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Parallelize the PUSCH channel estimation

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- add new data structures for antenna processing.
- create arrays that keep track of certain values (max_ch, noise_amp2, nest_count and delay) per each antenna. These values are processed in order to determine one final output.
- add time processing measurements for each antenna, and prints them in nr_ulsim.
- make num_antennas_per_thread configurable in nr_ulsim and the gNB config file.

Co-authored-by: Nada Bouknana <bouknana@eurecom.fr>
Co-authored-by: Brice Robert <brobert@valiha.com>
This commit is contained in:
Bartosz Podrygajlo
2024-11-15 12:35:06 +01:00
co-authored by Nada Bouknana Brice Robert
parent 25dde24d1e
commit 5605b0c0c6
6 changed files with 245 additions and 96 deletions
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openair1/SIMULATION/NR_PHY/ulsim.c
+11 -1
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@@ -213,6 +213,7 @@ int main(int argc, char *argv[])
int params_from_file = 0;
int threadCnt=0;
int max_ldpc_iterations = 5;
int num_antennas_per_thread = 1;
if ((uniqCfg = load_configmodule(argc, argv, CONFIG_ENABLECMDLINEONLY)) == 0) {
exit_fun("[NR_ULSIM] Error, configuration module init failed\n");
}
@@ -224,7 +225,7 @@ int main(int argc, char *argv[])
InitSinLUT();
int c;
while ((c = getopt(argc, argv, "--:O:a:b:c:d:ef:g:h:i:k:m:n:op:q:r:s:t:u:v:w:y:z:C:F:G:H:I:M:N:PR:S:T:U:L:ZW:E:X:")) != -1) {
while ((c = getopt(argc, argv, "--:O:a:b:c:d:ef:g:h:i:k:m:n:op:q:r:s:t:u:v:w:y:z:A:C:F:G:H:I:M:N:PR:S:T:U:L:ZW:E:X:")) != -1) {
/* ignore long options starting with '--', option '-O' and their arguments that are handled by configmodule */
/* with this opstring getopt returns 1 for non-option arguments, refer to 'man 3 getopt' */
@@ -395,6 +396,10 @@ int main(int argc, char *argv[])
}
break;
case 'A':
num_antennas_per_thread = atoi(optarg);
break;
case 'F':
input_fd = fopen(optarg, "r");
if (input_fd == NULL) {
@@ -512,6 +517,7 @@ int main(int argc, char *argv[])
printf("-w Start PRB for PUSCH\n");
printf("-y Number of TX antennas used at UE\n");
printf("-z Number of RX antennas used at gNB\n");
printf("-A Number of antennas per thread for PUSCH channel estimation\n");
printf("-C Specify the number of threads for the simulation\n");
printf("-E {SRS: [0] Disabled, [1] Enabled} e.g. -E 1\n");
printf("-F Input filename (.txt format) for RX conformance testing\n");
@@ -559,6 +565,7 @@ int main(int argc, char *argv[])
gNB = RC.gNB[0];
gNB->ofdm_offset_divisor = UINT_MAX;
gNB->num_pusch_symbols_per_thread = 1;
gNB->dmrs_num_antennas_per_thread = num_antennas_per_thread;
gNB->RU_list[0] = calloc(1, sizeof(**gNB->RU_list));
gNB->RU_list[0]->rfdevice.openair0_cfg = openair0_cfg;
@@ -566,6 +573,7 @@ int main(int argc, char *argv[])
initNotifiedFIFO(&gNB->respDecode);
initNotifiedFIFO(&gNB->respPuschSymb);
initNotifiedFIFO(&gNB->respPuschAarx);
initNotifiedFIFO(&gNB->L1_tx_free);
initNotifiedFIFO(&gNB->L1_tx_filled);
initNotifiedFIFO(&gNB->L1_tx_out);
@@ -952,6 +960,7 @@ int main(int argc, char *argv[])
reset_meas(&gNB->rx_pusch_symbol_processing_stats);
reset_meas(&gNB->ulsch_decoding_stats);
reset_meas(&gNB->ulsch_channel_estimation_stats);
reset_meas(&gNB->pusch_channel_estimation_antenna_processing_stats);
reset_meas(&gNB->rx_srs_stats);
reset_meas(&gNB->generate_srs_stats);
reset_meas(&gNB->get_srs_signal_stats);
@@ -1512,6 +1521,7 @@ int main(int argc, char *argv[])
printDistribution(&gNB->phy_proc_rx,table_rx, "Total PHY proc rx");
printStatIndent(&gNB->rx_pusch_stats, "RX PUSCH time");
printStatIndent2(&gNB->ulsch_channel_estimation_stats, "ULSCH channel estimation time");
printStatIndent3(&gNB->pusch_channel_estimation_antenna_processing_stats, "Antenna Processing time");
printStatIndent2(&gNB->rx_pusch_init_stats, "RX PUSCH Initialization time");
printStatIndent2(&gNB->rx_pusch_symbol_processing_stats, "RX PUSCH Symbol Processing time");
printStatIndent(&gNB->ulsch_decoding_stats,"ULSCH total decoding time");