Cedric Roux
56c66c09aa
Pre-ci test passed git-svn-id: http://svn.eurecom.fr/openair4G/trunk@4000 818b1a75-f10b-46b9-bf7c-635c3b92a50f
3027 lines
104 KiB
C
3027 lines
104 KiB
C
#include <string.h>
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#include <math.h>
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#include <unistd.h>
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#include <execinfo.h>
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#include <signal.h>
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#include "SIMULATION/TOOLS/defs.h"
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#include "PHY/types.h"
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#include "PHY/defs.h"
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#include "PHY/vars.h"
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#include "MAC_INTERFACE/vars.h"
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#ifdef IFFT_FPGA
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#include "PHY/LTE_REFSIG/mod_table.h"
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#endif
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#include "ARCH/CBMIMO1/DEVICE_DRIVER/vars.h"
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#include "SCHED/defs.h"
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#include "SCHED/vars.h"
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#include "LAYER2/MAC/vars.h"
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#include "OCG_vars.h"
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#include "coeffs.h"
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#ifdef XFORMS
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#include "forms.h"
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#include "../../USERSPACE_TOOLS/SCOPE/lte_scope.h"
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#endif
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//#define AWGN
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//#define NO_DCI
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#define BW 7.68
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//modif start UL
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channel_desc_t *UE2eNB[NUMBER_OF_UE_MAX][NUMBER_OF_eNB_MAX];
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extern u16 beta_ack[16],beta_ri[16],beta_cqi[16];
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extern unsigned short dftsizes[33];
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extern short *ul_ref_sigs[30][2][33];
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//modif end UL
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PHY_VARS_eNB *PHY_vars_eNB;
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PHY_VARS_UE *PHY_vars_UE;
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void handler(int sig) {
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void *array[10];
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size_t size;
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// get void*'s for all entries on the stack
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size = backtrace(array, 10);
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// print out all the frames to stderr
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fprintf(stderr, "Error: signal %d:\n", sig);
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backtrace_symbols_fd(array, size, 2);
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exit(1);
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}
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#ifdef XFORMS
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void do_forms(FD_lte_scope *form, LTE_DL_FRAME_PARMS *frame_parms, short **channel, short **channel_f, short **rx_sig, short **rx_sig_f, short *dlsch_comp, short* dlsch_comp_i, short* dlsch_rho, short *dlsch_llr, int coded_bits_per_codeword)
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{
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int i,j,ind,k,s;
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float Re,Im;
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float mag_sig[NB_ANTENNAS_RX*4*NUMBER_OF_OFDM_CARRIERS*NUMBER_OF_OFDM_SYMBOLS_PER_SLOT],
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sig_time[NB_ANTENNAS_RX*4*NUMBER_OF_OFDM_CARRIERS*NUMBER_OF_OFDM_SYMBOLS_PER_SLOT],
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sig2[FRAME_LENGTH_COMPLEX_SAMPLES],
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time2[FRAME_LENGTH_COMPLEX_SAMPLES],
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I[25*12*11*4], Q[25*12*11*4],
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*llr,*llr_time;
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float avg, cum_avg;
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llr = malloc(coded_bits_per_codeword*sizeof(float));
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llr_time = malloc(coded_bits_per_codeword*sizeof(float));
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// Channel frequency response
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cum_avg = 0;
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ind = 0;
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for (j=0; j<4; j++) {
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for (i=0;i<frame_parms->nb_antennas_rx;i++) {
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for (k=0;k<NUMBER_OF_OFDM_CARRIERS*7;k++){
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sig_time[ind] = (float)ind;
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Re = (float)(channel_f[(j<<1)+i][2*k]);
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Im = (float)(channel_f[(j<<1)+i][2*k+1]);
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//mag_sig[ind] = (short) rand();
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mag_sig[ind] = (short)10*log10(1.0+((double)Re*Re + (double)Im*Im));
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cum_avg += (short)sqrt((double)Re*Re + (double)Im*Im) ;
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ind++;
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}
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// ind+=NUMBER_OF_OFDM_CARRIERS/4; // spacing for visualization
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}
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}
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avg = cum_avg/NUMBER_OF_USEFUL_CARRIERS;
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//fl_set_xyplot_ybounds(form->channel_f,30,70);
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fl_set_xyplot_data(form->channel_f,sig_time,mag_sig,ind,"","","");
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// channel_t_re = rx_sig_f[0]
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//for (i=0; i<FRAME_LENGTH_COMPLEX_SAMPLES_NO_PREFIX; i++) {
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for (i=0; i<NUMBER_OF_OFDM_CARRIERS*frame_parms->symbols_per_tti/2; i++) {
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sig2[i] = 10*log10(1.0+(double) ((rx_sig_f[0][4*i])*(rx_sig_f[0][4*i])+(rx_sig_f[0][4*i+1])*(rx_sig_f[0][4*i+1])));
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time2[i] = (float) i;
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}
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//fl_set_xyplot_ybounds(form->channel_t_re,10,90);
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fl_set_xyplot_data(form->channel_t_re,time2,sig2,NUMBER_OF_OFDM_CARRIERS*frame_parms->symbols_per_tti,"","","");
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//fl_set_xyplot_data(form->channel_t_re,time2,sig2,FRAME_LENGTH_COMPLEX_SAMPLES_NO_PREFIX,"","","");
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// channel_t_im = rx_sig[0]
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for (i=0; i<FRAME_LENGTH_COMPLEX_SAMPLES; i++) {
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sig2[i] = 10*log10(1.0+(double) ((rx_sig[0][2*i])*(rx_sig[0][2*i])+(rx_sig[0][2*i+1])*(rx_sig[0][2*i+1])));
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time2[i] = (float) i;
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}
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//fl_set_xyplot_ybounds(form->channel_t_im,0,100);
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//fl_set_xyplot_data(form->channel_t_im,&time2[640*12*6],&sig2[640*12*6],640*12,"","","");
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fl_set_xyplot_data(form->channel_t_im,time2,sig2,FRAME_LENGTH_COMPLEX_SAMPLES,"","","");
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//}
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// DLSCH LLR
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for(i=0;i<coded_bits_per_codeword;i++) {
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llr[i] = (float) dlsch_llr[i];
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llr_time[i] = (float) i;
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}
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fl_set_xyplot_data(form->demod_out,llr_time,llr,coded_bits_per_codeword,"","","");
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fl_set_xyplot_ybounds(form->demod_out,-1000,1000);
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// DLSCH I/Q
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j=0;
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for (s=0;s<frame_parms->symbols_per_tti;s++) {
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for(i=0;i<12*25;i++) {
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I[j] = dlsch_comp[(2*25*12*s)+2*i];
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Q[j] = dlsch_comp[(2*25*12*s)+2*i+1];
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j++;
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}
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//if (s==2)
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// s=3;
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//else if (s==5)
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// s=6;
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//else if (s==8)
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// s=9;
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}
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fl_set_xyplot_data(form->scatter_plot,I,Q,j,"","","");
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fl_set_xyplot_xbounds(form->scatter_plot,-2000,2000);
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fl_set_xyplot_ybounds(form->scatter_plot,-2000,2000);
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// DLSCH I/Q
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j=0;
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for (s=0;s<frame_parms->symbols_per_tti;s++) {
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for(i=0;i<12*25;i++) {
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I[j] = dlsch_comp_i[(2*25*12*s)+2*i];
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Q[j] = dlsch_comp_i[(2*25*12*s)+2*i+1];
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j++;
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}
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}
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fl_set_xyplot_data(form->scatter_plot1,I,Q,j,"","","");
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fl_set_xyplot_xbounds(form->scatter_plot1,-2000,2000);
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fl_set_xyplot_ybounds(form->scatter_plot1,-2000,2000);
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// DLSCH I/Q
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j=0;
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for (s=0;s<frame_parms->symbols_per_tti;s++) {
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for(i=0;i<12*25;i++) {
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I[j] = dlsch_rho[(2*25*12*s)+2*i];
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Q[j] = dlsch_rho[(2*25*12*s)+2*i+1];
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j++;
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}
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}
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fl_set_xyplot_data(form->scatter_plot2,I,Q,j,"","","");
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free(llr);
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free(llr_time);
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}
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#endif
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void lte_param_init(unsigned char N_tx, unsigned char N_rx,unsigned char transmission_mode,u8 extended_prefix_flag,u16 Nid_cell,u8 tdd_config,u8 N_RB_DL,u8 osf) {
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LTE_DL_FRAME_PARMS *lte_frame_parms;
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int i;
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printf("Start lte_param_init\n");
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PHY_vars_eNB = malloc(sizeof(PHY_VARS_eNB));
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PHY_vars_UE = malloc(sizeof(PHY_VARS_UE));
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//PHY_config = malloc(sizeof(PHY_CONFIG));
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mac_xface = malloc(sizeof(MAC_xface));
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randominit(0);
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set_taus_seed(0);
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lte_frame_parms = &(PHY_vars_eNB->lte_frame_parms);
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lte_frame_parms->N_RB_DL = N_RB_DL; //50 for 10MHz and 25 for 5 MHz
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lte_frame_parms->N_RB_UL = N_RB_DL;
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lte_frame_parms->Ncp = extended_prefix_flag;
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lte_frame_parms->Nid_cell = Nid_cell;
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lte_frame_parms->nushift = 0;
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lte_frame_parms->nb_antennas_tx = N_tx;
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lte_frame_parms->nb_antennas_rx = N_rx;
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lte_frame_parms->phich_config_common.phich_resource = oneSixth;
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lte_frame_parms->tdd_config = tdd_config;
