added visualization of PDCCH channel estimate to phy_scope_UE.

openair1/PHY/TOOLS/nr_phy_scope.c

@@ -498,10 +498,8 @@ void phy_scope_UE(FD_lte_phy_scope_ue *form,
   float **rxsig_t_dB;
   float *time;
   float *corr;
-  /*
   int16_t **chest_t;
   int16_t **chest_f;
-  */
   int16_t *pdsch_llr;
   int16_t *pdsch_comp;
   //int16_t *pdsch_mag;
@@ -519,10 +517,13 @@ void phy_scope_UE(FD_lte_phy_scope_ue *form,
   int coded_bits_per_codeword = num_re*Qm;
   int symbol, first_symbol,nb_re;
   int nb_rb_pdsch =50;
+  float ymax=1;
+  float **chest_t_abs;
+  float Re,Im;
+  float *chest_f_abs;
+  float *freq;
+  static int overlay = 0;
   /*
-  float Re,Im,ymax=1;
-  float **chest_t_abs, *chest_f_abs;
-  float freq[nsymb_ce*nb_antennas_rx*nb_antennas_tx];
   int frame = phy_vars_ue->proc.proc_rxtx[0].frame_rx;
   int mcs = 0;
   unsigned char harq_pid = 0;
@@ -565,15 +566,15 @@ void phy_scope_UE(FD_lte_phy_scope_ue *form,
   */
   I = (float*) calloc(frame_parms->ofdm_symbol_size*frame_parms->symbols_per_slot*2,sizeof(float));
   Q = (float*) calloc(frame_parms->ofdm_symbol_size*frame_parms->symbols_per_slot*2,sizeof(float));
-  /*
+
   chest_t_abs = (float**) malloc(nb_antennas_rx*sizeof(float*));
 
   for (arx=0; arx<nb_antennas_rx; arx++) {
     chest_t_abs[arx] = (float*) calloc(frame_parms->ofdm_symbol_size,sizeof(float));
   }
 
-  chest_f_abs = (float*) calloc(nsymb_ce*nb_antennas_rx*nb_antennas_tx,sizeof(float));
-  */
+  chest_f_abs = (float*) calloc(frame_parms->ofdm_symbol_size,sizeof(float));
+  freq = (float*) calloc(frame_parms->ofdm_symbol_size,sizeof(float));
 
   llr = (float*) calloc(coded_bits_per_codeword,sizeof(float)); // init to zero
   bit = malloc(coded_bits_per_codeword*sizeof(float));
@@ -589,10 +590,9 @@ void phy_scope_UE(FD_lte_phy_scope_ue *form,
   time = calloc(samples_per_frame,sizeof(float));
   corr = calloc(samples_per_frame,sizeof(float));
 
-  /*
   chest_t = (int16_t**) phy_vars_ue->common_vars.common_vars_rx_data_per_thread[phy_vars_ue->current_thread_id[subframe]].dl_ch_estimates_time[eNB_id];
   chest_f = (int16_t**) phy_vars_ue->common_vars.common_vars_rx_data_per_thread[phy_vars_ue->current_thread_id[subframe]].dl_ch_estimates[eNB_id];
-  */
+
   pbch_llr = (int16_t*) phy_vars_ue->pbch_vars[eNB_id]->llr;
   pbch_comp = (int16_t*) phy_vars_ue->pbch_vars[eNB_id]->rxdataF_comp[0];
 
@@ -639,18 +639,26 @@ void phy_scope_UE(FD_lte_phy_scope_ue *form,
 	  fl_set_xyplot_data(form->chest_t,time,corr,samples_per_frame,"","","");
 	else
 	  fl_add_xyplot_overlay(form->chest_t,ind,time,corr,samples_per_frame,rx_antenna_colors[ind]);
+
+	overlay = 1;
       }
     }
   } 
+  else {
 	
-  /*
-  // Channel Impulse Response (still repeated format)
+  if (overlay) { //there was a previous overlay
+    fl_clear_xyplot(form->chest_t);
+    overlay = 0;
+  }
+
+  // Channel Impulse Response
   if (chest_t != NULL) {
     ymax = 0;
 
     if (chest_t[0] !=NULL) {
       for (i=0; i<(frame_parms->ofdm_symbol_size>>3); i++) {
-        chest_t_abs[0][i] = (float) (chest_t[0][4*i]*chest_t[0][4*i]+chest_t[0][4*i+1]*chest_t[0][4*i+1]);
+        chest_t_abs[0][i] = (float) (chest_t[0][2*i]*chest_t[0][2*i]+chest_t[0][2*i+1]*chest_t[0][2*i+1]);
+	time[i] = (float) i;
 
