AU2001259084A1 - Sliced bandwidth distortion prediction - Google Patents

Sliced bandwidth distortion prediction

Info

Publication number
AU2001259084A1
AU2001259084A1 AU2001259084A AU5908401A AU2001259084A1 AU 2001259084 A1 AU2001259084 A1 AU 2001259084A1 AU 2001259084 A AU2001259084 A AU 2001259084A AU 5908401 A AU5908401 A AU 5908401A AU 2001259084 A1 AU2001259084 A1 AU 2001259084A1
Authority
AU
Australia
Prior art keywords
test signals
received test
communications medium
approximating
estimating
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.)
Abandoned
Application number
AU2001259084A
Inventor
Michael J. Cooper
Patrick D. Smith
Robert G. Uskali
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.)
Motorola Solutions Inc
Original Assignee
Motorola 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 Motorola Inc filed Critical Motorola Inc
Publication of AU2001259084A1 publication Critical patent/AU2001259084A1/en
Abandoned legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/005—Control of transmission; Equalising
    • 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
    • H04L25/0212—Channel estimation of impulse response
    • 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
    • H04L1/0015—Systems modifying transmission characteristics according to link quality, e.g. power backoff characterised by the adaptation strategy
    • 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
    • H04L1/242—Testing correct operation by comparing a transmitted test signal with a locally generated replica
    • 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
    • H04L1/0003—Systems modifying transmission characteristics according to link quality, e.g. power backoff by adapting the transmission rate by switching between different modulation schemes
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W24/00—Supervisory, monitoring or testing arrangements
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W24/00—Supervisory, monitoring or testing arrangements
    • H04W24/06—Testing, supervising or monitoring using simulated traffic

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Power Engineering (AREA)
  • Quality & Reliability (AREA)
  • Monitoring And Testing Of Transmission In General (AREA)
  • Steroid Compounds (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)

Abstract

A method, and apparatus for performing the method, the method consists of the steps of: estimating a time when a dominant channel distortion occurs for each of a plurality of received test signals, wherein each of the plurality of received test signals occupies a different position in frequency in a communications medium having a given bandwidth; determining a differential group delay for the times estimated for each of the plurality of received test signals; and approximating a phase distortion of the communications medium as the differential group delay. In a variation, the method further consists of the steps of: estimating a power of each of the plurality of received test signals; determining an amplitude ripple by evaluating the power of each of the plurality of received test signals; and approximating an amplitude distortion of the communications medium as the amplitude ripple.
AU2001259084A 2000-05-15 2001-04-17 Sliced bandwidth distortion prediction Abandoned AU2001259084A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US09571068 2000-05-15
US09/571,068 US6389068B1 (en) 2000-05-15 2000-05-15 Sliced bandwidth distortion prediction
PCT/US2001/012546 WO2001089130A2 (en) 2000-05-15 2001-04-17 Sliced bandwidth distortion prediction

Publications (1)

Publication Number Publication Date
AU2001259084A1 true AU2001259084A1 (en) 2001-11-26

Family

ID=24282205

Family Applications (1)

Application Number Title Priority Date Filing Date
AU2001259084A Abandoned AU2001259084A1 (en) 2000-05-15 2001-04-17 Sliced bandwidth distortion prediction

Country Status (9)

Country Link
US (1) US6389068B1 (en)
EP (1) EP1290810B1 (en)
KR (1) KR20030003735A (en)
CN (1) CN1432220A (en)
AT (1) ATE504119T1 (en)
AU (1) AU2001259084A1 (en)
CA (1) CA2408615C (en)
DE (1) DE60144326D1 (en)
WO (1) WO2001089130A2 (en)

