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Commit 6e2a8385 authored by francescomani's avatar francescomani
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common function to get sample rate and BW

parent 7f910a2e
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Showing with 280 additions and 338 deletions
common/utils/nr/nr_common.c
View file @ 6e2a8385
...@@ -472,6 +472,236 @@ int get_subband_size(int NPRB,int size) { ...@@ -472,6 +472,236 @@ int get_subband_size(int NPRB,int size) {
} }
void get_samplerate_and_bw(int mu,
int n_rb,
int8_t threequarter_fs,
double *sample_rate,
unsigned int *samples_per_frame,
double *tx_bw,
double *rx_bw) {
if (mu == 0) {
switch(n_rb) {
case 270:
if (threequarter_fs) {
*sample_rate=92.16e6;
*samples_per_frame = 921600;
*tx_bw = 50e6;
*rx_bw = 50e6;
} else {
*sample_rate=61.44e6;
*samples_per_frame = 614400;
*tx_bw = 50e6;
*rx_bw = 50e6;
}
case 216:
if (threequarter_fs) {
*sample_rate=46.08e6;
*samples_per_frame = 460800;
*tx_bw = 40e6;
*rx_bw = 40e6;
}
else {
*sample_rate=61.44e6;
*samples_per_frame = 614400;
*tx_bw = 40e6;
*rx_bw = 40e6;
}
break;
case 160: //30 MHz
case 133: //25 MHz
if (threequarter_fs) {
AssertFatal(1==0,"N_RB %d cannot use 3/4 sampling\n",n_rb);
}
else {
*sample_rate=30.72e6;
*samples_per_frame = 307200;
*tx_bw = 20e6;
*rx_bw = 20e6;
}
case 106:
if (threequarter_fs) {
*sample_rate=23.04e6;
*samples_per_frame = 230400;
*tx_bw = 20e6;
*rx_bw = 20e6;
}
else {
*sample_rate=30.72e6;
*samples_per_frame = 307200;
*tx_bw = 20e6;
*rx_bw = 20e6;
}
break;
case 52:
if (threequarter_fs) {
*sample_rate=11.52e6;
*samples_per_frame = 115200;
*tx_bw = 10e6;
*rx_bw = 10e6;
}
else {
*sample_rate=15.36e6;
*samples_per_frame = 153600;
*tx_bw = 10e6;
*rx_bw = 10e6;
}
case 25:
if (threequarter_fs) {
*sample_rate=5.76e6;
*samples_per_frame = 57600;
*tx_bw = 5e6;
*rx_bw = 5e6;
}
else {
*sample_rate=7.68e6;
*samples_per_frame = 76800;
*tx_bw = 5e6;
*rx_bw = 5e6;
}
break;
default:
AssertFatal(0==1,"N_RB %d not yet supported for numerology %d\n",n_rb,mu);
}
} else if (mu == 1) {
switch(n_rb) {
case 273:
if (threequarter_fs) {
*sample_rate=184.32e6;
*samples_per_frame = 1843200;
*tx_bw = 100e6;
*rx_bw = 100e6;
} else {
*sample_rate=122.88e6;
*samples_per_frame = 1228800;
*tx_bw = 100e6;
*rx_bw = 100e6;
}
break;
case 217:
if (threequarter_fs) {
*sample_rate=92.16e6;
*samples_per_frame = 921600;
*tx_bw = 80e6;
*rx_bw = 80e6;
} else {
*sample_rate=122.88e6;
*samples_per_frame = 1228800;
*tx_bw = 80e6;
*rx_bw = 80e6;
}
break;
case 162 :
if (threequarter_fs) {
AssertFatal(1==0,"N_RB %d cannot use 3/4 sampling\n",n_rb);
}
else {
*sample_rate=61.44e6;
*samples_per_frame = 614400;
*tx_bw = 60e6;
*rx_bw = 60e6;
}
break;
case 133 :
if (threequarter_fs) {
