Methods and apparatus for mobility support and IP multimedia subsystem (IMS) registration in a multimode network environment

摘要

Described aspects provide for improving the mobility of wireless communicationdevices between one network domain and another network domain, specifically,but not limited to, between a Wireless Local Area Network (WLAN) and a cellularnetwork and the like. Present aspects provide for services to be moved seamlesslyand in a reliable manner between the cellular and WLAN domains in order to minimizeservice disruption for the end user and provide the requisite Quality of Service(QoS) for the different applications. The aspects herein presented providefor various mechanisms that serve to improve the decision points related to whenand what technology each service is expected to be associated with and providesbetter techniques to move the wireless communication device between cellularand WLAN domains when in-traffic and when idle.