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lte_frame_parms->frame_type = 1;
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// lte_frame_parms->Csrs = 2;
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// lte_frame_parms->Bsrs = 0;
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// lte_frame_parms->kTC = 0;44
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// lte_frame_parms->n_RRC = 0;
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lte_frame_parms->mode1_flag = (transmission_mode == 1)? 1 : 0;
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init_frame_parms(lte_frame_parms,osf);
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//copy_lte_parms_to_phy_framing(lte_frame_parms, &(PHY_config->PHY_framing));
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phy_init_top(lte_frame_parms); //allocation
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lte_frame_parms->twiddle_fft = twiddle_fft;
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lte_frame_parms->twiddle_ifft = twiddle_ifft;
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lte_frame_parms->rev = rev;
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PHY_vars_UE->is_secondary_ue = 0;
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PHY_vars_UE->lte_frame_parms = *lte_frame_parms;
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PHY_vars_eNB->lte_frame_parms = *lte_frame_parms;
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phy_init_lte_top(lte_frame_parms);
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dump_frame_parms(lte_frame_parms);
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for (i=0;i<3;i++)
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lte_gold(lte_frame_parms,PHY_vars_UE->lte_gold_table[i],i);
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phy_init_lte_ue(&PHY_vars_UE->lte_frame_parms,
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&PHY_vars_UE->lte_ue_common_vars,
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PHY_vars_UE->lte_ue_dlsch_vars,
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PHY_vars_UE->lte_ue_dlsch_vars_SI,
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PHY_vars_UE->lte_ue_dlsch_vars_ra,
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PHY_vars_UE->lte_ue_pbch_vars,
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PHY_vars_UE->lte_ue_pdcch_vars,
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PHY_vars_UE,0);
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phy_init_lte_eNB(&PHY_vars_eNB->lte_frame_parms,
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&PHY_vars_eNB->lte_eNB_common_vars,
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PHY_vars_eNB->lte_eNB_ulsch_vars,
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0,
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PHY_vars_eNB,
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1,
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0);
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printf("Done lte_param_init\n");
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}
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void do_bin(short *dl_ch_estimates, int dl_ch_estimates_length, unsigned char *input_buffer_UE, int dec_f) {
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int l,k;
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short temp;
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short temp1;
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int ind = 0;
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for (l=0; l<dl_ch_estimates_length; l++) {
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if (dl_ch_estimates[l]>0) {
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input_buffer_UE[ind] = 0;
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temp1 = dl_ch_estimates[l];
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}
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else {
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input_buffer_UE[ind] = 1;
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temp1 = (-1)*dl_ch_estimates[l];
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}
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ind+=7;
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for (k=0;k<7; k++) {
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temp = temp1%2;
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input_buffer_UE[ind-k] = (char)temp;
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temp1 = temp1/2;
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}
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ind++;
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}
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}
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/*void do_decalibration(short *input_RF, short *output_RF, int filter_length)
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{
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int nn,mm;
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//FIR in time domain IFFT?
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//y(n) = b(1)*x(n) + b(2)*x(n-1) + ... + b(nb+1)*x(n-nb)
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// - a(2)*y(n-1) - ... - a(na+1)*y(n-na)
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//b[0]=;
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for (nn=0; nn<filter_length; nn++) {
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for (mm=0; mm < K ; mm++) {
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output_RF[nn] =+ b[mm]*input_RF[nn-mm];
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}
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}
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}*/
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// Apply phase offsets
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void phase_offsets(double *re_in, double *im_in, double *re_out, double *im_out, int length_sig, double *phase_in, double phase_inc, int pos_neg) {
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int k;
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double tmp_re,tmp_im;
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double phase;
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for (k=0; k<length_sig; k++) {
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re_out[k] = 0;
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im_out[k] = 0;
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}
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phase = *phase_in;
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for (k=0; k<length_sig; k++) {
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tmp_re = re_in[k]*cos(phase) - pos_neg*im_in[k]*sin(phase);
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tmp_im = pos_neg*re_in[k]*sin(phase) + im_in[k]*cos(phase);
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re_out[k] = tmp_re;
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im_out[k] = tmp_im;
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phase += phase_inc;
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}
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*phase_in = phase;
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}
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void real_fir(double *re_in, double *im_in, double *re_out, double *im_out, double *coeffs, int ord_fir, int length_sig) {
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int k, l;
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double temp1, temp2;
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for (k=0; k<length_sig; k++) {
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re_out[k] = 0;
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im_out[k] = 0;
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}
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for (k=ord_fir; k<length_sig; k++) {
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temp1 = 0;
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temp2 = 0;
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for (l=0; l<ord_fir; l++) {
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temp1 += coeffs[l]*re_in[k-l-1];
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temp2 += coeffs[l]*im_in[k-l-1];
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}
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re_out[k] = temp1;
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im_out[k] = temp2;
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}
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}
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// Modif Channel quantization at UE
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void do_quantization(PHY_VARS_UE *PHY_vars_UE, unsigned int nsymb, u8 pilot1, int quant_v, short *dl_ch_estimates, int eNB_id, int dec_f) {
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int k;
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short tx_energy[4];
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short dl_ch_estimates_norm[4][PHY_vars_UE->lte_frame_parms.ofdm_symbol_size*nsymb];
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short dl_ch_estimates_norm_short[PHY_vars_UE->lte_frame_parms.ofdm_symbol_size*nsymb];
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//tx_energy[0] = signal_energy(&(PHY_vars_UE->lte_ue_common_vars.dl_ch_estimates[eNB_id][0][0]),PHY_vars_UE->lte_frame_parms.ofdm_symbol_size*nsymb);
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for(k=0;k<4;k++)
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tx_energy[k] = 8;
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/*
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for (k=0; k<PHY_vars_UE->lte_frame_parms.ofdm_symbol_size*nsymb; k+=2)
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tx_energy[0]+= ((short *)PHY_vars_UE->lte_ue_common_vars.dl_ch_estimates[0][0])[k]*((short *)PHY_vars_UE->lte_ue_common_vars.dl_ch_estimates[0][0])[k] + ((short *)PHY_vars_UE->lte_ue_common_vars.dl_ch_estimates[0][0])[k+1]*((short *)PHY_vars_UE->lte_ue_common_vars.dl_ch_estimates[0][0])[k+1];
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*/
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//printf("tx_energy[%d] = %d\n",0,tx_energy[0]);
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for (k=0; k<PHY_vars_UE->lte_frame_parms.ofdm_symbol_size*nsymb; k++) {
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dl_ch_estimates_norm[0][k] = ((short *)PHY_vars_UE->lte_ue_common_vars.dl_ch_estimates[0][0])[k]/tx_energy[0];
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//printf("dl_ch_estimates[%d] = %d , %d\n",k,PHY_vars_UE->lte_ue_common_vars.dl_ch_estimates[eNB_id][0][k],dl_ch_estimates_norm[0][k]);
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}
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//write_output("txsig_11.m","txs_11", dl_ch_estimates_norm[0],PHY_vars_UE->lte_frame_parms.ofdm_symbol_size*nsymb,1,0);
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//exit(-1);
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for (k=0;k<PHY_vars_UE->lte_frame_parms.ofdm_symbol_size*nsymb;k++)
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dl_ch_estimates_norm_short[k] = dl_ch_estimates_norm[0][k];
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for (k=pilot1*2*512; k<pilot1*2*512+2*300-1; k+=(2*dec_f)) {
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if (dl_ch_estimates_norm_short[k]>(quant_v-1))
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dl_ch_estimates[k-pilot1*2*512] = quant_v-1;
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else if (dl_ch_estimates_norm_short[k]< (-quant_v))
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dl_ch_estimates[k-pilot1*2*512] = -quant_v;
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else
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dl_ch_estimates[k-pilot1*2*512] = dl_ch_estimates_norm_short[k];
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if (dl_ch_estimates_norm_short[k+1]>(quant_v-1))
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dl_ch_estimates[k+1-pilot1*2*512] = quant_v-1;
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else if (dl_ch_estimates_norm_short[k+1]< (-quant_v))
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dl_ch_estimates[k+1-pilot1*2*512] = -quant_v;
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else
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dl_ch_estimates[k+1-pilot1*2*512] = dl_ch_estimates_norm_short[k+1];
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}
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if (PHY_vars_eNB->lte_frame_parms.nb_antennas_tx>1) {
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//tx_energy[2]=signal_energy(&(PHY_vars_UE->lte_ue_common_vars.dl_ch_estimates[eNB_id][2][0]),PHY_vars_UE->lte_frame_parms.ofdm_symbol_size*nsymb);
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printf("tx_energy[%d] = %d\n",1,tx_energy[1]);
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for (k=0; k<PHY_vars_UE->lte_frame_parms.ofdm_symbol_size*nsymb; k++)
|
|
dl_ch_estimates_norm[1][k] = PHY_vars_UE->lte_ue_common_vars.dl_ch_estimates[2][0][k]/tx_energy[1];
|
|
|
|
for (k=0;k<PHY_vars_UE->lte_frame_parms.ofdm_symbol_size*nsymb;k++)
|
|
dl_ch_estimates_norm_short[k] = ((short *)dl_ch_estimates_norm[1])[k];
|
|
|
|
|
|
for (k=pilot1*2*512; k<pilot1*2*512+2*300-1; k+=(2*dec_f)) {
|
|
if (dl_ch_estimates_norm_short[k]> (quant_v-1))
|
|
dl_ch_estimates[k-pilot1*2*512+(2*300)/dec_f] = quant_v-1;
|
|
else if (dl_ch_estimates_norm_short[k]< -quant_v)
|
|
dl_ch_estimates[k-pilot1*2*512+(2*300)/dec_f] = -quant_v;
|
|
else
|
|
dl_ch_estimates[k-pilot1*2*512+(2*300)/dec_f] = dl_ch_estimates_norm_short[k];
|
|
|
|
if (dl_ch_estimates_norm_short[k+1]> (quant_v-1))
|
|
dl_ch_estimates[k-pilot1*2*512+1+(2*300)/dec_f] = quant_v-1;
|
|
else if (dl_ch_estimates_norm_short[k]< -quant_v)
|
|
dl_ch_estimates[k-pilot1*2*512+1+(2*300)/dec_f] = -quant_v;
|
|
else
|
|
dl_ch_estimates[k-pilot1*2*512+1+(2*300)/dec_f] = dl_ch_estimates_norm_short[k+1];
|
|
}
|
|
}
|
|
|
|
if (PHY_vars_UE->lte_frame_parms.nb_antennas_rx>1) {
|
|
//tx_energy[1] = signal_energy(&(PHY_vars_UE->lte_ue_common_vars.dl_ch_estimates[eNB_id][1][0]),PHY_vars_UE->lte_frame_parms.ofdm_symbol_size*nsymb);
|
|
