[go: up one dir, main page]

AR084526A1 - Analisis de traza por otdr en sistemas pon - Google Patents

Analisis de traza por otdr en sistemas pon

Info

Publication number
AR084526A1
AR084526A1 ARP110104867A ARP110104867A AR084526A1 AR 084526 A1 AR084526 A1 AR 084526A1 AR P110104867 A ARP110104867 A AR P110104867A AR P110104867 A ARP110104867 A AR P110104867A AR 084526 A1 AR084526 A1 AR 084526A1
Authority
AR
Argentina
Prior art keywords
otdr
measurement
stage
new
pon
Prior art date
Application number
ARP110104867A
Other languages
English (en)
Original Assignee
Ericsson Telefon Ab L M
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 Ericsson Telefon Ab L M filed Critical Ericsson Telefon Ab L M
Publication of AR084526A1 publication Critical patent/AR084526A1/es

Links

Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04BTRANSMISSION
    • H04B10/00Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
    • H04B10/07Arrangements for monitoring or testing transmission systems; Arrangements for fault measurement of transmission systems
    • H04B10/071Arrangements for monitoring or testing transmission systems; Arrangements for fault measurement of transmission systems using a reflected signal, e.g. using optical time domain reflectometers [OTDR]
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01MTESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G01M11/00Testing of optical apparatus; Testing structures by optical methods not otherwise provided for
    • G01M11/30Testing of optical devices, constituted by fibre optics or optical waveguides
    • G01M11/31Testing of optical devices, constituted by fibre optics or optical waveguides with a light emitter and a light receiver being disposed at the same side of a fibre or waveguide end-face, e.g. reflectometers
    • G01M11/3109Reflectometers detecting the back-scattered light in the time-domain, e.g. OTDR
    • G01M11/3136Reflectometers detecting the back-scattered light in the time-domain, e.g. OTDR for testing of multiple fibers

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Optics & Photonics (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • General Physics & Mathematics (AREA)
  • Optical Communication System (AREA)

Abstract

Una unidad de cliente y un método para realizar el análisis de fallo en una red óptica pasiva, PON, utilizando la reflectometría óptica en el dominio del tiempo, OTDR. El método comprende disparar una nueva medición por OTDR, donde se ha hecho una medición de referencia anterior indicando un estado original de la PON. El método además comprende insertar una señal de medición por OTDR dentro de un divisor de múltiples etapas antes de una última etapa divisora del divisor de múltiples etapas, y donde la última etapa divisora es de relación 2:N; y obtener al menos una nueva ubicación del evento basado en la señal de medición por ODTR. Además, el método comprende calcular una magnitud de fallo en una ubicación dada sustrayendo la magnitud de un evento que se obtiene de la nueva medición por OTDR a partir de la medición por OTDR de referencia y tomando en cuenta el número de enlaces caídos conectados a la última etapa divisora en la medición de referencia y la nueva medición. Por lo tanto, se habilita la determinación de la posición y la severidad de las ubicaciones de los fallos.
ARP110104867A 2010-12-22 2011-12-21 Analisis de traza por otdr en sistemas pon AR084526A1 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/SE2010/051455 WO2012087205A1 (en) 2010-12-22 2010-12-22 Otdr trace analysis in pon systems

Publications (1)

Publication Number Publication Date
AR084526A1 true AR084526A1 (es) 2013-05-22

Family

ID=44461821

Family Applications (1)

Application Number Title Priority Date Filing Date
ARP110104867A AR084526A1 (es) 2010-12-22 2011-12-21 Analisis de traza por otdr en sistemas pon

Country Status (4)

Country Link
US (1) US8724102B2 (es)
EP (1) EP2656515B1 (es)
AR (1) AR084526A1 (es)
WO (1) WO2012087205A1 (es)

