Pulse or digital communications – Systems using alternating or pulsating current – Plural channels for transmission of a single pulse train
Reexamination Certificate
2005-12-27
2005-12-27
Vo, Don N. (Department: 2631)
Pulse or digital communications
Systems using alternating or pulsating current
Plural channels for transmission of a single pulse train
Reexamination Certificate
active
06980601
ABSTRACT:
A method for enhancing the bit rate and/or margin at which quadrature amplitude modulation (QAM) communication is performed over multiple bands of a communication link includes the steps of varying a spectral allocation and constellation size with which communication is performed, so as to define a combination of spectral allocation and constellation size at which the bit rate and/or margin are enhanced. The rate adaptation method identifies the spectral allocation and constellation size to use on each of the multiple bands that results in a total bit rate greater than or equal to the target bit rate, subject to specified constraints on SNR margin and/or BER limits. If more than one parameter set has this property, the rate adaptation method may for example select the spectral allocation and constellation size combination that maximizes the minimum SNR margin across the multiple bands.
REFERENCES:
patent: 5359593 (1994-10-01), Derby et al.
patent: 5479447 (1995-12-01), Chow et al.
patent: 5598435 (1997-01-01), Williams
patent: 5987069 (1999-11-01), Furukawa et al.
patent: 6072779 (2000-06-01), Tzannes et al.
patent: 6088387 (2000-07-01), Gelblum et al.
patent: 6101223 (2000-08-01), Betts
patent: 6175550 (2001-01-01), van Nee
patent: 6327311 (2001-12-01), Ojard
patent: 0 753 947 (1997-01-01), None
patent: 0 812 087 (1997-12-01), None
patent: 0 869 647 (1998-10-01), None
patent: 2 285 375 (1995-07-01), None
patent: WO 95/28773 (1995-10-01), None
patent: WO 97/37454 (1997-10-01), None
patent: WO 98/57472 (1998-12-01), None
Christie Parker & Hale LLP
Vo Don N.
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