3G customer fast roaming authentication method based on wireless LAN

Abstract

The invention provides a 3G user quick roaming authentication method based on a wireless local area network, belonging to the field of wireless communication. The method comprises the steps as follows: a user entity and a new access network establish a connection; the new access network gains the identity authentication information; subsequently, the old access network verifies the new access network and the identity of the user entity; finally, the new access network authenticates the user entity. The invention provides a quick roaming authentication method aiming at a 3G-WLAN Internet, leads the 3G mobile users to be quicker and safer to shift the roaming in access networks, and realizes the bidirectional authentication between the user entity and the 3G wireless access network at the same time; therefore the Re-direction attack behavior is withstood by the entity verification to the access network,; furthermore, the method effectively reduces the transmission delay of the message during the authentication process, improves the safety and efficiency of the access process of the 3G and heterogeneous internetworking network, and facilitates the mobile users to share smoother mobile services.

Description

technical field [0001] The invention belongs to the field of wireless communication, and in particular relates to a fast roaming authentication method for 3G users based on a wireless local area network. Background technique [0002] With the development and popularization of the global communication industry, 3G wireless network has gradually become the mainstream of new technology in the market. Its characteristics include a wide network coverage, the ability to provide services such as voice, data and multimedia, and a strong roaming function, but the transmission rate is low. Wireless networks such as WLAN and WiMAX, as wireless application networks within the range of local hotspots, can provide users with high transmission rates and convenient access services. Therefore, WLAN, as a broadband access method of 3G network in hotspot areas, has become an efficient application mode. [0003] In the prior art, 3GPP proposed a set of interconnection schemes for WLAN and 3G ...

AI Technical Summary

Problems solved by technology

The full authentication process requires the participation of the 3G network, and compared with the EAP-AKA protocol, the calculation and verification of the Token are increased, which increases the computational complexity of the mobile terminal and the delay of the roaming process

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