Method and system for shaping transmitted power spectral density according to line conditions
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United States of America Patent
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N/A
Issued Date -
May 29, 2003
app pub date -
Jan 18, 2002
filing date -
Jul 31, 2001
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
The present invention provides methods and systems for improving the performance of a pair of non discrete multi-tone based digital subscriber line modems by choosing transmitted power spectral densities according to line conditions. The G.SHDSL and HDSL2 standards, for example, may specify the transmitted power to be less than a certain value at any given frequency. The present invention provides a method and system for shaping power spectral density based on line conditions where first line condition data associated with a first modem is determined; second line condition data associated with a second modem is determined; the first and second line condition data are exchanged, and a transmit spectrum is shaped in response thereto.
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