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Patent Searching and Data


Title:
WIRELESS COMMUNICATION SYSTEM, COMMUNICATION CONTROL APPARATUS, COMMUNICATION TERMINAL APPARATUS AND CONTROL PROGRAM
Document Type and Number:
WIPO Patent Application WO/2012/026246
Kind Code:
A1
Abstract:
In a case where communications are performed in such a manner that identical frequencies, which are at least some of a plurality of frequencies, are used, at the same time, to cause signals to overlap each other, retransmissions can be efficiently performed. A wireless communication system permits the coincidences of some or all of the frequencies that are used for a plurality of first communication apparatuses to transmit radio signals to a second communication apparatus. In the wireless communication system, when the first communication apparatuses perform the signal retransmissions to the second communication apparatus, only partial spectra (6, 8), which are respective parts of the initially-transmitted signals (1, 2), are transmitted to the second communication apparatus. The partial spectra (6, 8) correspond to a spectrum (4) located at the frequencies that were coincident with each other when the first communication apparatuses transmitted the initially-transmitted signals.

Inventors:
YOKOMAKURA KAZUNARI
HAMAGUCHI YASUHIRO
NAKAMURA OSAMU
GOTO JUNGO
TAKAHASHI HIROKI
Application Number:
PCT/JP2011/066475
Publication Date:
March 01, 2012
Filing Date:
July 20, 2011
Export Citation:
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Assignee:
SHARP KK (JP)
YOKOMAKURA KAZUNARI
HAMAGUCHI YASUHIRO
NAKAMURA OSAMU
GOTO JUNGO
TAKAHASHI HIROKI
International Classes:
H04J11/00; H04L1/16; H04W28/04
Foreign References:
JP2009105746A2009-05-14
JP2003309535A2003-10-31
JP2003152691A2003-05-23
JP2011119844A2011-06-16
Other References:
JUNGO GOTO ET AL.: "A Study on Design of Turbo Code for Spectrum-Overlapped Resource Management", IEICE TECHNICAL REPORT, vol. 109, no. 440, 24 February 2010 (2010-02-24), pages 321 - 326
TOSHIAKI OHNISHI ET AL.: "A Partial Spectrum Retransmission Scheme using a Dynamic Spectrum Control for Broadband Single Carrier Transmission Systems", THE 18TH ANNUAL IEEE INTERNATIONAL SYMPOSIUM ON PERSONAL, INDOOR AND MOBILE RADIO COMMUNICATIONS, 2007. PIMRC 2007, 3 September 2007 (2007-09-03)
TOSHIAKI ONISHI ET AL.: "A Study on Mutual Information based partial Waveform Re- Transmission Control Technique", IEICE TECHNICAL REPORT, vol. 106, no. 480, 19 January 2007 (2007-01-19), pages 109 - 114
TOSHIAKI ONISHI ET AL.: "A Study on Throughput Performances of Dynamic Spectrum Control based Partial Spectrum Re-transmission Technique", 2007 NEN THE INSTITUTE OF ELECTRONICS, INFORMATION AND COMMUNICATION ENGINEERS SOGO TAIKAI KOEN RONBUNSHU TSUSHIN 1, 7 March 2007 (2007-03-07), pages 535
Attorney, Agent or Firm:
FUKUCHI TAKEO (JP)
Fukuchi Takeo (JP)
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Claims: