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Merge remote-tracking branch 'origin/NR_PTRS_improvements' into integration_2023_w44

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This commit is contained in:
Robert Schmidt
2023-11-12 05:14:25 +01:00
parent 3bede49b9b 629825aca6
commit 3fd45922b7
19 changed files with 263 additions and 316 deletions
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openair1/SIMULATION/NR_PHY/dlschsim.c
+2 -1
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@@ -446,7 +446,7 @@ int main(int argc, char **argv)
// dlsch->harq_processes[0]->nb_rb,dlsch->harq_processes[0]->mcs,dlsch->harq_processes[0]->Nl);
unsigned char mod_order = nr_get_Qm_dl(Imcs, mcs_table);
uint16_t rate = nr_get_code_rate_dl(Imcs, mcs_table);
unsigned int available_bits = nr_get_G(nb_rb, nb_symb_sch, nb_re_dmrs, length_dmrs, mod_order, 1);
unsigned int available_bits = nr_get_G(nb_rb, nb_symb_sch, nb_re_dmrs, length_dmrs, 0, mod_order, Nl);
TBS = nr_compute_tbs(mod_order,rate, nb_rb, nb_symb_sch, nb_re_dmrs*length_dmrs, 0, 0, Nl);
printf("available bits %u TBS %u mod_order %d\n", available_bits, TBS, mod_order);
//dlsch->harq_ids[subframe]= 0;
@@ -472,6 +472,7 @@ int main(int argc, char **argv)
unsigned char estimated_output_bit[16 * 68 * 384];
NR_UE_DLSCH_t *dlsch0_ue = &dlsch_ue[0];
NR_DL_UE_HARQ_t *harq_process = &UE->dl_harq_processes[0][harq_pid];
harq_process->G = available_bits;
harq_process->first_rx = 1;
dlsch0_ue->dlsch_config.mcs = Imcs;
dlsch0_ue->dlsch_config.mcs_table = mcs_table;
openair1/SIMULATION/NR_PHY/dlsim.c
+5 -6
View File
@@ -1018,8 +1018,8 @@ int main(int argc, char **argv)
1<<pdsch_pdu_rel15->PTRSTimeDensity,
pdsch_pdu_rel15->dlDmrsSymbPos);
ptrsSymbPerSlot = get_ptrs_symbols_in_slot(dlPtrsSymPos, pdsch_pdu_rel15->StartSymbolIndex, pdsch_pdu_rel15->NrOfSymbols);
ptrsRePerSymb = ((rel15->rbSize + rel15->PTRSFreqDensity - 1)/rel15->PTRSFreqDensity);
LOG_D(PHY,"[DLSIM] PTRS Symbols in a slot: %2u, RE per Symbol: %3u, RE in a slot %4d\n", ptrsSymbPerSlot,ptrsRePerSymb, ptrsSymbPerSlot*ptrsRePerSymb );
ptrsRePerSymb = ((rel15->rbSize + rel15->PTRSFreqDensity - 1) / rel15->PTRSFreqDensity);
LOG_D(PHY,"[DLSIM] PTRS Symbols in a slot: %2u, RE per Symbol: %3u, RE in a slot %4d\n", ptrsSymbPerSlot, ptrsRePerSymb, ptrsSymbPerSlot * ptrsRePerSymb);
}
msgDataTx->ssb[0].ssb_pdu.ssb_pdu_rel15.bchPayload=0x001234;
@@ -1125,12 +1125,11 @@ int main(int argc, char **argv)
uint8_t nb_re_dmrs = rel15->dmrsConfigType == NFAPI_NR_DMRS_TYPE1 ? 6*dlsch0->dlsch_config.n_dmrs_cdm_groups : 4*dlsch0->dlsch_config.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);
uint32_t unav_res = ptrsSymbPerSlot * ptrsRePerSymb;
available_bits = nr_get_G(nb_rb, nb_symb_sch, nb_re_dmrs, length_dmrs, unav_res, mod_order, rel15->nrOfLayers);
