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common function to get sample rate and BW

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This commit is contained in:
francescomani
2022-08-04 17:19:15 +02:00
parent 7f910a2e36
commit 6e2a83856b
6 changed files with 279 additions and 337 deletions
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common/utils/nr/nr_common.c
+230
View File
@@ -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
uint16_t SL_to_bitmap(int startSymbolIndex, int nrOfSymbols) {
return ((1<<nrOfSymbols)-1)<<startSymbolIndex;
common/utils/nr/nr_common.h
+7
View File
@@ -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_supported_band_index(int scs, int band, int n_rbs);
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 ROUNDIDIV(a,b) (((a<<1)+b)/(b<<1))