DEVICE AND METHOD FOR HANDLING EFFECTIVE PATH OF CHANNEL IMPULSE RESPONSE
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United States of America Patent
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Issued Date -
Feb 1, 2018
app pub date -
Feb 3, 2017
filing date -
Aug 1, 2016
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Abstract
A communication device includes: a receiving circuit, receiving a plurality of pilot signals; a channel estimating circuit, coupled to the receiving circuit, estimating a channel frequency response according to the pilot signals; a transforming circuit, coupled to the channel estimating circuit, transforming the channel frequency response to a channel impulse response according to a time-frequency transform operation; a calculating circuit, coupled to the transforming circuit, determining a threshold according to a maximum path intensity of a plurality of paths of the channel impulse response, a signal-to-noise ratio (SNR) and a predetermined constant; and a selecting circuit, coupled to the calculating circuit, determining at least one effective path from the paths of the channel impulse response according to the threshold.
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