printf("tx_energy[%d] = %d\n",2,tx_energy[2]);
|
|
for (k=0; k<PHY_vars_UE->lte_frame_parms.ofdm_symbol_size*nsymb; k++)
|
|
dl_ch_estimates_norm[2][k] = PHY_vars_UE->lte_ue_common_vars.dl_ch_estimates[1][0][k]/tx_energy[2];
|
|
|
|
for (k=0;k<PHY_vars_UE->lte_frame_parms.ofdm_symbol_size*nsymb;k++)
|
|
dl_ch_estimates_norm_short[k] = ((short *)dl_ch_estimates_norm[2])[k];
|
|
|
|
|
|
for (k=pilot1*2*512; k<pilot1*2*512+2*300-1; k+=(2*dec_f)) {
|
|
if (dl_ch_estimates_norm_short[k] > (quant_v-1))
|
|
dl_ch_estimates[k-pilot1*2*512+(2*600)/dec_f] = quant_v-1;
|
|
else if (dl_ch_estimates_norm_short[k]< (-quant_v))
|
|
dl_ch_estimates[k-pilot1*2*512+(2*600)/dec_f] = -quant_v;
|
|
else
|
|
dl_ch_estimates[k-pilot1*2*512+2*600] = dl_ch_estimates_norm_short[k];
|
|
|
|
if (dl_ch_estimates_norm_short[k+1] > (quant_v-1))
|
|
dl_ch_estimates[k-pilot1*2*512+1+(2*600)/dec_f] = quant_v-1;
|
|
else if (dl_ch_estimates_norm_short[k+1]< (-quant_v))
|
|
dl_ch_estimates[k-pilot1*2*512+1+(2*600)/dec_f] = -quant_v;
|
|
else
|
|
dl_ch_estimates[k-pilot1*2*512+1+(2*600)/dec_f] = dl_ch_estimates_norm_short[k+1];
|
|
}
|
|
}
|
|
|
|
if ((PHY_vars_UE->lte_frame_parms.nb_antennas_rx>1) && (PHY_vars_eNB->lte_frame_parms.nb_antennas_tx>1)) {
|
|
//tx_energy[3]=signal_energy(&(PHY_vars_UE->lte_ue_common_vars.dl_ch_estimates[eNB_id][3][0]),PHY_vars_UE->lte_frame_parms.ofdm_symbol_size*nsymb);
|
|
printf("tx_energy[%d] = %d\n",3,tx_energy[3]);
|
|
|
|
for (k=0; k<PHY_vars_UE->lte_frame_parms.ofdm_symbol_size*nsymb/2; k++)
|
|
dl_ch_estimates_norm[3][k] = PHY_vars_UE->lte_ue_common_vars.dl_ch_estimates[3][0][k]/tx_energy[3];
|
|
|
|
for (k=0;k<PHY_vars_UE->lte_frame_parms.ofdm_symbol_size*nsymb;k++)
|
|
dl_ch_estimates_norm_short[k] = ((short *)dl_ch_estimates_norm[3])[k];
|
|
|
|
for (k=pilot1*2*512; k<pilot1*2*512+2*300-1; k+=(2*dec_f)) {
|
|
if (dl_ch_estimates_norm_short[k]> (quant_v-1))
|
|
dl_ch_estimates[k-pilot1*2*512+(2*900)/dec_f] = quant_v-1;
|
|
else if (dl_ch_estimates_norm_short[k]< (-quant_v))
|
|
dl_ch_estimates[k-pilot1*2*512+(2*900)/dec_f] = -quant_v;
|
|
else
|
|
dl_ch_estimates[k-pilot1*2*512+(2*900)/dec_f] = dl_ch_estimates_norm_short[k];
|
|
|
|
if (dl_ch_estimates_norm_short[k+1]> (quant_v-1))
|
|
dl_ch_estimates[k-pilot1*2*512+1+(2*900)/dec_f] = quant_v-1;
|
|
else if (dl_ch_estimates_norm_short[k+1]< (-quant_v))
|
|
dl_ch_estimates[k-pilot1*2*512+1+(2*900)/dec_f] = -quant_v;
|
|
else
|
|
dl_ch_estimates[k-pilot1*2*512+1+(2*900)/dec_f] = dl_ch_estimates_norm_short[k+1];
|
|
}
|
|
}
|
|
}
|
|
|
|
void do_quan(PHY_VARS_eNB *PHY_vars_eNB, unsigned int nsymb, u8 pilot1, int quant_v, short *drs_ch_estimates, int UE_id) {
|
|
int k;
|
|
short tx_energy[2];
|
|
short drs_ch_estimates_norm[2][PHY_vars_eNB->lte_frame_parms.ofdm_symbol_size*nsymb];
|
|
short drs_ch_estimates_norm_short[PHY_vars_eNB->lte_frame_parms.ofdm_symbol_size*nsymb];
|
|
|
|
|
|
//tx_energy[0] = signal_energy(&(PHY_vars_UE->lte_ue_common_vars.dl_ch_estimates[eNB_id][0][0]),PHY_vars_UE->lte_frame_parms.ofdm_symbol_size*nsymb);
|
|
for(k=0;k<2;k++)
|
|
tx_energy[k] = 8;
|
|
|
|
for (k=0; k<PHY_vars_eNB->lte_frame_parms.ofdm_symbol_size*nsymb; k++)
|
|
drs_ch_estimates_norm[0][k] = ((short *)PHY_vars_eNB->lte_eNB_ulsch_vars[0]->drs_ch_estimates[UE_id][0])[k]/tx_energy[0];
|
|
|
|
for (k=pilot1*2*300; k<pilot1*2*300+2*300-1; k+=2) {
|
|
if (drs_ch_estimates_norm[0][k]>(quant_v-1))
|
|
drs_ch_estimates[k-pilot1*2*300] = quant_v-1;
|
|
else if ((drs_ch_estimates_norm[0][k]) < (-quant_v))
|
|
drs_ch_estimates[k-pilot1*2*300] = -quant_v;
|
|
else
|
|
drs_ch_estimates[k-pilot1*2*300] = drs_ch_estimates_norm[0][k];
|
|
|
|
if (drs_ch_estimates_norm[0][k+1]>(quant_v-1))
|
|
drs_ch_estimates[k+1-pilot1*2*300] = quant_v-1;
|
|
else if ((drs_ch_estimates_norm[0][k+1])< (-quant_v))
|
|
drs_ch_estimates[k+1-pilot1*2*300] = -quant_v;
|
|
else
|
|
drs_ch_estimates[k+1-pilot1*2*300] = drs_ch_estimates_norm[0][k+1];
|
|
}
|
|
/*
|
|
if (PHY_vars_eNB->lte_frame_parms.nb_antennas_tx>1) {
|
|
//tx_energy[2]=signal_energy(&(PHY_vars_UE->lte_ue_common_vars.dl_ch_estimates[eNB_id][2][0]),PHY_vars_UE->lte_frame_parms.ofdm_symbol_size*nsymb);
|
|
printf("tx_energy[%d] = %d\n",1,tx_energy[1]);
|
|
for (k=0; k<PHY_vars_UE->lte_frame_parms.ofdm_symbol_size*nsymb; k++)
|
|
dl_ch_estimates_norm[1][k] = PHY_vars_UE->lte_ue_common_vars.dl_ch_estimates[2][0][k]/tx_energy[1];
|
|
|
|
for (k=0;k<PHY_vars_UE->lte_frame_parms.ofdm_symbol_size*nsymb;k++)
|
|
dl_ch_estimates_norm_short[k] = ((short *)dl_ch_estimates_norm[1])[k];
|
|
|
|
|
|
for (k=pilot1*2*512; k<pilot1*2*512+2*300-1; k+=(2*dec_f)) {
|
|
if (dl_ch_estimates_norm_short[k]> (quant_v-1))
|
|
dl_ch_estimates[k-pilot1*2*512+(2*300)/dec_f] = quant_v-1;
|
|
else if (dl_ch_estimates_norm_short[k]< -quant_v)
|
|
dl_ch_estimates[k-pilot1*2*512+(2*300)/dec_f] = -quant_v;
|
|
else
|
|
dl_ch_estimates[k-pilot1*2*512+(2*300)/dec_f] = dl_ch_estimates_norm_short[k];
|
|
|
|
if (dl_ch_estimates_norm_short[k+1]> (quant_v-1))
|
|
dl_ch_estimates[k-pilot1*2*512+1+(2*300)/dec_f] = quant_v-1;
|
|
else if (dl_ch_estimates_norm_short[k]< -quant_v)
|
|
dl_ch_estimates[k-pilot1*2*512+1+(2*300)/dec_f] = -quant_v;
|
|
else
|
|
dl_ch_estimates[k-pilot1*2*512+1+(2*300)/dec_f] = dl_ch_estimates_norm_short[k+1];
|
|
}
|
|
}
|
|
|
|
if (PHY_vars_UE->lte_frame_parms.nb_antennas_rx>1) {
|
|
//tx_energy[1] = signal_energy(&(PHY_vars_UE->lte_ue_common_vars.dl_ch_estimates[eNB_id][1][0]),PHY_vars_UE->lte_frame_parms.ofdm_symbol_size*nsymb);
|
|
printf("tx_energy[%d] = %d\n",2,tx_energy[2]);
|
|
for (k=0; k<PHY_vars_UE->lte_frame_parms.ofdm_symbol_size*nsymb; k++)
|
|
dl_ch_estimates_norm[2][k] = PHY_vars_UE->lte_ue_common_vars.dl_ch_estimates[1][0][k]/tx_energy[2];
|
|
|
|
for (k=0;k<PHY_vars_UE->lte_frame_parms.ofdm_symbol_size*nsymb;k++)
|
|
dl_ch_estimates_norm_short[k] = ((short *)dl_ch_estimates_norm[2])[k];
|
|
|
|
|
|
for (k=pilot1*2*512; k<pilot1*2*512+2*300-1; k+=(2*dec_f)) {
|
|
if (dl_ch_estimates_norm_short[k] > (quant_v-1))
|
|
dl_ch_estimates[k-pilot1*2*512+(2*600)/dec_f] = quant_v-1;
|
|
else if (dl_ch_estimates_norm_short[k]< (-quant_v))
|
|
dl_ch_estimates[k-pilot1*2*512+(2*600)/dec_f] = -quant_v;
|
|
else
|
|
dl_ch_estimates[k-pilot1*2*512+2*600] = dl_ch_estimates_norm_short[k];
|
|
|
|
if (dl_ch_estimates_norm_short[k+1] > (quant_v-1))
|
|
dl_ch_estimates[k-pilot1*2*512+1+(2*600)/dec_f] = quant_v-1;
|
|
else if (dl_ch_estimates_norm_short[k+1]< (-quant_v))
|
|
dl_ch_estimates[k-pilot1*2*512+1+(2*600)/dec_f] = -quant_v;
|
|
else
|
|
dl_ch_estimates[k-pilot1*2*512+1+(2*600)/dec_f] = dl_ch_estimates_norm_short[k+1];
|
|
}
|
|
}
|
|
|
|
*/
|
|
|
|
//write_output("dll1.m","dl1", drs_ch_estimates_norm[0],PHY_vars_eNB->lte_frame_parms.ofdm_symbol_size*nsymb,1,0);
|
|
//write_output("dll2.m","dl2", drs_ch_estimates,PHY_vars_eNB->lte_frame_parms.ofdm_symbol_size*nsymb,1,1);
|
|
//exit(-1);
|
|
}
|
|
|
|
|
|
//end Modif channel quantization at UE
|
|
|
|
//calibration algo
|
|
void do_calibration(short K_dl_ch_estimates[25][2][600], short K_drs_ch_estimates[25][2][600], double PeNb_factor[2][600], int ofdm_syn, int n_K) {
|
|
|
|
//Calib Algor in eNb
|
|
int i=0, s_c=0;
|
|
double ar=0,ai=0,br=0,bi=0,cr=0,ci=0,dr=0,di=0;
|
|
int aa;
|
|
int length_H_G = n_K*4;
|
|
|
|
short H[length_H_G];
|
|
short G[length_H_G];
|
|
bzero(H,length_H_G);
|
|
bzero(G,length_H_G);
|
|
|
|
//printf("ofdm_sym = %d\n",); exit(-1);
|
|
|
|
//printf("i = %d \n",K_dl_ch_estimates[0][0][0]);
|
|
//exit(-1);
|
|
|
|
for(s_c=0; s_c<600; s_c+=2)
|
|
{
|
|
for(aa=0; aa<1; aa++)
|
|
{
|
|
//system for 1 ant at primary, change to perform onother prim ant
|
|
for(i=0;i<n_K;i++)
|
|
{
|
|
//printf("i = %d\n",i);
|
|
G[(i<<2)+0] = K_dl_ch_estimates[i][aa][s_c+0];
|
|
G[(i<<2)+1] = K_dl_ch_estimates[i][aa][s_c+1];
|
|
H[(i<<2)+0] = K_drs_ch_estimates[i][aa][s_c+0];
|
|
H[(i<<2)+1] = K_drs_ch_estimates[i][aa][s_c+1];
|
|
}
|
|
|
|
for(i=0;i<n_K;i++)
|
|
{ //LEN == K_est
|
|
// [A B]^H*[A B]
|
|
ar += H[(i<<2)+0]*H[(i<<2)+0] + H[(i<<2)+1]*H[(i<<2)+1]; //(a-ib)(a+ib)=(a^2+b^2)
|
|
// ai += -H[(i<<2)+0]*H[(i<<2)+1] + H[(i<<2)+1]*H[(i<<2)+0];
|
|
br += H[(i<<2)+0]*G[(i<<2)+0] + H[(i<<2)+1]*G[(i<<2)+1];
|
|
bi += -H[(i<<2)+0]*G[(i<<2)+1] + H[(i<<2)+1]*G[(i<<2)+0];
|
|
//cr += G[(i<<2)+0]*H[(i<<2)+0] + G[(i<<2)+1]*H[(i<<2)+1];
|
|
//ci += -G[(i<<2)+0]*H[(i<<2)+1] + G[(i<<2)+1]*H[(i<<2)+0];
|
|
dr += G[(i<<2)+0]*G[(i<<2)+0] + G[(i<<2)+1]*G[(i<<2)+1];
|
|
//di += -G[(i<<2)+0]*G[(i<<2)+1] + G[(i<<2)+1]*G[(i<<2)+0];
|
|
//if((s_c>>1)==0 || (s_c>>1)==1 || (s_c>>1)==2 || (s_c>>1)==3) printf("\n ar=%d, ai=%d, br=%d, bi=%d, dr=%d, di=%d\n", ar,ai,br,bi,dr,di);
|
|
}
|
|
ar = (double)(ar/100);
|
|
//ai = 0;
|
|
br = (double)(br/100);
|
|
bi = (double)(bi/100);
|
|
//cr = (double)(cr/100);
|
|
//ci = (double)(ci/100);
|
|
dr = (double)(dr/100);
|
|
//di = 0;
|
|
|
|
|
|
if( (ar-dr+iSqrt((ar-dr)*(ar-dr)+((br*br+bi*bi)*4)))==0)
|
|
{
|
|
PeNb_factor[aa][s_c] = 0;
|
|
PeNb_factor[aa][s_c+1] = 0;
|
|
}
|
|
else{
|
|
//printf("Dif de 0\n");
|
|
PeNb_factor[aa][s_c] = (2*br/(ar-dr+iSqrt((ar-dr)*(ar-dr)+((br*br+bi*bi)*4))));
|
|
PeNb_factor[aa][s_c+1] = (-2*bi/(ar-dr+iSqrt((ar-dr)*(ar-dr)+((br*br+bi*bi)*4))));
|
|
}
|
|
|
|
ar=0; ai=0; br=0; bi=0; cr=0; ci=0; dr=0; di=0;
|
|
//if ((s_c>>1) > 4) exit(-1);
|
|
}
|
|
}
|
|
msg("[CAL PROC]P_eNb DETERMINED... \n");
|
|
}
|
|
|
|
|
|
//DCI2_5MHz_2A_M10PRB_TDD_t DLSCH_alloc_pdu2_2A[2];
|
|
DCI2_5MHz_2D_M10PRB_TDD_t DLSCH_alloc_pdu2_2D[2];
|
|
|
|
|
|
#define UL_RB_ALLOC 0x1ff;
|
|
#define CCCH_RB_ALLOC computeRIV(PHY_vars_eNB->lte_frame_parms.N_RB_UL,0,2)
|
|
//#define DLSCH_RB_ALLOC 0x1fbf // igore DC component,RB13
|
|
#define DLSCH_RB_ALLOC 0x1fff // all 25 RBs
|
|
//#define DLSCH_RB_ALLOC 0x0001
|
|
|
|
int main(int argc, char **argv) {
|
|
|
|
char c;
|
|
int k,i,j,b,aa,aarx,Msc_RS_idx;
|
|
|
|
int s,Kr,Kr_bytes;
|
|
|
|
double sigma2, sigma2_dB=10,SNR,snr0=-2.0,snr1,rate;
|
|
//modif start UL
|
|
unsigned int coded_bits_per_codeword_UE;
|
|
double sigma2_UE, sigma2_UE_dB=10, SNRmeas, rate_UE;
|
|
u8 control_only_flag = 0;
|
|
u8 cooperation_flag = 0;
|
|
int **txdata_UE;
|
|
channel_desc_t *UE2eNB;
|
|
u8 cyclic_shift = 0;
|
|
u8 beta_ACK=0,beta_RI=0,beta_CQI=2;
|
|
u8 srs_flag = 0;
|
|
char fname[20],vname[20];
|
|
//modif end UL
|
|
double snr_step=1, snr_int=30;
|
|
//int **txdataF, **txdata;
|
|
int **txdata;
|
|
#ifdef IFFT_FPGA
|
|
int **txdataF2;
|
|
//modif start UL
|
|
int **txdataF2_UE;
|
|
//modif end UL
|
|
int ind;
|
|
#endif
|
|
LTE_DL_FRAME_PARMS *frame_parms;
|
|
double **s_re,**s_im,**r_re,**r_im;
|
|
//modif start UL
|
|
int llb;
|
|
double **s_re_UE, **s_im_UE, **r_re_UE, **r_im_UE;
|
|
//modif end UL
|
|
double forgetting_factor=1.0; //in [0,1] 0 means a new channel every time, 1 means keep the same channel
|
|
//double hold_channel=0; //use hold_channel=1 instead of forgetting_factor=1 (more efficient)
|
|
double iqim=0.0;
|
|
|
|
u8 extended_prefix_flag=0,transmission_mode=1,n_tx=1,n_rx=1;
|
|
u16 Nid_cell=0;
|
|
|
|
int eNB_id = 0, eNB_id_i = NUMBER_OF_eNB_MAX;
|
|
//modif start UL
|
|
int UE_id = 0;
|
|
unsigned char mcs_UE;
|
|
int dec_f=1;
|
|
short quant=8, quant_v;
|
|
//modif end UL
|
|
unsigned char mcs_eNB,dual_stream_UE = 0,awgn_flag=0,round_eNB,round_UE,dci_flag=0;
|
|
unsigned char i_mod = 2;
|
|
unsigned short NB_RB=conv_nprb(0,DLSCH_RB_ALLOC);
|
|
unsigned char Ns,l,m;
|
|
u16 tdd_config=3;
|
|
u16 n_rnti=0x1234;
|
|
|
|
int n_users = 1;
|
|
|
|
int decalibration = 1, phase_offset = 1;
|
|
|
|
double s_time = 1/7.68e6;
|
|
double delta_offset_UL = 90;
|
|
double delta_offset_DL = 100;
|
|
double phase_inc_UL = 2*M_PI*delta_offset_UL*s_time;
|
|
double phase_inc_DL = 2*M_PI*delta_offset_DL*s_time;
|
|
|
|
double phase_in_UL = 0;//phase_inc_UL;
|
|
double phase_in_DL = 0;//phase_inc_DL;
|
|
|
|
SCM_t channel_model=Rayleigh1_corr;
|
|
|
|
unsigned char *input_buffer[2];
|
|
unsigned short input_buffer_length;
|
|
unsigned int ret_eNB,ret_UE;
|
|
unsigned int coded_bits_per_codeword,nsymb,dci_cnt,tbs;
|
|
|
|
unsigned int tx_lev,tx_lev_dB,trials,errs_eNB[4]={0,0,0,0},round_trials_UE[4]={0,0,0,0},round_trials_eNB[4]={0,0,0,0},dci_errors=0,dlsch_active=0,num_layers;
|
|
//modif start UL
|
|
unsigned int tx_lev_UE,tx_lev_UE_dB,errs_UE[4]={0,0,0,0};
|
|
//unsigned char *input_buffer_UE; //b
|
|
char *input_buffer_UE; //b
|
|
unsigned short input_buffer_length_UE;
|
|
//modif end UL
|
|
int re_allocated;
|
|
FILE *bler_fd;
|
|
char bler_fname[256];
|
|
FILE *tikz_fd;
|
|
char tikz_fname[256];
|
|
|
|
FILE *input_trch_fd;
|
|
unsigned char input_trch_file=0;
|
|
FILE *input_fd=NULL;
|
|
unsigned char input_file=0;
|
|
char input_val_str[50],input_val_str2[50];
|
|
|
|
char input_trch_val[16];
|
|
double pilot_sinr, abs_channel;
|
|
|
|
// unsigned char pbch_pdu[6];
|
|
|
|
DCI_ALLOC_t dci_alloc[8],dci_alloc_rx[8];
|
|
int num_common_dci=0,num_ue_spec_dci=0,num_dci=0;
|
|
|
|
// FILE *rx_frame_file;
|
|
|
|
int n_frames;
|
|
int n_ch_rlz = 1;
|
|
channel_desc_t *eNB2UE;
|
|
double snr;
|
|
u8 num_pdcch_symbols=3,num_pdcch_symbols_2=0;
|
|
u8 pilot1,pilot2,pilot3;
|
|
u8 rx_sample_offset = 0;
|
|
//char stats_buffer[4096];
|
|
//int len;
|
|
u8 num_rounds = 1,fix_rounds=0;
|
|
u8 subframe=6;
|
|
//modif start UL
|
|
int subframe_UL=2;
|
|
//modif end UL
|
|
int u;
|
|
int abstx=0;
|
|
int iii;
|
|
FILE *csv_fd;
|
|
char csv_fname[20];
|
|
int ch_realization;
|
|
int pmi_feedback=0;
|
|
// void *data;
|
|
// int ii;
|
|
// int bler;
|
|
double blerr,uncoded_ber,avg_ber;
|
|
short *uncoded_ber_bit;
|
|
u8 N_RB_DL=25,osf=1;
|
|
s16 amp;
|
|
//modif start UL
|
|
unsigned char harq_pid;
|
|
FILE *trch_out_fd=NULL;
|
|
unsigned char nb_rb_UE=25, first_rb=0, bundling_flag=1;
|
|
//modif end UL
|
|
#ifdef XFORMS
|
|
FD_lte_scope *form;
|
|
char title[255];
|
|
#endif
|
|
|
|
// Calibration parameters
|
|
int P_eNb_active=0;
|
|
double PeNb_factor[2][600];
|
|
|
|
signal(SIGSEGV, handler);
|
|
|
|
// default parameters
|
|
mcs_eNB = 0;
|
|
//modif start UL
|
|
mcs_UE = 4;
|
|
//modif end UL
|
|
n_frames = 1000;
|
|
snr0 = 0;
|
|
num_layers = 1;
|
|
|
|
while ((c = getopt (argc, argv, "hadpm:n:o:s:f:t:c:g:r:F:x:y:z:M:N:I:i:R:S:C:T:b:u:w:X:q:D:")) != -1) {
|
|
switch (c)
|
|
{
|
|
case 'a':
|
|
awgn_flag = 1;
|
|
break;
|
|
case 'b':
|
|
tdd_config=atoi(optarg);
|
|
break;
|
|
case 'd':
|
|
dci_flag = 1;
|
|
break;
|
|
case 'm':
|
|
mcs_eNB = atoi(optarg);
|
|
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;*/
|
|
//modif start UL
|
|
case 'w':
|
|
mcs_UE = atoi(optarg);
|
|
break;
|
|
case 'r':
|
|
nb_rb_UE = atoi(optarg);
|
|
break;
|
|
case 'f':
|
|
first_rb = atoi(optarg);
