ulsim.c

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    Copyright(c) 1999 - 2014 Eurecom

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    it under the terms of the GNU General Public License as published by
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/*! \file ulsim.c
 \brief Top-level DL simulator
 \author R. Knopp
 \date 2011 - 2014
 \version 0.1
 \company Eurecom
 \email: knopp@eurecom.fr
 \note
 \warning
*/

#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 "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];

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



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

/*the following parameters are used to control the processing times*/
double t_tx_max = -1000000000; /*!< \brief initial max process time for tx */
double t_rx_max = -1000000000; /*!< \brief initial max process time for rx */
double t_tx_min = 1000000000; /*!< \brief initial min process time for tx */
double t_rx_min = 1000000000; /*!< \brief initial min process time for tx */
int n_tx_dropped = 0; /*!< \brief initial max process time for tx */
int n_rx_dropped = 0; /*!< \brief initial max process time for rx */

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) {

  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;
  double input_snr_step=.2,snr_int=30;
  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;
  uint8_t extended_prefix_flag=0;
  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};
  uint8_t transmission_mode=1,n_rx=1,n_tx=1;
 
  FILE *bler_fd=NULL;
  char bler_fname[512];

  FILE *time_meas_fd=NULL;
  char time_meas_fname[256];
 
  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;
  FILE *csv_fdUL=NULL;

  FILE *fperen=NULL;
  char fperen_name[512];  
  
  FILE *fmageren=NULL;
  char fmageren_name[512];
  
  FILE *flogeren=NULL;
  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;

  uint8_t control_only_flag = 0;
  int delay = 0;	
  double maxDoppler = 0.0;	
  uint8_t srs_flag = 0;

  uint8_t N_RB_DL=25,osf=1;

  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;

  uint8_t N0=30;
  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;
  int test_perf=0;
  int dump_table=0;
  
  double effective_rate=0.0;
  char channel_model_input[10];
  
  uint8_t max_turbo_iterations=4;
  uint8_t llr8_flag=0;
  int nb_rb_set = 0;
  int sf;

  opp_enabled=1; // to enable the time meas

  cpu_freq_GHz = (double)get_cpu_freq_GHz();

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


  logInit();

  while ((c = getopt (argc, argv, "hapbXm: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) {
    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':
      sprintf(channel_model_input,optarg,10);
      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;
      case 'N':
	channel_model=AWGN;
	chMod = 1;
	break;
      default:
	msg("Unsupported channel model!\n");
	exit(-1);
	break;
      }
      break;
    case 's':
      snr0 = atof(optarg);
      break;
    case 'w':
      snr_int = atof(optarg);
      break;
    case 'e':
      input_snr_step= atof(optarg);
      break;
    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;
    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);
      nb_rb_set = 1;
      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;
      opp_enabled=1;
      break;
    case 'O':
      test_perf=atoi(optarg);
      //print_perf =1;
      break;
    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);  
  if (nb_rb_set == 0)
     nb_rb = PHY_vars_eNB->lte_frame_parms.N_RB_UL;

  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);

  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;

  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);
  
  sprintf(bler_fname,"ULbler_mcs%d_nrb%d_ChannelModel%d_nsim%d.csv",mcs,nb_rb,chMod,n_frames);
  bler_fd = fopen(bler_fname,"w");
 
  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");

  if (test_perf != 0) {
    char hostname[1024];
    hostname[1023] = '\0';
    gethostname(hostname, 1023);
    printf("Hostname: %s\n", hostname);
    char dirname[FILENAME_MAX];
    sprintf(dirname, "%s//SIMU/USER/pre-ci-logs-%s", getenv("OPENAIR_TARGETS"),hostname);
    mkdir(dirname, 0777);
    sprintf(time_meas_fname,"%s/time_meas_prb%d_mcs%d_antrx%d_channel%s_tx%d.csv",
	    dirname,
	    N_RB_DL,mcs,n_rx,channel_model_input,transmission_mode);
    time_meas_fd = fopen(time_meas_fname,"w");
  }
	
  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);
  }

  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;

