SG55399A1 - Timing synchronization in a receiver employing orthogonal frequency division multiplexing - Google Patents

Timing synchronization in a receiver employing orthogonal frequency division multiplexing

Info

Publication number
SG55399A1
SG55399A1 SG1997003867A SG1997003867A SG55399A1 SG 55399 A1 SG55399 A1 SG 55399A1 SG 1997003867 A SG1997003867 A SG 1997003867A SG 1997003867 A SG1997003867 A SG 1997003867A SG 55399 A1 SG55399 A1 SG 55399A1
Authority
SG
Singapore
Prior art keywords
frequency division
division multiplexing
orthogonal frequency
timing synchronization
receiver employing
Prior art date
Application number
SG1997003867A
Other languages
English (en)
Inventor
David Huw Davies
Jonathan Parker
Anthony Peter John Claydon
Original Assignee
Discovision Ass
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 Discovision Ass filed Critical Discovision Ass
Publication of SG55399A1 publication Critical patent/SG55399A1/en

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
    • H04L27/2602—Signal structure
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/004—Arrangements for detecting or preventing errors in the information received by using forward error control
    • H04L1/0045—Arrangements at the receiver end
    • H04L1/0047—Decoding adapted to other signal detection operation
    • 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
    • H04L25/0212—Channel estimation of impulse response
    • H04L25/0214—Channel estimation of impulse response of a single coefficient
    • 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
    • H04L25/0224—Channel estimation using sounding signals
    • H04L25/0228—Channel estimation using sounding signals with direct estimation from sounding signals
    • H04L25/023—Channel estimation using sounding signals with direct estimation from sounding signals with extension to other symbols
    • H04L25/0232—Channel estimation using sounding signals with direct estimation from sounding signals with extension to other symbols by interpolation between sounding signals
    • 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
    • H04L27/2649—Demodulators
    • H04L27/265—Fourier transform demodulators, e.g. fast Fourier transform [FFT] or discrete Fourier transform [DFT] demodulators
    • 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
    • H04L27/2666—Acquisition of further OFDM parameters, e.g. bandwidth, subcarrier spacing, or guard interval length
    • 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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/02—Channels characterised by the type of signal
    • H04L5/023—Multiplexing of multicarrier modulation signals, e.g. multi-user orthogonal frequency division multiple access [OFDMA]
    • H04L5/026—Multiplexing of multicarrier modulation signals, e.g. multi-user orthogonal frequency division multiple access [OFDMA] using code division
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/004—Arrangements for detecting or preventing errors in the information received by using forward error control
    • H04L1/0056—Systems characterized by the type of code used
    • H04L1/0071—Use of interleaving

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Power Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Discrete Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Mathematical Physics (AREA)
  • Synchronisation In Digital Transmission Systems (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
  • Television Systems (AREA)
SG1997003867A 1996-10-31 1997-10-25 Timing synchronization in a receiver employing orthogonal frequency division multiplexing SG55399A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GBGB9622728.5A GB9622728D0 (en) 1996-10-31 1996-10-31 Timing synchronization in a reciever employing orthogonal frequency division mutiplexing

Publications (1)

Publication Number Publication Date
SG55399A1 true SG55399A1 (en) 1998-12-21

Family

ID=10802265

Family Applications (1)

Application Number Title Priority Date Filing Date
SG1997003867A SG55399A1 (en) 1996-10-31 1997-10-25 Timing synchronization in a receiver employing orthogonal frequency division multiplexing

Country Status (13)

Country Link
EP (1) EP0840485B1 (fr)
JP (1) JP4142758B2 (fr)
KR (1) KR19980033375A (fr)
CN (1) CN1181673A (fr)
AR (2) AR008906A1 (fr)
AT (1) ATE196218T1 (fr)
AU (1) AU737361B2 (fr)
CA (1) CA2199111A1 (fr)
DE (1) DE69703016T2 (fr)
GB (2) GB9622728D0 (fr)
ID (1) ID19373A (fr)
IL (1) IL122020A (fr)
SG (1) SG55399A1 (fr)

