DE69730283D1 - Verfahren und einrichtung zur gemeinsamen schätzung von frequenzverschiebungen und synchronisierung in einem mehrträgermodulationssystem - Google Patents

Verfahren und einrichtung zur gemeinsamen schätzung von frequenzverschiebungen und synchronisierung in einem mehrträgermodulationssystem

Info

Publication number
DE69730283D1
DE69730283D1 DE69730283T DE69730283T DE69730283D1 DE 69730283 D1 DE69730283 D1 DE 69730283D1 DE 69730283 T DE69730283 T DE 69730283T DE 69730283 T DE69730283 T DE 69730283T DE 69730283 D1 DE69730283 D1 DE 69730283D1
Authority
DE
Germany
Prior art keywords
synchronization
modulation system
carrier modulation
frequency shifts
total estimation
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
DE69730283T
Other languages
English (en)
Other versions
DE69730283T2 (de
Inventor
Monisha Ghosh
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.)
Koninklijke Philips NV
Original Assignee
Koninklijke Philips Electronics NV
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 Koninklijke Philips Electronics NV filed Critical Koninklijke Philips Electronics NV
Application granted granted Critical
Publication of DE69730283D1 publication Critical patent/DE69730283D1/de
Publication of DE69730283T2 publication Critical patent/DE69730283T2/de
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00Arrangements affording multiple use of the transmission path
    • H04L5/02Channels characterised by the type of signal
    • H04L5/06Channels characterised by the type of signal the signals being represented by different frequencies
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00Modulated-carrier systems
    • H04L27/26Systems using multi-frequency codes
    • H04L27/2601Multicarrier modulation systems
    • H04L27/2647Arrangements specific to the receiver only
    • H04L27/2655Synchronisation arrangements
    • H04L27/2662Symbol synchronisation
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00Modulated-carrier systems
    • H04L27/26Systems using multi-frequency codes
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00Modulated-carrier systems
    • H04L27/26Systems using multi-frequency codes
    • H04L27/2601Multicarrier modulation systems
    • H04L27/2602Signal structure
    • H04L27/261Details of reference signals
    • H04L27/2613Structure of the reference signals
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00Modulated-carrier systems
    • H04L27/26Systems using multi-frequency codes
    • H04L27/2601Multicarrier modulation systems
    • H04L27/2647Arrangements specific to the receiver only
    • H04L27/2655Synchronisation arrangements
    • H04L27/2657Carrier synchronisation
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00Modulated-carrier systems
    • H04L27/26Systems using multi-frequency codes
    • H04L27/2601Multicarrier modulation systems
    • H04L27/2647Arrangements specific to the receiver only
    • H04L27/2655Synchronisation arrangements
    • H04L27/2668Details of algorithms
    • H04L27/2673Details of algorithms characterised by synchronisation parameters
    • H04L27/2675Pilot or known symbols

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Synchronisation In Digital Transmission Systems (AREA)
DE69730283T 1996-02-08 1997-01-22 Verfahren und einrichtung zur gemeinsamen schätzung von frequenzverschiebungen und synchronisierung in einem mehrträgermodulationssystem Expired - Fee Related DE69730283T2 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US605318 1996-02-08
US08/605,318 US5802117A (en) 1996-02-08 1996-02-08 Method and apparatus for joint frequency offset and timing estimation of a multicarrier modulation system
PCT/IB1997/000041 WO1997029568A1 (en) 1996-02-08 1997-01-22 Method and apparatus for joint frequency offset and timing estimation of a multicarrier modulation system

Publications (2)

Publication Number Publication Date
DE69730283D1 true DE69730283D1 (de) 2004-09-23
DE69730283T2 DE69730283T2 (de) 2005-08-25

Family

ID=24423162

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69730283T Expired - Fee Related DE69730283T2 (de) 1996-02-08 1997-01-22 Verfahren und einrichtung zur gemeinsamen schätzung von frequenzverschiebungen und synchronisierung in einem mehrträgermodulationssystem

Country Status (6)

Country Link
US (1) US5802117A (de)
EP (1) EP0827655B1 (de)
JP (1) JPH11503895A (de)
KR (1) KR19980703715A (de)
DE (1) DE69730283T2 (de)
WO (1) WO1997029568A1 (de)

