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NO990774L - Multi-bµrer transmisjonssystem der kanalinformasjonen overf°res mellom transceivere, og sender for et slikt system - Google Patents

Multi-bµrer transmisjonssystem der kanalinformasjonen overf°res mellom transceivere, og sender for et slikt system

Info

Publication number
NO990774L
NO990774L NO990774A NO990774A NO990774L NO 990774 L NO990774 L NO 990774L NO 990774 A NO990774 A NO 990774A NO 990774 A NO990774 A NO 990774A NO 990774 L NO990774 L NO 990774L
Authority
NO
Norway
Prior art keywords
transceivers
channel information
transmitted
parameter
carrier transmission
Prior art date
Application number
NO990774A
Other languages
English (en)
Other versions
NO990774D0 (no
Inventor
Mikael Isaksson
Magnus Johansson
Harry Tonvall
Lennart Olsson
Tomas Stefansson
Hans Ihman
Gunnar Bahlenberg
Anders Isaksson
G Ran Ikvist
Lis-Marie Ljunggren
M Tomas Nordstr
Lars-Ke Isaksson
Daniel Bengtsson
Siwert Hokansson
Ye Wen
Original Assignee
Telia Ab
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 SE9603194A external-priority patent/SE506641C2/sv
Application filed by Telia Ab filed Critical Telia Ab
Publication of NO990774D0 publication Critical patent/NO990774D0/no
Publication of NO990774L publication Critical patent/NO990774L/no

Links

Classifications

    • 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
    • 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
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/0091—Signalling for the administration of the divided path, e.g. signalling of configuration information
    • H04L5/0094—Indication of how sub-channels of the path are allocated
    • 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
    • H04L1/0064—Concatenated codes
    • H04L1/0065—Serial concatenated 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
    • H04L2025/03433—Arrangements for removing intersymbol interference characterised by equaliser structure
    • H04L2025/03439—Fixed structures
    • H04L2025/03445—Time domain
    • H04L2025/03471—Tapped delay lines
    • H04L2025/03484—Tapped delay lines time-recursive
    • H04L2025/0349—Tapped delay lines time-recursive as a feedback filter
    • 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
    • H04L2025/03592—Adaptation methods
    • H04L2025/03598—Algorithms
    • H04L2025/03681—Control of adaptation
    • H04L2025/037—Detection of convergence state
    • 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
    • H04L2025/03777—Arrangements for removing intersymbol interference characterised by the signalling
    • H04L2025/03802—Signalling on the reverse channel
    • 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
    • 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
    • H04L5/0048—Allocation of pilot signals, i.e. of signals known to the receiver

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Quality & Reliability (AREA)
  • Power Engineering (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
  • Seal Device For Vehicle (AREA)
  • Telephonic Communication Services (AREA)

Abstract

Det beskrives et multibærer transmisjonssystem , for eksempel et DMT-system, hvori kanalinformasjon overføres mellom to tranceivere som anvender et flertall av sub- bærere, kjennetegnet ved at hver sub-bærer, eller symbol, har en parameter assosiert dertil, og at nevnte tranceivere er tilpasset for å overføre nevnte kanalinformasjon som en sekvens av n grupper, hvori hver av nevnte n grupper inneholder informasjon vedrørende antallet tilgrensende sub-bærere som har den same verdi som nevnte parameter, sammen med den aktuelle verdi for parameteren. Parameteren som kan ha et flertall diskrete verdier, kan være en bit- lastingsverdi, eller en QAM-konstellasjonsidentifiserer.
NO990774A 1996-09-02 1999-02-19 Multi-bµrer transmisjonssystem der kanalinformasjonen overf°res mellom transceivere, og sender for et slikt system NO990774L (no)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE9603194A SE506641C2 (sv) 1996-05-24 1996-09-02 Förbättringar av, eller med avseende på, multibärvågssystem
PCT/SE1997/001457 WO1998010552A2 (en) 1996-09-02 1997-09-01 Improvements in, or relating to, multi-carrier transmission systems

Publications (2)

Publication Number Publication Date
NO990774D0 NO990774D0 (no) 1999-02-19
NO990774L true NO990774L (no) 1999-04-29

Family

ID=20403752

Family Applications (1)

Application Number Title Priority Date Filing Date
NO990774A NO990774L (no) 1996-09-02 1999-02-19 Multi-bµrer transmisjonssystem der kanalinformasjonen overf°res mellom transceivere, og sender for et slikt system

Country Status (7)