Families Citing this family (42)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6775840B1 (en) 1997-12-19 2004-08-10 Cisco Technology, Inc. Method and apparatus for using a spectrum analyzer for locating ingress noise gaps
US6574797B1 (en) * 1999-01-08 2003-06-03 Cisco Technology, Inc. Method and apparatus for locating a cleaner bandwidth in a frequency channel for data transmission
US7420986B1 (en) * 1999-11-02 2008-09-02 Broadcom Corporation Method and apparatus for the detection and classification of collisions on a shared RF network
US7016401B1 (en) 1999-12-22 2006-03-21 Motorola, Inc Method and apparatus for automated correlation of digital modulation impairment
US6731605B1 (en) * 2000-06-19 2004-05-04 Sharp Laboratories Of America, Inc. Prioritized optimal server side bandwidth allocation in a multimedia session with push and pull sources
US7490275B2 (en) 2001-02-02 2009-02-10 Rambus Inc. Method and apparatus for evaluating and optimizing a signaling system
US7104534B2 (en) 2001-06-08 2006-09-12 Broadcom Corporation System and method for detecting collisions in a shared communications medium
DE102005037880A1 (en) * 2005-05-19 2006-11-23 Rohde & Schwarz Gmbh & Co. Kg Determination of the amplitude and phase of the output signal in a mobile phone to improve signal to noise
US9088355B2 (en) * 2006-03-24 2015-07-21 Arris Technology, Inc. Method and apparatus for determining the dynamic range of an optical link in an HFC network
US8594118B2 (en) * 2006-03-24 2013-11-26 General Instrument Corporation Method and apparatus for configuring logical channels in a network
US8861597B2 (en) * 2006-09-18 2014-10-14 Sharp Laboratories Of America, Inc. Distributed channel time allocation for video streaming over wireless networks
US7876697B2 (en) * 2006-10-26 2011-01-25 General Instrument Corporation Method and apparatus for characterizing modulation schemes in an HFC network
EP2903318B1 (en) * 2006-11-10 2017-10-18 Fujitsu Limited Wireless communication system and wireless terminal device
US8537972B2 (en) * 2006-12-07 2013-09-17 General Instrument Corporation Method and apparatus for determining micro-reflections in a network
JP4947353B2 (en) * 2006-12-26 2012-06-06 ソニー株式会社 Signal processing apparatus, signal processing method, and program
WO2010048982A1 (en) * 2008-10-27 2010-05-06 Telefonaktiebolaget Lm Ericsson (Publ) Method and apparatus for determining a signal transfer characteristic along a light path in an optical network
US8516532B2 (en) * 2009-07-28 2013-08-20 Motorola Mobility Llc IP video delivery using flexible channel bonding
US8526485B2 (en) * 2009-09-23 2013-09-03 General Instrument Corporation Using equalization coefficients of end devices in a cable television network to determine and diagnose impairments in upstream channels
US8488658B1 (en) * 2010-09-17 2013-07-16 Rockwell Collins, Inc. Transmitter linearization technique
US8654640B2 (en) 2010-12-08 2014-02-18 General Instrument Corporation System and method for IP video delivery using distributed flexible channel bonding
US8937992B2 (en) 2011-08-30 2015-01-20 General Instrument Corporation Method and apparatus for updating equalization coefficients of adaptive pre-equalizers
US8576705B2 (en) 2011-11-18 2013-11-05 General Instrument Corporation Upstream channel bonding partial service using spectrum management
US9113181B2 (en) 2011-12-13 2015-08-18 Arris Technology, Inc. Dynamic channel bonding partial service triggering
US8868736B2 (en) 2012-04-27 2014-10-21 Motorola Mobility Llc Estimating a severity level of a network fault
US8867371B2 (en) 2012-04-27 2014-10-21 Motorola Mobility Llc Estimating physical locations of network faults
US8837302B2 (en) 2012-04-27 2014-09-16 Motorola Mobility Llc Mapping a network fault
US9003460B2 (en) 2012-04-27 2015-04-07 Google Technology Holdings LLC Network monitoring with estimation of network path to network element location
US9065731B2 (en) 2012-05-01 2015-06-23 Arris Technology, Inc. Ensure upstream channel quality measurement stability in an upstream channel bonding system using T4 timeout multiplier
US9136943B2 (en) 2012-07-30 2015-09-15 Arris Technology, Inc. Method of characterizing impairments detected by equalization on a channel of a network
US9137164B2 (en) 2012-11-15 2015-09-15 Arris Technology, Inc. Upstream receiver integrity assessment for modem registration
US9203639B2 (en) 2012-12-27 2015-12-01 Arris Technology, Inc. Dynamic load balancing under partial service conditions
US9197886B2 (en) 2013-03-13 2015-11-24 Arris Enterprises, Inc. Detecting plant degradation using peer-comparison
US9025469B2 (en) 2013-03-15 2015-05-05 Arris Technology, Inc. Method for estimating cable plant topology
US9042236B2 (en) 2013-03-15 2015-05-26 Arris Technology, Inc. Method using equalization data to determine defects in a cable plant
US10477199B2 (en) 2013-03-15 2019-11-12 Arris Enterprises Llc Method for identifying and prioritizing fault location in a cable plant
JP6255917B2 (en) * 2013-11-07 2018-01-10 富士通株式会社 Wireless device and wireless access system
RU2615012C2 (en) * 2014-01-16 2017-04-03 ООО "Топкон Позишионинг Системс" Ways of modeling multipath signals of global navigation satellite systems using test benches and devices for implementing test methods
US9596041B2 (en) * 2014-07-28 2017-03-14 Broadcom Corporation Noise localization within cable based communication systems
WO2017112903A1 (en) * 2015-12-23 2017-06-29 Ascentia Imaging, Inc. Localization system and associated method
CN106878208B (en) * 2015-12-11 2020-07-31 富士通株式会社 Apparatus for measuring filter characteristic, pre-equalizer, and optical communication device
CN117837113A (en) * 2021-08-26 2024-04-05 西门子工业软件有限公司 Method for verifying data integrity of tested device
US20230090396A1 (en) * 2021-09-17 2023-03-23 Comcast Cable Communications, Llc Network Management for Band Splits

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3864632A (en) * 1973-10-01 1975-02-04 Rockwell International Corp Fast Equalization System
GB1429618A (en) * 1974-06-03 1976-03-24 Hewlett Packard Ltd Circuit arrangement for the measuring of group delay and/or attenuation distortions
US4481645A (en) * 1982-12-29 1984-11-06 At&T Bell Laboratories Linear distortion canceller circuit
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
US5825829A (en) * 1995-06-30 1998-10-20 Scientific-Atlanta, Inc. Modulator for a broadband communications system
US5901185A (en) * 1996-04-15 1999-05-04 Ericsson Inc. Systems and methods for data-augmented, pilot-symbol-assisted radiotelephone communications
US5838740A (en) * 1996-04-17 1998-11-17 Motorola, Inc. Crosspole interference canceling receiver for signals with unrelated baud rates
US5943604A (en) * 1997-10-31 1999-08-24 Cisco Technology, Inc. Echo device method for locating upstream ingress noise gaps at cable television head ends
US6144696A (en) * 1997-12-31 2000-11-07 At&T Corp. Spread spectrum bit allocation algorithm
US6246717B1 (en) * 1998-11-03 2001-06-12 Tektronix, Inc. Measurement test set and method for in-service measurements of phase noise
US6212229B1 (en) * 1998-12-16 2001-04-03 General Dynamics Government Systems Corporation Adaptive pre-emphasis technique

Also Published As

Publication number Publication date
WO2001089130A2 (en) 2001-11-22
CA2408615A1 (en) 2001-11-22
KR20030003735A (en) 2003-01-10
EP1290810A2 (en) 2003-03-12
WO2001089130A3 (en) 2002-03-14
CN1432220A (en) 2003-07-23
CA2408615C (en) 2004-09-28
EP1290810A4 (en) 2009-06-17
EP1290810B1 (en) 2011-03-30
DE60144326D1 (en) 2011-05-12
US6389068B1 (en) 2002-05-14
ATE504119T1 (en) 2011-04-15

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