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

Fix phy-simulators

Browse Source
This commit is contained in:
rmagueta
2021-09-15 18:40:35 +01:00
parent ec1834c5aa
commit d680dcd18a
4 changed files with 93 additions and 46 deletions
Download Patch File Download Diff File Expand all files Collapse all files
openair1/SIMULATION/LTE_PHY/dlsim.c
+5 -5
View File
@@ -182,7 +182,7 @@ void DL_channel(RU_t *ru,PHY_VARS_UE *UE,uint subframe,int awgn_flag,double SNR,
if (UE->perfect_ce==1) {
// fill in perfect channel estimates
freq_channel(eNB2UE[round],UE->frame_parms.N_RB_DL,12*UE->frame_parms.N_RB_DL + 1);
freq_channel(eNB2UE[round],UE->frame_parms.N_RB_DL,12*UE->frame_parms.N_RB_DL + 1, 15);
/*
LOG_M("channel.m","ch",eNB2UE[round]->ch[0],eNB2UE[round]->channel_length,1,8);
LOG_M("channelF.m","chF",eNB2UE[round]->chF[0],12*UE->frame_parms.N_RB_DL + 1,1,8);
@@ -193,7 +193,7 @@ void DL_channel(RU_t *ru,PHY_VARS_UE *UE,uint subframe,int awgn_flag,double SNR,
if(abstx) {
if (trials==0 && round==0) {
// calculate freq domain representation to compute SINR
freq_channel(eNB2UE[0], ru->frame_parms->N_RB_DL,2*ru->frame_parms->N_RB_DL + 1);
freq_channel(eNB2UE[0], ru->frame_parms->N_RB_DL,2*ru->frame_parms->N_RB_DL + 1, 15);
// snr=pow(10.0,.1*SNR);
fprintf(csv_fd,"%f,",SNR);
@@ -208,7 +208,7 @@ void DL_channel(RU_t *ru,PHY_VARS_UE *UE,uint subframe,int awgn_flag,double SNR,
}
if(num_rounds>1) {
freq_channel(eNB2UE[1], ru->frame_parms->N_RB_DL,2*ru->frame_parms->N_RB_DL + 1);
freq_channel(eNB2UE[1], ru->frame_parms->N_RB_DL,2*ru->frame_parms->N_RB_DL + 1, 15);
for (u=0; u<2*ru->frame_parms->N_RB_DL; u++) {
for (aarx=0; aarx<eNB2UE[1]->nb_rx; aarx++) {
@@ -220,7 +220,7 @@ void DL_channel(RU_t *ru,PHY_VARS_UE *UE,uint subframe,int awgn_flag,double SNR,
}
}
freq_channel(eNB2UE[2], ru->frame_parms->N_RB_DL,2*ru->frame_parms->N_RB_DL + 1);
freq_channel(eNB2UE[2], ru->frame_parms->N_RB_DL,2*ru->frame_parms->N_RB_DL + 1, 15);
for (u=0; u<2*ru->frame_parms->N_RB_DL; u++) {
for (aarx=0; aarx<eNB2UE[2]->nb_rx; aarx++) {
@@ -232,7 +232,7 @@ void DL_channel(RU_t *ru,PHY_VARS_UE *UE,uint subframe,int awgn_flag,double SNR,
}
}
freq_channel(eNB2UE[3], ru->frame_parms->N_RB_DL,2*ru->frame_parms->N_RB_DL + 1);
freq_channel(eNB2UE[3], ru->frame_parms->N_RB_DL,2*ru->frame_parms->N_RB_DL + 1, 15);
for (u=0; u<2*ru->frame_parms->N_RB_DL; u++) {
for (aarx=0; aarx<eNB2UE[3]->nb_rx; aarx++) {
openair1/SIMULATION/LTE_PHY/mbmssim.c
+5 -5
View File
@@ -181,7 +181,7 @@ void DL_channel(RU_t *ru,PHY_VARS_UE *UE,uint subframe,int awgn_flag,double SNR,
if (UE->perfect_ce==1) {
