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This commit is contained in:
rmagueta
2022-04-06 17:44:47 +01:00
parent 8e58e83be6
commit 66b3fffbf0
1 changed files with 12 additions and 10 deletions
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openair1/PHY/NR_UE_TRANSPORT/csi_rx.c
+12 -10
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@@ -468,13 +468,15 @@ int nr_csi_rs_pmi_estimation(PHY_VARS_NR_UE *ue,
uint8_t *i2) {
NR_DL_FRAME_PARMS *frame_parms = &ue->frame_parms;
i1[0] = 1;
i1[1] = 1;
i1[2] = 1;
*i2 = 0;
memset(i1,0,3*sizeof(uint8_t));
i2[0] = 0;
// TS 38.214: For 2 antenna ports {3000, 3001} and the UE configured with higher layer parameter codebookType set to
// 'typeISinglePanel' each PMI value corresponds to a codebook index given in Table 5.2.2.2.1-1.
// i1 is a three-element vector in the form of [i11 i12 i13], when CodebookType is specified as 'Type1SinglePanel'.
// Note that i13 is not applicable when the number of transmission layers is one of {1, 5, 6, 7, 8}.
// i2, for 'Type1SinglePanel' codebook type, it is a scalar when PMIMode is specified as 'wideband', and when PMIMode
// is specified as 'subband' or when PRGSize, the length of the i2 vector equals to the number of subbands or PRGs.
// Note that when the number of CSI-RS ports is 2, the applicable codebook type is 'Type1SinglePanel'. In this case,
// the precoding matrix is obtained by a single index (i2 field here) based on TS 38.214 Table 5.2.2.2.1-1.
// The first column is applicable if the UE is reporting a Rank = 1, whereas the second column is applicable if the
// UE is reporting a Rank = 2.
@@ -517,8 +519,8 @@ int nr_csi_rs_pmi_estimation(PHY_VARS_NR_UE *ue,
}
for(int tested_i2 = 0; tested_i2 < 4; tested_i2++) {
if(metric[tested_i2] > metric[*i2]) {
*i2 = tested_i2;
if(metric[tested_i2] > metric[i2[0]]) {
i2[0] = tested_i2;
}
}
@@ -597,10 +599,10 @@ int nr_ue_csi_rs_procedures(PHY_VARS_NR_UE *ue, UE_nr_rxtx_proc_t *proc, uint8_t
ue->nr_csi_rs_info->i1,
ue->nr_csi_rs_info->i2);
LOG_I(NR_PHY, "RI = %i, i1 = [%i %i %i], i2 = %i\n",
LOG_I(NR_PHY, "RI = %i, i1 = %i.%i.%i, i2 = %i\n",
*ue->nr_csi_rs_info->rank_indicator + 1,
ue->nr_csi_rs_info->i1[0], ue->nr_csi_rs_info->i1[1], ue->nr_csi_rs_info->i1[2],
*ue->nr_csi_rs_info->i2);
ue->nr_csi_rs_info->i2[0]);
return 0;
}