Title:
無線中継システム、無線中継装置及び無線中継方法
Document Type and Number:
Japanese Patent JP4398752
Kind Code:
B2
Abstract:
A wireless relay system for relaying a radio signal transmitted from a first wireless station to a second wireless station via a wireless relay apparatus is disclosed. The wireless relay system includes a relay control part for receiving transmission symbols transmitted from the first wireless station and refraining from relaying a portion of the symbols, a pilot signal transmission part for transmitting a pilot signal that is inserted into a section of the portion of the transmission symbols, a coupling loop interference wave estimation part for receiving the pilot signal and estimating a coupling loop interference wave based on the pilot signal, and a coupling loop interference wave cancellation part for subtracting the estimated coupling loop interference wave from a reception signal.
Inventors:
Hiromasa Fujii
Hiroto Suda
Satoshi Tanaka
Hiroto Suda
Satoshi Tanaka
Application Number:
JP2004042789A
Publication Date:
January 13, 2010
Filing Date:
February 19, 2004
Export Citation:
Assignee:
NTT DoCoMo, Inc.
International Classes:
H04B7/015; H04J11/00; H04B7/15; H04B7/26; H04J99/00; H04W16/26; H04B7/155
Domestic Patent References:
| JP2005229524A | ||||
| JP11112400A | ||||
| JP11004209A | ||||
| JP2001223628A |
Other References:
関力,伊丹誠 他,中継局における付加遅延挿入によるSFN実現方式の検討,映像情報メディア学会誌,日本,(社)映像情報メディア学会,2000年11月20日,Vol.54, No.11,pages.1576-1583
今村浩一郎 他,地上デジタル放送SFNにおける放送波中継用回り込みキャンセラの基礎検討,映像情報メディア学会誌,日本,(社)映像情報メディア学会,2000年11月20日,Vol.54, No.11,pages.1568-1575
今村浩一郎 他,地上デジタル放送SFNにおける放送波中継用回り込みキャンセラの基礎検討,映像情報メディア学会誌,日本,(社)映像情報メディア学会,2000年11月20日,Vol.54, No.11,pages.1568-1575
Attorney, Agent or Firm:
Tadahiko Ito