Method for transmitting non binary error correcting code words with CCSK modulation, and corresponding signal and device
US9438305B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Feb 13, 2013 |
| Grant date | Sep 6, 2016 |
| Priority date | — |
| Expiry date | Feb 13, 2033 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L27/2003
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
The invention concerns a method for transmitting symbols of non binary error correcting code words via a transmission channel. The method comprises a first modulation associating each code word symbol of p bits with a sequence of at least 2p chips from 2p possible sequences, a second modulation to modulate the phase or amplitude of a carrier signal with the sequences associated with the code words, and a step of transmitting the modulated carrier signal via said transmission channel. According to the invention, the first modulation is a spread spectrum modulation of the cyclic code shift keying type using a basic pseudo-random sequence of at least 2p chips, the possible 2p sequences being obtained by a circular shift of the basic pseudo-random sequence and a cyclic prefix is inserted into each symbol to be transmitted.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.