The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 24, 1999
Filed:
Apr. 29, 1997
Michael Coyne, Stockholm, SE;
Eric Valentine, Plano, TX (US);
Ericsson Inc., Research Triangle Park, NC (US);
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.