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/*******************************************************************************

  Eurecom OpenAirInterface
  Copyright(c) 1999 - 2014 Eurecom

  This program is free software; you can redistribute it and/or modify it
  under the terms and conditions of the GNU General Public License,
  version 2, as published by the Free Software Foundation.

  This program is distributed in the hope 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.

  You should have received a copy of the GNU General Public License along with
  this program; if not, write to the Free Software Foundation, Inc.,
  51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.

  The full GNU General Public License is included in this distribution in
  the file called "COPYING".

  Contact Information
  Openair Admin: openair_admin@eurecom.fr
  Openair Tech : openair_tech@eurecom.fr
  Forums       : http://forums.eurecom.fsr/openairinterface
  Address      : Eurecom, Compus SophiaTech 450, route des chappes, 06451 Biot, France

*******************************************************************************/

/*! \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 "ARCH/CBMIMO1/DEVICE_DRIVER/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(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;
  char channel_model_input[10];
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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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	sprintf(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':
	dual_stream_UE=atoi(optarg);
	if (dual_stream_UE) {
	  openair_daq_vars.use_ia_receiver = 1;
	} else {
	  openair_daq_vars.use_ia_receiver = 0;
	}
	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");
	printf("-u Determines if the 2 streams at the UE are decoded or not. 0-->U2 is interference only and 1-->U2 is detected\n");
	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;

652
  printf("Channel Model= (%s,%d)\n",channel_model_input, channel_model);
653 654 655
  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);
  
656 657 658 659
  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);
660 661 662 663
  
  bler_fd = fopen(bler_fname,"w");
  fprintf(bler_fd,"SNR; MCS; TBS; rate; err0; trials0; err1; trials1; err2; trials2; err3; trials3; dci_err\n");
  
664
  if (test_perf != 0) {
665 666 667 668 669 670
    char hostname[1024];
    hostname[1023] = '\0';
    gethostname(hostname, 1023);
    printf("Hostname: %s\n", hostname);
    sprintf(time_meas_fname,"%s/TEST/OAI/PERF_%s/time_meas_prb%d_mcs%d_anttx%d_antrx%d_pdcch%d_channel%s_tx%d.csv",
	    getenv("OPENAIR_TARGETS"),hostname,
671 672 673
	    N_RB_DL,mcs,n_tx,n_rx,num_pdcch_symbols,channel_model_input,transmission_mode);
    time_meas_fd = fopen(time_meas_fname,"w");
  }
674 675 676 677 678 679 680 681
  
  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);
  }

682
  /*
683 684 685 686 687 688 689 690 691 692 693 694 695 696 697 698 699 700 701 702 703 704 705 706 707 708 709 710 711 712 713 714 715 716 717 718 719 720 721 722 723 724 725 726 727 728 729 730 731 732 733 734 735 736 737 738 739 740 741 742 743 744 745 746 747 748 749 750 751 752 753 754 755 756 757 758 759 760 761 762 763 764 765 766 767 768 769 770 771 772 773 774 775 776
  //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;
    }
777 778
  */

779 780 781 782 783 784 785 786 787 788 789 790 791 792 793 794 795 796 797 798 799 800 801 802 803 804 805 806 807 808 809 810 811 812 813 814 815 816 817 818 819 820 821 822 823 824 825 826 827 828 829 830 831 832 833 834 835 836 837 838 839 840 841
  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);
842
  if(abstx==1 && num_rounds>1){
843 844 845 846 847 848 849 850 851 852 853 854 855 856 857 858 859
    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++) {
860
      PHY_vars_eNB->dlsch_eNB[k][i] = new_eNB_dlsch(1,8,N_RB_DL,0);
861 862 863 864 865 866 867 868 869 870 871 872 873 874 875 876 877 878 879 880 881 882 883 884 885 886 887 888 889 890 891 892 893 894 895 896 897 898 899 900 901 902 903 904 905 906 907 908 909 910 911 912 913 914 915 916 917 918 919 920 921 922 923 924 925 926 927 928 929 930 931 932 933 934 935 936 937 938 939 940 941 942 943 944 945 946 947 948 949 950 951 952 953 954 955 956 957 958 959 960 961 962 963 964 965 966 967 968 969 970 971 972 973 974 975 976 977 978 979 980 981 982 983 984 985 986 987 988 989 990 991 992 993 994 995 996 997 998 999 1000 1001 1002 1003 1004 1005 1006 1007 1008 1009 1010 1011 1012 1013 1014 1015
      
      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;
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	  dci_alloc[num_dci].L          = 1;
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	  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;
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	  dump_dci(&PHY_vars_eNB->lte_frame_parms,&dci_alloc[num_dci]);	
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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);
	  