AssertFatal(1==0,"N_RB %d cannot use 3/4 sampling\n",n_rb);
}
else {
*sample_rate=61.44e6;
*samples_per_frame = 614400;
*tx_bw = 50e6;
*rx_bw = 50e6;
}
break;
case 106:
if (threequarter_fs) {
*sample_rate=46.08e6;
*samples_per_frame = 460800;
*tx_bw = 40e6;
*rx_bw = 40e6;
}
else {
*sample_rate=61.44e6;
*samples_per_frame = 614400;
*tx_bw = 40e6;
*rx_bw = 40e6;
}
break;
case 51:
if (threequarter_fs) {
*sample_rate=23.04e6;
*samples_per_frame = 230400;
*tx_bw = 20e6;
*rx_bw = 20e6;
}
else {
*sample_rate=30.72e6;
*samples_per_frame = 307200;
*tx_bw = 20e6;
*rx_bw = 20e6;
}
break;
case 24:
if (threequarter_fs) {
*sample_rate=11.52e6;
*samples_per_frame = 115200;
*tx_bw = 10e6;
*rx_bw = 10e6;
}
else {
*sample_rate=15.36e6;
*samples_per_frame = 153600;
*tx_bw = 10e6;
*rx_bw = 10e6;
}
break;
default:
AssertFatal(0==1,"N_RB %d not yet supported for numerology %d\n",n_rb,mu);
}
} else if (mu == 3) {
switch(n_rb) {
case 66:
if (threequarter_fs) {
*sample_rate=184.32e6;
*samples_per_frame = 1843200;
*tx_bw = 100e6;
*rx_bw = 100e6;
} else {
*sample_rate = 122.88e6;
*samples_per_frame = 1228800;
*tx_bw = 100e6;
*rx_bw = 100e6;
}
break;
case 32:
if (threequarter_fs) {
*sample_rate=92.16e6;
*samples_per_frame = 921600;
*tx_bw = 50e6;
*rx_bw = 50e6;
} else {
*sample_rate=61.44e6;
*samples_per_frame = 614400;
*tx_bw = 50e6;
*rx_bw = 50e6;
}
break;
default:
AssertFatal(0==1,"N_RB %d not yet supported for numerology %d\n",n_rb,mu);
}
} else {
AssertFatal(0 == 1,"Numerology %d not supported for the moment\n",mu);
}
}
// from start symbol index and nb or symbols to symbol occupation bitmap in a slot // from start symbol index and nb or symbols to symbol occupation bitmap in a slot
uint16_t SL_to_bitmap(int startSymbolIndex, int nrOfSymbols) { uint16_t SL_to_bitmap(int startSymbolIndex, int nrOfSymbols) {
return ((1<<nrOfSymbols)-1)<<startSymbolIndex; return ((1<<nrOfSymbols)-1)<<startSymbolIndex;
......
common/utils/nr/nr_common.h
View file @ 6e2a8385
...@@ -76,6 +76,13 @@ uint16_t SL_to_bitmap(int startSymbolIndex, int nrOfSymbols); ...@@ -76,6 +76,13 @@ uint16_t SL_to_bitmap(int startSymbolIndex, int nrOfSymbols);
int get_nb_periods_per_frame(uint8_t tdd_period); int get_nb_periods_per_frame(uint8_t tdd_period);
int get_supported_band_index(int scs, int band, int n_rbs); int get_supported_band_index(int scs, int band, int n_rbs);
long rrc_get_max_nr_csrs(uint8_t max_rbs, long b_SRS); long rrc_get_max_nr_csrs(uint8_t max_rbs, long b_SRS);
void get_samplerate_and_bw(int mu,
int n_rb,
int8_t threequarter_fs,
double *sample_rate,
unsigned int *samples_per_frame,
double *tx_bw,
double *rx_bw);
#define CEILIDIV(a,b) ((a+b-1)/b) #define CEILIDIV(a,b) ((a+b-1)/b)
#define ROUNDIDIV(a,b) (((a<<1)+b)/(b<<1)) #define ROUNDIDIV(a,b) (((a<<1)+b)/(b<<1))
......
