DE69733230D1 - Korrektur eines Trägerversatzes in einem Mehrträgermodulationssystem - Google Patents

Korrektur eines Trägerversatzes in einem Mehrträgermodulationssystem

Info

Publication number
DE69733230D1
DE69733230D1 DE69733230T DE69733230T DE69733230D1 DE 69733230 D1 DE69733230 D1 DE 69733230D1 DE 69733230 T DE69733230 T DE 69733230T DE 69733230 T DE69733230 T DE 69733230T DE 69733230 D1 DE69733230 D1 DE 69733230D1
Authority
DE
Germany
Prior art keywords
correction
modulation system
multicarrier modulation
carrier offset
offset
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.)
Expired - Fee Related
Application number
DE69733230T
Other languages
English (en)
Other versions
DE69733230T2 (de
Inventor
Masahiro Tsujishita
Kenichi Taura
Tadatoshi Ohkubo
Yoshiharu Ohsuga
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.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric 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 Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Publication of DE69733230D1 publication Critical patent/DE69733230D1/de
Application granted granted Critical
Publication of DE69733230T2 publication Critical patent/DE69733230T2/de
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • H04L27/2657—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
    • H04L27/2647—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
DE69733230T 1996-08-06 1997-08-05 Korrektur eines Trägerversatzes in einem Mehrträgermodulationssystem Expired - Fee Related DE69733230T2 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP20738296 1996-08-06
JP8207382A JPH1051418A (ja) 1996-08-06 1996-08-06 ディジタル受信装置

Publications (2)

Publication Number Publication Date
DE69733230D1 true DE69733230D1 (de) 2005-06-16
DE69733230T2 DE69733230T2 (de) 2006-01-19

Family

ID=16538813

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69733230T Expired - Fee Related DE69733230T2 (de) 1996-08-06 1997-08-05 Korrektur eines Trägerversatzes in einem Mehrträgermodulationssystem

Country Status (4)

Country Link
US (1) US5946292A (de)
EP (1) EP0823804B1 (de)
JP (1) JPH1051418A (de)
DE (1) DE69733230T2 (de)

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JP3466422B2 (ja) * 1997-05-28 2003-11-10 株式会社ケンウッド 受信装置
FI103235B (fi) 1997-06-26 1999-05-14 Nokia Telecommunications Oy Häiriönpoistomenetelmä OFDM-radiovastaanottimessa
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EP1605654A1 (de) * 1997-09-04 2005-12-14 Sony Deutschland GmbH Übertragungssystem für OFDM-Signale
USRE43829E1 (en) * 1997-09-04 2012-11-27 Sony Deutchland GmbH Transmission system for OFDM-signals with optimized synchronization
US6549592B1 (en) 1998-02-06 2003-04-15 Cisco Technology, Inc Enhanced synchronization burst for OFDM systems
US6876675B1 (en) 1998-02-06 2005-04-05 Cisco Technology, Inc. Synchronization in OFDM systems
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CA2327876C (en) * 1998-04-14 2004-06-01 Fraunhofer-Gesellschaft Zur Forderung Der Angewandten Forschung E.V. Echo phase offset correction in a multi-carrier demodulation system
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JP3899675B2 (ja) * 1998-05-20 2007-03-28 ソニー株式会社 放送信号受信装置
EP0961448B1 (de) * 1998-05-26 2009-01-07 Panasonic Corporation Modulator, Demodulator, und Übertragungssystem für OFDM-Übertragung
KR100442816B1 (ko) * 1998-07-08 2004-09-18 삼성전자주식회사 직교주파수분할다중화(ofdm)수신기 동기화 방법 및 장치
US6891792B1 (en) * 1999-05-14 2005-05-10 At&T Corp. Method for estimating time and frequency offset in an OFDM system
US6163276A (en) * 1999-05-17 2000-12-19 Cellnet Data Systems, Inc. System for remote data collection
US6452986B1 (en) * 1999-05-17 2002-09-17 Cellnet Data Systems, Inc. Detector tolerant of frequency misalignment
US6768714B1 (en) 1999-06-23 2004-07-27 At&T Wireless Services, Inc. Methods and apparatus for use in obtaining frequency synchronization in an OFDM communication system
US6700866B1 (en) 1999-06-23 2004-03-02 At&T Wireless Services, Inc. Methods and apparatus for use in obtaining frequency synchronization in an OFDM communication system
US6862297B1 (en) 1999-12-21 2005-03-01 Cisco Technology, Inc. Wide range frequency offset estimation in OFDM systems
US6704374B1 (en) * 2000-02-16 2004-03-09 Thomson Licensing S.A. Local oscillator frequency correction in an orthogonal frequency division multiplexing system
DE60021524T2 (de) * 2000-04-18 2006-06-01 Sony International (Europe) Gmbh OFDM Diversity-Übertragung
US6930989B1 (en) 2000-06-20 2005-08-16 Cisco Technology, Inc. Wide frequency offset correction using encoded interburst phase differences
US7065146B1 (en) 2002-02-15 2006-06-20 Marvell International Ltd. Method and apparatus for equalization and decoding in a wireless communications system including plural receiver antennae
US20020136282A1 (en) * 2001-03-26 2002-09-26 Quang Nguyen Optimum UMTS modem
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US6959050B2 (en) * 2001-06-15 2005-10-25 Motorola, Inc. Method and apparatus for synchronizing an OFDM signal
GB0115015D0 (en) * 2001-06-20 2001-08-08 Koninkl Philips Electronics Nv Method of, and receiver for, minimising carrier phase rotation due to signal adjustments and enhancements
US7006587B1 (en) 2001-11-20 2006-02-28 Cisco Technolgy, Inc. Preamble aided synchronization
CA2469913A1 (en) * 2001-12-17 2003-06-26 International Business Machines Corporation Method and apparatus for multi-carrier transmission
US7133473B1 (en) 2002-02-15 2006-11-07 Marvell International Ltd. Divisionless baseband equalization in symbol modulated communications
US7567634B1 (en) 2002-02-15 2009-07-28 Marvell International Ltd. Reduced complexity viterbi decoding method and apparatus
FR2840475B1 (fr) * 2002-05-28 2004-08-27 France Telecom Procede de determination de decalage temporel et/ou de puissance d'un signal, circuit et dispositif de reception
SG111094A1 (en) * 2002-12-05 2005-05-30 Oki Techno Ct Singapore Pte Digital receiver
US7277493B2 (en) * 2003-01-28 2007-10-02 Agere Systems Inc. Equalization in orthogonal frequency domain multiplexing
US7203261B2 (en) * 2003-04-07 2007-04-10 Qualcomm Incorporated Phase locked loop for an OFDM system
JP3654646B2 (ja) * 2003-05-12 2005-06-02 三菱電機株式会社 復調装置及び復調方法
US7483368B2 (en) * 2003-09-30 2009-01-27 Hitachi Kokusai Electric Inc. Method and detecting carrier shift amount in digital transmission signal, method of correcting carrier shift amount, and receiver employing these methods
US7251467B2 (en) * 2003-10-14 2007-07-31 Qualcomm Incorporated Telecommunications using a tunable oscillator
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US20060023812A1 (en) * 2004-07-28 2006-02-02 Texas Instruments Incorporated Providing correction for carrier frequency offset in multi-carrier communication systems
US7742444B2 (en) 2005-03-15 2010-06-22 Qualcomm Incorporated Multiple other sector information combining for power control in a wireless communication system
JP2006287672A (ja) * 2005-04-01 2006-10-19 Seiko Epson Corp Ｏｆｄｍ復調装置およびｏｆｄｍ復調方法
US9055552B2 (en) 2005-06-16 2015-06-09 Qualcomm Incorporated Quick paging channel with reduced probability of missed page
US8750908B2 (en) 2005-06-16 2014-06-10 Qualcomm Incorporated Quick paging channel with reduced probability of missed page
US20090207790A1 (en) 2005-10-27 2009-08-20 Qualcomm Incorporated Method and apparatus for settingtuneawaystatus in an open state in wireless communication system
US8331285B2 (en) 2005-10-27 2012-12-11 Qualcomm Incorporated Method and apparatus of establishing access channel in wireless communication systems
WO2007073099A1 (en) * 2005-12-22 2007-06-28 Lg Innotek Co., Ltd Rfid system
US7978773B2 (en) * 2006-12-29 2011-07-12 Agere Systems Inc. Multi-channel receiver with improved AGC
US7809343B2 (en) * 2007-04-25 2010-10-05 Agere Systems Inc. Multi-channel receiver with improved AGC
US7769357B2 (en) * 2007-04-25 2010-08-03 Agere Systems Inc. Multi-channel receiver with improved AGC
US8149902B1 (en) * 2007-09-13 2012-04-03 Maxim Integrated Products, Inc. Methods to relax the second order intercept point of transceivers
US9337964B2 (en) 2012-03-12 2016-05-10 Aviat U.S., Inc. Carrier recovery aided by pilot symbols carrying information
US10305676B2 (en) * 2013-07-24 2019-05-28 Silicon Laboratories Inc. Apparatus for receiver with digital signal arrival detector and associated methods
US10172105B2 (en) 2013-07-24 2019-01-01 Silicon Laboratories Inc. Apparatus for receiver with multi-bit observation interval and associated methods
EP3043491B1 (de) * 2013-10-09 2018-03-28 Nippon Telegraph and Telephone Corporation Optisches übertragungssystem
US10389482B2 (en) 2016-12-06 2019-08-20 Silicon Laboratories Inc. Radio-frequency apparatus with improved power consumption and associated methods

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NL8701290A (nl) * 1987-06-02 1989-01-02 Philips Nv Ontvanger voor een faseverschuivingsgemoduleerd draaggolfsignaal.
FR2693861A1 (fr) * 1992-07-16 1994-01-21 Philips Electronique Lab Récepteur de signaux à répartition multiplexée de fréquences orthogonales muni d'un dispositif de synchronisation de fréquences.
US5444697A (en) * 1993-08-11 1995-08-22 The University Of British Columbia Method and apparatus for frame synchronization in mobile OFDM data communication
JP2989742B2 (ja) * 1994-05-20 1999-12-13 株式会社日立製作所 ディジタル放送システムおよび該ディジタル放送用の送信システムならびに該ディジタル放送用の受信システム
FR2721778B1 (fr) * 1994-06-23 1996-09-06 France Telecom Procédé d'estimation d'une erreur de phase résiduelle sur les échantillons d'un signal numérique démodulé, et procédé de correction correspondant.

Also Published As

Publication number Publication date
EP0823804A3 (de) 2000-05-17
US5946292A (en) 1999-08-31
JPH1051418A (ja) 1998-02-20
EP0823804A2 (de) 1998-02-11
EP0823804B1 (de) 2005-05-11
DE69733230T2 (de) 2006-01-19

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Legal Events

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8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee