DE60233297D1 - Symboltaktsynchronisierung in einem Mehrträgerempfänger - Google Patents

Symboltaktsynchronisierung in einem Mehrträgerempfänger

Info

Publication number
DE60233297D1
DE60233297D1 DE60233297T DE60233297T DE60233297D1 DE 60233297 D1 DE60233297 D1 DE 60233297D1 DE 60233297 T DE60233297 T DE 60233297T DE 60233297 T DE60233297 T DE 60233297T DE 60233297 D1 DE60233297 D1 DE 60233297D1
Authority
DE
Germany
Prior art keywords
clock synchronization
symbol clock
carrier receiver
symbol
estimate
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 - Lifetime
Application number
DE60233297T
Other languages
English (en)
Inventor
Samuel Asangbeng Atungsiri
John Nicholas Wilson
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.)
Sony Europe BV United Kingdom Branch
Original Assignee
Sony United Kingdom 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 Sony United Kingdom Ltd filed Critical Sony United Kingdom Ltd
Application granted granted Critical
Publication of DE60233297D1 publication Critical patent/DE60233297D1/de
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • H04L27/2662—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
    • H04L27/2689—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

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Noise Elimination (AREA)
  • Synchronisation In Digital Transmission Systems (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Radio Transmission System (AREA)
  • Structure Of Receivers (AREA)
  • Transplanting Machines (AREA)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
DE60233297T 2001-06-20 2002-06-10 Symboltaktsynchronisierung in einem Mehrträgerempfänger Expired - Lifetime DE60233297D1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB0115061A GB2376855A (en) 2001-06-20 2001-06-20 Determining symbol synchronisation in an OFDM receiver in response to one of two impulse response estimates

Publications (1)

Publication Number Publication Date
DE60233297D1 true DE60233297D1 (de) 2009-09-24

Family

ID=9916991

Family Applications (1)

Application Number Title Priority Date Filing Date
DE60233297T Expired - Lifetime DE60233297D1 (de) 2001-06-20 2002-06-10 Symboltaktsynchronisierung in einem Mehrträgerempfänger

Country Status (5)

Country Link
US (1) US7177376B2 (de)
EP (1) EP1276291B1 (de)
AT (1) ATE439724T1 (de)
DE (1) DE60233297D1 (de)
GB (1) GB2376855A (de)

