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simpler RU beam management by storing RU beam index at L1 instead of FAPI beam index

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This commit is contained in:
francescomani
2025-06-09 12:00:17 +02:00
parent bd05075ac6
commit 8a544b9fbb
8 changed files with 44 additions and 9 deletions
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openair1/PHY/NR_TRANSPORT/nr_dci.c
+1
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@@ -82,6 +82,7 @@ static void nr_generate_dci(PHY_VARS_gNB *gNB,
// multi-beam number (for concurrent beams)
int bitmap = SL_to_bitmap(cset_start_symb, pdcch_pdu_rel15->DurationSymbols);
int beam_nb = beam_index_allocation(dci_pdu->precodingAndBeamforming.prgs_list[0].dig_bf_interface_list[0].beam_idx,
&gNB->gNB_config.dbt_config,
&gNB->common_vars,
slot,
frame_parms->symbols_per_slot,
openair1/PHY/NR_TRANSPORT/nr_dlsch.c
+1
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@@ -681,6 +681,7 @@ static int do_one_dlsch(unsigned char *input_ptr, PHY_VARS_gNB *gNB, NR_gNB_DLSC
// beam number in multi-beam scenario (concurrent beams)
int bitmap = SL_to_bitmap(rel15->StartSymbolIndex, rel15->NrOfSymbols);
int beam_nb = beam_index_allocation(pb->prgs_list[0].dig_bf_interface_list[0].beam_idx,
&gNB->gNB_config.dbt_config,
&gNB->common_vars,
slot,
frame_parms->symbols_per_slot,
openair1/PHY/NR_TRANSPORT/nr_prach.c
+6 -1
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@@ -85,7 +85,12 @@ void nr_fill_prach(PHY_VARS_gNB *gNB, int SFN, int Slot, nfapi_nr_prach_pdu_t *p
// TODO no idea how to compute final prach symbol here so for now we go til the end of the slot
int temp_nb_symbols = NR_NUMBER_OF_SYMBOLS_PER_SLOT - prach_pdu->prach_start_symbol;
int bitmap = SL_to_bitmap(prach_pdu->prach_start_symbol, temp_nb_symbols);
prach->beam_nb = beam_index_allocation(fapi_beam_idx, &gNB->common_vars, Slot, NR_NUMBER_OF_SYMBOLS_PER_SLOT, bitmap);
prach->beam_nb = beam_index_allocation(fapi_beam_idx,
&gNB->gNB_config.dbt_config,
&gNB->common_vars,
Slot,
NR_NUMBER_OF_SYMBOLS_PER_SLOT,
bitmap);
}
LOG_D(NR_PHY,"Copying prach pdu %d bytes to index %d\n", (int)sizeof(*prach_pdu), prach_id);
memcpy(&prach->pdu, prach_pdu, sizeof(*prach_pdu));
openair1/PHY/NR_TRANSPORT/nr_ulsch.c
+6 -1
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@@ -76,7 +76,12 @@ void nr_fill_ulsch(PHY_VARS_gNB *gNB, int frame, int slot, nfapi_nr_pusch_pdu_t
if (gNB->common_vars.beam_id) {
int fapi_beam_idx = ulsch_pdu->beamforming.prgs_list[0].dig_bf_interface_list[0].beam_idx;
int bitmap = SL_to_bitmap(ulsch_pdu->start_symbol_index, ulsch_pdu->nr_of_symbols);
ulsch->beam_nb = beam_index_allocation(fapi_beam_idx, &gNB->common_vars, slot, NR_NUMBER_OF_SYMBOLS_PER_SLOT, bitmap);
ulsch->beam_nb = beam_index_allocation(fapi_beam_idx,
&gNB->gNB_config.dbt_config,
&gNB->common_vars,
slot,
NR_NUMBER_OF_SYMBOLS_PER_SLOT,
bitmap);
}
ulsch->frame = frame;
ulsch->slot = slot;
openair1/PHY/NR_TRANSPORT/pucch_rx.c
+6 -1
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@@ -73,7 +73,12 @@ void nr_fill_pucch(PHY_VARS_gNB *gNB,
if (gNB->common_vars.beam_id) {
int fapi_beam_idx = pucch_pdu->beamforming.prgs_list[0].dig_bf_interface_list[0].beam_idx;
int bitmap = SL_to_bitmap(pucch_pdu->start_symbol_index, pucch_pdu->nr_of_symbols);
pucch->beam_nb = beam_index_allocation(fapi_beam_idx, &gNB->common_vars, slot, NR_NUMBER_OF_SYMBOLS_PER_SLOT, bitmap);
pucch->beam_nb = beam_index_allocation(fapi_beam_idx,
&gNB->gNB_config.dbt_config,
&gNB->common_vars,
slot,
NR_NUMBER_OF_SYMBOLS_PER_SLOT,
bitmap);
}
