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Added Support of 35Mhz,45Mhz,70Mhz Bandwidth for SCS 30Khz

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Also added support for 35Mhz, 45Mhz bw for 15Khz Subcarrierspacing
Referred Spec TS 38.101 v18.6.0 section 5.3.2, table 5.3.2-1
This commit is contained in:
Raghavendra Dinavahi
2025-02-06 16:44:45 +01:00
parent 0053a3d0f4
commit 3e27175ac2
2 changed files with 293 additions and 9 deletions
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common/utils/nr/nr_common.c
+48 -9
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@@ -188,18 +188,20 @@ uint64_t reverse_bits(uint64_t in, int n_bits)
return rev_bits;
}
static const int tables_5_3_2[5][12] = {
{25, 52, 79, 106, 133, 160, 216, 270, -1, -1, -1, -1}, // 15 FR1
{11, 24, 38, 51, 65, 78, 106, 133, 162, 217, 245, 273}, // 30 FR1
{-1, 11, 18, 24, 31, 38, 51, 65, 79, 107, 121, 135}, // 60 FR1
{66, 132, 264, -1, -1, -1, -1, -1, -1, -1, -1, -1}, // 60 FR2
{32, 66, 132, 264, -1, -1, -1, -1, -1, -1, -1, -1} // 120FR2
#define NUM_BW_ENTRIES 15
static const int tables_5_3_2[5][NUM_BW_ENTRIES] = {
{25, 52, 79, 106, 133, 160, 188, 216, 242, 270, -1, -1, -1, -1, -1}, // 15 FR1
{11, 24, 38, 51, 65, 78, 92, 106, 119, 133, 162, 189, 217, 245, 273}, // 30 FR1
{-1, 11, 18, 24, 31, 38, 44, 51, 58, 65, 79, 93, 107, 121, 135}, // 60 FR1
{66, 132, 264, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1}, // 60 FR2
{32, 66, 132, 264, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1} // 120FR2
};
int get_supported_band_index(int scs, frequency_range_t freq_range, int n_rbs)
{
int scs_index = scs + freq_range;
for (int i = 0; i < 12; i++) {
for (int i = 0; i < NUM_BW_ENTRIES; i++) {
if(n_rbs == tables_5_3_2[scs_index][i])
return i;
}
@@ -209,7 +211,7 @@ int get_supported_band_index(int scs, frequency_range_t freq_range, int n_rbs)
int get_smallest_supported_bandwidth_index(int scs, frequency_range_t frequency_range, int n_rbs)
{
int scs_index = scs + frequency_range;
for (int i = 0; i < 12; i++) {
for (int i = 0; i < NUM_BW_ENTRIES; i++) {
if (n_rbs <= tables_5_3_2[scs_index][i])
return i;
}
@@ -422,7 +424,7 @@ void check_ssb_raster(uint64_t freq, int band, int scs)
int get_supported_bw_mhz(frequency_range_t frequency_range, int bw_index)
{
if (frequency_range == FR1) {
int bandwidth_index_to_mhz[] = {5, 10, 15, 20, 25, 30, 40, 50, 60, 80, 90, 100};
int bandwidth_index_to_mhz[] = {5, 10, 15, 20, 25, 30, 35, 40, 45, 50, 60, 70, 80, 90, 100};
AssertFatal(bw_index >= 0 && bw_index <= sizeofArray(bandwidth_index_to_mhz),
"Bandwidth index %d is invalid\n",
bw_index);
@@ -826,6 +828,18 @@ void get_samplerate_and_bw(int mu,
*rx_bw = 50e6;
}
break;
case 242: // 45Mhz
case 188: // 35Mhz
if (threequarter_fs) {
*sample_rate = 46.08e6;
*samples_per_frame = 460800;
} else {
*sample_rate = 61.44e6;
*samples_per_frame = 614400;
}
*tx_bw = (n_rb == 242) ? 45e6 : 35e6;
*rx_bw = (n_rb == 242) ? 45e6 : 35e6;
break;
case 216:
if (threequarter_fs) {
*sample_rate=46.08e6;
@@ -926,6 +940,17 @@ void get_samplerate_and_bw(int mu,
*rx_bw = 80e6;
}
break;
case 189:
if (threequarter_fs) {
*sample_rate = 92.16e6;
*samples_per_frame = 921600;
} else {
*sample_rate = 122.88e6;
*samples_per_frame = 1228800;
}
*tx_bw = 70e6;
*rx_bw = 70e6;
break;
case 162 :
if (threequarter_fs) {
AssertFatal(1==0,"N_RB %d cannot use 3/4 sampling\n",n_rb);
@@ -951,6 +976,20 @@ void get_samplerate_and_bw(int mu,
}
break;
case 119: // 45Mhz
case 92: // 35Mhz
if (threequarter_fs) {
*sample_rate = 46.08e6;
*samples_per_frame = 460800;
} else {
*sample_rate = 61.44e6;
*samples_per_frame = 614400;
}
*tx_bw = (n_rb == 119) ? 45e6 : 35e6;
*rx_bw = (n_rb == 119) ? 45e6 : 35e6;
break;
case 106:
if (threequarter_fs) {
*sample_rate=46.08e6;