ATE227912T1 - Verbesserungen bei, oder in bezug auf, mehrträgerübertragungssysteme - Google Patents

Verbesserungen bei, oder in bezug auf, mehrträgerübertragungssysteme

Info

Publication number
ATE227912T1
ATE227912T1 AT97937936T AT97937936T ATE227912T1 AT E227912 T1 ATE227912 T1 AT E227912T1 AT 97937936 T AT97937936 T AT 97937936T AT 97937936 T AT97937936 T AT 97937936T AT E227912 T1 ATE227912 T1 AT E227912T1
Authority
AT
Austria
Prior art keywords
synchronization
carrier transmission
relating
transmission systems
transceiver
Prior art date
Application number
AT97937936T
Other languages
English (en)
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 Haekansson
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 SE9603191A external-priority patent/SE506638C2/sv
Application filed by St Microelectronics Nv filed Critical St Microelectronics Nv
Application granted granted Critical
Publication of ATE227912T1 publication Critical patent/ATE227912T1/de

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
    • 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
    • H04L27/26—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
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Quality & Reliability (AREA)
  • Synchronisation In Digital Transmission Systems (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Telephonic Communication Services (AREA)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
  • Seal Device For Vehicle (AREA)
  • Dental Tools And Instruments Or Auxiliary Dental Instruments (AREA)
  • Reduction Or Emphasis Of Bandwidth Of Signals (AREA)
  • Radar Systems Or Details Thereof (AREA)
  • Time-Division Multiplex Systems (AREA)
AT97937936T 1996-09-02 1997-09-01 Verbesserungen bei, oder in bezug auf, mehrträgerübertragungssysteme ATE227912T1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE9603191A SE506638C2 (sv) 1996-05-24 1996-09-02 Förbättringar av, eller med avseende på, multibärvågssystem
PCT/SE1997/001454 WO1998010549A2 (en) 1996-09-02 1997-09-01 Improvements in, or relating to, multi-carrier transmission systems

Publications (1)

Publication Number Publication Date
ATE227912T1 true ATE227912T1 (de) 2002-11-15

Family

ID=20403749

Family Applications (1)

Application Number Title Priority Date Filing Date
AT97937936T ATE227912T1 (de) 1996-09-02 1997-09-01 Verbesserungen bei, oder in bezug auf, mehrträgerübertragungssysteme

Country Status (7)

Country Link
US (1) US6359926B1 (de)
EP (1) EP0923822B1 (de)
JP (1) JP4016125B2 (de)
AT (1) ATE227912T1 (de)
DE (1) DE69717127T2 (de)
NO (1) NO990771L (de)
WO (1) WO1998010549A2 (de)

