Pulse or digital communications – Spread spectrum – Direct sequence
Reexamination Certificate
2004-09-02
2008-08-05
Payne, David C. (Department: 2611)
Pulse or digital communications
Spread spectrum
Direct sequence
C375S347000
Reexamination Certificate
active
07408977
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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Higuchi Kenichi
Kataoka Takashi
Sawahashi Mamoru
Taoka Hidekazu
Nguyen Leon-Viet Q
NTT DoCoMo Inc.
Oblon & Spivak, McClelland, Maier & Neustadt P.C.
Payne David C.
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