|
|
break;
|
|
case 'q':
|
|
quant = atoi(optarg);
|
|
break;
|
|
case 'D':
|
|
dec_f = atoi(optarg);
|
|
break;
|
|
//modif end UL
|
|
case 'n':
|
|
n_frames = atoi(optarg);
|
|
break;
|
|
case 'C':
|
|
Nid_cell = atoi(optarg);
|
|
break;
|
|
case 'o':
|
|
rx_sample_offset = atoi(optarg);
|
|
break;
|
|
case 'F':
|
|
forgetting_factor = atof(optarg);
|
|
break;
|
|
case 's':
|
|
snr0 = atoi(optarg);
|
|
break;
|
|
case 't':
|
|
//Td= atof(optarg);
|
|
printf("Please use the -G option to select the channel model\n");
|
|
exit(-1);
|
|
break;
|
|
case 'X':
|
|
snr_step= atof(optarg);
|
|
break;
|
|
case 'M':
|
|
abstx= atof(optarg);
|
|
break;
|
|
case 'N':
|
|
n_ch_rlz= atof(optarg);
|
|
break;
|
|
case 'p':
|
|
extended_prefix_flag=1;
|
|
break;
|
|
case 'c':
|
|
num_pdcch_symbols=atoi(optarg);
|
|
break;
|
|
case 'g':
|
|
switch((char)*optarg) {
|
|
case 'A':
|
|
channel_model=SCM_A;
|
|
break;
|
|
case 'B':
|
|
channel_model=SCM_B;
|
|
break;
|
|
case 'C':
|
|
channel_model=SCM_C;
|
|
break;
|
|
case 'D':
|
|
channel_model=SCM_D;
|
|
break;
|
|
case 'E':
|
|
channel_model=EPA;
|
|
break;
|
|
case 'F':
|
|
channel_model=EVA;
|
|
break;
|
|
case 'G':
|
|
channel_model=ETU;
|
|
break;
|
|
case 'H':
|
|
channel_model=Rayleigh8;
|
|
break;
|
|
case 'I':
|
|
channel_model=Rayleigh1;
|
|
break;
|
|
case 'J':
|
|
channel_model=Rayleigh1_corr;
|
|
break;
|
|
case 'K':
|
|
channel_model=Rayleigh1_anticorr;
|
|
break;
|
|
case 'L':
|
|
channel_model=Rice8;
|
|
break;
|
|
case 'M':
|
|
channel_model=Rice1;
|
|
break;
|
|
default:
|
|
msg("Unsupported channel model!\n");
|
|
exit(-1);
|
|
}
|
|
break;
|
|
case 'x':
|
|
transmission_mode=atoi(optarg);
|
|
if ((transmission_mode!=1) &&
|
|
(transmission_mode!=2) &&
|
|
(transmission_mode!=5) &&
|
|
(transmission_mode!=6)) {
|
|
msg("Unsupported transmission mode %d\n",transmission_mode);
|
|
exit(-1);
|
|
}
|
|
break;
|
|
case 'y':
|
|
n_tx=atoi(optarg);
|
|
if ((n_tx==0) || (n_tx>2)) {
|
|
msg("Unsupported number of tx antennas %d\n",n_tx);
|
|
exit(-1);
|
|
}
|
|
break;
|
|
case 'z':
|
|
n_rx=atoi(optarg);
|
|
if ((n_rx==0) || (n_rx>2)) {
|
|
msg("Unsupported number of rx antennas %d\n",n_rx);
|
|
exit(-1);
|
|
}
|
|
break;
|
|
case 'I':
|
|
input_trch_fd = fopen(optarg,"r");
|
|
input_trch_file=1;
|
|
break;
|
|
case 'i':
|
|
input_fd = fopen(optarg,"r");
|
|
input_file=1;
|
|
dci_flag = 1;
|
|
break;
|
|
case 'R':
|
|
num_rounds=atoi(optarg);
|
|
fix_rounds=1;
|
|
break;
|
|
case 'S':
|
|
subframe=atoi(optarg);
|
|
break;
|
|
case 'T':
|
|
n_rnti=atoi(optarg);
|
|
break;
|
|
case 'u':
|
|
dual_stream_UE=atoi(optarg);
|
|
if ((n_tx!=2) || (transmission_mode!=5)) {
|
|
msg("Unsupported nb of decoded users: %d user(s), %d user(s) to decode\n", n_tx, dual_stream_UE);
|
|
exit(-1);
|
|
}
|
|
break;
|
|
case 'h':
|
|
default:
|
|
printf("%s -h(elp) -a(wgn on) -d(ci decoding on) -p(extended prefix on) -m mcs_eNB -n n_frames -s snr0 -t Delayspread -x transmission mode (1,2,5,6) -y TXant -z RXant -I trch_file\n",argv[0]);
|
|
printf("-h This message\n");
|
|
printf("-a Use AWGN channel and not multipath\n");
|
|
printf("-c Number of PDCCH symbols\n");
|
|
printf("-m MCS_eNB\n");
|
|
printf("-w MCS_UE\n");
|
|
printf("-q quantization parameters\n");
|
|
printf("-D DL decimacion factor at UE\n");
|
|
printf("-r nb_rb_UE Number of ressource blocs in the UL\n");
|
|
printf("-f First ressource bloc in the UL\n");
|
|
printf("-d Transmit the DCI and compute its error statistics and the overall throughput\n");
|
|
printf("-p Use extended prefix mode\n");
|
|
printf("-n Number of frames to simulate\n");
|
|
printf("-o Sample offset for receiver\n");
|
|
printf("-s Starting SNR, runs from SNR to SNR+%.1fdB in steps of %.1fdB. If n_frames is 1 then just SNR is simulated and MATLAB/OCTAVE output is generated\n", snr_int, snr_step);
|
|
printf("-X step size of SNR, default value is 1.\n");
|
|
printf("-t Delay spread for multipath channel\n");
|
|
//printf("-r Ricean factor (dB, 0 dB = Rayleigh, 100 dB = almost AWGN)\n");
|
|
printf("-g [A:M] Use 3GPP 25.814 SCM-A/B/C/D('A','B','C','D') or 36-101 EPA('E'), EVA ('F'),ETU('G') models (ignores delay spread and Ricean factor), Rayghleigh8 ('H'), Rayleigh1('I'), Rayleigh1_corr('J'), Rayleigh1_anticorr ('K'), Rice8('L'), Rice1('M')\n");
|
|
printf("-F forgetting factor (0 new channel every trial, 1 channel constant\n");
|
|
printf("-x Transmission mode (1,2,6 for the moment)\n");
|
|
printf("-y Number of TX antennas used in eNB\n");
|
|
printf("-z Number of RX antennas used in UE\n");
|
|
printf("-R Number of HARQ rounds (fixed)\n");
|
|
printf("-M Determines whether the Absraction flag is on or Off. 1-->On and 0-->Off. Default status is Off. \n");
|
|
printf("-N Determines the number of Channel Realizations in Absraction mode. Default value is 1. \n");
|
|
printf("-I Input filename for TrCH data (binary)\n");
|
|
printf("-u Determines if the 2 streams at the UE are decoded or not. 0-->U2 is interference only and 1-->U2 is detected\n");
|
|
exit(1);
|
|
break;
|
|
}
|
|
}
|
|
|
|
#ifdef XFORMS
|
|
fl_initialize (&argc, argv, NULL, 0, 0);
|
|
form = create_form_lte_scope();
|
|
sprintf (title, "LTE DLSIM SCOPE");
|
|
fl_show_form (form->lte_scope, FL_PLACE_HOTSPOT, FL_FULLBORDER, title);
|
|
#endif
|
|
|
|
if (transmission_mode==5) {
|
|
n_users = 2;
|
|
printf("dual_stream_UE=%d\n", dual_stream_UE);
|
|
}
|
|
|
|
lte_param_init(n_tx,n_rx,transmission_mode,extended_prefix_flag,Nid_cell,tdd_config,N_RB_DL,osf);
|
|
|
|
|
|
printf("Setting mcs_eNB = %d\n",mcs_eNB);
|
|
//modif start UL
|
|
printf("Setting mcs_UE = %d\n",mcs_UE);
|
|
quant_v = (2<<(quant-1))/2; //b quantization bit
|
|
//printf("quant %d\n",quant_v);
|
|
//exit(-1);
|
|
//modif end UL
|
|
printf("NPRB = %d\n",NB_RB);
|
|
printf("n_frames = %d\n",n_frames);
|
|
printf("Transmission mode %d with %dx%d antenna configuration, Extended Prefix %d\n",transmission_mode,n_tx,n_rx,extended_prefix_flag);
|
|
|
|
snr1 = snr0+snr_int;
|
|
printf("SNR0 %f, SNR1 %f\n",snr0,snr1);
|
|
|
|
frame_parms = &PHY_vars_eNB->lte_frame_parms;
|
|
|
|
#ifdef IFFT_FPGA
|
|
txdata = (int **)malloc16(2*sizeof(int*));
|
|
txdata[0] = (int *)malloc16(FRAME_LENGTH_BYTES);
|
|
txdata[1] = (int *)malloc16(FRAME_LENGTH_BYTES);
|
|
|
|
bzero(txdata[0],FRAME_LENGTH_BYTES);
|
|
bzero(txdata[1],FRAME_LENGTH_BYTES);
|
|
|
|
txdataF2 = (int **)malloc16(2*sizeof(int*));
|
|
txdataF2[0] = (int *)malloc16(FRAME_LENGTH_BYTES_NO_PREFIX);
|
|
txdataF2[1] = (int *)malloc16(FRAME_LENGTH_BYTES_NO_PREFIX);
|
|
|
|
bzero(txdataF2[0],FRAME_LENGTH_BYTES_NO_PREFIX);
|
|
bzero(txdataF2[1],FRAME_LENGTH_BYTES_NO_PREFIX);
|
|
|
|
//modif start UL
|
|
txdata_UE = (int **)malloc16(2*sizeof(int*));
|
|
txdata_UE[0] = (int *)malloc16(FRAME_LENGTH_BYTES);
|
|
txdata_UE[1] = (int *)malloc16(FRAME_LENGTH_BYTES);
|
|
|
|
bzero(txdata_UE[0],FRAME_LENGTH_BYTES);
|
|
bzero(txdata_UE[1],FRAME_LENGTH_BYTES);
|
|
|
|
txdataF2_UE = (int **)malloc16(2*sizeof(int*));
|
|
txdataF2_UE[0] = (int *)malloc16(FRAME_LENGTH_BYTES_NO_PREFIX);
|
|
txdataF2_UE[1] = (int *)malloc16(FRAME_LENGTH_BYTES_NO_PREFIX);
|
|
|
|
bzero(txdataF2_UE[0],FRAME_LENGTH_BYTES_NO_PREFIX);
|
|
bzero(txdataF2_UE[1],FRAME_LENGTH_BYTES_NO_PREFIX);
|
|
//modif end UL
|
|
#else
|
|
txdata = PHY_vars_eNB->lte_eNB_common_vars.txdata[eNB_id];
|
|
//modif start UL
|
|
txdata_UE = PHY_vars_UE->lte_ue_common_vars.txdata;
|
|
//modif end UL
|
|
#endif
|
|
|
|
|
|
s_re = malloc(2*sizeof(double*));
|
|
s_im = malloc(2*sizeof(double*));
|
|
r_re = malloc(2*sizeof(double*));
|
|
r_im = malloc(2*sizeof(double*));
|
|
nsymb = (PHY_vars_eNB->lte_frame_parms.Ncp == 0) ? 14 : 12;
|
|
//modif start UL
|
|
//int dl_ch_estimates_norm[4][PHY_vars_UE->lte_frame_parms.ofdm_symbol_size*nsymb/2];
|
|
int n_K=15;
|
|
int dl_ch_estimates_length=(2*300*4)/dec_f;
|
|
short dl_ch_estimates[dl_ch_estimates_length];
|
|
bzero(dl_ch_estimates,(dl_ch_estimates_length));
|
|
|
|
short K_dl_ch_estimates[n_K][2][600];
|
|
short K_drs_ch_estimates[n_K][2][600];
|
|
|
|
double s_re_out[2*nsymb*OFDM_SYMBOL_SIZE_COMPLEX_SAMPLES], s_im_out[2*nsymb*OFDM_SYMBOL_SIZE_COMPLEX_SAMPLES], r_re_out[2*nsymb*OFDM_SYMBOL_SIZE_COMPLEX_SAMPLES], r_im_out[2*nsymb*OFDM_SYMBOL_SIZE_COMPLEX_SAMPLES];
|
|
|
|
for(aa=0;aa<2;aa++)
|
|
{
|
|
for(k=0;k<n_K;k++)
|
|
{
|
|
bzero(K_dl_ch_estimates[k][aa],600);
|
|
bzero(K_drs_ch_estimates[k][aa],600);
|
|
}
|
|
}
|
|
|
|
int drs_ch_estimates_length=(2*300*4)/dec_f;
|
|
short drs_ch_estimates[drs_ch_estimates_length];
|
|
bzero(drs_ch_estimates,(drs_ch_estimates_length));
|
|
|
|
|
|
s_re_UE = malloc(2*sizeof(double*));
|
|
s_im_UE = malloc(2*sizeof(double*));
|
|
r_re_UE = malloc(2*sizeof(double*));
|
|
r_im_UE = malloc(2*sizeof(double*));
|
|
|
|
coded_bits_per_codeword_UE = nb_rb_UE * (12 * get_Qm(mcs_UE)) * nsymb;
|
|
rate_UE = (double)dlsch_tbs25[get_I_TBS(mcs_UE)][nb_rb_UE-1]/(coded_bits_per_codeword_UE);
|
|
//modif end UL
|
|
|
|
printf("Channel Model=%d\n",channel_model);
|
|
printf("SCM-A=%d, SCM-B=%d, SCM-C=%d, SCM-D=%d, EPA=%d, EVA=%d, ETU=%d, Rayleigh8=%d, Rayleigh1=%d, Rayleigh1_corr=%d, Rayleigh1_anticorr=%d, Rice1=%d, Rice8=%d\n",
|
|
SCM_A, SCM_B, SCM_C, SCM_D, EPA, EVA, ETU, Rayleigh8, Rayleigh1, Rayleigh1_corr, Rayleigh1_anticorr, Rice1, Rice8);
|
|
sprintf(bler_fname,"second_bler_tx%d_mcs%d_chan%d.csv",transmission_mode,mcs_eNB,channel_model);
|
|
bler_fd = fopen(bler_fname,"w");
|
|
fprintf(bler_fd,"SNR; MCS; TBS; rate; err0; trials0; err1; trials1; err2; trials2; err3; trials3; dci_err\n");
|
|
|
|
if(abstx){
|
|
// CSV file
|
|
sprintf(csv_fname,"data_out%d.m",mcs_eNB);
|
|
csv_fd = fopen(csv_fname,"w");
|
|
fprintf(csv_fd,"data_all%d=[",mcs_eNB);
|
|
}
|
|
|
|
sprintf(tikz_fname, "second_bler_tx%d_u2=%d_mcs%d_chan%d_nsimus%d",transmission_mode,dual_stream_UE,mcs_eNB,channel_model,n_frames);
|
|
tikz_fd = fopen(tikz_fname,"w");
|
|
|
|
switch (mcs_eNB)
|
|
{
|
|
case 0:
|
|
fprintf(tikz_fd,"\\addplot[color=blue, mark=star] plot coordinates {");
|
|
break;
|
|
case 1:
|
|
fprintf(tikz_fd,"\\addplot[color=red, mark=star] plot coordinates {");
|
|
break;
|
|
case 2:
|
|
fprintf(tikz_fd,"\\addplot[color=green, mark=star] plot coordinates {");
|
|
break;
|
|
case 3:
|
|
fprintf(tikz_fd,"\\addplot[color=yellow, mark=star] plot coordinates {");
|
|
break;
|
|
case 4:
|
|
fprintf(tikz_fd,"\\addplot[color=black, mark=star] plot coordinates {");
|
|
break;
|
|
case 5:
|
|
fprintf(tikz_fd,"\\addplot[color=blue, mark=o] plot coordinates {");
|
|
break;
|
|
case 6:
|
|
fprintf(tikz_fd,"\\addplot[color=red, mark=o] plot coordinates {");
|
|
break;
|
|
case 7:
|
|
fprintf(tikz_fd,"\\addplot[color=green, mark=o] plot coordinates {");
|
|
break;
|
|
case 8:
|
|
fprintf(tikz_fd,"\\addplot[color=yellow, mark=o] plot coordinates {");
|
|
break;
|
|
case 9:
|
|
fprintf(tikz_fd,"\\addplot[color=black, mark=o] plot coordinates {");
|
|
break;
|
|
}
|
|
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));
|
|
//modif start UL
|
|
s_re_UE[i] = malloc(FRAME_LENGTH_COMPLEX_SAMPLES*sizeof(double));
|
|
s_im_UE[i] = malloc(FRAME_LENGTH_COMPLEX_SAMPLES*sizeof(double));
|
|
r_re_UE[i] = malloc(FRAME_LENGTH_COMPLEX_SAMPLES*sizeof(double));
|
|
r_im_UE[i] = malloc(FRAME_LENGTH_COMPLEX_SAMPLES*sizeof(double));
|
|
//modif end UL
|
|
|
|
}
|
|
|
|
|
|
//PHY_vars_UE->lte_ue_pdcch_vars[0]->crnti = n_rnti;
|
|
PHY_vars_UE->lte_ue_pdcch_vars[0]->crnti = 14;
|
|
|
|
//modif start UL
|
|
UL_alloc_pdu.type = 0;
|
|
UL_alloc_pdu.rballoc = computeRIV(PHY_vars_eNB->lte_frame_parms.N_RB_UL,first_rb,nb_rb_UE);// 12 RBs from position 8
|
|
printf("rballoc %d (dci %x)\n",UL_alloc_pdu.rballoc,*(u32 *)&UL_alloc_pdu);
|
|
UL_alloc_pdu.mcs = mcs_UE;
|
|
UL_alloc_pdu.ndi = 1;
|
|
UL_alloc_pdu.TPC = 0;
|
|
UL_alloc_pdu.cqi_req = 0;
|
|
UL_alloc_pdu.cshift = 0;
|
|
UL_alloc_pdu.dai = 1;
|
|
|
|
PHY_vars_UE->PHY_measurements.rank[0] = 0;
|
|
PHY_vars_UE->transmission_mode[0] = transmission_mode;
|
|
PHY_vars_UE->pucch_config_dedicated[0].tdd_AckNackFeedbackMode = bundling_flag == 1 ? bundling : multiplexing;
|
|
PHY_vars_eNB->transmission_mode[0] = transmission_mode;
|
|
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;
|
|
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);
|
|
|
|
if (n_frames==1) {
|
|
for (b=0;b<33;b++) {
|
|
printf("dftsizes[%d] %d\n",b,dftsizes[b]);
|
|
if ((nb_rb_UE*12)==dftsizes[b])
|
|
Msc_RS_idx = b;
|
|
}
|
|
printf("nb_rb_UE %d => Msc_RS_idx %d\n",nb_rb_UE,Msc_RS_idx);
|
|
for (u=0;u<30;u++) {
|
|
printf("Writing u %d\n",u);
|
|
sprintf(fname,"ul_zc%d_%d.m",nb_rb_UE,u);
|
|
sprintf(vname,"ulzc%d_%d",nb_rb_UE,u);
|
|
write_output(fname,vname,(void*)&ul_ref_sigs[u][0][Msc_RS_idx][0],2*nb_rb_UE*12,1,1);
|
|
}
|
|
}
|
|
|
|
// printf("RIV %d\n",UL_alloc_pdu.rballoc);
|
|
//modif end UL
|
|
|
|
// Fill in UL_alloc
|
|
CCCH_alloc_pdu.type = 0;
|
|
CCCH_alloc_pdu.vrb_type = 0;
|
|
CCCH_alloc_pdu.rballoc = CCCH_RB_ALLOC;
|
|
CCCH_alloc_pdu.ndi = 1;
|
|
CCCH_alloc_pdu.mcs = 1;
|
|
CCCH_alloc_pdu.harq_pid = 0;
|
|
//modif start UL
|
|
DLSCH_alloc_pdu2.rah = 0;
|
|
DLSCH_alloc_pdu2.rballoc = DLSCH_RB_ALLOC;
|
|
DLSCH_alloc_pdu2.TPC = 0;
|
|
DLSCH_alloc_pdu2.dai = 0;
|
|
DLSCH_alloc_pdu2.harq_pid = 0;
|
|
DLSCH_alloc_pdu2.tb_swap = 0;
|
|
DLSCH_alloc_pdu2.mcs1 = mcs_UE;//to check
|
|
DLSCH_alloc_pdu2.ndi1 = 1;
|
|
DLSCH_alloc_pdu2.rv1 = 0;
|
|
// Forget second codeword
|
|
DLSCH_alloc_pdu2.tpmi = 5 ; // precoding
|
|
//modif end UL
|
|
|
|
DLSCH_alloc_pdu2_2D[0].rah = 0;
|
|
DLSCH_alloc_pdu2_2D[0].rballoc = DLSCH_RB_ALLOC;
|
|
DLSCH_alloc_pdu2_2D[0].TPC = 0;
|
|
DLSCH_alloc_pdu2_2D[0].dai = 0;
|
|
DLSCH_alloc_pdu2_2D[0].harq_pid = 0;
|
|
DLSCH_alloc_pdu2_2D[0].tb_swap = 0;
|
|
DLSCH_alloc_pdu2_2D[0].mcs1 = mcs_eNB;
|
|
DLSCH_alloc_pdu2_2D[0].ndi1 = 1;
|
|
DLSCH_alloc_pdu2_2D[0].rv1 = 0;
|
|
// Forget second codeword
|
|
DLSCH_alloc_pdu2_2D[0].tpmi = (transmission_mode>=5 ? 5 : 0); // precoding
|
|
DLSCH_alloc_pdu2_2D[0].dl_power_off = (transmission_mode==5 ? 0 : 1);
|
|
|
|
DLSCH_alloc_pdu2_2D[1].rah = 0;
|
|
DLSCH_alloc_pdu2_2D[1].rballoc = DLSCH_RB_ALLOC;
|
|
DLSCH_alloc_pdu2_2D[1].TPC = 0;
|
|
DLSCH_alloc_pdu2_2D[1].dai = 0;
|
|
DLSCH_alloc_pdu2_2D[1].harq_pid = 0;
|
|
DLSCH_alloc_pdu2_2D[1].tb_swap = 0;
|
|
DLSCH_alloc_pdu2_2D[1].mcs1 = mcs_eNB;
|
|
DLSCH_alloc_pdu2_2D[1].ndi1 = 1;
|
|
DLSCH_alloc_pdu2_2D[1].rv1 = 0;
|
|
// Forget second codeword
|
|
DLSCH_alloc_pdu2_2D[1].tpmi = (transmission_mode>=5 ? 5 : 0) ; // precoding
|
|
DLSCH_alloc_pdu2_2D[1].dl_power_off = (transmission_mode==5 ? 0 : 1);
|
|
|
|
// Create transport channel structures for SI pdus
|
|
PHY_vars_eNB->dlsch_eNB_SI = new_eNB_dlsch(1,1,0);
|
|
