Correct error for 20 MHz execution

openair1/PHY/INIT/lte_parms.c

@@ -56,13 +56,15 @@ int init_frame_parms(LTE_DL_FRAME_PARMS *frame_parms,uint8_t osf)
     frame_parms->symbols_per_tti = 12;
     // Only numerology 2 is supported for Extended Cyclic Prefix
     frame_parms->numerology_index = 2;
-    frame_parms->ttis_per_subframe = 4;
+    frame_parms->ttis_per_subframe = 1;
     frame_parms->slots_per_tti = 2; //only slot config 1 is supported
   } else {
     frame_parms->nb_prefix_samples0 = 160;
     frame_parms->nb_prefix_samples = 144;
     frame_parms->symbols_per_tti = 14;
-      
+    frame_parms->numerology_index = 0;
+    frame_parms->ttis_per_subframe = 1;
+    frame_parms->slots_per_tti = 2; //only slot config 1 is supported      
   }
 
 

openair1/PHY/LTE_ESTIMATION/lte_dl_channel_estimation.c

@@ -665,9 +665,9 @@ int lte_dl_channel_estimation(PHY_VARS_UE *ue,
 
                 uint8_t previous_tti;
                 if(Ns>>1 == 0)
-                    previous_tti = 10*ue->frame_parms.ttis_per_subframe-1;
+                    previous_tti = LTE_NUMBER_OF_SUBFRAMES_PER_FRAME*ue->frame_parms.ttis_per_subframe-1;
                 else
-                    previous_tti = ((Ns>>1) - 1 )%(ue->frame_parms.ttis_per_subframe-1);
+                    previous_tti = ((Ns>>1) - 1 )%(LTE_NUMBER_OF_SUBFRAMES_PER_FRAME*ue->frame_parms.ttis_per_subframe-1);
 
                 if((subframe_select(&ue->frame_parms,previous_tti) == SF_UL))
                 {