Method and apparatus for estimating the link quality of a...

Details Method and apparatus for estimating the link quality of a... Method and apparatus for estimating the link quality of a...

2007-07-24

2007-07-24

Ha, Dac (Department: 2611)

Pulse or digital communications

Testing

C375S132000, C375S136000, C375S226000, C375S227000, C375S346000, C455S013400

Reexamination Certificate

active

10632902

ABSTRACT:
A link quality estimating method and apparatus adopts a fading value to modify an estimated link quality of a channel thereby obtaining a measure being very close to the real link quality. The method is implemented by utilizing two sequentially received long training symbols to derive two sets of subcarrier gain values Hk,1and Hk,2. Based on the subcarrier gain values Hk,1and Hk,2, parameters representing the estimated channel gain value (A), the fading value (F) and the noise quantity (B) of the channel are all calculable. With these parameters, the link quality (LQ) of said communication channel is derived.

REFERENCES:
patent: 5924015 (1999-07-01), Garrison et al.
patent: 7076001 (2006-07-01), Beadle et al.
patent: 2003/0048800 (2003-03-01), Kilfoyle et al.

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