Patent ID: 6760847
Filing Date: 2004-07-06
Classification: H04L,H04M

Abstract:
A method of subscriber loop disturber recognition, comprising:receiving a sample power spectral density of said subscriber loop based on at least one measurement obtained while said subscriber loop is not transmitting data; at each of a plurality of frequencies, comparing an amplitude of said sample power spectral density with a threshold; based on said comparing, selecting from a universe of known power spectral densities a set of one or more known power spectral densities, each known power spectral density in said set being representative of a power spectral density in a loop which is not transmitting data and is in the presence of one of (i) no subscriber loop disturbers, (ii) a particular subscriber loop disturber, and (iii) particular subscriber loop disturbers; correlating said sample power spectral density with each one of said set of known power spectral densities; and based on said correlating, determining present subscriber loop disturbers.