Method and device for selecting packet data network gateway in wireless communication system

摘要

One embodiment of the present invention is a method whereby a network node selects a packet data network gateway (P-GW) in a wireless communication system, the method for selecting a P-GW comprising the steps of: receiving, from user equipment, an attach request including information on a group; determining whether or not the attach request is a first request from the group; and selecting a P-GW to perform a policy and charging enforcement function (PCEF) on the group including the user equipment, wherein the selected P-GW is the same P-GW selected for the group in case the attach request is a third or later request from the group.

主权项

1. A method for selecting a packet data network gateway (P-GW) by a network node in a wireless communication system, the method comprising:
receiving, from a terminal, an attach request including a machine type communication (MTC) group identifier, determining whether the attach request is a first attach request for an MTC group identified by the MTC group identifier, wherein the MTC group is configured for MTC terminals; and selecting the P-GW to perform a function of a policy and charging enforcement function (PCEF) on the MTC group including the terminal, wherein, when the attach request is the first attach request for the MTC group, the network node transmits information on the selected P-GW to a Home Subscriber Server (HSS) for registration, and wherein, when the attach request is a second attach request or a later attach request for the MTC group, the selected P-GW is set to a pre-selected P-GW for the MTC group.