->eNB_UE_stats[0].DL_pmi_single = (unsigned short)(taus()&0xffff);
    if (n_users>1)
      PHY_vars_eNB->eNB_UE_stats[1].DL_pmi_single = (PHY_vars_eNB->eNB_UE_stats[0].DL_pmi_single ^ 0x1555); //opposite PMI 
  }
  else {
    PHY_vars_eNB->eNB_UE_stats[0].DL_pmi_single = 0;
    if (n_users>1)
      PHY_vars_eNB->eNB_UE_stats[1].DL_pmi_single = 0;
  }


  if (input_fd==NULL) {


    /*
    // common DCI 
    memcpy(&dci_alloc[num_dci].dci_pdu[0],&CCCH_alloc_pdu,sizeof(DCI1A_5MHz_TDD_1_6_t));
    dci_alloc[num_dci].dci_length = sizeof_DCI1A_5MHz_TDD_1_6_t;
    dci_alloc[num_dci].L          = 2;
    dci_alloc[num_dci].rnti       = SI_RNTI;
    num_dci++;
    num_common_dci++;
    */

    // UE specific DCI
    for(k=0;k<n_users;k++) {
      switch(transmission_mode) {
      case 1:
      case 2:
	if (common_flag == 0) {
	  
	  if (PHY_vars_eNB->lte_frame_parms.frame_type == TDD) {
	    
	    switch (PHY_vars_eNB->lte_frame_parms.N_RB_DL) {
	    case 6:
	      dci_length = sizeof_DCI1_1_5MHz_TDD_t;
	      dci_length_bytes = sizeof(DCI1_1_5MHz_TDD_t);
	      ((DCI1_1_5MHz_TDD_t *)&DLSCH_alloc_pdu_1[k])->rah              = 0;
	      ((DCI1_1_5MHz_TDD_t *)&DLSCH_alloc_pdu_1[k])->rballoc          = DLSCH_RB_ALLOC;
	      ((DCI1_1_5MHz_TDD_t *)&DLSCH_alloc_pdu_1[k])->TPC              = 0;
	      ((DCI1_1_5MHz_TDD_t *)&DLSCH_alloc_pdu_1[k])->dai              = 0;
	      ((DCI1_1_5MHz_TDD_t *)&DLSCH_alloc_pdu_1[k])->harq_pid         = 0;
	      ((DCI1_1_5MHz_TDD_t *)&DLSCH_alloc_pdu_1[k])->mcs             = mcs;  
	      ((DCI1_1_5MHz_TDD_t *)&DLSCH_alloc_pdu_1[k])->ndi             = 1;
	      ((DCI1_1_5MHz_TDD_t *)&DLSCH_alloc_pdu_1[k])->rv              = 0;
	      break;
	    case 25:
	      dci_length = sizeof_DCI1_5MHz_TDD_t;
	      dci_length_bytes = sizeof(DCI1_5MHz_TDD_t);
	      ((DCI1_5MHz_TDD_t *)&DLSCH_alloc_pdu_1[k])->rah              = 0;
	      ((DCI1_5MHz_TDD_t *)&DLSCH_alloc_pdu_1[k])->rballoc          = DLSCH_RB_ALLOC;
	      ((DCI1_5MHz_TDD_t *)&DLSCH_alloc_pdu_1[k])->TPC              = 0;
	      ((DCI1_5MHz_TDD_t *)&DLSCH_alloc_pdu_1[k])->dai              = 0;
	      ((DCI1_5MHz_TDD_t *)&DLSCH_alloc_pdu_1[k])->harq_pid         = 0;
	      ((DCI1_5MHz_TDD_t *)&DLSCH_alloc_pdu_1[k])->mcs             = mcs;  
	      ((DCI1_5MHz_TDD_t *)&DLSCH_alloc_pdu_1[k])->ndi             = 1;
	      ((DCI1_5MHz_TDD_t *)&DLSCH_alloc_pdu_1[k])->rv              = 0;
	      break;
	    case 50:
	      dci_length = sizeof_DCI1_10MHz_TDD_t;
	      dci_length_bytes = sizeof(DCI1_10MHz_TDD_t);
	      ((DCI1_10MHz_TDD_t *)&DLSCH_alloc_pdu_1[k])->rah              = 0;
	      ((DCI1_10MHz_TDD_t *)&DLSCH_alloc_pdu_1[k])->rballoc          = DLSCH_RB_ALLOC;
	      ((DCI1_10MHz_TDD_t *)&DLSCH_alloc_pdu_1[k])->TPC              = 0;
	      ((DCI1_10MHz_TDD_t *)&DLSCH_alloc_pdu_1[k])->dai              = 0;
	      ((DCI1_10MHz_TDD_t *)&DLSCH_alloc_pdu_1[k])->harq_pid         = 0;
	      ((DCI1_10MHz_TDD_t *)&DLSCH_alloc_pdu_1[k])->mcs             = mcs;  
	      ((DCI1_10MHz_TDD_t *)&DLSCH_alloc_pdu_1[k])->ndi             = 1;
	      ((DCI1_10MHz_TDD_t *)&DLSCH_alloc_pdu_1[k])->rv              = 0;
	      break;
	    case 100:
	      ((DCI1_20MHz_TDD_t *)&DLSCH_alloc_pdu_1[k])->rah              = 0;
	      ((DCI1_20MHz_TDD_t *)&DLSCH_alloc_pdu_1[k])->rballoc          = DLSCH_RB_ALLOC;
	      ((DCI1_20MHz_TDD_t *)&DLSCH_alloc_pdu_1[k])->TPC              = 0;
	      ((DCI1_20MHz_TDD_t *)&DLSCH_alloc_pdu_1[k])->dai              = 0;
	      ((DCI1_20MHz_TDD_t *)&DLSCH_alloc_pdu_1[k])->harq_pid         = 0;
	      ((DCI1_20MHz_TDD_t *)&DLSCH_alloc_pdu_1[k])->mcs             = mcs;  
	      ((DCI1_20MHz_TDD_t *)&DLSCH_alloc_pdu_1[k])->ndi             = 1;
	      ((DCI1_20MHz_TDD_t *)&DLSCH_alloc_pdu_1[k])->rv              = 0;
	      dci_length = sizeof_DCI1_20MHz_TDD_t;
	      dci_length_bytes = sizeof(DCI1_20MHz_TDD_t);
	      break;
	    }
	  }
	  else {
	    switch (PHY_vars_eNB->lte_frame_parms.N_RB_DL) {
	    case 6:
	      dci_length = sizeof_DCI1_1_5MHz_FDD_t;
	      dci_length_bytes = sizeof(DCI1_1_5MHz_FDD_t);
	      ((DCI1_1_5MHz_FDD_t *)&DLSCH_alloc_pdu_1[k])->rah              = 0;
	      ((DCI1_1_5MHz_FDD_t *)&DLSCH_alloc_pdu_1[k])->rballoc          = DLSCH_RB_ALLOC;
	      ((DCI1_1_5MHz_FDD_t *)&DLSCH_alloc_pdu_1[k])->TPC              = 0;
	      ((DCI1_1_5MHz_FDD_t *)&DLSCH_alloc_pdu_1[k])->harq_pid         = 0;
	      ((DCI1_1_5MHz_FDD_t *)&DLSCH_alloc_pdu_1[k])->mcs             = mcs;  
	      ((DCI1_1_5MHz_FDD_t *)&DLSCH_alloc_pdu_1[k])->ndi             = 1;
	      ((DCI1_1_5MHz_FDD_t *)&DLSCH_alloc_pdu_1[k])->rv              = 0;
	      break;
	    case 25:
	      dci_length = sizeof_DCI1_5MHz_FDD_t;
	      dci_length_bytes = sizeof(DCI1_5MHz_FDD_t);
	      ((DCI1_5MHz_FDD_t *)&DLSCH_alloc_pdu_1[k])->rah              = 0;
	      ((DCI1_5MHz_FDD_t *)&DLSCH_alloc_pdu_1[k])->rballoc          = DLSCH_RB_ALLOC;
	      ((DCI1_5MHz_FDD_t *)&DLSCH_alloc_pdu_1[k])->TPC              = 0;
	      ((DCI1_5MHz_FDD_t *)&DLSCH_alloc_pdu_1[k])->harq_pid         = 0;
	      ((DCI1_5MHz_FDD_t *)&DLSCH_alloc_pdu_1[k])->mcs             = mcs;  
	      ((DCI1_5MHz_FDD_t *)&DLSCH_alloc_pdu_1[k])->ndi             = 1;
	      ((DCI1_5MHz_FDD_t *)&DLSCH_alloc_pdu_1[k])->rv              = 0;
	      break;
	    case 50:
	      dci_length = sizeof_DCI1_10MHz_FDD_t;
	      dci_length_bytes = sizeof(DCI1_10MHz_FDD_t);
	      ((DCI1_10MHz_FDD_t *)&DLSCH_alloc_pdu_1[k])->rah              = 0;
	      ((DCI1_10MHz_FDD_t *)&DLSCH_alloc_pdu_1[k])->rballoc          = DLSCH_RB_ALLOC;
	      ((DCI1_10MHz_FDD_t *)&DLSCH_alloc_pdu_1[k])->TPC              = 0;
	      ((DCI1_10MHz_FDD_t *)&DLSCH_alloc_pdu_1[k])->harq_pid         = 0;
	      ((DCI1_10MHz_FDD_t *)&DLSCH_alloc_pdu_1[k])->mcs             = mcs;  
	      ((DCI1_10MHz_FDD_t *)&DLSCH_alloc_pdu_1[k])->ndi             = 1;
	      ((DCI1_10MHz_FDD_t *)&DLSCH_alloc_pdu_1[k])->rv              = 0;
	      break;
	    case 100:
	      dci_length = sizeof_DCI1_20MHz_FDD_t;
	      dci_length_bytes = sizeof(DCI1_20MHz_FDD_t);
	      ((DCI1_20MHz_FDD_t *)&DLSCH_alloc_pdu_1[k])->rah              = 0;
	      ((DCI1_20MHz_FDD_t *)&DLSCH_alloc_pdu_1[k])->rballoc          = DLSCH_RB_ALLOC;
	      ((DCI1_20MHz_FDD_t *)&DLSCH_alloc_pdu_1[k])->TPC              = 0;
	      ((DCI1_20MHz_FDD_t *)&DLSCH_alloc_pdu_1[k])->harq_pid         = 0;
	      ((DCI1_20MHz_FDD_t *)&DLSCH_alloc_pdu_1[k])->mcs             = mcs;  
	      ((DCI1_20MHz_FDD_t *)&DLSCH_alloc_pdu_1[k])->ndi             = 1;
	      ((DCI1_20MHz_FDD_t *)&DLSCH_alloc_pdu_1[k])->rv              = 0;
	      break;
	    }	  
	  }
	  memcpy(&dci_alloc[num_dci].dci_pdu[0],&DLSCH_alloc_pdu_1[k],dci_length_bytes);
	  dci_alloc[num_dci].dci_length = dci_length;
1013
	  dci_alloc[num_dci].L          = 1;
1014 1015
	  dci_alloc[num_dci].rnti       = n_rnti+k;
	  dci_alloc[num_dci].format     = format1;
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	  dump_dci(&PHY_vars_eNB->lte_frame_parms,&dci_alloc[num_dci]);	

