taking into account n_ta_offset in slot fep ul

openair1/PHY/MODULATION/slot_fep_nr.c

@@ -394,12 +394,13 @@ int nr_slot_fep_ul(NR_DL_FRAME_PARMS *frame_parms,
                    int sample_offset,
                    int no_prefix)
 {
-  uint32_t slot_offset;
-  uint32_t rxdata_offset;
+  int32_t slot_offset, rxdata_offset;
 
   unsigned int nb_prefix_samples  = (no_prefix ? 0 : frame_parms->nb_prefix_samples);
   unsigned int nb_prefix_samples0 = (no_prefix ? 0 : frame_parms->nb_prefix_samples0);
   
+  int tmp_dft_in[8192] __attribute__ ((aligned (32)));
+
   void (*dft)(int16_t *,int16_t *, int);
 
   switch (frame_parms->ofdm_symbol_size) {
@@ -442,13 +443,25 @@ int nr_slot_fep_ul(NR_DL_FRAME_PARMS *frame_parms,
   
   slot_offset   = frame_parms->get_samples_slot_timestamp(Ns,frame_parms,0);
 
-  
   if(symbol == 0)
     rxdata_offset = slot_offset + nb_prefix_samples0 - SOFFSET;
   else
     rxdata_offset = slot_offset + nb_prefix_samples0 + (symbol * (frame_parms->ofdm_symbol_size + nb_prefix_samples)) - SOFFSET;
 
-  dft((int16_t *)&rxdata[rxdata_offset],
+  if(sample_offset>rxdata_offset) {
+    memcpy((void *)tmp_dft_in,
+           (void *) &rxdata[frame_parms->samples_per_frame-sample_offset+rxdata_offset],
+           (sample_offset-rxdata_offset)*sizeof(int));
+
+    memcpy((void *)&tmp_dft_in[sample_offset-rxdata_offset],
+           (void *) &rxdata[0],
+           (frame_parms->ofdm_symbol_size-sample_offset+rxdata_offset)*sizeof(int));
+
+    dft((int16_t *)&tmp_dft_in,
+        (int16_t *)&rxdataF[symbol * frame_parms->ofdm_symbol_size], 1);
+  }
+  else
+    dft((int16_t *)&rxdata[rxdata_offset-sample_offset],
         (int16_t *)&rxdataF[symbol * frame_parms->ofdm_symbol_size], 1);
 
   return(0);

openair1/SCHED_NR/nr_ru_procedures.c

@@ -520,7 +520,7 @@ void nr_fep0(RU_t *ru, int first_half) {
                      ru->common.rxdataF[aa],
                      l,
                      proc->tti_rx,
-                     0,
+                     ru->N_TA_offset,
                      0);
     }
   }
@@ -642,6 +642,8 @@ void nr_fep_full(RU_t *ru, int slot) {
   // if ((fp->frame_type == TDD) && 
      // (subframe_select(fp,proc->tti_rx) != NR_UPLINK_SLOT)) return;
 
+  LOG_D(PHY,"In fep_full for slot = %d\n", proc->tti_rx);
+
   start_meas(&ru->ofdm_demod_stats);
   if (ru->idx == 0) VCD_SIGNAL_DUMPER_DUMP_FUNCTION_BY_NAME( VCD_SIGNAL_DUMPER_FUNCTIONS_PHY_PROCEDURES_RU_FEPRX, 1 );
 
@@ -655,7 +657,7 @@ void nr_fep_full(RU_t *ru, int slot) {
                      ru->common.rxdataF[aa],
                      l,
                      proc->tti_rx,
-                     0,
+                     ru->N_TA_offset,
                      0);
     }
   }