Country Link
US (1) US6366554B1 (no)
EP (1) EP0922344B1 (no)
JP (1) JP2000517511A (no)
AT (1) ATE233452T1 (no)
DE (1) DE69719336D1 (no)
NO (1) NO990774L (no)
WO (1) WO1998010552A2 (no)

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US6563841B1 (en) * 1999-08-30 2003-05-13 Nec Usa, Inc. Per-bin adaptive equalization in windowed DMT-type modem receiver
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ATE343879T1 (de) 2000-01-07 2006-11-15 Aware Inc Diagnostische verfahren und systeme für mehrträgermodems
ES2542841T3 (es) * 2000-01-28 2015-08-12 Alcatel Lucent Transmisión de tablas de asignación de bits y de ganancia en sistemas multiportadora
US6944120B2 (en) * 2000-04-12 2005-09-13 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
ATE513401T1 (de) 2000-04-18 2011-07-15 Aware Inc Mehrträgersystem mit einer mehrzahl von snr- abständen
US6963603B1 (en) * 2000-06-06 2005-11-08 Ikanos Communication, Inc. Method and apparatus for pre-compensation of an XDSL modem
EP1162777A1 (en) 2000-06-07 2001-12-12 Alcatel Multi-carrier comunication system with sample rate pilot carrier and time division duplexing frame rate pilot carrier
FI112307B (fi) 2000-08-02 2003-11-14 Nokia Corp Viestintäpalvelu
US7746832B2 (en) 2001-01-05 2010-06-29 Qualcomm Incorporated Method and apparatus for supporting adaptive multi-rate (AMR) data in a CDMA communication system
US6748011B2 (en) * 2001-01-09 2004-06-08 Qualcomm, Incorporated Efficient multicarrier filter
US6914952B2 (en) * 2001-01-19 2005-07-05 3Com Corporation Superframe alignment to a pre-existing ADSL data exchange
US6975583B2 (en) * 2001-05-14 2005-12-13 Intel Corporation Technique for continuous OFDM modulation
US20030177280A1 (en) * 2002-03-12 2003-09-18 Webster Steve R. Imbedded interrupt handler
US20050259566A1 (en) * 2001-09-12 2005-11-24 Jae-Hak Chung Method and apparatus for transferring channel information in ofdm communications
ES2220886T3 (es) * 2002-01-07 2004-12-16 Alcatel Optimizacion de la carga de bits para vdsl.
US20040120482A1 (en) * 2002-12-20 2004-06-24 Bentley Ronald Locker System and method for reducing disruption in a DSL environment caused by a pots transient event
TW200522623A (en) 2003-03-03 2005-07-01 Interdigital Tech Corp Reduced complexity sliding window based equalizer
US7042967B2 (en) * 2003-03-03 2006-05-09 Interdigital Technology Corporation Reduced complexity sliding window based equalizer
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US7876813B2 (en) * 2007-01-12 2011-01-25 Lantiq Deutschland Gmbh Communication system, device and data transmission method
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
CN101247169A (zh) * 2007-02-15 2008-08-20 华为技术有限公司 一种在通信网络中实现时间同步的方法和系统以及设备
JP4417997B2 (ja) * 2007-12-13 2010-02-17 株式会社東芝 オーバーレイネットワークシステム、同システムにおけるオーバーレイネットワーク構築・維持方法、及びプログラム
US8427944B2 (en) * 2008-05-19 2013-04-23 Entropic Communications, Inc. Bitloading applied to network multicast messages

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US5187711A (en) * 1988-09-20 1993-02-16 Fujitsu Limited Error correction method for multicarrier radio transmission system
FR2658017B1 (fr) 1990-02-06 1992-06-05 France Etat Procede de diffusion de donnees numeriques, notamment pour la radiodiffusion a haut debit vers des mobiles, a entrelacement temps-frequence et aide a l'acquisition de la commande automatique de frequence, et recepteur correspondant.
US5285474A (en) * 1992-06-12 1994-02-08 The Board Of Trustees Of The Leland Stanford, Junior University Method for equalizing a multicarrier signal in a multicarrier communication system
KR970009687B1 (ko) * 1993-06-02 1997-06-17 삼성전자 주식회사 디지탈통신을 위한 적응 등화시스템
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Also Published As

Publication number Publication date
EP0922344B1 (en) 2003-02-26
NO990774D0 (no) 1999-02-19
JP2000517511A (ja) 2000-12-26
ATE233452T1 (de) 2003-03-15
DE69719336D1 (de) 2003-04-03
WO1998010552A3 (en) 1998-05-22
WO1998010552A2 (en) 1998-03-12
EP0922344A2 (en) 1999-06-16
US6366554B1 (en) 2002-04-02

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