PHY_vars_UE->dlsch_ue_SI[0] = new_ue_dlsch(1,1,0);
|
|
PHY_vars_eNB->dlsch_eNB_SI->rnti = SI_RNTI;
|
|
PHY_vars_UE->dlsch_ue_SI[0]->rnti = SI_RNTI;
|
|
|
|
eNB2UE = new_channel_desc_scm(PHY_vars_eNB->lte_frame_parms.nb_antennas_tx,
|
|
PHY_vars_UE->lte_frame_parms.nb_antennas_rx,
|
|
channel_model,
|
|
BW,
|
|
forgetting_factor,
|
|
rx_sample_offset,
|
|
0);
|
|
|
|
//modif start UL
|
|
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_UE->lte_frame_parms.nb_antennas_tx,//b
|
|
PHY_vars_eNB->lte_frame_parms.nb_antennas_rx,//b
|
|
channel_model,
|
|
BW,
|
|
forgetting_factor,
|
|
0, //rx_sample_offset
|
|
0);
|
|
PHY_vars_eNB->ulsch_eNB[0] = new_eNB_ulsch(3,0);
|
|
PHY_vars_UE->ulsch_ue[0] = new_ue_ulsch(3,0);
|
|
//modif end UL
|
|
|
|
if (eNB2UE==NULL) {
|
|
msg("Problem generating channel model. Exiting.\n");
|
|
exit(-1);
|
|
}
|
|
|
|
// if (hold_channel==1)
|
|
//random_channel(eNB2UE);
|
|
|
|
//UE2eNB = eNB2UE;
|
|
|
|
for (k=0;k<n_users;k++) {
|
|
// Create transport channel structures for 2 transport blocks (MIMO)
|
|
for (i=0;i<2;i++) {
|
|
PHY_vars_eNB->dlsch_eNB[k][i] = new_eNB_dlsch(1,8,0);
|
|
|
|
if (!PHY_vars_eNB->dlsch_eNB[k][i]) {
|
|
printf("Can't get eNB dlsch structures\n");
|
|
exit(-1);
|
|
}
|
|
|
|
PHY_vars_eNB->dlsch_eNB[k][i]->rnti = n_rnti+k;
|
|
}
|
|
}
|
|
|
|
for (i=0;i<2;i++) {
|
|
PHY_vars_UE->dlsch_ue[0][i] = new_ue_dlsch(1,8,0);
|
|
if (!PHY_vars_UE->dlsch_ue[0][i]) {
|
|
printf("Can't get ue dlsch structures\n");
|
|
exit(-1);
|
|
}
|
|
PHY_vars_UE->dlsch_ue[0][i]->rnti = n_rnti; //b Check rnti numb
|
|
}
|
|
|
|
generate_ue_ulsch_params_from_dci((void *)&UL_alloc_pdu,
|
|
14,
|
|
(subframe_UL<4)?(subframe_UL+6):(subframe_UL-4),
|
|
format0,
|
|
PHY_vars_UE,
|
|
SI_RNTI,
|
|
RA_RNTI,
|
|
P_RNTI,
|
|
0,
|
|
srs_flag);
|
|
|
|
generate_eNB_ulsch_params_from_dci((DCI0_5MHz_TDD_1_6_t *)&UL_alloc_pdu,
|
|
14,
|
|
(subframe_UL<4)?(subframe_UL+6):(subframe_UL-4),
|
|
format0,
|
|
0,
|
|
PHY_vars_eNB,
|
|
SI_RNTI,
|
|
RA_RNTI,
|
|
P_RNTI,
|
|
srs_flag);
|
|
|
|
PHY_vars_UE->ulsch_ue[0]->o_ACK[0] = 1;
|
|
//modif end UL
|
|
|
|
|
|
if (DLSCH_alloc_pdu2_2D[0].tpmi == 5) {
|
|
|
|
PHY_vars_eNB->eNB_UE_stats[0].DL_pmi_single = (unsigned short)(taus()&0xffff);
|
|
if (n_users>1)
|
|
PHY_vars_eNB->eNB_UE_stats[1].DL_pmi_single = (PHY_vars_eNB->eNB_UE_stats[0].DL_pmi_single ^ 0x1555); //opposite PMI
|
|
}
|
|
else {
|
|
PHY_vars_eNB->eNB_UE_stats[0].DL_pmi_single = 0;
|
|
if (n_users>1)
|
|
PHY_vars_eNB->eNB_UE_stats[1].DL_pmi_single = 0;
|
|
}
|
|
|
|
|
|
if (input_fd==NULL) {
|
|
|
|
for(k=0;k<n_users;k++) {
|
|
printf("Generating dlsch params for user %d\n",k);
|
|
generate_eNB_dlsch_params_from_dci(0,
|
|
&DLSCH_alloc_pdu2_2D[k],
|
|
n_rnti+k,
|
|
format2_2D_M10PRB,
|
|
PHY_vars_eNB->dlsch_eNB[k],
|
|
&PHY_vars_eNB->lte_frame_parms,
|
|
SI_RNTI,
|
|
RA_RNTI,
|
|
P_RNTI,
|
|
PHY_vars_eNB->eNB_UE_stats[k].DL_pmi_single);
|
|
}
|
|
|
|
num_dci = 0;
|
|
num_ue_spec_dci = 0;
|
|
num_common_dci = 0;
|
|
|
|
|
|
// UE specific DCI
|
|
for(k=0;k<n_users;k++) {
|
|
memcpy(&dci_alloc[num_dci].dci_pdu[0],&DLSCH_alloc_pdu2_2D[k],sizeof(DCI2_5MHz_2D_M10PRB_TDD_t));
|
|
dci_alloc[num_dci].dci_length = sizeof_DCI2_5MHz_2D_M10PRB_TDD_t;
|
|
dci_alloc[num_dci].L = 2;
|
|
dci_alloc[num_dci].rnti = n_rnti+k;
|
|
dci_alloc[num_dci].format = format2_2D_M10PRB;
|
|
|
|
dump_dci(&PHY_vars_eNB->lte_frame_parms,&dci_alloc[num_dci]);
|
|
|
|
num_dci++;
|
|
num_ue_spec_dci++;
|
|
|
|
|
|
}
|
|
|
|
for (k=0;k<n_users;k++) {
|
|
|
|
input_buffer_length = PHY_vars_eNB->dlsch_eNB[k][0]->harq_processes[0]->TBS/8;
|
|
input_buffer[k] = (unsigned char *)malloc(input_buffer_length+4);
|
|
memset(input_buffer[k],0,input_buffer_length+4);
|
|
|
|
if (input_trch_file==0) {
|
|
for (i=0;i<input_buffer_length;i++) {
|
|
input_buffer[k][i]= (unsigned char)(taus()&0xff);
|
|
}
|
|
}
|
|
|
|
else {
|
|
i=0;
|
|
while ((!feof(input_trch_fd)) && (i<input_buffer_length<<3)) {
|
|
fscanf(input_trch_fd,"%s",input_trch_val);
|
|
if (input_trch_val[0] == '1')
|
|
input_buffer[k][i>>3]+=(1<<(7-(i&7)));
|
|
if (i<16)
|
|
printf("input_trch_val %d : %c\n",i,input_trch_val[0]);
|
|
i++;
|
|
if (((i%8) == 0) && (i<17))
|
|
printf("%x\n",input_buffer[k][(i-1)>>3]);
|
|
}
|
|
printf("Read in %d bits\n",i);
|
|
}
|
|
}
|
|
}
|
|
|
|
if (PHY_vars_eNB->lte_frame_parms.Ncp == 0) { // normal prefix
|
|
pilot1 = 4;
|
|
pilot2 = 7;
|
|
pilot3 = 11;
|
|
}
|
|
else { // extended prefix
|
|
pilot1 = 3;
|
|
pilot2 = 6;
|
|
pilot3 = 9;
|
|
}
|
|
|
|
for (ch_realization=0;ch_realization<n_ch_rlz;ch_realization++){
|
|
if(abstx){
|
|
printf("**********************Channel Realization Index = %d **************************\n", ch_realization);
|
|
}
|
|
for (SNR=snr0;SNR<snr1;SNR+=snr_step) {
|
|
errs_eNB[0]=0;
|
|
errs_eNB[1]=0;
|
|
errs_eNB[2]=0;
|
|
errs_eNB[3]=0;
|
|
round_trials_eNB[0] = 0;
|
|
round_trials_eNB[1] = 0;
|
|
round_trials_eNB[2] = 0;
|
|
round_trials_eNB[3] = 0;
|
|
errs_UE[0]=0;
|
|
errs_UE[1]=0;
|
|
errs_UE[2]=0;
|
|
errs_UE[3]=0;
|
|
round_trials_UE[0] = 0;
|
|
round_trials_UE[1] = 0;
|
|
round_trials_UE[2] = 0;
|
|
round_trials_UE[3] = 0;
|
|
|
|
random_channel(eNB2UE);
|
|
|
|
UE2eNB = eNB2UE;
|
|
|
|
dci_errors=0;
|
|
avg_ber = 0;
|
|
llb=0;
|
|
round_UE=0;
|
|
round_eNB=0;
|
|
//modif start UL
|
|
randominit(0);
|
|
|
|
harq_pid = subframe2harq_pid(&PHY_vars_UE->lte_frame_parms,subframe_UL);
|
|
|
|
if (input_fd == NULL) {
|
|
|
|
input_buffer_length_UE = PHY_vars_UE->ulsch_ue[0]->harq_processes[harq_pid]->TBS/8;
|
|
|
|
//input_buffer_UE = (unsigned char *)malloc(input_buffer_length_UE+4);//b
|
|
input_buffer_UE = (char *)malloc(input_buffer_length_UE+4);//b
|
|
mac_xface->frame=1;
|
|
if (n_frames == 1) {
|
|
trch_out_fd = fopen("ulsch_trch.txt","w");
|
|
for (i=0;i<input_buffer_length_UE;i++) {
|
|
input_buffer_UE[i] = taus()&0xff; //b
|
|
//printf("input_buffer_UE[%d] = %d\n", i,input_buffer_UE[i]);
|
|
for (j=0;j<8;j++)
|
|
fprintf(trch_out_fd,"%d\n",(input_buffer_UE[i]>>(7-j))&1);
|
|
} //exit(-1);
|
|
|
|
fclose(trch_out_fd);
|
|
}
|
|
}
|
|
else {
|
|
n_frames=1;
|
|
i=0;
|
|
while (!feof(input_fd)) {
|
|
fscanf(input_fd,"%s %s",input_val_str,input_val_str2);//&input_val1,&input_val2);
|
|
|
|
if ((i%4)==0) {
|
|
((short*)txdata_UE[0])[i/2] = (short)((1<<15)*strtod(input_val_str,NULL));
|
|
((short*)txdata_UE[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_UE[0])[i/4],((short*)txdata_UE[0])[(i/4)+1]);//1,input_val2,);
|
|
}
|
|
i++;
|
|
if (i>(FRAME_LENGTH_SAMPLES))
|
|
break;
|
|
}
|
|
printf("Read in %d samples\n",i/4);
|
|
write_output("txsig0_UE.m","txs0_UE", txdata_UE[0],2*frame_parms->samples_per_tti,1,1);
|
|
|
|
tx_lev_UE = signal_energy(&txdata_UE[0][0],
|
|
OFDM_SYMBOL_SIZE_COMPLEX_SAMPLES);
|
|
tx_lev_UE_dB = (unsigned int) dB_fixed(tx_lev_UE);
|
|
|
|
}
|
|
//modif end UL
|
|
|
|
for (trials = 0;trials<n_frames;trials++) {
|
|
// printf("Trial %d\n",trials);
|
|
fflush(stdout);
|
|
round_eNB=0;
|
|
round_UE=0;
|
|
|
|
//modif start b
|
|
|
|
if(trials > 0){
|
|
for (i=0;i<input_buffer_length_UE;i++){
|
|
input_buffer_UE[i]=(char)(dl_ch_estimates[i]);
|
|
//printf("input_buffer_UE[%d]= %d, dl_ch_estimates[%d]=%d \n",i,input_buffer_UE[i],i,dl_ch_estimates[i]);
|
|
|
|
}
|
|
//for(aa=0;aa<12;aa++)
|
|
// printf("transmit[%d]=%d \n",aa,input_buffer_UE[aa]);
|
|
}
|
|
//modif end b
|
|
|
|
//if (trials%100==0)
|
|
eNB2UE->first_run = 1;
|
|
|
|
while (round_eNB < num_rounds) {
|
|
round_trials_eNB[round_eNB]++;
|
|
round_trials_UE[round_UE]++;
|
|
|
|
if(transmission_mode>=5)
|
|
pmi_feedback=1;
|
|
else
|
|
pmi_feedback=0;
|
|
|
|
PMI_FEEDBACK:
|
|
//modif start
|
|
// printf("Trial %d : Round %d, pmi_feedback %d \n",trials,round_eNB,pmi_feedback);
|
|
for (aa=0; aa<PHY_vars_eNB->lte_frame_parms.nb_antennas_tx;aa++) {
|
|
#ifdef IFFT_FPGA
|
|
memset(&PHY_vars_eNB->lte_eNB_common_vars.txdataF[eNB_id][aa][0],0,NUMBER_OF_USEFUL_CARRIERS*NUMBER_OF_SYMBOLS_PER_FRAME*sizeof(mod_sym_t));
|
|
#else
|
|
memset(&PHY_vars_eNB->lte_eNB_common_vars.txdataF[eNB_id][aa][0],0,FRAME_LENGTH_COMPLEX_SAMPLES_NO_PREFIX*sizeof(mod_sym_t));
|
|
#endif
|
|
}
|
|
|
|
|
|
if (input_fd==NULL) {
|
|
if (round_UE == 0) {
|
|
//modif start
|
|
PHY_vars_eNB->ulsch_eNB[0]->harq_processes[0]->Ndi = 1;
|
|
PHY_vars_eNB->ulsch_eNB[0]->harq_processes[0]->rvidx = round_UE>>1;
|
|
PHY_vars_UE->ulsch_ue[0]->harq_processes[0]->Ndi = 1;
|
|
PHY_vars_UE->ulsch_ue[0]->harq_processes[0]->rvidx = round_UE>>1;
|
|
//modif end
|
|
}
|
|
else {
|
|
//modif start
|
|
PHY_vars_eNB->ulsch_eNB[0]->harq_processes[0]->Ndi = 0;
|
|
PHY_vars_eNB->ulsch_eNB[0]->harq_processes[0]->rvidx = round_UE>>1;
|
|
PHY_vars_UE->ulsch_ue[0]->harq_processes[0]->Ndi = 0;
|
|
PHY_vars_UE->ulsch_ue[0]->harq_processes[0]->rvidx = round_UE>>1;
|
|
//modif start
|
|
|
|
}
|
|
if (round_eNB == 0) {
|
|
PHY_vars_eNB->dlsch_eNB[0][0]->harq_processes[0]->Ndi = 1;
|
|
PHY_vars_eNB->dlsch_eNB[0][0]->harq_processes[0]->rvidx = round_eNB>>1;
|
|
DLSCH_alloc_pdu2_2D[0].ndi1 = 1;
|
|
DLSCH_alloc_pdu2_2D[0].rv1 = 0;
|
|
memcpy(&dci_alloc[0].dci_pdu[0],&DLSCH_alloc_pdu2_2D[0],sizeof(DCI2_5MHz_2D_M10PRB_TDD_t));
|
|
}
|
|
else {
|
|
|
|
PHY_vars_eNB->dlsch_eNB[0][0]->harq_processes[0]->Ndi = 0;
|
|
PHY_vars_eNB->dlsch_eNB[0][0]->harq_processes[0]->rvidx = round_eNB>>1;
|
|
DLSCH_alloc_pdu2_2D[0].ndi1 = 0;
|
|
DLSCH_alloc_pdu2_2D[0].rv1 = round_eNB>>1;
|
|
memcpy(&dci_alloc[0].dci_pdu[0],&DLSCH_alloc_pdu2_2D[0],sizeof(DCI2_5MHz_2D_M10PRB_TDD_t));
|
|
}
|
|
|
|
//modif start UL
|
|
#ifdef OFDMA_ULSCH
|
|
if (srs_flag)
|
|
generate_srs_tx(PHY_vars_UE,0,AMP,subframe_UL);
|
|
generate_drs_pusch(PHY_vars_UE,0,AMP,subframe_UL,first_rb,nb_rb_UE);
|
|
|
|
#else
|
|
if (srs_flag)
|
|
generate_srs_tx(PHY_vars_UE,0,scfdma_amps[nb_rb_UE],subframe_UL);
|
|
generate_drs_pusch(PHY_vars_UE,0,
|
|
scfdma_amps[nb_rb_UE],subframe_UL,
|
|
PHY_vars_UE->ulsch_ue[0]->harq_processes[0]->first_rb,
|
|
PHY_vars_UE->ulsch_ue[0]->harq_processes[0]->nb_rb);
|
|
#endif
|
|
//printf("harq_pid = %d\n\n",harq_pid);
|
|
if (ulsch_encoding(input_buffer_UE, //prob
|
|
&PHY_vars_UE->lte_frame_parms,
|
|
PHY_vars_UE->ulsch_ue[0],
|
|
harq_pid,
|
|
1, // transmission mode
|
|
control_only_flag,
|
|
1// Nbundled
|
|
)==-1) {
|
|
printf("ulsim.c Problem with ulsch_encoding\n");
|
|
exit(-1);
|
|
}
|
|
|
|
#ifdef OFDMA_ULSCH
|
|
ulsch_modulation(PHY_vars_UE->lte_ue_common_vars.txdataF,AMP,subframe_UL,&PHY_vars_UE->lte_frame_parms,PHY_vars_UE->ulsch_ue[0],cooperation_flag);
|
|
#else
|
|
// printf("Generating PUSCH in subframe %d with amp %d, nb_rb %d\n",subframe,scfdma_amps[nb_rb_UE],nb_rb_UE);
|
|
ulsch_modulation(PHY_vars_UE->lte_ue_common_vars.txdataF,scfdma_amps[nb_rb_UE],
|
|
subframe_UL,&PHY_vars_UE->lte_frame_parms,
|
|
PHY_vars_UE->ulsch_ue[0],cooperation_flag);
|
|
#endif
|
|
//modif end UL
|
|
|
|
//********************** DL part
|
|
num_pdcch_symbols_2 = generate_dci_top(num_ue_spec_dci,
|
|
num_common_dci,
|
|
dci_alloc,
|
|
0,
|
|
1024,
|
|
&PHY_vars_eNB->lte_frame_parms,
|
|
PHY_vars_eNB->lte_eNB_common_vars.txdataF[eNB_id],
|
|
subframe);
|
|
|
|
if (num_pdcch_symbols_2 > num_pdcch_symbols) {
|
|
msg("Error: given num_pdcch_symbols not big enough\n");
|
|
exit(-1);
|
|
}
|
|
|
|
|
|
for (k=0;k<n_users;k++) {
|
|
coded_bits_per_codeword = get_G(&PHY_vars_eNB->lte_frame_parms,
|
|
PHY_vars_eNB->dlsch_eNB[k][0]->nb_rb,
|
|
PHY_vars_eNB->dlsch_eNB[k][0]->rb_alloc,
|
|
get_Qm(PHY_vars_eNB->dlsch_eNB[k][0]->harq_processes[0]->mcs),
|
|
num_pdcch_symbols,
|
|
subframe);
|
|
|
|
#ifdef TBS_FIX
|
|
tbs = (double)3*dlsch_tbs25[get_I_TBS(PHY_vars_eNB->dlsch_eNB[k][0]->harq_processes[0]->mcs)][PHY_vars_eNB->dlsch_eNB[k][0]->nb_rb-1]/4;
|
|
#else
|
|
tbs = (double)dlsch_tbs25[get_I_TBS(PHY_vars_eNB->dlsch_eNB[k][0]->harq_processes[0]->mcs)][PHY_vars_eNB->dlsch_eNB[k][0]->nb_rb-1];
|
|
#endif
|
|
|
|
rate = (double)tbs/(double)coded_bits_per_codeword;
|
|
|
|
uncoded_ber_bit = (short*) malloc(2*coded_bits_per_codeword);
|
|
|
|
if (trials==0 && round_eNB==0)
|
|
printf("Rate = %f (G %d, TBS %d, TBS_UE %d,mod %d, pdcch_sym %d)\n",
|
|
rate,
|
|
coded_bits_per_codeword,
|
|
tbs,
|
|
PHY_vars_UE->ulsch_ue[0]->harq_processes[harq_pid]->TBS,//b
|
|
get_Qm(PHY_vars_eNB->dlsch_eNB[k][0]->harq_processes[0]->mcs),
|
|
num_pdcch_symbols);
|
|
|
|
|
|
// use the PMI from previous trial
|
|
if (DLSCH_alloc_pdu2_2D[0].tpmi == 5) {
|
|
PHY_vars_eNB->dlsch_eNB[0][0]->pmi_alloc = quantize_subband_pmi(&PHY_vars_UE->PHY_measurements,0);
|
|
PHY_vars_UE->dlsch_ue[0][0]->pmi_alloc = quantize_subband_pmi(&PHY_vars_UE->PHY_measurements,0);
|
|
if (n_users>1)
|
|
PHY_vars_eNB->dlsch_eNB[1][0]->pmi_alloc = (PHY_vars_eNB->dlsch_eNB[0][0]->pmi_alloc ^ 0x1555);
|
|
/*
|
|
if ((trials<10) && (round_eNB==0)) {
|
|
printf("tx PMI UE0 %x (pmi_feedback %d)\n",pmi2hex_2Ar1(PHY_vars_eNB->dlsch_eNB[0][0]->pmi_alloc),pmi_feedback);
|
|
if (transmission_mode ==5)
|
|
printf("tx PMI UE1 %x\n",pmi2hex_2Ar1(PHY_vars_eNB->dlsch_eNB[1][0]->pmi_alloc));
|
|
}
|
|
*/
|
|
}
|
|
|
|
if (dlsch_encoding(input_buffer[k],
|
|
&PHY_vars_eNB->lte_frame_parms,
|
|
num_pdcch_symbols,
|
|
PHY_vars_eNB->dlsch_eNB[k][0],
|
|
subframe)<0)
|
|
exit(-1);
|
|
|
|
// printf("Did not Crash here 1\n");
|
|
PHY_vars_eNB->dlsch_eNB[k][0]->rnti = n_rnti+k;
|
|
dlsch_scrambling(&PHY_vars_eNB->lte_frame_parms,
|
|
num_pdcch_symbols,
|
|
PHY_vars_eNB->dlsch_eNB[k][0],
|
|
coded_bits_per_codeword,
|
|
0,
|
|
subframe<<1);
|
|
if (n_frames==1) {
|
|
for (s=0;s<PHY_vars_eNB->dlsch_eNB[k][0]->harq_processes[0]->C;s++) {
|
|
if (s<PHY_vars_eNB->dlsch_eNB[k][0]->harq_processes[0]->Cminus)
|
|
Kr = PHY_vars_eNB->dlsch_eNB[k][0]->harq_processes[0]->Kminus;
|
|
else
|
|
Kr = PHY_vars_eNB->dlsch_eNB[k][0]->harq_processes[0]->Kplus;
|
|
|
|
Kr_bytes = Kr>>3;
|
|
|
|
for (i=0;i<Kr_bytes;i++)
|
|
printf("%d : (%x)\n",i,PHY_vars_eNB->dlsch_eNB[k][0]->harq_processes[0]->c[s][i]);
|
|
}
|
|
}
|
|
// printf("Did not Crash here 2\n");
|
|
|
|
if (transmission_mode == 5) {
|
|
amp = (s16)(((s32)1024*ONE_OVER_SQRT2_Q15)>>15);
|
|
}
|
|
else
|
|
amp = 1024;
|
|
|
|
// if (k==1)
|
|
// amp=0;
|
|
re_allocated = dlsch_modulation(PHY_vars_eNB->lte_eNB_common_vars.txdataF[eNB_id],
|
|
amp,
|
|
subframe,
|
|
&PHY_vars_eNB->lte_frame_parms,
|
|
num_pdcch_symbols,
|
|
PHY_vars_eNB->dlsch_eNB[k][0]);
|
|
|
|
// printf("Did not Crash here 3\n");
|
|
if (trials==0 && round_eNB==0)
|
|
printf("RE count %d\n",re_allocated);
|
|
|
|
if (num_layers>1)
|
|
re_allocated = dlsch_modulation(PHY_vars_eNB->lte_eNB_common_vars.txdataF[eNB_id],
|
|
1024,
|
|
subframe,
|
|
&PHY_vars_eNB->lte_frame_parms,
|
|
num_pdcch_symbols,
|
|
PHY_vars_eNB->dlsch_eNB[k][1]);
