DK1307973T3 - Systemer og fremgangsmåder til at karakterisere transmissionslinjer i et DSL-miljø med flere bærebølger - Google Patents

Systemer og fremgangsmåder til at karakterisere transmissionslinjer i et DSL-miljø med flere bærebølger

Info

Publication number
DK1307973T3
DK1307973T3 DK01964588.6T DK01964588T DK1307973T3 DK 1307973 T3 DK1307973 T3 DK 1307973T3 DK 01964588 T DK01964588 T DK 01964588T DK 1307973 T3 DK1307973 T3 DK 1307973T3
Authority
DK
Denmark
Prior art keywords
data
modems
systems
methods
transmission lines
Prior art date
Application number
DK01964588.6T
Other languages
English (en)
Inventor
Halil Padir
Murat Belge
Michael A Tzannes
Original Assignee
Aware Inc
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
Application filed by Aware Inc filed Critical Aware Inc
Application granted granted Critical
Publication of DK1307973T3 publication Critical patent/DK1307973T3/da

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00—Data switching networks
    • H04L12/02—Details
    • H04L12/16—Arrangements for providing special services to substations
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B3/00—Line transmission systems
    • H04B3/02—Details
    • H04B3/46—Monitoring; Testing
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B3/00—Line transmission systems
    • H04B3/02—Details
    • H04B3/46—Monitoring; Testing
    • H04B3/487—Testing crosstalk effects
    • 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
    • H04L1/0002—Systems modifying transmission characteristics according to link quality, e.g. power backoff by adapting the transmission rate
    • 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
    • H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
    • H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
    • H04L1/18—Automatic repetition systems, e.g. Van Duuren systems
    • 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
    • H04L1/24—Testing correct operation
    • 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
    • H04L1/24—Testing correct operation
    • H04L1/245—Testing correct operation by using the properties of transmission codes
    • 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—Arrangements for allocating sub-channels of the transmission path allocation of payload
    • H04L5/0046—Determination of how many bits are 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
    • H04L5/14—Two-way operation using the same type of signal, i.e. duplex
    • H04L5/1438—Negotiation of transmission parameters prior to communication
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M3/00—Automatic or semi-automatic exchanges
    • H04M3/22—Arrangements for supervision, monitoring or testing
    • H04M3/2227—Quality of service monitoring
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M3/00—Automatic or semi-automatic exchanges
    • H04M3/22—Arrangements for supervision, monitoring or testing
    • H04M3/26—Arrangements for supervision, monitoring or testing with means for applying test signals or for measuring
    • H04M3/28—Automatic routine testing ; Fault testing; Installation testing; Test methods, test equipment or test arrangements therefor
    • H04M3/30—Automatic routine testing ; Fault testing; Installation testing; Test methods, test equipment or test arrangements therefor for subscriber's lines, for the local loop
    • H04M3/305—Automatic routine testing ; Fault testing; Installation testing; Test methods, test equipment or test arrangements therefor for subscriber's lines, for the local loop testing of physical copper line parameters, e.g. capacitance or resistance
    • H04M3/306—Automatic routine testing ; Fault testing; Installation testing; Test methods, test equipment or test arrangements therefor for subscriber's lines, for the local loop testing of physical copper line parameters, e.g. capacitance or resistance for frequencies above the voice frequency, e.g. xDSL line qualification
    • 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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M3/00—Automatic or semi-automatic exchanges
    • H04M3/22—Arrangements for supervision, monitoring or testing
    • H04M3/2209—Arrangements for supervision, monitoring or testing for lines also used for data transmission
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
    • Y02D30/00—Reducing energy consumption in communication networks
    • Y02D30/50—Reducing energy consumption in communication networks in wire-line communication networks, e.g. low power modes or reduced link rate