Families Citing this family (70)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3649326B2 (ja) * 2001-11-13 2005-05-18 日本電気株式会社 Ｏｆｄｍ方式のガードインターバル長制御方法及びｏｆｄｍ送受信装置
US7020226B1 (en) * 2002-04-04 2006-03-28 Nortel Networks Limited I/Q distortion compensation for the reception of OFDM signals
GB2388499A (en) 2002-05-09 2003-11-12 Sony Uk Ltd A multi-carrier receiver which can detect, estimate and cancel impulse burst noise signals
US7369485B2 (en) * 2002-08-19 2008-05-06 Conexant, Inc. Wireless receiver for sorting packets
US7215934B2 (en) 2002-08-28 2007-05-08 Broadcom Corporation Iterative multi-stage detection technique for a diversity receiver having multiple antenna elements
GB2395094A (en) * 2002-10-28 2004-05-12 Sony Uk Ltd Determining a symbol synch time in an OFDM receiver
US20040223449A1 (en) * 2003-05-08 2004-11-11 Yih-Ming Tsuie Mode detection for OFDM signals
US7577087B2 (en) * 2003-06-30 2009-08-18 Nokia Corporation Faster fine timing operation in multi-carrier system
KR100606105B1 (ko) * 2003-07-04 2006-07-28 삼성전자주식회사 다중 접속 방식을 사용하는 이동 통신 시스템의 셀 탐색장치 및 방법
US8149961B1 (en) * 2003-08-04 2012-04-03 Regents Of The University Of Minnesota Ranging in multi-band communication systems
JP4356392B2 (ja) * 2003-08-07 2009-11-04 パナソニック株式会社 通信装置
US20050047491A1 (en) * 2003-08-28 2005-03-03 Haitao Zhang Method and apparatus for improving channel estimate based on short synchronization code
US7869488B2 (en) * 2003-08-28 2011-01-11 Qualcomm Incorporated Method and apparatus for removing code aliases when using short synchronization codes
DE10342040A1 (de) * 2003-09-11 2005-04-07 Rohde & Schwarz Gmbh & Co Kg Verfahren zur Überwachung der Zeitsynchronität von Sendern in einem Gleichwellennetz
CN100591059C (zh) * 2003-10-03 2010-02-17 诺基亚公司 接收多载波传输的方法、系统和接收机
EP1531591A1 (de) * 2003-11-11 2005-05-18 STMicroelectronics Belgium N.V. Abtastwerteauswahl für Zeitbereich-Interpolation
DE602004028790D1 (de) * 2003-11-11 2010-10-07 Ntt Docomo Inc Signalempfangsgerät und Empfangszeiterkennungsverfahren
FR2868640B1 (fr) * 2004-03-31 2006-06-09 St Microelectronics Sa Demodulateur cofdm a positionnement optimal de fenetre d'analyse fft
US7492828B2 (en) * 2004-06-18 2009-02-17 Qualcomm Incorporated Time synchronization using spectral estimation in a communication system
US7585326B2 (en) 2004-08-06 2009-09-08 Spinalmotion, Inc. Methods and apparatus for intervertebral disc prosthesis insertion
US20060045192A1 (en) * 2004-08-25 2006-03-02 Hiroshi Hayashi Method and apparatus for pilot channel transmission and reception within a multi-carrier communication system
EP1641206A3 (de) 2004-09-08 2007-01-03 Tata Consultancy Services Limited Sub-träger einer niedrigeren Modulationsordnung zur semi-blinden Kanalschätzung in einem OFDM System
GB0419946D0 (en) * 2004-09-08 2004-10-13 British Telecomm High data rate demodulation system
GB0419947D0 (en) * 2004-09-08 2004-10-13 British Telecomm High data rate demodulation system
DE102004047600A1 (de) * 2004-09-30 2006-04-13 Robert Bosch Gmbh Verfahren zum Synchronisieren eines Abtasttaktes sowie Synchronisationseinheit für ein Mehrträgerempfangssystem
JP4167646B2 (ja) * 2004-11-30 2008-10-15 株式会社東芝 Ｏｆｄｍ復調装置
JP4982186B2 (ja) * 2004-12-21 2012-07-25 パナソニック株式会社 Ｏｆｄｍ受信装置
US7778336B1 (en) * 2005-02-09 2010-08-17 Marvell International Ltd. Timing and frequency synchronization of OFDM signals for changing channel conditions
US8165167B2 (en) * 2005-03-10 2012-04-24 Qualcomm Incorporated Time tracking for a communication system
US8675631B2 (en) * 2005-03-10 2014-03-18 Qualcomm Incorporated Method and system for achieving faster device operation by logical separation of control information
US20100157833A1 (en) * 2005-03-10 2010-06-24 Qualcomm Incorporated Methods and systems for improved timing acquisition for varying channel conditions
US8315191B2 (en) * 2005-09-20 2012-11-20 Qualcomm Incorporated Timing acquisition and mode and guard detection for an OFDM transmission
US7623607B2 (en) * 2005-10-31 2009-11-24 Qualcomm Incorporated Methods and apparatus for determining timing in a wireless communication system
