SHARED INTERWORKING OF SUBSCRIBER FEATURES WITHIN MOBILE TELECOMMUNICATIONS NETWORKS

摘要

A protocol enhancer PE (250) is interfaced between a home location register HLR (50) associated with a home mobile telecommunications network and a serving mobile switching center/visitor location register MSC/VLR (40) associated within a visited mobile telecommunications network. Whenever a mobile station (30) associated with the home network roams into the visited network, the PE down-loads subscriber data associated with the mobile station from the HLR. The down-loaded subscriber data are then combined with additional subscriber data unique to the visited network. Such data, for example, enable the roaming mobile station to utilize additional subscriber features not provided by the first network. The combined subscriber data are then communicated (330) to the serving MSC/VLR. The serving MSC/VLR then utilizes the combined subscriber data to provide otherwise unavailable subscriber features to the roaming mobile station.