	  printf("Generating dlsch params for user %d\n",k);
	  generate_eNB_dlsch_params_from_dci(0,
					     &DLSCH_alloc_pdu_1[0],
					     n_rnti+k,
					     format1,
					     PHY_vars_eNB->dlsch_eNB[0],
					     &PHY_vars_eNB->lte_frame_parms,
					     PHY_vars_eNB->pdsch_config_dedicated,
					     SI_RNTI,
					     0,
					     P_RNTI,
					     PHY_vars_eNB->eNB_UE_stats[0].DL_pmi_single);
	  
	  num_dci++;
	  num_ue_spec_dci++;
	}
	else {
	  if (PHY_vars_eNB->lte_frame_parms.frame_type == TDD) {
	    
	    switch (PHY_vars_eNB->lte_frame_parms.N_RB_DL) {
	    case 6:
	      dci_length = sizeof_DCI1A_1_5MHz_TDD_1_6_t;
	      dci_length_bytes = sizeof(DCI1A_1_5MHz_TDD_1_6_t);
	      ((DCI1A_1_5MHz_TDD_1_6_t *)&DLSCH_alloc_pdu_1[k])->type             = 1;
	      ((DCI1A_1_5MHz_TDD_1_6_t *)&DLSCH_alloc_pdu_1[k])->vrb_type         = 0;
	      ((DCI1A_1_5MHz_TDD_1_6_t *)&DLSCH_alloc_pdu_1[k])->rballoc          = computeRIV(PHY_vars_eNB->lte_frame_parms.N_RB_DL,0,4);
	      ((DCI1A_1_5MHz_TDD_1_6_t *)&DLSCH_alloc_pdu_1[k])->TPC              = TPC;
	      ((DCI1A_1_5MHz_TDD_1_6_t *)&DLSCH_alloc_pdu_1[k])->dai              = 0;
	      ((DCI1A_1_5MHz_TDD_1_6_t *)&DLSCH_alloc_pdu_1[k])->harq_pid         = 0;
	      ((DCI1A_1_5MHz_TDD_1_6_t *)&DLSCH_alloc_pdu_1[k])->mcs             = mcs;  
	      ((DCI1A_1_5MHz_TDD_1_6_t *)&DLSCH_alloc_pdu_1[k])->ndi             = 0;
	      ((DCI1A_1_5MHz_TDD_1_6_t *)&DLSCH_alloc_pdu_1[k])->rv              = 0;
	      break;
	    case 25:
	      dci_length = sizeof_DCI1A_5MHz_TDD_1_6_t;
	      dci_length_bytes = sizeof(DCI1A_5MHz_TDD_1_6_t);
	      ((DCI1A_5MHz_TDD_1_6_t *)&DLSCH_alloc_pdu_1[k])->type             = 1;
	      ((DCI1A_5MHz_TDD_1_6_t *)&DLSCH_alloc_pdu_1[k])->vrb_type         = 0;
	      ((DCI1A_5MHz_TDD_1_6_t *)&DLSCH_alloc_pdu_1[k])->rballoc          = computeRIV(PHY_vars_eNB->lte_frame_parms.N_RB_DL,0,3);
	      ((DCI1A_5MHz_TDD_1_6_t *)&DLSCH_alloc_pdu_1[k])->TPC              = TPC;
	      ((DCI1A_5MHz_TDD_1_6_t *)&DLSCH_alloc_pdu_1[k])->dai              = 0;
	      ((DCI1A_5MHz_TDD_1_6_t *)&DLSCH_alloc_pdu_1[k])->harq_pid         = 0;
	      ((DCI1A_5MHz_TDD_1_6_t *)&DLSCH_alloc_pdu_1[k])->mcs             = mcs;  
	      ((DCI1A_5MHz_TDD_1_6_t *)&DLSCH_alloc_pdu_1[k])->ndi             = 0;
	      ((DCI1A_5MHz_TDD_1_6_t *)&DLSCH_alloc_pdu_1[k])->rv              = 1;
	      break;
	    case 50:
	      dci_length = sizeof_DCI1A_10MHz_TDD_1_6_t;
	      dci_length_bytes = sizeof(DCI1A_10MHz_TDD_1_6_t);
	      ((DCI1A_10MHz_TDD_1_6_t *)&DLSCH_alloc_pdu_1[k])->type             = 1;
	      ((DCI1A_10MHz_TDD_1_6_t *)&DLSCH_alloc_pdu_1[k])->vrb_type         = 1;
	      ((DCI1A_10MHz_TDD_1_6_t *)&DLSCH_alloc_pdu_1[k])->rballoc          = computeRIV(PHY_vars_eNB->lte_frame_parms.N_RB_DL,0,4);
	      ((DCI1A_10MHz_TDD_1_6_t *)&DLSCH_alloc_pdu_1[k])->TPC              = TPC;
	      ((DCI1A_10MHz_TDD_1_6_t *)&DLSCH_alloc_pdu_1[k])->dai              = 0;
	      ((DCI1A_10MHz_TDD_1_6_t *)&DLSCH_alloc_pdu_1[k])->harq_pid         = 0;
	      ((DCI1A_10MHz_TDD_1_6_t *)&DLSCH_alloc_pdu_1[k])->mcs             = mcs;  
	      ((DCI1A_10MHz_TDD_1_6_t *)&DLSCH_alloc_pdu_1[k])->ndi             = 0;
	      ((DCI1A_10MHz_TDD_1_6_t *)&DLSCH_alloc_pdu_1[k])->rv              = 0;
	      break;
	    case 100:
	      ((DCI1A_20MHz_TDD_1_6_t *)&DLSCH_alloc_pdu_1[k])->type             = 1;
	      ((DCI1A_20MHz_TDD_1_6_t *)&DLSCH_alloc_pdu_1[k])->vrb_type         = 1;
	      ((DCI1A_20MHz_TDD_1_6_t *)&DLSCH_alloc_pdu_1[k])->rballoc          = computeRIV(PHY_vars_eNB->lte_frame_parms.N_RB_DL,0,4);
	      ((DCI1A_20MHz_TDD_1_6_t *)&DLSCH_alloc_pdu_1[k])->TPC              = TPC;
	      ((DCI1A_20MHz_TDD_1_6_t *)&DLSCH_alloc_pdu_1[k])->dai              = 0;
	      ((DCI1A_20MHz_TDD_1_6_t *)&DLSCH_alloc_pdu_1[k])->harq_pid         = 0;
	      ((DCI1A_20MHz_TDD_1_6_t *)&DLSCH_alloc_pdu_1[k])->mcs             = mcs;  
	      ((DCI1A_20MHz_TDD_1_6_t *)&DLSCH_alloc_pdu_1[k])->ndi             = 0;
	      ((DCI1A_20MHz_TDD_1_6_t *)&DLSCH_alloc_pdu_1[k])->rv              = 0;
	      dci_length = sizeof_DCI1A_20MHz_TDD_1_6_t;
	      dci_length_bytes = sizeof(DCI1A_20MHz_TDD_1_6_t);
	      break;
	    }
	  }
	  else {
	    switch (PHY_vars_eNB->lte_frame_parms.N_RB_DL) {
	    case 6:
	      dci_length = sizeof_DCI1A_1_5MHz_FDD_t;
	      dci_length_bytes = sizeof(DCI1A_1_5MHz_FDD_t);
	      ((DCI1A_1_5MHz_FDD_t *)&DLSCH_alloc_pdu_1[k])->type             = 1;
	      ((DCI1A_1_5MHz_FDD_t *)&DLSCH_alloc_pdu_1[k])->vrb_type         = 1;
	      ((DCI1A_1_5MHz_FDD_t *)&DLSCH_alloc_pdu_1[k])->rballoc          = computeRIV(PHY_vars_eNB->lte_frame_parms.N_RB_DL,0,4);
	      ((DCI1A_1_5MHz_FDD_t *)&DLSCH_alloc_pdu_1[k])->TPC              = TPC;
	      ((DCI1A_1_5MHz_FDD_t *)&DLSCH_alloc_pdu_1[k])->harq_pid         = 0;
	      ((DCI1A_1_5MHz_FDD_t *)&DLSCH_alloc_pdu_1[k])->mcs             = mcs;  
	      ((DCI1A_1_5MHz_FDD_t *)&DLSCH_alloc_pdu_1[k])->ndi             = 0;
	      ((DCI1A_1_5MHz_FDD_t *)&DLSCH_alloc_pdu_1[k])->rv              = 0;
	      break;
	    case 25:
	      dci_length = sizeof_DCI1A_5MHz_FDD_t;
	      dci_length_bytes = sizeof(DCI1A_5MHz_FDD_t);
	      ((DCI1A_5MHz_FDD_t *)&DLSCH_alloc_pdu_1[k])->type             = 1;
	      ((DCI1A_5MHz_FDD_t *)&DLSCH_alloc_pdu_1[k])->vrb_type         = 1;
	      ((DCI1A_5MHz_FDD_t *)&DLSCH_alloc_pdu_1[k])->rballoc          = computeRIV(PHY_vars_eNB->lte_frame_parms.N_RB_DL,0,4);
	      ((DCI1A_5MHz_FDD_t *)&DLSCH_alloc_pdu_1[k])->TPC              = TPC;
	      ((DCI1A_5MHz_FDD_t *)&DLSCH_alloc_pdu_1[k])->harq_pid         = 0;
	      ((DCI1A_5MHz_FDD_t *)&DLSCH_alloc_pdu_1[k])->mcs             = mcs;  
	      ((DCI1A_5MHz_FDD_t *)&DLSCH_alloc_pdu_1[k])->ndi             = 0;
	      ((DCI1A_5MHz_FDD_t *)&DLSCH_alloc_pdu_1[k])->rv              = 0;
	      break;
	    case 50:
	      dci_length = sizeof_DCI1A_10MHz_FDD_t;
	      dci_length_bytes = sizeof(DCI1A_10MHz_FDD_t);
	      ((DCI1A_10MHz_FDD_t *)&DLSCH_alloc_pdu_1[k])->type             = 1;
	      ((DCI1A_10MHz_FDD_t *)&DLSCH_alloc_pdu_1[k])->vrb_type         = 1;
	      ((DCI1A_10MHz_FDD_t *)&DLSCH_alloc_pdu_1[k])->rballoc          = computeRIV(PHY_vars_eNB->lte_frame_parms.N_RB_DL,0,4);
	      ((DCI1A_10MHz_FDD_t *)&DLSCH_alloc_pdu_1[k])->TPC              = TPC;
	      ((DCI1A_10MHz_FDD_t *)&DLSCH_alloc_pdu_1[k])->harq_pid         = 0;
	      ((DCI1A_10MHz_FDD_t *)&DLSCH_alloc_pdu_1[k])->mcs             = mcs;  
	      ((DCI1A_10MHz_FDD_t *)&DLSCH_alloc_pdu_1[k])->ndi             = 0;
	      ((DCI1A_10MHz_FDD_t *)&DLSCH_alloc_pdu_1[k])->rv              = 0;
	      break;
	    case 100:
	      dci_length = sizeof_DCI1A_20MHz_FDD_t;
	      dci_length_bytes = sizeof(DCI1A_20MHz_FDD_t);
	      ((DCI1A_20MHz_FDD_t *)&DLSCH_alloc_pdu_1[k])->type             = 1;
	      ((DCI1A_20MHz_FDD_t *)&DLSCH_alloc_pdu_1[k])->vrb_type         = 1;
	      ((DCI1A_20MHz_FDD_t *)&DLSCH_alloc_pdu_1[k])->rballoc          = computeRIV(PHY_vars_eNB->lte_frame_parms.N_RB_DL,0,4);
	      ((DCI1A_20MHz_FDD_t *)&DLSCH_alloc_pdu_1[k])->TPC              = TPC;
	      ((DCI1A_20MHz_FDD_t *)&DLSCH_alloc_pdu_1[k])->harq_pid         = 0;
	      ((DCI1A_20MHz_FDD_t *)&DLSCH_alloc_pdu_1[k])->mcs             = mcs;  
	      ((DCI1A_20MHz_FDD_t *)&DLSCH_alloc_pdu_1[k])->ndi             = 0;
	      ((DCI1A_20MHz_FDD_t *)&DLSCH_alloc_pdu_1[k])->rv              = 0;
	      break;
	    }	  
	  }
	  memcpy(&dci_alloc[num_dci].dci_pdu[0],&DLSCH_alloc_pdu_1[k],dci_length_bytes);
	  dci_alloc[num_dci].dci_length = dci_length;
	  dci_alloc[num_dci].L          = 1;
	  dci_alloc[num_dci].rnti       = SI_RNTI;
	  dci_alloc[num_dci].format     = format1A;
	  dci_alloc[num_dci].nCCE       = 0;
1150
	  dump_dci(&PHY_vars_eNB->lte_frame_parms,&dci_alloc[num_dci]);	
1151

