improve nr_slot_fep() and variants

openair1/PHY/MODULATION/modulation_UE.h

@@ -51,16 +51,13 @@ int slot_fep(PHY_VARS_UE *phy_vars_ue,
 int nr_slot_fep(PHY_VARS_NR_UE *phy_vars_ue,
                 UE_nr_rxtx_proc_t *proc,
                 unsigned char l,
-                unsigned char Ns,
-                int sample_offset,
-                int no_prefix);
+                unsigned char Ns);
 
 int nr_slot_fep_init_sync(PHY_VARS_NR_UE *ue,
                           UE_nr_rxtx_proc_t *proc,
                           unsigned char symbol,
                           unsigned char Ns,
-                          int sample_offset,
-                          int no_prefix);
+                          int sample_offset);
 
 int slot_fep_mbsfn(PHY_VARS_UE *phy_vars_ue,
                    unsigned char l,

openair1/PHY/MODULATION/nr_modulation.h

@@ -74,7 +74,6 @@ void nr_ue_layer_mapping(NR_UE_ULSCH_t **ulsch_ue,
 \param symbol symbol within slot (0..12/14)
 \param Ns Slot number (0..19)
 \param sample_offset offset within rxdata (points to beginning of subframe)
-\param no_prefix if 1 prefix is removed by HW
 */
 
 int nr_slot_fep_ul(NR_DL_FRAME_PARMS *frame_parms,
@@ -82,8 +81,7 @@ int nr_slot_fep_ul(NR_DL_FRAME_PARMS *frame_parms,
                    int32_t *rxdataF,
                    unsigned char symbol,
                    unsigned char Ns,
-                   int sample_offset,
-                   int no_prefix);
+                   int sample_offset);
 
 /*!
 \brief This function implements the dft transform precoding in PUSCH

openair1/PHY/NR_UE_TRANSPORT/nr_initial_sync.c

@@ -289,8 +289,7 @@ int nr_initial_sync(UE_nr_rxtx_proc_t *proc, PHY_VARS_NR_UE *ue, int n_frames)
                               proc,
                               i,
                               0,
-                              is*fp->samples_per_frame+ue->ssb_offset,
-                              0);
+                              is*fp->samples_per_frame+ue->ssb_offset);
 
 #ifdef DEBUG_INITIAL_SYNCH
       LOG_I(PHY,"Calling sss detection (normal CP)\n");

openair1/SCHED_NR/nr_ru_procedures.c

@@ -520,8 +520,7 @@ void nr_fep0(RU_t *ru, int first_half) {
                      ru->common.rxdataF[aa],
                      l,
                      proc->tti_rx,
-                     ru->N_TA_offset,
-                     0);
+                     ru->N_TA_offset);
     }
   }
   VCD_SIGNAL_DUMPER_DUMP_FUNCTION_BY_NAME(VCD_SIGNAL_DUMPER_FUNCTIONS_PHY_PROCEDURES_RU_FEPRX+proc->tti_rx, 0);
@@ -657,8 +656,7 @@ void nr_fep_full(RU_t *ru, int slot) {
                      ru->common.rxdataF[aa],
                      l,
                      proc->tti_rx,
-                     ru->N_TA_offset,
-                     0);
+                     ru->N_TA_offset);
     }
   }
 

openair1/SCHED_NR/phy_procedures_nr_gNB.c

@@ -508,15 +508,12 @@ void phy_procedures_gNB_common_RX(PHY_VARS_gNB *gNB, int frame_rx, int slot_rx)
   unsigned char aa;
 
   for(symbol = 0; symbol < (gNB->frame_parms.Ncp==EXTENDED?12:14); symbol++) {
-    // nr_slot_fep_ul(gNB, symbol, proc->slot_rx, 0, 0);
-
     for (aa = 0; aa < gNB->frame_parms.nb_antennas_rx; aa++) {
       nr_slot_fep_ul(&gNB->frame_parms,
                      gNB->common_vars.rxdata[aa],
                      gNB->common_vars.rxdataF[aa],
                      symbol,
                      slot_rx,
-                     0,
                      0);
     }
   }

openair1/SCHED_NR_UE/phy_procedures_nr_ue.c

@@ -1689,9 +1689,7 @@ int phy_procedures_nrUE_RX(PHY_VARS_NR_UE *ue,
       nr_slot_fep(ue,
                   proc,
                   (ue->symbol_offset+i)%(fp->symbols_per_slot),
-                  nr_slot_rx,
-                  0,
-                  0);
+                  nr_slot_rx);
 
 #if UE_TIMING_TRACE
       start_meas(&ue->dlsch_channel_estimation_stats);
@@ -1744,9 +1742,7 @@ int phy_procedures_nrUE_RX(PHY_VARS_NR_UE *ue,
     nr_slot_fep(ue,
                 proc,
                 l,
-                nr_slot_rx,
-                0,
-                0);
+                nr_slot_rx);
 
     dci_cnt = 0;
     for(int n_ss = 0; n_ss<pdcch_vars->nb_search_space; n_ss++) {
@@ -1805,9 +1801,7 @@ int phy_procedures_nrUE_RX(PHY_VARS_NR_UE *ue,
         nr_slot_fep(ue,
                     proc,
                     m,  //to be updated from higher layer
-                    nr_slot_rx,
-                    0,
-                    0);
+                    nr_slot_rx);
       }
     }
   } else {

openair1/SIMULATION/NR_PHY/pbchsim.c

@@ -692,9 +692,7 @@ int main(int argc, char **argv)
           nr_slot_fep(UE,
                       &proc,
                       i%frame_parms->symbols_per_slot,
-                      ssb_slot,
-                      0,
-                      0);
+                      ssb_slot);
 
           nr_pbch_channel_estimation(UE,&proc,0,ssb_slot,i%frame_parms->symbols_per_slot,i-(UE->symbol_offset+1),ssb_index%8,n_hf);