// fill in perfect channel estimates
freq_channel(eNB2UE[round],UE->frame_parms.N_RB_DL,12*UE->frame_parms.N_RB_DL + 1);
freq_channel(eNB2UE[round],UE->frame_parms.N_RB_DL,12*UE->frame_parms.N_RB_DL + 1, 15);
/*
LOG_M("channel.m","ch",eNB2UE[round]->ch[0],eNB2UE[round]->channel_length,1,8);
LOG_M("channelF.m","chF",eNB2UE[round]->chF[0],12*UE->frame_parms.N_RB_DL + 1,1,8);
@@ -192,7 +192,7 @@ void DL_channel(RU_t *ru,PHY_VARS_UE *UE,uint subframe,int awgn_flag,double SNR,
if(abstx) {
if (trials==0 && round==0) {
// calculate freq domain representation to compute SINR
freq_channel(eNB2UE[0], ru->frame_parms.N_RB_DL,2*ru->frame_parms.N_RB_DL + 1);
freq_channel(eNB2UE[0], ru->frame_parms.N_RB_DL,2*ru->frame_parms.N_RB_DL + 1, 15);
// snr=pow(10.0,.1*SNR);
fprintf(csv_fd,"%f,",SNR);
@@ -207,7 +207,7 @@ void DL_channel(RU_t *ru,PHY_VARS_UE *UE,uint subframe,int awgn_flag,double SNR,
}
if(num_rounds>1) {
freq_channel(eNB2UE[1], ru->frame_parms.N_RB_DL,2*ru->frame_parms.N_RB_DL + 1);
freq_channel(eNB2UE[1], ru->frame_parms.N_RB_DL,2*ru->frame_parms.N_RB_DL + 1, 15);
for (u=0; u<2*ru->frame_parms.N_RB_DL; u++) {
for (aarx=0; aarx<eNB2UE[1]->nb_rx; aarx++) {
@@ -219,7 +219,7 @@ void DL_channel(RU_t *ru,PHY_VARS_UE *UE,uint subframe,int awgn_flag,double SNR,
}
}
freq_channel(eNB2UE[2], ru->frame_parms.N_RB_DL,2*ru->frame_parms.N_RB_DL + 1);
freq_channel(eNB2UE[2], ru->frame_parms.N_RB_DL,2*ru->frame_parms.N_RB_DL + 1, 15);
for (u=0; u<2*ru->frame_parms.N_RB_DL; u++) {
for (aarx=0; aarx<eNB2UE[2]->nb_rx; aarx++) {
@@ -231,7 +231,7 @@ void DL_channel(RU_t *ru,PHY_VARS_UE *UE,uint subframe,int awgn_flag,double SNR,
}
}
freq_channel(eNB2UE[3], ru->frame_parms.N_RB_DL,2*ru->frame_parms.N_RB_DL + 1);
freq_channel(eNB2UE[3], ru->frame_parms.N_RB_DL,2*ru->frame_parms.N_RB_DL + 1, 15);
for (u=0; u<2*ru->frame_parms.N_RB_DL; u++) {
for (aarx=0; aarx<eNB2UE[3]->nb_rx; aarx++) {
openair1/SIMULATION/LTE_PHY/ulsim.c
+1 -1
View File
@@ -1102,7 +1102,7 @@ int main(int argc, char **argv) {
if(saving_bler==0)
if (trials==0 && round==0) {
// calculate freq domain representation to compute SINR
freq_channel(UE2eNB, N_RB_DL,12*N_RB_DL + 1);
freq_channel(UE2eNB, N_RB_DL,12*N_RB_DL + 1, 15);
// snr=pow(10.0,.1*SNR);
fprintf(csv_fdUL,"%f,%u,%u,%f,%f,%f,",SNR,tx_lev,tx_lev_dB,sigma2_dB,tx_gain,SNR2);
openair1/SIMULATION/NR_PHY/pucchsim.c
+82 -35
View File
@@ -455,23 +455,6 @@ int main(int argc, char **argv)
bzero(rxdataF[aarx],14*frame_parms->ofdm_symbol_size*sizeof(int));
}
//configure UE
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->pucch_config_common_nr->hoppingId = Nid_cell;
