DE602006017296D1 - Verzögerungsmessung in einem OFDM Empfänger - Google Patents

Verzögerungsmessung in einem OFDM Empfänger

Info

Publication number
DE602006017296D1
DE602006017296D1 DE602006017296T DE602006017296T DE602006017296D1 DE 602006017296 D1 DE602006017296 D1 DE 602006017296D1 DE 602006017296 T DE602006017296 T DE 602006017296T DE 602006017296 T DE602006017296 T DE 602006017296T DE 602006017296 D1 DE602006017296 D1 DE 602006017296D1
Authority
DE
Germany
Prior art keywords
delay measurement
ofdm receiver
ofdm
receiver
delay
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.)
Active
Application number
DE602006017296T
Other languages
English (en)
Inventor
Hiromasa Fuji
Hitoshi Yoshino
Takatoshi Sugiyama
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.)
NTT Docomo Inc
Original Assignee
NTT Docomo Inc
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 NTT Docomo Inc filed Critical NTT Docomo Inc
Publication of DE602006017296D1 publication Critical patent/DE602006017296D1/de
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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
    • H04L25/0202—Channel estimation
    • H04L25/0204—Channel estimation of multiple channels
    • 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
    • H04L25/0202—Channel estimation
    • H04L25/0212—Channel estimation of impulse response
    • 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
    • H04L27/2662—Symbol 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
    • H04L27/2647—Arrangements specific to the receiver only
    • H04L27/2655—Synchronisation arrangements
    • H04L27/2668—Details of algorithms
    • H04L27/2673—Details of algorithms characterised by synchronisation parameters
    • H04L27/2675—Pilot or known symbols
    • 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
    • H04L27/2668—Details of algorithms
    • H04L27/2673—Details of algorithms characterised by synchronisation parameters
    • H04L27/2676—Blind, i.e. without using known symbols
    • 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
    • H04L27/2689—Link with other circuits, i.e. special connections between synchronisation arrangements and other circuits for achieving synchronisation
    • H04L27/2695—Link with other circuits, i.e. special connections between synchronisation arrangements and other circuits for achieving synchronisation with channel estimation, e.g. determination of delay spread, derivative or peak tracking
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W56/00—Synchronisation arrangements
    • H04W56/0055—Synchronisation arrangements determining timing error of reception due to propagation delay
    • H04W56/0065—Synchronisation arrangements determining timing error of reception due to propagation delay using measurement of signal travel time

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Power Engineering (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
DE602006017296T 2005-06-15 2006-06-14 Verzögerungsmessung in einem OFDM Empfänger Active DE602006017296D1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2005175781A JP4588548B2 (ja) 2005-06-15 2005-06-15 受信装置及び受信方法

Publications (1)

Publication Number Publication Date
DE602006017296D1 true DE602006017296D1 (de) 2010-11-18

Family

ID=36992694

Family Applications (1)

Application Number Title Priority Date Filing Date
DE602006017296T Active DE602006017296D1 (de) 2005-06-15 2006-06-14 Verzögerungsmessung in einem OFDM Empfänger

Country Status (5)

Country Link
US (1) US7672221B2 (de)
EP (1) EP1734715B8 (de)
JP (1) JP4588548B2 (de)
CN (1) CN100574304C (de)
DE (1) DE602006017296D1 (de)

