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Configure Frame Structure (including TDD) in MAC

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* use config_frame_structure in config_common:
  - fill frame_structure in MAC and NFAPI Config Request
  - use get_tdd_period_idx to set periodicity index in Config Request
  - use config_tdd_patterns to fill tdd_period_config
  - use set_tdd_config_nr to complete NFAPI Config Request configuration

Co-authored-by: Guido Casati <guido.casati@firecell.io>
This commit is contained in:
vijay chadachan
2025-01-28 10:07:31 +01:00
committed by Guido Casati
co-authored by Guido Casati
parent 30f6da16f0
commit ad8930e2c4
1 changed files with 4 additions and 26 deletions
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openair2/LAYER2/NR_MAC_gNB/config.c
+4 -26
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@@ -464,6 +464,7 @@ static int config_frame_structure(int mu,
cfg->tdd_table.tdd_period.tl.tag = NFAPI_NR_CONFIG_TDD_PERIOD_TAG;
cfg->num_tlv++;
cfg->tdd_table.tdd_period.value = get_tdd_period_idx(scc->tdd_UL_DL_ConfigurationCommon);
LOG_D(NR_MAC, "Setting TDD configuration period to %d\n", cfg->tdd_table.tdd_period.value);
fs->numb_period_frame = get_nb_periods_per_frame(cfg->tdd_table.tdd_period.value);
fs->numb_slots_period = fs->numb_slots_frame / fs->numb_period_frame;
fs->is_tdd = true;
@@ -765,32 +766,9 @@ static void config_common(gNB_MAC_INST *nrmac,
cfg->num_tlv++;
cfg->num_tlv++;
// TDD Table Configuration
if (cfg->cell_config.frame_duplex_type.value == TDD) {
cfg->tdd_table.tdd_period.tl.tag = NFAPI_NR_CONFIG_TDD_PERIOD_TAG;
cfg->num_tlv++;
if (scc->tdd_UL_DL_ConfigurationCommon->pattern1.ext1 == NULL) {
cfg->tdd_table.tdd_period.value = scc->tdd_UL_DL_ConfigurationCommon->pattern1.dl_UL_TransmissionPeriodicity;
} else {
AssertFatal(scc->tdd_UL_DL_ConfigurationCommon->pattern1.ext1->dl_UL_TransmissionPeriodicity_v1530 != NULL,
"In %s: scc->tdd_UL_DL_ConfigurationCommon->pattern1.ext1->dl_UL_TransmissionPeriodicity_v1530 is null\n",
__FUNCTION__);
cfg->tdd_table.tdd_period.value = *scc->tdd_UL_DL_ConfigurationCommon->pattern1.ext1->dl_UL_TransmissionPeriodicity_v1530;
}
LOG_D(NR_MAC, "Setting TDD configuration period to %d\n", cfg->tdd_table.tdd_period.value);
NR_TDD_UL_DL_Pattern_t *pattern1 = &scc->tdd_UL_DL_ConfigurationCommon->pattern1;
tdd_period_config_t period_cfg = {.num_dl_slots = pattern1->nrofDownlinkSlots,
.num_ul_slots = pattern1->nrofUplinkSlots,
.tdd_slot_bitmap[0].slot_type = TDD_NR_MIXED_SLOT,
.tdd_slot_bitmap[0].num_dl_symbols = pattern1->nrofDownlinkSymbols,
.tdd_slot_bitmap[0].num_ul_symbols = pattern1->nrofUplinkSymbols};
frame_structure_t fs = {.period_cfg = period_cfg, .is_tdd = true};
fs.numb_slots_frame = nr_slots_per_frame[scs];
fs.numb_period_frame = get_nb_periods_per_frame(cfg->tdd_table.tdd_period.value);
fs.numb_slots_period = ((1 << scs) * NR_NUMBER_OF_SUBFRAMES_PER_FRAME) / fs.numb_period_frame;
set_tdd_config_nr(cfg, &fs);
AssertFatal(fs.numb_period_frame > 0, "TDD configuration cannot be configured\n");
}
// Frame structure configuration
uint8_t mu = frequencyInfoUL->scs_SpecificCarrierList.list.array[0]->subcarrierSpacing;
config_frame_structure(mu, scc, cfg, &nrmac->frame_structure);
int nb_tx = config->nb_bfw[0]; // number of tx antennas
int nb_beams = config->nb_bfw[1]; // number of beams