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srsLTE
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SRSUE: fixed prach TA correction

This commit is contained in:
Xavier Arteaga 2019-09-24 11:46:21 +02:00 committed by Xavier Arteaga
parent 4b5353e87a
commit ef26bc7451
2 changed files with 13 additions and 12 deletions
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19
srsue/src/phy/sf_worker.cc
View File

@ -223,8 +223,12 @@ void sf_worker::work_imp()
/***** Uplink Generation + Transmission *******/
bool tx_signal_ready = false;
cf_t* tx_signal_ptr[SRSLTE_MAX_RADIOS][SRSLTE_MAX_PORTS] = {};
bool tx_signal_ready = false;
cf_t* tx_signal_ptr[SRSLTE_MAX_RADIOS][SRSLTE_MAX_PORTS] = {};
uint32_t nof_samples[SRSLTE_MAX_RADIOS] = {};
for (uint32_t i = 0; i < phy->args->nof_radios; i++) {
nof_samples[i] = SRSLTE_SF_LEN_PRB(cell.nof_prb);
}
/* If TTI+4 is an uplink subframe (TODO: Support short PRACH and SRS in UpPts special subframes) */
if ((srslte_sfidx_tdd_type(tdd_config, TTI_TX(tti) % 10) == SRSLTE_TDD_SF_U) || cell.frame_type == SRSLTE_FDD) {
@ -257,13 +261,14 @@ void sf_worker::work_imp()
if (prach_ptr) {
tx_signal_ready = true;
tx_signal_ptr[0][0] = prach_ptr;
prach_ptr = NULL;
prach_ptr = nullptr;
Info("PRACH! next_offset=%d;\n", next_offset[0]);
} else {
for (uint32_t i = 0; i < phy->args->nof_radios; i++) {
nof_samples[i] += next_offset[i];
}
}
uint32_t nof_samples[SRSLTE_MAX_RADIOS];
for (uint32_t i = 0; i < phy->args->nof_radios; i++) {
nof_samples[i] = SRSLTE_SF_LEN_PRB(cell.nof_prb) + next_offset[i];
}
// Call worker_end to transmit the signal
phy->worker_end(tx_sem_id, tx_signal_ready, tx_signal_ptr, nof_samples, tx_time);

6
srsue/src/phy/sync.cc
View File

@ -493,11 +493,7 @@ void sync::run_thread()
srslte_timestamp_t rx_time, tx_time;
srslte_ue_sync_get_last_timestamp(&ue_sync, &rx_time);
srslte_timestamp_copy(&tx_time, &rx_time);
if (prach_ptr) {
srslte_timestamp_add(&tx_time, 0, TX_DELAY * 1e-3);
} else {
srslte_timestamp_add(&tx_time, 0, TX_DELAY * 1e-3 - time_adv_sec);
}
srslte_timestamp_add(&tx_time, 0, TX_DELAY * 1e-3 - time_adv_sec);
worker->set_prach(prach_ptr?&prach_ptr[prach_sf_cnt*SRSLTE_SF_LEN_PRB(cell.nof_prb)]:NULL, prach_power);