ulsim.c 57.7 KB
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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 ulsim.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 "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"

#ifdef XFORMS
#include "PHY/TOOLS/lte_phy_scope.h"
#endif

extern unsigned short dftsizes[33];
extern short *ul_ref_sigs[30][2][33];
//#define AWGN
//#define NO_DCI

#define BW 7.68
//#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;

#define MCS_COUNT 23//added for PHY abstraction

channel_desc_t *eNB2UE[NUMBER_OF_eNB_MAX][NUMBER_OF_UE_MAX];
channel_desc_t *UE2eNB[NUMBER_OF_UE_MAX][NUMBER_OF_eNB_MAX];
//Added for PHY abstraction
node_desc_t *enb_data[NUMBER_OF_eNB_MAX]; 
node_desc_t *ue_data[NUMBER_OF_UE_MAX];
//double sinr_bler_map[MCS_COUNT][2][16];

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extern uint16_t beta_ack[16],beta_ri[16],beta_cqi[16];
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//extern  char* namepointer_chMag ;


#ifdef XFORMS
FD_lte_phy_scope_enb *form_enb;
char title[255];
#endif

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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 N_RB_DL,uint8_t frame_type,uint8_t tdd_config,uint8_t osf) {
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  LTE_DL_FRAME_PARMS *lte_frame_parms;

  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));

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

  lte_frame_parms->frame_type         = frame_type;
  lte_frame_parms->tdd_config         = tdd_config;
  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->Ncp_UL             = extended_prefix_flag;
  lte_frame_parms->Nid_cell           = 10;
  lte_frame_parms->nushift            = 0;
  lte_frame_parms->nb_antennas_tx     = N_tx;
  lte_frame_parms->nb_antennas_rx     = N_rx;
  //  lte_frame_parms->Csrs = 2;
  //  lte_frame_parms->Bsrs = 0;
  //  lte_frame_parms->kTC = 0;
  //  lte_frame_parms->n_RRC = 0;
  lte_frame_parms->mode1_flag = (transmission_mode == 1)? 1 : 0;
  lte_frame_parms->pusch_config_common.ul_ReferenceSignalsPUSCH.cyclicShift = 0;//n_DMRS1 set to 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->lte_frame_parms = *lte_frame_parms;
  
  phy_init_lte_top(lte_frame_parms);

  phy_init_lte_ue(PHY_vars_UE,1,0);

  phy_init_lte_eNB(PHY_vars_eNB,0,0,0);

  printf("Done lte_param_init\n");


}




#define UL_RB_ALLOC 0x1ff;




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

  char c;
  int i,j,aa,u;

  int aarx,aatx;
  double channelx,channely;
  double sigma2, sigma2_dB=10,SNR,SNR2,snr0=-2.0,snr1,SNRmeas,rate,saving_bler;
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  double input_snr_step=.2,snr_int=30;
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  double blerr;

  //int **txdataF, **txdata;

  int **txdata;

  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;
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  int cqi_flag=0,cqi_error,cqi_errors,ack_errors,cqi_crc_falsepositives,cqi_crc_falsenegatives;
  int ch_realization;
  int eNB_id = 0;
  int chMod = 0 ;
  int UE_id = 0;
  unsigned char nb_rb=25,first_rb=0,mcs=0,round=0,bundling_flag=1;
  unsigned char l;

  unsigned char awgn_flag = 0 ;
  SCM_t channel_model=Rice1;


  unsigned char *input_buffer,harq_pid;
  unsigned short input_buffer_length;
  unsigned int ret;
  unsigned int coded_bits_per_codeword,nsymb;
  int subframe=3;
  unsigned int tx_lev=0,tx_lev_dB,trials,errs[4]={0,0,0,0},round_trials[4]={0,0,0,0};
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  uint8_t transmission_mode=1,n_rx=1,n_tx=1;
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  FILE *bler_fd=NULL;
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  char bler_fname[512];
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  FILE *time_meas_fd=NULL;
  char time_meas_fname[256];
 
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  FILE *input_fdUL=NULL,*trch_out_fdUL=NULL;
  //  unsigned char input_file=0;
  char input_val_str[50],input_val_str2[50];
 
  //  FILE *rx_frame_file;
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  FILE *csv_fdUL=NULL;
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  FILE *fperen=NULL;
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  char fperen_name[512];  
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  FILE *fmageren=NULL;
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  char fmageren_name[512];
  
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  FILE *flogeren=NULL;
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  char flogeren_name[512];

  /* FILE *ftxlev;
     char ftxlev_name[512];
  */
  
  char csv_fname[512];
  int n_frames=5000;
  int n_ch_rlz = 1;
  int abstx = 0; 
  int hold_channel=0; 
  channel_desc_t *UE2eNB;

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  uint8_t control_only_flag = 0;
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  int delay = 0;	
  double maxDoppler = 0.0;	
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  uint8_t srs_flag = 0;
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  uint8_t N_RB_DL=25,osf=1;
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  uint8_t cyclic_shift = 0;
  uint8_t cooperation_flag = 0; //0 no cooperation, 1 delay diversity, 2 Alamouti
  uint8_t beta_ACK=0,beta_RI=0,beta_CQI=2;
  uint8_t tdd_config=3,frame_type=FDD;
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  uint8_t N0=30;
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  double tx_gain=1.0;
  double cpu_freq_GHz;
  int avg_iter,iter_trials;

  uint32_t UL_alloc_pdu;
  int s,Kr,Kr_bytes;
  int dump_perf=0;
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  int test_perf=0;
  
  double effective_rate=0.0;
  char channel_model_input[10];
  
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  uint8_t max_turbo_iterations=4;
  uint8_t llr8_flag=0;
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  int nb_rb_set = 0;
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  int sf;
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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);


  logInit();

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  while ((c = getopt (argc, argv, "hapbm:n:Y:X:x:s:w:e:q:d:D:O:c:r:i:f:y:c:oA:C:R:g:N:l:S:T:QB:PI:L")) != -1) {
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    switch (c) {
    case 'a':
      channel_model = AWGN;
      chMod = 1;
      break;
    case 'b':
      bundling_flag = 0;
      break;
    case 'd':
      delay = atoi(optarg);
      break;
    case 'D':
      maxDoppler = atoi(optarg);
      break;
    case 'm':
      mcs = atoi(optarg);
      break;
    case 'n':
      n_frames = atoi(optarg);
      break;
    case 'Y':
      n_ch_rlz = atoi(optarg);
      break;  
    case 'X':
      abstx= 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;
	chMod = 2;
	break;
      case 'B': 
	channel_model=SCM_B;
	chMod = 3;
	break;
      case 'C': 
	channel_model=SCM_C;
	chMod = 4;
	break;
      case 'D': 
	channel_model=SCM_D;
	chMod = 5;
	break;
      case 'E': 
	channel_model=EPA;
	chMod = 6;
	break;
      case 'F': 
	channel_model=EVA;
	chMod = 7;
	break;
      case 'G': 
	channel_model=ETU;
	chMod = 8;
	break;
      case 'H':
	channel_model=Rayleigh8;
	chMod = 9;
	break;
      case 'I':
	channel_model=Rayleigh1;
	chMod = 10;
	break;
      case 'J':
	channel_model=Rayleigh1_corr;
	chMod = 11;
	break;
      case 'K':
	channel_model=Rayleigh1_anticorr;
	chMod = 12;
	break;
      case 'L':
	channel_model=Rice8;
	chMod = 13;
	break;
      case 'M':
	channel_model=Rice1;
	chMod = 14;
	break;
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      case 'N':
	channel_model=AWGN;
	chMod = 1;
	break;
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      default:
	msg("Unsupported channel model!\n");
	exit(-1);
	break;
      }
      break;
    case 's':
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      snr0 = atof(optarg);
      break;
    case 'w':
      snr_int = atof(optarg);
      break;
    case 'e':
      input_snr_step= atof(optarg);
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      break;
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    case 'x':
      transmission_mode=atoi(optarg);
      if ((transmission_mode!=1) &&
	  (transmission_mode!=2)) {
	msg("Unsupported transmission mode %d\n",transmission_mode);
	exit(-1);
      }
      if (transmission_mode>1) {
	n_tx = 1;
      }
      break;
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    case 'y':
      n_rx = atoi(optarg);
      break;
    case 'S':
      subframe = atoi(optarg);
      break;
    case 'T':
      tdd_config=atoi(optarg);
      frame_type=TDD;
      break;
    case 'p':
      extended_prefix_flag=1;
      break;
    case 'r':
      nb_rb = atoi(optarg);
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      nb_rb_set = 1;
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      break;
    case 'f':
      first_rb = atoi(optarg);
      break;
    case 'c':
      cyclic_shift = atoi(optarg);
      break;
    case 'N':
      N0 = atoi(optarg);
      break;
   
    case 'o':
      srs_flag = 1;
      break;

    case 'i':
      input_fdUL = fopen(optarg,"r");
      msg("Reading in %s (%p)\n",optarg,input_fdUL);
      if (input_fdUL == (FILE*)NULL) {
	msg("Unknown file %s\n",optarg);
	exit(-1);
      }
      //      input_file=1;
      break;
    case 'A':
      beta_ACK = atoi(optarg);
      if (beta_ACK>15) {
	printf("beta_ack must be in (0..15)\n");
	exit(-1);
      }
      break;
    case 'C':
      beta_CQI = atoi(optarg);
      if ((beta_CQI>15)||(beta_CQI<2)) {
	printf("beta_cqi must be in (2..15)\n");
	exit(-1);
      }
      break;
      
    case 'R':
      beta_RI = atoi(optarg);
      if ((beta_RI>15)||(beta_RI<2)) {
	printf("beta_ri must be in (0..13)\n");
	exit(-1);
      }
      break;
    case 'Q':
      cqi_flag=1;
      break;
    case 'B':
      N_RB_DL=atoi(optarg);
      break;
    case 'P':
      dump_perf=1;
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      opp_enabled=1;
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      break;
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    case 'O':
      test_perf=atoi(optarg);
      //print_perf =1;
      break;
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    case 'L':
      llr8_flag=1;
      break;
    case 'I':
      max_turbo_iterations=atoi(optarg);
      break;
    case 'h':
    default:
      printf("%s -h(elp) -a(wgn on) -m mcs -n n_frames -s snr0 -t delay_spread -p (extended prefix on) -r nb_rb -f first_rb -c cyclic_shift -o (srs on) -g channel_model [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'), -d Channel delay, -D maximum Doppler shift \n",argv[0]);
      exit(1);
      break;
    }
  }
  
  lte_param_init(1,n_rx,1,extended_prefix_flag,N_RB_DL,frame_type,tdd_config,osf);  
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  if (nb_rb_set == 0)
     nb_rb = PHY_vars_eNB->lte_frame_parms.N_RB_UL;

