Apparatus and method for determining and compensating for interference signals in a communication system

For different applications correspondingly configured devices / procedures for the determination and compensation of crosstalk are known. Too little attention is given to be encountered in practice situation of reciprocally coupled systems. To further develop the known equipment and method such that on the one hand, the computational complexity is reduced, on the other hand, this reduction does not come at the expense of performance at the signal filtering, the apparatus for determining and compensating for interference signals in a communication system having at least two pairs (1, 1 ' ) of a balanced line bundle (91) according to the invention on: · Terminals (96, 96 'and 97, 97') for connection on both sides of the signal lines of the conductor pairs (1, 1 '), · The terminals (96, 96 'and 97, 97') downstream lag elements (94, 94 'and 95, 95'), · At least one the Totzeitgliedern (94, 94 'and 95, 95') downstream compensation circuit (10) having a Storsignaleingang (11) and a compensation signal source comprising a compensation signal to the respective pair of wires (1, 1 ') is fed, · A Storkenngrosen detecting means (70) for determining at least one crosstalk characterizing Storkenngrose based on a first signal (x [k]) and the interfering signal (y [k]) and · Associated with the Storkenngrosen a detecting means (70) compensation control (98) which the switching off and switching on of ...