Adaptive channel estimator and adaptive channel estimation...

Details Adaptive channel estimator and adaptive channel estimation... Adaptive channel estimator and adaptive channel estimation...

2007-05-16

2011-11-15

Deppe, Betsy (Department: 2611)

Pulse or digital communications

Receivers

C375S260000

Reexamination Certificate

active

08059753

ABSTRACT:
An adaptive channel estimator for estimating channel frequency responses when receiving OFDM symbols. The adaptive channel estimator comprises a channel estimator and a channel tracking module. The channel estimator generates one first channel frequency response for each OFDM symbol when operated in the first mode, and generates the channel frequency responses of a second channel frequency response for every N-th OFDM symbols when operated in the second mode, wherein N is a constant integer exceeding one and j is a non-negative integer. The channel tracking module indicates a channel status, and controls the channel estimator to operate in a first mode or a second mode according to the channel status.

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Taiwanese Office Action dated May 25, 2011; pp. 1-7.

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