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  printf("1 . rxdataF_comp[0] %p\n",PHY_vars_eNB->lte_eNB_pusch_vars[0]->rxdataF_comp[0][0]);
  printf("Setting mcs = %d\n",mcs);
  printf("n_frames = %d\n",	n_frames);

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  snr1 = snr0+snr_int;
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  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;

  txdata = PHY_vars_UE->lte_ue_common_vars.txdata;

  
  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;
  
  coded_bits_per_codeword = nb_rb * (12 * get_Qm(mcs)) * nsymb;

  rate = (double)dlsch_tbs25[get_I_TBS(mcs)][nb_rb-1]/(coded_bits_per_codeword);

  printf("Rate = %f (mod %d), coded bits %d\n",rate,get_Qm(mcs),coded_bits_per_codeword);
  
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  sprintf(bler_fname,"ULbler_mcs%d_nrb%d_ChannelModel%d_nsim%d.csv",mcs,nb_rb,chMod,n_frames);
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  bler_fd = fopen(bler_fname,"w");
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  fprintf(bler_fd,"#SNR;mcs;nb_rb;TBS;rate;errors[0];trials[0];errors[1];trials[1];errors[2];trials[2];errors[3];trials[3]\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);
    sprintf(time_meas_fname,"%s/TEST/OAI/PERF_%s/time_meas_prb%d_mcs%d_antrx%d_channel%s_tx%d.csv",
	    getenv("OPENAIR_TARGETS"),hostname,
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	    N_RB_DL,mcs,n_rx,channel_model_input,transmission_mode);
    time_meas_fd = fopen(time_meas_fname,"w");
  }
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  if(abstx){
    sprintf(fperen_name,"ULchan_estims_F_mcs%d_rb%d_chanMod%d_nframes%d_chanReal%d.m",mcs,nb_rb,chMod,n_frames,n_ch_rlz);
    fperen = fopen(fperen_name,"a+");
    fprintf(fperen,"chest_f = [");
    fclose(fperen); 
  
    sprintf(fmageren_name,"ChanMag_F_mcs%d_rb%d_chanMod%d_nframes%d_chanReal%d.m",mcs,nb_rb,chMod,n_frames,n_ch_rlz);
    fmageren = fopen(fmageren_name,"a+");
    fprintf(fmageren,"mag_f = [");
    fclose(fmageren); 
  
    sprintf(flogeren_name,"Log2Max_mcs%d_rb%d_chanMod%d_nframes%d_chanReal%d.m",mcs,nb_rb,chMod,n_frames,n_ch_rlz);
    flogeren = fopen(flogeren_name,"a+");
    fprintf(flogeren,"mag_f = [");
    fclose(flogeren); 
  }
  /*
    sprintf(ftxlev_name,"txlevel_mcs%d_rb%d_chanMod%d_nframes%d_chanReal%d.m",mcs,nb_rb,chMod,n_frames,n_ch_rlz);
    ftxlev = fopen(ftxlev_name,"a+");
    fprintf(ftxlev,"txlev = [");
    fclose(ftexlv); 
  */
  
  if(abstx){
    // CSV file 
    sprintf(csv_fname,"EULdataout_tx%d_mcs%d_nbrb%d_chan%d_nsimus%d_eren.m",transmission_mode,mcs,nb_rb,chMod,n_frames);
    csv_fdUL = fopen(csv_fname,"w");
    fprintf(csv_fdUL,"data_all%d=[",mcs);
  }
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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));
  }


#ifdef XFORMS
  fl_initialize (&argc, argv, NULL, 0, 0);
  form_enb = create_lte_phy_scope_enb();
  sprintf (title, "LTE PHY SCOPE eNB");
  fl_show_form (form_enb->lte_phy_scope_enb, FL_PLACE_HOTSPOT, FL_FULLBORDER, title);  
#endif

  PHY_vars_UE->lte_ue_pdcch_vars[0]->crnti = 14;

  PHY_vars_UE->lte_frame_parms.soundingrs_ul_config_common.srs_BandwidthConfig = 2;
  PHY_vars_UE->lte_frame_parms.soundingrs_ul_config_common.srs_SubframeConfig = 7;
  PHY_vars_UE->soundingrs_ul_config_dedicated[eNB_id].srs_Bandwidth = 0;
  PHY_vars_UE->soundingrs_ul_config_dedicated[eNB_id].transmissionComb = 0;
  PHY_vars_UE->soundingrs_ul_config_dedicated[eNB_id].freqDomainPosition = 0;

  PHY_vars_eNB->lte_frame_parms.soundingrs_ul_config_common.srs_BandwidthConfig = 2;
  PHY_vars_eNB->lte_frame_parms.soundingrs_ul_config_common.srs_SubframeConfig = 7;

  PHY_vars_eNB->soundingrs_ul_config_dedicated[UE_id].srs_ConfigIndex = 1;
  PHY_vars_eNB->soundingrs_ul_config_dedicated[UE_id].srs_Bandwidth = 0;
  PHY_vars_eNB->soundingrs_ul_config_dedicated[UE_id].transmissionComb = 0;
  PHY_vars_eNB->soundingrs_ul_config_dedicated[UE_id].freqDomainPosition = 0;
  PHY_vars_eNB->cooperation_flag = cooperation_flag;
  //  PHY_vars_eNB->eNB_UE_stats[0].SRS_parameters = PHY_vars_UE->SRS_parameters;

  PHY_vars_eNB->pusch_config_dedicated[UE_id].betaOffset_ACK_Index = beta_ACK;
  PHY_vars_eNB->pusch_config_dedicated[UE_id].betaOffset_RI_Index  = beta_RI;
  PHY_vars_eNB->pusch_config_dedicated[UE_id].betaOffset_CQI_Index = beta_CQI;
  PHY_vars_UE->pusch_config_dedicated[eNB_id].betaOffset_ACK_Index = beta_ACK;
  PHY_vars_UE->pusch_config_dedicated[eNB_id].betaOffset_RI_Index  = beta_RI;
  PHY_vars_UE->pusch_config_dedicated[eNB_id].betaOffset_CQI_Index = beta_CQI;
  
  printf("PUSCH Beta : ACK %f, RI %f, CQI %f\n",(double)beta_ack[beta_ACK]/8,(double)beta_ri[beta_RI]/8,(double)beta_cqi[beta_CQI]/8);

  UE2eNB = 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,
                                delay,
                                0);
  // set Doppler
  UE2eNB->max_Doppler = maxDoppler;

  // NN: N_RB_UL has to be defined in ulsim
  PHY_vars_eNB->ulsch_eNB[0] = new_eNB_ulsch(8,max_turbo_iterations,N_RB_DL,0);
  PHY_vars_UE->ulsch_ue[0]   = new_ue_ulsch(8,N_RB_DL,0);
  /*
  // Create transport channel structures for 2 transport blocks (MIMO)
  for (i=0;i<2;i++) {
    PHY_vars_eNB->dlsch_eNB[0][i] = new_eNB_dlsch(1,8,0);
    PHY_vars_UE->dlsch_ue[0][i]  = new_ue_dlsch(1,8,MAX_TURBO_ITERATIONS,0);
  
    if (!PHY_vars_eNB->dlsch_eNB[0][i]) {
      printf("Can't get eNB dlsch structures\n");
      exit(-1);
    }
    
    if (!PHY_vars_UE->dlsch_ue[0][i]) {
      printf("Can't get ue dlsch structures\n");
      exit(-1);
    }
    
    PHY_vars_eNB->dlsch_eNB[0][i]->rnti = 14;
    PHY_vars_UE->dlsch_ue[0][i]->rnti   = 14;

