Pulse or digital communications – Systems using alternating or pulsating current – Plural channels for transmission of a single pulse train
Reexamination Certificate
2011-02-15
2011-02-15
Liu, Shuwang (Department: 2611)
Pulse or digital communications
Systems using alternating or pulsating current
Plural channels for transmission of a single pulse train
C375S260000, C375S295000, C375S316000
Reexamination Certificate
active
07889805
ABSTRACT:
A mobile station transmitting and receiving method and a corresponding mobile station transmitter and receiver of a smart antenna system for forming uplink eigenbeams of the OFDM/TDD (orthogonal frequency division multiplex/time division duplex), wherein OFDM symbols are received from a base station through a downlink via multiple antennas (250) and an FFT (fast Fourier transform) is performed on the received OFDM symbols by the FFT units (270). By means of a channel estimator (290) the channels are estimated and a beam weight generator (310) generates respective beam weights from the channels of the respective pilot tones of the respective subcarriers according to the channel estimation result. A beam weight multiplier (230) forms the uplink beam by multiplying the respective beam weights with the output of the signal repeater (220) and IFFT units (240) generate respective OFDM symbols which are transmitted via multiple antennas (250) through an uplink.
REFERENCES:
patent: 6768913 (2004-07-01), Molnar et al.
patent: 7020110 (2006-03-01), Walton et al.
patent: 7113548 (2006-09-01), Tanaka et al.
patent: 7573946 (2009-08-01), Sandhu
patent: 7613248 (2009-11-01), Ketchum et al.
patent: 2002/0196734 (2002-12-01), Tanaka et al.
patent: 2004/0042439 (2004-03-01), Menon et al.
patent: 2003-318853 (2003-11-01), None
patent: WO 97/00543 (1997-01-01), None
patent: WO 02/33852 (2002-04-01), None
Huang et al., A Reduced Complexity Coded OFDM System with MIMO Antennas for Broadband Wireless Communications, Global Telecommunications Conference, Nov. 12, 2002, vol. 1, pp. 661-665.
Choi In-Kyeong
Hwang Seung-Ku
Kim Seong-Rag
Kwon Dong-Seung
Electronics and Telecommunications Research Institute
Hanaro Telecom. Inc.
KT Corporation
KT-Freetel Co., Ltd.
Liu Shuwang
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