Method and system to increase available bandwidth in a time division multiplexing system
US7697886B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 19, 2005 |
| Grant date | Apr 13, 2010 |
| Priority date | — |
| Expiry date | Dec 11, 2027 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04H40/90
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
The present invention involves a method for transmitting data within a specified band of allocated spectrum in a satellite digital transmission system. First a data stream is encoded according to a first encoding scheme, then a second data stream is generated according to a second encoding scheme. The second encoding scheme is incompatible with the first encoding scheme. The first and second data streams are transmitted at predetermined locations within the specified band, such as time slices within a time division multiplexing transmission system. The second data stream is generated by using a more efficient FEC algorithm, including turbo-convolutional, turbo-product, low density parity check, or repeat-accumulate encoders. The inventive receiver has an antenna for receiving RF signals and a demodulator coupled to the antenna for downconverting received RF signals into a data stream. A splitter then separates the data stream into first and second component data streams. A first detector is coupled to the splitter, and is adapted to detect data in the first format. A second detector is coupled to the splitter, and is adapted to detect data in the second format.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.