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NR UE: when compensating for large timing_advance changes, set writeBlockSize to 0 instead of 1

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This commit is contained in:
Thomas Schlichter
2026-02-20 09:59:54 +01:00
parent ba0ead6809
commit f7265977ad
1 changed files with 7 additions and 4 deletions
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executables/nr-ue.c
+7 -4
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@@ -294,6 +294,10 @@ static int nr_ue_slot_select(const fapi_nr_config_request_t *cfg, int nr_slot)
static void RU_write(nr_rxtx_thread_data_t *rxtxD, bool sl_tx_action, c16_t **txp) static void RU_write(nr_rxtx_thread_data_t *rxtxD, bool sl_tx_action, c16_t **txp)
{ {
int writeBlockSize = rxtxD->writeBlockSize;
if (writeBlockSize == 0)
return;
PHY_VARS_NR_UE *UE = rxtxD->UE; PHY_VARS_NR_UE *UE = rxtxD->UE;
const fapi_nr_config_request_t *cfg = &UE->nrUE_config; const fapi_nr_config_request_t *cfg = &UE->nrUE_config;
const UE_nr_rxtx_proc_t *proc = &rxtxD->proc; const UE_nr_rxtx_proc_t *proc = &rxtxD->proc;
@@ -353,7 +357,6 @@ static void RU_write(nr_rxtx_thread_data_t *rxtxD, bool sl_tx_action, c16_t **tx
} }
openair0_timestamp_t writeTimestamp = proc->timestamp_tx; openair0_timestamp_t writeTimestamp = proc->timestamp_tx;
int writeBlockSize = rxtxD->writeBlockSize;
// if writeBlockSize gets longer that slot size, fill with dummy // if writeBlockSize gets longer that slot size, fill with dummy
const int maxWriteBlockSize = get_samples_per_slot(proc->nr_slot_tx, fp); const int maxWriteBlockSize = get_samples_per_slot(proc->nr_slot_tx, fp);
while (writeBlockSize > maxWriteBlockSize) { while (writeBlockSize > maxWriteBlockSize) {
@@ -1010,9 +1013,9 @@ void *UE_thread(void *arg)
UE->N_TA_offset = new_N_TA_offset; UE->N_TA_offset = new_N_TA_offset;
} }
if (writeBlockSize < 0) { if (writeBlockSize < 0) {
timing_advance += writeBlockSize - 1; timing_advance += writeBlockSize;
LOG_I(PHY, "writeBlockSize is %d, setting it to 1 and changing timing_advance to %d\n", writeBlockSize, timing_advance); LOG_I(PHY, "writeBlockSize is %d, setting it to 0 and changing timing_advance to %d\n", writeBlockSize, timing_advance);
writeBlockSize = 1; writeBlockSize = 0;
} }
if (curMsg.proc.nr_slot_rx == 0) if (curMsg.proc.nr_slot_rx == 0)