Wireless communications apparatus and method using array antenna
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United States of America Patent
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Aug 5, 2008
Grant Date -
Mar 10, 2005
app pub date -
Sep 2, 2004
filing date -
Sep 9, 2003
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A wireless communication apparatus comprises an array antenna configured to receive a signal at multiple antenna elements; a DoA estimation unit configured to estimate directions of arrival of multiple paths contained in the received signal; an angle spread estimation unit configured to estimate an angle spread of the multiple paths; a first weighting calculation unit configured to estimate a common set of weighting factors for all the paths; a second weighting calculation unit configured to estimate an individual set of weighting factors for each of the multiple paths based on the estimated directions of arrival of the paths; a weighting unit configured to weight the received signal by multiplying the received signal by one of the common set of weighting factors or individual set of weighting factor; and a demodulator configured to demodulate the weighted signal.
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