executables/nr-ru.c
View file @ 6e2a8385
...@@ -31,6 +31,7 @@ ...@@ -31,6 +31,7 @@
#undef MALLOC //there are two conflicting definitions, so we better make sure we don't use it at all #undef MALLOC //there are two conflicting definitions, so we better make sure we don't use it at all
#include "common/utils/nr/nr_common.h"
#include "common/utils/assertions.h" #include "common/utils/assertions.h"
#include "common/utils/system.h" #include "common/utils/system.h"
#include "common/ran_context.h" #include "common/ran_context.h"
...@@ -809,226 +810,13 @@ void fill_rf_config(RU_t *ru, char *rf_config_file) { ...@@ -809,226 +810,13 @@ void fill_rf_config(RU_t *ru, char *rf_config_file) {
int mu = config->ssb_config.scs_common.value; int mu = config->ssb_config.scs_common.value;
int N_RB = config->carrier_config.dl_grid_size[config->ssb_config.scs_common.value].value; int N_RB = config->carrier_config.dl_grid_size[config->ssb_config.scs_common.value].value;
if (mu == NR_MU_0) { get_samplerate_and_bw(mu,
switch(N_RB) { N_RB,
case 270: fp->threequarter_fs,
if (fp->threequarter_fs) { &cfg->sample_rate,
cfg->sample_rate=92.16e6; &cfg->samples_per_frame,
cfg->samples_per_frame = 921600; &cfg->tx_bw,
cfg->tx_bw = 50e6; &cfg->rx_bw);
cfg->rx_bw = 50e6;
} else {
cfg->sample_rate=61.44e6;
cfg->samples_per_frame = 614400;
cfg->tx_bw = 50e6;
cfg->rx_bw = 50e6;
}
case 216:
if (fp->threequarter_fs) {
cfg->sample_rate=46.08e6;
cfg->samples_per_frame = 460800;
cfg->tx_bw = 40e6;
cfg->rx_bw = 40e6;
}
else {
cfg->sample_rate=61.44e6;
cfg->samples_per_frame = 614400;
cfg->tx_bw = 40e6;
cfg->rx_bw = 40e6;
}
break;
case 160: //30 MHz
case 133: //25 MHz
if (fp->threequarter_fs) {
AssertFatal(1==0,"N_RB %d cannot use 3/4 sampling\n",N_RB);
}
else {
cfg->sample_rate=30.72e6;
cfg->samples_per_frame = 307200;
cfg->tx_bw = 20e6;
cfg->rx_bw = 20e6;
}
case 106:
if (fp->threequarter_fs) {
cfg->sample_rate=23.04e6;
cfg->samples_per_frame = 230400;
cfg->tx_bw = 20e6;
cfg->rx_bw = 20e6;
}
else {
cfg->sample_rate=30.72e6;
cfg->samples_per_frame = 307200;
cfg->tx_bw = 20e6;
cfg->rx_bw = 20e6;
}
break;
case 52:
if (fp->threequarter_fs) {
cfg->sample_rate=11.52e6;
cfg->samples_per_frame = 115200;
cfg->tx_bw = 10e6;
cfg->rx_bw = 10e6;
}
else {
cfg->sample_rate=15.36e6;
cfg->samples_per_frame = 153600;
cfg->tx_bw = 10e6;
cfg->rx_bw = 10e6;
}
case 25:
if (fp->threequarter_fs) {
cfg->sample_rate=5.76e6;
cfg->samples_per_frame = 57600;
cfg->tx_bw = 5e6;
cfg->rx_bw = 5e6;
}
else {
cfg->sample_rate=7.68e6;
cfg->samples_per_frame = 76800;
cfg->tx_bw = 5e6;
cfg->rx_bw = 5e6;
}
break;
default:
AssertFatal(0==1,"N_RB %d not yet supported for numerology %d\n",N_RB,mu);
}
} else if (mu == NR_MU_1) {