if (pdu_bit_map & 0x1) {
available_bits -= (ptrsSymbPerSlot * ptrsRePerSymb * rel15->nrOfLayers * 2);
if (trial == 0 && round == 0) {
printf("[DLSIM][PTRS] Available bits are: %5u, removed PTRS bits are: %5u \n", 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 * mod_order));
}
}
openair1/SIMULATION/NR_PHY/ulschsim.c
+2 -9
View File
@@ -464,7 +464,7 @@ int main(int argc, char **argv)
mod_order = nr_get_Qm_ul(Imcs, mcs_table);
code_rate = nr_get_code_rate_ul(Imcs, mcs_table);
available_bits = nr_get_G(nb_rb, nb_symb_sch, nb_re_dmrs, length_dmrs, mod_order, Nl);
available_bits = nr_get_G(nb_rb, nb_symb_sch, nb_re_dmrs, length_dmrs, 0, mod_order, Nl);
TBS = nr_compute_tbs(mod_order,code_rate, nb_rb, nb_symb_sch, nb_re_dmrs*length_dmrs, 0, 0, Nl);
printf("\nAvailable bits %u TBS %u mod_order %d\n", available_bits, TBS, mod_order);
@@ -519,7 +519,7 @@ int main(int argc, char **argv)
/////////////////////////ULSCH coding/////////////////////////
///////////
unsigned int G = nr_get_G(nb_rb, nb_symb_sch, nb_re_dmrs, length_dmrs, mod_order, Nl);
unsigned int G = available_bits;
if (input_fd == NULL) {
nr_ulsch_encoding(UE, ulsch_ue, frame_parms, harq_pid, TBS>>3, G);
@@ -586,13 +586,6 @@ int main(int argc, char **argv)
exit(-1);
#endif
uint32_t G = nr_get_G(rel15_ul->rb_size,
rel15_ul->nr_of_symbols,
nb_re_dmrs,
1, // FIXME only single dmrs is implemented
rel15_ul->qam_mod_order,
rel15_ul->nrOfLayers);
int nbDecode = nr_ulsch_decoding(gNB, UE_id, channel_output_fixed, frame_parms, rel15_ul, frame, subframe, harq_pid, G);
int nb_ok = 0;
if (nbDecode > 0)
openair1/SIMULATION/NR_PHY/ulsim.c
+14 -21
View File
@@ -791,18 +791,12 @@ int main(int argc, char *argv[])
}
nb_re_dmrs = nb_re_dmrs * num_dmrs_cdm_grps_no_data;
unsigned int available_bits = nr_get_G(nb_rb, nb_symb_sch, nb_re_dmrs, number_dmrs_symbols, mod_order, precod_nbr_layers);
unsigned int TBS = nr_compute_tbs(mod_order, code_rate, nb_rb, nb_symb_sch, nb_re_dmrs * number_dmrs_symbols, 0, 0, precod_nbr_layers);
printf("[ULSIM]: length_dmrs: %u, l_prime_mask: %u number_dmrs_symbols: %u, mapping_type: %u add_pos: %d \n", length_dmrs, l_prime_mask, number_dmrs_symbols, mapping_type, add_pos);
printf("[ULSIM]: CDM groups: %u, dmrs_config_type: %d, num_rbs: %u, nb_symb_sch: %u\n", num_dmrs_cdm_grps_no_data, dmrs_config_type, nb_rb, nb_symb_sch);
printf("[ULSIM]: MCS: %d, mod order: %u, code_rate: %u\n", Imcs, mod_order, code_rate);
printf("[ULSIM]: VALUE OF G: %u, TBS: %u\n", available_bits, TBS);
uint8_t ulsch_input_buffer[TBS/8];
ulsch_input_buffer[0] = 0x31;
@@ -812,7 +806,6 @@ int main(int argc, char *argv[])
uint8_t ptrs_time_density = get_L_ptrs(ptrs_mcs1, ptrs_mcs2, ptrs_mcs3, Imcs, mcs_table);
uint8_t ptrs_freq_density = get_K_ptrs(n_rb0, n_rb1, nb_rb);
int ptrs_symbols = 0; // to calculate total PTRS RE's in a slot
