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Pre-authentication-based authentication method for WiFi-WiMAX (wireless fidelity-worldwide interoperability for microwave access) heterogeneous wireless network

A heterogeneous wireless network and authentication method technology, applied in the field of WiFi-WiMAX heterogeneous wireless network authentication based on pre-authentication, can solve the problem of high cost and achieve the effect of improving efficiency

Active Publication Date: 2013-11-20
GUANGZHOU UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] In order to solve the technical problem of high cost in the prior art, the present invention provides a pre-authentication-based WiFi-WiMAX heterogeneous wireless network authentication method

Method used

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  • Pre-authentication-based authentication method for WiFi-WiMAX (wireless fidelity-worldwide interoperability for microwave access) heterogeneous wireless network
  • Pre-authentication-based authentication method for WiFi-WiMAX (wireless fidelity-worldwide interoperability for microwave access) heterogeneous wireless network
  • Pre-authentication-based authentication method for WiFi-WiMAX (wireless fidelity-worldwide interoperability for microwave access) heterogeneous wireless network

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specific Embodiment

[0025] The terminal switches from WiMAX to WiFi, and the key to switching from WiMAX to WiFi network is PMK. The verification of the mobile terminal can be completed by obtaining the verification of the PMK by the WiFi AP. After the mobile terminal enters the network for the first time to generate MSK, AS then uses MSK to derive PMK, and then transmits PMK to WiFi AP and WIF. When the switch from WiMAX to WiFi network starts, only the associated procedure and 4-way handshake are required to complete the switch. program. The switching process from WiMAX to WiFi is as follows figure 1 Shown: MN first performs PKMv2EAP authentication after entering the WiMAX network, and MN and AS have the same key MSK. When the WiMAX network signal becomes weak or the bit error rate is too high, the MN is ready to switch to the WiFi network. First, the MN informs the AS of the target network that may be switched to through 802.21, and then the AS derives the PMK required for WiFi authentication ...

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Abstract

The invention provides a pre-authentication-based authentication method for a WiFi-WiMAX (wireless fidelity-worldwide interoperability for microwave access) heterogeneous wireless network. The method comprises the following steps of reserving a minimum shift key (MSK) required by network switching after user equipment is subjected to full EAP (extensible authentication protocol) authentication when accessing the network for the first time by adopting a pre-authentication concept; transmitting the MSK to a target network to which the user equipment is probably switched in the future in a signal coverage area in advance by utilizing key reutilization; and finally authenticating a mobile terminal directly by using the MSK reserved in a WiFi access point or a WiMAX base station during the network switching. According to the method, the technical problem of high cost of the prior art is solved; and the method has the advantages of high authentication speed, high efficiency and the like.

Description

Technical field [0001] The invention relates to the field of communication systems, in particular to a pre-authentication-based WiFi-WiMAX heterogeneous wireless network authentication method. Background technique [0002] Since the delay caused by performing full EAP authentication during roaming in a heterogeneous wireless network will cause problems such as service interruption of the upper layer application software and degradation of transmission quality, most studies are devoted to reducing the problem of excessively long full EAP authentication time to achieve rapid The purpose of the switch. [0003] The WiMAX network working group NWG has formulated a WiFi-WiMAX interconnection standard, which regulates the network architecture when network service providers deploy both WiFi and WiMAX. NWG has added separate logical entities WIF and SFF to WiFi and WiMAX networks, which use WIF components to implement functions such as AAA authentication and DHCP authentication. When the...

Claims

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Application Information

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IPC IPC(8): H04W12/06H04W12/04H04W36/00
Inventor 谢冬青宋一赞
Owner GUANGZHOU UNIVERSITY