Perform timing sync adjustment in subframe 5 instead of 6

Subframe 6 may be an MBMS subframe, and timing sync does not (yet) work on MBMS subframes.

This commit was developed at Fraunhofer IIS (https://www.iis.fraunhofer.de).

openair1/PHY/LTE_ESTIMATION/lte_adjust_sync.c

@@ -81,7 +81,7 @@ void lte_adjust_synch(LTE_DL_FRAME_PARMS *frame_parms,
   // do not filter to have proactive timing adjustment
   max_pos_fil = max_pos;
 
-  if(subframe == 6)
+  if(subframe == 5)
   {
       diff = max_pos_fil - (frame_parms->nb_prefix_samples>>3);
 

openair1/PHY/LTE_ESTIMATION/lte_adjust_sync_ue.c

@@ -82,7 +82,7 @@ void lte_adjust_synch(LTE_DL_FRAME_PARMS *frame_parms,
   // do not filter to have proactive timing adjustment
   max_pos_fil = max_pos;
 
-  if(subframe == 6)
+  if(subframe == 5)
   {
       diff = max_pos_fil - (frame_parms->nb_prefix_samples>>3);