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JP4559316B2 (ja) * 2005-07-20 2010-10-06 日本放送協会 遅延プロファイル測定方法及び装置
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US8189621B2 (en) 2006-05-12 2012-05-29 Microsoft Corporation Stack signaling to application with lack of requested bandwidth
US9420603B2 (en) * 2006-09-08 2016-08-16 Qualcomm Incorporated Recovery from resource mismatch in a wireless communication system
EP1903689B1 (de) * 2006-09-22 2016-11-09 Mitsubishi Electric R&D Centre Europe B.V. Verfahren und Vorrichtung zur Übertragung von Signalen, die Pilotensymbolmuster entsprechen
US7830994B2 (en) * 2006-10-18 2010-11-09 Analog Devices, Inc. Channel estimation system and method
US8144793B2 (en) 2006-12-12 2012-03-27 Microsoft Corporation Cognitive multi-user OFDMA
DE602007014174D1 (de) * 2007-02-05 2011-06-09 Sequans Comm Verfahren und Vorrichtung zur Zeitsynchronisation und Scanning von Nachbarzellen für zelluläre OFDM-Systeme
JP2008219498A (ja) * 2007-03-05 2008-09-18 Oki Electric Ind Co Ltd 中継通信システム
US7929623B2 (en) * 2007-03-30 2011-04-19 Microsoft Corporation FEC in cognitive multi-user OFDMA
CN101641921B (zh) * 2007-04-06 2013-01-23 松下电器产业株式会社 发送装置和单边带信号生成方法
US7970085B2 (en) 2007-05-08 2011-06-28 Microsoft Corporation OFDM transmission and reception for non-OFDMA signals
US8300715B2 (en) * 2007-07-10 2012-10-30 Qualcomm Incorporated Method and apparatus for reuse of WAN infrastructure resources in a wireless peer-to-peer (P2P) network
CN101796788B (zh) 2007-08-31 2016-11-16 松下电器产业株式会社 通信装置和通信方法
US8374130B2 (en) 2008-01-25 2013-02-12 Microsoft Corporation Orthogonal frequency division multiple access with carrier sense
CN101299733B (zh) * 2008-03-05 2012-05-16 中国科学院嘉兴无线传感网工程中心 一种应用于无线传感网的最小均方误差信道估计装置
US8520500B2 (en) * 2008-03-28 2013-08-27 Qualcomm Incorporated Buffered demod and demap functions
WO2009143559A1 (en) * 2008-05-26 2009-12-03 Commonwealth Scientific And Industrial Research Organisation Measurement of time of arrival
US8503283B2 (en) * 2008-06-12 2013-08-06 Nokia Corporation Channel access protocol for wireless communication
US8275074B2 (en) * 2009-02-17 2012-09-25 Telefonaktiebolaget Lm Ericsson (Publ) OFDM receiver for dispersive environment
TWI422193B (zh) * 2009-05-11 2014-01-01 Mstar Semiconductor Inc 通道估測裝置與方法
CN101938435B (zh) * 2009-06-30 2013-03-20 中兴通讯股份有限公司 一种正交频分复用系统的时偏估计装置及方法
WO2012055065A1 (en) * 2010-10-25 2012-05-03 Telefonaktiebolaget L M Ericsson (Publ) Method and arrangement in wireless communications system
WO2012109782A1 (en) * 2011-02-14 2012-08-23 Qualcomm Incorporated Pilot signal cancellation scheme for wireless mobile broadband systems based on ofdm
EP2720500B1 (de) * 2011-06-13 2016-05-11 Fujitsu Limited Mobilstation, basisstation, kommunikationssystem und kommunikationsverfahren
CN102386888A (zh) * 2011-09-28 2012-03-21 李军 一种点频滤波方法、装置及其系统
KR101977593B1 (ko) 2012-06-25 2019-08-28 삼성전자주식회사 복수의 안테나들을 이용한 ｍｉｍｏ 다중화에 기반하여 전송단에서 시크릿 정보를 전송하는 방법 및 수신단에서 시크릿 정보를 수신하는 방법
CN102833016B (zh) * 2012-08-20 2014-11-05 电子科技大学 一种在多径环境下针对同源信号时差的测定方法
JP5824441B2 (ja) * 2012-11-06 2015-11-25 日本電信電話株式会社 通信装置、チャネル情報取得方法、及び無線通信システム
WO2016133044A1 (ja) * 2015-02-20 2016-08-25 日本電気株式会社 受信装置、受信方法
CN106304313A (zh) * 2015-05-21 2017-01-04 中兴通讯股份有限公司 定时偏移的处理方法及装置
US10158432B2 (en) 2015-10-22 2018-12-18 Photonic Systems, Inc. RF signal separation and suppression system and method
US10623986B2 (en) 2015-10-22 2020-04-14 Photonic Systems, Inc. RF signal separation and suppression system and method
EP3349372B1 (de) * 2017-01-11 2019-12-04 Volkswagen Aktiengesellschaft Verfahren zur einstellung der störpegel zur drahtlosen kommunikation von einer ersten mobilstation zu einer zweiten mobilstation und geeignete mobilstation zur verwendung mit dem verfahren und angepasstes fahrzeug
EP3625941A4 (de) * 2017-04-21 2020-12-30 Photonic Systems, Inc. Rf-signaltrennung sowie system und verfahren zur unterdrückung
JP7015648B2 (ja) * 2017-06-16 2022-02-03 株式会社東芝 無線通信装置および無線通信方法
WO2019172412A1 (ja) * 2018-03-09 2019-09-12 日本電気株式会社 無線装置及びチャネル予測方法
US20190044626A1 (en) * 2018-05-14 2019-02-07 Intel Corporation Method and apparatus for detecting and locating a fault in a cable network

