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PSBCH RX TX and SLSS search procedures

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- RX/TX Phy processing accg to 38.211, 38.212 Rel16
	- PSBCH simulator used to validate TX/RX phy processing
	- PSBCH SLSS Search procedures
	- PSBCH SIM also tests SLSS SEARCH
This commit is contained in:
Raghavendra Dinavahi
2024-04-12 16:07:00 +02:00
committed by Robert Schmidt
parent 1244c9a278
commit 94b23d1eb0
35 changed files with 3069 additions and 113 deletions
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openair1/SIMULATION/NR_PHY/pbchsim.c
+23 -21
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@@ -786,36 +786,38 @@ int main(int argc, char **argv)
int ssb_slot = (UE->symbol_offset/14)+(n_hf*(frame_parms->slots_per_frame>>1));
proc.nr_slot_rx = ssb_slot;
proc.gNB_id = 0;
for (int i=UE->symbol_offset+1; i<UE->symbol_offset+4; i++) {
for (int i=UE->symbol_offset+1; i<UE->symbol_offset+4; i++) {
nr_slot_fep(UE,
frame_parms,
&proc,
i%frame_parms->symbols_per_slot,
rxdataF);
rxdataF, link_type_dl);
nr_pbch_channel_estimation(UE,estimateSz, dl_ch_estimates, dl_ch_estimates_time, &proc,
i%frame_parms->symbols_per_slot,i-(UE->symbol_offset+1),ssb_index%8,n_hf,rxdataF);
nr_pbch_channel_estimation(UE,&UE->frame_parms, estimateSz, dl_ch_estimates, dl_ch_estimates_time, &proc,
i%frame_parms->symbols_per_slot,i-(UE->symbol_offset+1),
ssb_index%8,n_hf,rxdataF,false,frame_parms->Nid_cell);
}
fapiPbch_t result;
fapiPbch_t result;
ret = nr_rx_pbch(UE, &proc, estimateSz, dl_ch_estimates, frame_parms, ssb_index % 8, &result, rxdataF);
if (ret==0) {
//UE->rx_ind.rx_indication_body->mib_pdu.ssb_index; //not yet detected automatically
//UE->rx_ind.rx_indication_body->mib_pdu.ssb_length; //Lmax, not yet detected automatically
uint8_t gNB_xtra_byte=0;
for (int i=0; i<8; i++)
gNB_xtra_byte |= ((gNB->pbch.pbch_a>>(31-i))&1)<<(7-i);
payload_ret = (result.xtra_byte == gNB_xtra_byte);
for (i=0;i<3;i++){
payload_ret += (result.decoded_output[i] == ((msgDataTx.ssb[ssb_index].ssb_pdu.ssb_pdu_rel15.bchPayload>>(8*i)) & 0xff));
}
//printf("ret %d\n", payload_ret);
if (payload_ret!=4)
n_errors_payload++;
}
if (ret==0) {
//UE->rx_ind.rx_indication_body->mib_pdu.ssb_index; //not yet detected automatically
//UE->rx_ind.rx_indication_body->mib_pdu.ssb_length; //Lmax, not yet detected automatically
uint8_t gNB_xtra_byte=0;
for (int i=0; i<8; i++)
gNB_xtra_byte |= ((gNB->pbch.pbch_a>>(31-i))&1)<<(7-i);
payload_ret = (result.xtra_byte == gNB_xtra_byte);
for (i=0;i<3;i++){
payload_ret += (result.decoded_output[i] == ((msgDataTx.ssb[ssb_index].ssb_pdu.ssb_pdu_rel15.bchPayload>>(8*i)) & 0xff));
}
//printf("ret %d\n", payload_ret);
if (payload_ret!=4)
n_errors_payload++;
}
if (ret!=0) n_errors++;
if (ret!=0) n_errors++;
}
} //noise trials
printf("SNR %f: trials %d, n_errors_crc = %d, n_errors_payload %d\n", SNR,n_trials,n_errors,n_errors_payload);