Patent ID: 7031410

Claim:
A method for the compensation of interference in a signal generated by discrete multitone modulation, the interference essentially being caused by the transient process of a transmission channel via which the signal is transmitted, the signal having a multiplicity of symbols with digitized samples and each symbol being preceded by a cyclic prefix with digitized samples, the method having the following steps: feeding of the digitized samples of the signal to a serial/parallel converter ( 15 ); calculation of a difference between at least one digitized sample of a symbol and a digitized sample of the cyclic prefix preceding the symbol by means of at least one subtractor circuit ( 16 ), thereby determining interference; calculation of the transient process of the transmission channel from the determined interference by means of multiplier circuits ( 17 , 18 ); and calculation of a difference between the calculated transient process and the digitized samples of the symbol.