|
|
} //n_users
|
|
// printf("Did not Crash here 4\n");
|
|
|
|
generate_pilots(PHY_vars_eNB,
|
|
PHY_vars_eNB->lte_eNB_common_vars.txdataF[eNB_id],
|
|
1024,
|
|
LTE_NUMBER_OF_SUBFRAMES_PER_FRAME);
|
|
|
|
|
|
#ifdef IFFT_FPGA
|
|
|
|
if (n_frames==1) {
|
|
write_output("txsigF0.m","txsF0", PHY_vars_eNB->lte_eNB_common_vars.txdataF[0][0],300*nsymb*10,1,4);
|
|
//modif start UL
|
|
write_output("txsigF0_UE.m","txsF0_UE", &PHY_vars_UE->lte_ue_common_vars.txdataF[0][frame_parms->ofdm_symbol_size*nsymb*subframe_UL],frame_parms->ofdm_symbol_size*nsymb,1,1);
|
|
//modif end UL
|
|
if (PHY_vars_eNB->lte_frame_parms.nb_antennas_tx>1)
|
|
write_output("txsigF1.m","txsF1", PHY_vars_eNB->lte_eNB_common_vars.txdataF[0][1],300*nsymb*10,1,4);
|
|
}
|
|
|
|
// do table lookup and write results to txdataF2
|
|
for (aa=0;aa<PHY_vars_eNB->lte_frame_parms.nb_antennas_tx;aa++) {
|
|
ind = 0;
|
|
for (i=0;i<FRAME_LENGTH_COMPLEX_SAMPLES_NO_PREFIX;i++)
|
|
if (((i%512)>=1) && ((i%512)<=150)) {
|
|
txdataF2[aa][i] = ((int*)mod_table)[PHY_vars_eNB->lte_eNB_common_vars.txdataF[eNB_id][aa][ind++]];
|
|
//modif start UL
|
|
txdataF2_UE[aa][i] = ((int*)mod_table)[PHY_vars_UE->lte_ue_common_vars.txdataF[aa][l++]];
|
|
}
|
|
//modif end UL
|
|
else if ((i%512)>=362) {
|
|
txdataF2[aa][i] = ((int*)mod_table)[PHY_vars_eNB->lte_eNB_common_vars.txdataF[eNB_id][aa][ind++]];
|
|
//modif start UL
|
|
txdataF2_UE[aa][i] = ((int*)mod_table)[PHY_vars_UE->lte_ue_common_vars.txdataF[aa][l++]];
|
|
}
|
|
//modif end UL
|
|
else {
|
|
txdataF2[aa][i] = 0;
|
|
//modif start UL
|
|
txdataF2_UE[aa][i] = 0;
|
|
}
|
|
//modif end UL
|
|
// printf("ind=%d\n",ind);
|
|
}
|
|
|
|
if (n_frames==1) {
|
|
write_output("txsigF20.m","txsF20", txdataF2[0], FRAME_LENGTH_COMPLEX_SAMPLES_NO_PREFIX,1,1);
|
|
//modif start UL
|
|
write_output("txsigF20_UE.m","txsF20_UE", txdataF2_UE[0],FRAME_LENGTH_COMPLEX_SAMPLES_NO_PREFIX,1,1);
|
|
//modif end UL
|
|
if (PHY_vars_eNB->lte_frame_parms.nb_antennas_tx>1)
|
|
write_output("txsigF21.m","txsF21", txdataF2[1], FRAME_LENGTH_COMPLEX_SAMPLES_NO_PREFIX,1,1);
|
|
}
|
|
|
|
tx_lev = 0;
|
|
for (aa=0; aa<PHY_vars_eNB->lte_frame_parms.nb_antennas_tx; aa++) {
|
|
if (frame_parms->Ncp == 1)
|
|
PHY_ofdm_mod(&txdataF2[aa][subframe*nsymb*PHY_vars_eNB->lte_frame_parms.ofdm_symbol_size], // input
|
|
&txdata[aa][subframe*PHY_vars_eNB->lte_frame_parms.samples_per_tti], // output
|
|
PHY_vars_eNB->lte_frame_parms.log2_symbol_size, // log2_fft_size
|
|
2*nsymb,//NUMBER_OF_SYMBOLS_PER_FRAME, // number of symbols
|
|
PHY_vars_eNB->lte_frame_parms.nb_prefix_samples, // number of prefix samples
|
|
PHY_vars_eNB->lte_frame_parms.twiddle_ifft, // IFFT twiddle factors
|
|
PHY_vars_eNB->lte_frame_parms.rev, // bit-reversal permutation
|
|
CYCLIC_PREFIX);
|
|
else {
|
|
normal_prefix_mod(&txdataF2[aa][subframe*nsymb*PHY_vars_eNB->lte_frame_parms.ofdm_symbol_size],
|
|
&txdata[aa][subframe*PHY_vars_eNB->lte_frame_parms.samples_per_tti],
|
|
2*nsymb,
|
|
frame_parms);
|
|
}
|
|
//modif start UL
|
|
for (aa=0; aa<1; aa++) {
|
|
if (frame_parms->Ncp == 1)
|
|
PHY_ofdm_mod(txdataF2_UE[aa], // input
|
|
txdata_UE[aa], // 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(txdataF2_UE[aa],txdata_UE[aa],nsymb,frame_parms);
|
|
|
|
|
|
}
|
|
//modif end UL
|
|
|
|
tx_lev += signal_energy(&txdata[aa][(PHY_vars_eNB->lte_frame_parms.ofdm_symbol_size+PHY_vars_eNB->lte_frame_parms.nb_prefix_samples0)],
|
|
OFDM_SYMBOL_SIZE_COMPLEX_SAMPLES);
|
|
}
|
|
|
|
|
|
#else //IFFT_FPGA
|
|
|
|
if (n_frames==1) {
|
|
write_output("txsigF0.m","txsF0", PHY_vars_eNB->lte_eNB_common_vars.txdataF[eNB_id][0],FRAME_LENGTH_COMPLEX_SAMPLES_NO_PREFIX,1,1);
|
|
//modif start UL
|
|
write_output("txsigF0_UE.m","txsF0_UE", &PHY_vars_UE->lte_ue_common_vars.txdataF[0][512*nsymb*subframe_UL],512*nsymb,1,1);
|
|
//modif end UL
|
|
if (PHY_vars_eNB->lte_frame_parms.nb_antennas_tx>1)
|
|
write_output("txsigF1.m","txsF1", PHY_vars_eNB->lte_eNB_common_vars.txdataF[eNB_id][1],FRAME_LENGTH_COMPLEX_SAMPLES_NO_PREFIX,1,1);
|
|
}
|
|
|
|
tx_lev = 0;
|
|
for (aa=0; aa<PHY_vars_eNB->lte_frame_parms.nb_antennas_tx; aa++) {
|
|
if (frame_parms->Ncp == 1)
|
|
PHY_ofdm_mod(&PHY_vars_eNB->lte_eNB_common_vars.txdataF[eNB_id][aa][subframe*nsymb*PHY_vars_eNB->lte_frame_parms.ofdm_symbol_size], // input
|
|
&txdata[aa][subframe*PHY_vars_eNB->lte_frame_parms.samples_per_tti], // output
|
|
PHY_vars_eNB->lte_frame_parms.log2_symbol_size, // log2_fft_size
|
|
2*nsymb,//NUMBER_OF_SYMBOLS_PER_FRAME, // number of symbols
|
|
PHY_vars_eNB->lte_frame_parms.nb_prefix_samples, // number of prefix samples
|
|
PHY_vars_eNB->lte_frame_parms.twiddle_ifft, // IFFT twiddle factors
|
|
PHY_vars_eNB->lte_frame_parms.rev, // bit-reversal permutation
|
|
CYCLIC_PREFIX);
|
|
else {
|
|
normal_prefix_mod(&PHY_vars_eNB->lte_eNB_common_vars.txdataF[eNB_id][aa][subframe*nsymb*PHY_vars_eNB->lte_frame_parms.ofdm_symbol_size],
|
|
&txdata[aa][subframe*PHY_vars_eNB->lte_frame_parms.samples_per_tti],
|
|
2*nsymb,
|
|
frame_parms);
|
|
}
|
|
|
|
tx_lev += signal_energy(&txdata[aa][subframe*PHY_vars_eNB->lte_frame_parms.samples_per_tti],
|
|
PHY_vars_eNB->lte_frame_parms.samples_per_tti);
|
|
}
|
|
//modif start UL
|
|
tx_lev_UE=0;
|
|
for (aa=0; aa<1; aa++) {
|
|
if (frame_parms->Ncp == 1)
|
|
PHY_ofdm_mod(&PHY_vars_UE->lte_ue_common_vars.txdataF[aa][subframe_UL*nsymb*OFDM_SYMBOL_SIZE_COMPLEX_SAMPLES_NO_PREFIX], // input
|
|
&txdata_UE[aa][PHY_vars_eNB->lte_frame_parms.samples_per_tti*subframe_UL], // 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_UL*nsymb*OFDM_SYMBOL_SIZE_COMPLEX_SAMPLES_NO_PREFIX],
|
|
&txdata_UE[aa][PHY_vars_eNB->lte_frame_parms.samples_per_tti*subframe_UL],
|
|
nsymb,
|
|
frame_parms);
|
|
|
|
#ifndef OFDMA_ULSCH
|
|
apply_7_5_kHz(PHY_vars_UE,subframe_UL<<1);
|
|
apply_7_5_kHz(PHY_vars_UE,1+(subframe_UL<<1));
|
|
#endif
|
|
|
|
tx_lev_UE += signal_energy(&txdata_UE[aa][PHY_vars_eNB->lte_frame_parms.samples_per_tti*subframe_UL],
|
|
OFDM_SYMBOL_SIZE_COMPLEX_SAMPLES);
|
|
}
|
|
//modif end UL
|
|
#endif //IFFT_FPGA
|
|
|
|
tx_lev_dB = (unsigned int) dB_fixed(tx_lev);
|
|
//printf("tx_lev = %d (%d dB)\n",tx_lev,tx_lev_dB);
|
|
|
|
if (n_frames==1) {
|
|
write_output("txsig0.m","txs0", txdata[0],FRAME_LENGTH_COMPLEX_SAMPLES,1,1);
|
|
}
|
|
|
|
} //input_fd
|
|
else { // Read signal from file
|
|
i=0;
|
|
while (!feof(input_fd)) {
|
|
fscanf(input_fd,"%s %s",input_val_str,input_val_str2);
|
|
|
|
if ((i%4)==0) {
|
|
((short*)txdata[0])[i/2] = (short)((1<<15)*strtod(input_val_str,NULL));
|
|
((short*)txdata[0])[(i/2)+1] = (short)((1<<15)*strtod(input_val_str2,NULL));
|
|
if ((i/4)<100)
|
|
printf("sample %d => %e + j%e (%d +j%d)\n",i/4,strtod(input_val_str,NULL),strtod(input_val_str2,NULL),((short*)txdata[0])[i/4],((short*)txdata[0])[(i/4)+1]);//1,input_val2,);
|
|
}
|
|
i++;
|
|
if (i>(FRAME_LENGTH_SAMPLES))
|
|
break;
|
|
}
|
|
printf("Read in %d samples\n",i/4);
|
|
write_output("txsig0.m","txs0", txdata[0],2*frame_parms->samples_per_tti,1,1);
|
|
// write_output("txsig1.m","txs1", txdata[1],FRAME_LENGTH_COMPLEX_SAMPLES,1,1);
|
|
tx_lev = signal_energy(&txdata[0][0],
|
|
OFDM_SYMBOL_SIZE_COMPLEX_SAMPLES);
|
|
tx_lev_dB = (unsigned int) dB_fixed(tx_lev);
|
|
}// else read from file
|
|
|
|
//modif start UL
|
|
tx_lev_UE_dB = (unsigned int) dB_fixed(tx_lev_UE);
|
|
if (n_frames==1) {
|
|
write_output("txsig0_UE.m","txs0_UE", txdata_UE[0],FRAME_LENGTH_COMPLEX_SAMPLES,1,1);
|
|
}
|
|
// multipath channel
|
|
|
|
for (i=0;i<PHY_vars_eNB->lte_frame_parms.samples_per_tti;i++) {
|
|
for (aa=0;aa<1;aa++) {
|
|
if (awgn_flag == 0) {
|
|
s_re_UE[aa][i] = ((double)(((short *)&txdata_UE[aa][PHY_vars_eNB->lte_frame_parms.samples_per_tti*subframe_UL]))[(i<<1)]);
|
|
s_im_UE[aa][i] = ((double)(((short *)&txdata_UE[aa][PHY_vars_eNB->lte_frame_parms.samples_per_tti*subframe_UL]))[(i<<1)+1]);
|
|
}
|
|
else {
|
|
r_re_UE[aa][i] = ((double)(((short *)&txdata_UE[aa][PHY_vars_eNB->lte_frame_parms.samples_per_tti*subframe_UL]))[(i<<1)]);
|
|
r_im_UE[aa][i] = ((double)(((short *)&txdata_UE[aa][PHY_vars_eNB->lte_frame_parms.samples_per_tti*subframe_UL]))[(i<<1)+1]);
|
|
}
|
|
}
|
|
}
|
|
|
|
//printf("PHY_vars_eNB->lte_frame_parms.samples_per_tti = %d\n", PHY_vars_eNB->lte_frame_parms.samples_per_tti);
|
|
|
|
|
|
// filtre RF tx -> s_re_UE
|
|
//UL
|
|
if (decalibration == 1) {
|
|
for (aa=0;aa<PHY_vars_UE->lte_frame_parms.nb_antennas_tx;aa++) {
|
|
real_fir(s_re_UE[aa], s_im_UE[aa], s_re_out, s_im_out, s_coeffs_UE, s_ord_fir_UE, PHY_vars_eNB->lte_frame_parms.samples_per_tti);
|
|
|
|
for (i=0;i<PHY_vars_eNB->lte_frame_parms.samples_per_tti;i++) {
|
|
s_re_UE[aa][i] = s_re_out[i];
|
|
s_im_UE[aa][i] = s_im_out[i];
|
|
}
|
|
}
|
|
}
|
|
|
|
//UL
|
|
|
|
if (phase_offset == 1) {
|
|
for (aa=0;aa<PHY_vars_UE->lte_frame_parms.nb_antennas_rx;aa++) {
|
|
//printf("phase_in_UL avant = %f\n", phase_in_UL);
|
|
phase_offsets(s_re_UE[aa], s_im_UE[aa], s_re_out, s_im_out, PHY_vars_eNB->lte_frame_parms.samples_per_tti, &phase_in_UL, phase_inc_UL, -1);
|
|
|
|
for (i=0;i<PHY_vars_eNB->lte_frame_parms.samples_per_tti;i++) {
|
|
s_re_UE[aa][i] = s_re_out[i];
|
|
s_im_UE[aa][i] = s_im_out[i];
|
|
}
|
|
//printf("phase_in_UL apres = %f\n", phase_in_UL);
|
|
}
|
|
}
|
|
|
|
//modif end UL
|
|
// printf("Copying tx ..., nsymb %d (n_tx %d), awgn %d\n",nsymb,PHY_vars_eNB->lte_frame_parms.nb_antennas_tx,awgn_flag);
|
|
for (i=0;i<2*nsymb*OFDM_SYMBOL_SIZE_COMPLEX_SAMPLES;i++) {
|
|
for (aa=0;aa<1;aa++) {//PHY_vars_eNB->lte_frame_parms.nb_antennas_tx
|
|
if (awgn_flag == 0) {
|
|
s_re[aa][i] = ((double)(((short *)txdata[aa]))[(2*subframe*PHY_vars_UE->lte_frame_parms.samples_per_tti) + (i<<1)]);
|
|
s_im[aa][i] = ((double)(((short *)txdata[aa]))[(2*subframe*PHY_vars_UE->lte_frame_parms.samples_per_tti) +(i<<1)+1]);
|
|
}
|
|
else {
|
|
for (aarx=0;aarx<PHY_vars_UE->lte_frame_parms.nb_antennas_rx;aarx++) {
|
|
if (aa==0) {
|
|
r_re[aarx][i] = ((double)(((short *)txdata[aa]))[(2*subframe*PHY_vars_UE->lte_frame_parms.samples_per_tti) +(i<<1)]);
|
|
r_im[aarx][i] = ((double)(((short *)txdata[aa]))[(2*subframe*PHY_vars_UE->lte_frame_parms.samples_per_tti) +(i<<1)+1]);
|
|
}
|
|
else {
|
|
r_re[aarx][i] += ((double)(((short *)txdata[aa]))[(2*subframe*PHY_vars_UE->lte_frame_parms.samples_per_tti) +(i<<1)]);
|
|
r_im[aarx][i] += ((double)(((short *)txdata[aa]))[(2*subframe*PHY_vars_UE->lte_frame_parms.samples_per_tti) +(i<<1)+1]);
|
|
}
|
|
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
// filtre RF tx -> s_re
|
|
if (decalibration == 1) {
|
|
for (aa=0;aa<PHY_vars_eNB->lte_frame_parms.nb_antennas_tx;aa++) {
|
|
real_fir(s_re[aa], s_im[aa], s_re_out, s_im_out, s_coeffs_eNB, s_ord_fir_eNB, 2*nsymb*OFDM_SYMBOL_SIZE_COMPLEX_SAMPLES);
|
|
|
|
for (i=0;i<2*nsymb*OFDM_SYMBOL_SIZE_COMPLEX_SAMPLES;i++) {
|
|
s_re[aa][i] = s_re_out[i];
|
|
s_im[aa][i] = s_im_out[i];
|
|
}
|
|
}
|
|
}
|
|
|
|
// n0_pow_dB = tx_lev_dB + 10*log10(512/(NB_RB*12)) + SNR;
|
|
// generate new channel if pmi_feedback==0, otherwise hold channel
|
|
if(abstx){
|
|
if (trials==0 && round_eNB==0){
|
|
if (awgn_flag == 0) {
|
|
if(SNR==snr0){
|
|
if(pmi_feedback==0)
|
|
multipath_channel(eNB2UE,s_re,s_im,r_re,r_im,
|
|
2*nsymb*OFDM_SYMBOL_SIZE_COMPLEX_SAMPLES,1);
|
|
else
|
|
multipath_channel(eNB2UE,s_re,s_im,r_re,r_im,
|
|
2*nsymb*OFDM_SYMBOL_SIZE_COMPLEX_SAMPLES,1);//b
|
|
}else{
|
|
multipath_channel(eNB2UE,s_re,s_im,r_re,r_im,
|
|
2*nsymb*OFDM_SYMBOL_SIZE_COMPLEX_SAMPLES,1);
|
|
}
|
|
|
|
freq_channel(eNB2UE, 25,51);
|
|
snr=pow(10.0,.1*SNR);
|
|
fprintf(csv_fd,"%f,",SNR);
|
|
|
|
for (u=0;u<50;u++){
|
|
abs_channel = (eNB2UE->chF[0][u].x*eNB2UE->chF[0][u].x + eNB2UE->chF[0][u].y*eNB2UE->chF[0][u].y);
|
|
if(transmission_mode==5){
|
|
fprintf(csv_fd,"%e,",abs_channel);
|
|
}
|
|
else{
|
|
pilot_sinr = 10*log10(snr*abs_channel);
|
|
fprintf(csv_fd,"%e,",pilot_sinr);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
else{
|
|
if (awgn_flag == 0) {
|
|
multipath_channel(eNB2UE,s_re,s_im,r_re,r_im,
|
|
2*nsymb*OFDM_SYMBOL_SIZE_COMPLEX_SAMPLES,1);
|
|
}
|
|
}
|
|
}
|
|
|
|
else{ //ABStraction
|
|
if (awgn_flag == 0) {
|
|
|
|
if (pmi_feedback==0) {
|
|
if (trials<n_K-1)
|
|
multipath_channel(eNB2UE,s_re,s_im,r_re,r_im,
|
|
2*nsymb*OFDM_SYMBOL_SIZE_COMPLEX_SAMPLES,1);//b
|
|
else
|
|
multipath_channel(eNB2UE,s_re,s_im,r_re,r_im,
|
|
2*nsymb*OFDM_SYMBOL_SIZE_COMPLEX_SAMPLES,0);//b
|
|
}
|
|
else
|
|
multipath_channel(eNB2UE,s_re,s_im,r_re,r_im,
|
|
2*nsymb*OFDM_SYMBOL_SIZE_COMPLEX_SAMPLES,1);//b
|
|
}
|
|
}//ABStraction
|
|
|
|
//DL
|
|
|
|
if (phase_offset == 1) {
|
|
for (aa=0;aa<PHY_vars_UE->lte_frame_parms.nb_antennas_rx;aa++) {
|
|
//printf("phase_in_DL avant = %f\n", phase_in_DL);
|
|
phase_offsets(r_re[aa], r_im[aa], r_re_out, r_im_out, 2*nsymb*OFDM_SYMBOL_SIZE_COMPLEX_SAMPLES, &phase_in_DL, phase_inc_DL, 1);
|
|
|
|
for (i=0;i<2*nsymb*OFDM_SYMBOL_SIZE_COMPLEX_SAMPLES;i++) {
|
|
r_re[aa][i] = r_re_out[i];
|
|
r_im[aa][i] = r_im_out[i];
|
|
}
|
|
//printf("phase_in_DL apres = %f\n", phase_in_DL);
|
|
}
|
|
}
|
|
|
|
// filtre RF rx -> r_re
|
|
if (decalibration == 1) {
|
|
for (aa=0;aa<PHY_vars_UE->lte_frame_parms.nb_antennas_rx;aa++) {
|
|
real_fir(r_re[aa], r_im[aa], r_re_out, r_im_out, r_coeffs_eNB, r_ord_fir_eNB, 2*nsymb*OFDM_SYMBOL_SIZE_COMPLEX_SAMPLES);
|
|
|
|
for (i=0;i<2*nsymb*OFDM_SYMBOL_SIZE_COMPLEX_SAMPLES;i++) {
|
|
r_re[aa][i] = r_re_out[i];
|
|
r_im[aa][i] = r_im_out[i];
|
|
}
|
|
}
|
|
}
|
|
|
|
sigma2_dB = 10*log10((double)tx_lev) +10*log10(PHY_vars_eNB->lte_frame_parms.ofdm_symbol_size/(NB_RB*12)) - SNR;
|
|
|
|
//AWGN
|
|
sigma2 = pow(10,sigma2_dB/10);
|
|
|
|
// n0_pow_dB = tx_lev_dB + 10*log10(512/(NB_RB*12)) + SNR;
|
|
// printf("Sigma2 %f (sigma2_dB %f)\n",sigma2,sigma2_dB);
|
|
if (pmi_feedback==0) {
|
|
for (i=0; i<2*nsymb*OFDM_SYMBOL_SIZE_COMPLEX_SAMPLES; i++) {
|
|
for (aa=0;aa<PHY_vars_eNB->lte_frame_parms.nb_antennas_rx;aa++) {
|
|
// printf("s_re[0][%d]=> %f , r_re[0][%d]=> %f\n",i,s_re[aa][i],i,r_re[aa][i]);
|
|
((short*) PHY_vars_UE->lte_ue_common_vars.rxdata[aa])[(2*subframe*PHY_vars_UE->lte_frame_parms.samples_per_tti)+2*i] =
|
|
(short) (r_re[aa][i] + sqrt(sigma2/2)*gaussdouble(0.0,1.0));
|
|
((short*) PHY_vars_UE->lte_ue_common_vars.rxdata[aa])[(2*subframe*PHY_vars_UE->lte_frame_parms.samples_per_tti)+2*i+1] =
|
|
(short) (r_im[aa][i] + (iqim*r_re[aa][i]) + sqrt(sigma2/2)*gaussdouble(0.0,1.0));
|
|
}
|
|
}
|
|
}
|
|
else {
|
|
for (i=0; i<2*nsymb*OFDM_SYMBOL_SIZE_COMPLEX_SAMPLES; i++) {
|
|
for (aa=0;aa<PHY_vars_eNB->lte_frame_parms.nb_antennas_rx;aa++) {
|
|
// printf("s_re[0][%d]=> %f , r_re[0][%d]=> %f\n",i,s_re[aa][i],i,r_re[aa][i]);
|
|
