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srsLTE
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Fix UE SYNC NR CFO feedback and periodicity

This commit is contained in:
Xavier Arteaga 2022-01-11 19:48:21 +01:00 committed by Xavier Arteaga
parent 8694cc63ec
commit c88774a3f4
1 changed files with 9 additions and 6 deletions
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15
lib/src/phy/ue/ue_sync_nr.c
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@ -167,8 +167,11 @@ static int ue_sync_nr_run_track(srsran_ue_sync_nr_t* q, cf_t* buffer)
// Check if the SSB selected candidate index shall be received in this subframe
bool is_ssb_opportunity = (q->sf_idx == srsran_ssb_candidate_sf_idx(&q->ssb, q->ssb_idx, half_frame > 0));
// TODO: it assumes SSB opportunity is every 10 ms, use real SSB SF candidate
is_ssb_opportunity = (q->sf_idx % SRSRAN_NOF_SF_X_FRAME == 0);
// Use SSB periodicity
if (q->ssb.cfg.periodicity_ms >= 10) {
// SFN match with the periodicity
is_ssb_opportunity = is_ssb_opportunity && (half_frame == 0) && (q->sfn % q->ssb.cfg.periodicity_ms / 10 == 0);
}
if (is_ssb_opportunity) {
// Measure PSS/SSS and decode PBCH
@ -185,10 +188,10 @@ static int ue_sync_nr_run_track(srsran_ue_sync_nr_t* q, cf_t* buffer)
// Otherwise feedback measurements and apply
srsran_combine_csi_trs_measurements(&q->feedback, &measurements, &q->feedback);
}
// Apply accumulated feedback
ue_sync_nr_apply_feedback(q);
// Apply accumulated feedback
ue_sync_nr_apply_feedback(q);
}
return SRSRAN_SUCCESS;
}
@ -240,7 +243,7 @@ static int ue_sync_nr_recv(srsran_ue_sync_nr_t* q, cf_t** buffer, srsran_timesta
// Compensate CFO
for (uint32_t chan = 0; chan < q->nof_rx_channels; chan++) {
if (buffer[chan] != 0 && !q->disable_cfo) {
srsran_vec_apply_cfo(buffer[chan], q->cfo_hz / q->srate_hz, buffer[chan], (int)q->sf_sz);
srsran_vec_apply_cfo(buffer[chan], -q->cfo_hz / q->srate_hz, buffer[chan], (int)q->sf_sz);
}
}