Add implementation to trigger BWP switch from external source

openair2/LAYER2/NR_MAC_gNB/config.c

@@ -1065,6 +1065,24 @@ bool nr_update_sib19(const gnb_sat_position_update_t *sat_position)
   return true;
 }
 
+bool nr_trigger_bwp_switch(uint16_t rnti, int bwp_id)
+{
+  gNB_MAC_INST *nrmac = RC.nrmac[0];
+  NR_SCHED_LOCK(&nrmac->sched_lock);
+  NR_UE_info_t *UE = find_nr_UE(&nrmac->UE_info, rnti);
+  bool success = false;
+  if (!UE) {
+    LOG_W(NR_MAC, "could not find UE for RNTI %04x\n", rnti);
+  } else if (UE->current_DL_BWP.bwp_id == bwp_id) {
+    LOG_W(NR_MAC, "UE %04x is already on BWP ID %d, not triggering reconfiguration\n", rnti, bwp_id);
+  } else { // UE != NULL && current_DL_BWP.bwp_id != bwp_id
+    nr_mac_trigger_reconfiguration(nrmac, UE, bwp_id);
+    success = true;
+  }
+  NR_SCHED_UNLOCK(&nrmac->sched_lock);
+  return success;
+}
+
 void prepare_du_configuration_update(gNB_MAC_INST *mac,
                                      f1ap_served_cell_info_t *info,
                                      NR_BCCH_BCH_Message_t *mib,

openair2/LAYER2/NR_MAC_gNB/mac_config.h

@@ -43,4 +43,6 @@ typedef struct gnb_sat_position_update_s {
 
 bool nr_update_sib19(const gnb_sat_position_update_t *sat_position);
 
+bool nr_trigger_bwp_switch(uint16_t rnti, int bwp_id);
+
 #endif /*__LAYER2_NR_MAC_CONFIG_H__*/