Families Citing this family (79)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6334219B1 (en) 1994-09-26 2001-12-25 Adc Telecommunications Inc. Channel selection for a hybrid fiber coax network
US7280564B1 (en) 1995-02-06 2007-10-09 Adc Telecommunications, Inc. Synchronization techniques in multipoint-to-point communication using orthgonal frequency division multiplexing
USRE42236E1 (en) 1995-02-06 2011-03-22 Adc Telecommunications, Inc. Multiuse subcarriers in multipoint-to-point communication using orthogonal frequency division multiplexing
CA2183140C (en) * 1996-08-12 2001-11-20 Grant Mcgibney Ofdm timing and frequency recovery system
FI102231B (fi) * 1996-09-16 1998-10-30 Nokia Technology Gmbh Symbolitahdistuksen ja näytteenottotaajuuden säätömenetelmä OFDM-modul oituja lähetyksiä vastaanottavassa laitteessa sekä menetelmän toteutta va laite
IL120210A (en) * 1997-02-13 1999-12-31 Dspc Tech Ltd Synchronization system and method for digital communication systems
TW465234B (en) * 1997-02-18 2001-11-21 Discovision Ass Single chip VLSI implementation of a digital receiver employing orthogonal frequency division multiplexing
US6633550B1 (en) 1997-02-20 2003-10-14 Telefonaktiebolaget Lm Ericsson (Publ) Radio transceiver on a chip
SE9703630L (sv) * 1997-03-03 1998-09-04 Telia Ab Förbättringar av, eller med avseende på, synkronisering
JPH10257013A (ja) * 1997-03-14 1998-09-25 Toshiba Corp 受信装置
JPH10313286A (ja) * 1997-05-13 1998-11-24 Sony Corp 受信装置
US6134286A (en) * 1997-10-14 2000-10-17 Ericsson Inc. Synchronization techniques and systems for radiocommunication
US6493397B1 (en) * 1997-10-20 2002-12-10 Matsushita Electric Industrial Co. Ltd. Radio communication device and radio communication method
US6359878B1 (en) * 1998-07-20 2002-03-19 Wirless Facilities, Inc. Non-data-aided maximum likelihood based feedforward timing synchronization method
US6654432B1 (en) 1998-06-08 2003-11-25 Wireless Facilities, Inc. Joint maximum likelihood frame and timing estimation for a digital receiver
US6061574A (en) * 1997-10-28 2000-05-09 Motorola, Inc. Method and apparatus in a wireless communication system for reducing errors caused by intersymbol interference during a simulcast transmission
KR100263372B1 (ko) * 1997-11-29 2000-08-01 전주범 직교분할대역 시스템의 간략 주파수 획득 방법 및 그 장치
JP3981898B2 (ja) * 1998-02-20 2007-09-26 ソニー株式会社 信号受信装置および方法、並びに記録媒体
US6950444B1 (en) * 1999-08-24 2005-09-27 Paradyne Corporation System and method for a robust preamble and transmission delimiting in a switched-carrier transceiver
DE19814530A1 (de) * 1998-04-01 1999-10-07 Bosch Gmbh Robert Verfahren zur digitalen Übertragung von Daten in einem drahtlosen Kommunikationsnetz und Empfangsgerät zum Empfang von nach dem Verfahren übertragenen Daten
SE9801748L (sv) * 1998-05-18 1999-11-19 Telia Ab Förbättringar i eller som hänför sig till telekommunikationsöverföringssystem
KR100293615B1 (ko) * 1998-09-07 2002-05-01 김춘호 오에프디엠 시스템에서 반복되는 신호로 구성된 기준심볼을 이용한 반송파 주파수 옵셋 추정방법
US6442221B1 (en) * 1998-09-22 2002-08-27 Zenith Electronics Corporation Ghost eliminating equalizer
US6310926B1 (en) * 1998-09-25 2001-10-30 Telefonaktiebolaget Lm Ericsson (Publ) Adjustment of the sampling frequency in a multicarrier receiver
GB9823812D0 (en) * 1998-10-30 1998-12-23 Mitsubishi Electric Inf Tech Multicarrier communications systems
US6430235B1 (en) 1998-11-05 2002-08-06 Wireless Facilities, Inc. Non-data-aided feedforward timing synchronization method