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Quality & Reliability (AREA)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
  • Telephonic Communication Services (AREA)
  • Communication Control (AREA)
  • Maintenance And Management Of Digital Transmission (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
  • Measurement And Recording Of Electrical Phenomena And Electrical Characteristics Of The Living Body (AREA)
  • Interface Circuits In Exchanges (AREA)
DK01964588.6T 2000-08-10 2001-08-10 Systemer og fremgangsmåder til at karakterisere transmissionslinjer i et DSL-miljø med flere bærebølger DK1307973T3 (da)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US22430800P 2000-08-10 2000-08-10
PCT/US2001/041653 WO2002013405A2 (en) 2000-08-10 2001-08-10 Systems and methods for characterizing transmission lines in a multi-carrier dsl environment

Publications (1)

Publication Number Publication Date
DK1307973T3 true DK1307973T3 (da) 2010-05-31

Family

ID=22840086

Family Applications (1)

Application Number Title Priority Date Filing Date
DK01964588.6T DK1307973T3 (da) 2000-08-10 2001-08-10 Systemer og fremgangsmåder til at karakterisere transmissionslinjer i et DSL-miljø med flere bærebølger

Country Status (12)

Country Link
US (6) US20020114383A1 (da)
EP (4) EP2267914A3 (da)
JP (1) JP4694093B2 (da)
KR (2) KR101211871B1 (da)
AT (1) ATE461559T1 (da)
AU (1) AU2001285426A1 (da)
CA (2) CA2789759C (da)
DE (1) DE60141584D1 (da)
DK (1) DK1307973T3 (da)
ES (1) ES2341703T3 (da)
PT (1) PT1307973E (da)
WO (1) WO2002013405A2 (da)

