Method and apparatus for determining channel quality and...

Details Method and apparatus for determining channel quality and... Method and apparatus for determining channel quality and...

2007-09-18

2007-09-18

Tse, Young T. (Department: 2611)

Pulse or digital communications

Systems using alternating or pulsating current

Plural channels for transmission of a single pulse train

C370S208000

Reexamination Certificate

active

10886476

ABSTRACT:
In a multi-carrier communication system employing adaptive modulation and coding, a receiver feeds back channel quality information for a “binned” group of subcarriers instead of sending an individual quality report for each subcarrier. A transmitter will utilize the channel quality information for the bin to determine a set of γeffvalues corresponding to a set of modulation and coding scheme candidates, where γeffis an effective SNR that would yield a same FER in an AWGN channel. The transmitter utilizes the set of γeffvalues to aid in determining a modulation and coding scheme, and determine a single modulation and coding scheme for all subcarriers within the channel.

REFERENCES:
patent: 2002/0122381 (2002-09-01), Wu et al.
patent: 2004/0264507 (2004-12-01), Cho et al.
patent: 2005/0157670 (2005-07-01), Tang et al.
patent: 2006/0268976 (2006-11-01), Baum et al.

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