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1. (WO2018137689) METHOD FOR SECURE DATA TRANSMISSION, ACCESS NETWORK, TERMINAL AND CORE NETWORK DEVICE

Pub. No.:    WO/2018/137689    International Application No.:    PCT/CN2018/074201
Publication Date: Fri Aug 03 01:59:59 CEST 2018 International Filing Date: Fri Jan 26 00:59:59 CET 2018
IPC: H04W 12/02
Applicants: HUAWEI TECHNOLOGIES CO., LTD.
华为技术有限公司
Inventors: LOU, Chong
娄崇
LIU, Xing
刘星
HUANG, Qufang
黄曲芳
ZENG, Qinghai
曾清海
Title: METHOD FOR SECURE DATA TRANSMISSION, ACCESS NETWORK, TERMINAL AND CORE NETWORK DEVICE
Abstract:
A method for secure data transmission, an access network, a terminal and a core network device. The method comprises: a first access network device receiving a request message sent by a terminal device; sending one or more pieces of network slice selection information to a first core network device; receiving a response message sent by the first core network device; sending user-plane security information to the terminal device; and the first access network device receiving encrypted data transmitted by the terminal device, and transmitting the encrypted data to the first core network device. The user-plane security information configured by the first core network device for the terminal device is sent to the terminal device via the first access network device, so that the terminal device performs encryption during data transmission according to the user-plane security information, thereby improving the security and reliability during the data transmission process under a network architecture of network slices. Since the first core network device configures the user-plane security information according to one or more pieces of network slice selection information, the flexibility and security of data encryption are improved.