From f2839eaf8e545ac968d896a94286f9ae6b5dcf7b Mon Sep 17 00:00:00 2001 From: Florian Kaltenberger Date: Thu, 22 Nov 2018 21:26:06 +0100 Subject: [PATCH] some fixes in dlschsim + nr_dlsch_decoding --- .../PHY/NR_UE_TRANSPORT/nr_dlsch_decoding.c | 25 +- openair1/SIMULATION/NR_PHY/dlschsim.c | 651 +++++++++--------- 2 files changed, 329 insertions(+), 347 deletions(-) diff --git a/openair1/PHY/NR_UE_TRANSPORT/nr_dlsch_decoding.c b/openair1/PHY/NR_UE_TRANSPORT/nr_dlsch_decoding.c index 39031f20fd..d6adafc54b 100644 --- a/openair1/PHY/NR_UE_TRANSPORT/nr_dlsch_decoding.c +++ b/openair1/PHY/NR_UE_TRANSPORT/nr_dlsch_decoding.c @@ -292,7 +292,7 @@ uint32_t nr_dlsch_decoding(PHY_VARS_NR_UE *phy_vars_ue, harq_process->G = nr_get_G(nb_rb, nb_symb_sch, nb_re_dmrs, length_dmrs, harq_process->Qm,harq_process->Nl); G = harq_process->G; - printf("DLSCH Decoding, harq_pid %d TBS %d G %d mcs %d Nl %d nb_symb_sch %d \n",harq_pid,A,G, harq_process->mcs, harq_process->Nl, nb_symb_sch); + //printf("DLSCH Decoding, harq_pid %d TBS %d G %d mcs %d Nl %d nb_symb_sch %d \n",harq_pid,A,G, harq_process->mcs, harq_process->Nl, nb_symb_sch); if (harq_process->round == 0) { // This is a new packet, so compute quantities regarding segmentation @@ -325,7 +325,7 @@ uint32_t nr_dlsch_decoding(PHY_VARS_NR_UE *phy_vars_ue, kc = 52; } - p_decParams->numMaxIter = 2; + p_decParams->numMaxIter = dlsch->max_ldpc_iterations; Kr = p_decParams->Z*kb; p_decParams->outMode= 0; @@ -365,7 +365,7 @@ uint32_t nr_dlsch_decoding(PHY_VARS_NR_UE *phy_vars_ue, for (r=0; rC; r++) { - printf("start rx segment %d\n",r); + //printf("start rx segment %d\n",r); #if UE_TIMING_TRACE start_meas(dlsch_rate_unmatching_stats); @@ -519,13 +519,12 @@ uint32_t nr_dlsch_decoding(PHY_VARS_NR_UE *phy_vars_ue, */ nb_total_decod++; - if (no_iteration_ldpc > 10){ + if (no_iteration_ldpc > dlsch->max_ldpc_iterations){ nb_error_decod++; - ret = 1+dlsch->max_ldpc_iterations; - } - else { - ret=2; } + + ret=no_iteration_ldpc; + //if (!nb_total_decod%10000){ printf("Error number of iteration LPDC %d %ld/%ld \n", no_iteration_ldpc, nb_error_decod,nb_total_decod);fflush(stdout); //} @@ -538,13 +537,13 @@ uint32_t nr_dlsch_decoding(PHY_VARS_NR_UE *phy_vars_ue, harq_process->c[r][m]= (uint8_t) llrProcBuf[m]; } -//#ifdef DEBUG_DLSCH_DECODING +#ifdef DEBUG_DLSCH_DECODING //printf("output decoder %d %d %d %d %d \n", harq_process->c[r][0], harq_process->c[r][1], harq_process->c[r][2],harq_process->c[r][3], harq_process->c[r][4]); for (int k=0;k<32;k++) printf("output decoder [%d] = 0x%02x \n", k, harq_process->c[r][k]); printf("no_iterations_ldpc %d (ret %d)\n",no_iteration_ldpc,ret); //write_output("dec_output.m","dec0",harq_process->c[0],Kr_bytes,1,4); -//#endif +#endif #if UE_TIMING_TRACE @@ -1233,10 +1232,10 @@ if (harq_process->C>1) { // wakeup worker if more than 1 segment llrProcBuf, p_procTime); - if (no_iteration_ldpc > 2) - printf("Error number of iteration LPDC %d\n", no_iteration_ldpc); + //if (no_iteration_ldpc > 2) + //printf("Error number of iteration LPDC %d\n", no_iteration_ldpc); //else - //printf("OK number of iteration LPDC %d\n", no_iteration_ldpc); + //printf("OK number of iteration LPDC %d\n", no_iteration_ldpc); for (int m=0; m < Kr>>3; m ++) { diff --git a/openair1/SIMULATION/NR_PHY/dlschsim.c b/openair1/SIMULATION/NR_PHY/dlschsim.c