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add more detailed statistics to nr_dlsim output

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This commit is contained in:
Thomas Schlichter
2022-04-07 11:45:26 +02:00
parent 7f074bcc22
commit dd374c7e03
5 changed files with 104 additions and 62 deletions
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executables/softmodem-common.h
+2
View File
@@ -204,6 +204,7 @@ extern int usrp_tx_thread;
#define SOFTMODEM_NONBIOT_BIT (1<<2)
#define SOFTMODEM_RFSIM_BIT (1<<10)
#define SOFTMODEM_SIML1_BIT (1<<12)
#define SOFTMODEM_DLSIM_BIT (1<<13)
#define SOFTMODEM_DOSCOPE_BIT (1<<15)
#define SOFTMODEM_RECPLAY_BIT (1<<16)
#define SOFTMODEM_TELNETCLT_BIT (1<<17)
@@ -220,6 +221,7 @@ extern int usrp_tx_thread;
#define IS_SOFTMODEM_NONBIOT ( get_softmodem_optmask() & SOFTMODEM_NONBIOT_BIT)
#define IS_SOFTMODEM_RFSIM ( get_softmodem_optmask() & SOFTMODEM_RFSIM_BIT)
#define IS_SOFTMODEM_SIML1 ( get_softmodem_optmask() & SOFTMODEM_SIML1_BIT)
#define IS_SOFTMODEM_DLSIM ( get_softmodem_optmask() & SOFTMODEM_DLSIM_BIT)
#define IS_SOFTMODEM_DOSCOPE ( get_softmodem_optmask() & SOFTMODEM_DOSCOPE_BIT)
#define IS_SOFTMODEM_IQPLAYER ( get_softmodem_optmask() & SOFTMODEM_RECPLAY_BIT)
#define IS_SOFTMODEM_TELNETCLT_BIT ( get_softmodem_optmask() & SOFTMODEM_TELNETCLT_BIT)
openair1/PHY/NR_TRANSPORT/nr_dlsch.c
+4
View File
@@ -38,6 +38,7 @@
#include "PHY/NR_REFSIG/ptrs_nr.h"
#include "common/utils/LOG/vcd_signal_dumper.h"
#include "common/utils/nr/nr_common.h"
#include "executables/softmodem-common.h"
//#define DEBUG_DLSCH
//#define DEBUG_DLSCH_MAPPING
@@ -147,6 +148,9 @@ void nr_generate_pdsch(processingData_L1tx_t *msgTx,
printf("\n");
#endif
if (IS_SOFTMODEM_DLSIM)
memcpy(harq->f, output, encoded_length);
/// scrambling
start_meas(dlsch_scrambling_stats);
for (int q=0; q<rel15->NrOfCodewords; q++) {
openair1/PHY/NR_TRANSPORT/nr_dlsch_coding.c
+8
View File
@@ -69,6 +69,10 @@ void free_gNB_dlsch(NR_gNB_DLSCH_t **dlschptr,
free16(harq->b, a_segments * 1056);
harq->b = NULL;
}
if (harq->f) {
free16(harq->f, N_RB * NR_SYMBOLS_PER_SLOT * NR_NB_SC_PER_RB * 8 * NR_MAX_NB_LAYERS);
harq->f = NULL;
}
for (int r = 0; r < a_segments; r++) {
free(harq->c[r]);
harq->c[r] = NULL;
@@ -177,6 +181,10 @@ NR_gNB_DLSCH_t *new_gNB_dlsch(NR_DL_FRAME_PARMS *frame_parms,
bzero(harq->c[r], 8448);
}
harq->f = malloc16(N_RB * NR_SYMBOLS_PER_SLOT * NR_NB_SC_PER_RB * 8 * NR_MAX_NB_LAYERS);
AssertFatal(harq->f, "cannot allocate harq->f\n");
bzero(harq->f, N_RB * NR_SYMBOLS_PER_SLOT * NR_NB_SC_PER_RB * 8 * NR_MAX_NB_LAYERS);
return(dlsch);
}
openair1/PHY/defs_gNB.h
+2
View File
@@ -96,6 +96,8 @@ typedef struct {
uint32_t subframe;
/// MIMO mode for this DLSCH
MIMO_mode_t mimo_mode;
/// Interleaver outputs
uint8_t *f;
/// LDPC lifting size
uint32_t Z;
} NR_DL_gNB_HARQ_t;
openair1/SIMULATION/NR_PHY/dlsim.c
+88 -62
View File
@@ -354,10 +354,13 @@ int main(int argc, char **argv)
int i,aa;//,l;
double sigma2, sigma2_dB=10, SNR, snr0=-2.0, snr1=2.0;
uint8_t snr1set=0;
double roundStats[500] = {0};
double blerStats[500] = {0};