  }
  */

  switch (PHY_vars_eNB->lte_frame_parms.N_RB_UL) {
  case 6:
    break;
  case 25:
    if (PHY_vars_eNB->lte_frame_parms.frame_type == TDD) {
      ((DCI0_5MHz_TDD_1_6_t*)&UL_alloc_pdu)->type    = 0;
      ((DCI0_5MHz_TDD_1_6_t*)&UL_alloc_pdu)->rballoc = computeRIV(PHY_vars_eNB->lte_frame_parms.N_RB_UL,first_rb,nb_rb);// 12 RBs from position 8
      printf("nb_rb %d/%d, rballoc %d (dci %x)\n",nb_rb,PHY_vars_eNB->lte_frame_parms.N_RB_UL,((DCI0_5MHz_TDD_1_6_t*)&UL_alloc_pdu)->rballoc,*(uint32_t *)&UL_alloc_pdu);
      ((DCI0_5MHz_TDD_1_6_t*)&UL_alloc_pdu)->mcs     = mcs;
      ((DCI0_5MHz_TDD_1_6_t*)&UL_alloc_pdu)->ndi     = 1;
      ((DCI0_5MHz_TDD_1_6_t*)&UL_alloc_pdu)->TPC     = 0;
      ((DCI0_5MHz_TDD_1_6_t*)&UL_alloc_pdu)->cqi_req = cqi_flag&1;
      ((DCI0_5MHz_TDD_1_6_t*)&UL_alloc_pdu)->cshift  = 0;
      ((DCI0_5MHz_TDD_1_6_t*)&UL_alloc_pdu)->dai     = 1;
    }
    else {
      ((DCI0_5MHz_FDD_t*)&UL_alloc_pdu)->type    = 0;
      ((DCI0_5MHz_FDD_t*)&UL_alloc_pdu)->rballoc = computeRIV(PHY_vars_eNB->lte_frame_parms.N_RB_UL,first_rb,nb_rb);// 12 RBs from position 8
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      printf("nb_rb %d/%d, rballoc %d (dci %x)\n",nb_rb,PHY_vars_eNB->lte_frame_parms.N_RB_UL,((DCI0_5MHz_FDD_t*)&UL_alloc_pdu)->rballoc,*(uint32_t *)&UL_alloc_pdu);
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      ((DCI0_5MHz_FDD_t*)&UL_alloc_pdu)->mcs     = mcs;
      ((DCI0_5MHz_FDD_t*)&UL_alloc_pdu)->ndi     = 1;
      ((DCI0_5MHz_FDD_t*)&UL_alloc_pdu)->TPC     = 0;
      ((DCI0_5MHz_FDD_t*)&UL_alloc_pdu)->cqi_req = cqi_flag&1;
      ((DCI0_5MHz_FDD_t*)&UL_alloc_pdu)->cshift  = 0;
    }
    break;
  case 50:
    if (PHY_vars_eNB->lte_frame_parms.frame_type == TDD) {
      ((DCI0_10MHz_TDD_1_6_t*)&UL_alloc_pdu)->type    = 0;
      ((DCI0_10MHz_TDD_1_6_t*)&UL_alloc_pdu)->rballoc = computeRIV(PHY_vars_eNB->lte_frame_parms.N_RB_UL,first_rb,nb_rb);// 12 RBs from position 8
      printf("nb_rb %d/%d, rballoc %d (dci %x)\n",nb_rb,PHY_vars_eNB->lte_frame_parms.N_RB_UL,((DCI0_10MHz_TDD_1_6_t*)&UL_alloc_pdu)->rballoc,*(uint32_t *)&UL_alloc_pdu);
      ((DCI0_10MHz_TDD_1_6_t*)&UL_alloc_pdu)->mcs     = mcs;
      ((DCI0_10MHz_TDD_1_6_t*)&UL_alloc_pdu)->ndi     = 1;
      ((DCI0_10MHz_TDD_1_6_t*)&UL_alloc_pdu)->TPC     = 0;
      ((DCI0_10MHz_TDD_1_6_t*)&UL_alloc_pdu)->cqi_req = cqi_flag&1;
      ((DCI0_10MHz_TDD_1_6_t*)&UL_alloc_pdu)->cshift  = 0;
      ((DCI0_10MHz_TDD_1_6_t*)&UL_alloc_pdu)->dai     = 1;
    }
    else {
      ((DCI0_10MHz_FDD_t*)&UL_alloc_pdu)->type    = 0;
      ((DCI0_10MHz_FDD_t*)&UL_alloc_pdu)->rballoc = computeRIV(PHY_vars_eNB->lte_frame_parms.N_RB_UL,first_rb,nb_rb);// 12 RBs from position 8
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      printf("nb_rb %d/%d, rballoc %d (dci %x)\n",nb_rb,PHY_vars_eNB->lte_frame_parms.N_RB_UL,((DCI0_10MHz_FDD_t*)&UL_alloc_pdu)->rballoc,*(uint32_t *)&UL_alloc_pdu);
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      ((DCI0_10MHz_FDD_t*)&UL_alloc_pdu)->mcs     = mcs;
      ((DCI0_10MHz_FDD_t*)&UL_alloc_pdu)->ndi     = 1;
      ((DCI0_10MHz_FDD_t*)&UL_alloc_pdu)->TPC     = 0;
      ((DCI0_10MHz_FDD_t*)&UL_alloc_pdu)->cqi_req = cqi_flag&1;
      ((DCI0_10MHz_FDD_t*)&UL_alloc_pdu)->cshift  = 0;
    }
    break;
  case 100:
    if (PHY_vars_eNB->lte_frame_parms.frame_type == TDD) {
      ((DCI0_20MHz_TDD_1_6_t*)&UL_alloc_pdu)->type    = 0;
      ((DCI0_20MHz_TDD_1_6_t*)&UL_alloc_pdu)->rballoc = computeRIV(PHY_vars_eNB->lte_frame_parms.N_RB_UL,first_rb,nb_rb);// 12 RBs from position 8
      printf("nb_rb %d/%d, rballoc %d (dci %x)\n",nb_rb,PHY_vars_eNB->lte_frame_parms.N_RB_UL,((DCI0_20MHz_TDD_1_6_t*)&UL_alloc_pdu)->rballoc,*(uint32_t *)&UL_alloc_pdu);
      ((DCI0_20MHz_TDD_1_6_t*)&UL_alloc_pdu)->mcs     = mcs;
      ((DCI0_20MHz_TDD_1_6_t*)&UL_alloc_pdu)->ndi     = 1;
      ((DCI0_20MHz_TDD_1_6_t*)&UL_alloc_pdu)->TPC     = 0;
      ((DCI0_20MHz_TDD_1_6_t*)&UL_alloc_pdu)->cqi_req = cqi_flag&1;
      ((DCI0_20MHz_TDD_1_6_t*)&UL_alloc_pdu)->cshift  = 0;
      ((DCI0_20MHz_TDD_1_6_t*)&UL_alloc_pdu)->dai     = 1;
    }
    else {
      ((DCI0_20MHz_FDD_t*)&UL_alloc_pdu)->type    = 0;
      ((DCI0_20MHz_FDD_t*)&UL_alloc_pdu)->rballoc = computeRIV(PHY_vars_eNB->lte_frame_parms.N_RB_UL,first_rb,nb_rb);// 12 RBs from position 8
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      printf("nb_rb %d/%d, rballoc %d (dci %x)\n",nb_rb,PHY_vars_eNB->lte_frame_parms.N_RB_UL,((DCI0_20MHz_FDD_t*)&UL_alloc_pdu)->rballoc,*(uint32_t *)&UL_alloc_pdu);
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      ((DCI0_20MHz_FDD_t*)&UL_alloc_pdu)->mcs     = mcs;
      ((DCI0_20MHz_FDD_t*)&UL_alloc_pdu)->ndi     = 1;
      ((DCI0_20MHz_FDD_t*)&UL_alloc_pdu)->TPC     = 0;
      ((DCI0_20MHz_FDD_t*)&UL_alloc_pdu)->cqi_req = cqi_flag&1;
      ((DCI0_20MHz_FDD_t*)&UL_alloc_pdu)->cshift  = 0;
    }
    break;
  default:
    break;
  }


  PHY_vars_UE->PHY_measurements.rank[0] = 0;
  PHY_vars_UE->transmission_mode[0] = 2;
  PHY_vars_UE->pucch_config_dedicated[0].tdd_AckNackFeedbackMode = bundling_flag == 1 ? bundling : multiplexing;
  PHY_vars_eNB->transmission_mode[0] = 2;
  PHY_vars_eNB->pucch_config_dedicated[0].tdd_AckNackFeedbackMode = bundling_flag == 1 ? bundling : multiplexing;
  PHY_vars_UE->lte_frame_parms.pusch_config_common.ul_ReferenceSignalsPUSCH.groupHoppingEnabled = 1;
  PHY_vars_eNB->lte_frame_parms.pusch_config_common.ul_ReferenceSignalsPUSCH.groupHoppingEnabled = 1;
  PHY_vars_UE->lte_frame_parms.pusch_config_common.ul_ReferenceSignalsPUSCH.sequenceHoppingEnabled = 0;
  PHY_vars_eNB->lte_frame_parms.pusch_config_common.ul_ReferenceSignalsPUSCH.sequenceHoppingEnabled = 0;
  PHY_vars_UE->lte_frame_parms.pusch_config_common.ul_ReferenceSignalsPUSCH.groupAssignmentPUSCH = 0;
  PHY_vars_eNB->lte_frame_parms.pusch_config_common.ul_ReferenceSignalsPUSCH.groupAssignmentPUSCH = 0;
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  PHY_vars_UE->frame=1;

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  for (sf=0;sf<10;sf++) { 
    PHY_vars_eNB->proc[sf].frame_tx=1; 
    PHY_vars_eNB->proc[sf].subframe_tx=sf;
    PHY_vars_eNB->proc[sf].frame_rx=1;
    PHY_vars_eNB->proc[sf].subframe_rx=sf;
  }
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  msg("Init UL hopping UE\n");
  init_ul_hopping(&PHY_vars_UE->lte_frame_parms);
  msg("Init UL hopping eNB\n");
  init_ul_hopping(&PHY_vars_eNB->lte_frame_parms);

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  PHY_vars_eNB->proc[subframe].frame_rx = PHY_vars_UE->frame;
  if (ul_subframe2pdcch_alloc_subframe(&PHY_vars_eNB->lte_frame_parms,subframe) > subframe) // allocation was in previous frame
    PHY_vars_eNB->proc[ul_subframe2pdcch_alloc_subframe(&PHY_vars_eNB->lte_frame_parms,subframe)].frame_tx = (PHY_vars_UE->frame-1)&1023;

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  generate_ue_ulsch_params_from_dci((void *)&UL_alloc_pdu,
				    14,
				    ul_subframe2pdcch_alloc_subframe(&PHY_vars_UE->lte_frame_parms,subframe),
				    format0,
				    PHY_vars_UE,
				    SI_RNTI,
				    0,
				    P_RNTI,
				    CBA_RNTI,
				    0,
				    srs_flag);