index e98d0c6ea3..8acbf5dc36 100644 --- a/openair1/SIMULATION/NR_PHY/dlschsim.c +++ b/openair1/SIMULATION/NR_PHY/dlschsim.c @@ -28,7 +28,7 @@ #include "common/config/config_userapi.h" #include "common/utils/LOG/log.h" -#include "common/ran_context.h" +#include "common/ran_context.h" #include "SIMULATION/TOOLS/sim.h" #include "SIMULATION/RF/rf.h" @@ -50,7 +50,7 @@ //#include "PHY/MODULATION/modulation_common.h" //#include "common/config/config_load_configmodule.h" //#include "UTIL/LISTS/list.h" -//#include "common/ran_context.h" +//#include "common/ran_context.h" PHY_VARS_gNB *gNB; PHY_VARS_NR_UE *UE; @@ -61,36 +61,50 @@ double cpuf; // dummy functions int nfapi_mode=0; -int oai_nfapi_hi_dci0_req(nfapi_hi_dci0_request_t *hi_dci0_req) { return(0);} -int oai_nfapi_tx_req(nfapi_tx_request_t *tx_req) { return(0); } +int oai_nfapi_hi_dci0_req(nfapi_hi_dci0_request_t *hi_dci0_req) { + return(0); +} +int oai_nfapi_tx_req(nfapi_tx_request_t *tx_req) { + return(0); +} -int oai_nfapi_dl_config_req(nfapi_dl_config_request_t *dl_config_req) { return(0); } +int oai_nfapi_dl_config_req(nfapi_dl_config_request_t *dl_config_req) { + return(0); +} -int oai_nfapi_ul_config_req(nfapi_ul_config_request_t *ul_config_req) { return(0); } +int oai_nfapi_ul_config_req(nfapi_ul_config_request_t *ul_config_req) { + return(0); +} -int oai_nfapi_nr_dl_config_req(nfapi_nr_dl_config_request_t *dl_config_req) {return(0);} +int oai_nfapi_nr_dl_config_req(nfapi_nr_dl_config_request_t *dl_config_req) { + return(0); +} -uint32_t from_earfcn(int eutra_bandP,uint32_t dl_earfcn) {return(0);} -int32_t get_uldl_offset(int eutra_bandP) {return(0);} +uint32_t from_earfcn(int eutra_bandP,uint32_t dl_earfcn) { + return(0); +} +int32_t get_uldl_offset(int eutra_bandP) { + return(0); +} -NR_IF_Module_t *NR_IF_Module_init(int Mod_id){return(NULL);} +NR_IF_Module_t *NR_IF_Module_init(int Mod_id) { + return(NULL); +} -void exit_function(const char* file, const char* function, const int line,const char *s) { - const char * msg= s==NULL ? "no comment": s; - printf("Exiting at: %s:%d %s(), %s\n", file, line, function, msg); - exit(-1); +void exit_function(const char *file, const char *function, const int line,const char *s) { + const char *msg= s==NULL ? "no comment": s; + printf("Exiting at: %s:%d %s(), %s\n", file, line, function, msg); + exit(-1); } // needed for some functions -PHY_VARS_NR_UE * PHY_vars_UE_g[1][1]={{NULL}}; +PHY_VARS_NR_UE *PHY_vars_UE_g[1][1]= {{NULL}}; uint16_t n_rnti=0x1234; -char quantize(double D,double x,unsigned char B) -{ +char quantize(double D,double x,unsigned char B) { double qxd; short maxlev; qxd = floor(x/D); - maxlev = 1<<(B-1);//(char)(pow(2,B-1)); //printf("x=%f,qxd=%f,maxlev=%d\n",x,qxd, maxlev); @@ -103,11 +117,8 @@ char quantize(double D,double x,unsigned char B) return((char)qxd); } -int main(int argc, char **argv) -{ - +int main(int argc, char **argv) { char c; - int i; //,j,l,aa; double SNR,SNR_lin,snr0=-2.0,snr1=2.0; double snr_step = 0.1; @@ -120,42 +131,37 @@ int main(int argc, char **argv) uint8_t write_output_file=0; // int subframe_offset; // char fname[40], vname[40]; - int trial,n_trials=1,n_errors; + int trial,n_trials=1,n_errors=0,n_false_positive=0; uint8_t transmission_mode = 1,n_tx=1,n_rx=1; uint16_t Nid_cell=0; - channel_desc_t *gNB2UE; uint8_t extended_prefix_flag=0; int8_t