Families Citing this family (29)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20060274840A1 (en) * 2005-06-06 2006-12-07 Marcos Tzannes Method for seamlessly changing power modes in an ADSL system
US6735255B1 (en) 1999-05-28 2004-05-11 3Com Corporation Correlation based method of determining frame boundaries of data frames that are periodically extended
EP1061705B1 (de) * 1999-06-16 2004-12-22 Sony International (Europe) GmbH Optimierte Synchronisierungspräambelstruktur für OFDM-System
US6625113B1 (en) * 1999-08-30 2003-09-23 Agere Systems Inc. Digital signal frame and interleaver synchronizer
US6961369B1 (en) 1999-11-09 2005-11-01 Aware, Inc. System and method for scrambling the phase of the carriers in a multicarrier communications system
ATE343879T1 (de) 2000-01-07 2006-11-15 Aware Inc Diagnostische verfahren und systeme für mehrträgermodems
WO2001065794A1 (en) * 2000-02-29 2001-09-07 3Com Corporation Method of multicarrier symbol synchronisation by using correlation
US6788349B2 (en) * 2000-04-12 2004-09-07 Her Majesty Of Queen In Right Of Canada, As Respresented By The Minister Of Industry Method and system for broadcasting a digital data signal within an analog TV signal using Orthogonal Frequency Division Multiplexing
CA2406151C (en) 2000-04-18 2010-04-13 Aware, Inc. Data allocation with variable snr margins
EP1162803A1 (de) * 2000-06-05 2001-12-12 Telefonaktiebolaget L M Ericsson (Publ) Frequenznachlaufgerät und -verfahren für einen Empfänger eines Multiträger-Kommunikationssystems
EP1720277B1 (de) * 2000-07-05 2017-09-27 Sony Deutschland Gmbh Pilotmusterentwurf für mehrere Antennen in einem OFDM-System
DE10145166A1 (de) * 2001-09-13 2003-04-24 Siemens Ag Verfahren und Vorrichtung zur Datenübertragung in einem Mehr-Träger-System
US7042967B2 (en) * 2003-03-03 2006-05-09 Interdigital Technology Corporation Reduced complexity sliding window based equalizer
WO2004079927A2 (en) 2003-03-03 2004-09-16 Interdigital Technology Corporation Reduced complexity sliding window based equalizer
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
US7400720B2 (en) * 2004-10-05 2008-07-15 Sbc Knowledge Ventures, L.P. System and method for optimizing digital subscriber line based services
WO2006042274A1 (en) * 2004-10-11 2006-04-20 2Wire, Inc. Periodic impulse noise mitigation in a dsl system
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
US7813439B2 (en) * 2006-02-06 2010-10-12 Broadcom Corporation Various methods and apparatuses for impulse noise detection
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
US8605837B2 (en) 2008-10-10 2013-12-10 Broadcom Corporation Adaptive frequency-domain reference noise canceller for multicarrier communications systems
CN103427875B (zh) * 2012-08-03 2015-05-27 万高(杭州)科技有限公司 同轴电缆宽带接入的模拟前端系统
CN103457633B (zh) * 2012-08-03 2015-03-11 万高(杭州)科技有限公司 一种回波噪声消除全混合线接口
US10560254B1 (en) * 2017-08-15 2020-02-11 L3 Technologies Inc. Picosecond LPD time alignment
KR102457566B1 (ko) * 2018-02-22 2022-10-21 한국전자통신연구원 데이터 패킷의 버스트의 길이에 기초하여 변복조를 수행하는 변복조기 및 상기 복조기가 수행하는 방법
CN111541475B (zh) * 2020-04-23 2022-02-08 中国电子科技集团公司第五十四研究所 一种卫星移动通信系统话音业务中时频同步方法

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE9302453L (sv) 1993-07-20 1994-10-17 Telia Ab Förfarande och anordning för synkronisering i digitalt transmissionssystem av typen OFDM
US5444697A (en) * 1993-08-11 1995-08-22 The University Of British Columbia Method and apparatus for frame synchronization in mobile OFDM data communication
JP2731722B2 (ja) * 1994-05-26 1998-03-25 日本電気株式会社 クロック周波数自動制御方式及びそれに用いる送信装置と受信装置
US5625651A (en) * 1994-06-02 1997-04-29 Amati Communications, Inc. Discrete multi-tone data transmission system using an overhead bus for synchronizing multiple remote units
DK1021901T3 (da) * 1997-10-10 2010-03-08 Daphimo Co B V Llc Splitterløst multibærermodem
US6222891B1 (en) * 1998-11-03 2001-04-24 Broadcom Corporation Timing recovery using the pilot signal in high definition TV

Also Published As

Publication number Publication date
JP2000517508A (ja) 2000-12-26
NO990771D0 (no) 1999-02-19
DE69717127D1 (de) 2002-12-19
EP0923822B1 (de) 2002-11-13
WO1998010549A3 (en) 1998-05-22
DE69717127T2 (de) 2003-07-31
JP4016125B2 (ja) 2007-12-05
US6359926B1 (en) 2002-03-19
EP0923822A2 (de) 1999-06-23
NO990771L (no) 1999-04-30
WO1998010549A2 (en) 1998-03-12

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Legal Events

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