CHANNEL ESTIMATION METHOD FOR OVERCOMING CHANNEL DISCONTINUITY BETWEEN SUBBANDS OF AN ORTHOGONAL FREQUENCY DIVISION MULTIPLEXING (OFDM) SYSTEM
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United States of America Patent
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Issued Date -
Feb 5, 2015
app pub date -
Apr 7, 2013
filing date -
Jan 17, 2013
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Abandoned
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Abstract
A method of processing signals. The method includes receiving a communication signal in a time domain, converting the communication signal to a frequency domain, providing resource blocks based on the communication signal in the frequency domain, the resource blocks including a first resource block and a second resource block, selecting pilot signals from the first resource block and pilot signals from the second resource block, determining a first set of phase and amplitude differences among the pilot signals, determining a second set of phase and amplitude differences among the pilot signals, determining a third set of phase and amplitude differences between the pilot signals and the pilot signals, generating a first waveform using at least the first and third set of phase and amplitude differences, applying a smoothing filter against the first waveform to generate a second waveform, and converting the third waveform from the frequency domain to the time domain.
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