Telecommunications – Radiotelephone system – Zoned or cellular telephone system
Patent
1997-04-29
1999-08-24
Eisenzopf, Reinhard J.
Telecommunications
Radiotelephone system
Zoned or cellular telephone system
455432, H04Q 722
Patent
active
059436190
ABSTRACT:
A protocol enhancer (PE) is interfaced between a home location register (HLR) associated with a home mobile telecommunications network and a serving mobile switching center/visitor location register (MSC/VLR) associated within a visited mobile telecommunications network. Whenever a mobile station 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 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.
REFERENCES:
patent: 5396543 (1995-03-01), Beeson, Jr. et al.
patent: 5610974 (1997-03-01), Lantto
patent: 5794142 (1998-08-01), Vanttila et al.
PCT International Search Report, Oct. 26, 1998, PCT/US 98/08553.
Coyne Michael
Valentine Eric
Eisenzopf Reinhard J.
Ericsson Inc.
Orgad Edan
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