  PHY_vars_UE->ul_power_control_dedicated[eNB_id].deltaMCS_Enabled = 1;
  
  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,N_RB_DL,0);
    PHY_vars_UE->dlsch_ue[0][i]  = new_ue_dlsch(1,8,MAX_TURBO_ITERATIONS,N_RB_DL,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
      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);
      ((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
      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);
      ((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
      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);
      ((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;
  PHY_vars_UE->frame_tx=1;

  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;
  }

  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);

  PHY_vars_eNB->proc[subframe].frame_rx = PHY_vars_UE->frame_tx;
  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_tx-1)&1023;

  PHY_vars_UE->dlsch_ue[0][0]->harq_ack[ul_subframe2pdcch_alloc_subframe(&PHY_vars_eNB->lte_frame_parms,subframe)].send_harq_status = 1;


  //  printf("UE frame %d, eNB frame %d (eNB frame_tx %d)\n",PHY_vars_UE->frame,PHY_vars_eNB->proc[subframe].frame_rx,PHY_vars_eNB->proc[ul_subframe2pdcch_alloc_subframe(&PHY_vars_eNB->lte_frame_parms,subframe)].frame_tx);
  PHY_vars_UE->frame_tx = (PHY_vars_UE->frame_tx-1)&1023;

  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);



  PHY_vars_UE->frame_tx = (PHY_vars_UE->frame_tx+1)&1023;
  
  
  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++;
 
    for (SNR=snr0;SNR<snr1;SNR+=input_snr_step) {
      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);


      harq_pid = subframe2harq_pid(&PHY_vars_UE->lte_frame_parms,PHY_vars_UE->frame_tx,subframe);
      //      printf("UL frame %d/subframe %d, harq_pid %d\n",PHY_vars_UE->frame,subframe,harq_pid);
      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;
      reset_meas(&PHY_vars_UE->phy_proc_tx);
      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);
      
      reset_meas(&PHY_vars_eNB->phy_proc_rx);
      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);

      // initialization
      struct list time_vector_tx;
      initialize(&time_vector_tx);
      struct list time_vector_rx;
      initialize(&time_vector_rx);
      
      for (trials = 0;trials<n_frames;trials++) {
	//      printf("*");
	//        PHY_vars_UE->frame++;
	//        PHY_vars_eNB->frame++;
      
	fflush(stdout);
	round=0;
	while (round < 4) {
	  PHY_vars_eNB->ulsch_eNB[0]->harq_processes[harq_pid]->round=round;
	  PHY_vars_UE->ulsch_ue[0]->harq_processes[harq_pid]->round=round;
	  //	printf("Trial %d : Round %d ",trials,round);
	  round_trials[round]++;
	  if (round == 0) {
	    //PHY_vars_eNB->ulsch_eNB[0]->harq_processes[harq_pid]->Ndi = 1;
	    PHY_vars_eNB->ulsch_eNB[0]->harq_processes[harq_pid]->rvidx = round>>1;
	    //PHY_vars_UE->ulsch_ue[0]->harq_processes[harq_pid]->Ndi = 1;
	    PHY_vars_UE->ulsch_ue[0]->harq_processes[harq_pid]->rvidx = round>>1;
	  }
	  else {
	    //PHY_vars_eNB->ulsch_eNB[0]->harq_processes[harq_pid]->Ndi = 0;
	    PHY_vars_eNB->ulsch_eNB[0]->harq_processes[harq_pid]->rvidx = round>>1;
	    //PHY_vars_UE->ulsch_ue[0]->harq_processes[harq_pid]->Ndi = 0;
	    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) {

	    start_meas(&PHY_vars_UE->phy_proc_tx);

#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,PHY_vars_UE->lte_frame_parms.N_RB_DL,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_tx,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_tx,subframe,&PHY_vars_UE->lte_frame_parms,
			     PHY_vars_UE->ulsch_ue[0]);
#endif
	    stop_meas(&PHY_vars_UE->ulsch_modulation_stats);	      	      	  
	    