Families Citing this family (83)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2001052439A1 (en) 2000-01-07 2001-07-19 Aware, Inc. Systems and methods for loop length and bridged tap length determination of a transmission line
EP2267914A3 (en) 2000-01-07 2012-09-26 Aware, Inc. Systems and methods for loop length and bridged tap length determination of a transmission line
US6885954B2 (en) * 2001-03-16 2005-04-26 Mindspeed Technologies, Inc. Sequence time domain reflectometry using complementary golay codes
US6934655B2 (en) * 2001-03-16 2005-08-23 Mindspeed Technologies, Inc. Method and apparatus for transmission line analysis
US6947857B2 (en) * 2001-03-16 2005-09-20 Mindspeed Technologies, Inc. Optical sequence time domain reflectometry during data transmission
KR20040015141A (ko) * 2001-04-26 2004-02-18 어웨어, 인크. 양단 측정으로부터의 루프 특성을 위한 시스템 및 방법
US7260067B2 (en) * 2001-05-22 2007-08-21 Agere Systems Inc. Spectrum and bin reassignment protocol for ADSL
US6653844B2 (en) * 2001-07-27 2003-11-25 Acterna, Llc System and method for providing a time varying gain TDR to display abnormalities of a communication cable or the like
US20030068024A1 (en) * 2001-10-05 2003-04-10 Jones William W. Communication system activation
US6842012B2 (en) * 2001-11-07 2005-01-11 Aware, Inc. Modeling and calibrating a three-port time-domain reflectometry system
JP2005527891A (ja) * 2002-03-21 2005-09-15 ユナイテッド　パーセル　サービス　オブ　アメリカ　インコーポレイテッド テレマティックプログラミング論理制御ユニットおよびその使用方法
WO2003088608A1 (en) * 2002-04-17 2003-10-23 Infineon Technologies Ag Method for retrieving information transmitted with a signal over a signal channel and corresponding signal processing apparatus
DE10226348A1 (de) * 2002-06-13 2004-01-15 Infineon Technologies Ag Verfahren und Schaltungsanordnung zur Erkennung von Pupinspulen
US7239680B2 (en) * 2002-07-17 2007-07-03 Broadcom Corporation Methods for performing channel diagnostics
US7190718B2 (en) * 2002-07-17 2007-03-13 Broadcom Corporation Method and apparatus for determining a receiver sampling phase for use in diagnosing a channel
EP1623521B1 (en) * 2003-05-12 2015-03-11 Broadcom Corporation System and method for telecommunication diagnostic information management
US20050026572A1 (en) * 2003-07-28 2005-02-03 Texas Instruments Incorporated Noise determiner, a DSL modem including a noise determiner and a method of determining noise in a communications system
JP4348138B2 (ja) * 2003-08-01 2009-10-21 パナソニック株式会社 Ａｄｓｌモデム装置
KR101051250B1 (ko) * 2003-08-21 2011-07-21 어웨어, 인크. 비선형 장치 검출
DE10342557A1 (de) * 2003-09-15 2005-04-14 Siemens Ag Verfahren und Kommunikationsanordnung zur Überprüfung von Teilnehmeranschlußleitungen
US7386039B2 (en) 2003-09-26 2008-06-10 Tollgrade Communications, Inc. Method and apparatus for identifying faults in a broadband network
US7302379B2 (en) * 2003-12-07 2007-11-27 Adaptive Spectrum And Signal Alignment, Inc. DSL system estimation and parameter recommendation
US7924736B2 (en) * 2005-07-10 2011-04-12 Adaptive Spectrum And Signal Alignment, Inc. DSL system estimation
US7809116B2 (en) 2003-12-07 2010-10-05 Adaptive Spectrum And Signal Alignment, Inc. DSL system estimation including known DSL line scanning and bad splice detection capability
US7260361B2 (en) * 2003-12-29 2007-08-21 Intel Corporation Locating interfering devices in wireless networks using channel adaptation metrics
EP1733483B1 (en) * 2004-02-11 2011-05-11 Aware, Inc. Communication channel capacity estimation
EP1569402A1 (en) * 2004-02-26 2005-08-31 Alcatel Digital subscriber line modem with bitloading using channel condition model
