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Title:
MULTI-CHANNEL TRANSMISSION SYSTEM, TRANSMITTING APPARATUS AND TRANSMITTING METHOD
Document Type and Number:
WIPO Patent Application WO/2007/000964
Kind Code:
A1
Abstract:
A transmitter (1) comprises a spread code generating part (11) that uses the set values of adjustment parameters to generate spread codes from a row or column vector in a spread code matrix comprising trigonometric functions the arguments of which are the adjustment parameters; and a signal multiplexing part (12) that performs spread and multiplex processes of information using the spread codes. The transmitter (1) arranges the signals, which have been subjected to the spread and multiplex processes, onto a plurality of subchannels for transmission.

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Inventors:
SUZUKI TOSHINORI (JP)
Application Number:
PCT/JP2006/312704
Publication Date:
January 04, 2007
Filing Date:
June 26, 2006
Export Citation:
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Assignee:
KDDI CORP (JP)
SUZUKI TOSHINORI (JP)
International Classes:
H04J11/00; H04B1/707; H04J13/10; H04J13/12; H04J13/18; H04W72/04
Domestic Patent References:
WO2000013360A12000-03-09
Foreign References:
JP2002505042A2002-02-12
JPH02168751A1990-06-28
Other References:
GARG D. AND ADACHI F.: "Diversity-coding-orthogonality tradeoff for coded MC-CDMA with high level modulation", COMMUNICATIONS SYSTEMS, 2004. ICCS 2004 THE NINTH INTERNATIONAL CONFERENCE, 6 September 2004 (2004-09-06), pages 650 - 654, XP010743418
YANG L.-L. AND HANZO L.: "Performance of generalized multicarrier DS-CDMA using various chip waveforms", COMMUNICATIONS, IEEE TRANSACTIONS, vol. 51, no. 5, May 2003 (2003-05-01), pages 748 - 752, XP011096773
Attorney, Agent or Firm:
AOYAMA, Masakazu et al. (Yaesu Chuo-ku, Tokyo 53, JP)
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