  //  printf("RIV %d\n",UL_alloc_pdu.rballoc);

  generate_eNB_ulsch_params_from_dci((void *)&UL_alloc_pdu,
				     14,
				     ul_subframe2pdcch_alloc_subframe(&PHY_vars_eNB->lte_frame_parms,subframe),
				     format0,
				     0,
				     PHY_vars_eNB,
				     SI_RNTI,
				     0,
				     P_RNTI,
				     CBA_RNTI,
				     srs_flag);




  
  
  for (ch_realization=0;ch_realization<n_ch_rlz;ch_realization++){
 
    /*
      if(abstx){
      int ulchestim_f[300*12];
      int ulchestim_t[2*(frame_parms->ofdm_symbol_size)];
      }
    */
	 
    if(abstx){
      printf("**********************Channel Realization Index = %d **************************\n", ch_realization);
      saving_bler=1;
    }
	

    if ((subframe>5) || (subframe < 4))
      PHY_vars_UE->frame++;
 
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    for (SNR=snr0;SNR<snr1;SNR+=input_snr_step) {
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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;
      cqi_errors=0;
      ack_errors=0;
      cqi_crc_falsepositives=0;
      cqi_crc_falsenegatives=0;
      round=0;
	
      //randominit(0);

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      harq_pid = subframe2harq_pid(&PHY_vars_UE->lte_frame_parms,PHY_vars_UE->frame,subframe);
      //      printf("UL frame %d/subframe %d, harq_pid %d\n",PHY_vars_UE->frame,subframe,harq_pid);
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      if (input_fdUL == NULL) {
	input_buffer_length = PHY_vars_UE->ulsch_ue[0]->harq_processes[harq_pid]->TBS/8;
	input_buffer = (unsigned char *)malloc(input_buffer_length+4);

	if (n_frames == 1) {
	  trch_out_fdUL= fopen("ulsch_trchUL.txt","w");
	  for (i=0;i<input_buffer_length;i++) {
	    input_buffer[i] = taus()&0xff;
	    for (j=0;j<8;j++)
	      fprintf(trch_out_fdUL,"%d\n",(input_buffer[i]>>(7-j))&1);
	  }
	  fclose(trch_out_fdUL);
	}
	else {
	  for (i=0;i<input_buffer_length;i++)
	    input_buffer[i] = taus()&0xff;
	}
      }
      else {
	n_frames=1;
	i=0;
	while (!feof(input_fdUL)) {
	  fscanf(input_fdUL,"%s %s",input_val_str,input_val_str2);//&input_val1,&input_val2);
	
	  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("txsig0UL.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);
      
      }

      avg_iter = 0; iter_trials=0;
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      reset_meas(&PHY_vars_UE->phy_proc_tx);
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      reset_meas(&PHY_vars_UE->ofdm_mod_stats);
      reset_meas(&PHY_vars_UE->ulsch_modulation_stats);
      reset_meas(&PHY_vars_UE->ulsch_encoding_stats);
      reset_meas(&PHY_vars_UE->ulsch_interleaving_stats);
      reset_meas(&PHY_vars_UE->ulsch_rate_matching_stats);
      reset_meas(&PHY_vars_UE->ulsch_turbo_encoding_stats);
      reset_meas(&PHY_vars_UE->ulsch_segmentation_stats);
      reset_meas(&PHY_vars_UE->ulsch_multiplexing_stats);
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      reset_meas(&PHY_vars_eNB->phy_proc_rx);
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      reset_meas(&PHY_vars_eNB->ofdm_demod_stats);
      reset_meas(&PHY_vars_eNB->ulsch_channel_estimation_stats);
      reset_meas(&PHY_vars_eNB->ulsch_freq_offset_estimation_stats);
      reset_meas(&PHY_vars_eNB->rx_dft_stats);
      reset_meas(&PHY_vars_eNB->ulsch_decoding_stats);
      reset_meas(&PHY_vars_eNB->ulsch_turbo_decoding_stats);
      reset_meas(&PHY_vars_eNB->ulsch_deinterleaving_stats);
      reset_meas(&PHY_vars_eNB->ulsch_demultiplexing_stats);
      reset_meas(&PHY_vars_eNB->ulsch_rate_unmatching_stats);
      reset_meas(&PHY_vars_eNB->ulsch_tc_init_stats);    
      reset_meas(&PHY_vars_eNB->ulsch_tc_alpha_stats);
      reset_meas(&PHY_vars_eNB->ulsch_tc_beta_stats);
      reset_meas(&PHY_vars_eNB->ulsch_tc_gamma_stats);
      reset_meas(&PHY_vars_eNB->ulsch_tc_ext_stats);
      reset_meas(&PHY_vars_eNB->ulsch_tc_intl1_stats);
      reset_meas(&PHY_vars_eNB->ulsch_tc_intl2_stats);

      for (trials = 0;trials<n_frames;trials++) {
	//      printf("*");
	//        PHY_vars_UE->frame++;
	//        PHY_vars_eNB->frame++;
      
	fflush(stdout);
	round=0;
	while (round < 4) {
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	  PHY_vars_eNB->ulsch_eNB[0]->harq_processes[harq_pid]->round=round;
	  PHY_vars_UE->ulsch_ue[0]->harq_processes[harq_pid]->round=round;
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	  //	printf("Trial %d : Round %d ",trials,round);
	  round_trials[round]++;
	  if (round == 0) {
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	    //PHY_vars_eNB->ulsch_eNB[0]->harq_processes[harq_pid]->Ndi = 1;
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	    PHY_vars_eNB->ulsch_eNB[0]->harq_processes[harq_pid]->rvidx = round>>1;
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	    //PHY_vars_UE->ulsch_ue[0]->harq_processes[harq_pid]->Ndi = 1;
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	    PHY_vars_UE->ulsch_ue[0]->harq_processes[harq_pid]->rvidx = round>>1;
	  }
	  else {
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	    //PHY_vars_eNB->ulsch_eNB[0]->harq_processes[harq_pid]->Ndi = 0;
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	    PHY_vars_eNB->ulsch_eNB[0]->harq_processes[harq_pid]->rvidx = round>>1;
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	    //PHY_vars_UE->ulsch_ue[0]->harq_processes[harq_pid]->Ndi = 0;
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	    PHY_vars_UE->ulsch_ue[0]->harq_processes[harq_pid]->rvidx = round>>1;
	  }
	
	
	  /////////////////////
	  if (abstx) {
	    if (trials==0 && round==0 && SNR==snr0){  //generate a new channel
	      hold_channel = 0;
	      flagMag=0;
	    }
	    else{
	      hold_channel = 1;
	      flagMag = 1;
	    }
	  }
	  else
	    {
	      hold_channel = 0;
	      flagMag=1;
	    }
	  ///////////////////////////////////////
	
	  if (input_fdUL == NULL) {
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	    start_meas(&PHY_vars_UE->phy_proc_tx);

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#ifdef OFDMA_ULSCH
	    if (srs_flag)
	      generate_srs_tx(PHY_vars_UE,0,AMP,subframe);
	    generate_drs_pusch(PHY_vars_UE,0,AMP,subframe,first_rb,nb_rb,0);
	  
#else
	    if (srs_flag)
	      generate_srs_tx(PHY_vars_UE,0,AMP,subframe);
	    generate_drs_pusch(PHY_vars_UE,0,
			       AMP,subframe,
			       PHY_vars_UE->ulsch_ue[0]->harq_processes[harq_pid]->first_rb,
			       PHY_vars_UE->ulsch_ue[0]->harq_processes[harq_pid]->nb_rb,
			       0);
#endif	

	    if ((cqi_flag == 1) && (n_frames == 1) ) {
	      printf("CQI information (O %d) %d %d\n",PHY_vars_UE->ulsch_ue[0]->O,
		     PHY_vars_UE->ulsch_ue[0]->o[0],PHY_vars_UE->ulsch_ue[0]->o[1]);
	      print_CQI(PHY_vars_UE->ulsch_ue[0]->o,PHY_vars_UE->ulsch_ue[0]->uci_format,0);
	    }

	    PHY_vars_UE->ulsch_ue[0]->o_ACK[0] = taus()&1;

	    start_meas(&PHY_vars_UE->ulsch_encoding_stats);	      
	    if (ulsch_encoding(input_buffer,
			       PHY_vars_UE,
			       harq_pid,
			       eNB_id,
			       2, // transmission mode
			       control_only_flag,
			       1// Nbundled
			       )==-1) {
	      printf("ulsim.c Problem with ulsch_encoding\n");
	      exit(-1);
	    }
	    stop_meas(&PHY_vars_UE->ulsch_encoding_stats);

