MObile Fixed COnvergence in Multiaccess Environment

The main goal is to provide unified user management and service continuity for an IP Multimedia System deployed on a fixed mobile convergent multi access environment. In the effort to realize the vision of fixed mobile convergence, the telecom operators f ound very compelling to extend the usage of 3GPP IP Multimedia Subsystem, originally intended for the 3G mobile network to fixed broadband networks like xADSL, cable TV, IPTV, etc. However, there are many challenges that must be solved before the fixed mo bile convergence vision based on IMS can be realized. In fact, a mobile phone equipped with an IMS client will not be able to operate in a wireless LAN environment. It is not only because of the differences between IMS and the standard SIP but also becaus e of the differences in terms of subscription fundament between the mobile world and the fixed one. Indeed, in the mobile world, each user is associated to one subscription while in the fixed network, a whole household with many users can share one subscr iption. The authentication schemes used in for the WLAN hotspots vary very much and are different to the one used in the mobile network. Consequently, due to the lack of seamless access, the IMS services will not be working in the WLAN hotspots. The Mobi come project will analyse, design, implement and test the solutions that enable: - Seamless access to the different wireless technologies like UMTS, EDGE, Wireless LAN; etc. - Unified identification, authentication and authorization of the users - Unified service offering and provisioning in: Both mobile networks and fixed broadband networks Both on mobile terminals and stationary computers - Service continuity when the user is roaming from mobile networks to fixed networks and vice versa