Multiplex communications – Generalized orthogonal or special mathematical techniques
Reexamination Certificate
2008-04-29
2008-04-29
Orgad, Edan (Department: 2619)
Multiplex communications
Generalized orthogonal or special mathematical techniques
C370S208000, C375S260000, C375S346000
Reexamination Certificate
active
10380339
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.
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Bolinth Edgar
Galda Dirk
Kern Ralf
Rohling Hermann
Bell Boyd & Lloyd LLP
Orgad Edan
Park Jung
Siemens Aktiengesellschaft
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