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	    printf("Generating dlsch params for user %d\n",k);
	    generate_eNB_dlsch_params_from_dci(0,
					       &DLSCH_alloc_pdu_1[0],
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					       SI_RNTI,
					       format1A,
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					       PHY_vars_eNB->dlsch_eNB[0],
					       &PHY_vars_eNB->lte_frame_parms,
					       PHY_vars_eNB->pdsch_config_dedicated,
					       SI_RNTI,
					       0,
					       P_RNTI,
					       PHY_vars_eNB->eNB_UE_stats[0].DL_pmi_single);
	  
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	  num_common_dci++;
	  num_dci++;

	}
	break;
      case 4:
	if (common_flag == 0) {
	  
	  if (PHY_vars_eNB->lte_frame_parms.nb_antennas_tx == 2) {

	    if (PHY_vars_eNB->lte_frame_parms.frame_type == TDD) {
	      
	      switch (PHY_vars_eNB->lte_frame_parms.N_RB_DL) {
	      case 6:
		dci_length = sizeof_DCI2_1_5MHz_2A_TDD_t;
		dci_length_bytes = sizeof(DCI2_1_5MHz_2A_TDD_t);
		((DCI2_1_5MHz_2A_TDD_t *)&DLSCH_alloc_pdu_1[k])->rballoc          = DLSCH_RB_ALLOC;
		((DCI2_1_5MHz_2A_TDD_t *)&DLSCH_alloc_pdu_1[k])->TPC              = 0;
		((DCI2_1_5MHz_2A_TDD_t *)&DLSCH_alloc_pdu_1[k])->dai              = 0;
		((DCI2_1_5MHz_2A_TDD_t *)&DLSCH_alloc_pdu_1[k])->harq_pid         = 0;
		((DCI2_1_5MHz_2A_TDD_t *)&DLSCH_alloc_pdu_1[k])->mcs1             = mcs1;  
		((DCI2_1_5MHz_2A_TDD_t *)&DLSCH_alloc_pdu_1[k])->ndi1             = 1;
		((DCI2_1_5MHz_2A_TDD_t *)&DLSCH_alloc_pdu_1[k])->rv1              = 0;
		((DCI2_1_5MHz_2A_TDD_t *)&DLSCH_alloc_pdu_1[k])->mcs2             = mcs2;  
		((DCI2_1_5MHz_2A_TDD_t *)&DLSCH_alloc_pdu_1[k])->ndi2             = 1;
		((DCI2_1_5MHz_2A_TDD_t *)&DLSCH_alloc_pdu_1[k])->rv2              = 0;
		break;
	      case 25:
		dci_length = sizeof_DCI2_5MHz_2A_TDD_t;
		dci_length_bytes = sizeof(DCI2_5MHz_2A_TDD_t);
		((DCI2_5MHz_2A_TDD_t *)&DLSCH_alloc_pdu_1[k])->rah              = 0;
		((DCI2_5MHz_2A_TDD_t *)&DLSCH_alloc_pdu_1[k])->rballoc          = DLSCH_RB_ALLOC;
		((DCI2_5MHz_2A_TDD_t *)&DLSCH_alloc_pdu_1[k])->TPC              = 0;
		((DCI2_5MHz_2A_TDD_t *)&DLSCH_alloc_pdu_1[k])->dai              = 0;
		((DCI2_5MHz_2A_TDD_t *)&DLSCH_alloc_pdu_1[k])->harq_pid         = 0;
		((DCI2_5MHz_2A_TDD_t *)&DLSCH_alloc_pdu_1[k])->mcs1             = mcs1;  
		((DCI2_5MHz_2A_TDD_t *)&DLSCH_alloc_pdu_1[k])->ndi1             = 1;
		((DCI2_5MHz_2A_TDD_t *)&DLSCH_alloc_pdu_1[k])->rv1              = 0;
		((DCI2_5MHz_2A_TDD_t *)&DLSCH_alloc_pdu_1[k])->mcs2             = mcs2;  
		((DCI2_5MHz_2A_TDD_t *)&DLSCH_alloc_pdu_1[k])->ndi2             = 1;
		((DCI2_5MHz_2A_TDD_t *)&DLSCH_alloc_pdu_1[k])->rv2              = 0;
		break;
	      case 50:
		dci_length = sizeof_DCI2_10MHz_2A_TDD_t;
		dci_length_bytes = sizeof(DCI2_10MHz_2A_TDD_t);
		((DCI2_10MHz_2A_TDD_t *)&DLSCH_alloc_pdu_1[k])->rah              = 0;
		((DCI2_10MHz_2A_TDD_t *)&DLSCH_alloc_pdu_1[k])->rballoc          = DLSCH_RB_ALLOC;
		((DCI2_10MHz_2A_TDD_t *)&DLSCH_alloc_pdu_1[k])->TPC              = 0;
		((DCI2_10MHz_2A_TDD_t *)&DLSCH_alloc_pdu_1[k])->dai              = 0;
		((DCI2_10MHz_2A_TDD_t *)&DLSCH_alloc_pdu_1[k])->harq_pid         = 0;
		((DCI2_10MHz_2A_TDD_t *)&DLSCH_alloc_pdu_1[k])->mcs1             = mcs1;  
		((DCI2_10MHz_2A_TDD_t *)&DLSCH_alloc_pdu_1[k])->ndi1             = 1;
		((DCI2_10MHz_2A_TDD_t *)&DLSCH_alloc_pdu_1[k])->rv1              = 0;
		((DCI2_10MHz_2A_TDD_t *)&DLSCH_alloc_pdu_1[k])->mcs2             = mcs2;  
		((DCI2_10MHz_2A_TDD_t *)&DLSCH_alloc_pdu_1[k])->ndi2             = 1;
		((DCI2_10MHz_2A_TDD_t *)&DLSCH_alloc_pdu_1[k])->rv2              = 0;
		break;
	      case 100:
		((DCI2_20MHz_2A_TDD_t *)&DLSCH_alloc_pdu_1[k])->rah              = 0;
		((DCI2_20MHz_2A_TDD_t *)&DLSCH_alloc_pdu_1[k])->rballoc          = DLSCH_RB_ALLOC;
		((DCI2_20MHz_2A_TDD_t *)&DLSCH_alloc_pdu_1[k])->TPC              = 0;
		((DCI2_20MHz_2A_TDD_t *)&DLSCH_alloc_pdu_1[k])->dai              = 0;
		((DCI2_20MHz_2A_TDD_t *)&DLSCH_alloc_pdu_1[k])->harq_pid         = 0;
		((DCI2_20MHz_2A_TDD_t *)&DLSCH_alloc_pdu_1[k])->mcs1             = mcs1;  
		((DCI2_20MHz_2A_TDD_t *)&DLSCH_alloc_pdu_1[k])->ndi1             = 1;
		((DCI2_20MHz_2A_TDD_t *)&DLSCH_alloc_pdu_1[k])->rv1              = 0;
		((DCI2_20MHz_2A_TDD_t *)&DLSCH_alloc_pdu_1[k])->mcs2             = mcs2;  
		((DCI2_20MHz_2A_TDD_t *)&DLSCH_alloc_pdu_1[k])->ndi2             = 1;
		((DCI2_20MHz_2A_TDD_t *)&DLSCH_alloc_pdu_1[k])->rv2              = 0;
		dci_length = sizeof_DCI2_20MHz_2A_TDD_t;
		dci_length_bytes = sizeof(DCI2_20MHz_2A_TDD_t);
		break;
	      }
	    }
	  