DE19854167C2 (de) * 1998-11-24 2000-09-28 Siemens Ag Frequenzstabilisierte Sende-/Empfangsschaltung
US6111919A (en) * 1999-01-20 2000-08-29 Intellon Corporation Synchronization of OFDM signals
DE69942222D1 (de) 1999-02-11 2010-05-20 Motorola Inc Schätzung von Träger- und Abtastungsfrequenzverschiebungen in Mehrträgerempfängern
EP1083721A1 (de) * 1999-09-09 2001-03-14 Interuniversitair Micro-Elektronica Centrum Vzw Mehrträgersender/Empfänger
EP1030489A1 (de) * 1999-02-17 2000-08-23 Interuniversitair Micro-Elektronica Centrum Vzw Emetteur/Récepteur multiporteur
US6760300B1 (en) 1999-02-17 2004-07-06 Imec High speed wireless OFDM transceiver modem
DE60028276T2 (de) * 1999-03-26 2007-05-03 Nec Corp. Verringerung von Verzögerung in Mehrträgerempfängern
US6549587B1 (en) * 1999-09-20 2003-04-15 Broadcom Corporation Voice and data exchange over a packet based network with timing recovery
US6074086A (en) * 1999-04-26 2000-06-13 Intellon Corporation Synchronization of OFDM signals with improved windowing
US6269132B1 (en) 1999-04-26 2001-07-31 Intellon Corporation Windowing function for maintaining orthogonality of channels in the reception of OFDM symbols
US6546056B1 (en) * 1999-05-28 2003-04-08 3Com Corporation Timing recovery in a multi-tone modem
US6693983B1 (en) * 1999-10-05 2004-02-17 Her Majesty The Queen In Right Of Canada, As Represented By The Minister Of Industry Through The Communication Research Centre Method and system for detection of short digital radio messages
US6477210B2 (en) * 2000-02-07 2002-11-05 At&T Corp. System for near optimal joint channel estimation and data detection for COFDM systems
CN1193563C (zh) * 2000-02-22 2005-03-16 皇家菲利浦电子有限公司 多载波接收机和含此类接收机的发射系统
US6956814B1 (en) 2000-02-29 2005-10-18 Worldspace Corporation Method and apparatus for mobile platform reception and synchronization in direct digital satellite broadcast system
EP1269706B1 (de) * 2000-04-04 2006-11-02 Broadcom Corporation Verfahren zur kompensation von phasenfehlern in mehrträgersignalen
JP2001339328A (ja) * 2000-05-25 2001-12-07 Communication Research Laboratory 受信装置、受信方法、ならびに、情報記録媒体
DE10026538A1 (de) * 2000-05-27 2001-11-29 Deutsche Telekom Ag Verfahren und Diversity-Empfangsvorrichtung zum Empfangen eines Mehrträger-Signals
DE10039902B4 (de) * 2000-08-16 2011-04-28 Rohde & Schwarz Gmbh & Co. Kg Verfahren zur Frequenz- und Zeit-Synchronisation eines Empfängers
US20020065047A1 (en) * 2000-11-30 2002-05-30 Moose Paul H. Synchronization, channel estimation and pilot tone tracking system
US7012881B2 (en) * 2000-12-29 2006-03-14 Samsung Electronic Co., Ltd. Timing and frequency offset estimation scheme for OFDM systems by using an analytic tone
CN1224228C (zh) * 2001-02-22 2005-10-19 皇家菲利浦电子有限公司 具备降低复杂度的泄漏矩阵相乘的多载波传输系统
CN1228951C (zh) * 2001-02-22 2005-11-23 皇家菲利浦电子有限公司 具有简化信道响应估计的多载波传输系统
CN1659841A (zh) * 2001-02-22 2005-08-24 皇家菲利浦电子有限公司 简化复杂度的载波干扰抵消
US7035358B1 (en) * 2001-02-23 2006-04-25 Arraycomm, Inc. Method and apparatus for receiving a wideband signal in the presence of multipath channel imperfections and frequency offset
US8619922B1 (en) 2002-02-04 2013-12-31 Marvell International Ltd. Method and apparatus for acquisition and tracking of orthogonal frequency division multiplexing symbol timing, carrier frequency offset and phase noise
US7218691B1 (en) 2001-03-05 2007-05-15 Marvell International Ltd. Method and apparatus for estimation of orthogonal frequency division multiplexing symbol timing and carrier frequency offset
