ATE404010T1 - Symboltaktsynchronisierung in mehrträgerempfängern - Google Patents

Symboltaktsynchronisierung in mehrträgerempfängern

Info

Publication number
ATE404010T1
ATE404010T1 AT01119747T AT01119747T ATE404010T1 AT E404010 T1 ATE404010 T1 AT E404010T1 AT 01119747 T AT01119747 T AT 01119747T AT 01119747 T AT01119747 T AT 01119747T AT E404010 T1 ATE404010 T1 AT E404010T1
Authority
AT
Austria
Prior art keywords
clock synchronization
symbol clock
multi carrier
carrier receiver
timing
Prior art date
Application number
AT01119747T
Other languages
English (en)
Inventor
Robert Ward
Original Assignee
Symbol Technologies 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 Symbol Technologies Inc filed Critical Symbol Technologies Inc
Application granted granted Critical
Publication of ATE404010T1 publication Critical patent/ATE404010T1/de

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
    • H04L27/2668—Details of algorithms
    • H04L27/2681—Details of algorithms characterised by constraints
    • H04L27/2685—Speed of convergence
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/08—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the receiving station
    • H04B7/0802—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the receiving station using antenna selection
    • H04B7/0805—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the receiving station using antenna selection with single receiver and antenna switching
    • H04B7/0808—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the receiving station using antenna selection with single receiver and antenna switching comparing all antennas before reception
    • H04B7/0811—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the receiving station using antenna selection with single receiver and antenna switching comparing all antennas before reception during preamble or gap period
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Synchronisation In Digital Transmission Systems (AREA)
  • Radio Transmission System (AREA)
AT01119747T 2000-09-29 2001-08-27 Symboltaktsynchronisierung in mehrträgerempfängern ATE404010T1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US09/675,955 US6754170B1 (en) 2000-09-29 2000-09-29 Timing synchronization in OFDM communications receivers

Publications (1)

Publication Number Publication Date
ATE404010T1 true ATE404010T1 (de) 2008-08-15

Family

ID=24712618

Family Applications (1)

Application Number Title Priority Date Filing Date
AT01119747T ATE404010T1 (de) 2000-09-29 2001-08-27 Symboltaktsynchronisierung in mehrträgerempfängern

Country Status (6)

Country Link
US (1) US6754170B1 (de)
EP (1) EP1193933B1 (de)
JP (1) JP2002185428A (de)
AT (1) ATE404010T1 (de)
AU (1) AU781609B2 (de)
DE (1) DE60135193D1 (de)

