Patent ID: 8483293
Filing Date: 2013-07-09
Classification: H04B,H04L

Abstract:
1. A device for processing a signal received over a transmission channel of an orthogonal frequency division multiplexing system, comprising: a filter unit configured to filter out an interfering signal located outside a passband of a desired signal, the filter unit having at least one controllable filter parameter; a Fast Fourier Transform (FFT) unit operatively connected to the filter unit and located after the filter unit along a signal path for the signal; a compensation unit operatively connected to the FFT unit and located after the FFT unit in the signal path, wherein the compensation unit is adapted to apply to the signal a compensation function that compensates for a filter response of the filter unit within a signal bandwidth of the signal; a delay spread estimation unit adapted to determine a delay spread of the transmission channel; and a controller adapted to control the filter unit and the compensation unit based on the determined delay spread such that the delay spread of the transmission channel plus a delay spread of the filter unit does not exceed a guard interval of the signal.