Seamless Mobility Management between IP-based Networks

This article represents an approach of providing seamless services to the mobile consumer in an area having convergence of different Radio Access Technologies (RATs). In particular, the proposed framework is capable of managing session mobility between General Packet Radio Service (GPRS) and Worldwide Interoperability for Microwave Access (WiMAX) at the core network level. Within this interworking architecture, IP Multimedia Subsystem (IMS) was applied as a common platform at the application layer for session mobility and Mobile IP was applied at the network layer to maintain IP mobility. The unique contribution of this architecture is the hypothetical user mobile device having multiple transceivers along with intelligence of making decisions of handover. The article comes to an end by narrating the potential advantages of the proposed approach in eliminating the packet loss due to handover.