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1. (WO2018103655) METHOD OF ACCESSING NETWORK APPARATUS, TERMINAL APPARATUS THEREOF, AND NETWORK APPARATUS

Pub. No.:    WO/2018/103655    International Application No.:    PCT/CN2017/114765
Publication Date: Fri Jun 15 01:59:59 CEST 2018 International Filing Date: Thu Dec 07 00:59:59 CET 2017
IPC: H04W 12/06
Applicants: HUAWEI TECHNOLOGIES CO., LTD.
华为技术有限公司
Inventors: YANG, Zhengjie
杨铮杰
ZENG, Xin
曾信
Title: METHOD OF ACCESSING NETWORK APPARATUS, TERMINAL APPARATUS THEREOF, AND NETWORK APPARATUS
Abstract:
The embodiment of the invention provides a terminal apparatus. The terminal apparatus receives a system message transmitted from a base station controller, determines according to the system message that the terminal apparatus has permission to access a first cell, and performs, when accessing the first cell, network authentication, wherein the first cell is a cell supporting bidirectional authentication. The terminal apparatus further transmits an uplink authentication request message to a core network apparatus, wherein the uplink authentication request message is used to notify the core network apparatus of performing authentication on the terminal apparatus. Upon receiving a downlink authentication request message transmitted from the core network apparatus, the terminal apparatus further performs network authentication on a target cell in the first cell to determine whether to access the target cell. In the embodiment of the invention, the terminal apparatus is instructed to only access a cell supporting the bidirectional authentication, and to perform the network authentication on the target cell to be accessed to determine whether the network is accessible, thereby preventing a fake base station from performing a network attack on the network.