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1. (WO2018006650) METHOD, DEVICE, AND SYSTEM FOR IMPLEMENTING SESSION CONTINUITY

Pub. No.:    WO/2018/006650    International Application No.:    PCT/CN2017/084009
Publication Date: Fri Jan 12 00:59:59 CET 2018 International Filing Date: Fri May 12 01:59:59 CEST 2017
IPC: H04L 29/08
Applicants: ZTE CORPORATION
中兴通讯股份有限公司
Inventors: ZHOU, Xiaoyun
周晓云
ZHU, Jinguo
朱进国
Title: METHOD, DEVICE, AND SYSTEM FOR IMPLEMENTING SESSION CONTINUITY
Abstract:
The invention provides a method, device and system for implementing session continuity. The method comprises: sending indication information to a terminal, wherein the indication information is used to indicate that a first protocol data unit (PDU) session is a redirected session of a second PDU session, and the first PDU session is established when the terminal determines that the established second PDU session needs to be redirected to a terminating user-plane function (TUPF) and sends an establishment request to a network side device. According to the technical solution, a problem in the prior art in which a terminal cannot determine which PDU session is a redirection of a newly established PDU session is resolved, and further the terminal can determine according to the instruction information which PDU session is a redirection of the newly established PDU session.