Patent ID: 6317495
Filing Date: 2001-11-13
Classification: H04L

Abstract:
A method for determining a transmit spectrum for use in communicating data on a communications channel, wherein the communications channel is subject to interference from one or more other communications channels, wherein the communications channel carries a first type of service, wherein the one or more other communications channels includes a first subset of communications channels that carry the first type of service, the method comprising:determining a channel transfer function of the communications channel;determining interference characteristics of the communications channel, wherein said determining interference characteristics includes at least one of:a) determining an amount of self interference into the communications channel that results from interference from the first subset of communications channels that carry the first type of service, wherein the self interference includes self-FEXT, andb) determining an amount of uncorrelated interference into the communications channel, wherein the uncorrelated interference includes non-white noise;examining the channel transfer function and the interference characteristics;determining the transmit spectrum in response to said examining, wherein the transmit spectrum is useable in communicating data on the communications channel, and wherein the transmit spectrum includes a portion using MFDS signaling.