Interworking between GSM and PDC through IC cards

This paper addresses roaming technique between GSM and PDC cellular systems using the different signaling protocols. Many countries have already employed GSM specifications in their PLMNs and these systems inter-work effectively. In PDC, a similar concept of card services will be introduced in the future. The protocols for this services use a PDC (personal digital cellular) card and guarantee PM (personal mobility) and TM (terminal mobility). We introduce the service images come up with through roaming between different cellular standards and propose a system configuration that realizes relevant services. We propose a detailed system configuration which supports roaming feature provision. Then we propose an authentication technique to realize these services.