Families Citing this family (80)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7952511B1 (en) 1999-04-07 2011-05-31 Geer James L Method and apparatus for the detection of objects using electromagnetic wave attenuation patterns
US6985432B1 (en) * 2000-01-28 2006-01-10 Zion Hadad OFDM communication channel
US7106709B2 (en) * 2000-11-29 2006-09-12 Telefonaktiebologet Lm Ericsson (Publ) Timing drift compensation in wireless packet-based systems
US6950475B1 (en) * 2000-12-11 2005-09-27 Cisco Technology, Inc. OFDM receiver clock synchronization system
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
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
US7116906B2 (en) * 2001-03-06 2006-10-03 Incucomm, Inc. Wireless optical system for high bandwidth communications
US7039140B2 (en) * 2001-03-08 2006-05-02 Proxim Wireless Corporation OFDM data demodulators synchronization
US7804772B2 (en) * 2001-06-08 2010-09-28 Broadcom Corporation Receiver having integrated spectral analysis capability
AU2002327417A1 (en) * 2001-08-04 2003-03-03 Enikia Llc Adaptive radiated emission control
US7161987B2 (en) 2001-09-26 2007-01-09 Conexant, Inc. Single-carrier to multi-carrier wireless architecture
ATE287597T1 (de) * 2001-10-16 2005-02-15 Ericsson Telefon Ab L M Synchronisation von mobilen geräten in einem zeitmultiplex duplex (tdd) cdma system
US7039000B2 (en) * 2001-11-16 2006-05-02 Mitsubishi Electric Research Laboratories, Inc. Timing synchronization for OFDM-based wireless networks
US7239648B1 (en) * 2001-11-27 2007-07-03 Marvell International Ltd. Extension mode for wireless lans complying with short interframe space requirement
US20030112883A1 (en) * 2001-12-13 2003-06-19 Ihrie David Wayne Method and apparatus for bi-directional communication in systems broadcasting multi-carrier signals
US7173990B2 (en) * 2001-12-27 2007-02-06 Dsp Group Inc. Joint equalization, soft-demapping and phase error correction in wireless system with receive diversity
US20030215000A1 (en) * 2002-05-20 2003-11-20 Hansen Carl C. Pseudo-random bit mapping for multitone transceivers
US7577122B1 (en) * 2002-06-18 2009-08-18 Richard Douglas Schultz Method for minimizing receive packet processing for a personal computer implementation of a wireless local area network adapter
US7379417B2 (en) * 2003-02-19 2008-05-27 Wipro Limited Orthogonal frequency division multiplexing transmitter system and VLSI implementation thereof
US7324612B2 (en) * 2003-02-21 2008-01-29 Conexant, Inc. Carrier tracking circuit and method including dual numerically controlled oscillators and feedforward phase correction coefficient
US7418040B2 (en) * 2003-05-30 2008-08-26 Motorola, Inc. Method and apparatus for determining a timing offset for processing a multi-carrier signal
KR100981400B1 (ko) * 2003-06-19 2010-09-10 소니 주식회사 멀티 캐리어 전송을 행하는 무선 통신 시스템, 수신 장치 및 수신 방법
JP2007519290A (ja) * 2003-07-11 2007-07-12 コーニンクレッカ フィリップス エレクトロニクス エヌ ヴィ 粗い及び細かい周波数及び時間同期のための方法及び装置
JP4356392B2 (ja) 2003-08-07 2009-11-04 パナソニック株式会社 通信装置
US6917311B2 (en) * 2003-08-11 2005-07-12 Texas Instruments Incorporated Orthogonal preamble encoder, method of encoding orthogonal preambles and multiple-input, multiple-output communication system employing the same
US20050078598A1 (en) * 2003-08-21 2005-04-14 Anuj Batra Enhancement to the multi-band OFDM physical layer
US7480234B1 (en) * 2003-10-31 2009-01-20 Cisco Technology, Inc. Initial timing estimation in a wireless network receiver
US7633850B2 (en) 2003-12-18 2009-12-15 National Institute Of Information And Communications Technology Transmitter, receiver, transmitting method, receiving method, and program
US20060007898A1 (en) * 2003-12-23 2006-01-12 Maltsev Alexander A Method and apparatus to provide data packet
US7593347B2 (en) * 2003-12-29 2009-09-22 Intel Corporation Method and apparatus to exchange channel information
US7433395B2 (en) * 2004-02-04 2008-10-07 2Wire, Inc. Reliable multicarrier communication in the presence of timing phase error
JP2005303691A (ja) * 2004-04-13 2005-10-27 Oki Electric Ind Co Ltd 同期検出装置および同期検出方法
WO2005117314A1 (en) * 2004-05-20 2005-12-08 Conexant Systems, Inc. Cyclic diversity systems and methods
US8077592B2 (en) * 2004-06-22 2011-12-13 Intellectual Ventures I Llc Packet processing systems and methods
WO2006002310A2 (en) * 2004-06-22 2006-01-05 Conexant Systems, Inc. Legacy compatible spatial multiplexing systems and methods
WO2006057677A1 (en) * 2004-07-21 2006-06-01 Conexant Systems, Inc. Packet processing systems and methods
US20060029017A1 (en) * 2004-07-26 2006-02-09 Beceem Communications Inc. Method and system for transmitting training information in a block transmission system
US9246728B2 (en) 2004-07-29 2016-01-26 Qualcomm Incorporated System and method for frequency diversity