switch(N_RB) {
case 273:
if (fp->threequarter_fs) {
cfg->sample_rate=184.32e6;
cfg->samples_per_frame = 1843200;
cfg->tx_bw = 100e6;
cfg->rx_bw = 100e6;
} else {
cfg->sample_rate=122.88e6;
cfg->samples_per_frame = 1228800;
cfg->tx_bw = 100e6;
cfg->rx_bw = 100e6;
}
break;
case 217:
if (fp->threequarter_fs) {
cfg->sample_rate=92.16e6;
cfg->samples_per_frame = 921600;
cfg->tx_bw = 80e6;
cfg->rx_bw = 80e6;
} else {
cfg->sample_rate=122.88e6;
cfg->samples_per_frame = 1228800;
cfg->tx_bw = 80e6;
cfg->rx_bw = 80e6;
}
break;
case 162 :
if (fp->threequarter_fs) {
AssertFatal(1==0,"N_RB %d cannot use 3/4 sampling\n",N_RB);
}
else {
cfg->sample_rate=61.44e6;
cfg->samples_per_frame = 614400;
cfg->tx_bw = 60e6;
cfg->rx_bw = 60e6;
}
break;
case 133 :
if (fp->threequarter_fs) {
AssertFatal(1==0,"N_RB %d cannot use 3/4 sampling\n",N_RB);
}
else {
cfg->sample_rate=61.44e6;
cfg->samples_per_frame = 614400;
cfg->tx_bw = 50e6;
cfg->rx_bw = 50e6;
}
break;
case 106:
if (fp->threequarter_fs) {
cfg->sample_rate=46.08e6;
cfg->samples_per_frame = 460800;
cfg->tx_bw = 40e6;
cfg->rx_bw = 40e6;
}
else {
cfg->sample_rate=61.44e6;
cfg->samples_per_frame = 614400;
cfg->tx_bw = 40e6;
cfg->rx_bw = 40e6;
}
break;
case 51:
if (fp->threequarter_fs) {
cfg->sample_rate=23.04e6;
cfg->samples_per_frame = 230400;
cfg->tx_bw = 20e6;
cfg->rx_bw = 20e6;
}
else {
cfg->sample_rate=30.72e6;
cfg->samples_per_frame = 307200;
cfg->tx_bw = 20e6;
cfg->rx_bw = 20e6;
}
break;
case 24:
if (fp->threequarter_fs) {
cfg->sample_rate=11.52e6;
cfg->samples_per_frame = 115200;
cfg->tx_bw = 10e6;
cfg->rx_bw = 10e6;
}
else {
cfg->sample_rate=15.36e6;
cfg->samples_per_frame = 153600;
cfg->tx_bw = 10e6;
cfg->rx_bw = 10e6;
}
break;
default:
AssertFatal(0==1,"N_RB %d not yet supported for numerology %d\n",N_RB,mu);
}
} else if (mu == NR_MU_3) {
switch(N_RB) {
case 66:
if (fp->threequarter_fs) {
cfg->sample_rate=184.32e6;
cfg->samples_per_frame = 1843200;
cfg->tx_bw = 100e6;
cfg->rx_bw = 100e6;
} else {
cfg->sample_rate = 122.88e6;
cfg->samples_per_frame = 1228800;
cfg->tx_bw = 100e6;
cfg->rx_bw = 100e6;
}
break;
case 32:
if (fp->threequarter_fs) {
cfg->sample_rate=92.16e6;
cfg->samples_per_frame = 921600;
cfg->tx_bw = 50e6;
cfg->rx_bw = 50e6;
} else {
cfg->sample_rate=61.44e6;
cfg->samples_per_frame = 614400;
cfg->tx_bw = 50e6;
cfg->rx_bw = 50e6;
}
break;
default:
AssertFatal(0==1,"N_RB %d not yet supported for numerology %d\n",N_RB,mu);
}
} else {
AssertFatal(0 == 1,"Numerology %d not supported for the moment\n",mu);
}
if (config->cell_config.frame_duplex_type.value==TDD) if (config->cell_config.frame_duplex_type.value==TDD)
cfg->duplex_mode = duplex_mode_TDD; cfg->duplex_mode = duplex_mode_TDD;
......
