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1. (WO2018059401) NETWORK SWITCHING METHOD, DEVICE AND SYSTEM, AND NETWORK ACCESS METHOD AND DEVICE

Pub. No.:    WO/2018/059401    International Application No.:    PCT/CN2017/103504
Publication Date: Fri Apr 06 01:59:59 CEST 2018 International Filing Date: Wed Sep 27 01:59:59 CEST 2017
IPC: H04W 36/00
Applicants: ZTE CORPORATION
中兴通讯股份有限公司
Inventors: LU, Fei
卢飞
Title: NETWORK SWITCHING METHOD, DEVICE AND SYSTEM, AND NETWORK ACCESS METHOD AND DEVICE
Abstract:
Provided are a network switching method, device and system, and a network access method and device. The network switching method comprises: when a user equipment (UE) moves from a first network to a second network, sending network switching information to a control plane entity of the second network, wherein the network switching information at least comprises a packet data network (PDN) type, an access point name (APN) and a service entity identifier corresponding to a service entity accessed by the UE, and the network switching information is used for indicating a service entity selected by the control plane entity of the second network to access, and the service entity comprises: an SCEF and an anchor point GW. By means of the present disclosure, the problem in the related art that a previous used service entity cannot be selected and data is interrupted or service continuity cannot be ensured caused by the fact that a UE uses the same APN is solved.