WO2008111126A1 - Multi-Carrier通信装置 - Google Patents

Multi-Carrier通信装置 Download PDF

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Publication number
WO2008111126A1
WO2008111126A1 PCT/JP2007/000218 JP2007000218W WO2008111126A1 WO 2008111126 A1 WO2008111126 A1 WO 2008111126A1 JP 2007000218 W JP2007000218 W JP 2007000218W WO 2008111126 A1 WO2008111126 A1 WO 2008111126A1
Authority
WO
WIPO (PCT)
Prior art keywords
sub
signal
carrier
offset
frequency
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/JP2007/000218
Other languages
English (en)
French (fr)
Inventor
Taiji Kondo
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.)
Fujitsu Semiconductor Ltd
Original Assignee
Fujitsu Semiconductor Ltd
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 Fujitsu Semiconductor Ltd filed Critical Fujitsu Semiconductor Ltd
Priority to PCT/JP2007/000218 priority Critical patent/WO2008111126A1/ja
Priority to JP2009503758A priority patent/JP5099118B2/ja
Priority to EP07736877.7A priority patent/EP2124367B1/en
Priority to CN200780051831XA priority patent/CN101617488B/zh
Priority to KR1020097018679A priority patent/KR101158173B1/ko
Publication of WO2008111126A1 publication Critical patent/WO2008111126A1/ja
Priority to US12/554,201 priority patent/US8442147B2/en
Anticipated expiration legal-status Critical
Priority to US13/860,372 priority patent/US8731084B2/en
Ceased legal-status Critical Current

Links

Classifications

    • 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
    • H04L27/2655—Synchronisation arrangements
    • H04L27/2657—Carrier synchronisation
    • H04L27/2659—Coarse or integer frequency offset determination and synchronisation
    • 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
    • H04L27/2602—Signal structure
    • H04L27/261—Details of reference signals
    • 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)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
  • Noise Elimination (AREA)
  • Circuits Of Receivers In General (AREA)

Abstract

　シンセサイザ２１から出力される直交復調器１４－１、１４－２に与えるローカル搬送波に、サブキャリアの帯域幅を単位として、サブキャリアの整数個分を周波数シフトするオフセットを乗算する。オフセットは、信号帯域のガードトーンに含まれる未使用のサブキャリアの数だけ０から順番に計数した値にサブキャリアの帯域幅を乗算した値とする。直交復調する際のローカル搬送波の周波数をオフセットでシフトすることにより、受信機の回路が有する周波数特性によってベースバンド信号のSNRの劣化が特定のサブキャリアの信号に恒常的に起きるのを防ぐ。特に、Pilot信号の劣化が恒常的におきることを防ぐことにより、信号の受信をより精度良く行うことが出来る。
PCT/JP2007/000218 2007-03-13 2007-03-13 Multi-Carrier通信装置 Ceased WO2008111126A1 (ja)

Priority Applications (7)

Application Number Priority Date Filing Date Title
PCT/JP2007/000218 WO2008111126A1 (ja) 2007-03-13 2007-03-13 Multi-Carrier通信装置
JP2009503758A JP5099118B2 (ja) 2007-03-13 2007-03-13 マルチキャリア通信装置、マルチキャリア通信システム、及びマルチキャリア通信方法
EP07736877.7A EP2124367B1 (en) 2007-03-13 2007-03-13 Multi-carrier communication apparatus
CN200780051831XA CN101617488B (zh) 2007-03-13 2007-03-13 多载波通信装置
KR1020097018679A KR101158173B1 (ko) 2007-03-13 2007-03-13 멀티 캐리어 통신 장치
US12/554,201 US8442147B2 (en) 2007-03-13 2009-09-04 Multi-carrier communication apparatus
US13/860,372 US8731084B2 (en) 2007-03-13 2013-04-10 Multi-carrier communication apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP2007/000218 WO2008111126A1 (ja) 2007-03-13 2007-03-13 Multi-Carrier通信装置

Related Child Applications (1)

Application Number Title Priority Date Filing Date
US12/554,201 Continuation US8442147B2 (en) 2007-03-13 2009-09-04 Multi-carrier communication apparatus

Publications (1)

Publication Number Publication Date
WO2008111126A1 true WO2008111126A1 (ja) 2008-09-18

