METHOD, DEVICE AND SYSTEM FOR UPDATING PACKET DATA NETWORK GATEWAY INFORMATION

摘要

The present invention discloses a method, device and system for updating Packet Data Network Gateway (P-GW) information. Said method comprises: when the mobile management protocol type of a mobile terminal device is connecting to the evolved packet data core network through dual stack mobile management protocol technology, a Home Subscriber Server cancels the updating for the P-GW information of the mobile terminal device at Authentication Authorization Accounting server. By employing the present invention, the synchronization efficiency of the present P-GW is improved.