The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 27, 2016
Filed:
Sep. 30, 2013
Orange, Paris, FR;
Marc Lanoiselee, La Chapelle des Fougeretz, FR;
Bruno Jahan, Tinteniac, FR;
ORANGE, Paris, FR;
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.