A location restoration proposal in PCS network

An enhanced version of aggressive location restoration is presented in this paper. In this proposal, radio resources would be saved based on the cost of wire signal and operation of location databases. A mobile communication system´s robustness in case of a location-database failure is improved without the need for periodic location update operations. Meanwhile, a chain of forwarding location pointers has been used during the period of HLR failure. So mobile stations are unconscious of the failure of HLR, and mobile subscribers can always make outgoing calls