	    start_meas(&PHY_vars_UE->ulsch_modulation_stats);	      	      	  
#ifdef OFDMA_ULSCH
	    ulsch_modulation(PHY_vars_UE->lte_ue_common_vars.txdataF,AMP,
			     PHY_vars_UE->frame,subframe,&PHY_vars_UE->lte_frame_parms,PHY_vars_UE->ulsch_ue[0]);
#else  
	    //	  printf("Generating PUSCH in subframe %d with amp %d, nb_rb %d\n",subframe,AMP,nb_rb);
	    ulsch_modulation(PHY_vars_UE->lte_ue_common_vars.txdataF,AMP,
			     PHY_vars_UE->frame,subframe,&PHY_vars_UE->lte_frame_parms,
			     PHY_vars_UE->ulsch_ue[0]);
#endif
	    stop_meas(&PHY_vars_UE->ulsch_modulation_stats);	      	      	  
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	    if (n_frames==1) {
	      write_output("txsigF0UL.m","txsF0", &PHY_vars_UE->lte_ue_common_vars.txdataF[0][PHY_vars_eNB->lte_frame_parms.ofdm_symbol_size*nsymb*subframe],PHY_vars_eNB->lte_frame_parms.ofdm_symbol_size*nsymb,1,1);
	      //write_output("txsigF1.m","txsF1", PHY_vars_UE->lte_ue_common_vars.txdataF[0],FRAME_LENGTH_COMPLEX_SAMPLES_NO_PREFIX,1,1);          
	    }
	    tx_lev=0;
	    start_meas(&PHY_vars_UE->ofdm_mod_stats);	      	      	  
	    for (aa=0; aa<1; aa++) {
	      if (frame_parms->Ncp == 1) 
		PHY_ofdm_mod(&PHY_vars_UE->lte_ue_common_vars.txdataF[aa][subframe*nsymb*OFDM_SYMBOL_SIZE_COMPLEX_SAMPLES_NO_PREFIX],        // input
			     &txdata[aa][PHY_vars_eNB->lte_frame_parms.samples_per_tti*subframe],         // output
			     PHY_vars_UE->lte_frame_parms.log2_symbol_size,                // log2_fft_size
			     nsymb,                 // number of symbols
			     PHY_vars_UE->lte_frame_parms.nb_prefix_samples,               // number of prefix samples
			     PHY_vars_UE->lte_frame_parms.twiddle_ifft,  // IFFT twiddle factors
			     PHY_vars_UE->lte_frame_parms.rev,           // bit-reversal permutation
			     CYCLIC_PREFIX);
	      else
		normal_prefix_mod(&PHY_vars_UE->lte_ue_common_vars.txdataF[aa][subframe*nsymb*OFDM_SYMBOL_SIZE_COMPLEX_SAMPLES_NO_PREFIX],
				  &txdata[aa][PHY_vars_eNB->lte_frame_parms.samples_per_tti*subframe],
				  nsymb,
				  frame_parms);
	    
#ifndef OFDMA_ULSCH
	      apply_7_5_kHz(PHY_vars_UE,PHY_vars_UE->lte_ue_common_vars.txdata[aa],subframe<<1);
	      apply_7_5_kHz(PHY_vars_UE,PHY_vars_UE->lte_ue_common_vars.txdata[aa],1+(subframe<<1));
#endif
	    
	      stop_meas(&PHY_vars_UE->ofdm_mod_stats);	      	      
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	      stop_meas(&PHY_vars_UE->phy_proc_tx); 
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	      tx_lev += signal_energy(&txdata[aa][PHY_vars_eNB->lte_frame_parms.samples_per_tti*subframe],
				      PHY_vars_eNB->lte_frame_parms.samples_per_tti);
	
	    }
	  }  // input_fd == NULL 


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	  tx_lev_dB = (unsigned int) dB_fixed_times10(tx_lev);
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	  if (n_frames==1) {	
	    write_output("txsig0UL.m","txs0", &txdata[0][PHY_vars_eNB->lte_frame_parms.samples_per_tti*subframe],2*frame_parms->samples_per_tti,1,1);
	    //        write_output("txsig1UL.m","txs1", &txdata[1][PHY_vars_eNB->lte_frame_parms.samples_per_tti*subframe],2*frame_parms->samples_per_tti,1,1);
	  }
		
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	  //AWGN
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	  //Set target wideband RX noise level to N0
	  sigma2_dB = N0;//10*log10((double)tx_lev)  +10*log10(PHY_vars_UE->lte_frame_parms.ofdm_symbol_size/(PHY_vars_UE->lte_frame_parms.N_RB_DL*12)) - SNR;
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	  sigma2 = pow(10,sigma2_dB/10);

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	  // compute tx_gain to achieve target SNR (per resource element!)
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	  tx_gain = sqrt(pow(10.0,.1*(N0+SNR))*(nb_rb*12/(double)PHY_vars_UE->lte_frame_parms.ofdm_symbol_size)/(double)tx_lev);
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	  if (n_frames==1)
	    printf("tx_lev = %d (%d.%d dB,%f), gain %f\n",tx_lev,tx_lev_dB/10,tx_lev_dB,10*log10((double)tx_lev),10*log10(tx_gain));
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	  // fill measurement symbol (19) with noise      
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	  for (i=0;i<OFDM_SYMBOL_SIZE_COMPLEX_SAMPLES;i++) {
	    for (aa=0;aa<PHY_vars_eNB->lte_frame_parms.nb_antennas_rx;aa++) {
	    
	      ((short*) &PHY_vars_eNB->lte_eNB_common_vars.rxdata[0][aa][(frame_parms->samples_per_tti<<1) -frame_parms->ofdm_symbol_size])[2*i] = (short) ((sqrt(sigma2/2)*gaussdouble(0.0,1.0)));
	      ((short*) &PHY_vars_eNB->lte_eNB_common_vars.rxdata[0][aa][(frame_parms->samples_per_tti<<1) -frame_parms->ofdm_symbol_size])[2*i+1] = (short) ((sqrt(sigma2/2)*gaussdouble(0.0,1.0)));
	    }
	  }

	  // multipath channel
      
	  for (i=0;i<PHY_vars_eNB->lte_frame_parms.samples_per_tti;i++) {
	    for (aa=0;aa<1;aa++) {
	      s_re[aa][i] = ((double)(((short *)&txdata[aa][PHY_vars_eNB->lte_frame_parms.samples_per_tti*subframe]))[(i<<1)]);
	      s_im[aa][i] = ((double)(((short *)&txdata[aa][PHY_vars_eNB->lte_frame_parms.samples_per_tti*subframe]))[(i<<1)+1]);
	    }
	  }
      
    	  if (awgn_flag == 0) {	
	    if (UE2eNB->max_Doppler == 0) {
	      multipath_channel(UE2eNB,s_re,s_im,r_re,r_im,
				PHY_vars_eNB->lte_frame_parms.samples_per_tti,hold_channel);
	    } else {
	      multipath_tv_channel(UE2eNB,s_re,s_im,r_re,r_im,
				   2*PHY_vars_eNB->lte_frame_parms.samples_per_tti,hold_channel);
	    }
	  }
		  
	  if(abstx){
	    if(saving_bler==0)
	      if (trials==0 && round==0) {
		// calculate freq domain representation to compute SINR
		freq_channel(UE2eNB, N_RB_DL,12*N_RB_DL + 1);
	     
		// snr=pow(10.0,.1*SNR);
		fprintf(csv_fdUL,"%f,%d,%d,%f,%f,%f,",SNR,tx_lev,tx_lev_dB,sigma2_dB,tx_gain,SNR2);
		//fprintf(csv_fdUL,"%f,",SNR);
		for (u=0;u<12*nb_rb;u++){
		  for (aarx=0;aarx<UE2eNB->nb_rx;aarx++) {
		    for (aatx=0;aatx<UE2eNB->nb_tx;aatx++) {
		      // abs_channel = (eNB2UE->chF[aarx+(aatx*eNB2UE->nb_rx)][u].x*eNB2UE->chF[aarx+(aatx*eNB2UE->nb_rx)][u].x + eNB2UE->chF[aarx+(aatx*eNB2UE->nb_rx)][u].y*eNB2UE->chF[aarx+(aatx*eNB2UE->nb_rx)][u].y);
		      channelx = UE2eNB->chF[aarx+(aatx*UE2eNB->nb_rx)][u].x;
		      channely = UE2eNB->chF[aarx+(aatx*UE2eNB->nb_rx)][u].y;
		      // if(transmission_mode==5){
		      fprintf(csv_fdUL,"%e+i*(%e),",channelx,channely);
		      // }
		      // else{
		      //	pilot_sinr = 10*log10(snr*abs_channel);
		      //	fprintf(csv_fd,"%e,",pilot_sinr);
		      // }
		    }
		  }
		}
	      }
	  }
	
	  if (n_frames==1)
	    printf("Sigma2 %f (sigma2_dB %f), tx_gain %f (%f dB)\n",sigma2,sigma2_dB,tx_gain,20*log10(tx_gain));

	  for (i=0; i<PHY_vars_eNB->lte_frame_parms.samples_per_tti; i++) {
	    for (aa=0;aa<PHY_vars_eNB->lte_frame_parms.nb_antennas_rx;aa++) {
	      ((short*) &PHY_vars_eNB->lte_eNB_common_vars.rxdata[0][aa][PHY_vars_eNB->lte_frame_parms.samples_per_tti*subframe])[2*i] = (short) ((tx_gain*r_re[aa][i]) + sqrt(sigma2/2)*gaussdouble(0.0,1.0));
	      ((short*) &PHY_vars_eNB->lte_eNB_common_vars.rxdata[0][aa][PHY_vars_eNB->lte_frame_parms.samples_per_tti*subframe])[2*i+1] = (short) ((tx_gain*r_im[aa][i]) + (iqim*tx_gain*r_re[aa][i]) + sqrt(sigma2/2)*gaussdouble(0.0,1.0));
	    }
	  }    

	  if (n_frames==1) {
	    printf("rx_level Null symbol %f\n",10*log10((double)signal_energy((int*)&PHY_vars_eNB->lte_eNB_common_vars.rxdata[0][0][(PHY_vars_eNB->lte_frame_parms.samples_per_tti<<1) -PHY_vars_eNB->lte_frame_parms.ofdm_symbol_size],OFDM_SYMBOL_SIZE_COMPLEX_SAMPLES/2)));
	    printf("rx_level data symbol %f\n",10*log10(signal_energy((int*)&PHY_vars_eNB->lte_eNB_common_vars.rxdata[0][0][160+(PHY_vars_eNB->lte_frame_parms.samples_per_tti*subframe)],OFDM_SYMBOL_SIZE_COMPLEX_SAMPLES/2)));
	  }

	  SNRmeas = 10*log10(((double)signal_energy((int*)&PHY_vars_eNB->lte_eNB_common_vars.rxdata[0][0][160+(PHY_vars_eNB->lte_frame_parms.samples_per_tti*subframe)],OFDM_SYMBOL_SIZE_COMPLEX_SAMPLES/2))/((double)signal_energy((int*)&PHY_vars_eNB->lte_eNB_common_vars.rxdata[0][0][(PHY_vars_eNB->lte_frame_parms.samples_per_tti<<1) -PHY_vars_eNB->lte_frame_parms.ofdm_symbol_size],OFDM_SYMBOL_SIZE_COMPLEX_SAMPLES/2)) - 1)+10*log10(PHY_vars_eNB->lte_frame_parms.N_RB_UL/nb_rb);
      
	  if (n_frames==1) {
	    printf("SNRmeas %f\n",SNRmeas);
      