Family

ID=39759077

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2007/000218 Ceased WO2008111126A1 (ja) 2007-03-13 2007-03-13 Multi-Carrier通信装置

Country Status (6)

Country Link
US (2) US8442147B2 (ja)
EP (1) EP2124367B1 (ja)
JP (1) JP5099118B2 (ja)
KR (1) KR101158173B1 (ja)
CN (1) CN101617488B (ja)
WO (1) WO2008111126A1 (ja)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20110032838A1 (en) * 2009-08-04 2011-02-10 Qualcomm Incorporated Mitigation of crs misalignment in coordinated multipoint communications
US8837559B2 (en) 2012-08-16 2014-09-16 Andrew Wireless Systems Gmbh Reducing distortion in repeaters for OFDM signals
US20150063496A1 (en) * 2013-08-27 2015-03-05 Broadcom Corporation Receiver with noise compensation and methods for use therewith

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000278237A (ja) * 1999-03-25 2000-10-06 Toshiba Corp Ｏｆｄｍ用中継装置
JP2001285032A (ja) * 2000-03-31 2001-10-12 Toshiba Corp デジタル放送受信装置
JP2005003623A (ja) * 2003-06-16 2005-01-06 Anritsu Corp 信号解析装置
JP2005150945A (ja) * 2003-11-12 2005-06-09 Kawasaki Microelectronics Kk 通信システムおよび送信装置
JP2005184725A (ja) * 2003-12-24 2005-07-07 Mega Chips Corp Ｏｆｄｍ受信装置およびｏｆｄｍ信号の受信方法

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2689739B2 (ja) * 1990-03-01 1997-12-10 日本電気株式会社 秘話装置
JP3726857B2 (ja) * 1997-05-02 2005-12-14 ソニー株式会社 受信装置および受信方法
DE69902623T2 (de) 1999-03-25 2003-04-10 Kabushiki Kaisha Toshiba, Kawasaki Zwischenverstärker eines OFDM-Übertragungssignals
EP1162803A1 (en) * 2000-06-05 2001-12-12 Telefonaktiebolaget L M Ericsson (Publ) Frequency tracking device and method for a receiver of a multi-carrier communication system
US20020016807A1 (en) * 2000-06-30 2002-02-07 Katsumi Takaoka Recursive discrete fourier transformation method and recursive inverse discrete fourier transformation method
JP3860556B2 (ja) * 2003-04-04 2006-12-20 松下電器産業株式会社 基地局装置及び通信方法
CN1652492A (zh) * 2004-02-02 2005-08-10 中国科学技术大学 基于频域相关检测实现0fdm通信系统时频同步的方法
DE102005013497B4 (de) * 2005-03-23 2007-07-12 Infineon Technologies Ag Steuerbare Frequenzteilerschaltung, Sende-Empfänger mit steuerbarer Frequenzteilerschaltung und Verfahren zur Durchführung eines Loop-Back-Tests

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000278237A (ja) * 1999-03-25 2000-10-06 Toshiba Corp Ｏｆｄｍ用中継装置
JP2001285032A (ja) * 2000-03-31 2001-10-12 Toshiba Corp デジタル放送受信装置
JP2005003623A (ja) * 2003-06-16 2005-01-06 Anritsu Corp 信号解析装置
JP2005150945A (ja) * 2003-11-12 2005-06-09 Kawasaki Microelectronics Kk 通信システムおよび送信装置
JP2005184725A (ja) * 2003-12-24 2005-07-07 Mega Chips Corp Ｏｆｄｍ受信装置およびｏｆｄｍ信号の受信方法

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of EP2124367A4 *

Also Published As

Publication number Publication date
US20090323834A1 (en) 2009-12-31
US20130223546A1 (en) 2013-08-29
US8731084B2 (en) 2014-05-20
EP2124367A4 (en) 2014-02-26
EP2124367B1 (en) 2017-08-30
EP2124367A1 (en) 2009-11-25
JPWO2008111126A1 (ja) 2010-06-24
US8442147B2 (en) 2013-05-14
KR101158173B1 (ko) 2012-06-20
CN101617488B (zh) 2013-10-23
JP5099118B2 (ja) 2012-12-12
KR20100005004A (ko) 2010-01-13
CN101617488A (zh) 2009-12-30

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