ATE235765T1 - Verbesserungen bei, oder in bezug auf mehrträgerübertragungssysteme - Google Patents

Verbesserungen bei, oder in bezug auf mehrträgerübertragungssysteme

Info

Publication number
ATE235765T1
ATE235765T1 AT97937934T AT97937934T ATE235765T1 AT E235765 T1 ATE235765 T1 AT E235765T1 AT 97937934 T AT97937934 T AT 97937934T AT 97937934 T AT97937934 T AT 97937934T AT E235765 T1 ATE235765 T1 AT E235765T1
Authority
AT
Austria
Prior art keywords
carrier
dmt
sampling clock
pilot carrier
fft processor
Prior art date
Application number
AT97937934T
Other languages
English (en)
Inventor
Mikael Isaksson
Magnus Johansson
Harry Tonvall
Lennart Olsson
Thomas Stefansson
Hans Oehman
Gunnar Bahlenberg
Anders Isaksson
Goeran Oekvist
Lis-Marie Ljunggren
Tomas Nordstroem
Lars-Ake Isaksson
Daniel Bengtsson
Siwert Hakansson
Ye Wen
Original Assignee
St Microelectronics 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
Priority claimed from SE9603188A external-priority patent/SE506635C2/sv
Application filed by St Microelectronics Nv filed Critical St Microelectronics Nv
Application granted granted Critical
Publication of ATE235765T1 publication Critical patent/ATE235765T1/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
    • H04L27/2614—Peak power aspects
    • 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
    • H04L27/2657—Carrier 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
    • H04L27/2668—Details of algorithms
    • H04L27/2673—Details of algorithms characterised by synchronisation parameters
    • H04L27/2675—Pilot or known symbols
    • 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
    • H04L27/2656—Frame synchronisation, e.g. packet synchronisation, time division duplex [TDD] switching point detection or subframe synchronisation

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Radar Systems Or Details Thereof (AREA)
  • Reduction Or Emphasis Of Bandwidth Of Signals (AREA)
  • Medicines That Contain Protein Lipid Enzymes And Other Medicines (AREA)
  • Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
  • Orthopedics, Nursing, And Contraception (AREA)
  • Synchronisation In Digital Transmission Systems (AREA)
AT97937934T 1996-09-02 1997-09-01 Verbesserungen bei, oder in bezug auf mehrträgerübertragungssysteme ATE235765T1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE9603188A SE506635C2 (sv) 1996-05-24 1996-09-02 Förbättringar av, eller med avseende på, multibärvågssystem
PCT/SE1997/001451 WO1998010546A2 (en) 1996-09-02 1997-09-01 Improvements in, or relating to, multi-carrier transmission systems

Publications (1)

Publication Number Publication Date
ATE235765T1 true ATE235765T1 (de) 2003-04-15

Family

ID=20403746

Family Applications (1)

Application Number Title Priority Date Filing Date
AT97937934T ATE235765T1 (de) 1996-09-02 1997-09-01 Verbesserungen bei, oder in bezug auf mehrträgerübertragungssysteme

Country Status (7)

Country Link
US (1) US6181714B1 (de)
EP (1) EP0920755B1 (de)
JP (1) JP2001505373A (de)
AT (1) ATE235765T1 (de)
DE (1) DE69720225D1 (de)
NO (1) NO990768L (de)
WO (1) WO1998010546A2 (de)

