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STA switching method when WPI is finished by AC in convergence type WLAN and system thereof

A purpose, site technology, applied to STA switching and its system field when AC completes WPI in converged WLAN

Active Publication Date: 2009-10-21
刘智
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In order to solve the defect that the current WAPI-based WLAN station STA switching method in the background technology is only applicable to the autonomous architecture, the present invention provides a converged WLAN architecture when the access controller AC implements the wireless local area network security infrastructure WPI (WLAN Privacy Infrastructure) handover method and system for a station STA between wireless terminal points WTP (Wireless Terminal Point) under the same AC

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  • STA switching method when WPI is finished by AC in convergence type WLAN and system thereof
  • STA switching method when WPI is finished by AC in convergence type WLAN and system thereof

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Embodiment Construction

[0034] see figure 1 , 2 , according to the preferred embodiment of the present invention, its concrete method is as follows:

[0035] 1) The STA re-associates with the AC through the destination WTP;

[0036] 1.1) The STA passively listens to the beacon frame of the destination WTP to obtain the relevant parameters of the destination WTP including the WAPI information element, and the WAPI information element includes the WAI authentication and key management suites, cipher suites, etc. supported by the destination WTP; or the STA actively reports to the destination WTP The WTP sends a polling request frame. After receiving the polling request frame from the STA, the destination WTP sends a polling response frame to the STA. After receiving the polling response frame, the STA obtains the relevant parameters of the destination WTP including the WAPI information element. The WAPI information element includes the destination WTP. Supported WAI authentication and key management ...

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Abstract

The invention relates to an STA roam switching method when WPI is finished by AC in a convergence type WLAN and a system thereof. The method comprises the steps as follows: 1) site STA is re-relevantly connected with an access controller (AC) by a target wireless terminal point (WTP); 2) the AC notifies the relevant WTP to delete the site STA; and 3) the AC notifies the WTP to add the site STA. In the switching process of STA, The invention can realize STA addition and STA deletion operations between AC and WTP based on CAPWAP control messages, can safely and fast realize site STA switching among WTPs under the same AC.

Description

technical field [0001] The present invention relates to a STA handover method and system when WPI is completed by an AC in a convergent WLAN. Background technique [0002] At present, the STA (Station) handover methods in WLAN (Wireless Local Area Network) based on the WAPI (WLAN Authentication and Privacy Infrastructure) protocol are all proposed under the autonomous WLAN architecture, which cannot be directly applied to the WAPI-based convergent WLAN architecture. Architecture. In a converged WLAN architecture, access control devices such as access controllers (ACs), wireless switches, or wireless routers centrally manage WLAN authentication and policy enforcement functions. These devices can also provide centralized bridging, forwarding, encryption and decryption. user data, etc. SUMMARY OF THE INVENTION [0003] In order to solve the defect that the current WAPI-based STA handover method in a WLAN is only applicable to an autonomous architecture, the present inventio...

Claims

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Application Information

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IPC IPC(8): H04W12/04H04W36/08H04W48/14H04W48/16H04W76/02H04W12/0433H04W12/06
CPCH04L63/205H04W36/0038H04W12/06H04W92/12H04L41/0803H04W84/12H04W76/19H04W76/34H04W12/04H04W36/38
Inventor 杜志强曹军铁满霞赖晓龙黄振海
Owner 刘智
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