EP1267536A1 (de) * 2001-06-13 2002-12-18 Conexant Systems, Inc. Mehrträgerempfänger mit Erfassung des Übertragungsmodus und der Länge des Schutzintervalles
US7962162B2 (en) * 2001-08-07 2011-06-14 At&T Intellectual Property Ii, L.P. Simulcasting OFDM system having mobile station location identification
KR100438519B1 (ko) * 2001-12-28 2004-07-03 한국전자통신연구원 순방향 구조로 심볼 타이밍을 추정하는 수신 시스템 및 그타이밍 추정방법
JP2003319005A (ja) * 2002-02-20 2003-11-07 Mitsubishi Electric Corp シンボルタイミング補正回路、受信機、シンボルタイミング補正方法、及び復調処理方法
US7277504B2 (en) * 2002-06-27 2007-10-02 Telefonktiebolaget Lm Ericsson (Publ) Method and system for concurrent estimation of frequency offset and modulation index
US7245672B2 (en) * 2002-06-27 2007-07-17 Telefonaktiebolaget Lm Ericsson (Publ) Method and apparatus for phase-domain semi-coherent demodulation
KR100489409B1 (ko) * 2002-10-26 2005-05-16 텔레시스 인코포레이티드 무선 통신시스템의 송수신기 성능을 개선하기 위한 방법
KR100488802B1 (ko) * 2002-12-09 2005-05-12 한국전자통신연구원 직교 주파수 분할 다중화 무선 통신 시스템에서의 반송파주파수 오차와 샘플링 주파수 오차 추적 방법 및 그 장치
US7385617B2 (en) * 2003-05-07 2008-06-10 Illinois Institute Of Technology Methods for multi-user broadband wireless channel estimation
US7145970B2 (en) * 2003-07-07 2006-12-05 Beno Corporation Frequency offset detector for AFC under rayleigh fading
KR100555508B1 (ko) * 2003-07-22 2006-03-03 삼성전자주식회사 직교 주파수 분할 다중 수신 시스템에서의 임펄스 잡음억제 회로 및 방법
US8433005B2 (en) 2004-01-28 2013-04-30 Qualcomm Incorporated Frame synchronization and initial symbol timing acquisition system and method
EP1712054A1 (de) * 2004-01-28 2006-10-18 Qualcomm, Incorporated Timing-schätzung in einem ofdm-empfänger
US8724447B2 (en) 2004-01-28 2014-05-13 Qualcomm Incorporated Timing estimation in an OFDM receiver
KR100770924B1 (ko) * 2005-02-04 2007-10-26 삼성전자주식회사 무선 통신 시스템에서 주파수 오차 보상 장치 및 방법
US7660339B2 (en) * 2005-12-09 2010-02-09 Electronics And Telecommunications Research Institute Apparatus and method for estimating and correcting frequency offset in MB-OFDM UWB system using time frequency hopping
KR100717847B1 (ko) 2005-12-09 2007-05-14 한국전자통신연구원 시간 주파수 호핑 방식을 사용하는 다중대역 ofdm초광대역 시스템에서의 주파수 옵셋 추정 및 보상 방법과,그 장치
US20070177492A1 (en) * 2006-01-27 2007-08-02 Qualcomm Incorporated Methods and tools for expanding coverage of an ofdm broadcast transmitter via transmit timing advance
US8379739B2 (en) * 2008-03-10 2013-02-19 St Ericsson Sa Method and system for impact mitigation of sudden carrier frequency shifts in OFDM receivers
CN101562595B (zh) * 2009-05-25 2012-10-24 北京天碁科技有限公司 频率偏差和符号定时偏差联合估计方法和装置
US8576743B2 (en) * 2010-12-28 2013-11-05 Qualcomm Incorporated Apparatus and methods for estimating an unknown frequency error of a tone signal
CN107005516B (zh) * 2014-12-23 2021-03-19 瑞典爱立信有限公司 使用空保护间隔的块间干扰抑制
US10334533B2 (en) 2016-11-02 2019-06-25 At&T Intellectual Property I, L.P. Non-orthogonal design for channel state information reference signals for a 5G air interface or other next generation network interfaces
US10237032B2 (en) 2017-01-06 2019-03-19 At&T Intellectual Property I, L.P. Adaptive channel state information reference signal configurations for a 5G wireless communication network or other next generation network
US10320512B2 (en) 2017-01-08 2019-06-11 At&T Intellectual Property I, L.P. Interference cancelation for 5G or other next generation network
CN107888526A (zh) * 2017-12-27 2018-04-06 天津赛特凯特科技发展有限公司 一种机顶盒频道滤波和载波恢复电路