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 1439 1440 1441
	  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;
1442
	  dci_alloc[num_dci].L          = 1;
1443 1444 1445 1446
	  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]);	
1447

1448 1449 1450 1451 1452 1453 1454 1455 1456 1457 1458 1459 1460 1461 1462 1463 1464 1465 1466 1467 1468 1469
	    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;
1470
	dci_alloc[num_dci].L          = 1;
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 1528 1529 1530
	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);
1531

1532 1533 1534 1535 1536 1537 1538 1539 1540 1541 1542 1543 1544 1545 1546 1547 1548 1549 1550 1551 1552 1553
      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);
      }
    }
  }
1554 1555 1556 1557 1558 1559

  // 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) {
      PHY_vars_UE->frame=0;
      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) {
		PHY_vars_eNB->dlsch_eNB[0][0]->pmi_alloc = quantize_subband_pmi(&PHY_vars_UE->PHY_measurements,0);
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		PHY_vars_UE->dlsch_ue[0][0]->pmi_alloc = quantize_subband_pmi(&PHY_vars_UE->PHY_measurements,0);
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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);
	    
	    do_OFDM_mod(PHY_vars_eNB->lte_eNB_common_vars.txdataF[eNB_id],
			PHY_vars_eNB->lte_eNB_common_vars.txdata[eNB_id],
			(subframe*2),
			&PHY_vars_eNB->lte_frame_parms);

	    do_OFDM_mod(PHY_vars_eNB->lte_eNB_common_vars.txdataF[eNB_id],
			PHY_vars_eNB->lte_eNB_common_vars.txdata[eNB_id],
			(subframe*2)+1,
			&PHY_vars_eNB->lte_frame_parms);
1934
	    
1935
	    stop_meas(&PHY_vars_eNB->ofdm_mod_stats);
1936 1937
	    stop_meas(&PHY_vars_eNB->phy_proc_tx); 
	    
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	    do_OFDM_mod(PHY_vars_eNB->lte_eNB_common_vars.txdataF[eNB_id],
			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);
2016
	    //	    printf("amc: ****************** eNB2UE[%d]->n_rx = %d,dd %d\n",round,eNB2UE[round]->nb_rx,eNB2UE[round]->channel_offset);
2017
	    if(abstx==1 && num_rounds>1)
2018
	      if(round==0 && hold_channel==0){
2019 2020 2021
		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[0]->nb_rx)][u].y;
		  fprintf(csv_fd,"%e+i*(%e),",channelx,channely);
2039
		}
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	      }
	    }
	    
	    if(num_rounds>1){
	      freq_channel(eNB2UE[1], NB_RB,2*NB_RB + 1);
2045
	      
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	      for (u=0;u<2*NB_RB;u++){
		for (aarx=0;aarx<eNB2UE[1]->nb_rx;aarx++) {
		  for (aatx=0;aatx<eNB2UE[1]->nb_tx;aatx++) {
		    channelx = eNB2UE[1]->chF[aarx+(aatx*eNB2UE[1]->nb_rx)][u].x;
		    channely = eNB2UE[1]->chF[aarx+(aatx*eNB2UE[1]->nb_rx)][u].y;
		    fprintf(csv_fd,"%e+i*(%e),",channelx,channely);
2052
		  }
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		}
	      }
	      freq_channel(eNB2UE[2], NB_RB,2*NB_RB + 1);
	      
	      for (u=0;u<2*NB_RB;u++){
		for (aarx=0;aarx<eNB2UE[2]->nb_rx;aarx++) {
		  for (aatx=0;aatx<eNB2UE[2]->nb_tx;aatx++) {
		    channelx = eNB2UE[2]->chF[aarx+(aatx*eNB2UE[2]->nb_rx)][u].x;
		    channely = eNB2UE[2]->chF[aarx+(aatx*eNB2UE[2]->nb_rx)][u].y;
		    fprintf(csv_fd,"%e+i*(%e),",channelx,channely);
2063
		  }
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		}
	      }
	      
	      freq_channel(eNB2UE[3], NB_RB,2*NB_RB + 1);
	      
	      for (u=0;u<2*NB_RB;u++){
		for (aarx=0;aarx<eNB2UE[3]->nb_rx;aarx++) {
		  for (aatx=0;aatx<eNB2UE[3]->nb_tx;aatx++) {
		    channelx = eNB2UE[3]->chF[aarx+(aatx*eNB2UE[3]->nb_rx)][u].x;
		    channely = eNB2UE[3]->chF[aarx+(aatx*eNB2UE[3]->nb_rx)][u].y;
		    fprintf(csv_fd,"%e+i*(%e),",channelx,channely);