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Commit ad96697d authored by francescomani's avatar francescomani
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common function for CSI-RS mapping parameters

parent e15fa14c
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Showing with 393 additions and 386 deletions
openair1/PHY/NR_TRANSPORT/nr_csi_rs.c
View file @ ad96697d
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openair1/PHY/nr_phy_common/inc/nr_phy_common.h
View file @ ad96697d
......@@ -24,6 +24,16 @@
#include "PHY/impl_defs_top.h"
#include "PHY/TOOLS/tools_defs.h"
typedef struct {
int size;
int ports;
int kprime;
int lprime;
int j[16];
int koverline[16];
int loverline[16];
} csi_mapping_parms_t;
csi_mapping_parms_t get_csi_mapping_parms(int row, int b, int l0, int l1);
void nr_qpsk_llr(int32_t *rxdataF_comp, int16_t *llr, uint32_t nb_re);
void nr_16qam_llr(int32_t *rxdataF_comp, int32_t *ch_mag_in, int16_t *llr, uint32_t nb_re);
void nr_64qam_llr(int32_t *rxdataF_comp, int32_t *ch_mag, int32_t *ch_mag2, int16_t *llr, uint32_t nb_re);
......
openair1/PHY/nr_phy_common/src/nr_phy_common.c
View file @ ad96697d
......@@ -354,6 +354,363 @@ void nr_256qam_llr(int32_t *rxdataF_comp, int32_t *ch_mag, int32_t *ch_mag2, int
simde_mm_empty();
}
csi_mapping_parms_t get_csi_mapping_parms(int row, int b, int l0, int l1)
{
AssertFatal(b != 0, "Invalid CSI frequency domain mapping: no bit selected in bitmap\n");
csi_mapping_parms_t csi_parms = {0};
int found = 0;
int fi = 0;
int k_n[6];
// implementation of table 7.4.1.5.3-1 of 38.211
// lprime and kprime are the max value of l' and k'
switch (row) {
case 1:
csi_parms.ports = 1;
csi_parms.kprime = 0;
csi_parms.lprime = 0;
csi_parms.size = 3;
while (found < 1) {
if ((b >> fi) & 0x01) {
k_n[found] = fi;
found++;
}
else
fi++;
}
for (int i = 0; i < csi_parms.size; i++) {
csi_parms.j[i] = 0;
csi_parms.loverline[i] = l0;
csi_parms.koverline[i] = k_n[0] + (i << 2);
}
break;
case 2:
csi_parms.ports = 1;
csi_parms.kprime = 0;
csi_parms.lprime = 0;
csi_parms.size = 1;
while (found < 1) {
if ((b >> fi) & 0x01) {
k_n[found] = fi;
found++;
}
else
fi++;
}
for (int i = 0; i < csi_parms.size; i++) {
csi_parms.j[i] = 0;
csi_parms.loverline[i] = l0;
csi_parms.koverline[i] = k_n[0];
}
break;
case 3:
csi_parms.ports = 2;
csi_parms.kprime = 1;
csi_parms.lprime = 0;
csi_parms.size = 1;
while (found < 1) {
if ((b >> fi) & 0x01) {
k_n[found] = fi << 1;
found++;
}
else
fi++;
}
for (int i = 0; i < csi_parms.size; i++) {
csi_parms.j[i] = 0;
csi_parms.loverline[i] = l0;
csi_parms.koverline[i] = k_n[0];
}
break;
case 4:
csi_parms.ports = 4;
csi_parms.kprime = 1;
csi_parms.lprime = 0;
csi_parms.size = 2;
while (found < 1) {
if ((b >> fi) & 0x01) {
k_n[found] = fi << 2;
found++;
}
else
fi++;
}
for (int i = 0; i < csi_parms.size; i++) {
csi_parms.j[i] = i;
csi_parms.loverline[i] = l0;
csi_parms.koverline[i] = k_n[0] + (i << 1);
}
break;
case 5:
csi_parms.ports = 4;
csi_parms.kprime = 1;
csi_parms.lprime = 0;
csi_parms.size = 2;
while (found < 1) {
if ((b >> fi) & 0x01) {
k_n[found] = fi << 1;
found++;
}
else
fi++;
}
for (int i = 0; i < csi_parms.size; i++) {
csi_parms.j[i] = i;
csi_parms.loverline[i] = l0 + i;
csi_parms.koverline[i] = k_n[0];
}
break;
case 6:
csi_parms.ports = 8;
csi_parms.kprime = 1;
csi_parms.lprime = 0;
csi_parms.size = 4;
while (found < 4) {
if ((b >> fi) & 0x01) {
k_n[found] = fi << 1;
found++;
}
fi++;
}
for (int i = 0; i < csi_parms.size; i++) {
csi_parms.j[i] = i;
csi_parms.loverline[i] = l0;
csi_parms.koverline[i] = k_n[i];
}
break;
case 7:
csi_parms.ports = 8;
csi_parms.kprime = 1;
csi_parms.lprime = 0;
csi_parms.size = 4;
while (found < 2) {
if ((b >> fi) & 0x01) {
k_n[found] = fi << 1;
found++;
}
fi++;
}
for (int i = 0; i < csi_parms.size; i++) {
csi_parms.j[i] = i;
csi_parms.loverline[i] = l0 + (i >> 1);
csi_parms.koverline[i] = k_n[i % 2];
}
break;
case 8:
csi_parms.ports = 8;
csi_parms.kprime = 1;
csi_parms.lprime = 1;
