IL134793A0 - Method and arrangement to estimate transmission channel characteristics - Google Patents

Method and arrangement to estimate transmission channel characteristics

Info

Publication number
IL134793A0
IL134793A0 IL13479300A IL13479300A IL134793A0 IL 134793 A0 IL134793 A0 IL 134793A0 IL 13479300 A IL13479300 A IL 13479300A IL 13479300 A IL13479300 A IL 13479300A IL 134793 A0 IL134793 A0 IL 134793A0
Authority
IL
Israel
Prior art keywords
arrangement
transmission channel
channel characteristics
estimate transmission
estimate
Prior art date
Application number
IL13479300A
Other languages
English (en)
Original Assignee
Cit Alcatel
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 Cit Alcatel filed Critical Cit Alcatel
Publication of IL134793A0 publication Critical patent/IL134793A0/xx

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B3/00—Line transmission systems
    • H04B3/02—Details
    • H04B3/46—Monitoring; Testing
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
    • G01R31/28—Testing of electronic circuits, e.g. by signal tracer
    • G01R31/317—Testing of digital circuits
    • G01R31/31712—Input or output aspects
    • G01R31/31717—Interconnect testing
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B17/00—Monitoring; Testing
    • H04B17/20—Monitoring; Testing of receivers
    • H04B17/24—Monitoring; Testing of receivers with feedback of measurements to the transmitter
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B17/00—Monitoring; Testing
    • H04B17/30—Monitoring; Testing of propagation channels
    • H04B17/309—Measuring or estimating channel quality parameters
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B17/00—Monitoring; Testing
    • H04B17/30—Monitoring; Testing of propagation channels
    • H04B17/391—Modelling the propagation channel
    • H04B17/3912—Simulation models, e.g. distribution of spectral power density or received signal strength indicator [RSSI] for a given geographic region
    • 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
    • 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
    • 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
    • H04L25/03—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
    • H04L2025/03777—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
    • 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
IL13479300A 1999-03-31 2000-02-29 Method and arrangement to estimate transmission channel characteristics IL134793A0 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP99400793A EP1041731B1 (de) 1999-03-31 1999-03-31 Verfahren und Anordnung zur Schätzung der Eigenschaften eines Übertragungskanals

Publications (1)

Publication Number Publication Date
IL134793A0 true IL134793A0 (en) 2001-04-30

Family

ID=8241937

Family Applications (1)

Application Number Title Priority Date Filing Date
IL13479300A IL134793A0 (en) 1999-03-31 2000-02-29 Method and arrangement to estimate transmission channel characteristics

Country Status (10)

Country Link
US (3) US6606719B1 (de)
EP (2) EP1041731B1 (de)
JP (1) JP2000332662A (de)
CN (2) CN1536862A (de)
AU (1) AU1957200A (de)
CA (1) CA2300398A1 (de)
DE (2) DE69931889T2 (de)
ES (2) ES2297817T3 (de)
IL (1) IL134793A0 (de)
SG (1) SG97857A1 (de)

