Switching center for radiomobile application
US5291476A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Oct 17, 1989 |
| Grant date | Mar 1, 1994 |
| Priority date | — |
| Expiry date | Oct 17, 2009 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04W88/14
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A switching center of the invention includes a service access exchange and a control point which are interconnected by an interconnection multiplex link. The exchange is connected to base station controllers via first multiplex links and to the public switched telephone network by second multiplex links which also convey signalling relating to a permanent file, relating to a temporary file, and relating to other switching centers. The exchange sets up semipermanent links between the interconnection multiplex link connecting it to the control point and both the first multiplex links for the purpose of interchanging signalling, and to the second multiplex links for interchanging signalling with the permanent and temporary files and with other switching centers.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.