((short*) PHY_vars_UE->lte_ue_common_vars.rxdata[aa])[(2*subframe*PHY_vars_UE->lte_frame_parms.samples_per_tti)+2*i] = (short) (r_re[aa][i]);
|
|
((short*) PHY_vars_UE->lte_ue_common_vars.rxdata[aa])[(2*subframe*PHY_vars_UE->lte_frame_parms.samples_per_tti)+2*i+1] = (short) (r_im[aa][i]);
|
|
}
|
|
}
|
|
}
|
|
//modif start UL
|
|
if (awgn_flag == 0) {
|
|
if (trials<n_K-1)
|
|
multipath_channel(UE2eNB,s_re_UE,s_im_UE,r_re_UE,r_im_UE,
|
|
PHY_vars_eNB->lte_frame_parms.samples_per_tti,1);//b
|
|
else
|
|
multipath_channel(UE2eNB,s_re_UE,s_im_UE,r_re_UE,r_im_UE,
|
|
PHY_vars_eNB->lte_frame_parms.samples_per_tti,0);//b
|
|
|
|
//multipath_channel(UE2eNB,s_re_UE,s_im_UE,r_re_UE,r_im_UE,
|
|
// PHY_vars_eNB->lte_frame_parms.samples_per_tti,0);//b
|
|
}
|
|
//(double)tx_lev_dB - (SNR+sigma2_UE_dB));
|
|
|
|
// filtre RF rx -> r_re
|
|
if (decalibration == 1) {
|
|
for (aa=0;aa<PHY_vars_eNB->lte_frame_parms.nb_antennas_rx;aa++) {
|
|
real_fir(r_re_UE[aa], r_im_UE[aa], r_re_out, r_im_out, r_coeffs_UE, r_ord_fir_UE, PHY_vars_eNB->lte_frame_parms.samples_per_tti);
|
|
|
|
for (i=0;i<PHY_vars_eNB->lte_frame_parms.samples_per_tti;i++) {
|
|
r_re_UE[aa][i] = r_re_out[i];
|
|
r_im_UE[aa][i] = r_im_out[i];
|
|
}
|
|
}
|
|
}
|
|
|
|
sigma2_UE_dB = tx_lev_UE_dB +10*log10(PHY_vars_UE->lte_frame_parms.ofdm_symbol_size/(PHY_vars_UE->lte_frame_parms.N_RB_DL*12)) - SNR;
|
|
|
|
//AWGN
|
|
sigma2_UE = pow(10,sigma2_UE_dB/10);
|
|
|
|
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_UL])[2*i] = (short) (r_re_UE[aa][i] + sqrt(sigma2_UE/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_UL])[2*i+1] = (short) (r_im_UE[aa][i] + (iqim*r_re_UE[aa][i]) + sqrt(sigma2_UE/2)*gaussdouble(0.0,1.0));
|
|
}
|
|
}
|
|
|
|
//modif end UL
|
|
|
|
// lte_sync_time_init(PHY_vars_eNB->lte_frame_parms,lte_ue_common_vars);
|
|
// lte_sync_time(lte_ue_common_vars->rxdata, PHY_vars_eNB->lte_frame_parms);
|
|
// lte_sync_time_free();
|
|
|
|
|
|
if (n_frames==1) {
|
|
printf("RX level in null symbol %d\n",dB_fixed(signal_energy(&PHY_vars_UE->lte_ue_common_vars.rxdata[0][160+OFDM_SYMBOL_SIZE_COMPLEX_SAMPLES],OFDM_SYMBOL_SIZE_COMPLEX_SAMPLES/2)));
|
|
printf("RX level in data symbol %d\n",dB_fixed(signal_energy(&PHY_vars_UE->lte_ue_common_vars.rxdata[0][160+(2*OFDM_SYMBOL_SIZE_COMPLEX_SAMPLES)],OFDM_SYMBOL_SIZE_COMPLEX_SAMPLES/2)));
|
|
printf("rx_level Null symbol %f\n",10*log10(signal_energy_fp(r_re,r_im,1,OFDM_SYMBOL_SIZE_COMPLEX_SAMPLES/2,256+(OFDM_SYMBOL_SIZE_COMPLEX_SAMPLES))));
|
|
printf("rx_level data symbol %f\n",10*log10(signal_energy_fp(r_re,r_im,1,OFDM_SYMBOL_SIZE_COMPLEX_SAMPLES/2,256+(2*OFDM_SYMBOL_SIZE_COMPLEX_SAMPLES))));
|
|
//modif start UL
|
|
printf("rx__UE_level Null 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*(1+subframe_UL))],OFDM_SYMBOL_SIZE_COMPLEX_SAMPLES/2)));
|
|
printf("rx_UE_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_UL)],OFDM_SYMBOL_SIZE_COMPLEX_SAMPLES/2)));
|
|
//modif end UL
|
|
}
|
|
|
|
|
|
i_mod = get_Qm(mcs_eNB);
|
|
|
|
// Inner receiver scheduling for 3 slots
|
|
for (Ns=(2*subframe);Ns<((2*subframe)+3);Ns++) {
|
|
for (l=0;l<pilot2;l++) {
|
|
if (n_frames==1)
|
|
printf("Ns %d, l %d\n",Ns,l);
|
|
|
|
slot_fep(PHY_vars_UE,
|
|
l,
|
|
Ns%20,
|
|
0,
|
|
0);
|
|
|
|
#ifdef PERFECT_CE
|
|
if (awgn_flag==0) {
|
|
// fill in perfect channel estimates
|
|
freq_channel(eNB2UE,PHY_vars_UE->lte_frame_parms.N_RB_DL,301);
|
|
//write_output("channel.m","ch",desc1->ch[0],desc1->channel_length,1,8);
|
|
//write_output("channelF.m","chF",desc1->chF[0],nb_samples,1,8);
|
|
for(k=0;k<NUMBER_OF_eNB_MAX;k++) {
|
|
for(aa=0;aa<frame_parms->nb_antennas_tx;aa++)
|
|
{
|
|
for (aarx=0;aarx<frame_parms->nb_antennas_rx;aarx++)
|
|
{
|
|
for (i=0;i<frame_parms->N_RB_DL*12;i++)
|
|
{
|
|
((s16 *) PHY_vars_UE->lte_ue_common_vars.dl_ch_estimates[k][(aa<<1)+aarx])[2*i+(l*frame_parms->ofdm_symbol_size+LTE_CE_FILTER_LENGTH)*2]=(s16)(eNB2UE->chF[aarx+(aa*frame_parms->nb_antennas_rx)][i].x*AMP/2);
|
|
((s16 *) PHY_vars_UE->lte_ue_common_vars.dl_ch_estimates[k][(aa<<1)+aarx])[2*i+1+(l*frame_parms->ofdm_symbol_size+LTE_CE_FILTER_LENGTH)*2]=(s16)(eNB2UE->chF[aarx+(aa*frame_parms->nb_antennas_rx)][i].y*AMP/2) ;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
else {
|
|
for(aa=0;aa<frame_parms->nb_antennas_tx;aa++)
|
|
{
|
|
for (aarx=0;aarx<frame_parms->nb_antennas_rx;aarx++)
|
|
{
|
|
for (i=0;i<frame_parms->N_RB_DL*12;i++)
|
|
{
|
|
((s16 *) PHY_vars_UE->lte_ue_common_vars.dl_ch_estimates[0][(aa<<1)+aarx])[2*i+(l*frame_parms->ofdm_symbol_size+LTE_CE_FILTER_LENGTH)*2]=AMP/2;
|
|
((s16 *) PHY_vars_UE->lte_ue_common_vars.dl_ch_estimates[0][(aa<<1)+aarx])[2*i+1+(l*frame_parms->ofdm_symbol_size+LTE_CE_FILTER_LENGTH)*2]=0/2;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
#endif
|
|
|
|
|
|
if ((Ns==(2+(2*subframe))) && (l==0)) {
|
|
lte_ue_measurements(PHY_vars_UE,
|
|
subframe*PHY_vars_UE->lte_frame_parms.samples_per_tti,
|
|
1,
|
|
0);
|
|
|
|
if (transmission_mode==5 || transmission_mode==6) {
|
|
if (pmi_feedback==1) {
|
|
pmi_feedback= 0;
|
|
// printf("measured PMI %x\n",pmi2hex_2Ar1(quantize_subband_pmi(&PHY_vars_UE->PHY_measurements,0)));
|
|
goto PMI_FEEDBACK;
|
|
}
|
|
}
|
|
|
|
}
|
|
|
|
|
|
if ((Ns==(2*subframe)) && (l==pilot1)) {// process symbols 0,1,2
|
|
|
|
if (dci_flag == 1) {
|
|
rx_pdcch(&PHY_vars_UE->lte_ue_common_vars,
|
|
PHY_vars_UE->lte_ue_pdcch_vars,
|
|
&PHY_vars_UE->lte_frame_parms,
|
|
subframe,
|
|
0,
|
|
(PHY_vars_UE->lte_frame_parms.mode1_flag == 1) ? SISO : ALAMOUTI,
|
|
0);
|
|
|
|
// overwrite number of pdcch symbols
|
|
PHY_vars_UE->lte_ue_pdcch_vars[0]->num_pdcch_symbols = num_pdcch_symbols;
|
|
|
|
dci_cnt = dci_decoding_procedure(PHY_vars_UE,
|
|
dci_alloc_rx,
|
|
eNB_id,
|
|
subframe,
|
|
SI_RNTI,
|
|
RA_RNTI);
|
|
//printf("dci_cnt %d\n",dci_cnt);
|
|
|
|
if (dci_cnt==0) {
|
|
dlsch_active = 0;
|
|
if (round_eNB==0) {
|
|
dci_errors++;
|
|
round_eNB=5;
|
|
errs_eNB[0]++;
|
|
round_trials_eNB[0]++;
|
|
// printf("DCI error trial %d errs[0] %d\n",trials,errs[0]);
|
|
}
|
|
// for (i=1;i<=round_eNB;i++)
|
|
// round_trials_eNB[i]--;
|
|
// round_eNB=5;
|
|
}
|
|
|
|
for (i=0;i<dci_cnt;i++) {
|
|
//printf("Generating dlsch parameters for RNTI %x\n",dci_alloc_rx[i].rnti);
|
|
if ((dci_alloc_rx[i].rnti == n_rnti) &&
|
|
(generate_ue_dlsch_params_from_dci(0,
|
|
dci_alloc_rx[i].dci_pdu,
|
|
dci_alloc_rx[i].rnti,
|
|
dci_alloc_rx[i].format,
|
|
PHY_vars_UE->dlsch_ue[0],
|
|
&PHY_vars_UE->lte_frame_parms,
|
|
SI_RNTI,
|
|
RA_RNTI,
|
|
P_RNTI)==0)) {
|
|
//dump_dci(&PHY_vars_UE->lte_frame_parms,&dci_alloc_rx[i]);
|
|
coded_bits_per_codeword = get_G(&PHY_vars_eNB->lte_frame_parms,
|
|
PHY_vars_UE->dlsch_ue[0][0]->nb_rb,
|
|
PHY_vars_UE->dlsch_ue[0][0]->rb_alloc,
|
|
get_Qm(PHY_vars_UE->dlsch_ue[0][0]->harq_processes[PHY_vars_UE->dlsch_ue[0][0]->current_harq_pid]->mcs),
|
|
PHY_vars_UE->lte_ue_pdcch_vars[0]->num_pdcch_symbols,
|
|
subframe);
|
|
dlsch_active = 1;
|
|
}
|
|
else {
|
|
dlsch_active = 0;
|
|
if (round_eNB==0) {
|
|
dci_errors++;
|
|
errs_eNB[0]++;
|
|
round_trials_eNB[0]++;
|
|
|
|
if (n_frames==1) {
|
|
printf("DCI misdetection trial %d\n",trials);
|
|
round_eNB=5;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
} // if dci_flag==1
|
|
else { //dci_flag == 0
|
|
|
|
PHY_vars_UE->lte_ue_pdcch_vars[0]->crnti = n_rnti;
|
|
PHY_vars_UE->lte_ue_pdcch_vars[0]->num_pdcch_symbols = num_pdcch_symbols;
|
|
|
|
generate_ue_dlsch_params_from_dci(0,
|
|
&DLSCH_alloc_pdu2_2D[0],
|
|
C_RNTI,
|
|
format2_2D_M10PRB,
|
|
PHY_vars_UE->dlsch_ue[0],
|
|
&PHY_vars_UE->lte_frame_parms,
|
|
SI_RNTI,
|
|
RA_RNTI,
|
|
P_RNTI);
|
|
dlsch_active = 1;
|
|
} // if dci_flag == 1
|
|
}
|
|
|
|
if (dlsch_active == 1) {
|
|
if ((Ns==(1+(2*subframe))) && (l==0)) {// process symbols 3,4,5
|
|
|
|
for (m=PHY_vars_UE->lte_ue_pdcch_vars[0]->num_pdcch_symbols;
|
|
m<pilot2;
|
|
m++) {
|
|
if (rx_dlsch(&PHY_vars_UE->lte_ue_common_vars,
|
|
PHY_vars_UE->lte_ue_dlsch_vars,
|
|
&PHY_vars_UE->lte_frame_parms,
|
|
eNB_id,
|
|
eNB_id_i,
|
|
PHY_vars_UE->dlsch_ue[0],
|
|
subframe,
|
|
m,
|
|
(m==PHY_vars_UE->lte_ue_pdcch_vars[0]->num_pdcch_symbols)?1:0,
|
|
dual_stream_UE,
|
|
&PHY_vars_UE->PHY_measurements,
|
|
i_mod)==-1) {
|
|
|
|
dlsch_active = 0;
|
|
break;
|
|
}
|
|
}
|
|
|
|
}
|
|
|
|
if ((Ns==(1+(2*subframe))) && (l==pilot1)) {// process symbols 6,7,8
|
|
|
|
for (m=pilot2;
|
|
m<pilot3;
|
|
m++)
|
|
if (rx_dlsch(&PHY_vars_UE->lte_ue_common_vars,
|
|
PHY_vars_UE->lte_ue_dlsch_vars,
|
|
&PHY_vars_UE->lte_frame_parms,
|
|
eNB_id,
|
|
eNB_id_i,
|
|
PHY_vars_UE->dlsch_ue[0],
|
|
subframe,
|
|
m,
|
|
0,
|
|
dual_stream_UE,
|
|
&PHY_vars_UE->PHY_measurements,
|
|
i_mod)==-1) {
|
|
dlsch_active=0;
|
|
break;
|
|
}
|
|
}
|
|
|
|
if ((Ns==(2+(2*subframe))) && (l==0)) // process symbols 10,11, do deinterleaving for TTI
|
|
for (m=pilot3;
|
|
m<PHY_vars_UE->lte_frame_parms.symbols_per_tti;
|
|
m++)
|
|
if (rx_dlsch(&PHY_vars_UE->lte_ue_common_vars,
|
|
PHY_vars_UE->lte_ue_dlsch_vars,
|
|
&PHY_vars_UE->lte_frame_parms,
|
|
eNB_id,
|
|
eNB_id_i,
|
|
PHY_vars_UE->dlsch_ue[0],
|
|
subframe,
|
|
m,
|
|
0,
|
|
dual_stream_UE,
|
|
&PHY_vars_UE->PHY_measurements,
|
|
i_mod)==-1) {
|
|
dlsch_active=0;
|
|
break;
|
|
}
|
|
//modif start
|
|
//Save the channel estimate
|
|
if (trials<=n_K) {
|
|
do_quantization(PHY_vars_UE,
|
|
nsymb,
|
|
pilot1-1,
|
|
quant_v,
|
|
dl_ch_estimates,
|
|
eNB_id,
|
|
dec_f);
|
|
}
|
|
|
|
/* do_bin(dl_ch_estimates,
|
|
dl_ch_estimates_length,
|
|
input_buffer_UE,
|
|
dec_f);
|
|
write_output("buffer1.m","buffer", input_buffer_UE,dl_ch_estimates_length*quant,1,4);
|
|
exit(-1);*/
|
|
|
|
|
|
//modif end
|
|
|
|
//if ((n_frames==1) && (Ns==(2+(2*subframe))) && (l==0)) {//b
|
|
if ((SNR==snr0) && (llb==0)) {
|
|
llb=1;
|
|
|
|
write_output("ch0enb.m","ch0",eNB2UE->ch[0],eNB2UE->channel_length,1,8);
|
|
write_output("ch0ue.m","ch0",UE2eNB->ch[0],UE2eNB->channel_length,1,8);
|
|
|
|
if (PHY_vars_eNB->lte_frame_parms.nb_antennas_tx>1)
|
|
write_output("ch1.m","ch1",eNB2UE->ch[PHY_vars_eNB->lte_frame_parms.nb_antennas_rx],eNB2UE->channel_length,1,8);
|
|
|
|
//***********************common vars
|
|
write_output("rxsig0.m","rxs0", &PHY_vars_UE->lte_ue_common_vars.rxdata[0][0],10*PHY_vars_UE->lte_frame_parms.samples_per_tti,1,1);
|
|
write_output("rxsigF0.m","rxsF0", &PHY_vars_UE->lte_ue_common_vars.rxdataF[0][0],2*PHY_vars_UE->lte_frame_parms.ofdm_symbol_size*nsymb,2,1);
|
|
if (PHY_vars_UE->lte_frame_parms.nb_antennas_rx>1) {
|
|
write_output("rxsig1.m","rxs1", PHY_vars_UE->lte_ue_common_vars.rxdata[1],PHY_vars_UE->lte_frame_parms.samples_per_tti,1,1);
|
|
write_output("rxsigF1.m","rxsF1", PHY_vars_UE->lte_ue_common_vars.rxdataF[1],2*PHY_vars_UE->lte_frame_parms.ofdm_symbol_size*nsymb,2,1);
|
|
}
|
|
|
|
write_output("dlsch00_ch0.m","dl00_ch0",
|
|
&(PHY_vars_UE->lte_ue_common_vars.dl_ch_estimates[eNB_id][0][0]),
|
|
PHY_vars_UE->lte_frame_parms.ofdm_symbol_size*nsymb,1,0);
|
|
|
|
|
|
|
|
if (PHY_vars_UE->lte_frame_parms.nb_antennas_rx>1)
|
|
write_output("dlsch01_ch0.m","dl01_ch0",
|
|
&(PHY_vars_UE->lte_ue_common_vars.dl_ch_estimates[eNB_id][1][0]),
|
|
PHY_vars_UE->lte_frame_parms.ofdm_symbol_size*nsymb/2,1,1);
|
|
if (PHY_vars_eNB->lte_frame_parms.nb_antennas_tx>1)
|
|
write_output("dlsch10_ch0.m","dl10_ch0",
|
|
&(PHY_vars_UE->lte_ue_common_vars.dl_ch_estimates[eNB_id][2][0]),
|
|
PHY_vars_UE->lte_frame_parms.ofdm_symbol_size*nsymb/2,1,1);
|
|
if ((PHY_vars_UE->lte_frame_parms.nb_antennas_rx>1) && (PHY_vars_eNB->lte_frame_parms.nb_antennas_tx>1))
|
|
write_output("dlsch11_ch0.m","dl11_ch0",
|
|
&(PHY_vars_UE->lte_ue_common_vars.dl_ch_estimates[eNB_id][3][0]),
|
|
PHY_vars_UE->lte_frame_parms.ofdm_symbol_size*nsymb/2,1,1);
|
|
// exit(-1);
|
|
//dlsch_vars
|
|
dump_dlsch2(PHY_vars_UE,eNB_id,coded_bits_per_codeword);
|
|
dump_dlsch2(PHY_vars_UE,eNB_id_i,coded_bits_per_codeword);
|
|
write_output("dlsch_e.m","e",PHY_vars_eNB->dlsch_eNB[0][0]->e,coded_bits_per_codeword,1,4);
|
|
|
|
//pdcch_vars
|
|
write_output("pdcchF0_ext.m","pdcchF_ext", PHY_vars_UE->lte_ue_pdcch_vars[eNB_id]->rxdataF_ext[0],2*3*PHY_vars_UE->lte_frame_parms.ofdm_symbol_size,1,1);
|
|
write_output("pdcch00_ch0_ext.m","pdcch00_ch0_ext",PHY_vars_UE->lte_ue_pdcch_vars[eNB_id]->dl_ch_estimates_ext[0],300*3,1,1);
|
|
|
|
write_output("pdcch_rxF_comp0.m","pdcch0_rxF_comp0",PHY_vars_UE->lte_ue_pdcch_vars[eNB_id]->rxdataF_comp[0],4*300,1,1);
|
|
write_output("pdcch_rxF_llr.m","pdcch_llr",PHY_vars_UE->lte_ue_pdcch_vars[eNB_id]->llr,2400,1,4);
|
|
|
|
}
|
|
|
|
}
|
|
}
|
|
}
|
|
|
|
// calculate uncoded BLER
|
|
uncoded_ber=0;
|
|
for (i=0;i<coded_bits_per_codeword;i++)
|
|
if (PHY_vars_eNB->dlsch_eNB[0][0]->e[i] != (PHY_vars_UE->lte_ue_dlsch_vars[0]->llr[0][i]<0)) {
|
|
uncoded_ber_bit[i] = 1;
|
|
uncoded_ber++;
|
|
}
|
|
else
|
|
uncoded_ber_bit[i] = 0;
|
|
|
|
uncoded_ber/=coded_bits_per_codeword;
|
|
avg_ber += uncoded_ber;
|
|
|
|
//imran
|
|
if(abstx){
|
|
if (trials<10 && round_eNB==0 && transmission_mode==5){
|
|
for (iii=0; iii<NB_RB; iii++){
|
|
//fprintf(csv_fd, "%d, %d", (PHY_vars_UE->lte_ue_dlsch_vars[eNB_id]->pmi_ext[iii]),(PHY_vars_UE->lte_ue_dlsch_vars[eNB_id_i]->pmi_ext[iii]));
|
|
msg(" %x",(PHY_vars_UE->lte_ue_dlsch_vars[eNB_id]->pmi_ext[iii]));
|
|
// msg("Opposite Extracted pmi %x\n",(PHY_vars_UE->lte_ue_dlsch_vars[eNB_id_i]->pmi_ext[iii]));
|
|
|
|
}
|
|
}
|
|
}
|
|
|
|
|
|
PHY_vars_UE->dlsch_ue[0][0]->rnti = n_rnti;
|
|
dlsch_unscrambling(&PHY_vars_UE->lte_frame_parms,
|
|
PHY_vars_UE->lte_ue_pdcch_vars[0]->num_pdcch_symbols,
|
|
PHY_vars_UE->dlsch_ue[0][0],
|
|
coded_bits_per_codeword,
|
|
PHY_vars_UE->lte_ue_dlsch_vars[eNB_id]->llr[0],
|
|
0,
|
|
subframe<<1);
|
|
|
|
|
|
ret_eNB = dlsch_decoding(PHY_vars_UE->lte_ue_dlsch_vars[eNB_id]->llr[0],
|
|
&PHY_vars_UE->lte_frame_parms,
|
|
PHY_vars_UE->dlsch_ue[0][0],
|
|
subframe,
|
|
PHY_vars_UE->lte_ue_pdcch_vars[0]->num_pdcch_symbols);
|
|
|
|
#ifdef XFORMS
|
|
do_forms(form,
|
|
&PHY_vars_UE->lte_frame_parms,
|
|
PHY_vars_UE->lte_ue_common_vars.dl_ch_estimates_time,
|
|
PHY_vars_UE->lte_ue_common_vars.dl_ch_estimates[eNB_id],
|
|
PHY_vars_UE->lte_ue_common_vars.rxdata,
|
|
PHY_vars_UE->lte_ue_common_vars.rxdataF,
|
|
PHY_vars_UE->lte_ue_dlsch_vars[0]->rxdataF_comp[0],
|
|
PHY_vars_UE->lte_ue_dlsch_vars[3]->rxdataF_comp[0],
|
|
PHY_vars_UE->lte_ue_dlsch_vars[0]->dl_ch_rho_ext[0],
|
|
PHY_vars_UE->lte_ue_dlsch_vars[0]->llr[0],coded_bits_per_codeword);
|
|
#endif
|
|
if (ret_eNB <= MAX_TURBO_ITERATIONS) {
|
|
|
|
if (n_frames==1)
|
|
printf("No DLSCH errors found\n");
|
|
// exit(-1);
|
|
if (fix_rounds==0)
|
|
round_eNB=5;
|
|
else
|
|
round_eNB++;
|
|
}
|
|
else {
|
|
errs_eNB[round_eNB]++;
|
|
|
|
if (n_frames==1) {
|
|
