Radio channel control systems of mobile radio telephone systems
US4242538A · kind A · utility
24Cited by
4References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 7, 1979 |
| Grant date | Dec 30, 1980 |
| Priority date | — |
| Expiry date | Mar 7, 1999 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04W84/042
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
The service area of the radio telephone system is divided into a plurality of radio zones and a base station is installed in each radio zone. The base station is connected to a control unit through a common control channel and a plurality of speech channels, the control unit is connected to an ordinary telephone network, and the control unit is controlled by first and second sequence controllers for the radio system and an exchange control unit, respectively. In a modification, each first and second sequence controller comprises a plurality of discrete sequence controllers classified according to their functions.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.