US20050195892A1 (en) * 2004-03-05 2005-09-08 Texas Instruments Incorporated Training and updating for multiple input-output wireline communications
US7388906B2 (en) * 2004-05-03 2008-06-17 Sbc Knowledge Ventures, L.P. Method for detecting bridged taps on telephony cable
US8194722B2 (en) * 2004-10-11 2012-06-05 Broadcom Corporation Various methods and apparatuses for impulse noise mitigation
US20060120442A1 (en) * 2004-12-08 2006-06-08 Melsa Peter J System and method to determine loop characteristics
US20060159026A1 (en) * 2005-01-14 2006-07-20 Sbc Knowledge Ventures L.P. Method and apparatus for managing a quality of service for a communication link
US8625547B1 (en) * 2005-03-11 2014-01-07 At&T Intellectual Property Ii, L.P. Two-tier wireless broadband access network
US9374257B2 (en) 2005-03-18 2016-06-21 Broadcom Corporation Methods and apparatuses of measuring impulse noise parameters in multi-carrier communication systems
US7623630B2 (en) * 2005-04-08 2009-11-24 Ikanos Communications, Inc. Double-ended line probing (DELP) for DSL systems
CN1870611A (zh) * 2005-05-26 2006-11-29 华为技术有限公司 估算信道性能参数的方法及系统
US8112247B2 (en) * 2006-03-24 2012-02-07 International Business Machines Corporation Resource adaptive spectrum estimation of streaming data
CN101056342B (zh) * 2006-04-13 2011-04-20 华为技术有限公司 一种在数字用户线技术中进行通信的方法和装置
JP5555488B2 (ja) * 2006-05-01 2014-07-23 アダプティブ スペクトラム アンド シグナル アラインメント インコーポレイテッド 複数のソースからのデータを結合して通信システムを特徴づける方法および装置
US20070274513A1 (en) * 2006-05-04 2007-11-29 Sbc Knowledge Ventures, Lp Method and system for estimating data rate of a local loop
WO2008042882A2 (en) * 2006-10-02 2008-04-10 Conexant Systems, Inc. Systems and methods for single-ended loop testing
US8139496B2 (en) * 2007-03-06 2012-03-20 Spectrum Bridge, Inc. System and method for policing spectrum usage
US20080219413A1 (en) * 2007-03-07 2008-09-11 Conexant Systems, Inc. Systems and methods for loop gauge detection based on per-port calibration
TW200934154A (en) * 2007-12-28 2009-08-01 Panasonic Corp Communication device and communication system
US8750341B2 (en) 2008-01-04 2014-06-10 Mindspeed Technologies, Inc. Method and apparatus for reducing optical signal speckle
US8559532B2 (en) * 2008-01-29 2013-10-15 Aware, Inc. Method and system for detecting non-linear devices
US8295444B2 (en) * 2008-06-13 2012-10-23 Ikanos Communications, Inc. Systems and methods for performing loop analysis based on un-calibrated single-ended line testing
US8300771B2 (en) * 2008-10-02 2012-10-30 Ikanos Communications, Inc. Systems and methods for characterizing loop termination via single-ended line testing
US8605837B2 (en) 2008-10-10 2013-12-10 Broadcom Corporation Adaptive frequency-domain reference noise canceller for multicarrier communications systems
US20100124263A1 (en) * 2008-11-19 2010-05-20 Harris Corporation Systems for determining a reference signal at any location along a transmission media
US20100123618A1 (en) * 2008-11-19 2010-05-20 Harris Corporation Closed loop phase control between distant points
US8170088B2 (en) * 2008-11-19 2012-05-01 Harris Corporation Methods for determining a reference signal at any location along a transmission media
US8249176B2 (en) * 2008-11-20 2012-08-21 At&T Intellectual Property I, Lp Method for determination of bridged taps on a transmission line
EP2389668B1 (en) * 2009-01-23 2016-03-30 Tyco Safety Products Canada Ltd. Alarm monitoring telecommunications line condition detection and automatic calibration
WO2010093300A1 (en) 2009-02-11 2010-08-19 Telefonaktiebolaget L M Ericsson (Publ) Methods and devices for transmission line analysis