interf1=-21,interf2=-21; - FILE *input_fd=NULL,*pbch_file_fd=NULL; char input_val_str[50],input_val_str2[50]; //uint16_t NB_RB=25; - SCM_t channel_model=AWGN;//Rayleigh1_anticorr; uint8_t N_RB_DL=106,mu=1; - unsigned char frame_type = 0; unsigned char pbch_phase = 0; - int frame=0,subframe=0; int frame_length_complex_samples; //int frame_length_complex_samples_no_prefix; NR_DL_FRAME_PARMS *frame_parms; //nfapi_nr_config_request_t *gNB_config; - uint8_t Kmimo; uint32_t Nsoft; double sigma; unsigned char qbits=8; - int ret; int run_initial_sync=0; - int loglvl=OAILOG_WARNING; - float target_error_rate = 0.01; - + + uint16_t nb_symb_sch =12; + uint16_t nb_rb = 50; + uint8_t Imcs=9; + cpuf = get_cpu_freq_GHz(); if ( load_configmodule(argc,argv) == 0) { @@ -165,91 +171,86 @@ int main(int argc, char **argv) //logInit(); randominit(0); - while ((c = getopt (argc, argv, "f:hA:pf:g:i:j:n:s:S:t:x:y:z:N:F:GR:dP:")) != -1) { + while ((c = getopt (argc, argv, "df:hpg:i:j:n:l:m:r:s:S:y:z:N:F:R:P:")) != -1) { switch (c) { - case 'f': - write_output_file=1; - output_fd = fopen(optarg,"w"); + case 'f': + write_output_file=1; + output_fd = fopen(optarg,"w"); - if (output_fd==NULL) { - printf("Error opening %s\n",optarg); - exit(-1); - } + if (output_fd==NULL) { + printf("Error opening %s\n",optarg); + exit(-1); + } - break; - - case 'd': - frame_type = 1; - break; - - case 'g': - switch((char)*optarg) { - case 'A': - channel_model=SCM_A; break; - case 'B': - channel_model=SCM_B; + case 'd': + frame_type = 1; break; - case 'C': - channel_model=SCM_C; + 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; + + default: + msg("Unsupported channel model!\n"); + exit(-1); + } + break; - case 'D': - channel_model=SCM_D; + case 'i': + interf1=atoi(optarg); break; - case 'E': - channel_model=EPA; + case 'j': + interf2=atoi(optarg); break; - case 'F': - channel_model=EVA; + case 'n': + n_trials = atoi(optarg); break; - case 'G': - channel_model=ETU; + case 's': + snr0 = atof(optarg); + msg("Setting SNR0 to %f\n",snr0); break; - default: - msg("Unsupported channel model!\n"); - exit(-1); - } + case 'S': + snr1 = atof(optarg); + snr1set=1; + msg("Setting SNR1 to %f\n",snr1); + break; - break; - - case 'i': - interf1=atoi(optarg); - break; - - case 'j': - interf2=atoi(optarg); - break; - - case 'n': - n_trials = atoi(optarg); - break; - - case 's': - snr0 = atof(optarg); - msg("Setting SNR0 to %f\n",snr0); - break; - - case 'S': - snr1 = atof(optarg); - snr1set=1; - msg("Setting SNR1 to %f\n",snr1); - break; - - /* - case 't': - Td= atof(optarg); - break; - */ - case 'p': - extended_prefix_flag=1; - break; + case 'p': + extended_prefix_flag=1; + break; /* case 'r': @@ -260,90 +261,91 @@ int main(int argc, char **argv) } break; */ - case 'x': - transmission_mode=atoi(optarg); + + case 'y': + n_tx=atoi(optarg); - if ((transmission_mode!=1) && - (transmission_mode!=2) && - (transmission_mode!