memcpy((void *)&pucch->pucch_pdu, (void *)pucch_pdu, sizeof(nfapi_nr_pucch_pdu_t));
LOG_D(PHY,
openair1/PHY/NR_TRANSPORT/srs_rx.c
+6 -1
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@@ -59,7 +59,12 @@ void nr_fill_srs(PHY_VARS_gNB *gNB, frame_t frame, slot_t slot, nfapi_nr_srs_pdu
if (gNB->common_vars.beam_id) {
int bitmap = SL_to_bitmap(srs_pdu->time_start_position, 1 << srs_pdu->num_symbols);
int fapi_beam_idx = srs_pdu->beamforming.prgs_list[0].dig_bf_interface_list[0].beam_idx;
srs->beam_nb = beam_index_allocation(fapi_beam_idx, &gNB->common_vars, slot, NR_NUMBER_OF_SYMBOLS_PER_SLOT, bitmap);
srs->beam_nb = beam_index_allocation(fapi_beam_idx,
&gNB->gNB_config.dbt_config,
&gNB->common_vars,
slot,
NR_NUMBER_OF_SYMBOLS_PER_SLOT,
bitmap);
}
memcpy((void *)&srs->srs_pdu, (void *)srs_pdu, sizeof(nfapi_nr_srs_pdu_t));
break;
openair1/SCHED_NR/phy_procedures_nr_gNB.c
+12 -4
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@@ -45,18 +45,24 @@
//#define DEBUG_RXDATA
//#define SRS_IND_DEBUG
int beam_index_allocation(int fapi_beam_index, NR_gNB_COMMON *common_vars, int slot, int symbols_per_slot, int bitmap_symbols)
int beam_index_allocation(int fapi_beam_index,
nfapi_nr_dbt_pdu_t *dbt_config,
NR_gNB_COMMON *common_vars,
int slot,
int symbols_per_slot,
int bitmap_symbols)
{
if (!common_vars->beam_id)
return 0;
int idx = -1;
int ru_beam_idx = dbt_config->dig_beam_list[fapi_beam_index].txru_list[0].dig_beam_weight_Re;
for (int j = 0; j < common_vars->num_beams_period; j++) {
for (int i = 0; i < symbols_per_slot; i++) {
if (((bitmap_symbols >> i) & 0x01) == 0)
continue;
int current_beam = common_vars->beam_id[j][slot * symbols_per_slot + i];
if (current_beam == -1 || current_beam == fapi_beam_index)
if (current_beam == -1 || current_beam == ru_beam_idx)
idx = j;
else {
idx = -1;
@@ -66,10 +72,10 @@ int beam_index_allocation(int fapi_beam_index, NR_gNB_COMMON *common_vars, int s
if (idx != -1)
break;
}
AssertFatal(idx >= 0, "Couldn't allocate beam ID %d\n", fapi_beam_index);
AssertFatal(idx >= 0, "Couldn't allocate beam ID %d\n", ru_beam_idx);
for (int j = 0; j < symbols_per_slot; j++) {
if (((bitmap_symbols >> j) & 0x01))
common_vars->beam_id[idx][slot * symbols_per_slot + j] = fapi_beam_index;
common_vars->beam_id[idx][slot * symbols_per_slot + j] = ru_beam_idx;
}
LOG_D(PHY, "Allocating beam %d in slot %d\n", idx, slot);
return idx;
@@ -132,6 +138,7 @@ void nr_common_signal_procedures(PHY_VARS_gNB *gNB, int frame, int slot, nfapi_n
// beam number in a scenario with multiple concurrent beams
int bitmap = SL_to_bitmap(ssb_start_symbol, 4); // 4 ssb symbols
int beam_nb = beam_index_allocation(pb->prgs_list[0].dig_bf_interface_list[0].beam_idx,
&cfg->dbt_config,
&gNB->common_vars,
slot,
fp->symbols_per_slot,
@@ -273,6 +280,7 @@ void phy_procedures_gNB_TX(processingData_L1tx_t *msgTx,
for (int j = 0; j < mapping_parms.size; j++)
csi_bitmap |= ((1 << lprime_num) - 1) << mapping_parms.loverline[j];
int beam_nb = beam_index_allocation(pb->prgs_list[0].dig_bf_interface_list[0].beam_idx,
&cfg->dbt_config,
&gNB->common_vars,
slot,
fp->symbols_per_slot,
openair1/SCHED_NR/sched_nr.h
+6 -1
View File
@@ -47,5 +47,10 @@ void feptx_prec(RU_t *ru,int frame_tx,int tti_tx);
void nr_phy_init_RU(RU_t *ru);
void nr_phy_free_RU(RU_t *ru);
void clear_slot_beamid(PHY_VARS_gNB *gNB, int slot);
int beam_index_allocation(int fapi_beam_index, NR_gNB_COMMON *common_vars, int slot, int symbols_per_slot, int bitmap_symbols);
int beam_index_allocation(int fapi_beam_index,
nfapi_nr_dbt_pdu_t *dbt_config,
NR_gNB_COMMON *common_vars,
int slot,
int symbols_per_slot,
int bitmap_symbols);
#endif