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Revert simulation parameters of pucchsim

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This commit is contained in:
rmagueta
2021-09-16 18:50:47 +01:00
parent a52658174b
commit 115063161f
1 changed files with 10 additions and 21 deletions
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openair1/SIMULATION/NR_PHY/pucchsim.c
+10 -21
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@@ -101,8 +101,9 @@ int main(int argc, char **argv)
uint16_t startingPRB=0,startingPRB_intraSlotHopping=0; //PRB number not sure see 9.2.1, 38.213 for more info. Should be actually present in the resource set provided
uint16_t nrofPRB=2;
uint8_t timeDomainOCC=0;
SCM_t channel_model=TDL_C;
double DS_TDL = .3;
SCM_t channel_model=AWGN;//Rayleigh1_anticorr;
double DS_TDL = .03;
int N_RB_DL=273,mu=1;
float target_error_rate=0.001;
@@ -112,7 +113,7 @@ int main(int argc, char **argv)
//unsigned char frame_type = 0;
int loglvl=OAILOG_WARNING;
int sr_flag = 0;
int pucch_DTX_thres = 155;
int pucch_DTX_thres = 0;
cpuf = get_cpu_freq_GHz();
if ( load_configmodule(argc,argv,CONFIG_ENABLECMDLINEONLY) == 0) {
@@ -381,7 +382,7 @@ int main(int argc, char **argv)
cfg->carrier_config.num_tx_ant.value = n_tx;
cfg->carrier_config.num_rx_ant.value = n_rx;
nr_phy_config_request_sim(gNB,N_RB_DL,N_RB_DL,mu,Nid_cell,SSB_positions);
phy_init_nr_gNB(gNB,0,1);
phy_init_nr_gNB(gNB,0,0);
double fs,bw,scs,eps;
@@ -479,7 +480,6 @@ int main(int argc, char **argv)
UE = calloc(1,sizeof(PHY_VARS_NR_UE));
memcpy(&UE->frame_parms,frame_parms,sizeof(NR_DL_FRAME_PARMS));
UE->frame_parms.nb_antennas_rx = 2;
UE->perfect_ce = 0;
if(eps!=0.0)
@@ -525,20 +525,9 @@ int main(int argc, char **argv)
pucch_tx_pdu.second_hop_prb = startingPRB_intraSlotHopping;
}
UE->perfect_ce = 0;
if(eps!=0.0)
UE->UE_fo_compensation = 1; // if a frequency offset is set then perform fo estimation and compensation
if (init_nr_ue_signal(UE, 1, 0) != 0)
{
printf("Error at UE NR initialisation\n");
exit(-1);
}
pucch_GroupHopping_t PUCCH_GroupHopping = pucch_tx_pdu.group_hop_flag + (pucch_tx_pdu.sequence_hop_flag<<1);
for(SNR=snr0;SNR<=snr1;SNR=SNR+0.5){
for(SNR=snr0;SNR<=snr1;SNR+=1){
ack_nack_errors=0;
sr_errors=0;
n_errors = 0;
@@ -552,14 +541,14 @@ int main(int argc, char **argv)
} else if (do_DTX == 0){
nr_generate_pucch2(UE, txdataF, frame_parms, amp, nr_slot_tx, &pucch_tx_pdu);
}
// SNR Computation
// standard says: SNR = S / N, where S is the total signal energy, N is the noise energy in the transmission bandwidth (i.e. N_RB_DL resource blocks)
// txlev = S. Note: signal_energy_nodc normalizes by the length of the vector, so multiply output by ofdm_symbol_size
double txlev = do_DTX == 0 ? signal_energy_nodc(&txdataF[0][startingSymbolIndex*frame_parms->ofdm_symbol_size],
frame_parms->ofdm_symbol_size) * (double)frame_parms->ofdm_symbol_size
: 1e5;
int N_RB = (format == 0) ? 1 : nrofPRB;
int N_RB = (format == 0 || format == 1) ? 1 : nrofPRB;
// sigma2 is variance per dimension, so N/(N_RB*12)
// so, sigma2 = N/(N_RB_DL*12) => (S/SNR)/(N_RB*12)
sigma2_dB = 10*log10(txlev/(12.0*N_RB))-SNR;
@@ -640,7 +629,7 @@ int main(int argc, char **argv)
pucch_pdu.prb_start = startingPRB;
pucch_pdu.bwp_start = 0;
pucch_pdu.bwp_size = N_RB_DL;
if (nrofSymbols>1) {
if (nrofSymbols>1) {
pucch_pdu.freq_hop_flag = 1;
pucch_pdu.second_hop_prb = N_RB_DL-1;
}
@@ -691,7 +680,7 @@ int main(int argc, char **argv)
pucch_pdu.prb_start = startingPRB;
pucch_pdu.dmrs_scrambling_id = dmrs_scrambling_id;
pucch_pdu.data_scrambling_id = data_scrambling_id;
if (nrofSymbols>1) {
if (nrofSymbols>1) {
pucch_pdu.freq_hop_flag = 1;
pucch_pdu.second_hop_prb = N_RB_DL-1;
}