METHOD AND APPARATUS FOR CROSSTALK MANAGEMENT AMONG DIFFERENT VECTORED GROUPS

摘要

The present invention relates generally to data communications, and more particularly to techniques based on the G.fast protocol for managing operation around potentially degrading un-cancellable crosstalk among separate vector groups implemented in a single G.fast based box located at a network distribution point, referred to as a Distribution Point Unit (DPU). In embodiments, techniques according to the invention configure transmission of signals from the different vector groups so as to avoid or prevent transmission of signals, either in the frequency domain or time domain or a combination of the two, from causing severe degradation in performance due to un-cancelled crosstalk among the separate groups.

主权项

1. A method of controlling communications by transceivers in a common distribution point unit (DPU), the method comprising:
configuring all of the transceivers to use a time division duplex (TDD) physical frame having a downstream set of discrete multitone (DMT) symbol periods and an upstream set of DMT symbol periods; configuring first ones of the transceivers to transmit in a first portion of the downstream set of DMT symbol periods of the physical frame; and configuring second ones of the transceivers to transmit in a second portion of the downstream set of DMT symbol periods of the physical frame, wherein the first and second portions do not contain any common DMT symbol periods in the physical frame.