	    else {
	      switch (PHY_vars_eNB->lte_frame_parms.N_RB_DL) {
	      case 6:
		dci_length = sizeof_DCI2_1_5MHz_2A_FDD_t;
		dci_length_bytes = sizeof(DCI2_1_5MHz_2A_FDD_t);
		((DCI2_1_5MHz_2A_FDD_t *)&DLSCH_alloc_pdu_1[k])->rballoc          = DLSCH_RB_ALLOC;
		((DCI2_1_5MHz_2A_FDD_t *)&DLSCH_alloc_pdu_1[k])->TPC              = 0;
		((DCI2_1_5MHz_2A_FDD_t *)&DLSCH_alloc_pdu_1[k])->harq_pid         = 0;
		((DCI2_1_5MHz_2A_FDD_t *)&DLSCH_alloc_pdu_1[k])->mcs1             = mcs1;  
		((DCI2_1_5MHz_2A_FDD_t *)&DLSCH_alloc_pdu_1[k])->ndi1             = 1;
		((DCI2_1_5MHz_2A_FDD_t *)&DLSCH_alloc_pdu_1[k])->rv1              = 0;
		((DCI2_1_5MHz_2A_FDD_t *)&DLSCH_alloc_pdu_1[k])->mcs2             = mcs2;  
		((DCI2_1_5MHz_2A_FDD_t *)&DLSCH_alloc_pdu_1[k])->ndi2             = 1;
		((DCI2_1_5MHz_2A_FDD_t *)&DLSCH_alloc_pdu_1[k])->rv2              = 0;
		break;
	      case 25:
		dci_length = sizeof_DCI2_5MHz_2A_FDD_t;
		dci_length_bytes = sizeof(DCI2_5MHz_2A_FDD_t);
		((DCI2_5MHz_2A_FDD_t *)&DLSCH_alloc_pdu_1[k])->rah              = 0;
		((DCI2_5MHz_2A_FDD_t *)&DLSCH_alloc_pdu_1[k])->rballoc          = DLSCH_RB_ALLOC;
		((DCI2_5MHz_2A_FDD_t *)&DLSCH_alloc_pdu_1[k])->TPC              = 0;
		((DCI2_5MHz_2A_FDD_t *)&DLSCH_alloc_pdu_1[k])->harq_pid         = 0;
		((DCI2_5MHz_2A_FDD_t *)&DLSCH_alloc_pdu_1[k])->mcs1             = mcs1;  
		((DCI2_5MHz_2A_FDD_t *)&DLSCH_alloc_pdu_1[k])->ndi1             = 1;
		((DCI2_5MHz_2A_FDD_t *)&DLSCH_alloc_pdu_1[k])->rv1              = 0;
		((DCI2_5MHz_2A_FDD_t *)&DLSCH_alloc_pdu_1[k])->mcs2             = mcs2;  
		((DCI2_5MHz_2A_FDD_t *)&DLSCH_alloc_pdu_1[k])->ndi2             = 1;
		((DCI2_5MHz_2A_FDD_t *)&DLSCH_alloc_pdu_1[k])->rv2              = 0;
		break;
	      case 50:
		dci_length = sizeof_DCI2_10MHz_2A_FDD_t;
		dci_length_bytes = sizeof(DCI2_10MHz_2A_FDD_t);
		((DCI2_10MHz_2A_FDD_t *)&DLSCH_alloc_pdu_1[k])->rah              = 0;
		((DCI2_10MHz_2A_FDD_t *)&DLSCH_alloc_pdu_1[k])->rballoc          = DLSCH_RB_ALLOC;
		((DCI2_10MHz_2A_FDD_t *)&DLSCH_alloc_pdu_1[k])->TPC              = 0;
		((DCI2_10MHz_2A_FDD_t *)&DLSCH_alloc_pdu_1[k])->harq_pid         = 0;
		((DCI2_10MHz_2A_FDD_t *)&DLSCH_alloc_pdu_1[k])->mcs1             = mcs1;  
		((DCI2_10MHz_2A_FDD_t *)&DLSCH_alloc_pdu_1[k])->ndi1             = 1;
		((DCI2_10MHz_2A_FDD_t *)&DLSCH_alloc_pdu_1[k])->rv1              = 0;
		((DCI2_10MHz_2A_FDD_t *)&DLSCH_alloc_pdu_1[k])->mcs2             = mcs2;  
		((DCI2_10MHz_2A_FDD_t *)&DLSCH_alloc_pdu_1[k])->ndi2             = 1;
		((DCI2_10MHz_2A_FDD_t *)&DLSCH_alloc_pdu_1[k])->rv2              = 0;
		break;
	      case 100:
		dci_length = sizeof_DCI2_20MHz_2A_FDD_t;
		dci_length_bytes = sizeof(DCI2_20MHz_2A_FDD_t);
		((DCI2_20MHz_2A_FDD_t *)&DLSCH_alloc_pdu_1[k])->rah              = 0;
		((DCI2_20MHz_2A_FDD_t *)&DLSCH_alloc_pdu_1[k])->rballoc          = DLSCH_RB_ALLOC;
		((DCI2_20MHz_2A_FDD_t *)&DLSCH_alloc_pdu_1[k])->TPC              = 0;
		((DCI2_20MHz_2A_FDD_t *)&DLSCH_alloc_pdu_1[k])->harq_pid         = 0;
		((DCI2_20MHz_2A_FDD_t *)&DLSCH_alloc_pdu_1[k])->mcs1             = mcs1;  
		((DCI2_20MHz_2A_FDD_t *)&DLSCH_alloc_pdu_1[k])->ndi1             = 1;
		((DCI2_20MHz_2A_FDD_t *)&DLSCH_alloc_pdu_1[k])->rv1              = 0;
		((DCI2_20MHz_2A_FDD_t *)&DLSCH_alloc_pdu_1[k])->mcs2             = mcs2;  
		((DCI2_20MHz_2A_FDD_t *)&DLSCH_alloc_pdu_1[k])->ndi2             = 1;
		((DCI2_20MHz_2A_FDD_t *)&DLSCH_alloc_pdu_1[k])->rv2              = 0;
		break;
	      }	  
	    }
	  }
	  else if (PHY_vars_eNB->lte_frame_parms.nb_antennas_tx == 4) {

	  }
      
	  memcpy(&dci_alloc[num_dci].dci_pdu[0],&DLSCH_alloc_pdu_1[k],dci_length_bytes);
	  dci_alloc[num_dci].dci_length = dci_length;
	  dci_alloc[num_dci].L          = 1;
	  dci_alloc[num_dci].rnti       = n_rnti+k;
	  dci_alloc[num_dci].format     = format1;
	  dump_dci(&PHY_vars_eNB->lte_frame_parms,&dci_alloc[num_dci]);	
	  
	  printf("Generating dlsch params for user %d\n",k);
	  generate_eNB_dlsch_params_from_dci(0,
					     &DLSCH_alloc_pdu_1[0],
					     n_rnti+k,
					     format1,
					     PHY_vars_eNB->dlsch_eNB[0],
					     &PHY_vars_eNB->lte_frame_parms,
					     PHY_vars_eNB->pdsch_config_dedicated,
					     SI_RNTI,
					     0,
					     P_RNTI,
					     PHY_vars_eNB->eNB_UE_stats[0].DL_pmi_single);
	  
1324 1325 1326 1327 1328 1329 1330 1331 1332 1333 1334 1335 1336 1337 1338 1339 1340 1341 1342 1343 1344 1345 1346 1347 1348 1349 1350 1351 1352 1353 1354 1355 1356 1357 1358 1359 1360 1361 1362 1363 1364 1365 1366 1367 1368 1369 1370 1371 1372 1373 1374 1375 1376 1377 1378 1379 1380 1381 1382 1383 1384 1385 1386 1387 1388 1389 1390 1391 1392 1393 1394 1395 1396 1397 1398 1399 1400 1401 1402 1403 1404 1405 1406 1407 1408 1409 1410 1411 1412 1413 1414 1415 1416 1417 1418 1419 1420 1421 1422 1423 1424 1425 1426 1427 1428 1429 1430 1431 1432 1433 1434 1435 1436 1437 1438
	  num_dci++;
	  num_ue_spec_dci++;
	}
	else {
	  if (PHY_vars_eNB->lte_frame_parms.frame_type == TDD) {
	    
