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PMI computation for rank=2 case

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This commit is contained in:
rmagueta
2022-04-06 18:42:00 +01:00
parent 66b3fffbf0
commit 6e4bbe8f49
1 changed files with 8 additions and 6 deletions
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openair1/PHY/NR_UE_TRANSPORT/csi_rx.c
+5 -3
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@@ -484,7 +484,7 @@ int nr_csi_rs_pmi_estimation(PHY_VARS_NR_UE *ue,
return 0; return 0;
} }
if(rank_indicator == 0) { if(rank_indicator == 0 || rank_indicator == 1) {
uint32_t metric[4] = {0}; uint32_t metric[4] = {0};
uint16_t shift = nr_csi_rs_info->log2_maxh + log2_approx(frame_parms->nb_antennas_rx) + log2_approx(csirs_config_pdu->nr_of_rbs) - 1; uint16_t shift = nr_csi_rs_info->log2_maxh + log2_approx(frame_parms->nb_antennas_rx) + log2_approx(csirs_config_pdu->nr_of_rbs) - 1;
@@ -518,13 +518,15 @@ int nr_csi_rs_pmi_estimation(PHY_VARS_NR_UE *ue,
} }
} }
if(rank_indicator == 0) {
for(int tested_i2 = 0; tested_i2 < 4; tested_i2++) { for(int tested_i2 = 0; tested_i2 < 4; tested_i2++) {
if(metric[tested_i2] > metric[i2[0]]) { if(metric[tested_i2] > metric[i2[0]]) {
i2[0] = tested_i2; i2[0] = tested_i2;
} }
} }
} else {
} else if(rank_indicator == 1) { i2[0] = metric[0]+metric[2] > metric[1]+metric[3] ? 0 : 1;
}
} else { } else {
LOG_W(NR_PHY, "PMI computation is not implemented for rank indicator %i\n", rank_indicator); LOG_W(NR_PHY, "PMI computation is not implemented for rank indicator %i\n", rank_indicator);