AU2009341793B2 (en) * 2009-03-09 2015-09-03 Eskom Holdings Soc Limited Time domain electromagnetic interference monitoring method and system
US8705636B2 (en) * 2009-06-04 2014-04-22 Telefonaktiebolaget L M Ericsson (Publ) Passive single-ended line test
US8127151B2 (en) 2009-10-13 2012-02-28 Lockheed Martin Corporation Hardware-based key generation and recovery
US20110106588A1 (en) * 2009-10-30 2011-05-05 At&T Intellectual Property I, L.P. System and Method to Facilitate Installation of a Digital Subscriber Line
EP2507917A1 (en) 2009-11-30 2012-10-10 Aware, Inc. Methods and systems for detecting metallic faults affecting communications links
CA2798809A1 (en) 2010-05-10 2011-11-17 Adaptive Spectrum And Signal Alignment, Inc. Non-invasive diagnostic transmission line testing
GB2520452B (en) 2010-06-15 2015-07-08 Spectrum Bridge Inc System and method for providing network access to electronic devices
US8369485B2 (en) * 2010-12-07 2013-02-05 At&T Intellectual Property I, L.P. Methods, apparatus, and articles of manufacture to trigger preemptive maintenance in vectored digital subscriber line (DSL) systems
US8532686B2 (en) 2010-12-24 2013-09-10 Spectrum Bridge, Inc. System and method for managing spectrum resources
US8644868B2 (en) 2011-03-07 2014-02-04 Spectrum Bridge, Inc. System and method for managing spectrum allocation
US8577300B2 (en) 2011-04-08 2013-11-05 Spectrum Bridge, Inc. Support for wireless radio device in multiple wireless regulatory domains
US8831625B2 (en) 2011-08-03 2014-09-09 Spectrum Bridge, Inc. Systems and methods for processing spectrum coexistence information to optimize spectrum allocation
US8948801B2 (en) 2011-08-03 2015-02-03 Spectrum Bridge, Inc. Systems and methods for provisioning and allocating a commoditized spectrum object
US9137740B2 (en) 2012-09-10 2015-09-15 Spectrum Bridge, Inc. System and method for providing network access to electronic devices using bandwidth provisioning
EP2712160B1 (en) * 2012-09-24 2014-06-18 Alcatel Lucent Method and device for testing subscriber premises equipment
US8903050B2 (en) 2012-12-06 2014-12-02 At&T Intellectual Property I, L.P. Network analysis based on ambient electromagnetic signals
TWI482465B (zh) * 2012-12-21 2015-04-21 Realtek Semiconductor Corp 依據濾波特性進行補償之訊號傳送裝置及其方法與平衡補償之訊號接收裝置及其方法
CN103905070B (zh) * 2012-12-28 2016-05-25 瑞昱半导体股份有限公司 信号传送装置及方法、平衡补偿的信号接收装置及方法
CN110798303B (zh) * 2013-05-05 2022-08-05 领特贝特林共有限责任两合公司 用于低功率模式的分时
WO2015017252A1 (en) * 2013-07-29 2015-02-05 Ikanos Communications, Inc. Method and apparatus for designing an improved transmit signal for use in a single ended line test (selt)
EP2854299B1 (en) * 2013-09-25 2017-07-12 Alcatel Lucent Method and device for analyzing a communication line
KR102080622B1 (ko) * 2015-03-06 2020-02-25 한온시스템 주식회사 스크롤 압축기
WO2017044015A1 (en) * 2015-09-07 2017-03-16 Telefonaktiebolaget Lm Ericsson (Publ) Method and network node for fft based power detection for lbt in lte laa
US10911052B2 (en) 2018-05-23 2021-02-02 Macom Technology Solutions Holdings, Inc. Multi-level signal clock and data recovery
US11005573B2 (en) 2018-11-20 2021-05-11 Macom Technology Solutions Holdings, Inc. Optic signal receiver with dynamic control
EP3739764A1 (en) * 2019-05-17 2020-11-18 Nokia Solutions and Networks Oy Method and apparatus for determining a bridged tap length
US12013423B2 (en) 2020-09-30 2024-06-18 Macom Technology Solutions Holdings, Inc. TIA bandwidth testing system and method
US11658630B2 (en) 2020-12-04 2023-05-23 Macom Technology Solutions Holdings, Inc. Single servo loop controlling an automatic gain control and current sourcing mechanism

