maki/openairinterface5g
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

Extension of the channel interpolation implementation for the case NR_SRS_Resource__transmissionComb_PR_n4

Browse Source
This commit is contained in:
rmagueta
2021-12-01 14:43:04 +00:00
parent d7af1269b7
commit 340508ffe0
1 changed files with 18 additions and 7 deletions
Download Patch File Download Diff File Expand all files Collapse all files
openair1/PHY/NR_ESTIMATION/nr_ul_channel_estimation.c
+18 -7
View File
@@ -1136,13 +1136,24 @@ int nr_srs_channel_estimation(PHY_VARS_gNB *gNB,
srs_ls_estimated_channel[ant][nr_srs_info->subcarrier_idx[sc_idx] + subcarrier_offset] = ls_estimated[0] + (((int32_t)ls_estimated[1]<<16)&0xFFFF0000);
if(sc_idx == 0) {
multadd_real_vector_complex_scalar(filt8_l0, ls_estimated, srs_estimated_channel16, 8);
} else if(sc_idx%2 == 1) {
multadd_real_vector_complex_scalar(filt8_m0, ls_estimated, srs_estimated_channel16, 8);
} else if(sc_idx%2 == 0) {
multadd_real_vector_complex_scalar(filt8_mm0, ls_estimated, srs_estimated_channel16, 8);
srs_estimated_channel16+=8;
// Channel interpolation
if(srs_pdu->comb_size == 0) {
if(sc_idx == 0) {
multadd_real_vector_complex_scalar(filt8_l0, ls_estimated, srs_estimated_channel16, 8);
} else if(sc_idx%2 == 1) {
multadd_real_vector_complex_scalar(filt8_m0, ls_estimated, srs_estimated_channel16, 8);
} else if(sc_idx%2 == 0) {
multadd_real_vector_complex_scalar(filt8_mm0, ls_estimated, srs_estimated_channel16, 8);
srs_estimated_channel16+=8;
}
} else {
if(sc_idx>0) {
multadd_real_vector_complex_scalar(filt8_dcr0_h, ls_estimated, srs_estimated_channel16, 8);
srs_estimated_channel16+=8;
srs_estimated_channel16[0] = 0;
srs_estimated_channel16[1] = 0;
}
multadd_real_vector_complex_scalar(filt8_dcl0_h, ls_estimated, srs_estimated_channel16, 8);
}
#ifdef SRS_DEBUG