US8948329B2 (en) * 2005-12-15 2015-02-03 Qualcomm Incorporated Apparatus and methods for timing recovery in a wireless transceiver
US8144818B2 (en) * 2005-12-15 2012-03-27 Qualcomm Incorporated Apparatus and methods for determining timing in a communication system
KR101223783B1 (ko) * 2006-03-06 2013-01-17 삼성전자주식회사 무선 통신 시스템에서 심벌 타이밍 오프셋 추정 장치 및방법
JP4664234B2 (ja) * 2006-05-24 2011-04-06 富士通セミコンダクター株式会社 Ｏｆｄｍ受信機
US7580468B2 (en) * 2006-07-28 2009-08-25 Samsung Electronics Co., Ltd. Synchronization circuits, orthogonal frequency division multiplexing (OFDM) receivers, and related methods and computer program products
US7684504B2 (en) * 2006-10-31 2010-03-23 Freescale Semiconductor, Inc. System and method for reducing edge effect
US8014457B2 (en) * 2006-10-31 2011-09-06 Freescale Semiconductor, Inc. Method of providing a data signal for channel estimation and circuit thereof
KR100884556B1 (ko) * 2006-11-10 2009-02-19 한국전자통신연구원 단일 반송파 주파수 분할 다중 접속 시스템에서 개별 사용자 단말의 보호구간 확장을 위한 송신장치 및 방법
WO2008056901A1 (en) * 2006-11-10 2008-05-15 Electronics And Telecommunications Research Institute Transmitter for extending guard interval for individual user equipment in ofdma systems
JP4312227B2 (ja) * 2006-11-21 2009-08-12 富士通株式会社 エコー処理方法及び装置
US9391813B2 (en) * 2007-02-16 2016-07-12 Maxlinear, Inc. Long echo detection and channel estimation for OFDM systems
US20080232482A1 (en) * 2007-03-19 2008-09-25 Legend Silicon Corp. Method and apparatus for constructing receiver diversity for ofdm signals
US8416844B2 (en) 2007-03-27 2013-04-09 Panasonic Corporation OFDM receiving apparatus, OFDM receiving method, OFDM receiving circuit, integrated circuit, and program
JP5108407B2 (ja) * 2007-07-25 2012-12-26 富士通セミコンダクター株式会社 シンボルタイミングリカバリ回路
JP5098553B2 (ja) * 2007-10-10 2012-12-12 富士通セミコンダクター株式会社 Ｏｆｄｍ受信装置およびｏｆｄｍ受信方法
JP2009111749A (ja) * 2007-10-30 2009-05-21 Sony Corp 受信装置、受信方法、およびプログラム
JP4412387B2 (ja) * 2007-10-30 2010-02-10 ソニー株式会社 受信装置、受信方法、およびプログラム
TWI361588B (en) * 2007-12-11 2012-04-01 Ind Tech Res Inst Method and device for detecting a synchronization signal in a communication system
US8750091B2 (en) * 2008-03-31 2014-06-10 Qualcomm Incorporated Apparatus and methods for update of symbol information
CN101252764B (zh) * 2008-04-03 2011-01-19 威盛电子股份有限公司 无线终端速度估计的方法及装置
US8073064B2 (en) * 2008-04-18 2011-12-06 Newport Media, Inc. Robust FFT trigger point tracking for echo channels in OFDM based communication systems
JP2009290725A (ja) * 2008-05-30 2009-12-10 Fujitsu Ltd 受信装置および受信方法
CN102084313B (zh) * 2008-07-07 2014-10-15 惠普开发有限公司 用于数据安全的系统和方法
US8174958B2 (en) 2008-08-01 2012-05-08 Broadcom Corporation Method and system for a reference signal (RS) timing loop for OFDM symbol synchronization and tracking
JP4655241B2 (ja) * 2008-09-30 2011-03-23 ソニー株式会社 受信装置、受信方法、およびプログラム
US8396144B2 (en) * 2008-12-31 2013-03-12 Intel Corporation Method and system for OFDM symbol timing recovery
CN101771650B (zh) * 2009-01-07 2013-08-21 北京泰美世纪科技有限公司 一种ofdm系统的信道估计装置和方法
JP2012528520A (ja) * 2009-05-29 2012-11-12 トムソン ライセンシング 高速のサイクルスリップの検出及び訂正
GB2470768A (en) * 2009-06-03 2010-12-08 Sony Corp Receiver for OFDM symbols in a MISO system with Alamouti-type encoding
US8280330B2 (en) * 2009-12-30 2012-10-02 Quintic Holdings Crystal-less clock generation for radio frequency receivers
KR20130006935A (ko) * 2011-06-27 2013-01-18 삼성전자주식회사 수신기 및 이의 동작 방법
WO2013050351A1 (en) * 2011-10-04 2013-04-11 St-Ericsson Sa Processing of channel coefficients of a network
US8665973B2 (en) * 2012-01-31 2014-03-04 Exelis Inc. Removal of a band-limited distributed pilot from an OFDM signal
US9160599B2 (en) * 2013-08-12 2015-10-13 Samsung Electronics Co., Ltd Method and apparatus for channel smoothing and estimation in OFDM system
US10128917B2 (en) * 2014-09-16 2018-11-13 Qualcomm Incorporated Systems and methods for tone plans for wireless communication networks
GB2525459B (en) * 2014-10-22 2017-01-11 Imagination Tech Ltd Symbol boundary detection
US10834458B2 (en) 2019-03-29 2020-11-10 International Business Machines Corporation Automated video detection and correction