	    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);	      	      
	      stop_meas(&PHY_vars_UE->phy_proc_tx); 
	      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 


	  tx_lev_dB = (unsigned int) dB_fixed_times10(tx_lev);
	
	  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);
	  }
		
	  //AWGN
	  //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;
	  sigma2 = pow(10,sigma2_dB/10);

	  // compute tx_gain to achieve target SNR (per resource element!)
	  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);
	  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));
  

	  // fill measurement symbol (19) with noise      
	  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      

	  start_meas(&PHY_vars_eNB->phy_proc_rx);
	  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;
	      }
	  }

	  ///////
	
	  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);
	  stop_meas(&PHY_vars_eNB->phy_proc_rx);
	  if (cqi_flag > 0) {
	    cqi_error = 0;
	    if (PHY_vars_eNB->ulsch_eNB[0]->harq_processes[harq_pid]->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]->harq_processes[harq_pid]->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]->harq_processes[harq_pid]->cqi_crc_status == 1)
		cqi_crc_falsepositives++;
	    }
	    else {
	      if (PHY_vars_eNB->ulsch_eNB[0]->harq_processes[harq_pid]->cqi_crc_status == 0)
		cqi_crc_falsenegatives++;
	    }
	  }
	  if (PHY_vars_eNB->ulsch_eNB[0]->harq_processes[harq_pid]->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]->harq_processes[harq_pid]->o_ACK[0],PHY_vars_eNB->ulsch_eNB[0]->harq_processes[harq_pid]->cqi_crc_status);
	      if (PHY_vars_eNB->ulsch_eNB[0]->harq_processes[harq_pid]->cqi_crc_status==1)
		print_CQI(PHY_vars_eNB->ulsch_eNB[0]->harq_processes[harq_pid]->o,
			  PHY_vars_eNB->ulsch_eNB[0]->harq_processes[harq_pid]->uci_format,0,PHY_vars_eNB->lte_frame_parms.N_RB_DL);
	      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]->harq_processes[harq_pid]->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       
        /*calculate the total processing time for each packet, get the max, min, and number of packets that exceed t>3000us*/
        double t_tx = (double)PHY_vars_UE->phy_proc_tx.p_time/cpu_freq_GHz/1000.0;        
        double t_rx = (double)PHY_vars_eNB->phy_proc_rx.p_time/cpu_freq_GHz/1000.0;
        if (t_tx > t_tx_max)
            t_tx_max = t_tx;
        if (t_tx < t_tx_min)
            t_tx_min = t_tx;
        if (t_rx > t_rx_max)
            t_rx_max = t_rx;
        if (t_rx < t_rx_min)
            t_rx_min = t_rx;
        if (t_tx > 2000)
            n_tx_dropped++;
        if (t_rx > 2000)
            n_rx_dropped++;
        
        push_front(&time_vector_tx, t_tx);
        push_front(&time_vector_rx, t_rx);
      }   //trials
      double table_tx[time_vector_tx.size];
      totable(table_tx, &time_vector_tx);

      double table_rx[time_vector_rx.size];
      totable(table_rx, &time_vector_rx);
      
      // sort table
      qsort (table_tx, time_vector_tx.size, sizeof(double), &compare);
      qsort (table_rx, time_vector_rx.size, sizeof(double), &compare);
      if (dump_table == 1 ) {
	int n;
	set_component_filelog(USIM); // file located in /tmp/usim.txt
	LOG_F(USIM,"The transmitter raw data: \n");
	for (n=0; n< time_vector_tx.size; n++){
	  //   printf("%f ", table_tx[n]);
	  LOG_F(USIM,"%f ", table_tx[n]);
	}
	LOG_F(USIM,"\n");
	LOG_F(USIM,"The receiver raw data: \n");
	for (n=0; n< time_vector_rx.size; n++){
	  // printf("%f ", table_rx[n]);
	  LOG_F(USIM,"%f ", table_rx[n]);
	}
     	LOG_F(USIM,"\n");
      }       
      double tx_median = table_tx[time_vector_tx.size/2];
      double tx_q1 = table_tx[time_vector_tx.size/4];
      double tx_q3 = table_tx[3*time_vector_tx.size/4];
      
