Change pre_precessor_ul type to bool

- To check the current slot is the scheduled slot(UL slot - K2) and
  only execute the post processor in scheduled slot.

openair2/LAYER2/NR_MAC_gNB/gNB_scheduler_phytest.c

@@ -368,7 +368,7 @@ void nr_preprocessor_phytest(module_id_t module_id,
     vrb_map[rb + sched_ctrl->rbStart] = 1;
 }
 
-void nr_ul_preprocessor_phytest(module_id_t module_id,
+bool nr_ul_preprocessor_phytest(module_id_t module_id,
                                 frame_t frame,
                                 sub_frame_t slot,
                                 int num_slots_per_tdd,
@@ -384,7 +384,7 @@ void nr_ul_preprocessor_phytest(module_id_t module_id,
               __func__,
               UE_info->num_UEs);
   if (UE_info->num_UEs == 0)
-    return;
+    return false;
 
   const int UE_id = 0;
   const int CC_id = 0;
@@ -405,7 +405,7 @@ void nr_ul_preprocessor_phytest(module_id_t module_id,
    * limitations).  Note that if K2 or the TDD configuration is changed, below
    * conditions might exclude each other and never be true */
   if (!(is_xlsch_in_slot(ulsch_in_slot_bitmap, sched_slot) && sched_slot == 8))
-    return;
+    return false;
 
   const uint16_t rbStart = 0;
   const uint16_t rbSize = 50; /* due to OAI UE limitations */
@@ -419,7 +419,7 @@ void nr_ul_preprocessor_phytest(module_id_t module_id,
             frame,
             slot,
             i);
-      return;
+      return false;
     }
   }
 
@@ -446,7 +446,7 @@ void nr_ul_preprocessor_phytest(module_id_t module_id,
                                            nr_of_candidates);
   if (sched_ctrl->cce_index < 0) {
     LOG_E(MAC, "%s(): CCE list not empty, couldn't schedule PUSCH\n", __func__);
-    return;
+    return false;
   }
   UE_info->num_pdcch_cand[UE_id][cid]++;
 
@@ -497,4 +497,5 @@ void nr_ul_preprocessor_phytest(module_id_t module_id,
   /* mark the corresponding RBs as used */
   for (int rb = rbStart; rb < rbStart + rbSize; rb++)
     vrb_map_UL[rb] = 1;
+  return true;
 }

openair2/LAYER2/NR_MAC_gNB/gNB_scheduler_ulsch.c

@@ -504,7 +504,7 @@ long get_K2(NR_BWP_Uplink_t *ubwp, int time_domain_assignment, int mu) {
     return 3;
 }
 
-void nr_simple_ulsch_preprocessor(module_id_t module_id,
+bool nr_simple_ulsch_preprocessor(module_id_t module_id,
                                   frame_t frame,
                                   sub_frame_t slot,
                                   int num_slots_per_tdd,
@@ -520,7 +520,7 @@ void nr_simple_ulsch_preprocessor(module_id_t module_id,
               __func__,
               UE_info->num_UEs);
   if (UE_info->num_UEs == 0)
-    return;
+    return false;
 
   const int UE_id = 0;
   const int CC_id = 0;
@@ -537,7 +537,7 @@ void nr_simple_ulsch_preprocessor(module_id_t module_id,
   const int sched_frame = frame + (slot + K2 >= num_slots_per_tdd);
   const int sched_slot = (slot + K2) % num_slots_per_tdd;
   if (!is_xlsch_in_slot(ulsch_in_slot_bitmap, sched_slot))
-    return;
+    return false;
 
   sched_ctrl->sched_pusch.slot = sched_slot;
   sched_ctrl->sched_pusch.frame = sched_frame;
@@ -564,7 +564,7 @@ void nr_simple_ulsch_preprocessor(module_id_t module_id,
                                            nr_of_candidates);
   if (sched_ctrl->cce_index < 0) {
     LOG_D(MAC, "%s(): CCE list not empty, couldn't schedule PUSCH\n", __func__);
-    return;
+    return false;
   }
   UE_info->num_pdcch_cand[UE_id][cid]++;
 
@@ -631,6 +631,7 @@ void nr_simple_ulsch_preprocessor(module_id_t module_id,
   /* mark the corresponding RBs as used */
   for (int rb = 0; rb < sched_ctrl->sched_pusch.rbSize; rb++)
     vrb_map_UL[rb + sched_ctrl->sched_pusch.rbStart] = 1;
+  return true;
 }
 
 void nr_schedule_ulsch(module_id_t module_id,
@@ -645,8 +646,10 @@ void nr_schedule_ulsch(module_id_t module_id,
     LOG_D(MAC, "Current slot %d is NOT DL slot, cannot schedule DCI0 for UL data\n", slot);
     return;
   }
-  RC.nrmac[module_id]->pre_processor_ul(
+  bool do_sched = RC.nrmac[module_id]->pre_processor_ul(
       module_id, frame, slot, num_slots_per_tdd, ulsch_in_slot_bitmap);
+  if (!do_sched)
+    return;
 
   const int CC_id = 0;
   nfapi_nr_ul_dci_request_t *ul_dci_req = &RC.nrmac[module_id]->UL_dci_req[CC_id];

openair2/LAYER2/NR_MAC_gNB/mac_proto.h

@@ -83,7 +83,7 @@ void nr_schedule_ulsch(module_id_t module_id,
                        int ul_slots,
                        uint64_t ulsch_in_slot_bitmap);
 
-void nr_simple_ulsch_preprocessor(module_id_t module_id,
+bool nr_simple_ulsch_preprocessor(module_id_t module_id,
                                   frame_t frame,
                                   sub_frame_t slot,
                                   int num_slots_per_tdd,
@@ -140,7 +140,7 @@ void nr_preprocessor_phytest(module_id_t module_id,
                              sub_frame_t slot);
 /* \brief UL preprocessor for phytest: schedules UE_id 0 with fixed MCS on a
  * fixed set of resources */
-void nr_ul_preprocessor_phytest(module_id_t module_id,
+bool nr_ul_preprocessor_phytest(module_id_t module_id,
                                 frame_t frame,
                                 sub_frame_t slot,
                                 int num_slots_per_tdd,

openair2/LAYER2/NR_MAC_gNB/nr_mac_gNB.h

@@ -511,7 +511,7 @@ typedef struct {
 typedef void (*nr_pp_impl_dl)(module_id_t mod_id,
                               frame_t frame,
                               sub_frame_t slot);
-typedef void (*nr_pp_impl_ul)(module_id_t mod_id,
+typedef bool (*nr_pp_impl_ul)(module_id_t mod_id,
                               frame_t frame,
                               sub_frame_t slot,
                               int num_slots_per_tdd,