Multiplex communications – Generalized orthogonal or special mathematical techniques
Reexamination Certificate
2011-06-28
2011-06-28
Pham, Chi H (Department: 2471)
Multiplex communications
Generalized orthogonal or special mathematical techniques
Reexamination Certificate
active
07969857
ABSTRACT:
Systems and methods for transmitting and receiving OFDM symbols are provided which enable the otherwise wasted transmission time normally used as a prefix for each OFDM symbol to contain useful information. At the receiver, the received signal is processed to convert received OFDM symbols from a linear convolution with the channel to a cyclic convolution.
REFERENCES:
patent: 6693920 (2004-02-01), Montojo et al.
patent: 6799023 (2004-09-01), Pinola et al.
patent: 6907092 (2005-06-01), Yakhnich et al.
patent: 6928062 (2005-08-01), Krishnan et al.
patent: 7298692 (2007-11-01), Hiramatsu et al.
patent: 7298722 (2007-11-01), Sudo
patent: 2002/0041635 (2002-04-01), Ma
patent: 2002/0122381 (2002-09-01), Wu
patent: 2003/0058787 (2003-03-01), Vandenameele-Lepla
patent: 2003/0081538 (2003-05-01), Walton et al.
patent: 2004/0081131 (2004-04-01), Walton et al.
patent: 2004/0085892 (2004-05-01), Walton et al.
patent: 2004/0252630 (2004-12-01), Alapuranen
patent: 2354196 (2003-01-01), None
patent: 0209297 (2002-01-01), None
patent: 02093962 (2002-11-01), None
Lawrey, Eric, OFDM as a modulation technique for wireless communications with a CDMA comparison, 2001, section 1.3.10.
Muquet, Bertrand; wang, ZhengdaO; Giannakis, Georgios B.; de Courville, Marc; Duhamel, Pierre; Cyclic Prefixing or Zero Padding for Wireless Multicarrier Transmissions?; IEEE Transactions on Communications, vol. 50, No. 12, Dec. 2002; pp. 2136-2148.
DesBrisay, Greg; Cisco Systems, Inc.; Basics of Orthogonal Frequency Division Multiplexing (OFDM); 2000.
Witschnig, H. et al., “A Different Look on Cyclic Prefix for SC/FDE” Personal, indoor and Mobile Radio Communications, 2002. The 13thIEEE International Symposium On, vol. 2, Sep. 15-18, 2002, pp. 824-828.
Deneire, L. et al., “Training Sequence vs. Cyclic Prefix A New Look on Single Carrier Communication” Global Telecommunications Confrence, 2000. Globecom '00. IEEE, vol. 2, Nov. 27-Dec. 1, 2000, pp. 1056-1060.
Benvenuto, N. et al., “On the Comparison Between OFDM and Single Carrier Modulation with a DFE Using a Frequency-Domain Feedforward Filter”. IEEE Transactions on Communications, vol. 50, issue 6, Jun. 2002, pp. 947-955.
Bi, Q. et al., “Performance of 1xEV-DO Third-Generation Wireless High-Speed Data Systems”. Bell Labs Technical Journal, vol. 7, issue 3, Wiley Periodicals, Inc., Mar. 2003, pp. 97-107.
Witschnig, H; et al., “A Different Look on Cyclic Prefix for SC/FDE”, The 13thIEEE International Symposium on Personal, Indoor and Mobile Radio Communications, PIMRC 2002, Pavilhao Altantico, Lisboa, Portugal, Sep. 15-18, 2002, pp. 824-828.
Royer Claude
Tong Wen
Wu Shiquan
Zhu Peiying
Adhami Mohammad S
Nortel Networks Limited
Pham Chi H
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