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1. (WO2018157322) LAWFUL INTERCEPTION METHOD, DEVICE, AND SYSTEM

Pub. No.:    WO/2018/157322    International Application No.:    PCT/CN2017/075279
Publication Date: Sat Sep 08 01:59:59 CEST 2018 International Filing Date: Wed Mar 01 00:59:59 CET 2017
IPC: H04M 3/22
H04L 29/00
Applicants: HUAWEI TECHNOLOGIES CO., LTD.
华为技术有限公司
Inventors: CAO, Longyu
曹龙雨
XIA, Yuan
夏渊
SUN, Xiaodong
孙晓东
ZHOU, Junping
周军平
Title: LAWFUL INTERCEPTION METHOD, DEVICE, AND SYSTEM
Abstract:
Disclosed in the present application are a lawful interception method, device, and system, relating to the field of communication technologies, being able to solve the problem that a lawful interception center cannot lawfully intercept local shunting service data of user equipment. The method comprises: a centralized gateway apparatus receiving an interception indication sent by a lawful interception gateway apparatus, the interception indication carrying the identifier of the user equipment to be intercepted; the centralized gateway apparatus sending a shunting closure indication to the remote gateway apparatus, the shunting closure indication being used for informing the remote gateway apparatus to close the local shunting function of the user equipment, and the centralized gateway apparatus receiving the service data of the user equipment sent by the remote gateway apparatus, and reporting same to the lawful interception center. The present application is applicable to the process of performing lawful interception of user equipment.