	    switch (PHY_vars_eNB->lte_frame_parms.N_RB_DL) {
	    case 6:
	      dci_length = sizeof_DCI1A_1_5MHz_TDD_1_6_t;
	      dci_length_bytes = sizeof(DCI1A_1_5MHz_TDD_1_6_t);
	      ((DCI1A_1_5MHz_TDD_1_6_t *)&DLSCH_alloc_pdu_1[k])->type             = 1;
	      ((DCI1A_1_5MHz_TDD_1_6_t *)&DLSCH_alloc_pdu_1[k])->vrb_type         = 0;
	      ((DCI1A_1_5MHz_TDD_1_6_t *)&DLSCH_alloc_pdu_1[k])->rballoc          = computeRIV(PHY_vars_eNB->lte_frame_parms.N_RB_DL,0,4);
	      ((DCI1A_1_5MHz_TDD_1_6_t *)&DLSCH_alloc_pdu_1[k])->TPC              = TPC;
	      ((DCI1A_1_5MHz_TDD_1_6_t *)&DLSCH_alloc_pdu_1[k])->dai              = 0;
	      ((DCI1A_1_5MHz_TDD_1_6_t *)&DLSCH_alloc_pdu_1[k])->harq_pid         = 0;
	      ((DCI1A_1_5MHz_TDD_1_6_t *)&DLSCH_alloc_pdu_1[k])->mcs             = mcs;  
	      ((DCI1A_1_5MHz_TDD_1_6_t *)&DLSCH_alloc_pdu_1[k])->ndi             = 0;
	      ((DCI1A_1_5MHz_TDD_1_6_t *)&DLSCH_alloc_pdu_1[k])->rv              = 0;
	      break;
	    case 25:
	      dci_length = sizeof_DCI1A_5MHz_TDD_1_6_t;
	      dci_length_bytes = sizeof(DCI1A_5MHz_TDD_1_6_t);
	      ((DCI1A_5MHz_TDD_1_6_t *)&DLSCH_alloc_pdu_1[k])->type             = 1;
	      ((DCI1A_5MHz_TDD_1_6_t *)&DLSCH_alloc_pdu_1[k])->vrb_type         = 0;
	      ((DCI1A_5MHz_TDD_1_6_t *)&DLSCH_alloc_pdu_1[k])->rballoc          = computeRIV(PHY_vars_eNB->lte_frame_parms.N_RB_DL,0,3);
	      ((DCI1A_5MHz_TDD_1_6_t *)&DLSCH_alloc_pdu_1[k])->TPC              = TPC;
	      ((DCI1A_5MHz_TDD_1_6_t *)&DLSCH_alloc_pdu_1[k])->dai              = 0;
	      ((DCI1A_5MHz_TDD_1_6_t *)&DLSCH_alloc_pdu_1[k])->harq_pid         = 0;
	      ((DCI1A_5MHz_TDD_1_6_t *)&DLSCH_alloc_pdu_1[k])->mcs             = mcs;  
	      ((DCI1A_5MHz_TDD_1_6_t *)&DLSCH_alloc_pdu_1[k])->ndi             = 0;
	      ((DCI1A_5MHz_TDD_1_6_t *)&DLSCH_alloc_pdu_1[k])->rv              = 1;
	      break;
	    case 50:
	      dci_length = sizeof_DCI1A_10MHz_TDD_1_6_t;
	      dci_length_bytes = sizeof(DCI1A_10MHz_TDD_1_6_t);
	      ((DCI1A_10MHz_TDD_1_6_t *)&DLSCH_alloc_pdu_1[k])->type             = 1;
	      ((DCI1A_10MHz_TDD_1_6_t *)&DLSCH_alloc_pdu_1[k])->vrb_type         = 1;
	      ((DCI1A_10MHz_TDD_1_6_t *)&DLSCH_alloc_pdu_1[k])->rballoc          = computeRIV(PHY_vars_eNB->lte_frame_parms.N_RB_DL,0,4);
	      ((DCI1A_10MHz_TDD_1_6_t *)&DLSCH_alloc_pdu_1[k])->TPC              = TPC;
	      ((DCI1A_10MHz_TDD_1_6_t *)&DLSCH_alloc_pdu_1[k])->dai              = 0;
	      ((DCI1A_10MHz_TDD_1_6_t *)&DLSCH_alloc_pdu_1[k])->harq_pid         = 0;
	      ((DCI1A_10MHz_TDD_1_6_t *)&DLSCH_alloc_pdu_1[k])->mcs             = mcs;  
	      ((DCI1A_10MHz_TDD_1_6_t *)&DLSCH_alloc_pdu_1[k])->ndi             = 0;
	      ((DCI1A_10MHz_TDD_1_6_t *)&DLSCH_alloc_pdu_1[k])->rv              = 0;
	      break;
	    case 100:
	      ((DCI1A_20MHz_TDD_1_6_t *)&DLSCH_alloc_pdu_1[k])->type             = 1;
	      ((DCI1A_20MHz_TDD_1_6_t *)&DLSCH_alloc_pdu_1[k])->vrb_type         = 1;
	      ((DCI1A_20MHz_TDD_1_6_t *)&DLSCH_alloc_pdu_1[k])->rballoc          = computeRIV(PHY_vars_eNB->lte_frame_parms.N_RB_DL,0,4);
	      ((DCI1A_20MHz_TDD_1_6_t *)&DLSCH_alloc_pdu_1[k])->TPC              = TPC;
	      ((DCI1A_20MHz_TDD_1_6_t *)&DLSCH_alloc_pdu_1[k])->dai              = 0;
	      ((DCI1A_20MHz_TDD_1_6_t *)&DLSCH_alloc_pdu_1[k])->harq_pid         = 0;
	      ((DCI1A_20MHz_TDD_1_6_t *)&DLSCH_alloc_pdu_1[k])->mcs             = mcs;  
	      ((DCI1A_20MHz_TDD_1_6_t *)&DLSCH_alloc_pdu_1[k])->ndi             = 0;
	      ((DCI1A_20MHz_TDD_1_6_t *)&DLSCH_alloc_pdu_1[k])->rv              = 0;
	      dci_length = sizeof_DCI1A_20MHz_TDD_1_6_t;
	      dci_length_bytes = sizeof(DCI1A_20MHz_TDD_1_6_t);
	      break;
	    }
	  }
	  else {
	    switch (PHY_vars_eNB->lte_frame_parms.N_RB_DL) {
	    case 6:
	      dci_length = sizeof_DCI1A_1_5MHz_FDD_t;
	      dci_length_bytes = sizeof(DCI1A_1_5MHz_FDD_t);
	      ((DCI1A_1_5MHz_FDD_t *)&DLSCH_alloc_pdu_1[k])->type             = 1;
	      ((DCI1A_1_5MHz_FDD_t *)&DLSCH_alloc_pdu_1[k])->vrb_type         = 1;
	      ((DCI1A_1_5MHz_FDD_t *)&DLSCH_alloc_pdu_1[k])->rballoc          = computeRIV(PHY_vars_eNB->lte_frame_parms.N_RB_DL,0,4);
	      ((DCI1A_1_5MHz_FDD_t *)&DLSCH_alloc_pdu_1[k])->TPC              = TPC;
	      ((DCI1A_1_5MHz_FDD_t *)&DLSCH_alloc_pdu_1[k])->harq_pid         = 0;
	      ((DCI1A_1_5MHz_FDD_t *)&DLSCH_alloc_pdu_1[k])->mcs             = mcs;  
	      ((DCI1A_1_5MHz_FDD_t *)&DLSCH_alloc_pdu_1[k])->ndi             = 0;
	      ((DCI1A_1_5MHz_FDD_t *)&DLSCH_alloc_pdu_1[k])->rv              = 0;
	      break;
	    case 25:
	      dci_length = sizeof_DCI1A_5MHz_FDD_t;
	      dci_length_bytes = sizeof(DCI1A_5MHz_FDD_t);
	      ((DCI1A_5MHz_FDD_t *)&DLSCH_alloc_pdu_1[k])->type             = 1;
	      ((DCI1A_5MHz_FDD_t *)&DLSCH_alloc_pdu_1[k])->vrb_type         = 1;
	      ((DCI1A_5MHz_FDD_t *)&DLSCH_alloc_pdu_1[k])->rballoc          = computeRIV(PHY_vars_eNB->lte_frame_parms.N_RB_DL,0,4);
	      ((DCI1A_5MHz_FDD_t *)&DLSCH_alloc_pdu_1[k])->TPC              = TPC;
	      ((DCI1A_5MHz_FDD_t *)&DLSCH_alloc_pdu_1[k])->harq_pid         = 0;
	      ((DCI1A_5MHz_FDD_t *)&DLSCH_alloc_pdu_1[k])->mcs             = mcs;  
	      ((DCI1A_5MHz_FDD_t *)&DLSCH_alloc_pdu_1[k])->ndi             = 0;
	      ((DCI1A_5MHz_FDD_t *)&DLSCH_alloc_pdu_1[k])->rv              = 0;
	      break;
	    case 50:
	      dci_length = sizeof_DCI1A_10MHz_FDD_t;
	      dci_length_bytes = sizeof(DCI1A_10MHz_FDD_t);
	      ((DCI1A_10MHz_FDD_t *)&DLSCH_alloc_pdu_1[k])->type             = 1;
	      ((DCI1A_10MHz_FDD_t *)&DLSCH_alloc_pdu_1[k])->vrb_type         = 1;
	      ((DCI1A_10MHz_FDD_t *)&DLSCH_alloc_pdu_1[k])->rballoc          = computeRIV(PHY_vars_eNB->lte_frame_parms.N_RB_DL,0,4);
	      ((DCI1A_10MHz_FDD_t *)&DLSCH_alloc_pdu_1[k])->TPC              = TPC;
	      ((DCI1A_10MHz_FDD_t *)&DLSCH_alloc_pdu_1[k])->harq_pid         = 0;
	      ((DCI1A_10MHz_FDD_t *)&DLSCH_alloc_pdu_1[k])->mcs             = mcs;  
	      ((DCI1A_10MHz_FDD_t *)&DLSCH_alloc_pdu_1[k])->ndi             = 0;
	      ((DCI1A_10MHz_FDD_t *)&DLSCH_alloc_pdu_1[k])->rv              = 0;
	      break;
	    case 100:
	      dci_length = sizeof_DCI1A_20MHz_FDD_t;
	      dci_length_bytes = sizeof(DCI1A_20MHz_FDD_t);
	      ((DCI1A_20MHz_FDD_t *)&DLSCH_alloc_pdu_1[k])->type             = 1;
	      ((DCI1A_20MHz_FDD_t *)&DLSCH_alloc_pdu_1[k])->vrb_type         = 1;
	      ((DCI1A_20MHz_FDD_t *)&DLSCH_alloc_pdu_1[k])->rballoc          = computeRIV(PHY_vars_eNB->lte_frame_parms.N_RB_DL,0,4);
	      ((DCI1A_20MHz_FDD_t *)&DLSCH_alloc_pdu_1[k])->TPC              = TPC;
	      ((DCI1A_20MHz_FDD_t *)&DLSCH_alloc_pdu_1[k])->harq_pid         = 0;
	      ((DCI1A_20MHz_FDD_t *)&DLSCH_alloc_pdu_1[k])->mcs             = mcs;  
	      ((DCI1A_20MHz_FDD_t *)&DLSCH_alloc_pdu_1[k])->ndi             = 0;
	      ((DCI1A_20MHz_FDD_t *)&DLSCH_alloc_pdu_1[k])->rv              = 0;
	      break;
	    }	  
	  }
	  memcpy(&dci_alloc[num_dci].dci_pdu[0],&DLSCH_alloc_pdu_1[k],dci_length_bytes);
	  dci_alloc[num_dci].dci_length = dci_length;
1439
	  dci_alloc[num_dci].L          = 1;
1440 1441 1442 1443
	  dci_alloc[num_dci].rnti       = SI_RNTI;
	  dci_alloc[num_dci].format     = format1A;
	  dci_alloc[num_dci].nCCE       = 0;
	  dump_dci(&PHY_vars_eNB->lte_frame_parms,&dci_alloc[num_dci]);	
1444

1445 1446 1447 1448 1449 1450 1451 1452 1453 1454 1455 1456 1457 1458 1459 1460 1461 1462 1463 1464 1465 1466
	    printf("Generating dlsch params for user %d\n",k);
	    generate_eNB_dlsch_params_from_dci(0,
					       &DLSCH_alloc_pdu_1[0],
					       SI_RNTI,
					       format1A,
					       PHY_vars_eNB->dlsch_eNB[0],
					       &PHY_vars_eNB->lte_frame_parms,
					       PHY_vars_eNB->pdsch_config_dedicated,
					       SI_RNTI,
					       0,
					       P_RNTI,
					       PHY_vars_eNB->eNB_UE_stats[0].DL_pmi_single);
	  
	  num_common_dci++;
	  num_dci++;

	}
	break;
      case 5:
      case 6:
	memcpy(&dci_alloc[num_dci].dci_pdu[0],&DLSCH_alloc_pdu2_1E[k],sizeof(DCI1E_5MHz_2A_M10PRB_TDD_t));
	dci_alloc[num_dci].dci_length = sizeof_DCI1E_5MHz_2A_M10PRB_TDD_t;
1467
	dci_alloc[num_dci].L          = 1;
1468 1469 1470 1471 1472 1473 1474 1475 1476 1477 1478 1479 1480 1481 1482 1483 1484 1485 1486 1487 1488 1489 1490 1491 1492 1493 1494 1495 1496 1497 1498 1499 1500 1501 1502 1503 1504 1505 1506 1507 1508 1509 1510 1511 1512 1513 1514 1515 1516 1517 1518 1519 1520 1521 1522 1523 1524 1525 1526 1527
	dci_alloc[num_dci].rnti       = n_rnti+k;
	dci_alloc[num_dci].format     = format1E_2A_M10PRB;
	dci_alloc[num_dci].nCCE       = 4*k;
	  printf("Generating dlsch params for user %d\n",k);
	  generate_eNB_dlsch_params_from_dci(0,
					     &DLSCH_alloc_pdu2_1E[k],
					     n_rnti+k,
					     format1E_2A_M10PRB,
					     PHY_vars_eNB->dlsch_eNB[k],
					     &PHY_vars_eNB->lte_frame_parms,
					     PHY_vars_eNB->pdsch_config_dedicated,
					     SI_RNTI,
					     0,
					     P_RNTI,
					     PHY_vars_eNB->eNB_UE_stats[k].DL_pmi_single);
	
	dump_dci(&PHY_vars_eNB->lte_frame_parms,&dci_alloc[num_dci]);
	num_ue_spec_dci++;
	num_dci++;

	break;
      default:
	printf("Unsupported Transmission Mode!!!");
	exit(-1);
	break;
      }




