Frequency assignment system in FDMA communication system
US4783779A · kind A · utility
123Cited by
4References
5Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 10, 1986 |
| Grant date | Nov 8, 1988 |
| Priority date | — |
| Expiry date | Oct 10, 2006 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04B7/208
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
In a frequency division multiple access (FDMA) communication system, a plurality of carrier frequencies relating to a predetermined frequency band for transmitting a PSK (phase shift keying) signal are provided on a frequency scale. When a service is a low bit rate signal, it is transmitted by using a single carrier frequency and its related frequency band. When a service is a high bit rate signal which can not be transmitted in a single carrier signal, the service signal is divided in to a plurality of low bit rate PSK signals, each of which is transmitted by using a single carrier frequency and the related frequency band.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.