Systems and methods for resolving signal-to-noise ratio...

Details Systems and methods for resolving signal-to-noise ratio... Systems and methods for resolving signal-to-noise ratio...

2011-03-15

2011-03-15

Payne, David C (Department: 2611)

Pulse or digital communications

Transceivers

Modems

C375S219000, C375S220000, C370S272000, C370S273000, C370S276000, C370S297000, C455S039000, C455S073000, C725S111000

Reexamination Certificate

active

07907658

ABSTRACT:
Systems and methods for resolving signal-to-noise ratio margin difference n dual latency discrete multi-tone (DMT)-based xDSL systems under colored noise conditions. Rather than assuming a constant power spectral density (PSD) for noise over fast and interleaved data paths of a dual latency system, band edges vulnerable to colored noise are determined and data on the fast data path is allocated away from these band edges. Also, receive windowing may be used to further enhance performance.

REFERENCES:
patent: 5790550 (1998-08-01), Peeters et al.
patent: 6408004 (2002-06-01), Wetzel et al.
patent: 6801570 (2004-10-01), Yong
patent: 7274734 (2007-09-01), Tsatsanis
patent: 2002/0163983 (2002-11-01), Redferm
PCT International Search Report and Written Opinion, dated Mar. 14, 2008.

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