Communication control system capable of searching a called telephone set in a mobile radio telephone network
US4843622A · kind A · utility
Assignees
Inventors
Key dates
| Filing date | Apr 4, 1988 |
| Grant date | Jun 27, 1989 |
| Priority date | — |
| Expiry date | Apr 4, 2008 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04W68/06
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
For use in a mobile radio telephone network including radio telephone sets movable in an area divided into a predetermined number of zones, a communication control system includes a searching arrangement (25, 33) for searching one (15') of radio communication devices of the network as a searched communication device that is assigned to a present one of the zones into which a specific one (11') of the radio telephone sets has moved from a previous one of the zones. For operation of the searching arrangement, a communicating arrangement (22, 25, 32) of the system sends a call signal to a specific one of the radio communication devices that is assigned to the previous zone to transmit the call signal to the specific telephone set and receives a response signal transmitted from the specific telephone set if the specific telephone set were in the previous zone. For the communicating arrangement, a selecting arrangement (21, 25, 31) selects the specific communication device with reference to a memory (27) for memorizing, in correspondence to the radio telephone sets, location information indicative of the radio communication devices assigned to the zones in which the radio telephone sets…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.