Families Citing this family (187)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9036991B2 (en) * 2009-10-30 2015-05-19 Hewlett-Packard Development Company, L.P. Optical transceiver having an OTDR mode, and a method of obtaining test data for testing an optical fiber
CN102986150B (zh) 2010-05-27 2017-02-15 爱斯福公司 多采集otdr方法及装置
CN101924590B (zh) * 2010-08-25 2016-04-13 中兴通讯股份有限公司 无源光网络光纤故障的检测系统和方法
AU2011363087B2 (en) 2011-03-21 2015-03-26 Telefonaktiebolaget Lm Ericsson (Publ) Supervision of wavelength division multiplexed optical networks
US20120288273A1 (en) * 2011-05-12 2012-11-15 Alcatel-Lucent Usa, Inc. Intelligent splitter monitor
WO2012169946A1 (en) 2011-06-10 2012-12-13 Telefonaktiebolaget Lm Ericsson (Publ) Pon supervisoion using otdr measurements
CN103782149B (zh) * 2011-06-30 2017-07-18 瑞典爱立信有限公司 Pon系统中的otdr轨迹分析
EP2726837B1 (en) 2011-07-01 2018-09-05 Telefonaktiebolaget LM Ericsson (publ) Device, remote node and methods for pon supervision
US9088838B2 (en) 2011-07-18 2015-07-21 Telefonaktiebolaget L M Ericsson (Publ) OTM functionality in SOA based transceivers
WO2013028110A1 (en) 2011-08-24 2013-02-28 Telefonaktiebolaget Lm Ericsson (Publ) Methods and apparatuses for supervision of optical networks
US9673895B2 (en) 2011-08-24 2017-06-06 Telefonaktiebolaget L M Ericsson (Publ) PON supervision using OTDR measurements
US8693866B1 (en) * 2012-01-20 2014-04-08 Google Inc. Fiber diagnosis system for WDM optical access networks
GB2499386A (en) * 2012-02-10 2013-08-21 United Technologists Europe Ltd OTDR Mapping Method using an optical reflector at a specific customer fibre end to increase the amplitude relative to other reflection events in the trace
TWM439789U (en) * 2012-05-29 2012-10-21 Polarlink Technologies Ltd Detection and test device for inspecting optical fiber loss and individual event return loss of optic fiber line
US8948587B2 (en) 2012-06-27 2015-02-03 Centurylink Intellectual Property Llc Use of dying gasp to locate faults in communications networks
US9219543B2 (en) * 2012-07-11 2015-12-22 Commscope Technologies Llc Monitoring optical decay in fiber connectivity systems
CN102868446B (zh) * 2012-09-20 2015-08-12 索尔思光电(成都)有限公司 一种使用双apd共用升压电路的olt光模块
CA2887950A1 (en) * 2012-10-18 2014-04-24 Ntest, Inc. Passive optical network loss analysis system
US9584218B2 (en) 2012-11-15 2017-02-28 Telefonaktiebolaget Lm Ericsson (Publ) Method and arrangement for monitoring optical transmission lines
US9113347B2 (en) 2012-12-05 2015-08-18 At&T Intellectual Property I, Lp Backhaul link for distributed antenna system
EP2750306A1 (fr) * 2012-12-26 2014-07-02 Alcatel Lucent Procédé de diagnostique de la dégradation d'une liaison optique
CN103973362A (zh) * 2013-02-06 2014-08-06 中兴通讯股份有限公司 设置otdr测试参数集的方法及装置
CN103281122B (zh) * 2013-04-28 2015-10-21 国家电网公司 一种光缆在线监测提高告警准确率的方法
US9525524B2 (en) 2013-05-31 2016-12-20 At&T Intellectual Property I, L.P. Remote distributed antenna system
US9999038B2 (en) 2013-05-31 2018-06-12 At&T Intellectual Property I, L.P. Remote distributed antenna system
EP3005594A1 (en) 2013-06-04 2016-04-13 Telefonaktiebolaget LM Ericsson (publ) Transceiver for use in fibre network
KR20150003602A (ko) * 2013-07-01 2015-01-09 주식회사 케이티 광선로 상태 감시 장치 및 방법
WO2015006623A1 (en) * 2013-07-10 2015-01-15 Neophotonics Corporation Optical network communication system with embedded optical time domain reflectometer and method of operation thereof
CN104301037A (zh) * 2013-07-16 2015-01-21 中兴通讯股份有限公司 一种实现无源光网络光纤故障自动告警的方法及系统
US9621262B1 (en) * 2013-07-24 2017-04-11 Optical Cable Corporation Self-monitoring cable system
EP3059883A4 (en) * 2013-10-18 2017-05-17 Telefonica, S.A. Method, system and device for the supervision of optical fibres
US8897697B1 (en) 2013-11-06 2014-11-25 At&T Intellectual Property I, Lp Millimeter-wave surface-wave communications
US9887770B2 (en) 2014-03-03 2018-02-06 Telefonaktiebolaget Lm Ericsson (Publ) Transceiver and method for monitoring of SCM transmission on fibre cable
US9768833B2 (en) 2014-09-15 2017-09-19 At&T Intellectual Property I, L.P. Method and apparatus for sensing a condition in a transmission medium of electromagnetic waves
US10063280B2 (en) 2014-09-17 2018-08-28 At&T Intellectual Property I, L.P. Monitoring and mitigating conditions in a communication network
US9615269B2 (en) 2014-10-02 2017-04-04 At&T Intellectual Property I, L.P. Method and apparatus that provides fault tolerance in a communication network
US9685992B2 (en) 2014-10-03 2017-06-20 At&T Intellectual Property I, L.P. Circuit panel network and methods thereof
US9503189B2 (en) 2014-10-10 2016-11-22 At&T Intellectual Property I, L.P. Method and apparatus for arranging communication sessions in a communication system
US9762289B2 (en) 2014-10-14 2017-09-12 At&T Intellectual Property I, L.P. Method and apparatus for transmitting or receiving signals in a transportation system
US9973299B2 (en) 2014-10-14 2018-05-15 At&T Intellectual Property I, L.P. Method and apparatus for adjusting a mode of communication in a communication network
US9520945B2 (en) 2014-10-21 2016-12-13 At&T Intellectual Property I, L.P. Apparatus for providing communication services and methods thereof
