Authentication procedure and Terminal switching scheme for PAN services

Personal area network (PAN), which is owned by an individual user and which consists of interconnected terminals, is currently attracting attention as a key component of fixed and mobile convergence (FMC), or "ubiquitous" services. In this paper, we propose an authentication procedure that guarantees the validity of the peripheral terminals in a PAN, a NAPT-based session control method that solves the problems of the conventional SIP-based method, and a session handover method between terminals under the control of several independent mobility technologies