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JPH09266466A (ja) * 1996-03-28 1997-10-07 Sumitomo Electric Ind Ltd デジタル伝送システム
JPH10190562A (ja) 1996-12-26 1998-07-21 Toshiba Corp 移動通信システムの基地局間フレーム同期方式およびこの方式を適用した基地局装置
US5867478A (en) 1997-06-20 1999-02-02 Motorola, Inc. Synchronous coherent orthogonal frequency division multiplexing system, method, software and device
JP3694396B2 (ja) 1997-10-20 2005-09-14 松下電器産業株式会社 無線通信装置及び無線通信方法
US7548506B2 (en) * 2001-10-17 2009-06-16 Nortel Networks Limited System access and synchronization methods for MIMO OFDM communications systems and physical layer packet and preamble design
JP3677492B2 (ja) * 2002-07-31 2005-08-03 松下電器産業株式会社 マルチキャリア送信装置およびマルチキャリア送信方法
JP4276009B2 (ja) 2003-02-06 2009-06-10 株式会社エヌ・ティ・ティ・ドコモ 移動局、基地局、無線伝送プログラム、及び無線伝送方法
DE10331311B4 (de) * 2003-07-10 2008-02-07 Siemens Ag Verfahren zur Synchronisation eines in Funkzellen aufgeteilten Funkkommunikationssystems
US7339999B2 (en) * 2004-01-21 2008-03-04 Qualcomm Incorporated Pilot transmission and channel estimation for an OFDM system with excess delay spread
US7418046B2 (en) * 2004-07-22 2008-08-26 Qualcomm Inc. Pilot transmission and channel estimation for multiple transmitters
JP2006140689A (ja) * 2004-11-11 2006-06-01 Matsushita Electric Ind Co Ltd マルチアンテナ通信装置および通信相手選択方法
WO2006075770A1 (ja) * 2005-01-11 2006-07-20 Nec Corporation 基地局装置、無線伝送システム、無線基地局用プログラム、及びタイミング推定方法

Also Published As

Publication number Publication date
EP1734715A2 (de) 2006-12-20
EP1734715A3 (de) 2008-12-10
EP1734715B8 (de) 2011-01-19
EP1734715B1 (de) 2010-10-06
US7672221B2 (en) 2010-03-02
US20070002728A1 (en) 2007-01-04
CN1881972A (zh) 2006-12-20
JP4588548B2 (ja) 2010-12-01
CN100574304C (zh) 2009-12-23
JP2006352492A (ja) 2006-12-28

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Legal Events

Date Code Title Description
8381 Inventor (new situation)

Inventor name: SUGIYAMA, TAKATOSHI, 2-CHOME CHIYODA-KU TOKYO , JP

Inventor name: FUJII, HIROMASA, TOKYO, JP

Inventor name: YOSHINO, HITOSHI, 2-CHOME CHIYODA-KU TOKYO 100, JP