Patent ID: 8509050

Claim:
A method further comprising: applying a signal to a first communication medium; measuring a first crosstalk associated with a second communication medium based on the applied signal; determining a coupling relationship associated with the first communication medium and the second communication medium based on the measured first crosstalk; determining a second crosstalk associated with the second communication medium based on the determined coupling relationship wherein determining the second crosstalk includes estimating the second crosstalk based on the determined coupling relationship without directly measuring the second crosstalk at an end associated with the second communication medium; and determining a compensation signal to compensate for the second crosstalk associated with the second communication medium based on the determined second crosstalk; estimating the first crosstalk at the end associated with the second communication medium based on the determined coupling relationship; comparing the measured first crosstalk with the estimated first crosstalk; and determining a new coupling relationship if the comparison shows a crosstalk difference that exceeds a predetermined threshold, wherein determining the second crosstalk based on the determined coupling relationship includes determining the second crosstalk using the determined new coupling relationship as the determined coupling relationship.