         if (chest_t_abs[0][i] > ymax)
           ymax = chest_t_abs[0][i];
@@ -658,7 +666,7 @@ void phy_scope_UE(FD_lte_phy_scope_ue *form,
 
       fl_set_xyplot_data(form->chest_t,time,chest_t_abs[0],(frame_parms->ofdm_symbol_size>>3),"","","");
     }
-
+    /*
     for (arx=1; arx<nb_antennas_rx; arx++) {
       if (chest_t[arx] !=NULL) {
         for (i=0; i<(frame_parms->ofdm_symbol_size>>3); i++) {
@@ -672,11 +680,12 @@ void phy_scope_UE(FD_lte_phy_scope_ue *form,
         fl_set_xyplot_overlay_type(form->chest_t,arx,FL_DASHED_XYPLOT);
       }
     }
-
+    */
     // Avoid flickering effect
     //        fl_get_xyplot_ybounds(form->chest_t,&ymin,&ymax); // Does not always work...
     fl_set_xyplot_ybounds(form->chest_t,0,(double) ymax);
   }
+  }
 
   // Channel Frequency Response (includes 5 complex sample for filter)
   if (chest_f != NULL) {
@@ -685,7 +694,7 @@ void phy_scope_UE(FD_lte_phy_scope_ue *form,
     for (atx=0; atx<nb_antennas_tx; atx++) {
       for (arx=0; arx<nb_antennas_rx; arx++) {
         if (chest_f[(atx<<1)+arx] != NULL) {
-          for (k=0; k<nsymb_ce; k++) {
+          for (k=0; k<frame_parms->ofdm_symbol_size; k++) {
             freq[ind] = (float)ind;
             Re = (float)(chest_f[(atx<<1)+arx][(2*k)]);
             Im = (float)(chest_f[(atx<<1)+arx][(2*k)+1]);
@@ -698,12 +707,13 @@ void phy_scope_UE(FD_lte_phy_scope_ue *form,
     }
 
     // tx antenna 0
-    fl_set_xyplot_xbounds(form->chest_f,0,nb_antennas_rx*nb_antennas_tx*nsymb_ce);
+    //fl_set_xyplot_xbounds(form->chest_f,0,nb_antennas_rx*nb_antennas_tx*nsymb_ce);
     //fl_set_xyplot_xtics(form->chest_f,nb_antennas_rx*nb_antennas_tx*frame_parms->symbols_per_tti,2);
     //        fl_set_xyplot_xtics(form->chest_f,nb_antennas_rx*nb_antennas_tx*2,2);
-    fl_set_xyplot_xgrid(form->chest_f,FL_GRID_MAJOR);
-    fl_set_xyplot_data(form->chest_f,freq,chest_f_abs,nsymb_ce,"","","");
+    //fl_set_xyplot_xgrid(form->chest_f,FL_GRID_MAJOR);
+    fl_set_xyplot_data(form->chest_f,freq,chest_f_abs,frame_parms->ofdm_symbol_size,"","","");
 
+    /*
     for (arx=1; arx<nb_antennas_rx; arx++) {
       fl_add_xyplot_overlay(form->chest_f,1,&freq[arx*nsymb_ce],&chest_f_abs[arx*nsymb_ce],nsymb_ce,rx_antenna_colors[arx]);
     }
@@ -722,8 +732,8 @@ void phy_scope_UE(FD_lte_phy_scope_ue *form,
         fl_add_xyplot_overlay(form->chest_f,atx,&freq[atx*nsymb_ce],&chest_f_abs[atx*nsymb_ce],nsymb_ce,rx_antenna_colors[arx]);
       }
     }
-  }
     */
+  }
   
   // PBCH LLRs
   if (pbch_llr != NULL) {
@@ -735,9 +745,6 @@ void phy_scope_UE(FD_lte_phy_scope_ue *form,
     fl_set_xyplot_data(form->pbch_llr,bit_pbch,llr_pbch,864,"","","");
   }
 
-  if (phy_vars_ue->is_synchronized==1)
-    first_symbol=5;
-  else
   first_symbol=1;
 
   // PBCH I/Q of MF Output

targets/RT/USER/nr-ue.c

@@ -602,7 +602,7 @@ static void *UE_thread_synch(void *arg) {
 	  
 	  phy_scope_UE(form_ue[0],
 		       PHY_vars_UE_g[0][0],
-		       0,0,7);
+		       0,0,1);
 	}
 #endif