Qwest Communications International Inc.

Darwei Kung

Bruce A Phillips

Kurt A Campbell

Richard H Fink

Donald L Brodigan

Todd A Pett

James W Nevelle

Joseph P Huggins

David J Arens

Paula C Poberzyn

A John Ulanskas

John M Czak

An XDSL signal distribution system is provided having a regenerator unit located a predetermined distance from a central office XTU unit for extending the distribution reach of the system. The regenerator is arranged to decode the payload of transmitted XDSL signals into base digital data before repackaging and regeneration onto a twisted pair copper cable. This allows the regenerator to selectively reformat the XDSL signals into a desired protocol format suitable for either an ATM protocol layer, or direct transmission. In addition, the regenerator can retransmit the XDSL signals at a fixed or variable transmission rate to optimize data through-put or system reach.

System and method for increasing distribution distance of XDSL type signals

Broadband communication systems and methods of the type utilizing xDSL packet-based technologies are configured to provide packet-based point-to-multipoint communication between an upstream xDSL modem and a plurality of downstream xDSL modems. The system preferably includes a twisted pair connecting the upstream xDSL modem to the plurality of downstream xDSL modems, with each downstream xDSL modem being in communication with a corresponding tap along the twisted pair.

xDSL-based communication system

A method for controlling transmission power from a customer premise equipment device over a local loop of a digital subscriber line involves determinating a maximum power level for transmissions over the local loop. The maximum power level is based on a response of the local loop to a test signal to allow a different loop in the binder group to have a different maximum power level to reduce potential for crosstalk in the binder group.

Method for controlling DSL transmission power

A method and system for providing telephony services utilizes an emulated telephony channel within an allocated portion of digital subscriber line bandwidth. The digital subscriber line connects to a packet switched network, and embodiments of the present invention derive telephony services over the digital subscriber line by utilizing a portion of the available bandwidth to emulate one or more telephony channels.

Method and system for providing emulated telephony over DSL

An xDSL signal distribution system is provided having a DSL translator unit located between a central office XTU unit and a customer location for allowing equipment of multiple types of DSL signal format to be used within the same distribution system. The translator unit is arranged to decode the payload of transmitted signals of one type of DSL format into base digital data. The translator unit then performs line code conversion to a second desired type of DSL code format. In addition, the translator unit employs buffering to allow transmission of the converted xDSL signals at a transmission rate suitable for the type of coding.

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Aurora, CO, United States of America

Darwei Kung