US9312919B1 (en) 2014-10-21 2016-04-12 At&T Intellectual Property I, Lp Transmission device with impairment compensation and methods for use therewith
US9780834B2 (en) 2014-10-21 2017-10-03 At&T Intellectual Property I, L.P. Method and apparatus for transmitting electromagnetic waves
US9627768B2 (en) 2014-10-21 2017-04-18 At&T Intellectual Property I, L.P. Guided-wave transmission device with non-fundamental mode propagation and methods for use therewith
US9577306B2 (en) 2014-10-21 2017-02-21 At&T Intellectual Property I, L.P. Guided-wave transmission device and methods for use therewith
US9653770B2 (en) 2014-10-21 2017-05-16 At&T Intellectual Property I, L.P. Guided wave coupler, coupling module and methods for use therewith
US9769020B2 (en) 2014-10-21 2017-09-19 At&T Intellectual Property I, L.P. Method and apparatus for responding to events affecting communications in a communication network
CA2966750A1 (en) * 2014-11-04 2016-05-12 Afl Telecommunications Llc Merging technique for otdr traces captured by using different settings
US10009067B2 (en) 2014-12-04 2018-06-26 At&T Intellectual Property I, L.P. Method and apparatus for configuring a communication interface
US9997819B2 (en) 2015-06-09 2018-06-12 At&T Intellectual Property I, L.P. Transmission medium and method for facilitating propagation of electromagnetic waves via a core
US9742462B2 (en) 2014-12-04 2017-08-22 At&T Intellectual Property I, L.P. Transmission medium and communication interfaces and methods for use therewith
US9544006B2 (en) 2014-11-20 2017-01-10 At&T Intellectual Property I, L.P. Transmission device with mode division multiplexing and methods for use therewith
US9954287B2 (en) 2014-11-20 2018-04-24 At&T Intellectual Property I, L.P. Apparatus for converting wireless signals and electromagnetic waves and methods thereof
US10243784B2 (en) 2014-11-20 2019-03-26 At&T Intellectual Property I, L.P. System for generating topology information and methods thereof
US9461706B1 (en) 2015-07-31 2016-10-04 At&T Intellectual Property I, Lp Method and apparatus for exchanging communication signals
US10340573B2 (en) 2016-10-26 2019-07-02 At&T Intellectual Property I, L.P. Launcher with cylindrical coupling device and methods for use therewith
US9800327B2 (en) 2014-11-20 2017-10-24 At&T Intellectual Property I, L.P. Apparatus for controlling operations of a communication device and methods thereof
US9794658B2 (en) * 2014-12-23 2017-10-17 Infinera Corporation Circuit diagnostic manager
US10144036B2 (en) 2015-01-30 2018-12-04 At&T Intellectual Property I, L.P. Method and apparatus for mitigating interference affecting a propagation of electromagnetic waves guided by a transmission medium
US9876570B2 (en) 2015-02-20 2018-01-23 At&T Intellectual Property I, Lp Guided-wave transmission device with non-fundamental mode propagation and methods for use therewith
US9641243B2 (en) 2015-02-23 2017-05-02 Exfo Inc. Safe-mode OTDR method
KR20160112079A (ko) * 2015-03-17 2016-09-28 한국전자통신연구원 광분배망에서의 광선로 검사 방법 및 그에 따른 검사 장치
US9749013B2 (en) 2015-03-17 2017-08-29 At&T Intellectual Property I, L.P. Method and apparatus for reducing attenuation of electromagnetic waves guided by a transmission medium
US10224981B2 (en) 2015-04-24 2019-03-05 At&T Intellectual Property I, Lp Passive electrical coupling device and methods for use therewith
US9705561B2 (en) 2015-04-24 2017-07-11 At&T Intellectual Property I, L.P. Directional coupling device and methods for use therewith
US9948354B2 (en) 2015-04-28 2018-04-17 At&T Intellectual Property I, L.P. Magnetic coupling device with reflective plate and methods for use therewith
US9793954B2 (en) 2015-04-28 2017-10-17 At&T Intellectual Property I, L.P. Magnetic coupling device and methods for use therewith
US9748626B2 (en) 2015-05-14 2017-08-29 At&T Intellectual Property I, L.P. Plurality of cables having different cross-sectional shapes which are bundled together to form a transmission medium
US9871282B2 (en) 2015-05-14 2018-01-16 At&T Intellectual Property I, L.P. At least one transmission medium having a dielectric surface that is covered at least in part by a second dielectric
US9490869B1 (en) 2015-05-14 2016-11-08 At&T Intellectual Property I, L.P. Transmission medium having multiple cores and methods for use therewith
US10650940B2 (en) 2015-05-15 2020-05-12 At&T Intellectual Property I, L.P. Transmission medium having a conductive material and methods for use therewith
US9917341B2 (en) 2015-05-27 2018-03-13 At&T Intellectual Property I, L.P. Apparatus and method for launching electromagnetic waves and for modifying radial dimensions of the propagating electromagnetic waves
US10812174B2 (en) 2015-06-03 2020-10-20 At&T Intellectual Property I, L.P. Client node device and methods for use therewith
US9912381B2 (en) 2015-06-03 2018-03-06 At&T Intellectual Property I, Lp Network termination and methods for use therewith
US10103801B2 (en) 2015-06-03 2018-10-16 At&T Intellectual Property I, L.P. Host node device and methods for use therewith
US9866309B2 (en) 2015-06-03 2018-01-09 At&T Intellectual Property I, Lp Host node device and methods for use therewith
US9913139B2 (en) 2015-06-09 2018-03-06 At&T Intellectual Property I, L.P. Signal fingerprinting for authentication of communicating devices