openair1/SIMULATION/NR_PHY/dlsim.c
View file @ 6e2a8385
...@@ -887,55 +887,22 @@ int main(int argc, char **argv) ...@@ -887,55 +887,22 @@ int main(int argc, char **argv)
if (g_rbStart < 0) g_rbStart=0; if (g_rbStart < 0) g_rbStart=0;
if (g_rbSize < 0) g_rbSize = N_RB_DL - g_rbStart; if (g_rbSize < 0) g_rbSize = N_RB_DL - g_rbStart;
double fs,bw; double fs,txbw,rxbw;
uint32_t samples;
if (mu == 0 && N_RB_DL == 25) { get_samplerate_and_bw(mu,
fs = 7.68e6; N_RB_DL,
bw = 5e6; frame_parms->threequarter_fs,
} &fs,
else if (mu == 1 && N_RB_DL == 217) { &samples,
fs = 122.88e6; &txbw,
bw = 80e6; &rxbw);
}
else if (mu == 1 && N_RB_DL == 245) {
fs = 122.88e6;
bw = 90e6;
}
else if (mu == 1 && N_RB_DL == 273) {
fs = 122.88e6;
bw = 100e6;
}
else if (mu == 1 && N_RB_DL == 106) {
fs = 61.44e6;
bw = 40e6;
}
else if (mu == 1 && N_RB_DL == 133) {
fs = 61.44e6;
bw = 50e6;
}
else if (mu == 1 && N_RB_DL == 162) {
fs = 61.44e6;
bw = 60e6;
}
else if (mu == 1 && N_RB_DL == 24) {
fs = 15.36e6;
bw = 10e6;
}
else if (mu == 3 && N_RB_DL == 66) {
fs = 122.88e6;
bw = 100e6;
}
else if (mu == 3 && N_RB_DL == 32) {
fs = 61.44e6;
bw = 50e6;
}
else AssertFatal(1==0,"Unsupported numerology for mu %d, N_RB %d\n",mu, N_RB_DL);
gNB2UE = new_channel_desc_scm(n_tx, gNB2UE = new_channel_desc_scm(n_tx,
n_rx, n_rx,
channel_model, channel_model,
fs/1e6,//sampling frequency in MHz fs/1e6,//sampling frequency in MHz
bw, txbw,
30e-9, 30e-9,
0, 0,
0, 0,
......
openair1/SIMULATION/NR_PHY/pucchsim.c
View file @ 6e2a8385
...@@ -27,6 +27,7 @@ ...@@ -27,6 +27,7 @@
#include <sys/mman.h> #include <sys/mman.h>
#include "common/config/config_userapi.h" #include "common/config/config_userapi.h"
#include "common/utils/load_module_shlib.h" #include "common/utils/load_module_shlib.h"
#include "common/utils/nr/nr_common.h"
#include "common/utils/LOG/log.h" #include "common/utils/LOG/log.h"
#include "common/ran_context.h" #include "common/ran_context.h"
#include "PHY/types.h" #include "PHY/types.h"
...@@ -390,45 +391,18 @@ int main(int argc, char **argv) ...@@ -390,45 +391,18 @@ int main(int argc, char **argv)
nr_phy_config_request_sim(gNB,N_RB_DL,N_RB_DL,mu,Nid_cell,SSB_positions); nr_phy_config_request_sim(gNB,N_RB_DL,N_RB_DL,mu,Nid_cell,SSB_positions);
phy_init_nr_gNB(gNB,0,0); phy_init_nr_gNB(gNB,0,0);
double fs,bw,scs,eps; double fs,txbw,rxbw;
uint32_t samples;
if (mu == 1 && N_RB_DL == 217) {
fs = 122.88e6; get_samplerate_and_bw(mu,
bw = 80e6; N_RB_DL,
scs = 30000; frame_parms->threequarter_fs,
} &fs,
else if (mu == 1 && N_RB_DL == 245) { &samples,
fs = 122.88e6; &txbw,
bw = 90e6; &rxbw);
scs = 30000;
}
else if (mu == 1 && N_RB_DL == 273) {
fs = 122.88e6;
bw = 100e6;
scs = 30000;
}
else if (mu == 1 && N_RB_DL == 106) {
fs = 61.44e6;
bw = 40e6;
scs = 30000;
}
else AssertFatal(1==0,"Unsupported numerology for mu %d, N_RB %d\n",mu, N_RB_DL);
// cfo with respect to sub-carrier spacing
eps = cfo/scs;
// computation of integer and fractional FO to compare with estimation results
int IFO;
if(eps!=0.0){
printf("Introducing a CFO of %lf relative to SCS of %d kHz\n",eps,(int)(scs/1000));
if (eps>0)
IFO=(int)(eps+0.5);
else
IFO=(int)(eps-0.5);
printf("FFO = %lf; IFO = %d\n",eps-IFO,IFO);
}
UE2gNB = new_channel_desc_scm(n_tx, n_rx, channel_model, fs, bw, DS_TDL,0, 0, 0, 0); UE2gNB = new_channel_desc_scm(n_tx, n_rx, channel_model, fs, txbw, DS_TDL,0, 0, 0, 0);