csi_parms.size = 2;
while (found < 2) {
if ((b >> fi) & 0x01) {
k_n[found] = fi << 1;
found++;
}
fi++;
}
for (int i = 0; i < csi_parms.size; i++) {
csi_parms.j[i] = i;
csi_parms.loverline[i] = l0;
csi_parms.koverline[i] = k_n[i];
}
break;
case 9:
csi_parms.ports = 12;
csi_parms.kprime = 1;
csi_parms.lprime = 0;
csi_parms.size = 6;
while (found < 6) {
if ((b >> fi) & 0x01) {
k_n[found] = fi << 1;
found++;
}
fi++;
}
for (int i = 0; i < csi_parms.size; i++) {
csi_parms.j[i] = i;
csi_parms.loverline[i] = l0;
csi_parms.koverline[i] = k_n[i];
}
break;
case 10:
csi_parms.ports = 12;
csi_parms.kprime = 1;
csi_parms.lprime = 1;
csi_parms.size = 3;
while (found < 3) {
if ((b >> fi) & 0x01) {
k_n[found] = fi << 1;
found++;
}
fi++;
}
for (int i = 0; i < csi_parms.size; i++) {
csi_parms.j[i] = i;
csi_parms.loverline[i] = l0;
csi_parms.koverline[i] = k_n[i];
}
break;
case 11:
csi_parms.ports = 16;
csi_parms.kprime = 1;
csi_parms.lprime = 0;
csi_parms.size = 8;
while (found < 4) {
if ((b >> fi) & 0x01) {
k_n[found] = fi << 1;
found++;
}
fi++;
}
for (int i = 0; i < csi_parms.size; i++) {
csi_parms.j[i] = i;
csi_parms.loverline[i] = l0 + (i >> 2);
csi_parms.koverline[i] = k_n[i % 4];
}
break;
case 12:
csi_parms.ports = 16;
csi_parms.kprime = 1;
csi_parms.lprime = 1;
csi_parms.size = 4;
while (found < 4) {
if ((b >> fi) & 0x01) {
k_n[found] = fi << 1;
found++;
}
fi++;
}
for (int i = 0; i < csi_parms.size; i++) {
csi_parms.j[i] = i;
csi_parms.loverline[i] = l0;
csi_parms.koverline[i] = k_n[i];
}
break;
case 13:
csi_parms.ports = 24;
csi_parms.kprime = 1;
csi_parms.lprime = 0;
csi_parms.size = 12;
while (found < 3) {
if ((b >> fi) & 0x01) {
k_n[found] = fi << 1;
found++;
}
fi++;
}
for (int i = 0; i < csi_parms.size; i++) {
csi_parms.j[i] = i;
if (i < 6)
csi_parms.loverline[i] = l0 + i / 3;
else
csi_parms.loverline[i] = l1 + i / 9;
csi_parms.koverline[i] = k_n[i % 3];
}
break;
case 14:
csi_parms.ports = 24;
csi_parms.kprime = 1;
csi_parms.lprime = 1;
csi_parms.size = 6;
while (found < 3) {
if ((b >> fi) & 0x01) {
k_n[found] = fi << 1;
found++;
}
fi++;
}
for (int i = 0; i < csi_parms.size; i++) {
csi_parms.j[i] = i;
if (i < 3)
csi_parms.loverline[i] = l0;
else
csi_parms.loverline[i] = l1;
csi_parms.koverline[i] = k_n[i % 3];
}
break;
case 15:
csi_parms.ports = 24;
csi_parms.kprime = 1;
csi_parms.lprime = 3;
csi_parms.size = 3;
while (found < 3) {
if ((b >> fi) & 0x01) {
k_n[found] = fi << 1;
found++;
}
fi++;
}
for (int i = 0; i < csi_parms.size; i++) {
csi_parms.j[i] = i;
csi_parms.loverline[i] = l0;
csi_parms.koverline[i] = k_n[i];
}
break;
case 16:
csi_parms.ports = 32;
csi_parms.kprime = 1;
csi_parms.lprime = 0;
csi_parms.size = 16;
while (found < 4) {
if ((b >> fi) & 0x01) {
k_n[found] = fi << 1;
found++;
}
fi++;
}
for (int i = 0; i < csi_parms.size; i++) {
csi_parms.j[i] = i;
if (i < 8)
csi_parms.loverline[i] = l0 + (i >> 2);
else
csi_parms.loverline[i] = l1 + (i / 12);
csi_parms.koverline[i] = k_n[i % 4];
}
break;
case 17:
csi_parms.ports = 32;
csi_parms.kprime = 1;
csi_parms.lprime = 1;
csi_parms.size = 8;
while (found < 4) {
if ((b >> fi) & 0x01) {
k_n[found] = fi << 1;
found++;
}
fi++;
}
for (int i = 0; i < csi_parms.size; i++) {
csi_parms.j[i] = i;
if (i < 4)
csi_parms.loverline[i] = l0;
else
csi_parms.loverline[i] = l1;
csi_parms.koverline[i] = k_n[i % 4];
}
break;
case 18:
csi_parms.ports = 32;
csi_parms.kprime = 1;
csi_parms.lprime = 3;
csi_parms.size = 4;
while (found < 4) {
if ((b >> fi) & 0x01) {
k_n[found] = fi << 1;
found++;
}
fi++;
}
for (int i = 0; i < csi_parms.size; i++) {
csi_parms.j[i] = i;
csi_parms.loverline[i] = l0;
csi_parms.koverline[i] = k_n[i];
}
break;
default:
AssertFatal(false, "Row %d is not valid for CSI Table 7.4.1.5.3-1\n", row);
}
return csi_parms;
}
void freq2time(uint16_t ofdm_symbol_size, int16_t *freq_signal, int16_t *time_signal)
{
const idft_size_idx_t idft_size = get_idft(ofdm_symbol_size);
......
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