=6)) { - msg("Unsupported transmission mode %d\n",transmission_mode); - exit(-1); - } + 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 'N': + Nid_cell = atoi(optarg); + break; + + case 'R': + N_RB_DL = atoi(optarg); + break; + + case 'F': + input_fd = fopen(optarg,"r"); + + if (input_fd==NULL) { + printf("Problem with filename %s\n",optarg); + exit(-1); + } + + break; + + case 'P': + pbch_phase = atoi(optarg); + + if (pbch_phase>3) + printf("Illegal PBCH phase (0-3) got %d\n",pbch_phase); + + break; + + case 'm': + Imcs = atoi(optarg); 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); - } - + case 'l': + nb_symb_sch = atoi(optarg); 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 'N': - Nid_cell = atoi(optarg); - break; - - case 'R': - N_RB_DL = atoi(optarg); - break; - - case 'F': - input_fd = fopen(optarg,"r"); - - if (input_fd==NULL) { - printf("Problem with filename %s\n",optarg); - exit(-1); - } - - break; - - case 'P': - pbch_phase = atoi(optarg); - - if (pbch_phase>3) - printf("Illegal PBCH phase (0-3) got %d\n",pbch_phase); - - break; - - default: - case 'h': - printf("%s -h(elp) -p(extended_prefix) -N cell_id -f output_filename -F input_filename -g channel_model -n n_frames -t Delayspread -s snr0 -S snr1 -x transmission_mode -y TXant -z RXant -i Intefrence0 -j Interference1 -A interpolation_file -C(alibration offset dB) -N CellId\n", - argv[0]); - printf("-h This message\n"); - printf("-p Use extended prefix mode\n"); - printf("-d Use TDD\n"); - printf("-n Number of frames to simulate\n"); - printf("-s Starting SNR, runs from SNR0 to SNR0 + 5 dB. If n_frames is 1 then just SNR is simulated\n"); - printf("-S Ending SNR, runs from SNR0 to SNR1\n"); - printf("-t Delay spread for multipath channel\n"); - printf("-g [A,B,C,D,E,F,G] Use 3GPP SCM (A,B,C,D) or 36-101 (E-EPA,F-EVA,G-ETU) models (ignores delay spread and Ricean factor)\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("-i Relative strength of first intefering eNB (in dB) - cell_id mod 3 = 1\n"); - printf("-j Relative strength of second intefering eNB (in dB) - cell_id mod 3 = 2\n"); - printf("-N Nid_cell\n"); - printf("-R N_RB_DL\n"); - printf("-O oversampling factor (1,2,4,8,16)\n"); - printf("-A Interpolation_filname Run with Abstraction to generate Scatter plot using interpolation polynomial in file\n"); - // printf("-C Generate Calibration information for Abstraction (effective SNR adjustment to remove Pe bias w.r.t. AWGN)\n"); - printf("-f Output filename (.txt format) for Pe/SNR results\n"); - printf("-F Input filename (.txt format) for RX conformance testing\n"); - exit (-1); + + case 'r': + nb_rb = atoi(optarg); break; + + default: + case 'h': + printf("%s -h(elp) -p(extended_prefix) -N cell_id -f output_filename -F input_filename -g channel_model -n n_frames -t Delayspread -s snr0 -S snr1 -x transmission_mode -y TXant -z RXant -i Intefrence0 -j Interference1 -A interpolation_file -C(alibration offset dB) -N CellId\n", + argv[0]); + printf("-h This message\n"); + printf("-p Use extended prefix mode\n"); + printf("-d Use TDD\n"); + printf("-n Number of frames to simulate\n"); + printf("-s Starting SNR, runs from SNR0 to SNR0 + 5 dB. If n_frames is 1 then just SNR is simulated\n"); + printf("-S Ending SNR, runs from SNR0 to SNR1\n"); + printf("-t Delay spread for multipath channel\n"); + printf("-g [A,B,C,D,E,F,G] Use 3GPP SCM (A,B,C,D) or 36-101 (E-EPA,F-EVA,G-ETU) models (ignores delay spread and Ricean factor)\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("-i Relative strength of first intefering eNB (in dB) - cell_id mod 3 = 1\n"); + printf("-j Relative strength of second intefering eNB (in dB) - cell_id mod 3 = 2\n"); + printf("-N Nid_cell\n"); + printf("-R