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:
Apr. 29, 2008
Filed:
Sep. 12, 2001
Edgar Bolinth, Mönchengladbach, DE;
Dirk Galda, Hamburg, DE;
Ralf Kern, Bocholt, DE;
Hermann Rohling, Wolfenbüttel, DE;
Edgar Bolinth, Mönchengladbach, DE;
Dirk Galda, Hamburg, DE;
Ralf Kern, Bocholt, DE;
Hermann Rohling, Wolfenbüttel, DE;
Siemens Aktiengesellschaft, Munich, DE;
Abstract
A method and OFDM receiver are provided for reducing the influence of harmonic interference on OFDM transmission systems, wherein high interference unity is achieved by the simultaneous use of a window function and a determined item of reliability information, the window function being a Nyquist-shaped window function which generates low side lobes in the subcarrier and interference spectra while simultaneously leaving the orthogonality of the subcarriers unchanged, the determined item of reliability information being derived from a measurement when transmitting a so-called zero symbol, in order to detect the instantaneously active interference signals, with the high interference immunity being achieved when the subcarrier-specific information is taken into account in a so-called Viterbi decoder.