	    //	  write_output("rxsig0UL.m","rxs0", &PHY_vars_eNB->lte_eNB_common_vars.rxdata[0][0][PHY_vars_eNB->lte_frame_parms.samples_per_tti*subframe],PHY_vars_eNB->lte_frame_parms.samples_per_tti,1,1);
	    //write_output("rxsig1UL.m","rxs1", &PHY_vars_eNB->lte_eNB_common_vars.rxdata[0][0][PHY_vars_eNB->lte_frame_parms.samples_per_tti*subframe],PHY_vars_eNB->lte_frame_parms.samples_per_tti,1,1);
	  }
#ifndef OFDMA_ULSCH
	  remove_7_5_kHz(PHY_vars_eNB,subframe<<1);
	  remove_7_5_kHz(PHY_vars_eNB,1+(subframe<<1));
	  //	write_output("rxsig0_75.m","rxs0_75", &PHY_vars_eNB->lte_eNB_common_vars.rxdata[0][0][PHY_vars_eNB->lte_frame_parms.samples_per_tti*subframe],PHY_vars_eNB->lte_frame_parms.samples_per_tti,1,1);
	  //	write_output("rxsig1_75.m","rxs1_75", &PHY_vars_eNB->lte_eNB_common_vars.rxdata[0][0][PHY_vars_eNB->lte_frame_parms.samples_per_tti*subframe],PHY_vars_eNB->lte_frame_parms.samples_per_tti,1,1);

#endif      

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	  start_meas(&PHY_vars_eNB->phy_proc_rx);
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	  start_meas(&PHY_vars_eNB->ofdm_demod_stats);	      	      	  
	  lte_eNB_I0_measurements(PHY_vars_eNB,
				  0,
				  1);

	  for (l=subframe*PHY_vars_UE->lte_frame_parms.symbols_per_tti;l<((1+subframe)*PHY_vars_UE->lte_frame_parms.symbols_per_tti);l++) {
	
	    slot_fep_ul(&PHY_vars_eNB->lte_frame_parms,
			&PHY_vars_eNB->lte_eNB_common_vars,
			l%(PHY_vars_eNB->lte_frame_parms.symbols_per_tti/2),
			l/(PHY_vars_eNB->lte_frame_parms.symbols_per_tti/2),
			0,
			0);
	  }
	  stop_meas(&PHY_vars_eNB->ofdm_demod_stats);	      
	      	  
	  PHY_vars_eNB->ulsch_eNB[0]->cyclicShift = cyclic_shift;// cyclic shift for DMRS
	  if(abstx){
	    namepointer_log2 = &flogeren_name;
	    namepointer_chMag = &fmageren_name;
	    //namepointer_txlev = &ftxlev;
	  }

	  start_meas(&PHY_vars_eNB->ulsch_demodulation_stats);	      	      	  
	  rx_ulsch(PHY_vars_eNB,
		   subframe,
		   0,  // this is the effective sector id
		   0,  // this is the UE_id
		   PHY_vars_eNB->ulsch_eNB,
		   cooperation_flag);
	  stop_meas(&PHY_vars_eNB->ulsch_demodulation_stats);	      	      	  
	
	  if(abstx){
	    namepointer_chMag = NULL;
	
	    if(trials==0 && round==0 && SNR==snr0)
	      {
		char* namepointer ;
		namepointer = &fperen_name;
		write_output(namepointer, "xxx" ,PHY_vars_eNB->lte_eNB_pusch_vars[0]->drs_ch_estimates[0][0],300,1,10);
		namepointer = NULL ;
		// flagMag = 1;
	      }
	  }
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	  ///////
	
	  start_meas(&PHY_vars_eNB->ulsch_decoding_stats);
	  ret= ulsch_decoding(PHY_vars_eNB,
			      0, // UE_id
			      subframe,
			      control_only_flag,
			      1,  // Nbundled 
			      llr8_flag);
	  stop_meas(&PHY_vars_eNB->ulsch_decoding_stats);
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	  stop_meas(&PHY_vars_eNB->phy_proc_rx);
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	  if (cqi_flag > 0) {
	    cqi_error = 0;
	    if (PHY_vars_eNB->ulsch_eNB[0]->Or1 < 32) {
	      for (i=2;i<4;i++) {
		//	      	      printf("cqi %d : %d (%d)\n",i,PHY_vars_eNB->ulsch_eNB[0]->o[i],PHY_vars_UE->ulsch_ue[0]->o[i]);
		if (PHY_vars_eNB->ulsch_eNB[0]->o[i] != PHY_vars_UE->ulsch_ue[0]->o[i])
		  cqi_error = 1;
	      }
	    }
	    else {

	    }
	    if (cqi_error == 1) {
	      cqi_errors++;
	      if (PHY_vars_eNB->ulsch_eNB[0]->cqi_crc_status == 1)
		cqi_crc_falsepositives++;
	    }
	    else {
	      if (PHY_vars_eNB->ulsch_eNB[0]->cqi_crc_status == 0)
		cqi_crc_falsenegatives++;
	    }
	  }
	  if (PHY_vars_eNB->ulsch_eNB[0]->o_ACK[0] != PHY_vars_UE->ulsch_ue[0]->o_ACK[0])
	    ack_errors++;
	  //    msg("ulsch_coding: O[%d] %d\n",i,o_flip[i]);
      
	
	  if (ret <= PHY_vars_eNB->ulsch_eNB[0]->max_turbo_iterations) {

	    avg_iter += ret;
	    iter_trials++;

	    if (n_frames==1) {
	      printf("No ULSCH errors found, o_ACK[0]= %d, cqi_crc_status=%d\n",PHY_vars_eNB->ulsch_eNB[0]->o_ACK[0],PHY_vars_eNB->ulsch_eNB[0]->cqi_crc_status);
	      if (PHY_vars_eNB->ulsch_eNB[0]->cqi_crc_status==1)
		print_CQI(PHY_vars_eNB->ulsch_eNB[0]->o,PHY_vars_eNB->ulsch_eNB[0]->uci_format,0);
	      dump_ulsch(PHY_vars_eNB,subframe,0);
	      exit(-1);
	    }
	    round=5;
	  }	
	  else {
	    avg_iter += ret-1;
	    iter_trials++;

	    errs[round]++;
	    if (n_frames==1) {
	      printf("ULSCH errors found o_ACK[0]= %d\n",PHY_vars_eNB->ulsch_eNB[0]->o_ACK[0]);

	      for (s=0;s<PHY_vars_eNB->ulsch_eNB[0]->harq_processes[harq_pid]->C;s++) {
		if (s<PHY_vars_eNB->ulsch_eNB[0]->harq_processes[harq_pid]->Cminus)
		  Kr = PHY_vars_eNB->ulsch_eNB[0]->harq_processes[harq_pid]->Kminus;
		else
		  Kr = PHY_vars_eNB->ulsch_eNB[0]->harq_processes[harq_pid]->Kplus;
	      
		Kr_bytes = Kr>>3;
	      
		printf("Decoded_output (Segment %d):\n",s);
		for (i=0;i<Kr_bytes;i++)
		  printf("%d : %x (%x)\n",i,PHY_vars_eNB->ulsch_eNB[0]->harq_processes[harq_pid]->c[s][i],PHY_vars_eNB->ulsch_eNB[0]->harq_processes[harq_pid]->c[s][i]^PHY_vars_UE->ulsch_ue[0]->harq_processes[harq_pid]->c[s][i]);
	      }
	      dump_ulsch(PHY_vars_eNB,subframe,0);	    
	      exit(-1);
	    }
	    //	    printf("round %d errors %d/%d\n",round,errs[round],trials);
	    round++;
	
	    if (n_frames==1) {
	      printf("ULSCH in error in round %d\n",round);
	    }
	  }  // ulsch error
	} // round
          
	//      printf("\n");
	if ((errs[0]>=100) && (trials>(n_frames/2)))
	  break;
#ifdef XFORMS
	phy_scope_eNB(form_enb,PHY_vars_eNB,0);
#endif       
      }   //trials

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      printf("\n**********rb: %d ***mcs : %d  *********SNR = %f dB (%f): TX %d dB (gain %f dB), N0W %f dB, I0 %d dB [ (%d,%d) dB / (%d,%d) dB ]**************************\n",
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	     nb_rb,mcs,SNR,SNR2,
	     tx_lev_dB,
	     20*log10(tx_gain),
	     (double)N0,
	     PHY_vars_eNB->PHY_measurements_eNB[0].n0_power_tot_dB,
	     dB_fixed(PHY_vars_eNB->lte_eNB_pusch_vars[0]->ulsch_power[0]),
	     dB_fixed(PHY_vars_eNB->lte_eNB_pusch_vars[0]->ulsch_power[1]),
	     PHY_vars_eNB->PHY_measurements_eNB->n0_power_dB[0],
	     PHY_vars_eNB->PHY_measurements_eNB->n0_power_dB[1]);
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      effective_rate = ((double)(round_trials[0])/((double)round_trials[0] + round_trials[1] + round_trials[2] + round_trials[3]));
  
