Patent ID: 9743286
Date: 2017-08-22
CPC Classifications: H04W

Claim:
1. A device which is included in a control-plane node in a mobile communication system of control-plane and user-plane splitting, comprising: a transceiver that communicates with at least one user-plane node; and at least one processor configured to execute a set of instructions, comprising: when an occasion for relocation arises, send a request for communication state information to a user-plane node through which a user data communication between a mobile terminal and a packet network gateway that is an anchor for ensuring mobility of the mobile terminal is made; acquire the communication state information of the user data communication from a response to the request; determine whether the user data communication is being used as an important communication, based on a use state of the user data communication obtained from the communication state information; and determine whether or not to perform the relocation of a functionality of the packet network gateway to another packet network gateway, depending on whether the user data communication is being used as the important communication.