//if ((n_frames==1) || (SNR>=30)) {
|
|
printf("DLSCH errors found, uncoded ber %f\n",uncoded_ber);
|
|
for (s=0;s<PHY_vars_UE->dlsch_ue[0][0]->harq_processes[0]->C;s++) {
|
|
if (s<PHY_vars_UE->dlsch_ue[0][0]->harq_processes[0]->Cminus)
|
|
Kr = PHY_vars_UE->dlsch_ue[0][0]->harq_processes[0]->Kminus;
|
|
else
|
|
Kr = PHY_vars_UE->dlsch_ue[0][0]->harq_processes[0]->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_UE->dlsch_ue[0][0]->harq_processes[0]->c[s][i],PHY_vars_UE->dlsch_ue[0][0]->harq_processes[0]->c[s][i]^PHY_vars_eNB->dlsch_eNB[0][0]->harq_processes[0]->c[s][i]);
|
|
}
|
|
write_output("rxsig0.m","rxs0", &PHY_vars_UE->lte_ue_common_vars.rxdata[0][0],10*PHY_vars_UE->lte_frame_parms.samples_per_tti,1,1);
|
|
write_output("rxsigF0.m","rxsF0", &PHY_vars_UE->lte_ue_common_vars.rxdataF[0][0],2*PHY_vars_UE->lte_frame_parms.ofdm_symbol_size*nsymb,2,1);
|
|
if (PHY_vars_UE->lte_frame_parms.nb_antennas_rx>1) {
|
|
write_output("rxsig1.m","rxs1", PHY_vars_UE->lte_ue_common_vars.rxdata[1],PHY_vars_UE->lte_frame_parms.samples_per_tti,1,1);
|
|
write_output("rxsigF1.m","rxsF1", PHY_vars_UE->lte_ue_common_vars.rxdataF[1],2*PHY_vars_UE->lte_frame_parms.ofdm_symbol_size*nsymb,2,1);
|
|
}
|
|
|
|
write_output("dlsch00_ch0.m","dl00_ch0",
|
|
&(PHY_vars_UE->lte_ue_common_vars.dl_ch_estimates[eNB_id][0][0]),
|
|
PHY_vars_UE->lte_frame_parms.ofdm_symbol_size*nsymb/2,1,1);
|
|
if (PHY_vars_UE->lte_frame_parms.nb_antennas_rx>1)
|
|
write_output("dlsch01_ch0.m","dl01_ch0",
|
|
&(PHY_vars_UE->lte_ue_common_vars.dl_ch_estimates[eNB_id][1][0]),
|
|
PHY_vars_UE->lte_frame_parms.ofdm_symbol_size*nsymb/2,1,1);
|
|
if (PHY_vars_eNB->lte_frame_parms.nb_antennas_tx>1)
|
|
write_output("dlsch10_ch0.m","dl10_ch0",
|
|
&(PHY_vars_UE->lte_ue_common_vars.dl_ch_estimates[eNB_id][2][0]),
|
|
PHY_vars_UE->lte_frame_parms.ofdm_symbol_size*nsymb/2,1,1);
|
|
if ((PHY_vars_UE->lte_frame_parms.nb_antennas_rx>1) && (PHY_vars_eNB->lte_frame_parms.nb_antennas_tx>1))
|
|
write_output("dlsch11_ch0.m","dl11_ch0",
|
|
&(PHY_vars_UE->lte_ue_common_vars.dl_ch_estimates[eNB_id][3][0]),
|
|
PHY_vars_UE->lte_frame_parms.ofdm_symbol_size*nsymb/2,1,1);
|
|
|
|
//dlsch_vars
|
|
dump_dlsch2(PHY_vars_UE,eNB_id,coded_bits_per_codeword);
|
|
write_output("dlsch_e.m","e",PHY_vars_eNB->dlsch_eNB[0][0]->e,coded_bits_per_codeword,1,4);
|
|
write_output("dlsch_ber_bit.m","ber_bit",uncoded_ber_bit,coded_bits_per_codeword,1,0);
|
|
write_output("dlsch_eNB_w.m","w",PHY_vars_eNB->dlsch_eNB[0][0]->harq_processes[0]->w[0],3*(tbs+64),1,4);
|
|
write_output("dlsch_UE_w.m","w",PHY_vars_UE->dlsch_ue[0][0]->harq_processes[0]->w[0],3*(tbs+64),1,0);
|
|
|
|
|
|
exit(-1);
|
|
}
|
|
// printf("round %d errors %d/%d\n",round,errs[round],trials);
|
|
|
|
|
|
round_eNB++;
|
|
|
|
if (n_frames==1)
|
|
printf("DLSCH in error in round %d\n",round_eNB);
|
|
|
|
}
|
|
//********************** DL part end
|
|
|
|
//********************** DL Channel Feedback
|
|
|
|
//****************************** UL Decoding Proc
|
|
//modif start UL
|
|
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_UL)],OFDM_SYMBOL_SIZE_COMPLEX_SAMPLES/2))/((double)signal_energy((int*)&PHY_vars_eNB->lte_eNB_common_vars.rxdata[0][0][160+(PHY_vars_eNB->lte_frame_parms.samples_per_tti*(1+subframe_UL))],OFDM_SYMBOL_SIZE_COMPLEX_SAMPLES/2)) - 1);
|
|
|
|
if (n_frames==1) {
|
|
printf("SNRmeas %f\n",SNRmeas);
|
|
|
|
write_output("rxsig0_UE.m","rxs0_UE", &PHY_vars_eNB->lte_eNB_common_vars.rxdata[0][0][PHY_vars_eNB->lte_frame_parms.samples_per_tti*subframe_UL],PHY_vars_eNB->lte_frame_parms.samples_per_tti,1,1);
|
|
write_output("rxsig1_UE.m","rxs1_UE", &PHY_vars_eNB->lte_eNB_common_vars.rxdata[0][0][PHY_vars_eNB->lte_frame_parms.samples_per_tti*subframe_UL],PHY_vars_eNB->lte_frame_parms.samples_per_tti,1,1);
|
|
}
|
|
|
|
//write_output("rxsig0_UE.m","rxs0_UE", &PHY_vars_eNB->lte_eNB_common_vars.rxdata[0][0][PHY_vars_eNB->lte_frame_parms.samples_per_tti*subframe_UL],PHY_vars_eNB->lte_frame_parms.samples_per_tti,1,1);//b
|
|
|
|
#ifndef OFDMA_ULSCH
|
|
remove_7_5_kHz(PHY_vars_eNB,subframe_UL<<1);
|
|
remove_7_5_kHz(PHY_vars_eNB,1+(subframe_UL<<1));
|
|
#endif
|
|
for (l=subframe_UL*PHY_vars_UE->lte_frame_parms.symbols_per_tti;l<((1+subframe_UL)*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);
|
|
}
|
|
|
|
PHY_vars_eNB->ulsch_eNB[0]->cyclicShift = cyclic_shift;// cyclic shift for DMRS
|
|
rx_ulsch(PHY_vars_eNB,
|
|
subframe_UL,
|
|
0, // this is the effective sector id
|
|
0, // this is the UE_id
|
|
PHY_vars_eNB->ulsch_eNB,
|
|
cooperation_flag);
|
|
|
|
|
|
ret_UE= ulsch_decoding(PHY_vars_eNB,
|
|
0, // UE_id
|
|
subframe_UL,
|
|
control_only_flag,
|
|
1 // Nbundled
|
|
);
|
|
|
|
if (ret_UE <= MAX_TURBO_ITERATIONS) {
|
|
if (n_frames==1) {
|
|
printf("No ULSCH errors found, o_ACK[0]= %d\n",PHY_vars_eNB->ulsch_eNB[0]->o_ACK[0]);
|
|
dump_ulsch(PHY_vars_eNB);
|
|
// exit(-1);
|
|
}
|
|
round_UE=5;
|
|
|
|
}
|
|
else {
|
|
errs_UE[round_UE]++;
|
|
if (n_frames==1) {
|
|
printf("ULSCH errors found o_ACK[0]= %d\n",PHY_vars_eNB->ulsch_eNB[0]->o_ACK[0]);
|
|
dump_ulsch(PHY_vars_eNB);
|
|
exit(-1);
|
|
}
|
|
// printf("round %d errors %d/%d\n",round,errs[round],trials);
|
|
round_UE++;
|
|
|
|
if (n_frames==1) {
|
|
printf("ULSCH in error in round %d\n",round_UE);
|
|
}
|
|
} // ulsch error
|
|
|
|
//do_calibration(PHY_vars_eNB,subframe_UL);
|
|
//if (trials>0){
|
|
// for(aa=0;aa<12;aa++)
|
|
// printf("recu[%d]=%d \n",aa,(char)(PHY_vars_eNB->ulsch_eNB[0]->harq_processes[harq_pid]->b[aa]));
|
|
//exit(-1);
|
|
// }
|
|
|
|
if (trials<=n_K) {
|
|
|
|
do_quan(PHY_vars_eNB,
|
|
nsymb,
|
|
pilot1-1,
|
|
quant_v,
|
|
drs_ch_estimates,
|
|
UE_id);
|
|
|
|
|
|
}
|
|
|
|
if (trials <= n_K) {
|
|
|
|
for (aa=0; aa<1; aa++)
|
|
for (k=0; k<2*300; k++) {
|
|
K_dl_ch_estimates[trials][aa][k] = dl_ch_estimates[k+aa*2*300];
|
|
K_drs_ch_estimates[trials][aa][k] = drs_ch_estimates[k+aa*2*300];
|
|
//K_drs_ch_estimates[trials][aa][k]=((short *)PHY_vars_eNB->lte_eNB_ulsch_vars[0]->drs_ch_estimates[UE_id][aa])[k];
|
|
//K_dl_ch_estimates[trials][aa][k]=((short *)PHY_vars_UE->lte_ue_common_vars.dl_ch_estimates[0][aa])[k];
|
|
}
|
|
|
|
} else if ( (trials>n_K) && (P_eNb_active==0)) {
|
|
|
|
|
|
write_output("vdl0.m","vudl0", K_dl_ch_estimates[0][0],300,1,1);
|
|
write_output("vdrs0.m","vudrs0", K_drs_ch_estimates[0][0],300,1,1);
|
|
|
|
write_output("vdl1.m","vudl1", K_dl_ch_estimates[1][0],300,1,1);
|
|
write_output("vdrs1.m","vudrs1", K_drs_ch_estimates[1][0],300,1,1);
|
|
|
|
write_output("vdl2.m","vudl2", K_dl_ch_estimates[2][0],300,1,1);
|
|
write_output("vdrs2.m","vudrs2", K_drs_ch_estimates[2][0],300,1,1);
|
|
|
|
write_output("vdl3.m","vudl3", K_dl_ch_estimates[3][0],300,1,1);
|
|
write_output("vdrs3.m","vudrs3", K_drs_ch_estimates[3][0],300,1,1);
|
|
|
|
write_output("vdl4.m","vudl4", K_dl_ch_estimates[4][0],300,1,1);
|
|
write_output("vdrs4.m","vudrs4", K_drs_ch_estimates[4][0],300,1,1);
|
|
|
|
write_output("vdl5.m","vudl5", K_dl_ch_estimates[5][0],300,1,1);
|
|
write_output("vdrs5.m","vudrs5", K_drs_ch_estimates[5][0],300,1,1);
|
|
|
|
write_output("vdl6.m","vudl6", K_dl_ch_estimates[6][0],300,1,1);
|
|
write_output("vdrs6.m","vudrs6", K_drs_ch_estimates[6][0],300,1,1);
|
|
|
|
write_output("vdl7.m","vudl7", K_dl_ch_estimates[7][0],300,1,1);
|
|
write_output("vdrs7.m","vudrs7", K_drs_ch_estimates[7][0],300,1,1);
|
|
|
|
write_output("vdl8.m","vudl8", K_dl_ch_estimates[8][0],300,1,1);
|
|
write_output("vdrs8.m","vudrs8", K_drs_ch_estimates[8][0],300,1,1);
|
|
|
|
write_output("vdl9.m","vudl9", K_dl_ch_estimates[9][0],300,1,1);
|
|
write_output("vdrs9.m","vudrs9", K_drs_ch_estimates[9][0],300,1,1);
|
|
|
|
write_output("vdl10.m","vudl10", K_dl_ch_estimates[10][0],300,1,1);
|
|
write_output("vdrs10.m","vudrs10", K_drs_ch_estimates[10][0],300,1,1);
|
|
|
|
write_output("vdl11.m","vudl11", K_dl_ch_estimates[11][0],300,1,1);
|
|
write_output("vdrs11.m","vudrs11", K_drs_ch_estimates[11][0],300,1,1);
|
|
|
|
write_output("vdl12.m","vudl12", K_dl_ch_estimates[12][0],300,1,1);
|
|
write_output("vdrs12.m","vudrs12", K_drs_ch_estimates[12][0],300,1,1);
|
|
|
|
write_output("vdl13.m","vudl13", K_dl_ch_estimates[13][0],300,1,1);
|
|
write_output("vdrs13.m","vudrs13", K_drs_ch_estimates[13][0],300,1,1);
|
|
|
|
write_output("vdl14.m","vudl14", K_dl_ch_estimates[14][0],300,1,1);
|
|
write_output("vdrs14.m","vudrs14", K_drs_ch_estimates[14][0],300,1,1);
|
|
|
|
do_calibration (K_dl_ch_estimates,
|
|
K_drs_ch_estimates,
|
|
PeNb_factor,
|
|
PHY_vars_eNB->lte_frame_parms.ofdm_symbol_size,
|
|
n_K);
|
|
P_eNb_active=1;
|
|
|
|
write_output("cal1.m","cal", PeNb_factor[0],600,1,8);
|
|
|
|
|
|
|
|
write_output("aue1.m","aue", drs_ch_estimates,600,1,1);
|
|
write_output("aenb1.m","aenb", dl_ch_estimates,600,1,1);
|
|
write_output("vulb.m","vul", PHY_vars_eNB->lte_eNB_ulsch_vars[0]->drs_ch_estimates[UE_id][0],5000,1,1);
|
|
write_output("vdlb.m","vdl", PHY_vars_UE->lte_ue_common_vars.dl_ch_estimates[eNB_id][0], 5000,1,1);
|
|
|
|
//exit(-1);
|
|
|
|
}
|
|
if(trials>n_K+1){
|
|
//write_output("vdl15.m","vudl15", PHY_vars_UE->lte_ue_common_vars.dl_ch_estimates[eNB_id][0],300,1,1);
|
|
//write_output("vdrs15.m","vudrs15", PHY_vars_eNB->lte_eNB_ulsch_vars[0]->drs_ch_estimates[UE_id][0],300,1,1);
|
|
//exit(-1);
|
|
}
|
|
|
|
//modif end UL
|
|
|
|
} //round
|
|
|
|
//if ((errs_eNB[0]>=100) && (trials>(n_frames/2)) && (errs_UE[0]>=100) )
|
|
// break; //b
|
|
|
|
} //trials
|
|
printf("\n*******DL*************SNR = %f dB (tx_lev %f, sigma2_dB %f)************DL************\n",
|
|
SNR,
|
|
(double)tx_lev_dB+10*log10(PHY_vars_UE->lte_frame_parms.ofdm_symbol_size/(NB_RB*12)),
|
|
sigma2_dB);
|
|
|
|
printf("Errors (%d/%d %d/%d %d/%d %d/%d), Pe = (%e,%e,%e,%e), dci_errors %d/%d, Pe = %e => effective rate %f (%f), normalized delay %f (%f), uncoded_ber %f\n",
|
|
errs_eNB[0],
|
|
round_trials_eNB[0],
|
|
errs_eNB[1],
|
|
round_trials_eNB[1],
|
|
errs_eNB[2],
|
|
round_trials_eNB[2],
|
|
errs_eNB[3],
|
|
round_trials_eNB[3],
|
|
(double)errs_eNB[0]/(round_trials_eNB[0]),
|
|
(double)errs_eNB[1]/(round_trials_eNB[1]),
|
|
(double)errs_eNB[2]/(round_trials_eNB[2]),
|
|
(double)errs_eNB[3]/(round_trials_eNB[3]),
|
|
dci_errors,
|
|
round_trials_eNB[0],
|
|
(double)dci_errors/(round_trials_eNB[0]),
|
|
rate*((double)(round_trials_eNB[0]-dci_errors)/((double)round_trials_eNB[0] + round_trials_eNB[1] + round_trials_eNB[2] + round_trials_eNB[3])),
|
|
rate,
|
|
(1.0*(round_trials_eNB[0]-errs_eNB[0])+2.0*(round_trials_eNB[1]-errs_eNB[1])+3.0*(round_trials_eNB[2]-errs_eNB[2])+4.0*(round_trials_eNB[3]-errs_eNB[3]))/((double)round_trials_eNB[0])/(double)PHY_vars_eNB->dlsch_eNB[0][0]->harq_processes[0]->TBS,
|
|
(1.0*(round_trials_eNB[0]-errs_eNB[0])+2.0*(round_trials_eNB[1]-errs_eNB[1])+3.0*(round_trials_eNB[2]-errs_eNB[2])+4.0*(round_trials_eNB[3]-errs_eNB[3]))/((double)round_trials_eNB[0]),
|
|
avg_ber/round_trials_eNB[0]);
|
|
|
|
fprintf(bler_fd,"%f;%d;%d;%f;%d;%d;%d;%d;%d;%d;%d;%d;%d;%f\n",
|
|
SNR,
|
|
mcs_eNB,
|
|
PHY_vars_eNB->dlsch_eNB[0][0]->harq_processes[0]->TBS,
|
|
rate,
|
|
errs_eNB[0],
|
|
round_trials_eNB[0],
|
|
errs_eNB[1],
|
|
round_trials_eNB[1],
|
|
errs_eNB[2],
|
|
round_trials_eNB[2],
|
|
errs_eNB[3],
|
|
round_trials_eNB[3],
|
|
dci_errors,
|
|
avg_ber/round_trials_eNB[0]);
|
|
|
|
fprintf(tikz_fd,"(%f,%f)", SNR, (float)errs_eNB[0]/round_trials_eNB[0]);
|
|
|
|
if(abstx){ //ABSTRACTION
|
|
blerr= (double)errs_eNB[0]/(round_trials_eNB[0]);
|
|
fprintf(csv_fd,"%e;\n",blerr);
|
|
} //ABStraction
|
|
|
|
//modif start UL
|
|
printf("\n++++++UL+++++++++++++SNR = %f dB (tx_UE_lev %f, sigma2_UE_dB %f)++++++++++++UL+++++++++++\n",
|
|
SNR,
|
|
(double)tx_lev_UE_dB+10*log10(PHY_vars_UE->lte_frame_parms.ofdm_symbol_size/(nb_rb_UE*12)),
|
|
sigma2_UE_dB);
|
|
|
|
printf("Errors (%d/%d %d/%d %d/%d %d/%d), Pe = (%e,%e,%e,%e) => effective rate_UL %f (%f), normalized delay %f (%f)\n",
|
|
errs_UE[0],
|
|
round_trials_UE[0],
|
|
errs_UE[1],
|
|
round_trials_UE[1],
|
|
errs_UE[2],
|
|
round_trials_UE[2],
|
|
errs_UE[3],
|
|
round_trials_UE[3],
|
|
(double)errs_UE[0]/(round_trials_UE[0]),
|
|
(double)errs_UE[1]/(round_trials_UE[1]),
|
|
(double)errs_UE[2]/(round_trials_UE[2]),
|
|
(double)errs_UE[3]/(round_trials_UE[3]),
|
|
rate_UE*((double)(round_trials_UE[0])/((double)round_trials_UE[0] + round_trials_UE[1] + round_trials_UE[2] + round_trials_UE[3])),
|
|
rate_UE,
|
|
(1.0*(round_trials_UE[0]-errs_UE[0])+2.0*(round_trials_UE[1]-errs_UE[1])+3.0*(round_trials_UE[2]-errs_UE[2])+4.0*(round_trials_UE[3]-errs_UE[3]))/((double)round_trials_UE[0])/(double)PHY_vars_eNB->dlsch_eNB[0][0]->harq_processes[0]->TBS,
|
|
(1.0*(round_trials_UE[0]-errs_UE[0])+2.0*(round_trials_UE[1]-errs_UE[1])+3.0*(round_trials_UE[2]-errs_UE[2])+4.0*(round_trials_UE[3]-errs_UE[3]))/((double)round_trials_UE[0]));
|
|
|
|
fprintf(bler_fd,"%f;%d;%d;%f;%d;%d;%d;%d;%d;%d;%d;%d\n",
|
|
SNR,
|
|
mcs_UE,
|
|
PHY_vars_eNB->dlsch_eNB[0][0]->harq_processes[0]->TBS,
|
|
rate_UE,
|
|
errs_UE[0],
|
|
round_trials_UE[0],
|
|
errs_UE[1],
|
|
round_trials_UE[1],
|
|
errs_UE[2],
|
|
round_trials_UE[2],
|
|
errs_UE[3],
|
|
round_trials_UE[3]);
|
|
|
|
if (((double)errs_UE[0]/(round_trials_UE[0]))<1e-2 && ((double)errs_UE[0]/(round_trials_UE[0]))<1e-3)
|
|
break;
|
|
//modif end UL
|
|
|
|
}// SNR
|
|
|
|
} //ch_realization
|
|
|
|
|
|
fclose(bler_fd);
|
|
fprintf(tikz_fd,"};\n");
|
|
fclose(tikz_fd);
|
|
|
|
if (input_trch_file==1)
|
|
fclose(input_trch_fd);
|
|
if (input_file==1)
|
|
fclose(input_fd);
|
|
if(abstx){// ABSTRACTION
|
|
fprintf(csv_fd,"];");
|
|
fclose(csv_fd);
|
|
}
|
|
|
|
printf("Freeing dlsch structures\n");
|
|
for (i=0;i<2;i++) {
|
|
printf("eNB %d\n",i);
|
|
free_eNB_dlsch(PHY_vars_eNB->dlsch_eNB[0][i]);
|
|
printf("UE %d\n",i);
|
|
free_ue_dlsch(PHY_vars_UE->dlsch_ue[0][i]);
|
|
}
|
|
|
|
|
|
#ifdef IFFT_FPGA
|
|
printf("Freeing transmit signals\n");
|
|
free(txdataF2[0]);
|
|
free(txdataF2[1]);
|
|
free(txdataF2);
|
|
free(txdata[0]);
|
|
free(txdata[1]);
|
|
free(txdata);
|
|
//modif start UL
|
|
free(txdataF2_UE[0]);
|
|
free(txdataF2_UE[1]);
|
|
free(txdataF2_UE);
|
|
free(txdata_UE[0]);
|
|
free(txdata_UE[1]);
|
|
free(txdata_UE);
|
|
//modif end UL
|
|
#endif
|
|
|
|
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]);
|
|
//modif start UL
|
|
free(s_re_UE[i]);
|
|
free(s_im_UE[i]);
|
|
free(r_re_UE[i]);
|
|
free(r_im_UE[i]);
|
|
//modif end UL
|
|
}
|
|
free(s_re);
|
|
free(s_im);
|
|
free(r_re);
|
|
free(r_im);
|
|
|
|
//modif start UL
|
|
free(s_re_UE);
|
|
free(s_im_UE);
|
|
free(r_re_UE);
|
|
free(r_im_UE);
|
|
//modif end UL
|
|
// lte_sync_time_free();
|
|
|
|
return(0);
|
|
}
|
|
|