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fixed signal level computation for PUCCH2 and threshold in pucchsim.

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Threshold allows detection with -9 dB SNR with 8 RX antennas
This commit is contained in:
Raymond Knopp
2024-10-18 15:43:08 +02:00
parent af53f35824
commit 03b24c1ee6
3 changed files with 6 additions and 6 deletions
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openair1/PHY/NR_ESTIMATION/nr_measurements_gNB.c
+2 -2
View File
@@ -154,7 +154,7 @@ void gNB_I0_measurements(PHY_VARS_gNB *gNB, int slot, int first_symb, int num_sy
signal_energy = signal_energy_nodc(ul_ch, 12);
}
n0_subband_power[aarx][rb] += signal_energy;
LOG_D(PHY,"slot %d symbol %d RB %d aarx %d n0_subband_power %d\n", slot, s, rb, aarx, signal_energy);
LOG_D(NR_PHY,"slot %d symbol %d RB %d aarx %d n0_subband_power %d\n", slot, s, rb, aarx, signal_energy);
} //antenna
}
} //rb
@@ -177,7 +177,7 @@ void gNB_I0_measurements(PHY_VARS_gNB *gNB, int slot, int first_symb, int num_sy
n0_subband_tot_perPRB/=frame_parms->nb_antennas_rx;
measurements->n0_subband_power_tot_dB[rb] = dB_fixed(n0_subband_tot_perPRB);
measurements->n0_subband_power_tot_dBm[rb] = measurements->n0_subband_power_tot_dB[rb] - gNB->rx_total_gain_dB - dB_fixed(frame_parms->N_RB_UL);
LOG_D(PHY,"n0_subband_power_tot_dB[%d] => %d, over %d symbols\n",rb,measurements->n0_subband_power_tot_dB[rb],nb_symb[rb]);
LOG_D(NR_PHY,"n0_subband_power_tot_dB[%d] => %d, over %d symbols\n",rb,measurements->n0_subband_power_tot_dB[rb],nb_symb[rb]);
n0_subband_tot += n0_subband_tot_perPRB;
nb_rb++;
}
openair1/PHY/NR_TRANSPORT/pucch_rx.c
+3 -3
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@@ -1088,7 +1088,7 @@ void nr_decode_pucch2(PHY_VARS_gNB *gNB,
}
}
pucch2_lev /= Prx * Prx * pucch_pdu->nr_of_symbols;
pucch2_lev /= Prx * pucch_pdu->nr_of_symbols;
int pucch2_levdB = dB_fixed(pucch2_lev);
int scaling = 0;
if (pucch2_levdB > 72)
@@ -1100,7 +1100,7 @@ void nr_decode_pucch2(PHY_VARS_gNB *gNB,
else if (pucch2_levdB > 54)
scaling = 1;
LOG_D(PHY,
LOG_D(NR_PHY,
"%d.%d Decoding pucch2 for %d symbols, %d PRB, nb_harq %d, nb_sr %d, nb_csi %d/%d, pucch2_lev %d dB (scaling %d)\n",
frame,
slot,
@@ -1369,7 +1369,7 @@ void nr_decode_pucch2(PHY_VARS_gNB *gNB,
int decoderState = 2;
if (pucch2_levdB < gNB->measurements.n0_subband_power_avg_dB + (gNB->pucch0_thres / 10))
decoderState = 1; // assuming missed detection, only attempt to decode for polar case (with CRC)
LOG_D(PHY, "n0+thres %d decoderState %d\n", gNB->measurements.n0_subband_power_avg_dB + (gNB->pucch0_thres / 10), decoderState);
LOG_D(NR_PHY, "n0+thres %d decoderState %d\n", gNB->measurements.n0_subband_power_avg_dB + (gNB->pucch0_thres / 10), decoderState);
if (nb_bit < 12 && decoderState == 2) { // short blocklength case
simde__m256i *rp_re[Prx2][2];
simde__m256i *rp2_re[Prx2][2];
openair1/SIMULATION/NR_PHY/pucchsim.c
+1 -1
View File
@@ -145,7 +145,7 @@ int main(int argc, char **argv)
//unsigned char frame_type = 0;
int loglvl=OAILOG_WARNING;
int sr_flag = 0;
int pucch_DTX_thres = 50;
int pucch_DTX_thres = 0;
cpuf = get_cpu_freq_GHz();
if ((uniqCfg = load_configmodule(argc, argv, CONFIG_ENABLECMDLINEONLY)) == 0) {