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Fix high MCS test fail for UL (it do not fix the degradation yet)

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This commit is contained in:
Roberto Louro Magueta
2022-04-29 11:00:40 +01:00
parent e236794310
commit 8ba0f2f086
1 changed files with 3 additions and 24 deletions
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openair1/PHY/NR_ESTIMATION/nr_ul_channel_estimation.c
+3 -24
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@@ -206,28 +206,7 @@ int nr_pusch_channel_estimation(PHY_VARS_gNB *gNB,
}
#endif
// Based on Table 6.4.1.1.3-1/2 from TS 38.211
/*int deltas[3] = {0};
int n_delta = 0;
if (pusch_pdu->dmrs_config_type == pusch_dmrs_type1) {
if (pusch_pdu->nrOfLayers <= 2) {
n_delta = 1;
} else {
n_delta = 2;
deltas[1] = 1;
}
} else {
if (pusch_pdu->nrOfLayers <= 2) {
n_delta = 1;
} else if (pusch_pdu->nrOfLayers <= 4) {
n_delta = 2;
deltas[1] = 2;
} else {
n_delta = 3;
deltas[1] = 2;
deltas[2] = 4;
}
}*/
uint8_t b_shift = pusch_pdu->nrOfLayers < 4 ? 1 : log2_approx(pusch_pdu->nrOfLayers>>1);
for (aarx=0; aarx<gNB->frame_parms.nb_antennas_rx; aarx++) {
@@ -265,8 +244,8 @@ int nr_pusch_channel_estimation(PHY_VARS_gNB *gNB,
for (int k_line = 0; k_line <= 1; k_line++) {
re_offset = (k0 + (n << 2) + (k_line << 1) + delta2) % gNB->frame_parms.ofdm_symbol_size;
rxF = (int16_t *) &rxdataF[aarx][(soffset + symbol_offset + re_offset)];
ch[0] += (int16_t) (((int32_t) pil[0] * rxF[0] - (int32_t) pil[1] * rxF[1]) >> 15);
ch[1] += (int16_t) (((int32_t) pil[0] * rxF[1] + (int32_t) pil[1] * rxF[0]) >> 15);
ch[0] += (int16_t) (((int32_t) pil[0] * rxF[0] - (int32_t) pil[1] * rxF[1]) >> (15+b_shift));
ch[1] += (int16_t) (((int32_t) pil[0] * rxF[1] + (int32_t) pil[1] * rxF[0]) >> (15+b_shift));
pil += 2;
}
}