Patent ID: 9071334
Filing Date: 2015-06-30
Classification: H04B,H04J,H04L

Abstract:
1. A method for reducing far-end crosstalk in a digital subscriber line (DSL) system, comprising: transmitting, by a first DSL transceiver over a first line to a second DSL transceiver, a noise statistic related value that reflects a signal-to-noise ratio of the first line; receiving, by the first DSL transceiver over the first line from the second DSL transceiver, a synthesized signal pre-coded on the second DSL transceiver using filtering parameters associated with the noise statistic related value; and in response to the reception of the synthesized signal, transmitting, by the first DSL transceiver over the first line to the second DSL transceiver, an updated noise statistic related value; wherein transmitting, by the first DSL transceiver over the first line to the second DSL transceiver, the noise statistic related value comprises transmitting, by the first DSL transceiver over the first line to the second DSL transceiver, one of a one-bit sign of a difference and a two-bits sign of a difference; wherein the one-bit sign of the difference indicates one of the group s consisting of: wherein the two-bits sign of the difference indicates one of the group consisting of: