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DE69724625D1 - Verbesserungen bei, oder in bezug auf mehrträgerübertragungssysteme - Google Patents

Verbesserungen bei, oder in bezug auf mehrträgerübertragungssysteme

Info

Publication number
DE69724625D1
DE69724625D1 DE69724625T DE69724625T DE69724625D1 DE 69724625 D1 DE69724625 D1 DE 69724625D1 DE 69724625 T DE69724625 T DE 69724625T DE 69724625 T DE69724625 T DE 69724625T DE 69724625 D1 DE69724625 D1 DE 69724625D1
Authority
DE
Germany
Prior art keywords
channel
transceivers
carrier
bit loading
control channel
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 - Fee Related
Application number
DE69724625T
Other languages
English (en)
Other versions
DE69724625T2 (de
Inventor
Mikael Isaksson
Magnus Johansson
Harry Tonvall
Lennart Olsson
Tomas Stefansson
Hans Oehman
Gunnar Bahlenberg
Anders Isaksson
Goeran Oekvist
Lis-Marie Ljunggren
Tomas Nordstroem
Lars-Ake Isaksson
Daniel Bengtsson
Siwert Hakansson
Ye Wen
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.)
STMicroelectronics NV
Original Assignee
STMicroelectronics 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 SE9603187A external-priority patent/SE506634C2/sv
Application filed by STMicroelectronics NV filed Critical STMicroelectronics NV
Application granted granted Critical
Publication of DE69724625D1 publication Critical patent/DE69724625D1/de
Publication of DE69724625T2 publication Critical patent/DE69724625T2/de
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • 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
    • H04L1/0001—Systems modifying transmission characteristics according to link quality, e.g. power backoff
    • H04L1/0023—Systems modifying transmission characteristics according to link quality, e.g. power backoff characterised by the signalling
    • H04L1/0025—Transmission of mode-switching indication
    • 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
    • H04L25/03—Shaping networks in transmitter or receiver, e.g. adaptive shaping networks
    • H04L25/03006—Arrangements for removing intersymbol interference
    • H04L25/03159—Arrangements for removing intersymbol interference operating in the frequency domain
    • 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
    • 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
    • H04L27/2662—Symbol synchronisation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/32—Carrier systems characterised by combinations of two or more of the types covered by groups H04L27/02, H04L27/10, H04L27/18 or H04L27/26
    • H04L27/34—Amplitude- and phase-modulated carrier systems, e.g. quadrature-amplitude modulated carrier systems
    • H04L27/345—Modifications of the signal space to allow the transmission of additional information
    • H04L27/3461—Modifications of the signal space to allow the transmission of additional information in order to transmit a subchannel
    • 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
    • H04L5/0001—Arrangements for dividing the transmission path
    • H04L5/0003—Two-dimensional division
    • H04L5/0005—Time-frequency
    • H04L5/0007—Time-frequency the frequencies being orthogonal, e.g. OFDM(A) or DMT
    • 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
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0044—Allocation of payload; Allocation of data channels, e.g. PDSCH or PUSCH
    • H04L5/0046—Determination of the number of bits transmitted on different sub-channels
    • 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
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0058—Allocation criteria
    • H04L5/006—Quality of the received signal, e.g. BER, SNR, water filling
    • 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
    • H04L1/0059—Convolutional codes
    • 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
    • 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
    • H04L25/03—Shaping networks in transmitter or receiver, e.g. adaptive shaping networks
    • H04L25/03006—Arrangements for removing intersymbol interference
    • H04L2025/0335—Arrangements for removing intersymbol interference characterised by the type of transmission
    • H04L2025/03375—Passband transmission
    • H04L2025/03414—Multicarrier
    • 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
    • H04L25/03—Shaping networks in transmitter or receiver, e.g. adaptive shaping networks
    • H04L25/03006—Arrangements for removing intersymbol interference
    • H04L2025/03433—Arrangements for removing intersymbol interference characterised by equaliser structure
    • H04L2025/03439—Fixed structures
    • H04L2025/03522—Frequency domain

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Quality & Reliability (AREA)
  • Power Engineering (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
  • Time-Division Multiplex Systems (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Communication Control (AREA)
  • Medicines That Contain Protein Lipid Enzymes And Other Medicines (AREA)
  • Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
  • Orthopedics, Nursing, And Contraception (AREA)
  • Radar Systems Or Details Thereof (AREA)
  • Reduction Or Emphasis Of Bandwidth Of Signals (AREA)
DE69724625T 1996-09-02 1997-07-15 Verbesserungen bei, oder in bezug auf mehrträgerübertragungssysteme Expired - Fee Related DE69724625T2 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
SE9603187A SE506634C2 (sv) 1996-05-24 1996-09-02 Förbättringar av, eller med avseende på, multibärvågssystem
SE9603187 1996-09-02
PCT/SE1997/001277 WO1998010545A1 (en) 1996-09-02 1997-07-15 Improvements in, or relating to, multi-carrier transmission systems

Publications (2)

Publication Number Publication Date
DE69724625D1 true DE69724625D1 (de) 2003-10-09
DE69724625T2 DE69724625T2 (de) 2004-06-24

Family

ID=20403745

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69724625T Expired - Fee Related DE69724625T2 (de) 1996-09-02 1997-07-15 Verbesserungen bei, oder in bezug auf mehrträgerübertragungssysteme

Country Status (6)

Country Link
US (1) US6865232B1 (de)
EP (1) EP0923821B1 (de)
AT (1) ATE249118T1 (de)
DE (1) DE69724625T2 (de)
NO (1) NO990767L (de)
WO (1) WO1998010545A1 (de)

Families Citing this family (67)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1398898A1 (de) * 1998-04-01 2004-03-17 Matsushita Graphic Communication Systems, Inc. Aktivierung von mehreren xDSL-Modems mit implizitem Kanaltest
US6873652B1 (en) 1998-04-01 2005-03-29 Panasonic Communications Co., Ltd. Activation of multiple xDSL modems with implicit channel probe
EP0969616A1 (de) * 1998-06-30 2000-01-05 Siemens Aktiengesellschaft Verfahren zur Optimierung der verfügbaren Übertragungskapazität bei Teilnehmeranschlussleitungsnetzen
DE69920388T2 (de) * 1998-07-13 2006-02-23 Sony Corp. Mehrträgerkommunikationsverfahren, Sender und Empfänger
WO2000031937A1 (de) * 1998-11-24 2000-06-02 Infineon Technologies Ag Verfahren zur kompensation von störungen bei einem mit diskreter multiton-modulation erzeugten signal und schaltungsanordnung zur durchführung des verfahrens
US6950459B1 (en) 1999-01-08 2005-09-27 Panasonic Communications Co., Ltd. Activation of multiple xDSL modems with half duplex and full duplex procedures
US6516027B1 (en) * 1999-02-18 2003-02-04 Nec Usa, Inc. Method and apparatus for discrete multitone communication bit allocation
ES2297817T3 (es) 1999-03-31 2008-05-01 Alcatel Lucent Metodo y disposicion para estimar las caracteristicas de un canal de transmision.
US6751254B1 (en) 1999-05-05 2004-06-15 Panasonic Communications Co., Ltd. Activation of multiple xDSL modems with power control measurement
US6694470B1 (en) 1999-05-21 2004-02-17 Panasonic Communications Co., Ltd. Retransmission procedure and apparatus for handshaking protocol
US6697420B1 (en) * 1999-05-25 2004-02-24 Intel Corporation Symbol-based signaling for an electromagnetically-coupled bus system
DE19935997A1 (de) * 1999-07-30 2001-03-01 Siemens Ag Verfahren zum Optimieren der Datenübertrgung über Leitungen
ATE516635T1 (de) 2000-01-07 2011-07-15 Aware Inc Diagnostisches verfahren und sender/empfänger für mehrträgermodems
JP2004501535A (ja) 2000-04-18 2004-01-15 アウェア，　インコーポレイテッド 変動マージンを用いたマルチキャリア変調システムおよび方法
DE60133006T2 (de) 2000-06-16 2009-07-02 Thomson Licensing Gleitfensterverarbeitung zum empfang von mehrträgersignalen
KR100697002B1 (ko) * 2001-02-17 2007-03-20 삼성전자주식회사 톤 간격 조절을 포함한 초고속 디지털 가입자회선을 위한초기화 방법 및 이를 지원하는 시스템
US6965638B2 (en) * 2001-04-17 2005-11-15 Texas Instruments Incorporated Increasing performance in modems in presence of noise
US8291457B2 (en) 2001-05-24 2012-10-16 Vixs Systems, Inc. Channel selection in a multimedia system
US20090031419A1 (en) 2001-05-24 2009-01-29 Indra Laksono Multimedia system and server and methods for use therewith
US7295623B2 (en) * 2001-07-11 2007-11-13 Vativ Technologies, Inc. High-speed communications transceiver
US7773699B2 (en) * 2001-10-17 2010-08-10 Nortel Networks Limited Method and apparatus for channel quality measurements
DE10201415B4 (de) 2002-01-15 2004-12-09 Infineon Technologies Ag Verfahren zum Aufbau einer Datenübertragungsverbindung zwischen xDSL-Transceivern und xDSL-Transceiver
EP1530858B1 (de) * 2002-07-16 2010-12-15 IHP GmbH-Innovations for High Performance Microelectronics / Leibniz-Institut für innovative Mikroelektronik Verfahren und gerät zur rahmendetektion und synchronisierung
US7042967B2 (en) 2003-03-03 2006-05-09 Interdigital Technology Corporation Reduced complexity sliding window based equalizer
KR100769097B1 (ko) 2003-03-03 2007-10-23 인터디지탈 테크날러지 코포레이션 복잡도가 감소된 슬라이딩 윈도우 기반의 등화기
US7472199B1 (en) * 2003-03-28 2008-12-30 Qualcomm Incorporated System and method for receiving data at a first rate and adapting the data for being transported at a second rate
FR2853478A1 (fr) * 2003-04-01 2004-10-08 St Microelectronics Sa PROCEDE DE CONFIGURATION D'UN MODEM xDSL ET MODEM xDSL DISPOSANT D'UN TEL PROCEDE
JP3847733B2 (ja) * 2003-06-12 2006-11-22 松下電器産業株式会社 マルチキャリア通信方法及びその通信装置
JP2005057449A (ja) * 2003-08-01 2005-03-03 Matsushita Electric Ind Co Ltd Ａｄｓｌモデム装置及びその通信方法
JP4356392B2 (ja) 2003-08-07 2009-11-04 パナソニック株式会社 通信装置
