FRAMEWORK OF MEDIA-INDEPENDENT PRE-AUTHENTICATION

摘要

A Media-independent Pre-Authentication (MPA) method for supporting terminal handovers across different types of access networks (e.g. from WLAN to CDMA or to GPRS) or the same type of networks is described herein. The method includes employing a mobility optimization scheme configured to work over a link-layer that supports internet protocol (IP) traffic at layer 3 and with a network layer or application layer mobility management protocol; providing a mobile node that has established connectivity to a first-media network; via the first-media network performing pre-authentication of the mobile node at higher layers and proactively establishing higher layer and lower layer contexts of a different-media candidate target network to which the mobile node can move using an authentication agent in the candidate target network, and executing a configuration protocol using a configuration agent in the candidate target network to obtain an IP address or new care-of address for a proactive handover of the mobile node to the candidate target network.