double berStats[500] = {0};
double snrStats[500] = {0};
uint32_t errors_scrambling[4][100] = {{0}};
int n_errors[4][100] = {{0}};
int round_trials[4][100] = {{0}};
double roundStats[100] = {0};
double blerStats[4][100] = {{0}};
double berStats[4][100] = {{0}};
double snrStats[100] = {0};
float effRate;
//float psnr;
float eff_tp_check = 0.7;
@@ -375,7 +378,7 @@ int main(int argc, char **argv)
//int freq_offset;
// int subframe_offset;
// char fname[40], vname[40];
int trial, n_trials = 1, n_errors = 0, n_false_positive = 0;
int trial, n_trials = 1, n_false_positive = 0;
//int n_errors2, n_alamouti;
uint8_t n_tx=1,n_rx=1;
uint8_t round;
@@ -703,6 +706,7 @@ int main(int argc, char **argv)
get_softmodem_params()->phy_test = 1;
get_softmodem_params()->do_ra = 0;
set_softmodem_optmask(SOFTMODEM_DLSIM_BIT);
if (snr1set==0)
snr1 = snr0+10;
@@ -981,7 +985,6 @@ int main(int argc, char **argv)
unsigned char *estimated_output_bit;
unsigned char *test_input_bit;
unsigned int errors_bit = 0;
uint32_t errors_scrambling = 0;
initTpool("N", &(nrUE_params.Tpool), false);
@@ -1019,6 +1022,7 @@ int main(int argc, char **argv)
nr_ue_phy_config_request(&UE_mac->phy_config);
//NR_COMMON_channels_t *cc = RC.nrmac[0]->common_channels;
snrRun = 0;
int n_errs = 0;
gNB->threadPool = (tpool_t*)malloc(sizeof(tpool_t));
initTpool(gNBthreads, gNB->threadPool, true);
@@ -1052,11 +1056,9 @@ int main(int argc, char **argv)
clear_pdsch_stats(gNB);
n_errors = 0;
effRate = 0;
//n_errors2 = 0;
//n_alamouti = 0;
errors_scrambling=0;
n_false_positive = 0;
if (n_trials== 1) num_rounds = 1;
@@ -1088,6 +1090,7 @@ int main(int argc, char **argv)
UE_harq_process->first_rx = 1;
while ((round<num_rounds) && (UE_harq_process->ack==0)) {
round_trials[round][snrRun]++;
clear_nr_nfapi_information(RC.nrmac[0], 0, frame, slot);
@@ -1259,49 +1262,45 @@ int main(int argc, char **argv)
dlsch_threads,
NULL);
//----------------------------------------------------------
//---------------------- count errors ----------------------
//----------------------------------------------------------
if (UE->dlsch[UE_proc.thread_id][0][0]->last_iteration_cnt >=
UE->dlsch[UE_proc.thread_id][0][0]->max_ldpc_iterations+1)
n_errors[round][snrRun]++;
NR_UE_PDSCH **pdsch_vars = UE->pdsch_vars[UE_proc.thread_id];
int16_t *UE_llr = pdsch_vars[0]->llr[0];
TBS = UE_harq_process->TBS;//rel15->TBSize[0];
uint16_t length_dmrs = get_num_dmrs(rel15->dlDmrsSymbPos);
uint16_t nb_rb = rel15->rbSize;
uint8_t nb_re_dmrs = rel15->dmrsConfigType == NFAPI_NR_DMRS_TYPE1 ? 6*UE_harq_process->n_dmrs_cdm_groups : 4*UE_harq_process->n_dmrs_cdm_groups;
uint8_t mod_order = rel15->qamModOrder[0];
uint8_t nb_symb_sch = rel15->NrOfSymbols;
available_bits = nr_get_G(nb_rb, nb_symb_sch, nb_re_dmrs, length_dmrs, mod_order, rel15->nrOfLayers);
if(pdu_bit_map & 0x1) {
available_bits-= (ptrsSymbPerSlot * ptrsRePerSymb *rel15->nrOfLayers* 2);
printf("[DLSIM][PTRS] Available bits are: %5u, removed PTRS bits are: %5u \n",available_bits, (ptrsSymbPerSlot * ptrsRePerSymb *rel15->nrOfLayers* 2) );
}