      /*
	memcpy(&dci_alloc[1].dci_pdu[0],&UL_alloc_pdu,sizeof(DCI0_5MHz_TDD0_t));
	dci_alloc[1].dci_length = sizeof_DCI0_5MHz_TDD_0_t;
	dci_alloc[1].L          = 2;
	dci_alloc[1].rnti       = n_rnti;
      */
    }

    if (n_frames==1) printf("num_pdcch_symbols %d, numCCE %d => ",num_pdcch_symbols,numCCE);
    numCCE = get_nCCE(num_pdcch_symbols,&PHY_vars_eNB->lte_frame_parms,get_mi(&PHY_vars_eNB->lte_frame_parms,subframe));
    if (n_frames==1) printf("%d\n",numCCE);
    
    // apply RNTI-based nCCE allocation
    for (i=num_common_dci;i<num_dci;i++) {
      
      dci_alloc[i].nCCE = get_nCCE_offset(1<<dci_alloc[i].L,
					  numCCE,
					  (dci_alloc[i].rnti==SI_RNTI)? 1 : 0,
					  dci_alloc[i].rnti,
					  subframe);
      if (n_frames==1) 
	printf("dci %d: rnti %x, format %d : nCCE %d/%d\n",i,dci_alloc[i].rnti, dci_alloc[i].format,
	       dci_alloc[i].nCCE,numCCE);
    }
    
    for (k=0;k<n_users;k++) {

      input_buffer_length = PHY_vars_eNB->dlsch_eNB[k][0]->harq_processes[0]->TBS/8;
      input_buffer[k] = (unsigned char *)malloc(input_buffer_length+4);
      memset(input_buffer[k],0,input_buffer_length+4);
1528

1529 1530 1531 1532 1533 1534 1535 1536 1537 1538 1539 1540 1541 1542 1543 1544 1545 1546 1547 1548 1549 1550
      if (input_trch_file==0) {
	for (i=0;i<input_buffer_length;i++) {
	  input_buffer[k][i]= (unsigned char)(taus()&0xff);
	}
      }
      
      else {
	i=0;
	while ((!feof(input_trch_fd)) && (i<input_buffer_length<<3)) {
	  ret=fscanf(input_trch_fd,"%s",input_trch_val);
	  if (input_trch_val[0] == '1')
	    input_buffer[k][i>>3]+=(1<<(7-(i&7)));
	  if (i<16)
	    printf("input_trch_val %d : %c\n",i,input_trch_val[0]);
	  i++;
	  if (((i%8) == 0) && (i<17))
	    printf("%x\n",input_buffer[k][(i-1)>>3]);
	}
	printf("Read in %d bits\n",i);
      }
    }
  }
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  // this is for user 0 only
  coded_bits_per_codeword = get_G(&PHY_vars_eNB->lte_frame_parms,
				  PHY_vars_eNB->dlsch_eNB[0][0]->nb_rb,
				  PHY_vars_eNB->dlsch_eNB[0][0]->rb_alloc,
				  get_Qm(PHY_vars_eNB->dlsch_eNB[0][0]->harq_processes[0]->mcs),
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				  PHY_vars_eNB->dlsch_eNB[0][0]->harq_processes[0]->Nl,
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				  num_pdcch_symbols,
				  0,subframe);
  
  uncoded_ber_bit = (short*) malloc(sizeof(short)*coded_bits_per_codeword);
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  printf("uncoded_ber_bit=%p\n",uncoded_ber_bit);
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  snr_step = input_snr_step;
  for (ch_realization=0;ch_realization<n_ch_rlz;ch_realization++){
    if(abstx){
      printf("**********************Channel Realization Index = %d **************************\n", ch_realization);
    }

    for (SNR=snr0;SNR<snr1;SNR+=snr_step) {
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      PHY_vars_UE->frame_rx=0;
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      errs[0]=0;
      errs[1]=0;
      errs[2]=0;
      errs[3]=0;
      round_trials[0] = 0;
      round_trials[1] = 0;
      round_trials[2] = 0;
      round_trials[3] = 0;

      dci_errors=0;
      avg_ber = 0;

      round=0;
      avg_iter = 0; iter_trials=0;
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      reset_meas(&PHY_vars_eNB->phy_proc_tx); // total eNB tx 
      reset_meas(&PHY_vars_eNB->dlsch_scrambling_stats);
      reset_meas(&PHY_vars_UE->dlsch_unscrambling_stats);
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      reset_meas(&PHY_vars_eNB->ofdm_mod_stats);
      reset_meas(&PHY_vars_eNB->dlsch_modulation_stats);
      reset_meas(&PHY_vars_eNB->dlsch_encoding_stats);
      reset_meas(&PHY_vars_eNB->dlsch_interleaving_stats);
      reset_meas(&PHY_vars_eNB->dlsch_rate_matching_stats);
      reset_meas(&PHY_vars_eNB->dlsch_turbo_encoding_stats);
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      reset_meas(&PHY_vars_UE->phy_proc_rx); // total UE rx
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      reset_meas(&PHY_vars_UE->ofdm_demod_stats);
      reset_meas(&PHY_vars_UE->dlsch_channel_estimation_stats);
      reset_meas(&PHY_vars_UE->dlsch_freq_offset_estimation_stats);
      reset_meas(&PHY_vars_UE->rx_dft_stats);
      reset_meas(&PHY_vars_UE->dlsch_decoding_stats);
      reset_meas(&PHY_vars_UE->dlsch_turbo_decoding_stats);
      reset_meas(&PHY_vars_UE->dlsch_deinterleaving_stats);
      reset_meas(&PHY_vars_UE->dlsch_rate_unmatching_stats);
      reset_meas(&PHY_vars_UE->dlsch_tc_init_stats);    
      reset_meas(&PHY_vars_UE->dlsch_tc_alpha_stats);
      reset_meas(&PHY_vars_UE->dlsch_tc_beta_stats);
      reset_meas(&PHY_vars_UE->dlsch_tc_gamma_stats);
      reset_meas(&PHY_vars_UE->dlsch_tc_ext_stats);
      reset_meas(&PHY_vars_UE->dlsch_tc_intl1_stats);
      reset_meas(&PHY_vars_UE->dlsch_tc_intl2_stats);
      for (trials = 0;trials<n_frames;trials++) {
	//  printf("Trial %d\n",trials);
	fflush(stdout);
	round=0;

	//if (trials%100==0)
	eNB2UE[0]->first_run = 1;

	while (round < num_rounds) {
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	  //	  printf("Trial %d, round %d\n",trials,round);
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	  round_trials[round]++;

	  if(transmission_mode>=5)
	    pmi_feedback=1;
	  else 
	    pmi_feedback=0;
	  
	  if (abstx) {
	    if (trials==0 && round==0 && SNR==snr0)  //generate a new channel
	      hold_channel = 0;
	    else
	      hold_channel = 1;
	  }
	  else
	    hold_channel = 0;

	PMI_FEEDBACK:
	
	  //  printf("Trial %d : Round %d, pmi_feedback %d \n",trials,round,pmi_feedback);
	  for (aa=0; aa<PHY_vars_eNB->lte_frame_parms.nb_antennas_tx;aa++) {
	    memset(&PHY_vars_eNB->lte_eNB_common_vars.txdataF[eNB_id][aa][0],0,FRAME_LENGTH_COMPLEX_SAMPLES_NO_PREFIX*sizeof(mod_sym_t));
	  }
	
	  if (input_fd==NULL) {

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	    start_meas(&PHY_vars_eNB->phy_proc_tx);

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	    // Simulate HARQ procedures!!!
	    if (common_flag == 0) {
	      
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	      if (round == 0) {   // First round
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		PHY_vars_eNB->dlsch_eNB[0][0]->harq_processes[0]->rvidx = round&3;
		if (PHY_vars_eNB->lte_frame_parms.frame_type == TDD) {
		  
		  switch (transmission_mode) {
		  case 1:
		  case 2:
		    switch (PHY_vars_eNB->lte_frame_parms.N_RB_DL) {
		    case 6:
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		      ((DCI1_1_5MHz_TDD_t *)&DLSCH_alloc_pdu_1[0])->ndi             = trials&1;
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		      ((DCI1_1_5MHz_TDD_t *)&DLSCH_alloc_pdu_1[0])->rv              = 0;
		      memcpy(&dci_alloc[0].dci_pdu[0],&DLSCH_alloc_pdu_1[0],sizeof(DCI1_1_5MHz_TDD_t));
		      break;
		    case 25:
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		      ((DCI1_5MHz_TDD_t *)&DLSCH_alloc_pdu_1[0])->ndi             = trials&1;
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		      ((DCI1_5MHz_TDD_t *)&DLSCH_alloc_pdu_1[0])->rv              = 0;
		      memcpy(&dci_alloc[0].dci_pdu[0],&DLSCH_alloc_pdu_1[0],sizeof(DCI1_5MHz_TDD_t));
		      break;
		    case 50:
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		      ((DCI1_10MHz_TDD_t *)&DLSCH_alloc_pdu_1[0])->ndi             = trials&1;
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		      ((DCI1_10MHz_TDD_t *)&DLSCH_alloc_pdu_1[0])->rv              = 0;
		      memcpy(&dci_alloc[0].dci_pdu[0],&DLSCH_alloc_pdu_1[0],sizeof(DCI1_10MHz_TDD_t));
		      break;
		    case 100:
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		      ((DCI1_20MHz_TDD_t *)&DLSCH_alloc_pdu_1[0])->ndi             = trials&1;
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		      ((DCI1_20MHz_TDD_t *)&DLSCH_alloc_pdu_1[0])->rv              = 0;
		      memcpy(&dci_alloc[0].dci_pdu[0],&DLSCH_alloc_pdu_1[0],sizeof(DCI1_20MHz_TDD_t));
		      break;
		    }
		    break;
		  case 5:
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		    DLSCH_alloc_pdu2_1E[0].ndi             = trials&1;
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		    DLSCH_alloc_pdu2_1E[0].rv              = 0;
		    memcpy(&dci_alloc[0].dci_pdu[0],&DLSCH_alloc_pdu2_1E[0],sizeof(DCI1E_5MHz_2A_M10PRB_TDD_t));
		    break;
		  }
		}
		else { // FDD
		  switch (transmission_mode) {
		  case 1:
		  case 2:
		    switch (PHY_vars_eNB->lte_frame_parms.N_RB_DL) {
		    case 6:
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		      ((DCI1_1_5MHz_FDD_t *)&DLSCH_alloc_pdu_1[0])->ndi             = trials&1;
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		      ((DCI1_1_5MHz_FDD_t *)&DLSCH_alloc_pdu_1[0])->rv              = 0;
		      memcpy(&dci_alloc[0].dci_pdu[0],&DLSCH_alloc_pdu_1[0],sizeof(DCI1_1_5MHz_FDD_t));
		      break;
		    case 25:
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		      ((DCI1_5MHz_FDD_t *)&DLSCH_alloc_pdu_1[0])->ndi             = trials&1;
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		      ((DCI1_5MHz_FDD_t *)&DLSCH_alloc_pdu_1[0])->rv              = 0;
		      memcpy(&dci_alloc[0].dci_pdu[0],&DLSCH_alloc_pdu_1[0],sizeof(DCI1_5MHz_FDD_t));
		      break;
		    case 50:
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		      ((DCI1_10MHz_FDD_t *)&DLSCH_alloc_pdu_1[0])->ndi             = trials&1;
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		      ((DCI1_10MHz_FDD_t *)&DLSCH_alloc_pdu_1[0])->rv              = 0;
		      memcpy(&dci_alloc[0].dci_pdu[0],&DLSCH_alloc_pdu_1[0],sizeof(DCI1_10MHz_FDD_t));
		      break;
		    case 100:
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		      ((DCI1_20MHz_FDD_t *)&DLSCH_alloc_pdu_1[0])->ndi             = trials&1;
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		      ((DCI1_20MHz_FDD_t *)&DLSCH_alloc_pdu_1[0])->rv              = 0;
		      memcpy(&dci_alloc[0].dci_pdu[0],&DLSCH_alloc_pdu_1[0],sizeof(DCI1_20MHz_FDD_t));
		      break;
		    }
		    break;
		  case 5:
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		    DLSCH_alloc_pdu2_1E[0].ndi             = trials&1;
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		    DLSCH_alloc_pdu2_1E[0].rv              = 0;
		    memcpy(&dci_alloc[0].dci_pdu[0],&DLSCH_alloc_pdu2_1E[0],sizeof(DCI1E_5MHz_2A_M10PRB_TDD_t));
		    break;
		  }
		  