Family Cites Families (32)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4679227A (en) * 1985-05-20 1987-07-07 Telebit Corporation Ensemble modem structure for imperfect transmission media
US5128619A (en) * 1989-04-03 1992-07-07 Bjork Roger A System and method of determining cable characteristics
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
AT406533B (de) 1995-06-26 2000-06-26 Ericsson Austria Ag Verfahren zur bidirektionalen datenübertragung über eine zweidrahtleitung
KR100331437B1 (ko) 1995-06-30 2002-08-08 삼성전자 주식회사 디.엠.티.시스템에서적응형비트교환방법및장치
US5966387A (en) * 1995-09-25 1999-10-12 Bell Atlantic Network Services, Inc. Apparatus and method for correcting jitter in data packets
DE19647833B4 (de) * 1996-11-19 2005-07-07 Deutsches Zentrum für Luft- und Raumfahrt e.V. Verfahren zur gleichzeitigen Funkübertragung digitaler Daten zwischen mehreren Teilnehmerstationen und einer Basisstation
US6014425A (en) * 1997-02-26 2000-01-11 Paradyne Corporation Apparatus and method for qualifying telephones and other attached equipment for optimum DSL operation
US5864602A (en) * 1997-04-28 1999-01-26 Nynex Science & Technologies, Inc. Qualifying telephone line for digital transmission service
US6347217B1 (en) * 1997-05-22 2002-02-12 Telefonaktiebolaget Lm Ericsson (Publ) Link quality reporting using frame erasure rates
US6252900B1 (en) 1997-06-30 2001-06-26 Integrated Telecom Express, Inc. Forward compatible and expandable high speed communications system and method of operation
EP2141847B1 (en) * 1997-10-10 2011-08-17 Daphimo Co. B.V., LLC Splitterless multicarrier modem
EP0966808A2 (en) 1997-11-14 1999-12-29 Tektronix, Inc. Method of operating a digital data distribution network
SE511521C3 (sv) * 1997-11-18 1999-11-22 Telia Ab Foerbaettringar av eller med avseende paa abonnentledningstransmissionssystem
US6058162A (en) * 1997-12-05 2000-05-02 Harris Corporation Testing of digital subscriber loops using multi-tone power ratio (MTPR) waveform
US6075821A (en) 1997-12-16 2000-06-13 Integrated Telecom Express Method of configuring and dynamically adapting data and energy parameters in a multi-channel communications system
JP2000013343A (ja) 1998-04-08 2000-01-14 Fujitsu Ltd 加入者線用伝送方法
US6091713A (en) * 1998-04-13 2000-07-18 Telcordia Technologies, Inc. Method and system for estimating the ability of a subscriber loop to support broadband services
US6292539B1 (en) * 1998-05-29 2001-09-18 Verizon Laboratories Inc. Method and apparatus for digital subscriber loop qualification
EP0987852A3 (en) 1998-09-18 2003-10-15 Nortel Networks Limited Wireline communication system and method of frequency allocation therein
GB9820427D0 (en) 1998-09-18 1998-11-11 Northern Telecom Ltd Wireline communication system and method of frequency allocation therin
DE69931889T2 (de) * 1999-03-31 2007-04-05 Alcatel Verfahren und Anordnung zur Schätzung der Eigenschaften eines Übertragungskanals
US6895081B1 (en) 1999-04-20 2005-05-17 Teradyne, Inc. Predicting performance of telephone lines for data services
US6633545B1 (en) * 1999-07-30 2003-10-14 Cisco Technology, Inc. System and method for determining the data rate capacity of digital subscriber lines
EP2276182B1 (en) 2000-01-07 2020-02-26 TQ Delta, LLC Systems and methods for characterizing transmission lines in a multi-carrier dsl environment
WO2001052439A1 (en) * 2000-01-07 2001-07-19 Aware, Inc. Systems and methods for loop length and bridged tap length determination of a transmission line
EP2267914A3 (en) * 2000-01-07 2012-09-26 Aware, Inc. Systems and methods for loop length and bridged tap length determination of a transmission line
US6253063B1 (en) * 2000-01-25 2001-06-26 Motorola, Inc. Method and apparatus for selecting a communication data rate between mobile and base stations
US6738418B1 (en) * 2000-04-03 2004-05-18 Virata Corporation Method and apparatus for adaptive data allocation in a multi-carrier communication system
EP1830535B1 (en) * 2000-04-18 2011-06-15 Aware, Inc. Multicarrier system with a plurality of SNR margins
US6985444B1 (en) * 2000-06-02 2006-01-10 Teradyne, Inc. Binning of results from loop qualification tests
US6947441B1 (en) * 2000-07-27 2005-09-20 Cisco Technology, Inc. Method and system for verifying spectral compatibility of digital subscriber line connections