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      printf("Errors (%d/%d %d/%d %d/%d %d/%d), Pe = (%e,%e,%e,%e) => effective rate %f (%3.1f%%,%f,%f), normalized delay %f (%f)\n",
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	     errs[0],
	     round_trials[0],
	     errs[1],
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	     round_trials[1],
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	     errs[2],
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	     round_trials[2],
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	     errs[3],
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	     round_trials[3],
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	     (double)errs[0]/(round_trials[0]),
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	     (double)errs[1]/(round_trials[0]),
	     (double)errs[2]/(round_trials[0]),
	     (double)errs[3]/(round_trials[0]),
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	     rate*effective_rate,
	     100*effective_rate,
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	     rate,
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	     rate*get_Qm(mcs),
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	     (1.0*(round_trials[0]-errs[0])+2.0*(round_trials[1]-errs[1])+3.0*(round_trials[2]-errs[2])+4.0*(round_trials[3]-errs[3]))/((double)round_trials[0])/(double)PHY_vars_eNB->ulsch_eNB[0]->harq_processes[harq_pid]->TBS,
	     (1.0*(round_trials[0]-errs[0])+2.0*(round_trials[1]-errs[1])+3.0*(round_trials[2]-errs[2])+4.0*(round_trials[3]-errs[3]))/((double)round_trials[0]));
    
      if (cqi_flag >0) {
	printf("CQI errors %d/%d,false positives %d/%d, CQI false negatives %d/%d\n",
	       cqi_errors,round_trials[0]+round_trials[1]+round_trials[2]+round_trials[3],
	       cqi_crc_falsepositives,round_trials[0]+round_trials[1]+round_trials[2]+round_trials[3],
	       cqi_crc_falsenegatives,round_trials[0]+round_trials[1]+round_trials[2]+round_trials[3]);
      }
1304
      if (PHY_vars_eNB->ulsch_eNB[0]->o_ACK[0] > 0) 
1305 1306
	printf("ACK/NAK errors %d/%d\n",ack_errors,round_trials[0]+round_trials[1]+round_trials[2]+round_trials[3]);

1307 1308 1309 1310 1311 1312 1313 1314 1315 1316 1317 1318 1319 1320 1321 1322

      fprintf(bler_fd,"%f;%d;%d;%d;%f;%d;%d;%d;%d;%d;%d;%d;%d\n",
	      SNR,
	      mcs,
	      nb_rb,
	      PHY_vars_eNB->ulsch_eNB[0]->harq_processes[harq_pid]->TBS,
	      rate,
	      errs[0],
	      round_trials[0],
	      errs[1],
	      round_trials[1],
	      errs[2],
	      round_trials[2],
	      errs[3],
	      round_trials[3]);

1323 1324 1325

      if (dump_perf==1) {
	printf("UE TX function statistics (per 1ms subframe)\n\n");
1326
	printf("Total PHY proc tx                 :%f us (%d trials)\n",(double)PHY_vars_UE->phy_proc_tx.diff/PHY_vars_UE->phy_proc_tx.trials/cpu_freq_GHz/1000.0,PHY_vars_UE->phy_proc_tx.trials);
1327 1328 1329 1330 1331 1332 1333 1334 1335 1336
	printf("OFDM_mod time                     :%f us (%d trials)\n",(double)PHY_vars_UE->ofdm_mod_stats.diff/PHY_vars_UE->ofdm_mod_stats.trials/cpu_freq_GHz/1000.0,PHY_vars_UE->ofdm_mod_stats.trials);
	printf("ULSCH modulation time             :%f us (%d trials)\n",(double)PHY_vars_UE->ulsch_modulation_stats.diff/PHY_vars_UE->ulsch_modulation_stats.trials/cpu_freq_GHz/1000.0,PHY_vars_UE->ulsch_modulation_stats.trials);
	printf("ULSCH encoding time               :%f us (%d trials)\n",(double)PHY_vars_UE->ulsch_encoding_stats.diff/PHY_vars_UE->ulsch_encoding_stats.trials/cpu_freq_GHz/1000.0,PHY_vars_UE->ulsch_encoding_stats.trials);
	printf("|__ ULSCH segmentation time           :%f us (%d trials)\n",(double)PHY_vars_UE->ulsch_segmentation_stats.diff/PHY_vars_UE->ulsch_segmentation_stats.trials/cpu_freq_GHz/1000.0,PHY_vars_UE->ulsch_segmentation_stats.trials);
	printf("|__ ULSCH turbo encoding time         :%f us (%d trials)\n",((double)PHY_vars_UE->ulsch_turbo_encoding_stats.trials/PHY_vars_UE->ulsch_encoding_stats.trials)*(double)PHY_vars_UE->ulsch_turbo_encoding_stats.diff/PHY_vars_UE->ulsch_turbo_encoding_stats.trials/cpu_freq_GHz/1000.0,PHY_vars_UE->ulsch_turbo_encoding_stats.trials);
	printf("|__ ULSCH rate-matching time          :%f us (%d trials)\n",((double)PHY_vars_UE->ulsch_rate_matching_stats.trials/PHY_vars_UE->ulsch_encoding_stats.trials)*(double)PHY_vars_UE->ulsch_rate_matching_stats.diff/PHY_vars_UE->ulsch_rate_matching_stats.trials/cpu_freq_GHz/1000.0,PHY_vars_UE->ulsch_rate_matching_stats.trials);
	printf("|__ ULSCH sub-block interleaving time :%f us (%d trials)\n",((double)PHY_vars_UE->ulsch_interleaving_stats.trials/PHY_vars_UE->ulsch_encoding_stats.trials)*(double)PHY_vars_UE->ulsch_interleaving_stats.diff/PHY_vars_UE->ulsch_interleaving_stats.trials/cpu_freq_GHz/1000.0,PHY_vars_UE->ulsch_interleaving_stats.trials);
	printf("|__ ULSCH multiplexing time           :%f us (%d trials)\n",((double)PHY_vars_UE->ulsch_multiplexing_stats.trials/PHY_vars_UE->ulsch_encoding_stats.trials)*(double)PHY_vars_UE->ulsch_multiplexing_stats.diff/PHY_vars_UE->ulsch_multiplexing_stats.trials/cpu_freq_GHz/1000.0,PHY_vars_UE->ulsch_multiplexing_stats.trials);

	printf("\n\neNB RX function statistics (per 1ms subframe)\n\n");
1337
	printf("Total PHY proc rx                                   :%f us (%d trials)\n",(double)PHY_vars_eNB->phy_proc_rx.diff/PHY_vars_eNB->phy_proc_rx.trials/cpu_freq_GHz/1000.0,PHY_vars_eNB->phy_proc_rx.trials);
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
	printf("OFDM_demod time                   :%f us (%d trials)\n",(double)PHY_vars_eNB->ofdm_demod_stats.diff/PHY_vars_eNB->ofdm_demod_stats.trials/cpu_freq_GHz/1000.0,PHY_vars_eNB->ofdm_demod_stats.trials);
	printf("ULSCH demodulation time           :%f us (%d trials)\n",(double)PHY_vars_eNB->ulsch_demodulation_stats.diff/PHY_vars_eNB->ulsch_demodulation_stats.trials/cpu_freq_GHz/1000.0,PHY_vars_eNB->ulsch_demodulation_stats.trials);
	printf("ULSCH Decoding time (%.2f Mbit/s, avg iter %f)      :%f us (%d trials, max %f)\n",
	       PHY_vars_UE->ulsch_ue[0]->harq_processes[harq_pid]->TBS/1000.0,(double)avg_iter/iter_trials,
	       (double)PHY_vars_eNB->ulsch_decoding_stats.diff/PHY_vars_eNB->ulsch_decoding_stats.trials/cpu_freq_GHz/1000.0,PHY_vars_eNB->ulsch_decoding_stats.trials, 
	       (double)PHY_vars_eNB->ulsch_decoding_stats.max/cpu_freq_GHz/1000.0);
	printf("|__ sub-block interleaving                          %f us (%d trials)\n",
	       (double)PHY_vars_eNB->ulsch_deinterleaving_stats.diff/PHY_vars_eNB->ulsch_deinterleaving_stats.trials/cpu_freq_GHz/1000.0,PHY_vars_eNB->ulsch_deinterleaving_stats.trials);
	printf("|__ demultiplexing                                  %f us (%d trials)\n",
	       (double)PHY_vars_eNB->ulsch_demultiplexing_stats.diff/PHY_vars_eNB->ulsch_demultiplexing_stats.trials/cpu_freq_GHz/1000.0,PHY_vars_eNB->ulsch_demultiplexing_stats.trials);
	printf("|__ rate-matching                                   %f us (%d trials)\n",
	       (double)PHY_vars_eNB->ulsch_rate_unmatching_stats.diff/PHY_vars_eNB->ulsch_rate_unmatching_stats.trials/cpu_freq_GHz/1000.0,PHY_vars_eNB->ulsch_rate_unmatching_stats.trials);
	printf("|__ turbo_decoder(%d bits)                              %f us (%d cycles, %d trials)\n",
	       PHY_vars_eNB->ulsch_eNB[0]->harq_processes[harq_pid]->Cminus ? PHY_vars_eNB->ulsch_eNB[0]->harq_processes[harq_pid]->Kminus : PHY_vars_eNB->ulsch_eNB[0]->harq_processes[harq_pid]->Kplus,
	       (double)PHY_vars_eNB->ulsch_turbo_decoding_stats.diff/PHY_vars_eNB->ulsch_turbo_decoding_stats.trials/cpu_freq_GHz/1000.0,
	       (int)((double)PHY_vars_eNB->ulsch_turbo_decoding_stats.diff/PHY_vars_eNB->ulsch_turbo_decoding_stats.trials),PHY_vars_eNB->ulsch_turbo_decoding_stats.trials);
	printf("    |__ init                                            %f us (cycles/iter %f, %d trials)\n",
	       (double)PHY_vars_eNB->ulsch_tc_init_stats.diff/PHY_vars_eNB->ulsch_tc_init_stats.trials/cpu_freq_GHz/1000.0,
	       (double)PHY_vars_eNB->ulsch_tc_init_stats.diff/PHY_vars_eNB->ulsch_tc_init_stats.trials/((double)avg_iter/iter_trials),
	       PHY_vars_eNB->ulsch_tc_init_stats.trials);
	printf("    |__ alpha                                           %f us (cycles/iter %f, %d trials)\n",
	       (double)PHY_vars_eNB->ulsch_tc_alpha_stats.diff/PHY_vars_eNB->ulsch_tc_alpha_stats.trials/cpu_freq_GHz/1000.0,
	       (double)PHY_vars_eNB->ulsch_tc_alpha_stats.diff/PHY_vars_eNB->ulsch_tc_alpha_stats.trials*2,
	       PHY_vars_eNB->ulsch_tc_alpha_stats.trials);
	printf("    |__ beta                                            %f us (cycles/iter %f,%d trials)\n",
	       (double)PHY_vars_eNB->ulsch_tc_beta_stats.diff/PHY_vars_eNB->ulsch_tc_beta_stats.trials/cpu_freq_GHz/1000.0,
	       (double)PHY_vars_eNB->ulsch_tc_beta_stats.diff/PHY_vars_eNB->ulsch_tc_beta_stats.trials*2,
	       PHY_vars_eNB->ulsch_tc_beta_stats.trials);
	printf("    |__ gamma                                           %f us (cycles/iter %f,%d trials)\n",
	       (double)PHY_vars_eNB->ulsch_tc_gamma_stats.diff/PHY_vars_eNB->ulsch_tc_gamma_stats.trials/cpu_freq_GHz/1000.0,
	       (double)PHY_vars_eNB->ulsch_tc_gamma_stats.diff/PHY_vars_eNB->ulsch_tc_gamma_stats.trials*2,
	       PHY_vars_eNB->ulsch_tc_gamma_stats.trials);
	printf("    |__ ext                                             %f us (cycles/iter %f,%d trials)\n",
	       (double)PHY_vars_eNB->ulsch_tc_ext_stats.diff/PHY_vars_eNB->ulsch_tc_ext_stats.trials/cpu_freq_GHz/1000.0,
	       (double)PHY_vars_eNB->ulsch_tc_ext_stats.diff/PHY_vars_eNB->ulsch_tc_ext_stats.trials*2,
	       PHY_vars_eNB->ulsch_tc_ext_stats.trials);
	printf("    |__ intl1                                           %f us (cycles/iter %f,%d trials)\n",
	       (double)PHY_vars_eNB->ulsch_tc_intl1_stats.diff/PHY_vars_eNB->ulsch_tc_intl1_stats.trials/cpu_freq_GHz/1000.0,
	       (double)PHY_vars_eNB->ulsch_tc_intl1_stats.diff/PHY_vars_eNB->ulsch_tc_intl1_stats.trials,
	       PHY_vars_eNB->ulsch_tc_intl1_stats.trials);
	printf("    |__ intl2+HD+CRC                                    %f us (cycles/iter %f,%d trials)\n",
	       (double)PHY_vars_eNB->ulsch_tc_intl2_stats.diff/PHY_vars_eNB->ulsch_tc_intl2_stats.trials/cpu_freq_GHz/1000.0,
	       (double)PHY_vars_eNB->ulsch_tc_intl2_stats.diff/PHY_vars_eNB->ulsch_tc_intl2_stats.trials,
	       PHY_vars_eNB->ulsch_tc_intl2_stats.trials);
      }

