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Patent Searching and Data


Title:
COMMUNICATION DEVICE AND RADIO COMMUNICATION SYSTEM
Document Type and Number:
WIPO Patent Application WO/2007/142119
Kind Code:
A1
Abstract:
[PROBLEMS] To provide a communication device which multiplexes a first pilot signal on a transmission unit and multiplexes a second pilot signal according to the reception quality. [MEANS FOR SOLVING PROBLEMS] A communication device receives a transmission unit formed by a plurality of symbols and having a first pilot signal multiplexed from a communication destination device. The communication device includes a pilot control information generation unit (32) which generates pilot signal control information requesting for allocation of a second pilot signal for a symbol different from the symbol for which the first pilot signal has been allocated if a difference obtained by subtracting the reception quality of the pilot signal from the reception quality of the symbol different from the symbol for which the first pilot signal has been allocated is not smaller than a difference threshold value.

Inventors:
TO, Shimpei (())
藤 晋平 (())
HAMAGUCHI, Yasuhiro (())
Application Number:
JP2007/061101
Publication Date:
December 13, 2007
Filing Date:
May 31, 2007
Export Citation:
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Assignee:
Sharp Kabushiki Kaisha (22-22, Nagaike-cho Abeno-ku, Osaka-sh, Osaka 22, 5458522, JP)
シャープ株式会社 (〒22 大阪府大阪市阿倍野区長池町22番22号 Osaka, 5458522, JP)
TO, Shimpei (())
藤 晋平 (())
International Classes:
H04J11/00; H04B7/26; H04J1/00; H04J11/00; H04B7/26; H04J1/00
Attorney, Agent or Firm:
FUKUCHI, Takeo (3-1 Sakuragaoka-cho, Shibuya-ku Tokyo, 31, 1500031, JP)
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