US9608692B2 (en) 2015-06-11 2017-03-28 At&T Intellectual Property I, L.P. Repeater and methods for use therewith
US9820146B2 (en) 2015-06-12 2017-11-14 At&T Intellectual Property I, L.P. Method and apparatus for authentication and identity management of communicating devices
US9667317B2 (en) 2015-06-15 2017-05-30 At&T Intellectual Property I, L.P. Method and apparatus for providing security using network traffic adjustments
CN106330297B (zh) * 2015-06-18 2020-06-05 中兴通讯股份有限公司 一种检测光纤故障点的方法和装置
US9640850B2 (en) 2015-06-25 2017-05-02 At&T Intellectual Property I, L.P. Methods and apparatus for inducing a non-fundamental wave mode on a transmission medium
US9865911B2 (en) 2015-06-25 2018-01-09 At&T Intellectual Property I, L.P. Waveguide system for slot radiating first electromagnetic waves that are combined into a non-fundamental wave mode second electromagnetic wave on a transmission medium
US9509415B1 (en) 2015-06-25 2016-11-29 At&T Intellectual Property I, L.P. Methods and apparatus for inducing a fundamental wave mode on a transmission medium
US9847566B2 (en) 2015-07-14 2017-12-19 At&T Intellectual Property I, L.P. Method and apparatus for adjusting a field of a signal to mitigate interference
US9853342B2 (en) 2015-07-14 2017-12-26 At&T Intellectual Property I, L.P. Dielectric transmission medium connector and methods for use therewith
US9722318B2 (en) 2015-07-14 2017-08-01 At&T Intellectual Property I, L.P. Method and apparatus for coupling an antenna to a device
US10170840B2 (en) 2015-07-14 2019-01-01 At&T Intellectual Property I, L.P. Apparatus and methods for sending or receiving electromagnetic signals
US10033108B2 (en) 2015-07-14 2018-07-24 At&T Intellectual Property I, L.P. Apparatus and methods for generating an electromagnetic wave having a wave mode that mitigates interference
US10320586B2 (en) 2015-07-14 2019-06-11 At&T Intellectual Property I, L.P. Apparatus and methods for generating non-interfering electromagnetic waves on an insulated transmission medium
US9628116B2 (en) 2015-07-14 2017-04-18 At&T Intellectual Property I, L.P. Apparatus and methods for transmitting wireless signals
US9882257B2 (en) 2015-07-14 2018-01-30 At&T Intellectual Property I, L.P. Method and apparatus for launching a wave mode that mitigates interference
US10205655B2 (en) 2015-07-14 2019-02-12 At&T Intellectual Property I, L.P. Apparatus and methods for communicating utilizing an antenna array and multiple communication paths
US10148016B2 (en) 2015-07-14 2018-12-04 At&T Intellectual Property I, L.P. Apparatus and methods for communicating utilizing an antenna array
US10341142B2 (en) 2015-07-14 2019-07-02 At&T Intellectual Property I, L.P. Apparatus and methods for generating non-interfering electromagnetic waves on an uninsulated conductor
US10044409B2 (en) 2015-07-14 2018-08-07 At&T Intellectual Property I, L.P. Transmission medium and methods for use therewith
US9793951B2 (en) 2015-07-15 2017-10-17 At&T Intellectual Property I, L.P. Method and apparatus for launching a wave mode that mitigates interference
US9608740B2 (en) 2015-07-15 2017-03-28 At&T Intellectual Property I, L.P. Method and apparatus for launching a wave mode that mitigates interference
US10090606B2 (en) 2015-07-15 2018-10-02 At&T Intellectual Property I, L.P. Antenna system with dielectric array and methods for use therewith
US9912027B2 (en) 2015-07-23 2018-03-06 At&T Intellectual Property I, L.P. Method and apparatus for exchanging communication signals
US9749053B2 (en) 2015-07-23 2017-08-29 At&T Intellectual Property I, L.P. Node device, repeater and methods for use therewith
US9871283B2 (en) 2015-07-23 2018-01-16 At&T Intellectual Property I, Lp Transmission medium having a dielectric core comprised of plural members connected by a ball and socket configuration
US9948333B2 (en) 2015-07-23 2018-04-17 At&T Intellectual Property I, L.P. Method and apparatus for wireless communications to mitigate interference
US9735833B2 (en) 2015-07-31 2017-08-15 At&T Intellectual Property I, L.P. Method and apparatus for communications management in a neighborhood network
US9967173B2 (en) 2015-07-31 2018-05-08 At&T Intellectual Property I, L.P. Method and apparatus for authentication and identity management of communicating devices
US9904535B2 (en) 2015-09-14 2018-02-27 At&T Intellectual Property I, L.P. Method and apparatus for distributing software
US10136434B2 (en) 2015-09-16 2018-11-20 At&T Intellectual Property I, L.P. Method and apparatus for use with a radio distributed antenna system having an ultra-wideband control channel
US10009063B2 (en) 2015-09-16 2018-06-26 At&T Intellectual Property I, L.P. Method and apparatus for use with a radio distributed antenna system having an out-of-band reference signal
US10079661B2 (en) 2015-09-16 2018-09-18 At&T Intellectual Property I, L.P. Method and apparatus for use with a radio distributed antenna system having a clock reference
US9769128B2 (en) 2015-09-28 2017-09-19 At&T Intellectual Property I, L.P. Method and apparatus for encryption of communications over a network
US9729197B2 (en) 2015-10-01 2017-08-08 At&T Intellectual Property I, L.P. Method and apparatus for communicating network management traffic over a network
