maki/openairinterface5g
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

minor changes in SNR/noise computation for ulsch

Browse Source
This commit is contained in:
Raymond Knopp
2021-04-23 09:18:40 +02:00
parent dc2182cf50
commit 5f0e2e748d
1 changed files with 11 additions and 7 deletions
Download Patch File Download Diff File Expand all files Collapse all files
openair1/PHY/NR_TRANSPORT/nr_ulsch_demodulation.c
+11 -7
View File
@@ -1218,16 +1218,20 @@ int nr_rx_pusch(PHY_VARS_gNB *gNB,
rel15_ul); rel15_ul);
nr_gnb_measurements(gNB, ulsch_id, harq_pid, symbol); nr_gnb_measurements(gNB, ulsch_id, harq_pid, symbol);
int num_symb = rel15_ul->nr_of_symbols;
for (aarx = 0; aarx < frame_parms->nb_antennas_rx; aarx++) { for (aarx = 0; aarx < frame_parms->nb_antennas_rx; aarx++) {
gNB->pusch_vars[ulsch_id]->ulsch_power[aarx] = signal_energy_nodc(&gNB->pusch_vars[ulsch_id]->ul_ch_estimates[aarx][symbol*frame_parms->ofdm_symbol_size], if (symbol == rel15_ul->start_symbol_index) {
rel15_ul->rb_size*12); gNB->pusch_vars[ulsch_id]->ulsch_power[aarx]=0;
LOG_D(PHY,"ulsch_power[%d] symbol %d %f (%p)\n",aarx,symbol,dB_fixed_x10( gNB->pusch_vars[ulsch_id]->ulsch_power[aarx])/10.0, gNB->pusch_vars[ulsch_id]->ulsch_noise_power[aarx]=0;
&gNB->pusch_vars[ulsch_id]->ul_ch_estimates[aarx][symbol*frame_parms->ofdm_symbol_size]); }
gNB->pusch_vars[ulsch_id]->ulsch_power[aarx] += signal_energy_nodc(&gNB->pusch_vars[ulsch_id]->ul_ch_estimates[aarx][symbol*frame_parms->ofdm_symbol_size],
rel15_ul->rb_size*12)/num_symb;
if (gNB->pusch_vars[ulsch_id]->ulsch_power[aarx]==1) return (1); if (gNB->pusch_vars[ulsch_id]->ulsch_power[aarx]==1) return (1);
gNB->pusch_vars[ulsch_id]->ulsch_noise_power[aarx]=0; for (int rb=0;rb<rel15_ul->rb_size;rb++) {
for (int rb=0;rb<rel15_ul->rb_size;rb++) printf("aarx %d symbol %d, rb %d => %d\n",aarx,symbol,rb,dB_fixed(gNB->measurements.n0_subband_power[aarx][rel15_ul->bwp_start+rel15_ul->rb_start+rb]));
gNB->pusch_vars[ulsch_id]->ulsch_noise_power[aarx]+=gNB->measurements.n0_subband_power[aarx][rel15_ul->bwp_start+rel15_ul->rb_start+rb]/rel15_ul->rb_size; gNB->pusch_vars[ulsch_id]->ulsch_noise_power[aarx]+=gNB->measurements.n0_subband_power[aarx][rel15_ul->bwp_start+rel15_ul->rb_start+rb]/rel15_ul->rb_size/num_symb;
}
} }
} }
stop_meas(&gNB->ulsch_channel_estimation_stats); stop_meas(&gNB->ulsch_channel_estimation_stats);