Method for establishing security association and communication network system

A technology of security association and security algorithm, which is applied in the field of establishing terminal and network security association, can solve problems such as no method for terminal and network security association, many security keys, and inapplicable terminal and network security association, etc., to achieve Increase the complexity of the system and ensure the effect of safety

Active Publication Date: 2012-05-23
HUAWEI TECH CO LTD
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  • Abstract
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  • Claims
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Problems solved by technology

[0010] In the existing LTE system, there are more security keys in the LTE system than in the IEEE 16j system, and the key generation process is more complicated. Therefore, when the LTE system is introduced into the relay station, there is no suitable way to establish a connection between the terminal and the network. The method of security association between the terminal and the network is also not applicable to adopt the security process in the prior art to establish the security association between the terminal and the network

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  • Method for establishing security association and communication network system
  • Method for establishing security association and communication network system
  • Method for establishing security association and communication network system

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no. 1 approach

[0021] refer to figure 2 , to introduce the first embodiment of the present invention, about a method for establishing a security association between a terminal and a network side, and the method is preferentially applied in an LTE evolved system. Specifically include:

[0022] Step 201: Receive the access request message sent by the terminal forwarded by the relay station;

[0023] Step 202: Obtain a shared root key after authenticating the terminal according to the access request message;

[0024] Step 203: Select a security algorithm, the security algorithm is an algorithm supported by the terminal and the network side;

[0025] Step 204: Deriving a base station key according to the shared root key;

[0026] Step 205: Send a security mode command to the terminal through the relay station, where the security mode command includes the security algorithm.

[0027] Through the method provided in this embodiment, after receiving the terminal access request through the relay...

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Abstract

The invention discloses a method for establishing a security association, including the following steps: an access request message sent by a relay station transmitting terminal is received; after the terminal is authenticated and identified according to the access request information, a shared root key is obtained; a safe algorithm supported by the terminal and the network is selected; the base station key is derived according to the shared root key; and a safe mode instruction which includes the safe algorithm is sent to the terminal by the relay station. The invention further discloses a communication network system. The proposal provided by the invention solves the problem about how to establish the safe connection between the terminal and network after the relay-station is introduced in the LTE system and also inherits the security mechanism of LTE, thus ensuring the security and usability of the system without increasing the complexity of the system.

Description

technical field [0001] The present invention relates to the field of wireless communication, in particular to a technology for establishing a security association between a terminal and a network side. Background technique [0002] In order to improve the link budget and the coverage of the cellular system, user terminals can receive services through relay stations. The introduction of relay stations derives new functions of the air interface and further enhances the distributed processing characteristics of the system. The deployment of relay stations can improve the wireless access performance of the system, cover shadow areas, expand the wired coverage radius of base stations, and enhance data rates in specific areas. [0003] In the further evolution after the Long Term Evolution (LTE) system, the wireless access technology itself is strengthened in multiple directions, and the wireless relay station is one of the important directions. Since the relay station is introdu...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W12/02H04W12/04H04W12/10H04W28/18H04B7/14H04W12/041H04W12/06H04W12/106
CPCH04L63/0281H04L63/061H04L63/162
Inventor 徐小英陈璟
Owner HUAWEI TECH CO LTD
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