Non-uniform multi-beam satellite communications system and method
US6463282B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 16, 2001 |
| Grant date | Oct 8, 2002 |
| Priority date | — |
| Expiry date | Apr 16, 2021 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04B7/18523
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A satellite broadcast system and method, particularly useful for television signals, allows for local as well as nationwide broadcast service by allocating greater satellite resources to the more important local service areas. This is accomplished by broadcasting a non-uniform pattern of local service beams and designing the system to establish different service area priorities through factors such as the individual beam powers, sizes, roll-off characteristics and peak-to-edge power differentials. Frequency reuse is enhanced by permitting a certain degree of cross-beam interference, with lower levels of interference established for the more important service areas.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.