MX2007001162A (es) * 2004-07-29 2007-07-11 Qualcomm Inc Sistema y metodo para intercalacion.
US8391410B2 (en) * 2004-07-29 2013-03-05 Qualcomm Incorporated Methods and apparatus for configuring a pilot symbol in a wireless communication system
US20080317142A1 (en) * 2005-07-29 2008-12-25 Qualcomm Incorporated System and method for frequency diversity
US20070081484A1 (en) * 2004-07-29 2007-04-12 Wang Michael M Methods and apparatus for transmitting a frame structure in a wireless communication system
US7298772B1 (en) 2004-09-03 2007-11-20 Redpine Signals, Inc. Packet detection, symbol timing, and coarse frequency estimation in an OFDM communications system
US7596181B2 (en) * 2004-09-18 2009-09-29 Samsung Electronics Co., Ltd. Apparatus and method for frequency synchronization in OFDM system
CA2582957C (en) 2004-10-11 2013-09-03 2Wire Inc. Periodic impulse noise mitigation in a dsl system
US20060104341A1 (en) * 2004-11-16 2006-05-18 Magee David P Systems and methods for providing training data
US7953163B2 (en) 2004-11-30 2011-05-31 Broadcom Corporation Block linear equalization in a multicarrier communication system
US7852950B2 (en) 2005-02-25 2010-12-14 Broadcom Corporation Methods and apparatuses for canceling correlated noise in a multi-carrier communication system
US9374257B2 (en) 2005-03-18 2016-06-21 Broadcom Corporation Methods and apparatuses of measuring impulse noise parameters in multi-carrier communication systems
WO2006105047A2 (en) * 2005-03-25 2006-10-05 Nokia Corporation Method and apparatus for co-channel interference reduction in single-sideband ofdm transmissions
EP1734711A1 (de) * 2005-06-13 2006-12-20 Alcatel Verfahren zur OFDM-Symbolfolgeanpassung für das Vermeiden von benachbarter Subträgerinterferenz, Sender, Programmmodul und Mobilfunknetz dafür
US20070011554A1 (en) * 2005-06-27 2007-01-11 Intel Corporation Block acknowledgement request apparatus, systems, and methods
US9042212B2 (en) * 2005-07-29 2015-05-26 Qualcomm Incorporated Method and apparatus for communicating network identifiers in a communication system
US9391751B2 (en) * 2005-07-29 2016-07-12 Qualcomm Incorporated System and method for frequency diversity
KR20080068833A (ko) * 2005-11-04 2008-07-24 톰슨 라이센싱 저 신호 대 잡음비의 ａｔｓｃ 신호를 센싱하기 위한 장치및 방법
CN101370469A (zh) * 2005-12-16 2009-02-18 荷兰联合利华有限公司 头发处理组合物
US7813439B2 (en) 2006-02-06 2010-10-12 Broadcom Corporation Various methods and apparatuses for impulse noise detection
GB0609601D0 (en) * 2006-05-15 2006-06-21 Ttp Communications Ltd Timing errors
KR100821921B1 (ko) * 2006-10-23 2008-04-16 전자부품연구원 리피티션 코딩과 딥 페이드 디텍션을 이용한 직교주파수분할다중시스템의 채널간 간섭제거 방법
US8014457B2 (en) * 2006-10-31 2011-09-06 Freescale Semiconductor, Inc. Method of providing a data signal for channel estimation and circuit thereof
US7684504B2 (en) * 2006-10-31 2010-03-23 Freescale Semiconductor, Inc. System and method for reducing edge effect
DE602007014174D1 (de) * 2007-02-05 2011-06-09 Sequans Comm Verfahren und Vorrichtung zur Zeitsynchronisation und Scanning von Nachbarzellen für zelluläre OFDM-Systeme
JP5317223B2 (ja) * 2007-05-16 2013-10-16 トムソン ライセンシング 信号を符号化および復号する方法および装置
US8031586B2 (en) * 2007-08-15 2011-10-04 Nokia Corporation Method and apparatus for transmitter timing adjustment
TWI366350B (en) * 2007-09-05 2012-06-11 Ite Tech Inc Apparatus for channel estimation
CN101828396A (zh) * 2007-10-15 2010-09-08 汤姆森特许公司 传达突发模式活动的装置和方法
EP2521295A3 (de) 2007-10-15 2013-10-23 Thomson Licensing Hochauflösende Fernsehübertragung mit mobiler Funktionalität
JP4766072B2 (ja) * 2008-05-20 2011-09-07 ソニー株式会社 通信装置
JP5288595B2 (ja) * 2008-06-27 2013-09-11 京楽産業．株式会社 多重伝送装置及び多重伝送方法
JP5288596B2 (ja) * 2008-06-27 2013-09-11 京楽産業．株式会社 多重伝送装置及び多重伝送方法
JP5216440B2 (ja) * 2008-06-27 2013-06-19 京楽産業．株式会社 多重伝送装置及び多重伝送方法
JP5294447B2 (ja) * 2008-06-27 2013-09-18 京楽産業．株式会社 多重伝送装置及び多重伝送方法
US8605837B2 (en) 2008-10-10 2013-12-10 Broadcom Corporation Adaptive frequency-domain reference noise canceller for multicarrier communications systems
JP2009135940A (ja) * 2009-01-07 2009-06-18 Victor Co Of Japan Ltd Ｏｆｄｍ信号、ｎａｋ信号
JP5104829B2 (ja) * 2009-08-26 2012-12-19 株式会社Ｊｖｃケンウッド Ｏｆｄｍ信号の受信装置およびｏｆｄｍ信号の受信方法
US8699625B2 (en) * 2011-02-09 2014-04-15 Nec Laboratories America, Inc. Generalized OFDM (GOFDM) for ultra-high-speed serial optical transport networks
US9419830B2 (en) * 2012-03-28 2016-08-16 Intel Corporation Device, system and method of communicating a wireless communication orthogonal-frequency-division-multiplexing signal
US8953726B2 (en) * 2012-06-01 2015-02-10 Qualcomm Incorporated Antenna selection technique for fast diversity
US10250423B2 (en) * 2015-06-11 2019-04-02 U-Blox Ag Modem apparatus, communications system and method of processing a cyclic prefix
CN112379585A (zh) * 2020-11-12 2021-02-19 中国船舶重工集团公司第七0七研究所 基于光纤环形架构下具备节点跳跃能力的时频系统及方法

