The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 09, 2014
Filed:
Aug. 25, 2008
Alexei E. Ashikhmin, Morristown, NJ (US);
Adriaan J. DE Lind Van Wijngaarden, New Providence, NJ (US);
Gerhard Guenter Theodor Kramer, Chatham, NJ (US);
Jochen Maes, Veerle, BE;
Carl Jeremy Nuzman, Union, NJ (US);
Carl Robert Posthuma, Wheaton, IL (US);
Danny Van Bruyssel, Temse, BE;
Jan S. Verlinden, Deurne, BE;
Philip Alfred Whiting, New Providence, NJ (US);
Miroslav Zivkovic, 's-Gravenhage, NL;
Alexei E. Ashikhmin, Morristown, NJ (US);
Adriaan J. De Lind Van Wijngaarden, New Providence, NJ (US);
Gerhard Guenter Theodor Kramer, Chatham, NJ (US);
Jochen Maes, Veerle, BE;
Carl Jeremy Nuzman, Union, NJ (US);
Carl Robert Posthuma, Wheaton, IL (US);
Danny Van Bruyssel, Temse, BE;
Jan S. Verlinden, Deurne, BE;
Philip Alfred Whiting, New Providence, NJ (US);
Miroslav Zivkovic, 's-Gravenhage, NL;
Alcatel Lucent, Boulogne-Billancourt, FR;
Abstract
Techniques are disclosed for compensating for crosstalk using adaptation of data signals transmitted over respective channels of a communication network. In one example, a method comprises the following steps. Data is transmitted to a communication network device via a communication line during a sequence of periods. For each period of the sequence of periods, a separate value of a measure of crosstalk that was measured at the communication network device is received, each value being an average of measurements at the device of measures of crosstalk for a plurality of communication network signal subcarriers. For each individual signal subcarrier of the plurality, a matrix is updated based on the received values, the matrix being configured to precode data transmissions to the communication network device over the individual signal subcarrier. The communication network may be a DSL system, the signal subcarriers may be DSL tones, and the measure of crosstalk may be a SINR value.