for (i = 0; i < available_bits; i++) {
if(((gNB_dlsch->harq_process.f[i] == 0) && (UE_llr[i] <= 0)) ||
((gNB_dlsch->harq_process.f[i] == 1) && (UE_llr[i] >= 0)))
{
if(errors_scrambling[round][snrRun] == 0) {
LOG_D(PHY,"First bit in error in unscrambling = %d\n",i);
}
errors_scrambling[round][snrRun]++;
}
}
//printf("dlsim round %d ends\n",round);
round++;
} // round
//----------------------------------------------------------
//---------------------- count errors ----------------------
//----------------------------------------------------------
if (UE->dlsch[UE_proc.thread_id][0][0]->last_iteration_cnt >=
UE->dlsch[UE_proc.thread_id][0][0]->max_ldpc_iterations+1)
n_errors++;
//NR_UE_PDSCH **pdsch_vars = UE->pdsch_vars[UE_proc.thread_id];
//int16_t *UE_llr = pdsch_vars[0]->llr[0];
TBS = UE_harq_process->TBS;//rel15->TBSize[0];
uint16_t length_dmrs = get_num_dmrs(rel15->dlDmrsSymbPos);
uint16_t nb_rb = rel15->rbSize;
uint8_t nb_re_dmrs = rel15->dmrsConfigType == NFAPI_NR_DMRS_TYPE1 ? 6*UE_harq_process->n_dmrs_cdm_groups : 4*UE_harq_process->n_dmrs_cdm_groups;
uint8_t mod_order = rel15->qamModOrder[0];
uint8_t nb_symb_sch = rel15->NrOfSymbols;
available_bits = nr_get_G(nb_rb, nb_symb_sch, nb_re_dmrs, length_dmrs, mod_order, rel15->nrOfLayers);
if(pdu_bit_map & 0x1) {
available_bits-= (ptrsSymbPerSlot * ptrsRePerSymb *rel15->nrOfLayers* 2);
LOG_D(PHY,"[DLSIM][PTRS] Available bits are: %5u, removed PTRS bits are: %5u \n",available_bits, (ptrsSymbPerSlot * ptrsRePerSymb *rel15->nrOfLayers* 2) );
}
/*
for (i = 0; i < available_bits; i++) {
if(((gNB_dlsch->harq_process.f[i] == 0) && (UE_llr[i] <= 0)) ||
((gNB_dlsch->harq_process.f[i] == 1) && (UE_llr[i] >= 0)))
{
if(errors_scrambling == 0) {
LOG_D(PHY,"\n");
LOG_D(PHY,"First bit in error in unscrambling = %d\n",i);
}
errors_scrambling++;
}
}
*/
for (i = 0; i < TBS; i++) {
estimated_output_bit[i] = (UE_harq_process->b[i/8] & (1 << (i & 7))) >> (i & 7);
@@ -1309,7 +1308,7 @@ int main(int argc, char **argv)
if (estimated_output_bit[i] != test_input_bit[i]) {
if(errors_bit == 0)
LOG_D(PHY,"First bit in error in decoding = %d (errors scrambling %d)\n",i,errors_scrambling);
LOG_D(PHY,"First bit in error in decoding = %d\n",i);
errors_bit++;
}
@@ -1317,11 +1316,6 @@ int main(int argc, char **argv)
////////////////////////////////////////////////////////////
if (errors_scrambling > 0) {
if (n_trials == 1)
printf("errors_scrambling = %u/%u (trial %d)\n", errors_scrambling, available_bits,trial);
}
if (errors_bit > 0) {
n_false_positive++;
if (n_trials == 1)
@@ -1331,18 +1325,48 @@ int main(int argc, char **argv)
if (UE_harq_process->ack==1) effRate += ((float)TBS)/round;
} // noise trials
blerStats[snrRun] = (float) n_errors / (float) n_trials;
roundStats[snrRun]/=((float)n_trials);
berStats[snrRun] = (double)errors_scrambling/available_bits/n_trials;
blerStats[0][snrRun] = (double)n_errors[0][snrRun]/round_trials[0][snrRun];
blerStats[1][snrRun] = (double)n_errors[1][snrRun]/round_trials[1][snrRun];
blerStats[2][snrRun] = (double)n_errors[2][snrRun]/round_trials[2][snrRun];
