Method for the transmission of a multi-carrier signal, and corresponding transmission device and computer program
US9455858B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 30, 2013 |
| Grant date | Sep 27, 2016 |
| Priority date | — |
| Expiry date | Sep 30, 2033 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L27/2614
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A method is provided for transmission of an OFDM signal, wherein pre-transmission processing includes: mapping data representative of a source signal to complex symbols Xn, 0<=n<M, belonging to a constellation; transforming M symbols Xn into M corrected symbols X′n, such that X′n=Xn+dn, wherein dn is a complex correction; and mapping M corrected symbols X′n to M from N carriers of an OFDM modulator to generate an OFDM signal, M<=N. The transformation includes initializing an accumulator, and, for each carrier of order n: accumulating at J samples of the n-order carrier mapped by X′n; detecting a peak on the J samples accumulated at order n−1 and comparing the peak with the corresponding time sample of the n-order carrier delivering complex correction control information; and determining the correction value dn to obtain the corrected symbol X′n according to the correction control information.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.