Method and apparatus for qualifying access to communication system services based on subscriber unit location
US5561836A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | May 2, 1994 |
| Grant date | Oct 1, 1996 |
| Priority date | — |
| Expiry date | May 2, 2014 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04B7/18545
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A communication system qualifies access to the services it provides to subscriber units based upon the locations of the subscriber units. Subscriber unit location data are routed through a satellite to a gateway where a home subscriber information manager for the subscriber unit resides. This home gateway selects a service control area and corresponding serving gateway to use in establishing calls to and from the subscriber unit. When an area of uncertainty for the subscriber unit's location overlies a boundary between service control areas, additional location data may be obtained to shrink the area of uncertainty. If the area still overlies a boundary, a serving gateway is selected based upon the current serving gateway, the home gateway, and the service control area where the center of the area of uncertainty resides.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.