SECURITY UPDATE PROCEDURE FOR ZONE SWITCHING IN MIXED-MODE WIMAX NETWORK

A zone switching method is disclosed for use in a mixed-mode WiMAX environment. The zone switching method is useful in a WiMAX network having both 802.16e (legacy) and 802.16e/802.16m (mixed-mode, or advanced) entities, including mobile stations, base stations, and access service network entities. T...

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Bibliographische Detailangaben
Hauptverfasser: SHARAGA AVISHAY, YANG XIANGYING, VENKATACHLAM MUTHAIAH, SHAN CHANG HONG
Format: Patent
Sprache:eng
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Zusammenfassung:A zone switching method is disclosed for use in a mixed-mode WiMAX environment. The zone switching method is useful in a WiMAX network having both 802.16e (legacy) and 802.16e/802.16m (mixed-mode, or advanced) entities, including mobile stations, base stations, and access service network entities. The zone switching method includes anchor authenticator relocation, dual security context maintenance, and security updates for both entry-before-break-capable mobile stations and for those mobile stations with slower switching speeds. The zone switching method enables an advanced mobile station to seamlessly switch from legacy to mixed-mode operation once the mixed-mode entities are available to service the 802.16m operations.