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* Cited by examiner, † Cited by third party
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ES2297817T3 (es) * 1999-03-31 2008-05-01 Alcatel Lucent Metodo y disposicion para estimar las caracteristicas de un canal de transmision.
ATE332593T1 (de) 2000-01-07 2006-07-15 Aware Inc Verfahren und vorrichtung zur bestimmung der leitungslänge und der brückenabgrifflange von in einer übertragunsleitung
US6658052B2 (en) 2000-01-07 2003-12-02 Aware, Inc. Systems and methods for establishing a diagnostic transmission mode and communicating over the same
EP2267914A3 (de) 2000-01-07 2012-09-26 Aware, Inc. Verfahren und Vorrichtung zur Bestimmung der Leitungslänge und der Brückenabgrifflänge in einer Übertragungsleitung
ATE357802T1 (de) 2000-04-18 2007-04-15 Aware Inc Datenzuweisung mit änderbaren signal- rauschabstand
FR2820908B1 (fr) * 2001-02-15 2004-06-25 Sagem Modem adaptatif comportant une chaine de reception de signaux de symboles numeriques
US6829330B2 (en) 2001-04-26 2004-12-07 Aware, Inc. Systems and methods for loop characterization from double-ended measurements
AU2002339858A1 (en) 2001-08-31 2003-03-18 Adaptive Networks, Inc. Communicating data using wideband communications
US7106833B2 (en) * 2002-11-19 2006-09-12 Telcordia Technologies, Inc. Automated system and method for management of digital subscriber lines
FR2861928B1 (fr) * 2003-10-31 2007-02-02 Wavecom Procede de transmission d'une estimation d'au moins un canal de propagation d'un recepteur vers un emetteur, emetteur et recepteur correspondants
US7302379B2 (en) * 2003-12-07 2007-11-27 Adaptive Spectrum And Signal Alignment, Inc. DSL system estimation and parameter recommendation
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
US7924736B2 (en) * 2005-07-10 2011-04-12 Adaptive Spectrum And Signal Alignment, Inc. DSL system estimation
FR2861927B1 (fr) * 2004-12-07 2006-05-05 Wavecom Procede de transmission d'une estimation d'au moins un canal de propagation d'un recepteur vers un emetteur, emetteur et recepteur correspondants
US7839775B2 (en) * 2005-03-15 2010-11-23 Cornell Research Foundation, Inc. Methods and systems for channel sensing multiple access communications with multipacket reception
US7623630B2 (en) * 2005-04-08 2009-11-24 Ikanos Communications, Inc. Double-ended line probing (DELP) for DSL systems
US20070253443A1 (en) * 2006-04-27 2007-11-01 Sbc Knowledge Ventures L.P. Data services over G.SHDSL transport infrastructure
US7881403B2 (en) * 2006-10-10 2011-02-01 Futurewei Technologies, Inc. System for realizing emergency rate adjustment
EP2119064A4 (de) * 2007-01-10 2012-09-19 Ericsson Telefon Ab L M Verfahren zum klassifizieren von funkkanälen
FI121980B (fi) * 2007-02-16 2011-06-30 Voyantic Oy Menetelmä radiolinkin karakterisoimiseksi
US8078928B2 (en) * 2007-10-12 2011-12-13 Oracle America, Inc. System and method for verifying the transmit path of an input/output component
CN101562487B (zh) * 2008-04-18 2013-09-11 华为技术有限公司 频谱优化方法、装置及数字用户线系统
CN101572569B (zh) * 2008-05-04 2013-01-23 华为技术有限公司 一种线路拓扑管理方法、系统及相关装置
CN101277129A (zh) * 2008-05-26 2008-10-01 杭州华三通信技术有限公司 基带epcn系统中下行通道的衰减检测方法和设备
US8352577B2 (en) * 2008-07-22 2013-01-08 Lockheed Martin Corporation Method and apparatus for updating information on an embedded system
CN102624578A (zh) * 2011-11-28 2012-08-01 江苏奇异点网络有限公司 支持局域网离线的计算机硬件信息自适应监测方法

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US4105905A (en) * 1975-01-08 1978-08-08 General Electric Company Auxiliary cooling device
US4105995A (en) 1976-06-16 1978-08-08 Hewlett-Packard Company Digitally controlled transmission impairment measuring apparatus
US4512034A (en) * 1983-07-11 1985-04-16 At&T Bell Laboratories Technique for digital radio space diversity combining
US4995057A (en) * 1988-11-02 1991-02-19 At&T Bell Laboratories Technique for achieving the theoretical coding gain of digital signals incorporating error correction
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GB2298338B (en) * 1995-02-15 1999-09-29 Motorola Ltd A method for reverse channel sounding in a communications system
US5812786A (en) * 1995-06-21 1998-09-22 Bell Atlantic Network Services, Inc. Variable rate and variable mode transmission system
EP0923821B1 (de) * 1996-09-02 2003-09-03 STMicroelectronics N.V. Verbesserungen bei, oder in bezug auf mehrträgerübertragungssysteme
US5933421A (en) * 1997-02-06 1999-08-03 At&T Wireless Services Inc. Method for frequency division duplex communications
US6873652B1 (en) * 1998-04-01 2005-03-29 Panasonic Communications Co., Ltd. Activation of multiple xDSL modems with implicit channel probe
ES2297817T3 (es) * 1999-03-31 2008-05-01 Alcatel Lucent Metodo y disposicion para estimar las caracteristicas de un canal de transmision.
US6473871B1 (en) * 1999-08-31 2002-10-29 Sun Microsystems, Inc. Method and apparatus for HASS testing of busses under programmable control
US6685232B2 (en) * 2001-09-06 2004-02-03 Franklin Fastener Company Banjo clip for flange head flow bolt

Also Published As

Publication number Publication date
CN1272006A (zh) 2000-11-01
CN1536862A (zh) 2004-10-13
DE69938070D1 (de) 2008-03-13
US20030193902A1 (en) 2003-10-16
US6606719B1 (en) 2003-08-12
US7653843B2 (en) 2010-01-26
US20070288806A1 (en) 2007-12-13
CN1171403C (zh) 2004-10-13
ES2262295T3 (es) 2006-11-16
EP1041731A1 (de) 2000-10-04
SG97857A1 (en) 2003-08-20
DE69931889D1 (de) 2006-07-27
EP1041731B1 (de) 2006-06-14
EP1699143A3 (de) 2007-05-23
ES2297817T3 (es) 2008-05-01
DE69938070T2 (de) 2009-01-15
EP1699143A2 (de) 2006-09-06
AU1957200A (en) 2000-10-05
EP1699143B1 (de) 2008-01-23
US7216268B2 (en) 2007-05-08
CA2300398A1 (en) 2000-09-30
JP2000332662A (ja) 2000-11-30
DE69931889T2 (de) 2007-04-05

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