//phy_init_nr_top(UE); //called from init_nr_ue_signal
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);
}
uint8_t mcs=0;
int shift = 0;
if(format==0){
@@ -486,7 +469,75 @@ int main(int argc, char **argv)
else AssertFatal(1==0,"Either nr_bit %d or sr_flag %d must be non-zero\n", nr_bit, sr_flag);
}
else if (format == 2 && nr_bit > 11) gNB->uci_polarParams = nr_polar_params(2, nr_bit, nrofPRB, 1, NULL);
startingPRB_intraSlotHopping = N_RB_DL-1;
uint32_t hopping_id = Nid_cell;
uint32_t dmrs_scrambling_id = 0;
uint32_t data_scrambling_id = 0;
//configure UE
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)
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);
}
fapi_nr_ul_config_pucch_pdu pucch_tx_pdu;
if (format==0) {
pucch_tx_pdu.format_type = 0;
pucch_tx_pdu.nr_of_symbols = nrofSymbols;
pucch_tx_pdu.start_symbol_index = startingSymbolIndex;
pucch_tx_pdu.bwp_start = 0;
pucch_tx_pdu.prb_start = startingPRB;
pucch_tx_pdu.hopping_id = hopping_id;
pucch_tx_pdu.group_hop_flag = 0;
pucch_tx_pdu.sequence_hop_flag = 0;
pucch_tx_pdu.freq_hop_flag = 0;
pucch_tx_pdu.mcs = mcs;
pucch_tx_pdu.initial_cyclic_shift = 0;
pucch_tx_pdu.second_hop_prb = startingPRB_intraSlotHopping;
}
if (format==2) {
pucch_tx_pdu.format_type = 2;
pucch_tx_pdu.rnti = 0x1234;
pucch_tx_pdu.n_bit = nr_bit;
pucch_tx_pdu.payload = actual_payload;
pucch_tx_pdu.nr_of_symbols = nrofSymbols;
pucch_tx_pdu.start_symbol_index = startingSymbolIndex;
pucch_tx_pdu.bwp_start = 0;
pucch_tx_pdu.prb_start = startingPRB;
pucch_tx_pdu.prb_size = nrofPRB;
pucch_tx_pdu.hopping_id = hopping_id;
pucch_tx_pdu.group_hop_flag = 0;
pucch_tx_pdu.sequence_hop_flag = 0;
pucch_tx_pdu.freq_hop_flag = 0;
pucch_tx_pdu.dmrs_scrambling_id = dmrs_scrambling_id;
pucch_tx_pdu.data_scrambling_id = data_scrambling_id;
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){
ack_nack_errors=0;
sr_errors=0;
@@ -495,14 +546,11 @@ int main(int argc, char **argv)
for (int aatx=0;aatx<1;aatx++)
bzero(txdataF[aatx],frame_parms->ofdm_symbol_size*sizeof(int));
if(format==0 && do_DTX==0){
nr_generate_pucch0(UE,txdataF,frame_parms,PUCCH_GroupHopping,hopping_id,amp,nr_slot_tx,m0,mcs,nrofSymbols,startingSymbolIndex,startingPRB,
nrofSymbols>1?(N_RB_DL-1):0);
}
else if (format == 1 && do_DTX==0){
nr_generate_pucch1(UE,txdataF,frame_parms,UE->pucch_config_dedicated,actual_payload,amp,nr_slot_tx,m0,nrofSymbols,startingSymbolIndex,startingPRB,startingPRB_intraSlotHopping,0,nr_bit);
}
else if (do_DTX == 0){
nr_generate_pucch2(UE,0x1234,dmrs_scrambling_id,data_scrambling_id,txdataF,frame_parms,UE->pucch_config_dedicated,actual_payload,amp,nr_slot_tx,nrofSymbols,startingSymbolIndex,nrofPRB,startingPRB,nr_bit);