US9876264B2 (en) 2015-10-02 2018-01-23 At&T Intellectual Property I, Lp Communication system, guided wave switch and methods for use therewith
US10355367B2 (en) 2015-10-16 2019-07-16 At&T Intellectual Property I, L.P. Antenna structure for exchanging wireless signals
WO2017195953A1 (ko) * 2016-05-09 2017-11-16 주식회사 인소프트 광선로의 감시 및 운용을 위한 통합관리장치 및 이를 이용한 통합관리방법
CN106059657A (zh) * 2016-05-20 2016-10-26 烽火通信科技股份有限公司 一种集成光时域反射仪的光线路保护系统
US9912419B1 (en) 2016-08-24 2018-03-06 At&T Intellectual Property I, L.P. Method and apparatus for managing a fault in a distributed antenna system
US9860075B1 (en) 2016-08-26 2018-01-02 At&T Intellectual Property I, L.P. Method and communication node for broadband distribution
US10291311B2 (en) 2016-09-09 2019-05-14 At&T Intellectual Property I, L.P. Method and apparatus for mitigating a fault in a distributed antenna system
US11032819B2 (en) 2016-09-15 2021-06-08 At&T Intellectual Property I, L.P. Method and apparatus for use with a radio distributed antenna system having a control channel reference signal
US10135146B2 (en) 2016-10-18 2018-11-20 At&T Intellectual Property I, L.P. Apparatus and methods for launching guided waves via circuits
US10340600B2 (en) 2016-10-18 2019-07-02 At&T Intellectual Property I, L.P. Apparatus and methods for launching guided waves via plural waveguide systems
US10135147B2 (en) 2016-10-18 2018-11-20 At&T Intellectual Property I, L.P. Apparatus and methods for launching guided waves via an antenna
US10374316B2 (en) 2016-10-21 2019-08-06 At&T Intellectual Property I, L.P. System and dielectric antenna with non-uniform dielectric
US9991580B2 (en) 2016-10-21 2018-06-05 At&T Intellectual Property I, L.P. Launcher and coupling system for guided wave mode cancellation
US10811767B2 (en) 2016-10-21 2020-10-20 At&T Intellectual Property I, L.P. System and dielectric antenna with convex dielectric radome
US9876605B1 (en) 2016-10-21 2018-01-23 At&T Intellectual Property I, L.P. Launcher and coupling system to support desired guided wave mode
US10312567B2 (en) 2016-10-26 2019-06-04 At&T Intellectual Property I, L.P. Launcher with planar strip antenna and methods for use therewith
US10291334B2 (en) 2016-11-03 2019-05-14 At&T Intellectual Property I, L.P. System for detecting a fault in a communication system
US10224634B2 (en) 2016-11-03 2019-03-05 At&T Intellectual Property I, L.P. Methods and apparatus for adjusting an operational characteristic of an antenna
US10225025B2 (en) 2016-11-03 2019-03-05 At&T Intellectual Property I, L.P. Method and apparatus for detecting a fault in a communication system
US10498044B2 (en) 2016-11-03 2019-12-03 At&T Intellectual Property I, L.P. Apparatus for configuring a surface of an antenna
US10178445B2 (en) 2016-11-23 2019-01-08 At&T Intellectual Property I, L.P. Methods, devices, and systems for load balancing between a plurality of waveguides
US10340601B2 (en) 2016-11-23 2019-07-02 At&T Intellectual Property I, L.P. Multi-antenna system and methods for use therewith
US10090594B2 (en) 2016-11-23 2018-10-02 At&T Intellectual Property I, L.P. Antenna system having structural configurations for assembly
US10340603B2 (en) 2016-11-23 2019-07-02 At&T Intellectual Property I, L.P. Antenna system having shielded structural configurations for assembly
US10535928B2 (en) 2016-11-23 2020-01-14 At&T Intellectual Property I, L.P. Antenna system and methods for use therewith
US10361489B2 (en) 2016-12-01 2019-07-23 At&T Intellectual Property I, L.P. Dielectric dish antenna system and methods for use therewith
US10305190B2 (en) 2016-12-01 2019-05-28 At&T Intellectual Property I, L.P. Reflecting dielectric antenna system and methods for use therewith
US10020844B2 (en) 2016-12-06 2018-07-10 T&T Intellectual Property I, L.P. Method and apparatus for broadcast communication via guided waves
US10382976B2 (en) 2016-12-06 2019-08-13 At&T Intellectual Property I, L.P. Method and apparatus for managing wireless communications based on communication paths and network device positions
US10135145B2 (en) 2016-12-06 2018-11-20 At&T Intellectual Property I, L.P. Apparatus and methods for generating an electromagnetic wave along a transmission medium
US10326494B2 (en) 2016-12-06 2019-06-18 At&T Intellectual Property I, L.P. Apparatus for measurement de-embedding and methods for use therewith
US10727599B2 (en) 2016-12-06 2020-07-28 At&T Intellectual Property I, L.P. Launcher with slot antenna and methods for use therewith
US10637149B2 (en) 2016-12-06 2020-04-28 At&T Intellectual Property I, L.P. Injection molded dielectric antenna and methods for use therewith
US10819035B2 (en) 2016-12-06 2020-10-27 At&T Intellectual Property I, L.P. Launcher with helical antenna and methods for use therewith
US10439675B2 (en) 2016-12-06 2019-10-08 At&T Intellectual Property I, L.P. Method and apparatus for repeating guided wave communication signals
US10694379B2 (en) 2016-12-06 2020-06-23 At&T Intellectual Property I, L.P. Waveguide system with device-based authentication and methods for use therewith
US10755542B2 (en) 2016-12-06 2020-08-25 At&T Intellectual Property I, L.P. Method and apparatus for surveillance via guided wave communication