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FI108975B (fi) * 1993-03-09 2002-04-30 Nokia Corp Opetusjakso digitaalisessa solukkopuhelinjärjestelmässä
FR2743967B1 (fr) * 1996-01-18 1998-03-27 France Telecom Procede et dispositif de synchronisation temporelle d'un recepteur d'un signal multiporteuse
US6618452B1 (en) * 1998-06-08 2003-09-09 Telefonaktiebolaget Lm Ericsson (Publ) Burst carrier frequency synchronization and iterative frequency-domain frame synchronization for OFDM
US6614864B1 (en) * 1999-10-12 2003-09-02 Itran Communications Ltd. Apparatus for and method of adaptive synchronization in a spread spectrum communications receiver
GB2369016B (en) 2000-11-09 2004-06-09 Sony Uk Ltd Receiver
GB2369015A (en) 2000-11-09 2002-05-15 Sony Uk Ltd Receiver that uses guard signals to estimate synchronisation position
US7106709B2 (en) * 2000-11-29 2006-09-12 Telefonaktiebologet Lm Ericsson (Publ) Timing drift compensation in wireless packet-based systems

Also Published As

Publication number Publication date
US20030016773A1 (en) 2003-01-23
US7177376B2 (en) 2007-02-13
GB0115061D0 (en) 2001-08-15
EP1276291A3 (de) 2006-05-31
GB2376855A (en) 2002-12-24
ATE439724T1 (de) 2009-08-15
EP1276291B1 (de) 2009-08-12
EP1276291A2 (de) 2003-01-15

Similar Documents

Publication Publication Date Title
DE60233297D1 (de) Symboltaktsynchronisierung in einem Mehrträgerempfänger
ATE387769T1 (de) Zyklische verzögerungsdiversität zur verringerung der intersymbolinterferenz in ofdm-systemen
ATE450962T1 (de) Positionierung von pilotsignalen für die multicast-übertragungen in ofdm
BRPI0408757A (pt) método e sistema para sincronização em um receptor de chaveamento de deslocamento de freqüência
RU2011150479A (ru) Способ и устройство для обработки первичных и вторичных сигналов синхронизации для беспроводной связи
ATE404010T1 (de) Symboltaktsynchronisierung in mehrträgerempfängern
FR2814885B1 (fr) Methode de synchronisation de stations de base
WO2008077950A3 (en) Initialization of and modem for an ofdm data transmission
ATE357802T1 (de) Datenzuweisung mit änderbaren signal- rauschabstand
GB2432497B (en) Multicarrier receivers and methods for detecting cyclic prefixes having unknown lengths
BRPI0513697A (pt) transmissão piloto e estimação de canal para múltiplos transmissores
DE60029687D1 (de) Symboltaktsynchronisierung in Mehrträgerempfängern
WO2007100982A3 (en) Synchronization for ofdm signals
WO2008150226A3 (en) Interference suppression in a multicarrier receiver
ATE375667T1 (de) Schnellerer fein-timing-betrieb in einem mehrträgersystem
TW200708020A (en) Collection window positioning using time tracking information
DE602007012658D1 (de) Em erweiterungsteil
WO2006099088A3 (en) Symbol timing corrections in a multi carrier system by using the channel estimation
EP1416693A3 (de) Symboltaktrückgewinnung in einem Mehrträgerempfänger
TW200515726A (en) Apparatus and method for synchronization of OFDM systems
TW200707994A (en) Orthogonal frequency division multiplexing system with PN sequence
WO2019154400A8 (en) Configuration of non-orthogonal dmrs for uplink transmission
ATE476816T1 (de) Trägersynchronisation in ofdm
DE60311067D1 (de) OFDM-Symbolsynchronisierung
TW200507506A (en) Method and system for OFDM symbol timing synchronization

Legal Events

Date Code Title Description
8364 No opposition during term of opposition