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1. (WO2017157290) INTERCEPTION METHOD, CORE NETWORK DEVICE AND BASE STATION

Pub. No.:    WO/2017/157290    International Application No.:    PCT/CN2017/076693
Publication Date: Fri Sep 22 01:59:59 CEST 2017 International Filing Date: Thu Mar 16 00:59:59 CET 2017
IPC: H04W 24/08
H04W 28/12
Applicants: BAICELLS TECHNOLOGIES CO. LTD.
北京佰才邦技术有限公司
Inventors: WU, Yanguang
吴艳光
Title: INTERCEPTION METHOD, CORE NETWORK DEVICE AND BASE STATION
Abstract:
Provided are an interception method, a core network device and a base station. The method is applied to a scenario of traffic offload at a local gateway. The method comprises: acquiring an interception command; determining whether an intercepted user is a local traffic offload user according to an identifier of the intercepted user; if so, sending a first notification message to a base station to which the intercepted user belongs, so that the intercepted user is attached again; and after receiving an attachment message, sent by the base station, of the intercepted user, setting the intercepted user to be a non-local traffic offload user, so that a legitimate interception device intercepts traffic data of the intercepted user. The present application achieves the legitimate interception of user data under an LBO scenario by returning data traffic of an intercepted user to a core network.