ITU has given first stage approval (consent) to two new standards on fixed-mobile convergence (FMC). Operators offering FMC will be able to provide both services with a single phone, switching between networks on an ad hoc basis.
Experts say that the standards are an important step in the ongoing study and development of next generation network (NGN) mobility support and FMC service and network capabilities.
Recommendation ITU-T Y.2018 describes a mobility management and control framework and architecture for NGN. The architecture supports IP-based mobility for user devices in the NGN transport stratum. Y.2018 defines a new component called MMCF (Mobility Management and Control Functions) which includes support for handling mobile location management and handover decision and control as well as the interaction with other existing NGN functional components such as NACF (Network and Attachment Control Functions), RACF (Resource and Admission Control Functions), service control functions and transport functions.
Recommendation ITU-T Y.2808 describes principles, service and network capabilities, and architectures for IP Multimedia Subsystem (IMS) based FMC. The Recommendation describes a network architecture that uses IMS to provide the same set of services to user terminals regardless of the use of fixed or mobile access network technologies, and ensures service continuity when the point of attachment of the terminal changes between different access network technologies.