		}
	      }
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	      else { 
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		PHY_vars_eNB->dlsch_eNB[0][0]->harq_processes[0]->rvidx = round&3;
		
		if (PHY_vars_eNB->lte_frame_parms.frame_type == TDD) {
		  
		  
		  switch (transmission_mode) {
		  case 1:
		  case 2:
		    switch (PHY_vars_eNB->lte_frame_parms.N_RB_DL) {
		    case 6:
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		      ((DCI1_1_5MHz_TDD_t *)&DLSCH_alloc_pdu_1[0])->ndi             = trials&1;
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		      ((DCI1_1_5MHz_TDD_t *)&DLSCH_alloc_pdu_1[0])->rv              = round&3;;
		      memcpy(&dci_alloc[0].dci_pdu[0],&DLSCH_alloc_pdu_1[0],sizeof(DCI1_1_5MHz_TDD_t));
		      break;
		    case 25:
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		      ((DCI1_5MHz_TDD_t *)&DLSCH_alloc_pdu_1[0])->ndi             = trials&1;
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		      ((DCI1_5MHz_TDD_t *)&DLSCH_alloc_pdu_1[0])->rv              = round&3;
		      memcpy(&dci_alloc[0].dci_pdu[0],&DLSCH_alloc_pdu_1[0],sizeof(DCI1_5MHz_TDD_t));
		      break;
		    case 50:
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		      ((DCI1_10MHz_TDD_t *)&DLSCH_alloc_pdu_1[0])->ndi             = trials&1;
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		      ((DCI1_10MHz_TDD_t *)&DLSCH_alloc_pdu_1[0])->rv              = round&3;
		      memcpy(&dci_alloc[0].dci_pdu[0],&DLSCH_alloc_pdu_1[0],sizeof(DCI1_10MHz_TDD_t));
		      break;
		    case 100:
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		      ((DCI1_20MHz_TDD_t *)&DLSCH_alloc_pdu_1[0])->ndi             = trials&1;
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		      ((DCI1_20MHz_TDD_t *)&DLSCH_alloc_pdu_1[0])->rv              = round&3;
		      memcpy(&dci_alloc[0].dci_pdu[0],&DLSCH_alloc_pdu_1[0],sizeof(DCI1_20MHz_TDD_t));
		      break;
		    }
		    break;
		  case 5:
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		    DLSCH_alloc_pdu2_1E[0].ndi             = trials&1;
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		    DLSCH_alloc_pdu2_1E[0].rv              = round&3;
		    memcpy(&dci_alloc[0].dci_pdu[0],&DLSCH_alloc_pdu2_1E[0],sizeof(DCI1E_5MHz_2A_M10PRB_TDD_t));
		    break;
		  }
		}
		else {
		  switch (transmission_mode) {
		  case 1:
		  case 2:
		    switch (PHY_vars_eNB->lte_frame_parms.N_RB_DL) {
		    case 6:
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		      ((DCI1_1_5MHz_FDD_t *)&DLSCH_alloc_pdu_1[0])->ndi             = trials&1;
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		      ((DCI1_1_5MHz_FDD_t *)&DLSCH_alloc_pdu_1[0])->rv              = round&3;;
		      memcpy(&dci_alloc[0].dci_pdu[0],&DLSCH_alloc_pdu_1[0],sizeof(DCI1_1_5MHz_FDD_t));
		      break;
		    case 25:
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		      ((DCI1_5MHz_FDD_t *)&DLSCH_alloc_pdu_1[0])->ndi             = trials&1;
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		      ((DCI1_5MHz_FDD_t *)&DLSCH_alloc_pdu_1[0])->rv              = round&3;
		      memcpy(&dci_alloc[0].dci_pdu[0],&DLSCH_alloc_pdu_1[0],sizeof(DCI1_5MHz_FDD_t));
		      break;
		    case 50:
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		      ((DCI1_10MHz_FDD_t *)&DLSCH_alloc_pdu_1[0])->ndi             = trials&1;
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		      ((DCI1_10MHz_FDD_t *)&DLSCH_alloc_pdu_1[0])->rv              = round&3;
		      memcpy(&dci_alloc[0].dci_pdu[0],&DLSCH_alloc_pdu_1[0],sizeof(DCI1_10MHz_FDD_t));
		      break;
		    case 100:
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		      ((DCI1_20MHz_FDD_t *)&DLSCH_alloc_pdu_1[0])->ndi             = trials&1;
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		      ((DCI1_20MHz_FDD_t *)&DLSCH_alloc_pdu_1[0])->rv              = round&3;
		      memcpy(&dci_alloc[0].dci_pdu[0],&DLSCH_alloc_pdu_1[0],sizeof(DCI1_20MHz_FDD_t));
		      break;
		    }
		    break;
		  case 5:
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		    DLSCH_alloc_pdu2_1E[0].ndi             = trials&1;
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		    DLSCH_alloc_pdu2_1E[0].rv              = round&3;
		    memcpy(&dci_alloc[0].dci_pdu[0],&DLSCH_alloc_pdu2_1E[0],sizeof(DCI1E_5MHz_2A_M10PRB_TDD_t));
		    break;
		  }
		}
	      }
	    }
	  
	    num_pdcch_symbols_2 = generate_dci_top(num_ue_spec_dci,
						   num_common_dci,
						   dci_alloc,
						   0,
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						   AMP,
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						   &PHY_vars_eNB->lte_frame_parms,
						   PHY_vars_eNB->lte_eNB_common_vars.txdataF[eNB_id],
						   subframe);

	    if (num_pdcch_symbols_2 > num_pdcch_symbols) {
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	      msg("Error: given num_pdcch_symbols not big enough (%d > %d)\n",num_pdcch_symbols_2,num_pdcch_symbols);
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	      exit(-1);
	    }

	    for (k=0;k<n_users;k++) {
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	      coded_bits_per_codeword = get_G(&PHY_vars_eNB->lte_frame_parms,
					      PHY_vars_eNB->dlsch_eNB[k][0]->nb_rb,
					      PHY_vars_eNB->dlsch_eNB[k][0]->rb_alloc,
					      get_Qm(PHY_vars_eNB->dlsch_eNB[k][0]->harq_processes[0]->mcs),
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					      PHY_vars_eNB->dlsch_eNB[k][0]->harq_processes[0]->Nl,
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					      num_pdcch_symbols,
					      0,subframe);
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#ifdef TBS_FIX   // This is for MESH operation!!!
	      tbs = (double)3*TBStable[get_I_TBS(PHY_vars_eNB->dlsch_eNB[k][0]->harq_processes[0]->mcs)][PHY_vars_eNB->dlsch_eNB[k][0]->nb_rb-1]/4;
#else
	      tbs = PHY_vars_eNB->dlsch_eNB[k][0]->harq_processes[0]->TBS;
#endif
	      rate = (double)tbs/(double)coded_bits_per_codeword;
	      
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	      if ((SNR==snr0) && (trials==0) && (round==0))
		printf("User %d: Rate = %f (%f bits/dim) (G %d, TBS %d, mod %d, pdcch_sym %d, ndi %d)\n",
		       k,rate,rate*get_Qm(PHY_vars_eNB->dlsch_eNB[k][0]->harq_processes[0]->mcs),
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		       coded_bits_per_codeword,
		       tbs,
		       get_Qm(PHY_vars_eNB->dlsch_eNB[k][0]->harq_processes[0]->mcs),
		       num_pdcch_symbols,
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		       PHY_vars_eNB->dlsch_eNB[0][0]->harq_processes[0]->round);
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	      // use the PMI from previous trial
	      if (DLSCH_alloc_pdu2_1E[0].tpmi == 5) {
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		PHY_vars_eNB->dlsch_eNB[0][0]->pmi_alloc = quantize_subband_pmi(&PHY_vars_UE->PHY_measurements,0,PHY_vars_eNB->lte_frame_parms.N_RB_DL);
		PHY_vars_UE->dlsch_ue[0][0]->pmi_alloc = quantize_subband_pmi(&PHY_vars_UE->PHY_measurements,0,PHY_vars_UE->lte_frame_parms.N_RB_DL);
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		if (n_users>1) 
                  PHY_vars_eNB->dlsch_eNB[1][0]->pmi_alloc = (PHY_vars_eNB->dlsch_eNB[0][0]->pmi_alloc ^ 0x1555); 
		/*
		  if ((trials<10) && (round==0)) {
		  printf("tx PMI UE0 %x (pmi_feedback %d)\n",pmi2hex_2Ar1(PHY_vars_eNB->dlsch_eNB[0][0]->pmi_alloc),pmi_feedback);
		  if (transmission_mode ==5)
		  printf("tx PMI UE1 %x\n",pmi2hex_2Ar1(PHY_vars_eNB->dlsch_eNB[1][0]->pmi_alloc));
		  }
		*/		
	      }
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	      start_meas(&PHY_vars_eNB->dlsch_encoding_stats);	      
	      if (dlsch_encoding(input_buffer[k],
				 &PHY_vars_eNB->lte_frame_parms,
				 num_pdcch_symbols,
				 PHY_vars_eNB->dlsch_eNB[k][0],
				 0,subframe,
				 &PHY_vars_eNB->dlsch_rate_matching_stats,
				 &PHY_vars_eNB->dlsch_turbo_encoding_stats,
				 &PHY_vars_eNB->dlsch_interleaving_stats
				 )<0)
		exit(-1);
	      stop_meas(&PHY_vars_eNB->dlsch_encoding_stats);  
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	      PHY_vars_eNB->dlsch_eNB[k][0]->rnti = (common_flag==0) ? n_rnti+k : SI_RNTI;	  
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	      start_meas(&PHY_vars_eNB->dlsch_scrambling_stats);	      
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	      dlsch_scrambling(&PHY_vars_eNB->lte_frame_parms,
			       0,
			       PHY_vars_eNB->dlsch_eNB[k][0],
			       coded_bits_per_codeword,
			       0,
			       subframe<<1);
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	      stop_meas(&PHY_vars_eNB->dlsch_scrambling_stats);	      
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	      if (n_frames==1) {
		for (s=0;s<PHY_vars_eNB->dlsch_eNB[k][0]->harq_processes[0]->C;s++) {
		  if (s<PHY_vars_eNB->dlsch_eNB[k][0]->harq_processes[0]->Cminus)
		    Kr = PHY_vars_eNB->dlsch_eNB[k][0]->harq_processes[0]->Kminus;
		  else
		    Kr = PHY_vars_eNB->dlsch_eNB[k][0]->harq_processes[0]->Kplus;
	      