N_RB_DL\n"); + printf("-O oversampling factor (1,2,4,8,16)\n"); + printf("-A Interpolation_filname Run with Abstraction to generate Scatter plot using interpolation polynomial in file\n"); + // printf("-C Generate Calibration information for Abstraction (effective SNR adjustment to remove Pe bias w.r.t. AWGN)\n"); + printf("-f Output filename (.txt format) for Pe/SNR results\n"); + printf("-F Input filename (.txt format) for RX conformance testing\n"); + exit (-1); + break; } } @@ -357,8 +359,8 @@ int main(int argc, char **argv) gNB2UE = new_channel_desc_scm(n_tx, n_rx, channel_model, - 61.44e6, //N_RB2sampling_rate(N_RB_DL), - 40e6, //N_RB2channel_bandwidth(N_RB_DL), + 61.44e6, //N_RB2sampling_rate(N_RB_DL), + 40e6, //N_RB2channel_bandwidth(N_RB_DL), 0, 0, 0); @@ -368,8 +370,8 @@ int main(int argc, char **argv) exit(-1); } - RC.gNB = (PHY_VARS_gNB***) malloc(sizeof(PHY_VARS_gNB **)); - RC.gNB[0] = (PHY_VARS_gNB**) malloc(sizeof(PHY_VARS_gNB *)); + RC.gNB = (PHY_VARS_gNB ** *) malloc(sizeof(PHY_VARS_gNB **)); + RC.gNB[0] = (PHY_VARS_gNB **) malloc(sizeof(PHY_VARS_gNB *)); RC.gNB[0][0] = malloc(sizeof(PHY_VARS_gNB)); gNB = RC.gNB[0][0]; //gNB_config = &gNB->gNB_config; @@ -377,126 +379,106 @@ int main(int argc, char **argv) frame_parms->nb_antennas_tx = n_tx; frame_parms->nb_antennas_rx = n_rx; frame_parms->N_RB_DL = N_RB_DL; - crcTableInit(); nr_phy_config_request_sim(gNB,N_RB_DL,N_RB_DL,mu); phy_init_nr_gNB(gNB,0,0); //init_eNB_afterRU(); - frame_length_complex_samples = frame_parms->samples_per_subframe; //frame_length_complex_samples_no_prefix = frame_parms->samples_per_subframe_wCP; - - s_re = malloc(2*sizeof(double*)); - s_im = malloc(2*sizeof(double*)); - r_re = malloc(2*sizeof(double*)); - r_im = malloc(2*sizeof(double*)); - txdata = malloc(2*sizeof(int*)); + s_re = malloc(2*sizeof(double *)); + s_im = malloc(2*sizeof(double *)); + r_re = malloc(2*sizeof(double *)); + r_im = malloc(2*sizeof(double *)); + txdata = malloc(2*sizeof(int *)); for (i=0; i<2; i++) { - s_re[i] = malloc(frame_length_complex_samples*sizeof(double)); bzero(s_re[i],frame_length_complex_samples*sizeof(double)); s_im[i] = malloc(frame_length_complex_samples*sizeof(double)); bzero(s_im[i],frame_length_complex_samples*sizeof(double)); - r_re[i] = malloc(frame_length_complex_samples*sizeof(double)); bzero(r_re[i],frame_length_complex_samples*sizeof(double)); r_im[i] = malloc(frame_length_complex_samples*sizeof(double)); bzero(r_im[i],frame_length_complex_samples*sizeof(double)); - txdata[i] = malloc(frame_length_complex_samples*sizeof(int)); bzero(r_re[i],frame_length_complex_samples*sizeof(int)); - } if (pbch_file_fd!=NULL) { load_pbch_desc(pbch_file_fd); } -/* for (int k=0; k<2; k++) { - // Create transport channel structures for 2 transport blocks (MIMO) - for (i=0; i<2; i++) { - gNB->dlsch[k][i] = new_gNB_dlsch(Kmimo,8,Nsoft,0,frame_parms,gNB_config); + /* for (int k=0; k<2; k++) { + // Create transport channel structures for 2 transport blocks (MIMO) + for (i=0; i<2; i++) { + gNB->dlsch[k][i] = new_gNB_dlsch(Kmimo,8,Nsoft,0,frame_parms,gNB_config); - if (!gNB->dlsch[k][i]) { - printf("Can't get eNB dlsch structures\n"); - exit(-1); + if (!gNB->dlsch[k][i]) { + printf("Can't get eNB dlsch structures\n"); + exit(-1); + } + gNB->dlsch[k][i]->Nsoft = 10; + gNB->dlsch[k][i]->rnti = n_rnti+k; } -gNB->dlsch[k][i]->Nsoft = 10; - gNB->dlsch[k][i]->rnti = n_rnti+k; - } - }*/ - - + }*/ //configure UE UE = malloc(sizeof(PHY_VARS_NR_UE)); memcpy(&UE->frame_parms,frame_parms,sizeof(NR_DL_FRAME_PARMS)); + //phy_init_nr_top(frame_parms); - if (init_nr_ue_signal(UE, 1, 0) != 0) - { + if (init_nr_ue_signal(UE, 1, 0) != 0) { printf("Error at UE NR initialisation\n"); exit(-1); } + //nr_init_frame_parms_ue(&UE->frame_parms); //init_nr_ue_transport(UE, 0); for (int sf = 0; sf < 2; sf++) { - for (i=0; i<2; i++) { - UE->dlsch[sf][0][i] = new_nr_ue_dlsch(Kmimo,8,Nsoft,5,N_RB_DL,0); + for (i=0; i<2; i++) { + UE->dlsch[sf][0][i] = new_nr_ue_dlsch(Kmimo,8,Nsoft,5,N_RB_DL,0); - if (!UE->dlsch[sf][0][i]) { - printf("Can't get ue dlsch structures\n"); - exit(-1); - } - - UE->dlsch[sf][0][i]->rnti = n_rnti; - } + if (!UE->dlsch[sf][0][i]) { + printf("Can't get ue dlsch structures\n"); + exit(-1); } - UE->dlsch_SI[0] = new_nr_ue_dlsch(1,1,Nsoft,5,N_RB_DL,0); - UE->dlsch_ra[0] = new_nr_ue_dlsch(1,1,Nsoft,5,N_RB_DL,0); + UE->dlsch[sf][0][i]->rnti = n_rnti; + } + } + UE->dlsch_SI[0] = new_nr_ue_dlsch(1,1,Nsoft,5,N_RB_DL,0); + UE->dlsch_ra[0] = new_nr_ue_dlsch(1,1,Nsoft,5,N_RB_DL,0); unsigned char harq_pid = 0; //dlsch->harq_ids[subframe]; NR_gNB_DLSCH_t *dlsch = gNB->dlsch[0][0]; - nfapi_nr_dl_config_dlsch_pdu_rel15_t rel15 = dlsch->harq_processes[harq_pid]->dlsch_pdu.dlsch_pdu_rel15; - // dlsch->harq_processes[0]->b = (unsigned char*)malloc16(800); - // dlsch->harq_processes[i]->pdu = (uint8_t*)malloc16(MAX_NR_DLSCH_PAYLOAD_BYTES/bw_scaling); + nfapi_nr_dl_config_dlsch_pdu_rel15_t *rel15 = &dlsch->harq_processes[harq_pid]->dlsch_pdu.dlsch_pdu_rel15; time_stats_t *rm_stats; time_stats_t *te_stats; time_stats_t *i_stats; uint8_t is_crnti; uint8_t llr8_flag; - unsigned int TBS = 8424; unsigned int available_bits; - uint16_t nb_symb_sch =8; uint8_t nb_re_dmrs = 6; uint16_t length_dmrs = 1; unsigned char mod_order; - uint16_t nb_rb = 50; - uint8_t Imcs=9; uint8_t Nl=1; uint8_t rvidx = 0; - dlsch->rnti =1; - - /*dlsch->harq_processes[0]->mcs = Imcs; dlsch->harq_processes[0]->rvidx = rvidx;*/ - //printf("dlschsim harqid %d nb_rb %d, mscs %d\n",dlsch->harq_ids[subframe], - // dlsch->harq_processes[0]->nb_rb,dlsch->harq_processes[0]->mcs,dlsch->harq_processes[0]->Nl); - + // dlsch->harq_processes[0]->nb_rb,dlsch->harq_processes[0]->mcs,dlsch->harq_processes[0]->Nl); mod_order = nr_get_Qm(Imcs,1); available_bits = nr_get_G(nb_rb, nb_symb_sch, nb_re_dmrs, length_dmrs,mod_order,1); TBS= nr_compute_tbs(Imcs,nb_rb,nb_symb_sch,nb_re_dmrs,length_dmrs,Nl); printf("available bits %d TBS %d mod_order %d\n",available_bits, TBS, mod_order); //dlsch->harq_ids[subframe]= 0; - rel15.n_prb = nb_rb; - rel15.nb_symbols = nb_symb_sch; - rel15.modulation_order = mod_order; - rel15.nb_layers = Nl; - rel15.nb_re_dmrs = nb_re_dmrs; - + rel15->n_prb = nb_rb; + rel15->nb_symbols = nb_symb_sch; + rel15->modulation_order = mod_order; + rel15->nb_layers = Nl; + rel15->nb_re_dmrs = nb_re_dmrs; + rel15->transport_block_size = TBS; double *modulated_input = malloc16(sizeof(double) * 16*68*384); short *channel_output_fixed = malloc16(sizeof( short) *16* 68*384); short *channel_output_uncoded = malloc16(sizeof(unsigned short) *16* 68*384); @@ -505,11 +487,9 @@ gNB->dlsch[k][i]->Nsoft = 10; unsigned char *estimated_output_bit; unsigned