US9927517B1 (en) 2016-12-06 2018-03-27 At&T Intellectual Property I, L.P. Apparatus and methods for sensing rainfall
US9893795B1 (en) 2016-12-07 2018-02-13 At&T Intellectual Property I, Lp Method and repeater for broadband distribution
US10168695B2 (en) 2016-12-07 2019-01-01 At&T Intellectual Property I, L.P. Method and apparatus for controlling an unmanned aircraft
US10139820B2 (en) 2016-12-07 2018-11-27 At&T Intellectual Property I, L.P. Method and apparatus for deploying equipment of a communication system
US10243270B2 (en) 2016-12-07 2019-03-26 At&T Intellectual Property I, L.P. Beam adaptive multi-feed dielectric antenna system and methods for use therewith
US10446936B2 (en) 2016-12-07 2019-10-15 At&T Intellectual Property I, L.P. Multi-feed dielectric antenna system and methods for use therewith
US10547348B2 (en) 2016-12-07 2020-01-28 At&T Intellectual Property I, L.P. Method and apparatus for switching transmission mediums in a communication system
US10359749B2 (en) 2016-12-07 2019-07-23 At&T Intellectual Property I, L.P. Method and apparatus for utilities management via guided wave communication
US10389029B2 (en) 2016-12-07 2019-08-20 At&T Intellectual Property I, L.P. Multi-feed dielectric antenna system with core selection and methods for use therewith
US10027397B2 (en) 2016-12-07 2018-07-17 At&T Intellectual Property I, L.P. Distributed antenna system and methods for use therewith
US10326689B2 (en) 2016-12-08 2019-06-18 At&T Intellectual Property I, L.P. Method and system for providing alternative communication paths
US10601494B2 (en) 2016-12-08 2020-03-24 At&T Intellectual Property I, L.P. Dual-band communication device and method for use therewith
US10411356B2 (en) 2016-12-08 2019-09-10 At&T Intellectual Property I, L.P. Apparatus and methods for selectively targeting communication devices with an antenna array
US10530505B2 (en) 2016-12-08 2020-01-07 At&T Intellectual Property I, L.P. Apparatus and methods for launching electromagnetic waves along a transmission medium
US10103422B2 (en) 2016-12-08 2018-10-16 At&T Intellectual Property I, L.P. Method and apparatus for mounting network devices
US10938108B2 (en) 2016-12-08 2021-03-02 At&T Intellectual Property I, L.P. Frequency selective multi-feed dielectric antenna system and methods for use therewith
US10916969B2 (en) 2016-12-08 2021-02-09 At&T Intellectual Property I, L.P. Method and apparatus for providing power using an inductive coupling
US10777873B2 (en) 2016-12-08 2020-09-15 At&T Intellectual Property I, L.P. Method and apparatus for mounting network devices
US10389037B2 (en) 2016-12-08 2019-08-20 At&T Intellectual Property I, L.P. Apparatus and methods for selecting sections of an antenna array and use therewith
US10069535B2 (en) 2016-12-08 2018-09-04 At&T Intellectual Property I, L.P. Apparatus and methods for launching electromagnetic waves having a certain electric field structure
US9911020B1 (en) 2016-12-08 2018-03-06 At&T Intellectual Property I, L.P. Method and apparatus for tracking via a radio frequency identification device
US9998870B1 (en) 2016-12-08 2018-06-12 At&T Intellectual Property I, L.P. Method and apparatus for proximity sensing
US10340983B2 (en) 2016-12-09 2019-07-02 At&T Intellectual Property I, L.P. Method and apparatus for surveying remote sites via guided wave communications
US9838896B1 (en) 2016-12-09 2017-12-05 At&T Intellectual Property I, L.P. Method and apparatus for assessing network coverage
US10264586B2 (en) 2016-12-09 2019-04-16 At&T Mobility Ii Llc Cloud-based packet controller and methods for use therewith
US9973940B1 (en) 2017-02-27 2018-05-15 At&T Intellectual Property I, L.P. Apparatus and methods for dynamic impedance matching of a guided wave launcher
US10298293B2 (en) 2017-03-13 2019-05-21 At&T Intellectual Property I, L.P. Apparatus of communication utilizing wireless network devices
CN109768827B (zh) * 2018-12-26 2020-05-08 东南大学 一种二维光编解码系统的链路状态识别方法
EP3681057B1 (en) * 2019-01-14 2022-05-04 Nokia Solutions and Networks Oy Monitoring signals in a passive optical network
EP3869709B1 (en) * 2020-02-18 2022-11-30 Nokia Solutions and Networks Oy An optical time domain reflectometry (otdr) system for diagnosing a passive optical network (pon)
CN111669221B (zh) * 2020-04-29 2021-09-21 华为技术有限公司 故障定位的方法、装置和系统
US11650128B2 (en) 2020-06-30 2023-05-16 Exfo Inc. Optical fiber recognition using backscattering pattern
US11879802B2 (en) 2020-10-22 2024-01-23 Exfo Inc. Testing optical fiber link continuity using OTDR backscattering patterns
EP3996296A1 (en) 2020-11-05 2022-05-11 Viavi Solutions Inc. Optical time-domain reflectometer (otdr) event detection and light power level measurement-based fiber optic link certification
US11606139B2 (en) 2021-03-08 2023-03-14 At&T Intellectual Property I, L.P. Multi-path, smart optical time-domain reflectometer
CN115133982A (zh) * 2021-03-26 2022-09-30 华为技术有限公司 分光装置、分光系统、无源光网络和光纤故障检测方法
US11923893B2 (en) 2021-07-19 2024-03-05 At&T Intellectual Property I, L.P. Port-identified optical signal splitter
CN116192245A (zh) * 2022-12-27 2023-05-30 湖北华网控股集团有限公司 基于pon网络的故障诊断方法、系统、设备及存储介质
US12028108B1 (en) * 2024-02-14 2024-07-02 Frontier Communications Holdings, Llc Network anomaly detection based on customers light level signal

