Pulse or digital communications – Receivers – Automatic frequency control
Reexamination Certificate
2007-07-24
2010-11-09
Torres, Juan A (Department: 2611)
Pulse or digital communications
Receivers
Automatic frequency control
Reexamination Certificate
active
07830990
ABSTRACT:
A method for estimating frequency offset is provided. First, a baseband signal with a preamble featuring quasi-periodic property is received. Next, the quasi-periodic property of the preamble of the received baseband signal is reconstructed by interpolation. Next, a frequency offset angle is estimated by using the reconstructed baseband signal. The accuracy of estimating frequency offset is increased because of better reconstructed quasi-periodic property of the preamble.
REFERENCES:
patent: 5760984 (1998-06-01), Spurbeck et al.
patent: 5835295 (1998-11-01), Behrens
patent: 5867478 (1999-02-01), Baum et al.
patent: 5892632 (1999-04-01), Behrens et al.
patent: 6111710 (2000-08-01), Feyh et al.
patent: 6134286 (2000-10-01), Chennakeshu et al.
patent: 6363084 (2002-03-01), Dejonghe
patent: 6714603 (2004-03-01), Ashley et al.
patent: 6993084 (2006-01-01), Eberlein et al.
patent: 6996195 (2006-02-01), Kadous
patent: 7050419 (2006-05-01), Azenkot et al.
patent: 7088672 (2006-08-01), Kim
patent: 7564931 (2009-07-01), Venkataramani et al.
patent: 2003/0137765 (2003-07-01), Yamazaki et al.
patent: 2004/0101068 (2004-05-01), Wang et al.
patent: 2005/0213679 (2005-09-01), Yamagata
patent: 2006/0018414 (2006-01-01), Arkhipenkov et al.
patent: 2006/0200034 (2006-09-01), Ricci et al.
patent: 2006/0200035 (2006-09-01), Ricci et al.
patent: 2008/0181097 (2008-07-01), Goldberg et al.
patent: 2009/0135892 (2009-05-01), Kwak
patent: 1665230 (2005-09-01), None
Xiao, “On the design of sinc interpolator for pilot symbol assisted modulation systems,” IEEE Trans. Wireless Communications, vol. 5, pp. 2578-2585, Sep. 2006.
Li, “Pilot-symbol-aided channel estimation for OFDM in wireless systems”, IEEE Trans. Vehicular Technology, pp. 1207-1215, Jul. 2000.
Kim, “New Rayleigh fading channel estimator based on PSAM channel sounding technique,” in Proc. IEEE ICC'97,1997, vol. 3, pp. 1518-1520.
Ai Ling Chua, “Improved channel estimation for OFDM based systems with transmitter diversity,” Conference Record of the Thirty-Seventh Asilomar Conference on Signals, Systems and Computers, 2003 vol. 1 Publication Year: 2003 , pp. 1142-1146 vol. 1.
“1st Office Action of China Counterpart Application”, issued on May 27, 2010, p. 1-p. 5.
Su Yu-Ted
Yang Shih-Hsien
Zheng Yan-Xiu
Industrial Technology Research Institute
Jianq Chyun IP Office
Torres Juan A
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