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1. (WO2017157333) PAGING METHOD AND COMMUNICATION SYSTEM

Pub. No.:    WO/2017/157333    International Application No.:    PCT/CN2017/077116
Publication Date: Fri Sep 22 01:59:59 CEST 2017 International Filing Date: Sat Mar 18 00:59:59 CET 2017
IPC: H04W 24/04
Applicants: ZTE CORPORATION
中兴通讯股份有限公司
Inventors: LIU, Helun
刘合伦
Title: PAGING METHOD AND COMMUNICATION SYSTEM
Abstract:
A paging method and a communication system. When a user terminal successfully performs joint registration, the registration mobility management entity updates location information of the use terminal to a visitor location register, and sends the location information of the use terminal to a standby mobility management entity set for the user terminal, so as to perform backup. When the user terminal has a mobile terminated (MT CS) service and the current registration mobility management entity of the user terminal has a fault or is out of service, the visitor location register initiates a paging request to the standby mobility management entity. The standby mobility management entity can initiate a paging to the use terminal according the previously-stored location information of the user terminal.