Family Cites Families (29)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB9202564D0 (en) * 1992-02-07 1992-03-25 Marconi Gec Ltd Optical signal transmission network
JP3292982B2 (ja) * 1997-10-09 2002-06-17 アンリツ株式会社 光ファイバ特性評価装置及びプログラムを記録した媒体
JP4055306B2 (ja) 1999-11-08 2008-03-05 富士通株式会社 伝送路の障害検出装置及び方法
US6396573B1 (en) 2000-02-17 2002-05-28 Fitel U.S.A. Corp. System and method for optically testing broadcasting systems
US6396575B1 (en) 2000-05-31 2002-05-28 Lucent Technologies Inc. Test and measurement system for detecting and monitoring faults and losses in passive optical networks (PONs)
EP1624593A1 (en) 2004-08-05 2006-02-08 Alcatel Optical distribution network monitoring method and system
KR100687710B1 (ko) 2004-11-20 2007-02-27 한국전자통신연구원 수동형 광가입자망 시스템에서의 광선로 감시 방법 및 장치
ATE498954T1 (de) 2004-12-17 2011-03-15 British Telecomm Netzwerkbeurteilung
US7756418B2 (en) * 2005-03-07 2010-07-13 Anritsu Instruments Company Passive optical network loss test apparatus and method of use thereof
CN101860398B (zh) * 2006-02-03 2013-02-20 株式会社藤仓 光线路监视装置和光线路监视方法
US7715718B2 (en) * 2006-08-01 2010-05-11 Alcatel Lucent Passive optical network optical time-domain reflectometry
TWI350071B (en) 2006-09-11 2011-10-01 Univ Nat Taiwan Science Tech Detection system for identifying faults in a passive optical network
DE602007004951D1 (de) * 2007-04-26 2010-04-08 Alcatel Lucent Optisches Netzwerk, Überwachungseinheit und Überwachungsverfahren
EP1986350B1 (en) 2007-04-26 2011-02-23 Alcatel Lucent Monitoring unit, optical network, and operating method for the optical network
US7684702B2 (en) 2007-05-21 2010-03-23 Inventec Multimedia & Telecom Corporation Optical link monitoring system and method for passive optical network
ATE506771T1 (de) * 2008-02-04 2011-05-15 Alcatel Lucent Verfahren zur koordination von messungen und kalibrierungen in einem passiven optischen netzwerk
EP3282242B1 (en) * 2008-05-09 2019-10-23 AFL Telecommunications LLC Optical time-domain reflectometer
WO2009147963A1 (ja) * 2008-06-02 2009-12-10 住友電気工業株式会社 光線路監視装置および光線路監視システム
US8090258B2 (en) * 2008-09-19 2012-01-03 Tellabs Petaluma, Inc. Method and apparatus for correcting faults in a passive optical network
GB0823688D0 (en) * 2008-12-31 2009-02-04 Tyco Electronics Raychem Nv Unidirectional absolute optical attenuation measurement with OTDR
EP2209226B1 (en) * 2009-01-19 2013-07-24 Nokia Siemens Networks OY Method and device for signal processing in an optical network unit
WO2010126427A1 (en) * 2009-04-30 2010-11-04 Telefonaktiebolaget Lm Ericsson (Publ) Method and apparatus for fault discovery in a passive optical network (pon)
JP5493571B2 (ja) * 2009-08-06 2014-05-14 住友電気工業株式会社 Otdr波形判定方法
CN102244539B (zh) * 2010-05-11 2014-09-17 华为技术有限公司 分支光纤检测方法及系统、无源光网络和分光器
IL206723A0 (en) * 2010-06-30 2010-12-30 Eci Telecom Ltd Technology for fault allocation in passive optical networks (pon)
CN103782149B (zh) * 2011-06-30 2017-07-18 瑞典爱立信有限公司 Pon系统中的otdr轨迹分析
US9673895B2 (en) * 2011-08-24 2017-06-06 Telefonaktiebolaget L M Ericsson (Publ) PON supervision using OTDR measurements
WO2013028110A1 (en) * 2011-08-24 2013-02-28 Telefonaktiebolaget Lm Ericsson (Publ) Methods and apparatuses for supervision of optical networks
EP2847896B1 (en) * 2012-05-07 2019-01-23 Telefonaktiebolaget LM Ericsson (publ) Monitoring of a pon

