Fix for filling vrb_map for ssb

The SSB nFAPI message is only sent every 8 frames, and automatically
repeated by the PHY layer in between. This commit sets the vrb_map
structure in those frames in between nFAPI so that the scheduler does
not schedule on such resources.

openair2/LAYER2/NR_MAC_gNB/gNB_scheduler.c

@@ -447,9 +447,7 @@ void gNB_dlsch_ulsch_scheduler(module_id_t module_idP,
   if ((slot == 0) && (frame & 127) == 0) dump_mac_stats(RC.nrmac[module_idP]);
 
   // This schedules MIB
-  if((slot == 0) && (frame & 7) == 0){
-    schedule_nr_mib(module_idP, frame, slot);
-  }
+  schedule_nr_mib(module_idP, frame, slot, slots_per_frame[*scc->ssbSubcarrierSpacing]);
 
   // This schedule PRACH if we are not in phy_test mode
   if (get_softmodem_params()->phy_test == 0)

openair2/LAYER2/NR_MAC_gNB/mac_proto.h

@@ -86,7 +86,7 @@ void nr_simple_dlsch_preprocessor(module_id_t module_id,
                                   sub_frame_t slot,
                                   int num_slots_per_tdd);
 
-void schedule_nr_mib(module_id_t module_idP, frame_t frameP, sub_frame_t subframeP);
+void schedule_nr_mib(module_id_t module_idP, frame_t frameP, sub_frame_t subframeP, uint8_t slots_per_frame);
 
 /////// Random Access MAC-PHY interface functions and primitives ///////
 
@@ -374,6 +374,8 @@ int binomial(int n, int k);
 
 bool is_xlsch_in_slot(uint64_t bitmap, sub_frame_t slot);
 
+void fill_ssb_vrb_map (NR_COMMON_channels_t *cc, int rbStart, int CC_id);
+
 
 /* \brief Function to indicate a received SDU on ULSCH.
 @param Mod_id Instance ID of gNB