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A pre-authentication based wifi-wimax heterogeneous wireless network authentication method

A technology of heterogeneous wireless network and authentication method, 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: 2016-08-17
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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  • A pre-authentication based wifi-wimax heterogeneous wireless network authentication method
  • A pre-authentication based wifi-wimax heterogeneous wireless network authentication method
  • A pre-authentication based wifi-wimax heterogeneous wireless network authentication method

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specific Embodiment

[0025] The terminal is handed over from WiMAX to WiFi. The key to the handover from WiMAX to WiFi network is the PMK. The verification of the PMK by the WiFi AP can complete the verification of the mobile terminal. After the mobile terminal first enters the network to generate MSK, the AS uses the MSK to derive the PMK, and then transmits the PMK to the WiFi AP and WIF. When the handover from WiMAX to WiFi network starts, it only needs to execute the association procedure and 4 handshakes to complete the handover program. The handover process from WiMAX to WiFi is as follows: figure 1 Shown: After entering the WiMAX network, the MN first performs PKMv2EAP authentication, and the 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 notifies the AS of the target network to which it may switch to through 802.21, and then the AS derives the PMK required for WiFi...

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Abstract

The pre-authentication-based WiFi-WiMAX heterogeneous wireless network authentication method provided by the present invention first adopts the idea of ​​pre-authentication, and after the user equipment first enters the network and performs full EAP authentication, the MSK required for network switching is reserved; The key is reused, and the MSK is sent to the target network that may be switched to in the future within the signal coverage in advance; finally, the mobile terminal is authenticated by directly using the MSK reserved in the WiFi access point or the WiMAX base station when the network is switched. The invention solves the technical problem of high cost in the prior art. The invention has the advantages of fast authentication and high efficiency.

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 the roaming process of heterogeneous wireless networks will cause problems such as service interruption of upper-layer application software and degradation of transmission quality, most research is devoted to reducing the problem of excessively long time for full EAP authentication to achieve fast purpose of switching. [0003] The WiMAX network working group NWG has formulated the WiFi-WiMAX interconnection standard, which regulates the network architecture when the network service provider deploys both WiFi and WiMAX. NWG adds independent logical entities WIF and SFF to WiFi and WiMAX networks, and uses WIF components to implement functions such as AAA authentication and DHCP authentica...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W12/06H04W12/04H04W36/00
Inventor 谢冬青宋一赞
Owner GUANGZHOU UNIVERSITY