Correction for first OFDM symbol estimation and compensation

- Direct multiply with the conjugate of the estimation for compensation

openair1/PHY/NR_ESTIMATION/nr_ul_channel_estimation.c

@@ -605,12 +605,6 @@ void nr_pusch_ptrs_processing(PHY_VARS_gNB *gNB,
                              gNB->nr_gold_pusch_dmrs[rel15_ul->scid][nr_tti_rx][symbol],
                              &phase_per_symbol[2* symbol],
                              ptrs_re_symbol);
-      /* if very first symbol is PTRS then we need to undo conjugate done in estimation */
-      /* The PTRS estimation before DMRS symbol is pure error, shall be used as it is*/
-      if(symbol == *startSymbIndex)
-      {
-        phase_per_symbol[(2* symbol)+1] = (-1) * phase_per_symbol[(2* symbol)+1];
-      }
     }
     /* For last OFDM symbol at each antenna perform interpolation and compensation for the slot*/
     if(symbol == (symbInSlot -1))

openair1/PHY/NR_UE_ESTIMATION/nr_dl_channel_estimation.c

@@ -1072,12 +1072,6 @@ void nr_pdsch_ptrs_processing(PHY_VARS_NR_UE *ue,
                                ue->nr_gold_pdsch[eNB_id][nr_tti_rx][symbol],
                                &phase_per_symbol[2* symbol],
                                &ptrs_re_symbol[symbol]);
-        /* if very first symbol is PTRS then we need to undo conjugate done in estimation */
-        /* The PTRS estimation before DMRS symbol is pure error, shall be used as it is*/
-        if(symbol == *startSymbIndex)
-        {
-          phase_per_symbol[(2* symbol)+1] = (-1) * phase_per_symbol[(2* symbol)+1]; 
-        }
       }
     }// HARQ 0