if (UE2gNB==NULL) { if (UE2gNB==NULL) {
printf("Problem generating channel model. Exiting.\n"); printf("Problem generating channel model. Exiting.\n");
...@@ -477,9 +451,6 @@ int main(int argc, char **argv) ...@@ -477,9 +451,6 @@ int main(int argc, char **argv)
memcpy(&UE->frame_parms,frame_parms,sizeof(NR_DL_FRAME_PARMS)); memcpy(&UE->frame_parms,frame_parms,sizeof(NR_DL_FRAME_PARMS));
UE->frame_parms.nb_antennas_rx=1; UE->frame_parms.nb_antennas_rx=1;
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) if (init_nr_ue_signal(UE, 1) != 0)
{ {
printf("Error at UE NR initialisation\n"); printf("Error at UE NR initialisation\n");
...@@ -568,7 +539,7 @@ int main(int argc, char **argv) ...@@ -568,7 +539,7 @@ int main(int argc, char **argv)
} }
random_channel(UE2gNB,0); random_channel(UE2gNB,0);
freq_channel(UE2gNB,N_RB_DL,2*N_RB_DL+1,scs/1000); freq_channel(UE2gNB,N_RB_DL,2*N_RB_DL+1,15<<mu);
for (int symb=0; symb<nrofSymbols; symb++) { for (int symb=0; symb<nrofSymbols; symb++) {
int i0 = (startingSymbolIndex + symb)*gNB->frame_parms.ofdm_symbol_size; int i0 = (startingSymbolIndex + symb)*gNB->frame_parms.ofdm_symbol_size;
for (int re=0;re<N_RB_DL*12;re++) { for (int re=0;re<N_RB_DL*12;re++) {
......
openair1/SIMULATION/NR_PHY/ulsim.c
View file @ 6e2a8385
...@@ -28,6 +28,7 @@ ...@@ -28,6 +28,7 @@
#include "common/ran_context.h" #include "common/ran_context.h"
#include "common/config/config_userapi.h" #include "common/config/config_userapi.h"
#include "common/utils/LOG/log.h" #include "common/utils/LOG/log.h"
#include "common/utils/nr/nr_common.h"
#include "PHY/defs_gNB.h" #include "PHY/defs_gNB.h"
#include "PHY/defs_nr_common.h" #include "PHY/defs_nr_common.h"
#include "PHY/defs_nr_UE.h" #include "PHY/defs_nr_UE.h"
...@@ -668,45 +669,23 @@ int main(int argc, char **argv) ...@@ -668,45 +669,23 @@ int main(int argc, char **argv)
if (snr1set == 0) if (snr1set == 0)
snr1 = snr0 + 10; snr1 = snr0 + 10;
double sampling_frequency;
double bandwidth;
if (mu == 0 && N_RB_UL == 25 ) { double sampling_frequency, tx_bandwidth, rx_bandwidth;
sampling_frequency = 7.68; uint32_t samples;
bandwidth = 5; get_samplerate_and_bw(mu,
} N_RB_DL,
else if (mu == 1 && N_RB_UL == 273) { openair0_cfg[0].threequarter_fs,
sampling_frequency = 122.88; &sampling_frequency,
bandwidth = 100; &samples,
} &tx_bandwidth,
else if (mu == 1 && N_RB_UL == 217) { &rx_bandwidth);
sampling_frequency = 122.88;
bandwidth = 80;
}
else if (mu == 1 && N_RB_UL == 106) {
sampling_frequency = 61.44;
bandwidth = 40;
}
else if (mu == 1 && N_RB_UL == 24) {
sampling_frequency = 15.36;
bandwidth = 10;
}
else if (mu == 3 && N_RB_UL == 32) {
sampling_frequency = 61.44;
bandwidth = 50;
}
else {
printf("Add N_RB_UL %d\n",N_RB_UL);
exit(-1);
}
LOG_I( PHY,"++++++++++++++++++++++++++++++++++++++++++++++%i+++++++++++++++++++++++++++++++++++++++++",loglvl); LOG_I( PHY,"++++++++++++++++++++++++++++++++++++++++++++++%i+++++++++++++++++++++++++++++++++++++++++",loglvl);
if (openair0_cfg[0].threequarter_fs == 1) sampling_frequency*=.75;
UE2gNB = new_channel_desc_scm(n_tx, n_rx, channel_model, UE2gNB = new_channel_desc_scm(n_tx, n_rx, channel_model,
sampling_frequency, sampling_frequency/1e6,
bandwidth, tx_bandwidth,
DS_TDL, DS_TDL,
0, 0, 0, 0); 0, 0, 0, 0);
......
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