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA2154678C (en) * 1993-12-03 2003-01-28 Paulus George Maria De Bot A digital communication system and a receiver for use in such a system
US5758274A (en) 1996-03-13 1998-05-26 Symbol Technologies, Inc. Radio frequency receiver with automatic gain control
US6169751B1 (en) * 1997-03-10 2001-01-02 Matsushita Electric Industrial Co., Ltd. OFDM receiving apparatus
JP3797397B2 (ja) * 1997-05-02 2006-07-19 ソニー株式会社 受信装置および受信方法
JPH1117643A (ja) * 1997-06-19 1999-01-22 Hitachi Denshi Ltd Ｏｆｄｍ変調器
KR100442816B1 (ko) * 1998-07-08 2004-09-18 삼성전자주식회사 직교주파수분할다중화(ofdm)수신기 동기화 방법 및 장치
EP1705852B1 (de) * 1999-01-08 2010-02-10 Sony Deutschland Gmbh Synchronisierungssymbolstruktur für ein OFDM-System
US6611551B1 (en) * 1999-01-21 2003-08-26 Cisco Technology, Inc. OFDM channel identification
US6539063B1 (en) * 1999-02-18 2003-03-25 Ibiquity Digital Corporation System and method for recovering symbol timing offset and carrier frequency error in an OFDM digital audio broadcast system
JP3412558B2 (ja) * 1999-04-30 2003-06-03 日本電気株式会社 クロック周波数制御方法及びこれに用いる受信装置
AU740804B2 (en) * 1999-07-19 2001-11-15 Nippon Telegraph & Telephone Corporation OFDM packet communication receiver system
US6587526B1 (en) * 1999-10-12 2003-07-01 Lucent Technologies Inc. Apparatus and method for timing synchronization in OFDM-based wireless systems

Also Published As

Publication number Publication date
EP1193933A2 (de) 2002-04-03
DE60135193D1 (de) 2008-09-18
AU6564201A (en) 2002-04-11
AU781609B2 (en) 2005-06-02
US6754170B1 (en) 2004-06-22
EP1193933A3 (de) 2005-06-22
JP2002185428A (ja) 2002-06-28
EP1193933B1 (de) 2008-08-06

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