Therefore, in accordance with one aspect of the technology disclosed herein, to determine whether or not a triggering event is occurring (e.g., whether a triggering condition is met/satisfied), the IAB-node 20, e.g., the MT part 70 of the IAB-node 30 of FIG. 22, may treat or consider a notification message indicating parent node's upstream RLF event as if the RLF were occurring at the immediate upstream link for the IAB-node itself and thereby, as herein explained, facilitate possible conditional handover.
In order to do so the handover controller 96(22) of FIG. 22 is configured to make a determination of whether or not to execute a handover based on both the conditional handover configuration message and the notification received from the parent node. For example, the handover controller 96(22) of FIG. 22 may make the determination of whether or not to execute a handover based on both a triggering condition, received in the conditional handover configuration message, and the information representing the radio condition which is received in the notification from the wireless relay node. To this end, FIG. 22 shows handoff controller 96(22) as comprising an evaluation unit or a comparison unit 97 which compares information 98 representing the triggering condition and information 99 representing the radio condition.