Also Published As

Publication number Publication date
WO2002013405A2 (en) 2002-02-14
EP2190127A3 (en) 2014-09-03
US20140036981A1 (en) 2014-02-06
DE60141584D1 (de) 2010-04-29
US20060182169A1 (en) 2006-08-17
PT1307973E (pt) 2010-05-05
ES2341703T3 (es) 2010-06-25
AU2001285426A1 (en) 2002-02-18
US8208519B2 (en) 2012-06-26
CA2789759A1 (en) 2002-02-14
JP4694093B2 (ja) 2011-06-01
US20020114383A1 (en) 2002-08-22
EP2190127B1 (en) 2018-12-26
US7773666B2 (en) 2010-08-10
JP2004506376A (ja) 2004-02-26
ATE461559T1 (de) 2010-04-15
CA2415915A1 (en) 2002-02-14
US20120263216A1 (en) 2012-10-18
EP2190127A2 (en) 2010-05-26
KR20060135967A (ko) 2006-12-29
EP2270997A2 (en) 2011-01-05
EP2267914A3 (en) 2012-09-26
EP1307973B1 (en) 2010-03-17
EP1307973A2 (en) 2003-05-07
EP2270997A3 (en) 2014-06-25
US8743937B2 (en) 2014-06-03
CA2415915C (en) 2012-11-27
US8559489B2 (en) 2013-10-15
KR20030022889A (ko) 2003-03-17
CA2789759C (en) 2016-05-17
US20140254771A1 (en) 2014-09-11
US8903049B2 (en) 2014-12-02
EP2267914A2 (en) 2010-12-29
US20100195708A1 (en) 2010-08-05
KR101021420B1 (ko) 2011-03-14
KR101211871B1 (ko) 2012-12-13
WO2002013405A3 (en) 2003-01-30

Similar Documents

Publication Publication Date Title
DK1307973T3 (da) Systemer og fremgangsmåder til at karakterisere transmissionslinjer i et DSL-miljø med flere bærebølger
AU2009222537B2 (en) Diagnostic methods and systems for multicarrier modems
US7801233B1 (en) Method and system for channel equalization and crosstalk estimation in a multicarrier data transmission system
ATE279063T1 (de) Entzerrer mit ausgleich von gleichspannungsverschiebungen
UA86752C2 (ru) Выявление и демодуляция данных в системах беспроводной связи
MY133724A (en) Method and apparatus for disturbance compensation of a direct conversion receiver in a full duplex transceiver
US7443916B2 (en) Method and apparatus for communication in the presence of impulse noise
EP2254294A3 (en) Method and apparatus for decision feedback equalization
ATE295999T1 (de) Vorrichtung und verfahren zur korrelationzeitauswahl bei rake-empfängern
SE9600966D0 (sv) High speed simulcast system using adaptive compensation
TW200501656A (en) Data detection and demodulation for wireless communication systems
US9065886B2 (en) System and method for the application of an LMS method to updating an echo canceller in a multicarrier transceiver
TW200610285A (en) Joint signal demodulation in a low and high data rate channel environment
EP1441484A3 (en) Reception and equalisation of multicarrier signals
US20050190825A1 (en) Bit-loading in multicarrier communication systems in the presence of an asymmetric, correlated Gaussian noise sources
CN103181092A (zh) Dsl外部噪声降低
CN100534080C (zh) 噪音测量方法和相关的接收数字用户线调制解调器
SE0003763D0 (sv) Föregångarutjämnare med beslutsåterkoppling (PDFE)
CN100571237C (zh) 一种ofdm解调方法
TW200629753A (en) Impulse noise correction
US7260142B2 (en) Dynamic hybrid switching in a wireline modem
FR2875658B1 (fr) Estimation du rapport signal a interference plus bruit en sortie d'un recepteur ofdm-cdma.
DE60226179D1 (de) Rauschenausgeglichene quadratur-amplitudenmodulation-detektion
WO2002087186A3 (en) Channel characterization and rate selection in dsl systems
KR100453496B1 (ko) 초고속 가입자망 전송 시스템 및 이를 위한 상향채널 전력백오프 방법