beamforming weights modification

openair1/PHY/LTE_TRANSPORT/dlsch_modulation.c

@@ -918,10 +918,10 @@ break;
 
               //printf("%d(%d) : %d,%d => ",tti_offset,*jj,((int16_t*)&tmp_sample1)[0],((int16_t*)&tmp_sample1)[1]);
               for (aa=0; aa<nb_antennas_tx_phy; aa++) {
-                ((int16_t*)&txdataF[aa][tti_offset])[0] += (int16_t)((((int16_t*)&tmp_sample1)[0]*((uint16_t*)&beamforming_weights[re][aa])[0])>>15);
-                ((int16_t*)&txdataF[aa][tti_offset])[0] +=-(int16_t)((((int16_t*)&tmp_sample1)[1]*((uint16_t*)&beamforming_weights[re][aa])[1])>>15);
-                ((int16_t*)&txdataF[aa][tti_offset])[1] += (int16_t)((((int16_t*)&tmp_sample1)[0]*((uint16_t*)&beamforming_weights[re][aa])[1])>>15);
-                ((int16_t*)&txdataF[aa][tti_offset])[1] += (int16_t)((((int16_t*)&tmp_sample1)[1]*((uint16_t*)&beamforming_weights[re][aa])[0])>>15);
+                ((int16_t*)&txdataF[aa][tti_offset])[0] += (int16_t)((((int16_t*)&tmp_sample1)[0]*((int16_t*)&beamforming_weights[re][aa])[0])>>15);
+                ((int16_t*)&txdataF[aa][tti_offset])[0] +=-(int16_t)((((int16_t*)&tmp_sample1)[1]*((int16_t*)&beamforming_weights[re][aa])[1])>>15);
+                ((int16_t*)&txdataF[aa][tti_offset])[1] += (int16_t)((((int16_t*)&tmp_sample1)[0]*((int16_t*)&beamforming_weights[re][aa])[1])>>15);
+                ((int16_t*)&txdataF[aa][tti_offset])[1] += (int16_t)((((int16_t*)&tmp_sample1)[1]*((int16_t*)&beamforming_weights[re][aa])[0])>>15);
               }
 
               //printf("%d,%d\n",((int16_t*)&txdataF[0][tti_offset])[0],((int16_t*)&txdataF[0][tti_offset])[1]);

openair1/SIMULATION/LTE_PHY/dlsim.c

@@ -752,7 +752,8 @@ int main(int argc, char **argv)
     for(re=0;re<12*N_RB_DL;re++){
       beamforming_weights[re]=(int32_t *)malloc(n_tx_phy*sizeof(int32_t));
       for(aa=0;aa<n_tx_phy;aa++)
-	beamforming_weights[re][aa] = 0x00008000;
+	//beamforming_weights[re][aa] = 0x00008000;
+	beamforming_weights[re][aa] = 0x00007fff;
     }
   }
 
@@ -3115,6 +3116,13 @@ PMI_FEEDBACK:
                                 eNB2UE[round]->chF[aarx+(aa*frame_parms->nb_antennas_rx)][i].x*AMP);
                           ((int16_t *) PHY_vars_UE->lte_ue_common_vars.dl_ch_estimates[k][(aa<<1)+aarx])[2*i+1+((l+(Ns%2)*pilot2)*frame_parms->ofdm_symbol_size+LTE_CE_FILTER_LENGTH)*2]=(int16_t)(
                                 eNB2UE[round]->chF[aarx+(aa*frame_parms->nb_antennas_rx)][i].y*AMP);
+
+                          if (transmission_mode == 7){
+                            ((int16_t *)PHY_vars_UE->lte_ue_pdsch_vars[0]->dl_bf_ch_estimates[(aa<<1)+aarx])[2*i+((l+(Ns%2)*pilot2)*frame_parms->ofdm_symbol_size)*2]=(int16_t)(
+                                eNB2UE[round]->chF[aarx+(aa*frame_parms->nb_antennas_rx)][i].x*AMP);
+                            ((int16_t *)PHY_vars_UE->lte_ue_pdsch_vars[0]->dl_bf_ch_estimates[(aa<<1)+aarx])[2*i+1+((l+(Ns%2)*pilot2)*frame_parms->ofdm_symbol_size)*2]=(int16_t)(
+                                eNB2UE[round]->chF[aarx+(aa*frame_parms->nb_antennas_rx)][i].y*AMP);
+                          }
                         }
                       }
                     }