		  Kr_bytes = Kr>>3;
	      
		  for (i=0;i<Kr_bytes;i++)
		    printf("%d : (%x)\n",i,PHY_vars_eNB->dlsch_eNB[k][0]->harq_processes[0]->c[s][i]);
		}
	      }
	  
	      start_meas(&PHY_vars_eNB->dlsch_modulation_stats);	      
	      re_allocated = dlsch_modulation(PHY_vars_eNB->lte_eNB_common_vars.txdataF[eNB_id],
					      AMP,
					      subframe,
					      &PHY_vars_eNB->lte_frame_parms,
					      num_pdcch_symbols,
					      PHY_vars_eNB->dlsch_eNB[k][0]);
	      stop_meas(&PHY_vars_eNB->dlsch_modulation_stats);	      
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	      /*
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	      if (trials==0 && round==0)
		printf("RE count %d\n",re_allocated);
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	      */
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	      if (num_layers>1)
		re_allocated = dlsch_modulation(PHY_vars_eNB->lte_eNB_common_vars.txdataF[eNB_id],
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						AMP,
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						subframe,
						&PHY_vars_eNB->lte_frame_parms,
						num_pdcch_symbols,
						PHY_vars_eNB->dlsch_eNB[k][1]);
	    } //n_users

	    
	    generate_pilots(PHY_vars_eNB,
			    PHY_vars_eNB->lte_eNB_common_vars.txdataF[eNB_id],
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			    AMP,
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			    LTE_NUMBER_OF_SUBFRAMES_PER_FRAME);
	  
	    start_meas(&PHY_vars_eNB->ofdm_mod_stats);
	    
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1922
	    do_OFDM_mod_l(PHY_vars_eNB->lte_eNB_common_vars.txdataF[eNB_id],
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			PHY_vars_eNB->lte_eNB_common_vars.txdata[eNB_id],
			(subframe*2),
			&PHY_vars_eNB->lte_frame_parms);

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	    do_OFDM_mod_l(PHY_vars_eNB->lte_eNB_common_vars.txdataF[eNB_id],
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			PHY_vars_eNB->lte_eNB_common_vars.txdata[eNB_id],
			(subframe*2)+1,
			&PHY_vars_eNB->lte_frame_parms);
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	    stop_meas(&PHY_vars_eNB->ofdm_mod_stats);
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	    stop_meas(&PHY_vars_eNB->phy_proc_tx); 
	    
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1935
	    do_OFDM_mod_l(PHY_vars_eNB->lte_eNB_common_vars.txdataF[eNB_id],
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			PHY_vars_eNB->lte_eNB_common_vars.txdata[eNB_id],
			(subframe*2)+2,
			&PHY_vars_eNB->lte_frame_parms);

	    if (n_frames==1) {
	      write_output("txsigF0.m","txsF0", &PHY_vars_eNB->lte_eNB_common_vars.txdataF[eNB_id][0][subframe*nsymb*PHY_vars_eNB->lte_frame_parms.ofdm_symbol_size],nsymb*PHY_vars_eNB->lte_frame_parms.ofdm_symbol_size,1,1);
	      if (PHY_vars_eNB->lte_frame_parms.nb_antennas_tx>1)
		write_output("txsigF1.m","txsF1", &PHY_vars_eNB->lte_eNB_common_vars.txdataF[eNB_id][1][subframe*nsymb*PHY_vars_eNB->lte_frame_parms.ofdm_symbol_size],nsymb*PHY_vars_eNB->lte_frame_parms.ofdm_symbol_size,1,1);
	    }

	    tx_lev = 0;
	    for (aa=0; aa<PHY_vars_eNB->lte_frame_parms.nb_antennas_tx; aa++) {
	      tx_lev += signal_energy(&PHY_vars_eNB->lte_eNB_common_vars.txdata[eNB_id][aa]
				      [subframe*PHY_vars_eNB->lte_frame_parms.samples_per_tti],
				      PHY_vars_eNB->lte_frame_parms.samples_per_tti);
	    }
	    tx_lev_dB = (unsigned int) dB_fixed(tx_lev);
	  
	    if (n_frames==1) {
	      printf("tx_lev = %d (%d dB)\n",tx_lev,tx_lev_dB);
	      write_output("txsig0.m","txs0", &PHY_vars_eNB->lte_eNB_common_vars.txdata[eNB_id][0][subframe* PHY_vars_eNB->lte_frame_parms.samples_per_tti],
			   
			   PHY_vars_eNB->lte_frame_parms.samples_per_tti,1,1);
	    }
	  }
	  /*
	    else {  // Read signal from file
	    i=0;
	    while (!feof(input_fd)) {
	    fscanf(input_fd,"%s %s",input_val_str,input_val_str2);
	    
	    if ((i%4)==0) {
	    ((short*)txdata[0])[i/2] = (short)((1<<15)*strtod(input_val_str,NULL));
	    ((short*)txdata[0])[(i/2)+1] = (short)((1<<15)*strtod(input_val_str2,NULL));
	    if ((i/4)<100)
	    printf("sample %d => %e + j%e (%d +j%d)\n",i/4,strtod(input_val_str,NULL),strtod(input_val_str2,NULL),((short*)txdata[0])[i/4],((short*)txdata[0])[(i/4)+1]);//1,input_val2,);
	    }
	    i++;
	    if (i>(FRAME_LENGTH_SAMPLES))
	    break;
	    }
	    printf("Read in %d samples\n",i/4);
	    write_output("txsig0.m","txs0", txdata[0],2*frame_parms->samples_per_tti,1,1);
	    //    write_output("txsig1.m","txs1", txdata[1],FRAME_LENGTH_COMPLEX_SAMPLES,1,1);
	    tx_lev = signal_energy(&txdata[0][0],
	    OFDM_SYMBOL_SIZE_COMPLEX_SAMPLES);
	    tx_lev_dB = (unsigned int) dB_fixed(tx_lev);
	    }
	  */
 
	  //	  printf("Copying tx ..., nsymb %d (n_tx %d), awgn %d\n",nsymb,PHY_vars_eNB->lte_frame_parms.nb_antennas_tx,awgn_flag);
	  for (i=0;i<2*frame_parms->samples_per_tti;i++) {
	    for (aa=0;aa<PHY_vars_eNB->lte_frame_parms.nb_antennas_tx;aa++) {
	      if (awgn_flag == 0) {
		s_re[aa][i] = ((double)(((short *)PHY_vars_eNB->lte_eNB_common_vars.txdata[eNB_id][aa]))[(2*subframe*PHY_vars_UE->lte_frame_parms.samples_per_tti) + (i<<1)]);
		s_im[aa][i] = ((double)(((short *)PHY_vars_eNB->lte_eNB_common_vars.txdata[eNB_id][aa]))[(2*subframe*PHY_vars_UE->lte_frame_parms.samples_per_tti) +(i<<1)+1]);
	      }
	      else {
		for (aarx=0;aarx<PHY_vars_UE->lte_frame_parms.nb_antennas_rx;aarx++) {
		  if (aa==0) {
		    r_re[aarx][i] = ((double)(((short *)PHY_vars_eNB->lte_eNB_common_vars.txdata[eNB_id][aa]))[(2*subframe*PHY_vars_UE->lte_frame_parms.samples_per_tti) +(i<<1)]);
		    r_im[aarx][i] = ((double)(((short *)PHY_vars_eNB->lte_eNB_common_vars.txdata[eNB_id][aa]))[(2*subframe*PHY_vars_UE->lte_frame_parms.samples_per_tti) +(i<<1)+1]);
		  }
		  else {
		    r_re[aarx][i] += ((double)(((short *)PHY_vars_eNB->lte_eNB_common_vars.txdata[eNB_id][aa]))[(2*subframe*PHY_vars_UE->lte_frame_parms.samples_per_tti) +(i<<1)]);
		    r_im[aarx][i] += ((double)(((short *)PHY_vars_eNB->lte_eNB_common_vars.txdata[eNB_id][aa]))[(2*subframe*PHY_vars_UE->lte_frame_parms.samples_per_tti) +(i<<1)+1]);
		  }
 
		}
	      }
	    }
	  }

	  // Multipath channel
	  if (awgn_flag == 0) {	
	    multipath_channel(eNB2UE[0],s_re,s_im,r_re,r_im,
			      2*frame_parms->samples_per_tti,hold_channel);
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	    //	    printf("amc: ****************** eNB2UE[%d]->n_rx = %d,dd %d\n",round,eNB2UE[round]->nb_rx,eNB2UE[round]->channel_offset);
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	    if(abstx==1 && num_rounds>1)
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	      if(round==0 && hold_channel==0){
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		random_channel(eNB2UE[1],0);
		random_channel(eNB2UE[2],0);
		random_channel(eNB2UE[3],0);		
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	      }
	  }
	
	
	if(abstx){
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	  if (trials==0 && round==0) {
	    // calculate freq domain representation to compute SINR
	    freq_channel(eNB2UE[0], NB_RB,2*NB_RB + 1);
	    // snr=pow(10.0,.1*SNR);
	    fprintf(csv_fd,"%f,",SNR);
	    
	    for (u=0;u<2*NB_RB;u++){
	      for (aarx=0;aarx<eNB2UE[0]->nb_rx;aarx++) {
		for (aatx=0;aatx<eNB2UE[0]->nb_tx;aatx++) {
		  channelx = eNB2UE[0]->chF[aarx+(aatx*eNB2UE[0]->nb_rx)][u].x;
		  channely = eNB2UE[0]->chF[aarx+(aatx*eNB2UE[<