      double rx_median = table_rx[time_vector_rx.size/2];
      double rx_q1 = table_rx[time_vector_rx.size/4];
      double rx_q3 = table_rx[3*time_vector_rx.size/4];
      double std_phy_proc_tx=0;
      double std_phy_proc_rx=0;
      printf("\n**********rb: %d ***mcs : %d  *********SNR = %f dB (%f): TX %d dB (gain %f dB), N0W %f dB, I0 %d dB, delta_IF %d [ (%d,%d) dB / (%d,%d) dB ]**************************\n",
	     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,
	     get_hundred_times_delta_IF(PHY_vars_UE,eNB_id,harq_pid) ,
	     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]);

      effective_rate = ((double)(round_trials[0])/((double)round_trials[0] + round_trials[1] + round_trials[2] + round_trials[3]));
  
      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",
	     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]),
	     rate*effective_rate,
	     100*effective_rate,
	     rate,
	     rate*get_Qm(mcs),
	     (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]);
      }
      if (PHY_vars_eNB->ulsch_eNB[0]->harq_processes[harq_pid]->o_ACK[0] > 0) 
	printf("ACK/NAK errors %d/%d\n",ack_errors,round_trials[0]+round_trials[1]+round_trials[2]+round_trials[3]);


      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]);


      if (dump_perf==1) {
	printf("UE TX function statistics (per 1ms subframe)\n\n");
        std_phy_proc_tx = sqrt((double)PHY_vars_UE->phy_proc_tx.diff_square/pow(cpu_freq_GHz,2)/pow(1000,2)/PHY_vars_UE->phy_proc_tx.trials - pow((double)PHY_vars_UE->phy_proc_tx.diff/PHY_vars_UE->phy_proc_tx.trials/cpu_freq_GHz/1000,2));
	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);
	printf("|__ Statistics                         std: %f us max: %fus min: %fus median %fus q1 %fus q3 %fus n_dropped: %d packet \n",std_phy_proc_tx, t_tx_max, t_tx_min, tx_median, tx_q1, tx_q3, n_tx_dropped);
	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");
        std_phy_proc_rx = sqrt((double)PHY_vars_eNB->phy_proc_rx.diff_square/pow(cpu_freq_GHz,2)/pow(1000,2)/PHY_vars_eNB->phy_proc_rx.trials - pow((double)PHY_vars_eNB->phy_proc_rx.diff/PHY_vars_eNB->phy_proc_rx.trials/cpu_freq_GHz/1000,2));
        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);
	printf("|__ Statistcs                           std: %fus max: %fus min: %fus median %fus q1 %fus q3 %fus n_dropped: %d packet \n", std_phy_proc_rx, t_rx_max, t_rx_min, rx_median, rx_q1, rx_q3, n_rx_dropped);
	
	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
      
      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;\n",
		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)
		);

	fprintf(time_meas_fd,"UE_PROC_TX_STD;UE_PROC_TX_MAX;UE_PROC_TX_MIN;UE_PROC_TX_MED;UE_PROC_TX_Q1;UE_PROC_TX_Q3;UE_PROC_TX_DROPPED;\n");
	fprintf(time_meas_fd,"%f;%f;%f;%f;%f;%f;%d;\n", std_phy_proc_tx, t_tx_max, t_tx_min, tx_median, tx_q1, tx_q3, n_tx_dropped);
	
	fprintf(time_meas_fd,"eNB_PROC_RX_STD;eNB_PROC_RX_MAX;eNB_PROC_RX_MIN;eNB_PROC_RX_MED;eNB_PROC_RX_Q1;eNB_PROC_RX_Q3;eNB_PROC_RX_DROPPED;\n");
	fprintf(time_meas_fd,"%f;%f;%f;%f;%f;%f;%d;\n", std_phy_proc_rx, t_rx_max, t_rx_min, rx_median, rx_q1, rx_q3, n_rx_dropped);


	
      	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);
      }


      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	
  
  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);
  if (test_perf !=0)
    fclose (time_meas_fd);
  
  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);

}