Method and apparatus for concatenated channel coding in a data transmission system
US6769089B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | Dec 24, 1999 |
| Grant date | Jul 27, 2004 |
| Priority date | — |
| Expiry date | Dec 24, 2019 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03M13/1515
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
The present invention is a novel method and apparatus for efficiently coding and decoding data in a data transmission system. A concatenated coding scheme is presented that is easily implemented, and that provides acceptable coding performance characteristics for use in data transmission systems. The inventive concatenated channel coding technique is well suited for small or variable size packet data transmission systems. The technique may also be adapted for use in a continuous mode data transmission system. The method and apparatus reduces the complexity, cost, size, power consumption typically associated with the prior art channel coding methods and apparatuses, while still achieving acceptable coding performance. The present invention advantageously performs concatenated channel coding without the necessity of a symbol interleaver. In addition, the present invention is simple to implement and thereby consumes much less space and power that do the prior art approaches. The present invention not only eliminates the need for a symbol interleaver between the outer and inner codes, but it also enjoys a drastically reduced implementation complexity of the inner code Viterbi decoder.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.