Patent ID: 8085887

Claim:
A method for generating a compensation signal for the compensation of at least one RFI (Radio Frequency Interference) interference signal that, in a DMT (Discrete Multi-tone) transmission, is permanently superposed on a received DMT reception signal being divided into a multiplicity of channels comprising the following steps: providing a single reference channel as said reference channel for all data channels to be compensated from said multiplicity of channels; said multiplicity of channels comprising a first portion provided as data channels for the data transmission and second portion that defines an observation region provided for data transmission; providing channel-specific coefficients for at least one of said data channels to be compensated; said channel-specific coefficients providing a correlation of said RFI interference signal being superposed on said data signal relative to said reference channel; and said received DMT reception signal for generating a compensation signal, weighting and summing said received DMT reception signals with said channel-specific coefficients per DMT frame and for each of said data channels to be compensated; for the generation of said compensation signals, combining a plurality of unused channels from said observation region as said single reference channel; using said single reference channel from said observation region for generating said compensation signal; calculating said compensation signal anew for each DMT frame, wherein calculating said compensation signal is performed only for those channels to be compensated outside said observation region, if at least one of the absolute value of an interference power density of said RFID interference signal or of said compensation signal lies above a predefined threshold.