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Title:
無線基地局装置及び無線通信方法
Document Type and Number:
Japanese Patent JP5108794
Kind Code:
B2
Abstract:
A radio base station apparatus and radio communication method are provided whereby reception characteristics do not deteriorate even when the number of multiplexed users of an uplink control channel signal is increased. The radio communication method of the present invention includes a transmission step of a mobile terminal apparatus transmitting an uplink control channel signal orthogonally multiplexed among users including reference signals, a receiving step of the radio base station apparatus receiving the uplink control channel signal and a demodulation step of demodulating the uplink control channel signal using maximum likelihood detection.

Inventors:
Teruo Kawamura
Nobuhiko Miki
Mamoru Sawahashi
Application Number:
JP2009002063A
Publication Date:
December 26, 2012
Filing Date:
January 07, 2009
Export Citation:
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Assignee:
NTT DoCoMo, Inc.
International Classes:
H04J11/00; H04B1/3822; H04B1/40; H04B1/707; H04B1/7073; H04J13/22
Domestic Patent References:
JP2004304473A
Other References:
高橋 亮太 外3名,チャネル符号化情報を用いる最尤検出を適用したときの巡回シフト多重およびブロック拡散多重の特性比較,電子情報通信学会技術研究報告,2008年12月11日,Vol.108, No.358,pp.49-54,RCS2008-159
高橋 亮太 外3名,巡回シフト多重を用いるCDMAにおけるチャネル符号化情報を用いる最尤検出の特性,2008年電子情報通信学会通信ソサイエティ大会講演論文集1,2008年 9月 2日,p.339,B-5-26
Attorney, Agent or Firm:
Hiroyoshi Aoki
Amada Masayuki
Yoshimasa Okada