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5029184A (en) * 1990-01-24 1991-07-02 Harris Corporation Low probability of intercept communication system
US5228062A (en) * 1990-04-16 1993-07-13 Telebit Corporation Method and apparatus for correcting for clock and carrier frequency offset, and phase jitter in multicarrier modems
US5225062A (en) * 1991-02-27 1993-07-06 W. R. Grace & Co. -Conn. Electrophoretic gel for separation and recovery of substances and its use
SE9400116L (sv) * 1994-01-18 1995-03-27 Telia Ab Förfarande och arrangemang för synkronisering vid OFDM- modulering
US5608784A (en) * 1994-01-24 1997-03-04 Miller; Joel F. Method of personnel verification using voice recognition
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
JP3421880B2 (ja) * 1994-10-05 2003-06-30 ソニー株式会社 復調装置

Also Published As

Publication number Publication date
DE69730283T2 (de) 2005-08-25
JPH11503895A (ja) 1999-03-30
EP0827655A1 (de) 1998-03-11
WO1997029568A1 (en) 1997-08-14
KR19980703715A (ko) 1998-12-05
US5802117A (en) 1998-09-01
EP0827655B1 (de) 2004-08-18

Similar Documents

Publication Publication Date Title
DE69730283D1 (de) Verfahren und einrichtung zur gemeinsamen schätzung von frequenzverschiebungen und synchronisierung in einem mehrträgermodulationssystem
DE69430387T2 (de) Verfahren und einrichtung zur synchronisierung bei ofdm-modulation
DE69807945D1 (de) Verfahren und einrichtung zur feinen frequenzsynchronisierung in mehrträgerdemodulationssystemen
DE69727253D1 (de) Verfahren und vorrichtung zur sychronisierten durchführung von konfigurationinformation in einem kommunikationssystem
DE69727264D1 (de) Verfahren zur Frequenzkorrektur von Mehrträgersignalen und zugehörige Vorrichtung
ATE463082T1 (de) Verfahren und vorrichtung zur modulation/ demodulation mit begrenzung von nacheinander auftretenden minimalen lauflängen
DE69733770D1 (de) Verfahren und vorrichtung zur gelenksynchronisierung von mehreren empfangskanälen
DE69628692T2 (de) Modulator sowie Verfahren zur Modulation und Demodulation
DE69525702T2 (de) Verfahren und Schaltung zur Behandlung von Mehrträgersignalen
DE69731051D1 (de) Verfahren und System zur Frequenzunterdrückung
DE69738644D1 (de) Verfahren und Anordnung zur Bandbreitenzuteilung
DE69031787D1 (de) Verfahren und System zur Direktmodulations-Phasenumtastung
DE69729347D1 (de) Vorrichtung und Verfahren zur digitalen Demodulation
DE69517955T2 (de) Verfahren und gerät zur nichtinvasiven vorhersage von hämatokrit
DE69833778D1 (de) Verfahren und vorrichtung zur aktualisierung von unterträger-modulation in einem kommunikationsnetzwerk
DE59702349D1 (de) Verfahren zur herstellung von aminen und aminonitrilen
DE69711957D1 (de) Verfahren und Einrichtung zum Empfang von Mehrträgersignalen
DE69526392D1 (de) Verfahren zur digitalen Modulation/Demodulation und Gerät zur Verwendung desselben
DE59702301D1 (de) Verfahren und vorrichtung zur gewinnung von druckstickstoff
DE69737699D1 (de) Gerät und verfahren zur fft-berechnung
DE69925338D1 (de) Verfahren und Einrichtung zur ASK-Modulation
DE59703443D1 (de) Verfahren zur herstellung von aminen und aminonitrilen
DE69719369D1 (de) Verfahren und geräte zur entfernung von überschüssigen monomeren
DE59504441D1 (de) Verfahren zur Amplituden-Demodulation
DE69729329D1 (de) Gerät und verfahren zur phasenschätzung

Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee