Shared interworking of subscriber features within mobile telecommunications networks
US5943619A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Apr 29, 1997 |
| Grant date | Aug 24, 1999 |
| Priority date | — |
| Expiry date | Apr 29, 2017 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04W8/18
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.