Families Citing this family (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100234329B1 (ko) * 1997-09-30 1999-12-15 윤종용 Ofdm 시스템 수신기의 fft 윈도우 위치 복원장치 및 그 방법_
US6167351A (en) * 1998-03-24 2000-12-26 Tektronix, Inc. Period determination of a periodic signal
WO2000011824A1 (fr) 1998-08-24 2000-03-02 Mitsubishi Denki Kabushiki Kaisha Modulateur de signaux et procede de commande de reception associe
KR100510637B1 (ko) * 1998-11-07 2006-02-28 엘지전자 주식회사 Dvb 시스템의 동기 검출 장치
GB2353680A (en) * 1999-08-27 2001-02-28 Mitsubishi Electric Inf Tech OFDM frame synchronisation
US6967936B1 (en) * 2000-02-11 2005-11-22 Lucent Technologies Inc. Uplink timing synchronization and access control for a multi-access wireless communication system
SG108240A1 (en) * 2000-02-23 2005-01-28 Ntt Docomo Inc Multi-carrier cdma radio transmitting method and apparatus, and channel estimation method and apparatus for multi-carrier cdma radio transmitting system
US6920182B2 (en) 2001-01-09 2005-07-19 Microtune (Texas), L.P. Delta-sigma modulator system and method
KR100425297B1 (ko) * 2001-06-11 2004-03-30 삼성전자주식회사 효율적인 심볼 타이밍 옵셋을 추정하는 ｏｆｄｍ 수신시스템 및 그 방법
CN100379212C (zh) * 2002-01-23 2008-04-02 华为技术有限公司 一种查找表电路的实现方法
US7623599B2 (en) * 2005-11-21 2009-11-24 Freescale Semiconductor, Inc. Blind bandwidth detection for a sample stream
JP2008005389A (ja) * 2006-06-26 2008-01-10 Hitachi Ltd 通信方法および通信装置
US8284825B2 (en) * 2008-06-06 2012-10-09 Maxim Integrated Products, Inc. Blind channel quality estimator
EP2494753A2 (fr) 2009-10-30 2012-09-05 Bangor University Procédé de synchronisation dans des systèmes de transmission par multiplexage fréquentiel optique
CN101902677B (zh) * 2010-06-23 2015-01-28 中兴通讯股份有限公司 音频检测装置及方法
KR101121086B1 (ko) * 2010-11-10 2012-03-16 충남대학교산학협력단 유니크 워드 기반 주파수 영역 등화기 기반 단일반송파 방식을 위한 채널 추정 기법
GB2489922A (en) 2011-04-06 2012-10-17 Univ Bangor Synchronising optical OFDM signal with pattern of DC offset levels superimposed upon OFDM symbols
CN117826071B (zh) * 2024-03-06 2024-05-28 成都大公博创信息技术有限公司 基于中频触发实现多采集模块宽带校准的测向系统及方法

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE69427099T2 (de) * 1993-01-20 2001-11-08 Koninklijke Philips Electronics N.V., Eindhoven Übertragungssystem mit Taktrückgewinnung
GB2278257B (en) * 1993-05-05 1996-10-02 British Broadcasting Corp Receiving equipment for digital transmissions
EP0682426B1 (fr) * 1994-05-09 2001-10-24 Victor Company Of Japan, Limited Emetteur et récepteur pour MDFO
SE514986C2 (sv) * 1995-03-01 2001-05-28 Telia Ab Metod och anordning för synkronisering vid OFDM-system
EP0772332A3 (fr) * 1995-11-02 2000-10-11 British Broadcasting Corporation Synchronisation de signaux MDFO

Also Published As

Publication number Publication date
AR008906A1 (es) 2000-02-23
ATE196218T1 (de) 2000-09-15
EP0840485A2 (fr) 1998-05-06
EP0840485B1 (fr) 2000-09-06
ID19373A (id) 1998-07-02
AU737361B2 (en) 2001-08-16
GB2318953A (en) 1998-05-06
JP4142758B2 (ja) 2008-09-03
KR19980033375A (ko) 1998-07-25
GB9622728D0 (en) 1997-01-08
EP0840485A3 (fr) 1998-06-10
CN1181673A (zh) 1998-05-13
JPH10150428A (ja) 1998-06-02
GB9720550D0 (en) 1997-11-26
AR008910A1 (es) 2000-02-23
DE69703016D1 (de) 2000-10-12
DE69703016T2 (de) 2001-04-05
CA2199111A1 (fr) 1998-04-30
IL122020A (en) 2000-11-21
IL122020A0 (en) 1998-03-10
AU3991697A (en) 1998-05-07

Similar Documents

Publication Publication Date Title
GB0009001D0 (en) Orthogonal frequency division multiplexing receiver
SG55399A1 (en) Timing synchronization in a receiver employing orthogonal frequency division multiplexing
GB9521739D0 (en) Decoding carriers encoded using orthogonal frequency division multiplexing
DE69833354D1 (de) Synchronisierung des Trägers in einem Mehrträgerempfänger
HK1010775A1 (en) Synchronization of a stereoscopic video sequence
HU9701136D0 (en) Synchronizing method
FI20001485A (fi) Matkaviestimen ohjaama ajoitussynkronointi CDMA-tietoliikennejärjestelmässä
FI963649A0 (fi) Symbolitahdistuksen ja näytteenottotaajuuden säätömenetelmä OFDM-modukoituja lähetyksiä vastaanottavassa laitteessa sekä menetelmän toteuttava laite
GB2325825B (en) Improvements to ofdm symbol synchronization
GB2300093B (en) Receiver and associated method for timing recovery and frequency estimation
EP0936807A4 (fr) Generateur de signal de synchronisation
GB9610498D0 (en) A frequency selective canceller arrangement
GB9601348D0 (en) Clock synchronisation
AU3617400A (en) Methods and systems for synchronization with multiple frequency offsets and known timing relationships
GB2308278B (en) Receiver synchronisation using punctured preamble
EP0941594A4 (fr) Synchronisation de phase de porteuse par lecture arriere
GB2291569B (en) Synchronization detecting circuit
FI962170A0 (fi) Vastaanotinhaaran valitseminen aikajakokanavoidussa vastaanottimessa pursketyypin perusteella
IL120996A (en) Voice-channel frequency synchronization
GB2312357B (en) Reception timing control in a TDM receiver
GB2294561B (en) Circuit synchronization with multiple clock signals
AU133410S (en) A mug
GB2356090B (en) Clock synchronisation with timing adjust mode
ZA979449B (en) Multi-frame synchronization for parallel channel transmissions.
GB0114117D0 (en) Improvements to ofdm symbol synchronization