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WO2008139624A1 - Ｏｆｄｍ送信装置及びｏｆｄｍ受信装置 - Google Patents

Ｏｆｄｍ送信装置及びｏｆｄｍ受信装置 Download PDF

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Publication number
WO2008139624A1
WO2008139624A1 PCT/JP2007/059956 JP2007059956W WO2008139624A1 WO 2008139624 A1 WO2008139624 A1 WO 2008139624A1 JP 2007059956 W JP2007059956 W JP 2007059956W WO 2008139624 A1 WO2008139624 A1 WO 2008139624A1
Authority
WO
WIPO (PCT)
Prior art keywords
feedback information
symbol length
ofdm
selection section
received
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/JP2007/059956
Other languages
English (en)
French (fr)
Inventor
Jun Yamagishi
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Panasonic Corp
Original Assignee
Panasonic Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Panasonic Corp filed Critical Panasonic Corp
Priority to PCT/JP2007/059956 priority Critical patent/WO2008139624A1/ja
Priority to JP2009513954A priority patent/JPWO2008139624A1/ja
Publication of WO2008139624A1 publication Critical patent/WO2008139624A1/ja
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L25/00—Baseband systems
    • H04L25/02—Details ; arrangements for supplying electrical power along data transmission lines
    • H04L25/03—Shaping networks in transmitter or receiver, e.g. adaptive shaping networks
    • H04L25/03006—Arrangements for removing intersymbol interference
    • H04L25/03159—Arrangements for removing intersymbol interference operating in the frequency domain
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L25/00—Baseband systems
    • H04L25/02—Details ; arrangements for supplying electrical power along data transmission lines
    • H04L25/03—Shaping networks in transmitter or receiver, e.g. adaptive shaping networks
    • H04L25/03006—Arrangements for removing intersymbol interference
    • H04L25/03343—Arrangements at the transmitter end
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/26—Systems using multi-frequency codes
    • H04L27/2601—Multicarrier modulation systems
    • H04L27/2626—Arrangements specific to the transmitter only
    • H04L27/2646—Arrangements specific to the transmitter only using feedback from receiver for adjusting OFDM transmission parameters, e.g. transmission timing or guard interval length
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/26—Systems using multi-frequency codes
    • H04L27/2601—Multicarrier modulation systems
    • H04L27/2647—Arrangements specific to the receiver only

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Power Engineering (AREA)
  • Transmitters (AREA)

Abstract

　様々な通信能力の状態にある複数の無線通信装置の間で通信が行われる無線通信システムにおいても、良好なＢＥＲ特性を維持しつつ、伝送効率を高めることができるＯＦＤＭ送信装置及びＯＦＤＭ受信装置。無線端末装置（１００）に、受信ＯＦＤＭ信号のシンボル長と選択区間とのバランスを判定する設定状態バランス判定部（１７０）と、選択区間がシンボル長より短い場合、受信フーリエ変換区間、受信ＯＦＤＭ信号の最大遅延時間及び周波数領域等化処理におけるインパルス応答の広がりを含む、送信側へのフィードバック情報を生成するフィードバック情報生成部（１８０）と、を設けた。これによりフィードバック情報を用いて送信側がシンボル長を調整することができるので、設定状態のアンバランスに起因して受信側の無線端末装置（１００）で起こるＢＥＲの低下を防止することができる。
PCT/JP2007/059956 2007-05-15 2007-05-15 Ｏｆｄｍ送信装置及びｏｆｄｍ受信装置 Ceased WO2008139624A1 (ja)

Priority Applications (2)

Application Number Priority Date Filing Date Title
PCT/JP2007/059956 WO2008139624A1 (ja) 2007-05-15 2007-05-15 Ｏｆｄｍ送信装置及びｏｆｄｍ受信装置
JP2009513954A JPWO2008139624A1 (ja) 2007-05-15 2007-05-15 Ｏｆｄｍ送信装置及びｏｆｄｍ受信装置

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP2007/059956 WO2008139624A1 (ja) 2007-05-15 2007-05-15 Ｏｆｄｍ送信装置及びｏｆｄｍ受信装置

Publications (1)

Publication Number Publication Date
WO2008139624A1 true WO2008139624A1 (ja) 2008-11-20

Family

ID=40001853

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2007/059956 Ceased WO2008139624A1 (ja) 2007-05-15 2007-05-15 Ｏｆｄｍ送信装置及びｏｆｄｍ受信装置

Country Status (2)

Country Link
JP (1) JPWO2008139624A1 (ja)
WO (1) WO2008139624A1 (ja)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2010074216A1 (ja) * 2008-12-25 2010-07-01 日本電気株式会社 無線基地局、無線通信制御方法およびプログラム

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2004047348A1 (ja) * 2002-11-20 2004-06-03 Ntt Docomo, Inc. 通信システム、通信方法、送信装置、受信装置及び制御プログラム
WO2006008793A1 (ja) * 2004-07-16 2006-01-26 Fujitsu Limited シングルキャリア受信機における周波数領域イコライゼーション方法及び装置
WO2006115246A1 (ja) * 2005-04-25 2006-11-02 Matsushita Electric Industrial Co., Ltd. 無線通信装置および無線通信方法

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2004047348A1 (ja) * 2002-11-20 2004-06-03 Ntt Docomo, Inc. 通信システム、通信方法、送信装置、受信装置及び制御プログラム
WO2006008793A1 (ja) * 2004-07-16 2006-01-26 Fujitsu Limited シングルキャリア受信機における周波数領域イコライゼーション方法及び装置
WO2006115246A1 (ja) * 2005-04-25 2006-11-02 Matsushita Electric Industrial Co., Ltd. 無線通信装置および無線通信方法

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
TOMEBA H., TAKEDA K., ADACHI F.: "Multi Career Denso ni okeru Block-san Kansho o Yokuatsu suru Shuhasu Ryoiki Toka", TECHNICAL REPORT OF IEICE RCS2005-18, May 2005 (2005-05-01), pages 11 - 15, XP003024101 *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2010074216A1 (ja) * 2008-12-25 2010-07-01 日本電気株式会社 無線基地局、無線通信制御方法およびプログラム

Also Published As

Publication number Publication date
JPWO2008139624A1 (ja) 2010-07-29

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