EP1782594A1 - Vorrichtung und verfahren zur verringerung eines phasendriftens - Google Patents

Vorrichtung und verfahren zur verringerung eines phasendriftens

Info

Publication number
EP1782594A1
EP1782594A1 EP04764355A EP04764355A EP1782594A1 EP 1782594 A1 EP1782594 A1 EP 1782594A1 EP 04764355 A EP04764355 A EP 04764355A EP 04764355 A EP04764355 A EP 04764355A EP 1782594 A1 EP1782594 A1 EP 1782594A1
Authority
EP
European Patent Office
Prior art keywords
signal
phase
phase drift
time
domain
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.)
Withdrawn
Application number
EP04764355A
Other languages
English (en)
French (fr)
Inventor
Günther Auer
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 EP1782594A1 publication Critical patent/EP1782594A1/de
Withdrawn legal-status Critical Current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
    • 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
    • H04L27/2676—Blind, i.e. without using known symbols
    • H04L27/2679—Decision-aided
    • 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
    • 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
    • H04L27/2656—Frame synchronisation, e.g. packet synchronisation, time division duplex [TDD] switching point detection or subframe synchronisation
EP04764355A 2004-08-20 2004-08-20 Vorrichtung und verfahren zur verringerung eines phasendriftens Withdrawn EP1782594A1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/EP2004/009373 WO2006018035A1 (en) 2004-08-20 2004-08-20 Apparatus and method for reducing a phase drift

Publications (1)

Publication Number Publication Date
EP1782594A1 true EP1782594A1 (de) 2007-05-09

Family

ID=34958557

Family Applications (1)

Application Number Title Priority Date Filing Date
EP04764355A Withdrawn EP1782594A1 (de) 2004-08-20 2004-08-20 Vorrichtung und verfahren zur verringerung eines phasendriftens

Country Status (3)

Country Link
EP (1) EP1782594A1 (de)
JP (1) JP2008511196A (de)
WO (1) WO2006018035A1 (de)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006352746A (ja) * 2005-06-20 2006-12-28 Fujitsu Ltd 直交周波数分割多重伝送用受信機
US8654911B2 (en) 2008-08-20 2014-02-18 Qualcomm Incorporated Uplink SDMA pilot estimation
US20100182899A1 (en) * 2009-01-17 2010-07-22 Qualcomm Incorporated OFDM Time Basis Matching With Pre-FFT Cyclic Shift
US9031122B2 (en) * 2010-01-29 2015-05-12 Qualcomm Incorporated Reducing phase errors on a communication device
CN102158436B (zh) * 2010-02-11 2014-01-08 富士通株式会社 信道频域相关性计算方法及装置、信道估计方法及装置
CN102387110B (zh) * 2010-09-06 2014-11-05 日电（中国）有限公司 用于生成导频序列的设备和方法
US20120250533A1 (en) * 2011-03-29 2012-10-04 Tom Harel Symmetrization of channel impulse response
US8971429B2 (en) * 2012-09-21 2015-03-03 Qualcomm Incorporated Cyclic shift delay detection using autocorrelations
US8971428B2 (en) * 2012-09-21 2015-03-03 Qualcomm Incorporated Cyclic shift delay detection using a channel impulse response
CN109120347B (zh) * 2018-09-19 2021-02-09 南京信息工程大学 一种时频动态变化的多频多概率光载毫米波产生方法

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FI961164A (fi) * 1996-03-13 1997-09-14 Nokia Technology Gmbh Menetelmä kanavavirheiden korjaamiseksi digitaalisessa tietoliikennejärjestelmässä
JP4339959B2 (ja) * 1998-05-26 2009-10-07 パナソニック株式会社 Ｏｆｄｍ伝送のための変調装置、復調装置および伝送システム
US6618452B1 (en) * 1998-06-08 2003-09-09 Telefonaktiebolaget Lm Ericsson (Publ) Burst carrier frequency synchronization and iterative frequency-domain frame synchronization for OFDM
FR2788907B1 (fr) * 1999-01-27 2001-04-13 St Microelectronics Sa Generation d'intervalle de garde dans une transmission en modulation dmt
JP2000278237A (ja) * 1999-03-25 2000-10-06 Toshiba Corp Ｏｆｄｍ用中継装置
JP2000278241A (ja) * 1999-03-25 2000-10-06 Toshiba Corp Ｏｆｄｍ用中継装置
US6771591B1 (en) * 2000-07-31 2004-08-03 Thomson Licensing S.A. Method and system for processing orthogonal frequency division multiplexed signals
JP3598371B2 (ja) * 2001-07-10 2004-12-08 独立行政法人情報通信研究機構 直交周波数分割多重信号の信号処理方法
EP1283614A1 (de) * 2001-08-10 2003-02-12 TELEFONAKTIEBOLAGET L M ERICSSON (publ) Kanalschätzung in einem Mehrträger-Übertragungssystem mit Sende-Diversity
US7272175B2 (en) * 2001-08-16 2007-09-18 Dsp Group Inc. Digital phase locked loop
US7346131B2 (en) * 2002-07-10 2008-03-18 Zoran Corporation System and method for pre-FFT OFDM fine synchronization
US7039131B2 (en) * 2002-08-02 2006-05-02 Agere Systems Inc. Carrier frequency offset estimation in a wireless communication system

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO2006018035A1 *

Also Published As

Publication number Publication date
JP2008511196A (ja) 2008-04-10
WO2006018035A1 (en) 2006-02-23

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