JP2005064743A (ja) * 2003-08-08 2005-03-10 Matsushita Electric Ind Co Ltd Ａｄｓｌモデム装置及びその通信方法
JP2005064874A (ja) * 2003-08-12 2005-03-10 Matsushita Electric Ind Co Ltd Ｄｓｌモデム装置及び通信制御方法
US7119635B2 (en) 2003-08-29 2006-10-10 Matsushita Electric Industrial Co., Ltd. Electronic component
US7656814B2 (en) 2004-01-26 2010-02-02 At&T Intellectual Property I, L.P. Method of selecting a profile of a digital subscriber line
WO2005086405A2 (en) 2004-03-03 2005-09-15 Aware, Inc. Impulse noise management
US7676839B2 (en) * 2004-03-15 2010-03-09 Xceedid Systems and methods for access control
US7720167B2 (en) * 2004-03-29 2010-05-18 St.Microelectronics Ltd. Power save mode transition using loading translation function
US7184750B2 (en) * 2004-03-30 2007-02-27 Nokia Corporation Smart terminal remote lock and format
US20050232308A1 (en) * 2004-04-19 2005-10-20 Texas Instruments Incorporated Frame alignment and cyclic extension partitioning
WO2005110055A2 (en) * 2004-05-11 2005-11-24 University Of Iowa Research Foundation A method and system for optimal bitloading in communication and data compression systems
MX2007003421A (es) * 2004-09-24 2007-05-23 3M Innovative Properties Co Control de frecuencia en sistemas de control de circuito cerrado.
CN101057438A (zh) 2004-10-12 2007-10-17 阿瓦雷公司 电信环境中的资源共享
US8159942B2 (en) * 2005-03-31 2012-04-17 At&T Intellectual Property I, L.P. Method of selecting a profile of a broadband communication line
WO2006109161A2 (en) * 2005-04-15 2006-10-19 Nokia Corporation Method and apparatus for providing control channel monitoring in a multi-carrier system
US7907509B2 (en) 2005-05-26 2011-03-15 Panasonic Corporation Communication apparatus, integrated circuit and communication method
JP4650104B2 (ja) * 2005-05-26 2011-03-16 パナソニック株式会社 通信装置及び通信方法
US7639995B2 (en) * 2005-06-24 2009-12-29 Agere Systems Inc. Reconfigurable communications circuit operable with data channel and control channel
US8331465B2 (en) 2005-08-23 2012-12-11 Apple Inc. Adaptive two-dimensional channel interpolation
US7974713B2 (en) 2005-10-12 2011-07-05 Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E.V. Temporal and spatial shaping of multi-channel audio signals
EP2178254B1 (de) 2006-04-12 2017-02-08 TQ Delta, LLC Paketwiederübertragung und gemeinsame Speichernutzung
US20070286266A1 (en) * 2006-06-12 2007-12-13 Paist Kenneth W Sideways-fed transmitter
US7881403B2 (en) * 2006-10-10 2011-02-01 Futurewei Technologies, Inc. System for realizing emergency rate adjustment
US7907679B2 (en) * 2007-01-12 2011-03-15 General Dynamics C4 Systems, Inc. Methods and systems for acquiring signals using coherent match filtering
US8139680B2 (en) * 2007-01-12 2012-03-20 General Dynamics C4 Systems, Inc. Signal acquisition methods and apparatus in wireless communication systems
US8565337B2 (en) * 2007-02-07 2013-10-22 Valens Semiconductor Ltd. Devices for transmitting digital video and data over the same wires
US7769052B2 (en) * 2007-04-13 2010-08-03 Lantiq Deutschland Gmbh Transient robust channel for communication systems
KR101462955B1 (ko) * 2008-01-15 2014-11-20 삼성전자주식회사 Ｕｗｂ 통신 시스템의 데이터 송수신 방법 및 장치
CN102209921B (zh) 2008-10-09 2015-11-25 康宁光缆系统有限公司 具有支持来自光学分路器的输入和输出光纤的适配器面板的光纤终端
US8218969B2 (en) * 2009-03-18 2012-07-10 Cisco Technology, Inc. OFDM transponder interface with variable bit transfer rate in optical communications systems
AU2011317244A1 (en) 2010-10-19 2013-05-23 Corning Cable Systems Llc Transition box for multiple dwelling unit fiber optic distribution network
US9219546B2 (en) 2011-12-12 2015-12-22 Corning Optical Communications LLC Extremely high frequency (EHF) distributed antenna systems, and related components and methods
US10110307B2 (en) 2012-03-02 2018-10-23 Corning Optical Communications LLC Optical network units (ONUs) for high bandwidth connectivity, and related components and methods
US20130294486A1 (en) * 2012-05-07 2013-11-07 Marcos C. Tzannes Systems and methods for a multicarrier transceiver with radio frequency interference reduction
US9413575B2 (en) 2013-03-15 2016-08-09 Echelon Corporation Method and apparatus for multi-carrier modulation (MCM) packet detection based on phase differences
US9363128B2 (en) * 2013-03-15 2016-06-07 Echelon Corporation Method and apparatus for phase-based multi-carrier modulation (MCM) packet detection
JP6493045B2 (ja) * 2015-07-10 2019-04-03 株式会社デンソー 車両用無線通信装置および無線通信システム
US10742508B2 (en) * 2018-02-27 2020-08-11 Intel Corporation Customer bandwidth re-distribution in point-to-multipoint access

