Method and apparatus for relaying signals between a ground station and a satellite using a ground relay station
US4506383A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jan 4, 1980 |
| Grant date | Mar 19, 1985 |
| Priority date | — |
| Expiry date | Jan 4, 2000 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04B7/18528
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
In satellite communication systems it is often necessary to relay the signal between terminal stations and the satellite through ground relay stations remote from the terminal stations. Normally, in systems using composite multi-carrier signals for transmission through the satellite, the composite multi-carrier signals are reduced to baseband in the ground relay station prior to retransmission. To reduce the amount of equipment and the cost of such a ground relay station, a method and apparatus for relaying the composite multi-carrier signal through the ground relay station without reducing it to baseband in the ground relay station is provided. Thus, with this arrangement, the composite multi-carrier nature of the signal is preserved throughout the ground relay station.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.