mirror of https://github.com/PentHertz/srsLTE.git
In-sync and out-of-sync after 100 and 200 ms. Use RSRP -124 dBm as per the specs instead of SNR
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07cd9ae528
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@ -291,6 +291,13 @@ private:
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// Sync metrics
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sync_metrics_t metrics;
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// in-sync / out-of-sync counters
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uint32_t out_of_sync_cnt;
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uint32_t in_sync_cnt;
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const static uint32_t NOF_OUT_OF_SYNC_SF = 200;
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const static uint32_t NOF_IN_SYNC_SF = 100;
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// State for primary cell
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enum {
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IDLE = 0,
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@ -124,6 +124,8 @@ void phch_recv::stop()
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void phch_recv::reset()
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{
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in_sync_cnt = 0;
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out_of_sync_cnt = 0;
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tx_mutex_cnt = 0;
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phy_state = IDLE;
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time_adv_sec = 0;
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@ -713,6 +715,7 @@ void phch_recv::run_thread()
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intra_freq_meas.write(tti, buffer[0], SRSLTE_SF_LEN_PRB(cell.nof_prb));
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break;
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case 0:
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Warning("SYNC: Out-of-sync detected in PSS/SSS\n");
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out_of_sync();
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worker->release();
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worker_com->reset_ul();
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@ -742,11 +745,24 @@ void phch_recv::run_thread()
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}
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void phch_recv::in_sync() {
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rrc->in_sync();
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out_of_sync_cnt = 0;
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in_sync_cnt++;
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// Send RRC in-sync signal after 100 ms consecutive subframes
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if (in_sync_cnt == NOF_IN_SYNC_SF) {
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rrc->in_sync();
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in_sync_cnt = 0;
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}
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}
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// Out of sync called by worker or phch_recv every 1 or 5 ms
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void phch_recv::out_of_sync() {
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rrc->out_of_sync();
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in_sync_cnt = 0;
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// Send RRC out-of-sync signal after 200 ms consecutive subframes
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out_of_sync_cnt++;
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if (out_of_sync_cnt >= NOF_OUT_OF_SYNC_SF) {
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rrc->out_of_sync();
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out_of_sync_cnt = 0;
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}
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}
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@ -241,15 +241,12 @@ void phch_worker::work_imp()
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/* Do FFT and extract PDCCH LLR, or quit if no actions are required in this subframe */
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bool chest_ok = extract_fft_and_pdcch_llr();
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bool snr_th_err = 10*log10(srslte_chest_dl_get_snr(&ue_dl.chest))<-20.0;
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bool snr_th_ok = 10*log10(srslte_chest_dl_get_snr(&ue_dl.chest))>-15.0;
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// Call feedback loop for chest
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if (chest_loop && ((1<<(tti%10)) & phy->args->cfo_ref_mask)) {
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chest_loop->set_cfo(srslte_chest_dl_get_cfo(&ue_dl.chest));
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}
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if (chest_ok && !snr_th_err) {
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if (chest_ok) {
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/***** Downlink Processing *******/
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@ -370,12 +367,13 @@ void phch_worker::work_imp()
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update_measurements();
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if (chest_ok) {
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if (snr_th_ok) {
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log_h->debug("SNR=%.1f dB sync=in-sync from channel estimator\n", 10*log10(srslte_chest_dl_get_snr(&ue_dl.chest)));
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if (phy->avg_rsrp_dbm > -124.0) {
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log_h->debug("SNR=%.1f dB, RSRP=%.1f dBm sync=in-sync from channel estimator\n",
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10*log10(srslte_chest_dl_get_snr(&ue_dl.chest)), phy->avg_rsrp_dbm);
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chest_loop->in_sync();
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} else if (snr_th_err) {
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log_h->info("SNR=%.1f dB sync=out-of-sync from channel estimator\n",
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10*log10(srslte_chest_dl_get_snr(&ue_dl.chest)));
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} else {
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log_h->warning("SNR=%.1f dB RSRP=%.1f dBm, sync=out-of-sync from channel estimator\n",
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10*log10(srslte_chest_dl_get_snr(&ue_dl.chest)), phy->avg_rsrp_dbm);
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chest_loop->out_of_sync();
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}
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}
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