blerStats[3][snrRun] = (double)n_errors[3][snrRun]/round_trials[3][snrRun];
berStats[0][snrRun] = (double)errors_scrambling[0][snrRun]/available_bits/round_trials[0][snrRun];
berStats[1][snrRun] = (double)errors_scrambling[1][snrRun]/available_bits/round_trials[1][snrRun];
berStats[2][snrRun] = (double)errors_scrambling[2][snrRun]/available_bits/round_trials[2][snrRun];
berStats[3][snrRun] = (double)errors_scrambling[3][snrRun]/available_bits/round_trials[3][snrRun];
effRate /= n_trials;
printf("*****************************************\n");
printf("SNR %f, (false positive %f)\n", SNR,
(float) n_errors / (float) n_trials);
printf("*****************************************\n");
printf("SNR %f: n_errors (%d/%d,%d/%d,%d/%d,%d/%d) (negative CRC), false_positive %d/%d, errors_scrambling (%u/%u,%u/%u,%u/%u,%u/%u\n",
SNR,
n_errors[0][snrRun], round_trials[0][snrRun],
n_errors[1][snrRun], round_trials[1][snrRun],
n_errors[2][snrRun], round_trials[2][snrRun],
n_errors[3][snrRun], round_trials[3][snrRun],
n_false_positive, n_trials,
errors_scrambling[0][snrRun], available_bits*round_trials[0][snrRun],
errors_scrambling[1][snrRun], available_bits*round_trials[1][snrRun],
errors_scrambling[2][snrRun], available_bits*round_trials[2][snrRun],
errors_scrambling[3][snrRun], available_bits*round_trials[3][snrRun]);
printf("\n");
dump_pdsch_stats(stdout,gNB);
printf("SNR %f : n_errors (negative CRC) = %d/%d, Avg round %.2f, Channel BER %e, BLER %.2f, Eff Rate %.4f bits/slot, Eff Throughput %.2f, TBS %u bits/slot\n",
SNR, n_errors, n_trials,roundStats[snrRun],berStats[snrRun],blerStats[snrRun],effRate,effRate/TBS*100,TBS);
printf("SNR %f: Channel BLER (%e,%e,%e,%e), Channel BER (%e,%e,%e,%e) Avg round %.2f, Eff Rate %.4f bits/slot, Eff Throughput %.2f, TBS %u bits/slot\n",
SNR,
blerStats[0][snrRun],
blerStats[1][snrRun],
blerStats[2][snrRun],
blerStats[3][snrRun],
berStats[0][snrRun],
berStats[1][snrRun],
berStats[2][snrRun],
berStats[3][snrRun],
roundStats[snrRun],
effRate,
effRate/TBS*100,
TBS);
printf("*****************************************\n");
printf("\n");
if (print_perf==1) {
@@ -1402,6 +1426,7 @@ int main(int argc, char **argv)
LOG_M("rxsig0.m","rxs0", UE->common_vars.rxdata[0], frame_length_complex_samples, 1, 1);
if (UE->frame_parms.nb_antennas_rx>1)
LOG_M("rxsig1.m","rxs1", UE->common_vars.rxdata[1], frame_length_complex_samples, 1, 1);
LOG_M("rxF0.m","rxF0", UE->common_vars.common_vars_rx_data_per_thread[UE_proc.thread_id].rxdataF[0], frame_parms->samples_per_slot_wCP, 1, 1);
LOG_M("chestF0.m","chF0",&UE->pdsch_vars[0][0]->dl_ch_estimates_ext[0][0],g_rbSize*12*14,1,1);
write_output("rxF_comp.m","rxFc",&UE->pdsch_vars[0][0]->rxdataF_comp0[0][0],N_RB_DL*12*14,1,1);
LOG_M("rxF_llr.m","rxFllr",UE->pdsch_vars[UE_proc.thread_id][0]->llr[0],available_bits,1,0);
@@ -1417,6 +1442,7 @@ int main(int argc, char **argv)
snrStats[snrRun] = SNR;
snrRun++;
n_errs = n_errors[0][snrRun];
} // NSR
LOG_M("dlsimStats.m","SNR",snrStats,snrRun,1,7);
@@ -1460,8 +1486,8 @@ int main(int argc, char **argv)
if (scg_fd)
fclose(scg_fd);
return(n_errors);
return n_errs;
}