nr_generate_pucch0(UE, txdataF, frame_parms, amp, nr_slot_tx, &pucch_tx_pdu);
} else if (format == 1 && do_DTX==0){
nr_generate_pucch1(UE, txdataF, frame_parms, amp, nr_slot_tx, &pucch_tx_pdu);
} else if (do_DTX == 0){
nr_generate_pucch2(UE, txdataF, frame_parms, amp, nr_slot_tx, &pucch_tx_pdu);
}
// SNR Computation
@@ -542,8 +590,8 @@ int main(int argc, char **argv)
for (int aarx=0;aarx<n_rx;aarx++) {
txr = (double)(((int16_t *)txdataF[0])[(i<<1)]);
txi = (double)(((int16_t *)txdataF[0])[1+(i<<1)]);
rxr = txr*UE2gNB->chF[aarx][re].x - txi*UE2gNB->chF[aarx][re].y;
rxi = txr*UE2gNB->chF[aarx][re].y + txi*UE2gNB->chF[aarx][re].x;
rxr = txr*UE2gNB->chF[aarx][re].r - txi*UE2gNB->chF[aarx][re].i;
rxi = txr*UE2gNB->chF[aarx][re].i + txi*UE2gNB->chF[aarx][re].r;
nr = sqrt(sigma2/2)*gaussdouble(0.0,1.0);
ni = sqrt(sigma2/2)*gaussdouble(0.0,1.0);
((int16_t*)rxdataF[aarx])[i<<1] = (int16_t)(100.0*(rxr + nr)/sqrt((double)txlev));
@@ -551,10 +599,9 @@ int main(int argc, char **argv)
if (n_trials==1 && abs(txr) > 0) printf("symb %d, re %d , aarx %d : txr %f, txi %f, chr %f, chi %f, nr %f, ni %f, rxr %f, rxi %f => %d,%d\n",
symb, re, aarx, txr,txi,
UE2gNB->chF[aarx][re].x,UE2gNB->chF[aarx][re].y,
UE2gNB->chF[aarx][re].r,UE2gNB->chF[aarx][re].i,
nr,ni, rxr,rxi,
((int16_t*)rxdataF[aarx])[i<<1],((int16_t*)rxdataF[aarx])[1+(i<<1)]);
}
}
}
@@ -577,8 +624,8 @@ int main(int argc, char **argv)
if(format==0){
nfapi_nr_uci_pucch_pdu_format_0_1_t uci_pdu;
nfapi_nr_pucch_pdu_t pucch_pdu;
gNB->uci_stats[0].rnti = 0x1234;
pucch_pdu.rnti = 0x1234;
gNB->uci_stats[0].rnti = 0x1234;
pucch_pdu.rnti = 0x1234;
pucch_pdu.subcarrier_spacing = 1;
pucch_pdu.group_hop_flag = PUCCH_GroupHopping&1;
pucch_pdu.sequence_hop_flag = (PUCCH_GroupHopping>>1)&1;
@@ -609,9 +656,9 @@ int main(int argc, char **argv)
ack_nack_errors+=(actual_payload^uci_pdu.harq->harq_list[0].harq_value);
else if (do_DTX == 0)
ack_nack_errors+=(((actual_payload&1)^uci_pdu.harq->harq_list[0].harq_value)+((actual_payload>>1)^uci_pdu.harq->harq_list[1].harq_value));
else if ((uci_pdu.harq->harq_confidence_level == 0 && uci_pdu.harq->harq_list[0].harq_value == 1) ||
(uci_pdu.harq->harq_confidence_level == 0 && nr_bit == 2 && uci_pdu.harq->harq_list[1].harq_value==1))
ack_nack_errors++;
else if ((uci_pdu.harq->harq_confidence_level == 0 && uci_pdu.harq->harq_list[0].harq_value == 1) ||
(uci_pdu.harq->harq_confidence_level == 0 && nr_bit == 2 && uci_pdu.harq->harq_list[1].harq_value==1))
ack_nack_errors++;
free(uci_pdu.harq->harq_list);
}
}