      if(abstx){ //ABSTRACTION         
	blerr= (double)errs[1]/(round_trials[1]);
	//printf("hata yok XX,");

	
	blerr = (double)errs[0]/(round_trials[0]);
	
	if(saving_bler==0)
	  fprintf(csv_fdUL,"%e;\n",blerr);
	//    printf("hata yok XX,");


	if(blerr<1)
	  saving_bler = 0;
	else saving_bler =1;

	 
      } //ABStraction
      
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 1442 1443 1444 1445 1446 1447 1448 1449 1450 1451 1452 1453 1454 1455 1456 1457 1458 1459 1460 1461 1462 1463 1464 1465 1466 1467 1468 1469
      if ( (test_perf != 0) && (100 * effective_rate > test_perf )) {
	fprintf(time_meas_fd,"SNR; MCS; TBS; rate; err0; trials0; err1; trials1; err2; trials2; err3; trials3\n");
  	fprintf(time_meas_fd,"%f;%d;%d;%f;%d;%d;%d;%d;%d;%d;%d;%d\n",
		SNR,
		mcs,
		PHY_vars_eNB->ulsch_eNB[0]->harq_processes[harq_pid]->TBS, 
		rate,
		errs[0],
		round_trials[0],
		errs[1],
		round_trials[1],
		errs[2],
		round_trials[2],
		errs[3],
		round_trials[3]);
	
	fprintf(time_meas_fd,"SNR; MCS; TBS; rate; err0; trials0; err1; trials1; err2; trials2; err3; trials3;ND;\n");
	fprintf(time_meas_fd,"%f;%d;%d;%f(%2.1f%%,%f);%d;%d;%d;%d;%d;%d;%d;%d;(%e,%e,%e,%e);%f(%f);\n",
		SNR,
		mcs,
		PHY_vars_eNB->ulsch_eNB[0]->harq_processes[harq_pid]->TBS, 
		rate*effective_rate,
		100*effective_rate,
		rate,
		errs[0],
		round_trials[0],
		errs[1],
		round_trials[1],
		errs[2],
		round_trials[2],
		errs[3],
		round_trials[3],
		(double)errs[0]/(round_trials[0]),
		(double)errs[1]/(round_trials[0]),
		(double)errs[2]/(round_trials[0]),
		(double)errs[3]/(round_trials[0]),
		(1.0*(round_trials[0]-errs[0])+2.0*(round_trials[1]-errs[1])+3.0*(round_trials[2]-errs[2])+4.0*(round_trials[3]-errs[3]))/((double)round_trials[0])/(double)PHY_vars_eNB->ulsch_eNB[0]->harq_processes[harq_pid]->TBS, 
		(1.0*(round_trials[0]-errs[0])+2.0*(round_trials[1]-errs[1])+3.0*(round_trials[2]-errs[2])+4.0*(round_trials[3]-errs[3]))/((double)round_trials[0]));

	fprintf(time_meas_fd,"UE_PROC_TX(%d); OFDM_MOD(%d); UL_MOD(%d); UL_ENC(%d); eNB_PROC_RX(%d); OFDM_DEMOD(%d); UL_DEMOD(%d); UL_DECOD(%d);\n",
		PHY_vars_UE->phy_proc_tx.trials,
		PHY_vars_UE->ofdm_mod_stats.trials,
		PHY_vars_UE->ulsch_modulation_stats.trials,
		PHY_vars_UE->ulsch_encoding_stats.trials,
		PHY_vars_eNB->phy_proc_rx.trials,
		PHY_vars_eNB->ofdm_demod_stats.trials,
		PHY_vars_eNB->ulsch_demodulation_stats.trials,
		PHY_vars_eNB->ulsch_decoding_stats.trials
		);
	fprintf(time_meas_fd,"%f;%f;%f;%f;%f;%f;%f;%f",
		get_time_meas_us(&PHY_vars_UE->phy_proc_tx),
		get_time_meas_us(&PHY_vars_UE->ofdm_mod_stats),
		get_time_meas_us(&PHY_vars_UE->ulsch_modulation_stats),
		get_time_meas_us(&PHY_vars_UE->ulsch_encoding_stats),
		get_time_meas_us(&PHY_vars_eNB->phy_proc_rx),
		get_time_meas_us(&PHY_vars_eNB->ofdm_demod_stats),
		get_time_meas_us(&PHY_vars_eNB->ulsch_demodulation_stats),
		get_time_meas_us(&PHY_vars_eNB->ulsch_decoding_stats)
		);
	
      	printf("[passed] effective rate : %f  (%2.1f%%,%f)): log and break \n",rate*effective_rate, 100*effective_rate, rate );
	break;
      } else if (test_perf !=0 ){
	printf("[continue] effective rate : %f  (%2.1f%%,%f)): increase snr \n",rate*effective_rate, 100*effective_rate, rate);
      }


1470 1471 1472 1473 1474 1475 1476 1477 1478 1479 1480
      if (((double)errs[0]/(round_trials[0]))<1e-2) 
	break;
    } // SNR	
  
    // 
  

    //write_output("chestim_f.m","chestf",PHY_vars_eNB->lte_eNB_pusch_vars[0]->drs_ch_estimates[0][0],300*12,2,1);
    // write_output("chestim_t.m","chestt",PHY_vars_eNB->lte_eNB_pusch_vars[0]->drs_ch_estimates_time[0][0], (frame_parms->ofdm_symbol_size)*2,2,1);
  
  }//ch realization	
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
  if(abstx){
    fperen = fopen(fperen_name,"a+");
    fprintf(fperen,"];\n");
    fclose(fperen);
    
    fmageren = fopen(fmageren_name,"a+");
    fprintf(fmageren,"];\n");
    fclose(fmageren);
  
    flogeren = fopen(flogeren_name,"a+");
    fprintf(flogeren,"];\n");
    fclose(flogeren);
  }
  
  // ftxlev = fopen(ftxlev_name,"a+");
  //fprintf(ftxlev,"];\n");
  //fclose(ftxlev);
 
  
  //	write_output("chestim_f_dene.m","chestf",ulchestim_f_all,300*12,2,1);*/

  if(abstx){// ABSTRACTION
    fprintf(csv_fdUL,"];");
    fclose(csv_fdUL);
  }
  fclose(bler_fd);
1508 1509
  if (test_perf !=0)
    fclose (time_meas_fd);
1510 1511 1512 1513 1514 1515 1516 1517 1518 1519 1520 1521 1522 1523 1524 1525 1526 1527 1528 1529 1530
  
  printf("Freeing channel I/O\n");
  for (i=0;i<2;i++) {
    free(s_re[i]);
    free(s_im[i]);
    free(r_re[i]);
    free(r_im[i]);
  }
  free(s_re);
  free(s_im);
  free(r_re);
  free(r_im);
  
  //  lte_sync_time_free();
  
  return(0);

}