Providing service area dependent subscriber data within a mobile telecommunications network

摘要

Subscriber data for a particular mobile station are correlated with a particular service area and stored at a home location register (HLR) associated with that particular mobile station. Whenever the mobile station travels into a mobile switching center (MSC) serving that particular service area, the MSC performs a location update with the HLR. A location update signal further includes data representing the identity of the service area currently serving the mobile station. Upon receiving the location update signal from the serving MSC, the HLR analyzes the received data to determine the identity of the service area currently serving the mobile station and retrieves the subscriber data correlated with that particular service area. The retrieved subscriber data are then transmitted back to the serving MSC in order to provide service area dependent mobile service to the roaming mobile station.