THE CDMA MOBILE SYSTEM ARCHITECTURE

The architecture of the CDMA mobile system (CMS) is developed based on three function groups-service resource, service control, and service management groups. In this paper, the CMS architecture is discussed fr om the point of view of implementing these functions. The variable len gth packets are used for transmission. The synchronization clock signa ls are derived from the GPS receiver. The open loop and closed loop te chniques are used for the power control. The internationally accepted signaling and network protocols are employed. The call control for the primary services is designed to provide efficient mobile telecommunic ation services. The softer handoff is implemented in one card. The mob ile assisted handoff and the network assisted handoff are employed in the soft and hard handoffs. The authentication is based on the secret data which includes random numbers. The management functions, which in clude the location management, resource management, cell boundary mana gement and OAM management, are implemented to warrant the system effic iency, maximum capacity and high reliability. The architecture ensures that the CMS is flexible and expandable to provide subscribers with e conomic and efficient system configuration. The dynamic power control, adaptive channel allocation, and dynamic cell boundary management are recommended for future work.