KR19980033375A - 직교 주파수 분할 다중화 방식을 사용하는 수신기에서의 타이밍동기화 - Google Patents

직교 주파수 분할 다중화 방식을 사용하는 수신기에서의 타이밍동기화 Download PDF

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Publication number
KR19980033375A
KR19980033375A KR1019970057007A KR19970057007A KR19980033375A KR 19980033375 A KR19980033375 A KR 19980033375A KR 1019970057007 A KR1019970057007 A KR 1019970057007A KR 19970057007 A KR19970057007 A KR 19970057007A KR 19980033375 A KR19980033375 A KR 19980033375A
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KR
South Korea
Prior art keywords
output signal
interval
period
block
stream
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KR1019970057007A
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English (en)
Korean (ko)
Inventor
데이비스데이빗후
클레이돈안토니피터존
파커조나단
Original Assignee
데니스피셸
디스커비젼어소우쉬에이트
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Publication of KR19980033375A publication Critical patent/KR19980033375A/ko
Withdrawn legal-status Critical Current

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    • 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)
KR1019970057007A 1996-10-31 1997-10-31 직교 주파수 분할 다중화 방식을 사용하는 수신기에서의 타이밍동기화 Withdrawn KR19980033375A (ko)

Applications Claiming Priority (2)

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
GB9622728.5 1996-10-31

Publications (1)

Publication Number Publication Date
KR19980033375A true KR19980033375A (ko) 1998-07-25

Family

ID=10802265

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019970057007A Withdrawn KR19980033375A (ko) 1996-10-31 1997-10-31 직교 주파수 분할 다중화 방식을 사용하는 수신기에서의 타이밍동기화

Country Status (13)

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

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100541325B1 (ko) * 1998-03-24 2006-01-10 텍트로닉스 인코포레이티드 주기적인 신호의 주기 결정 방법 및 장치
KR101121086B1 (ko) * 2010-11-10 2012-03-16 충남대학교산학협력단 유니크 워드 기반 주파수 영역 등화기 기반 단일반송파 방식을 위한 채널 추정 기법

Families Citing this family (16)

* 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_
JP3850452B2 (ja) * 1998-08-24 2006-11-29 三菱電機株式会社 信号復調装置、およびこの信号復調装置における受信制御方法
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 (en) 2009-10-30 2012-09-05 Bangor University Synchronisation process in optical frequency division multiplexing transmission systems
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
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
EP0608024B1 (fr) * 1993-01-20 2001-04-18 Koninklijke Philips Electronics N.V. Système de transmission avec récupération de rythme
GB2278257B (en) * 1993-05-05 1996-10-02 British Broadcasting Corp Receiving equipment for digital transmissions
DE69534067T2 (de) * 1994-05-09 2006-04-13 Victor Company of Japan, Ltd., Yokohama Einstellung eines Referenzunterträgers bei Mehrträgerübertragung
SE514986C2 (sv) * 1995-03-01 2001-05-28 Telia Ab Metod och anordning för synkronisering vid OFDM-system
EP0772332A3 (en) * 1995-11-02 2000-10-11 British Broadcasting Corporation Synchronisation of OFDM signals

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100541325B1 (ko) * 1998-03-24 2006-01-10 텍트로닉스 인코포레이티드 주기적인 신호의 주기 결정 방법 및 장치
KR101121086B1 (ko) * 2010-11-10 2012-03-16 충남대학교산학협력단 유니크 워드 기반 주파수 영역 등화기 기반 단일반송파 방식을 위한 채널 추정 기법

Also Published As

Publication number Publication date
DE69703016D1 (de) 2000-10-12
GB9622728D0 (en) 1997-01-08
CN1181673A (zh) 1998-05-13
AU737361B2 (en) 2001-08-16
AR008910A1 (es) 2000-02-23
IL122020A0 (en) 1998-03-10
ID19373A (id) 1998-07-02
CA2199111A1 (en) 1998-04-30
EP0840485A2 (en) 1998-05-06
GB9720550D0 (en) 1997-11-26
EP0840485B1 (en) 2000-09-06
EP0840485A3 (en) 1998-06-10
SG55399A1 (en) 1998-12-21
AU3991697A (en) 1998-05-07
IL122020A (en) 2000-11-21
DE69703016T2 (de) 2001-04-05
GB2318953A (en) 1998-05-06
JPH10150428A (ja) 1998-06-02
AR008906A1 (es) 2000-02-23
ATE196218T1 (de) 2000-09-15
JP4142758B2 (ja) 2008-09-03

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Legal Events

Date Code Title Description
PA0109 Patent application

Patent event code: PA01091R01D

Comment text: Patent Application

Patent event date: 19971031

PG1501 Laying open of application
PC1203 Withdrawal of no request for examination
WITN Application deemed withdrawn, e.g. because no request for examination was filed or no examination fee was paid