Title:
動的なデジタル通信システム制御
Document Type and Number:
Japanese Patent JP4370418
Kind Code:
B2
Abstract:
A method of vectored transmission in a Digital Subscriber Line (DSL) system using Discrete Multi-tone communications over a plurality of communications lines, each of the plurality of communication lines have at least one transmitter and at least one receiver, and wherein cross-talk interference between the plurality of communication lines occurs during transmission, the method comprising: providing signals within a plurality of tones to a precoder block, determining parameters of the precoder block using a communication adaptation unit and line and signal characteristics of the plurality of communication lines, pre-distorting the signals within the plurality of tones using the precoder block and the determined parameters, and transmitting the pre-distorted signals on at least one of the plurality of communication lines, wherein the cross-talk interference is eliminated or reduced by transmission of the pre-distorted signal on the at least one of the plurality of communications lines.
Inventors:
Guinis, Gorgos
Yu, way
Dzong, Chaohan
Coffey, John
Yu, way
Dzong, Chaohan
Coffey, John
Application Number:
JP2003501859A
Publication Date:
November 25, 2009
Filing Date:
May 31, 2002
Export Citation:
Assignee:
INTERNATIONAL BUSINESS MACHINES CORPORATION
International Classes:
H04J11/00; H04L29/10; H04B15/00; H04L27/26; H04M11/06; H04B1/10
Domestic Patent References:
| JP200186092A | ||||
| JP2000269919A | ||||
| JP200186007A | ||||
| JP3116090B2 | ||||
| JP3084368B2 | ||||
| JP2002538669A |
Foreign References:
| WO2000051303A1 |
Other References:
the Thirty-Fourth Asilomar Conference on Signals, Systems and Computers, 2000,Vol.2, 29 Oct.-1 Nov. 2000,p.1627-1631
IEEE Globecom'01,Vol.1,p394-398
IEEE Globecom'01,Vol.1,p394-398
Attorney, Agent or Firm:
Atsushi Nakajima
Kato Kazunori
Katsuichi Nishimoto
Kato Kazunori
Katsuichi Nishimoto