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
SE9302453L (sv) 1993-07-20 1994-10-17 Telia Ab Förfarande och anordning för synkronisering i digitalt transmissionssystem av typen OFDM
US5400322A (en) * 1993-08-20 1995-03-21 Amati Communications Corp. Updating of bit allocations in a multicarrier modulation transmission system
DE4330665A1 (de) * 1993-09-10 1995-03-16 Thomson Brandt Gmbh Verfahren zur ]bertragung von digitalisierten Fernseh- und/oder Tonrundfunksignalen
SE514809C2 (sv) * 1994-07-13 2001-04-30 Hd Divine Ab Metod och anordning för synkronisering av sändare och mottagare i digitalt system
EP0785645A1 (de) * 1996-01-16 1997-07-23 ALCATEL BELL Naamloze Vennootschap Verfahren und Modem zur adaptiven Zuteilung des Referenzträgers in einem Mehrträgersystem
US6072779A (en) * 1997-06-12 2000-06-06 Aware, Inc. Adaptive allocation for variable bandwidth multicarrier communication
US6370156B2 (en) * 1997-01-31 2002-04-09 Alcatel Modulation/demodulation of a pilot carrier, means and method to perform the modulation/demodulation
US6064692A (en) * 1997-06-20 2000-05-16 Amati Communications Corporation Protocol for transceiver initialization

Also Published As

Publication number Publication date
EP0923821B1 (de) 2003-09-03
DE69724625T2 (de) 2004-06-24
ATE249118T1 (de) 2003-09-15
WO1998010545A1 (en) 1998-03-12
EP0923821A1 (de) 1999-06-23
NO990767L (no) 1999-04-30
NO990767D0 (no) 1999-02-19
US6865232B1 (en) 2005-03-08

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Legal Events

Date Code Title Description
8339 Ceased/non-payment of the annual fee