Communication system employing reuse of satellite spectrum for terrestrial communication
US6735437B2 · kind B2 · utility
138Cited by
19References
129Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 26, 1998 |
| Grant date | May 11, 2004 |
| Priority date | — |
| Expiry date | Dec 13, 2018 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04B7/18563
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A terrestrial communication system using satellite uplink and downlink frequencies is disclosed. A terrestrial cell site produces a signal at a satellite uplink frequency that is transmitted to a terrestrial user terminal. The terrestrial cell site receives a signal at a satellite downlink frequency that was transmitted by a terrestrial user terminal. The terrestrial cell site may include a signal nulling means in the direction of a satellite producing signals at the uplink and downlink frequencies.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.