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

Fix SRS mapping at UE for a number of PRBs higher than 53

Browse Source
This commit is contained in:
rmagueta
2021-11-19 15:43:56 +00:00
parent 10ecfcda40
commit 67c2ddb742
1 changed files with 15 additions and 6 deletions
Download Patch File Download Diff File Expand all files Collapse all files
openair1/PHY/NR_UE_TRANSPORT/srs_modulation_nr.c
+15 -6
View File
@@ -197,6 +197,8 @@ int generate_srs_nr(fapi_nr_ul_config_srs_pdu *srs_config_pdu,
/* for each antenna ports for transmission */ /* for each antenna ports for transmission */
for (int p_index = 0; p_index < N_ap; p_index++) { for (int p_index = 0; p_index < N_ap; p_index++) {
uint8_t ofdm_symbol = 0;
/* see TS 38.211 6.4.1.4.2 Sequence generation */ /* see TS 38.211 6.4.1.4.2 Sequence generation */
n_SRS_cs_i = (n_SRS_cs + (n_SRS_cs_max * (SRS_antenna_port[p_index] - 1000)/N_ap))%n_SRS_cs_max; n_SRS_cs_i = (n_SRS_cs + (n_SRS_cs_max * (SRS_antenna_port[p_index] - 1000)/N_ap))%n_SRS_cs_max;
@@ -365,22 +367,29 @@ int generate_srs_nr(fapi_nr_ul_config_srs_pdu *srs_config_pdu,
rv_ul_ref_sig[u][v_nu][M_sc_b_SRS_index][2*k+1]); rv_ul_ref_sig[u][v_nu][M_sc_b_SRS_index][2*k+1]);
#endif #endif
txptr[subcarrier] = (real_amp & 0xFFFF) + ((imag_amp<<16)&0xFFFF0000); txptr[subcarrier+ofdm_symbol*frame_parms->ofdm_symbol_size] = (real_amp & 0xFFFF) + ((imag_amp<<16)&0xFFFF0000);
#ifdef SRS_DEBUG #ifdef SRS_DEBUG
if( (subcarrier-frame_parms->first_carrier_offset)%12 == 0 ) { if( (subcarrier+ofdm_symbol*frame_parms->ofdm_symbol_size-frame_parms->first_carrier_offset)%12 == 0 ) {
LOG_I(NR_PHY,"---------- %i ----------\n", (subcarrier-frame_parms->first_carrier_offset)/12); LOG_I(NR_PHY,"------------ %i ------------\n",
(subcarrier+ofdm_symbol*frame_parms->ofdm_symbol_size-frame_parms->first_carrier_offset)/12);
} }
LOG_I(NR_PHY,"(%i)\t%i\t%i\n", subcarrier-frame_parms->first_carrier_offset, real_amp&0xFFFF, imag_amp&0xFFFF); LOG_I(NR_PHY,"(%i) \t%i\t%i\n",
subcarrier+ofdm_symbol*frame_parms->ofdm_symbol_size-frame_parms->first_carrier_offset,
real_amp&0xFFFF,
imag_amp&0xFFFF);
#endif #endif
subcarrier += (K_TC); /* subcarrier increment */ subcarrier += (K_TC); /* subcarrier increment */
if (subcarrier >= frame_parms->ofdm_symbol_size) if (subcarrier >= frame_parms->ofdm_symbol_size) {
subcarrier=subcarrier-frame_parms->ofdm_symbol_size; subcarrier=subcarrier-frame_parms->ofdm_symbol_size;
ofdm_symbol++;
}
} }
/* process next symbol */ /* process next symbol */
txptr = txptr + frame_parms->ofdm_symbol_size; //txptr = txptr + frame_parms->ofdm_symbol_size;
} }
return (0); return (0);