char *test_input_bit; unsigned int errors_bit =0; - - test_input_bit = (unsigned char*) malloc16(sizeof(unsigned char) * 16*68*384); - estimated_output = (unsigned char*) malloc16(sizeof(unsigned char) * 16*68*384); - estimated_output_bit = (unsigned char*) malloc16(sizeof(unsigned char) * 16*68*384); - + test_input_bit = (unsigned char *) malloc16(sizeof(unsigned char) * 16*68*384); + estimated_output = (unsigned char *) malloc16(sizeof(unsigned char) * 16*68*384); + estimated_output_bit = (unsigned char *) malloc16(sizeof(unsigned char) * 16*68*384); NR_UE_DLSCH_t *dlsch0_ue = UE->dlsch[UE->current_thread_id[subframe]][0][0]; NR_DL_UE_HARQ_t *harq_process = dlsch0_ue->harq_processes[harq_pid]; harq_process->mcs = Imcs; @@ -518,112 +498,117 @@ gNB->dlsch[k][i]->Nsoft = 10; harq_process->Qm = mod_order; harq_process->rvidx = rvidx; printf("harq process ue mcs = %d Qm = %d\n", harq_process->mcs, harq_process->Qm); - unsigned char *test_input; test_input=(unsigned char *)malloc16(sizeof(unsigned char) * TBS/8); - for (i=0; ib; /*for (int i=0; i0x%08x\n",crc24c(test_input, 32)); // generate signal if (input_fd==NULL) { nr_dlsch_encoding(test_input, - subframe, + subframe, dlsch, frame_parms); - - } - for (SNR=snr0;SNRharq_processes[0]->f[i]); - if (dlsch->harq_processes[0]->f[i]==0) - modulated_input[i]=1.0;///sqrt(2); //QPSK - else - modulated_input[i]=-1.0;///sqrt(2); +#endif - //if (i<16) printf("modulated_input[%d] = %d\n",i,modulated_input[i]); + //if (i<16) + // printf("encoder output f[%d] = %d\n",i,dlsch->harq_processes[0]->f[i]); + if (dlsch->harq_processes[0]->f[i]==0) + modulated_input[i]=1.0;///sqrt(2); //QPSK + else + modulated_input[i]=-1.0;///sqrt(2); - //SNR =10; - SNR_lin = pow(10,SNR/10.0); - sigma = 1.0/sqrt(2*SNR_lin); - channel_output_fixed[i] = (short)quantize(sigma/4.0/4.0,modulated_input[i] + sigma*gaussdouble(0.0,1.0),qbits); - //channel_output_fixed[i] = (char)quantize8bit(sigma/4.0,(2.0*modulated_input[i]) - 1.0 + sigma*gaussdouble(0.0,1.0)); - //printf("llr[%d]=%d\n",i,channel_output_fixed[i]); - //printf("channel_output_fixed[%d]: %d\n",i,channel_output_fixed[i]); + //if (i<16) printf("modulated_input[%d] = %d\n",i,modulated_input[i]); + //SNR =10; + SNR_lin = pow(10,SNR/10.0); + sigma = 1.0/sqrt(2*SNR_lin); + channel_output_fixed[i] = (short)quantize(sigma/4.0/4.0,modulated_input[i] + sigma*gaussdouble(0.0,1.0),qbits); + //channel_output_fixed[i] = (char)quantize8bit(sigma/4.0,(2.0*modulated_input[i]) - 1.0 + sigma*gaussdouble(0.0,1.0)); + //printf("llr[%d]=%d\n",i,channel_output_fixed[i]); + //printf("channel_output_fixed[%d]: %d\n",i,channel_output_fixed[i]); + //channel_output_fixed[i] = (char)quantize(1,channel_output_fixed[i],qbits); - //channel_output_fixed[i] = (char)quantize(1,channel_output_fixed[i],qbits); + //if (i<16) printf("channel_output_fixed[%d] = %d\n",i,channel_output_fixed[i]); - //if (i<16) printf("channel_output_fixed[%d] = %d\n",i,channel_output_fixed[i]); + //Uncoded BER + if (channel_output_fixed[i]<0) + channel_output_uncoded[i]=1; //QPSK demod + else + channel_output_uncoded[i]=0; - //Uncoded BER - if (channel_output_fixed[i]<0) - channel_output_uncoded[i]=1; //QPSK demod - else - channel_output_uncoded[i]=0; + if (channel_output_uncoded[i] != dlsch->harq_processes[harq_pid]->f[i]) + errors_bit_uncoded = errors_bit_uncoded + 1; + } - if (channel_output_uncoded[i] != dlsch->harq_processes[harq_pid]->f[i]) - errors_bit_uncoded = errors_bit_uncoded + 1; + //if (errors_bit_uncoded>10) + printf("errors bits uncoded %f\n", errors_bit_uncoded); +#ifdef DEBUG_CODER + printf("\n"); + exit(-1); +#endif + ret = nr_dlsch_decoding(UE, + channel_output_fixed, + &UE->frame_parms, + dlsch0_ue, + dlsch0_ue->harq_processes[0], + frame, + nb_symb_sch, + subframe, + harq_pid, + is_crnti, + llr8_flag); - } + if (ret>dlsch0_ue->max_ldpc_iterations) + n_errors++; - //if (errors_bit_uncoded>10) - printf("errors bits uncoded %f\n", errors_bit_uncoded); + //count errors + errors_bit = 0; + for (i=0; i>(i&7); + test_input_bit[i] = (test_input[i/8]&(1<<(i&7)))>>(i&7); // Further correct for multiple segments - #ifdef DEBUG_CODER - printf("\n"); - exit(-1); - #endif + if (estimated_output_bit[i] != test_input_bit[i]) { + errors_bit++; + //printf("estimated bits error occurs @%d ",i); + } + } - nr_dlsch_decoding(UE, - channel_output_fixed, - &UE->frame_parms, - dlsch0_ue, - dlsch0_ue->harq_processes[0], - frame, - nb_symb_sch, - subframe, - harq_pid, - is_crnti, - llr8_flag); - - - //count errors - for (i=0; i>(i&7); - test_input_bit[i] = (test_input[i/8]&(1<<(i&7)))>>(i&7); // Further correct for multiple segments - if (estimated_output_bit[i] != test_input_bit[i]) - { - errors_bit = (errors_bit) + 1; - //printf("estimated bits error occurs @%d ",i); - } - } -//if (errors_bit>10) - printf("\n errors_bit %d (trial %d)\n", errors_bit,trial); - } - - printf("SNR %f, BER %f \n",SNR,(float)errors_bit/(float)n_trials/(float)TBS); + if (errors_bit>0) { + n_false_positive++; + if (n_trials == 1) + printf("\n errors_bit %d (trial %d)\n", errors_bit,trial); + } } + + printf("SNR %f, BLER %f (false positive %f)\n",SNR,(float)n_errors/(float)n_trials,(float)n_false_positive/(float)n_trials); + + if ((float)n_errors/(float)n_trials < target_error_rate) + break; + } + /*LOG_M("txsigF0.m","txsF0", gNB->common_vars.txdataF[0],frame_length_complex_samples_no_prefix,1,1); if (gNB->frame_parms.nb_antennas_tx>1) LOG_M("txsigF1.m","txsF1", gNB->common_vars.txdataF[1],frame_length_complex_samples_no_prefix,1,1);*/ @@ -632,16 +617,16 @@ gNB->dlsch[k][i]->Nsoft = 10; /*for (aa=0; aaframe_parms.nb_antennas_tx; aa++) { if (gNB_config->subframe_config.dl_cyclic_prefix_type.value == 1) { PHY_ofdm_mod(gNB->common_vars.txdataF[aa], - txdata[aa], - frame_parms->ofdm_symbol_size, - 12, - frame_parms->nb_prefix_samples, - CYCLIC_PREFIX); + txdata[aa], + frame_parms->ofdm_symbol_size, + 12, + frame_parms->nb_prefix_samples, + CYCLIC_PREFIX); } else { nr_normal_prefix_mod(gNB->common_vars.txdataF[aa], - txdata[aa], - 14, - frame_parms); + txdata[aa], + 14, + frame_parms); } } @@ -656,14 +641,13 @@ gNB->dlsch[k][i]->Nsoft = 10; r_im[aa][i] = ((double)(((short *)txdata[aa]))[(i<<1)+1]); } }*/ - for (i=0; i<2; i++) { - printf("gNB %d\n",i); - free_gNB_dlsch(gNB->dlsch[0][i]); - printf("UE %d\n",i); - free_nr_ue_dlsch(UE->dlsch[UE->current_thread_id[subframe]][0][i]); - } + printf("gNB %d\n",i); + free_gNB_dlsch(gNB->dlsch[0][i]); + printf("UE %d\n",i); + free_nr_ue_dlsch(UE->dlsch[UE->current_thread_id[subframe]][0][i]); + } for (i=0; i<2; i++) { free(s_re[i]); @@ -686,7 +670,6 @@ gNB->dlsch[k][i]->Nsoft = 10; fclose(input_fd); return(n_errors); - }