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US6597745B1 (en) * 1999-04-06 2003-07-22 Eric M. Dowling Reduced complexity multicarrier precoder
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US6625113B1 (en) * 1999-08-30 2003-09-23 Agere Systems Inc. Digital signal frame and interleaver synchronizer
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CA2344117C (en) * 2000-04-12 2009-06-30 Her Majesty The Queen In Right Of Canada As Represented By The Minister Of Industry Method and system for tiered digital television terrestrial broadcasting services using multi-bit-stream frequency interleaved ofdm
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JP4529281B2 (ja) * 2000-12-08 2010-08-25 ソニー株式会社 送信装置、受信装置、および通信システム
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CA2337737A1 (en) * 2001-02-05 2002-08-05 Catena Networks Canada Inc. Improved method for adapting the receiver demodulation structure according to the transmitter ifft size, in dmt-based adsl modems
US6944231B2 (en) * 2001-09-06 2005-09-13 Litton Systems, Inc. Demodulation of multiple-carrier phase-modulated signals
US6944244B2 (en) * 2001-09-18 2005-09-13 Thomson Licensing S.A. Mechanism for OFDM equalizer tap initialization using an adaptive algorithm
WO2003032542A1 (fr) * 2001-09-28 2003-04-17 Fujitsu Limited Procede et dispositif de synchronisation de frequence
GB0126067D0 (en) * 2001-10-31 2001-12-19 Zarlink Semiconductor Ltd Method of and apparatus for detecting impulsive noise method of operating a demodulator demodulator and radio receiver
US7209433B2 (en) * 2002-01-07 2007-04-24 Hitachi, Ltd. Channel estimation and compensation techniques for use in frequency division multiplexed systems
EP1483857A4 (de) * 2002-03-08 2007-08-29 Aware Inc Systeme und verfahren für ofdm-übermittlungen mit hoher rate
US7173991B2 (en) 2002-06-17 2007-02-06 Hitachi, Ltd. Methods and apparatus for spectral filtering channel estimates
US7139340B2 (en) * 2002-06-28 2006-11-21 Hitachi, Ltd. Robust OFDM carrier recovery methods and apparatus
US7633849B1 (en) * 2002-08-13 2009-12-15 National Semiconductor Corporation Coded OFDM system using error control coding and cyclic prefix for channel estimation
US7042967B2 (en) * 2003-03-03 2006-05-09 Interdigital Technology Corporation Reduced complexity sliding window based equalizer
EP1604466A4 (de) * 2003-03-03 2007-06-27 Interdigital Tech Corp Entzerrer auf basis eines gleitenden fensters mit verminderter komplexität
US7065696B1 (en) * 2003-04-11 2006-06-20 Broadlogic Network Technologies Inc. Method and system for providing high-speed forward error correction for multi-stream data
DE60316544T2 (de) * 2003-06-25 2008-07-03 Alcatel Lucent Leistungssteuerungsverfahren für ein fernbedienbaren Kommunikationsdienst
JP4296327B2 (ja) * 2003-09-10 2009-07-15 財団法人日本産業技術振興協会 デジタルデータ伝送装置
US7688766B2 (en) * 2003-09-17 2010-03-30 Intel Corporation Modulation scheme for orthogonal frequency division multiplexing systems or the like
US7639747B2 (en) 2003-10-23 2009-12-29 Harris Corporation System and method for reducing peak-to-average power ratio for multi-carrier communication systems
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US7701917B2 (en) 2004-02-05 2010-04-20 Qualcomm Incorporated Channel estimation for a wireless communication system with multiple parallel data streams
US7321550B2 (en) * 2004-02-17 2008-01-22 Industrial Technology Research Institute Method of equalization in an OFDM system
KR100918736B1 (ko) * 2004-03-05 2009-09-24 삼성전자주식회사 통신 시스템에서 파일럿 신호 송수신 장치 및 방법
AU2005219908B2 (en) * 2004-03-05 2008-08-14 Samsung Electronics Co., Ltd. Apparatus and method for transmitting/receiving pilot signal in communication system using OFDM scheme
KR101015708B1 (ko) * 2004-09-14 2011-02-24 삼성전자주식회사 다중반송파 시스템을 위한 적응적 비트/전력 로딩 기법
TWI308431B (en) * 2005-02-24 2009-04-01 Mediatek Inc Apparatus and method for estimating a clipping parameter of an ofdm system
WO2007032642A1 (en) * 2005-09-14 2007-03-22 Samsung Electronics Co., Ltd. Apparatus and method for decoding burst in an ofdma mobile communication system
US7444128B1 (en) 2006-01-19 2008-10-28 The United States Of America As Represented By The Secretary Of The National Security Agency Method of estimating a high frequency carrier signal
CN100571243C (zh) * 2006-07-14 2009-12-16 华为技术有限公司 一种组帧同步方法
US8139680B2 (en) 2007-01-12 2012-03-20 General Dynamics C4 Systems, Inc. Signal acquisition methods and apparatus in wireless communication systems
US7907679B2 (en) * 2007-01-12 2011-03-15 General Dynamics C4 Systems, Inc. Methods and systems for acquiring signals using coherent match filtering
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KR101278031B1 (ko) * 2008-12-22 2013-06-21 한국전자통신연구원 병렬 자동 주파수 오프셋 추정장치 및 방법
KR102067938B1 (ko) * 2019-01-14 2020-01-17 박천수 제로포스 이퀄라이징 벡터합성 앱솔루트 엔코더 구현방법 및 그 장치

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US5479447A (en) * 1993-05-03 1995-12-26 The Board Of Trustees Of The Leland Stanford, Junior University Method and apparatus for adaptive, variable bandwidth, high-speed data transmission of a multicarrier signal over digital subscriber lines
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US5444697A (en) * 1993-08-11 1995-08-22 The University Of British Columbia Method and apparatus for frame synchronization in mobile OFDM data communication
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CA2183140C (en) * 1996-08-12 2001-11-20 Grant Mcgibney Ofdm timing and frequency recovery system

Also Published As

Publication number Publication date
EP0920755B1 (de) 2003-03-26
US6181714B1 (en) 2001-01-30
WO1998010546A2 (en) 1998-03-12
NO990768D0 (no) 1999-02-19
JP2001505373A (ja) 2001-04-17
NO990768L (no) 1999-04-30
DE69720225D1 (de) 2003-04-30
EP0920755A2 (de) 1999-06-09
WO1998010546A3 (en) 1998-06-04

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Legal Events

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RER Ceased as to paragraph 5 lit. 3 law introducing patent treaties