Communications: directive radio wave systems and devices (e.g. – Directive – Including a steerable array
Reexamination Certificate
2007-01-09
2007-01-09
Tarcza, Thomas H. (Department: 3662)
Communications: directive radio wave systems and devices (e.g.,
Directive
Including a steerable array
C342S378000, C342S383000, C375S144000, C375S148000
Reexamination Certificate
active
10939480
ABSTRACT:
A hybrid beamforming apparatus and method are proposed for a communication system. The hybrid beamforming apparatus includes a plurality of antennas, a plurality of FFT, a plurality of hybrid weight-coefficient generators and a plurality of adders. In each of the hybrid weight-coefficient generators, the weight coefficient for each subcarrier is calculated by a time-domain correlation matrix and a cross-correlation vector, which is calculated by a frequency domain signal and a training signal. The hybrid beamforming apparatus and method according to the present invention can enhance immunity for multipath effect with lower system complexity.
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patent: 6504506 (2003-01-01), Thomas et al.
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patent: 2003309537 (2003-10-01), None
English translation of JP 2003309537 A.
C.K. Kim et al., Adaptive beamforming for an OFDM system, IEEE 49th Vehicular Technology Conference, vol. 1, p. 484-488, Jul. 1999.
Chuang Wei Ping
Jian Yung-Yih
Kuo Chun-Chun
Tsai Jiann-An
Industrial Technology Research Institute
Mull F H
Rabin & Berdo P.C.
Tarcza Thomas H.
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