System and method for restricting call setup to a fixed subscription area in a cellular telecommunications network
US5850604A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Apr 28, 1995 |
| Grant date | Dec 15, 1998 |
| Priority date | — |
| Expiry date | Apr 28, 2015 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04W84/14
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
There is disclosed a system and method for accessing a cellular telecommunications network serving a plurality of normal subscribers and a plurality of fixed subscribers. The normal and fixed subscribers access the system through a plurality of cells and a plurality of base stations electronically connected to a mobile switching center (MSC). Each of the base stations transmits radio frequency signals over a coverage area defining one of the cells. The system differentiates during system access the normal subscriber from the fixed subscriber. The system permits the normal subscriber access to the system through any one of the plurality of cells. The system permits the fixed subscriber restricted call setup to the system through a fixed subscription area (FSA) defined for the fixed subscriber to include at least one of the cells. The system includes a redirection access function for redirecting access to the system by the fixed subscriber to one of the cells in the FSA when the fixed subscriber initially accesses the system through a serving cell excluded from the FSA. A fixed subscriber who travels near or slightly outside cell coverage area of the FSA is able to access the cellula…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.