double ts = 1.0/(frame_parms->subcarrier_spacing * frame_parms->ofdm_symbol_size);
@@ -834,6 +827,18 @@ int main(int argc, char *argv[])
printf("\n");
uint32_t unav_res = 0;
if (pdu_bit_map & PUSCH_PDU_BITMAP_PUSCH_PTRS) {
set_ptrs_symb_idx(&ptrsSymPos, nb_symb_sch, start_symbol, 1 << ptrs_time_density, l_prime_mask);
ptrsSymbPerSlot = get_ptrs_symbols_in_slot(ptrsSymPos, start_symbol, nb_symb_sch);
ptrsRePerSymb = ((nb_rb + ptrs_freq_density - 1) / ptrs_freq_density);
unav_res = ptrsSymbPerSlot * ptrsRePerSymb;
LOG_D(PHY, "[ULSIM] PTRS Symbols in a slot: %2u, RE per Symbol: %3u, RE in a slot %4d\n", ptrsSymbPerSlot, ptrsRePerSymb, unav_res);
}
unsigned int available_bits = nr_get_G(nb_rb, nb_symb_sch, nb_re_dmrs, number_dmrs_symbols, unav_res, mod_order, precod_nbr_layers);
printf("[ULSIM]: VALUE OF G: %u, TBS: %u\n", available_bits, TBS);
int frame_length_complex_samples = frame_parms->samples_per_subframe*NR_NUMBER_OF_SUBFRAMES_PER_FRAME;
for (int aatx=0; aatx<n_tx; aatx++) {
s_re[aatx] = calloc(1,frame_length_complex_samples*sizeof(double));
@@ -1210,13 +1215,6 @@ int main(int argc, char *argv[])
} /*End input_fd */
if (pusch_pdu->pdu_bit_map & PUSCH_PDU_BITMAP_PUSCH_PTRS) {
set_ptrs_symb_idx(&ptrsSymPos, pusch_pdu->nr_of_symbols, pusch_pdu->start_symbol_index, 1 << ptrs_time_density, pusch_pdu->ul_dmrs_symb_pos);
ptrsSymbPerSlot = get_ptrs_symbols_in_slot(ptrsSymPos, pusch_pdu->start_symbol_index, pusch_pdu->nr_of_symbols);
ptrsRePerSymb = ((pusch_pdu->rb_size + ptrs_freq_density - 1) / ptrs_freq_density);
LOG_D(PHY, "[ULSIM] PTRS Symbols in a slot: %2u, RE per Symbol: %3u, RE in a slot %4d\n", ptrsSymbPerSlot, ptrsRePerSymb, ptrsSymbPerSlot * ptrsRePerSymb);
}
//----------------------------------------------------------
//------------------- gNB phy procedures -------------------
//----------------------------------------------------------
@@ -1452,13 +1450,8 @@ int main(int argc, char *argv[])
//----------------------------------------------------------
if ((pusch_pdu->pdu_bit_map & PUSCH_PDU_BITMAP_PUSCH_PTRS) && (SNR == snr0) && (trial == 0) && (round == 0)) {
ptrs_symbols = 0;
for (int i = pusch_pdu->start_symbol_index; i < pusch_pdu->start_symbol_index + pusch_pdu->nr_of_symbols; i++)
ptrs_symbols += ((pusch_vars->ptrs_symbols) >> i) & 1;
/* 2*5*(50/2), for RB = 50,K = 2 for 5 OFDM PTRS symbols */
available_bits -= 2 * ptrs_symbols * ((nb_rb + ptrs_freq_density - 1) / ptrs_freq_density);
printf("[ULSIM][PTRS] Available bits are: %5u, removed PTRS bits are: %5d \n", available_bits, (ptrsSymbPerSlot * ptrsRePerSymb * 2));
printf("[ULSIM][PTRS] Available bits are: %5u, removed PTRS bits are: %5d \n",
available_bits, (ptrsSymbPerSlot * ptrsRePerSymb * mod_order * precod_nbr_layers));
}
for (i = 0; i < available_bits; i++) {