Abstract: One disclosure of the present specification provides a method whereby a network entity in charge of a control plane communicates routing rules. The method may comprise the steps of: receiving a network-initiated network-based IP flow mobility (NBIFOM) request from user equipment (UE); receiving a setting for a presence report region from a server; determining whether or not the user equipment (UE) has entered a predetermined location on the basis of the setting for the presence report region; communicating information on the presence report region if the user equipment (UE) has entered the predetermined location; receiving routing rules from the server; and communicating the routing rules to the user equipment (UE).

Abstract: One embodiment of the present specification provides a method for selecting or reselecting a relay for a proximity service. The method comprises the steps of: receiving, by user equipment (UE) which is to receive a relay service, synchronization signals from a plurality of other UEs capable of operating as relays; and receiving, by the UE, announce messages from the plurality of other UEs capable of operating as the relays. Here, the announce messages from each of the other UEs can contain relay type information on whether to support a UE-to-network relay service, packet data network (PDN)/access point name (APN) information, and service/group information.