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pbchsim works for FR2

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This commit is contained in:
Sakthivel Velumani
2020-02-19 14:07:22 +01:00
parent d59d2fe2bd
commit a3f9a72092
2 changed files with 65 additions and 5 deletions
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openair1/SIMULATION/NR_PHY/dlsim.c
+4 -2
View File
@@ -733,9 +733,11 @@ int main(int argc, char **argv)
Sched_INFO.TX_req = &gNB_mac->TX_req[0];
nr_schedule_response(&Sched_INFO);
phy_procedures_gNB_TX(gNB,frame,slot,0);
if (run_initial_sync)
nr_common_signal_procedures(gNB,frame,slot);
else
phy_procedures_gNB_TX(gNB,frame,slot,0);
//nr_common_signal_procedures (gNB,frame,subframe);
int txdataF_offset = (slot%2) * frame_parms->samples_per_slot_wCP;
if (n_trials==1) {
openair1/SIMULATION/NR_PHY/pbchsim.c
+61 -3
View File
@@ -61,6 +61,50 @@ uint16_t NB_UE_INST = 1;
// needed for some functions
openair0_config_t openair0_cfg[MAX_CARDS];
void nr_phy_config_request_sim_pbchsim(PHY_VARS_gNB *gNB,
int N_RB_DL,
int N_RB_UL,
int mu,
int Nid_cell,
uint64_t position_in_burst)
{
NR_DL_FRAME_PARMS *fp = &gNB->frame_parms;
nfapi_nr_config_request_scf_t *gNB_config = &gNB->gNB_config;
//overwrite for new NR parameters
uint64_t rev_burst=0;
for (int i=0; i<64; i++)
rev_burst |= (((position_in_burst>>(63-i))&0x01)<<i);
gNB_config->cell_config.phy_cell_id.value = Nid_cell;
gNB_config->ssb_config.scs_common.value = mu;
gNB_config->ssb_table.ssb_subcarrier_offset.value = 0;
gNB_config->ssb_table.ssb_offset_point_a.value = (N_RB_DL-20)>>1;
gNB_config->ssb_table.ssb_mask_list[1].ssb_mask.value = (rev_burst)&(0xFFFFFFFF);
gNB_config->ssb_table.ssb_mask_list[0].ssb_mask.value = (rev_burst>>32)&(0xFFFFFFFF);
gNB_config->cell_config.frame_duplex_type.value = TDD;
gNB_config->ssb_table.ssb_period.value = 1; //10ms
gNB_config->carrier_config.dl_grid_size[mu].value = N_RB_DL;
gNB_config->carrier_config.ul_grid_size[mu].value = N_RB_UL;
gNB_config->carrier_config.num_tx_ant.value = fp->nb_antennas_tx;
gNB_config->carrier_config.num_rx_ant.value = fp->nb_antennas_rx;
gNB_config->tdd_table.tdd_period.value = 0;
//gNB_config->subframe_config.dl_cyclic_prefix_type.value = (fp->Ncp == NORMAL) ? NFAPI_CP_NORMAL : NFAPI_CP_EXTENDED;
gNB->mac_enabled = 1;
fp->dl_CarrierFreq = 3500000000;//from_nrarfcn(gNB_config->nfapi_config.rf_bands.rf_band[0],gNB_config->nfapi_config.nrarfcn.value);
fp->ul_CarrierFreq = 3500000000;//fp->dl_CarrierFreq - (get_uldl_offset(gNB_config->nfapi_config.rf_bands.rf_band[0])*100000);
if (mu>2) fp->nr_band = 257;
else fp->nr_band = 78;
fp->threequarter_fs= 0;
gNB_config->carrier_config.dl_bandwidth.value = config_bandwidth(mu, N_RB_DL, fp->nr_band);
nr_init_frame_parms(gNB_config, fp);
gNB->configured = 1;
LOG_I(PHY,"gNB configured\n");
}
int main(int argc, char **argv)
{
char c;
@@ -127,7 +171,7 @@ int main(int argc, char **argv)
randominit(0);
while ((c = getopt (argc, argv, "f:hA:pf:g:i:j:n:o:s:S:t:x:y:z:M:N:F:GR:dP:IL:")) != -1) {
while ((c = getopt (argc, argv, "f:hA:pf:g:i:j:n:o:s:S:t:x:y:z:M:N:F:GR:dP:IL:m:")) != -1) {
switch (c) {
/*case 'f':
write_output_file=1;
@@ -302,6 +346,10 @@ int main(int argc, char **argv)
loglvl = atoi(optarg);
break;
case 'm':
mu = atoi(optarg);
break;
default:
case 'h':
printf("%s -h(elp) -p(extended_prefix) -N cell_id -f output_filename -F input_filename -g channel_model -n n_frames -t Delayspread -s snr0 -S snr1 -x transmission_mode -y TXant -z RXant -i Intefrence0 -j Interference1 -A interpolation_file -C(alibration offset dB) -N CellId\n",
@@ -310,6 +358,7 @@ int main(int argc, char **argv)
//printf("-p Use extended prefix mode\n");
//printf("-d Use TDD\n");
printf("-n Number of frames to simulate\n");
printf("-m Numerology index\n");
printf("-s Starting SNR, runs from SNR0 to SNR0 + 5 dB. If n_frames is 1 then just SNR is simulated\n");
printf("-S Ending SNR, runs from SNR0 to SNR1\n");
printf("-t Delay spread for multipath channel\n");
@@ -353,7 +402,7 @@ int main(int argc, char **argv)
frame_parms->nushift = Nid_cell%4;
frame_parms->ssb_type = nr_ssb_type_C;
nr_phy_config_request_sim(gNB,N_RB_DL,N_RB_DL,mu,Nid_cell,SSB_positions);
nr_phy_config_request_sim_pbchsim(gNB,N_RB_DL,N_RB_DL,mu,Nid_cell,SSB_positions);
phy_init_nr_gNB(gNB,0,0);
nr_set_ssb_first_subcarrier(&gNB->gNB_config,frame_parms);
@@ -384,8 +433,17 @@ int main(int argc, char **argv)
}
else AssertFatal(1==0,"Unsupported numerology for mu %d, N_RB %d\n",mu, N_RB_DL);
break;
}
case 3:
scs = 120000;
if (N_RB_DL == 66) {
fs = 122.88e6;
bw = 100e6;
}
else AssertFatal(1==0,"Unsupported numerology for mu %d, N_RB %d\n",mu, N_RB_DL);
break;
}
// cfo with respect to sub-carrier spacing
eps = cfo/scs;