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Implement MAC/RRC setter/getter functions to support multiple TDD patterns

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* set_tdd_bmap_period, config_tdd_patterns: to configure TDD period, including bitmap, in the frame structure
* get_tdd_periodicity: to retrieve the periodicity in milliseconds for the given TDD pattern
* get_tdd_period_idx: to get the TDD period index based on pattern periodicities
* get_ul_slots_per_period: get the number of UL slots (including mixed with UL symbols) in period
* get_full_ul_slots_per_period: get the number of full UL slots in period
* get_dl_slots_per_period: get the number of DL slots (including mixed with DL symbols) in period
* get_full_dl_slots_per_period: get the number of full DL slots in period

Co-authored-by: vijay chadachan <vijay.chadachan@firecell.io>
This commit is contained in:
Guido Casati
2025-01-28 09:42:45 +01:00
committed by Guido Casati
co-authored by vijay chadachan
parent 9cf1ce7427
commit c3a6700037
6 changed files with 270 additions and 0 deletions
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openair2/RRC/NR/nr_rrc_config.c
+53
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@@ -919,6 +919,59 @@ void nr_rrc_config_dl_tda(struct NR_PDSCH_TimeDomainResourceAllocationList *pdsc
}
}
const float tdd_ms_period_pattern[] = {0.5, 0.625, 1.0, 1.25, 2.0, 2.5, 5.0, 10.0};
const float tdd_ms_period_ext[] = {3.0, 4.0};
/**
* @brief Retrieves the periodicity in milliseconds for the given TDD pattern
* depending on the presence of the extension
* @param pattern Pointer to the NR_TDD_UL_DL_Pattern_t pattern structure
* @return Periodicity value in milliseconds.
*/
static float get_tdd_periodicity(NR_TDD_UL_DL_Pattern_t *pattern) {
if (!pattern->ext1) {
LOG_D(NR_MAC, "Setting TDD configuration period to dl_UL_TransmissionPeriodicity %ld\n", pattern->dl_UL_TransmissionPeriodicity);
return tdd_ms_period_pattern[pattern->dl_UL_TransmissionPeriodicity];
} else {
DevAssert(pattern->ext1->dl_UL_TransmissionPeriodicity_v1530 != NULL);
LOG_D(NR_MAC,
"Setting TDD configuration period to dl_UL_TransmissionPeriodicity_v1530 %ld\n",
*pattern->ext1->dl_UL_TransmissionPeriodicity_v1530);
return tdd_ms_period_ext[*pattern->ext1->dl_UL_TransmissionPeriodicity_v1530];
}
}
/**
* @brief Determines the TDD period index based on pattern periodicities
* @note Not applicabile to pattern extension
* @param tdd Pointer to the NR_TDD_UL_DL_ConfigCommon_t containing patterns
* @return Index of the TDD period in tdd_ms_period_pattern
*/
int get_tdd_period_idx(NR_TDD_UL_DL_ConfigCommon_t *tdd)
{
int tdd_period_idx = 0;
float pattern1_ms = get_tdd_periodicity(&tdd->pattern1);
float pattern2_ms = tdd->pattern2 ? get_tdd_periodicity(tdd->pattern2) : 0.0;
bool found_match = false;
// Find matching TDD period in the predefined list of periodicities
for (int i = 0; i < NFAPI_MAX_NUM_PERIODS; i++) {
if ((pattern1_ms + pattern2_ms) == tdd_ms_period_pattern[i]) {
tdd_period_idx = i;
LOG_I(NR_MAC,
"TDD period index = %d, based on the sum of dl_UL_TransmissionPeriodicity "
"from Pattern1 (%f ms) and Pattern2 (%f ms): Total = %f ms\n",
tdd_period_idx,
pattern1_ms,
pattern2_ms,
pattern1_ms + pattern2_ms);
found_match = true;
break;
}
}
// Assert if no match was found
AssertFatal(found_match, "The sum of pattern1_ms and pattern2_ms does not match any value in tdd_ms_period_pattern");
return tdd_period_idx;
}
static struct NR_PUSCH_TimeDomainResourceAllocation *set_TimeDomainResourceAllocation(const int k2, uint8_t index, int ul_symb)
{
openair2/RRC/NR/nr_rrc_config.h
+1
View File
@@ -112,5 +112,6 @@ NR_CellGroupConfig_t *get_default_secondaryCellGroup(const NR_ServingCellConfigC
int uid);
NR_ReconfigurationWithSync_t *get_reconfiguration_with_sync(rnti_t rnti, uid_t uid, const NR_ServingCellConfigCommon_t *scc);
int get_tdd_period_idx(NR_TDD_UL_DL_ConfigCommon_t *tdd);
#endif