Also Published As

Publication number Publication date
WO2012087205A1 (en) 2012-06-28
US20120163800A1 (en) 2012-06-28
EP2656515A1 (en) 2013-10-30
US8724102B2 (en) 2014-05-13
EP2656515B1 (en) 2015-02-18

Similar Documents

Publication Publication Date Title
AR084526A1 (es) Analisis de traza por otdr en sistemas pon
AR076503A1 (es) Metodo y aparato para el descubrimiento de fallas en una red optica pasiva (pon)
AR087633A1 (es) Metodo y dispositivo de deteccion de fallas para una red de distribucion optica y sistema de red optica
MX2022004841A (es) Metodo de deteccion de puerto, dispositivo de red optica y sistema de red optica pasiva.
BR112016002377A2 (pt) sistema de monitoramento de uma instalação de elevador
MX364088B (es) Método y aparato para detección óptica de bio-contaminantes.
CL2018003241A1 (es) Monitoreo de máquina
WO2013014531A3 (en) Techniques for detecting optical faults in passive optical networks
CO2019009510A2 (es) Medición de temperatura con interferometría que combina la retrodispersión de rayleigh y de raman
CH706827A8 (de) Kriechlebensdauermanagementsystem für eine Turbine und Verfahren zum Betreiben derselben.
BR112014017289A8 (pt) método para analisar uma causa de falha de enlace, método e aparelho de otimização de rede
WO2013002692A1 (en) Otdr trace analysis in pon systems
WO2011147030A8 (en) Multiple-acquisition otdr method and device
AR091573A1 (es) Metodos y aparato para utilizar datos de vibracion para determinar una condicion de un dispositivo de control de proceso
AR088653A1 (es) Metodo, sistema y medio para proporcionar controles de verificacion de actualizaciones
MX2018003401A (es) Sistema de detección de fallas del diodo emisor de luz para un vehículo.
AR085524A1 (es) Sistema para la certificacion de una red optica pasiva y para la deteccion de problemas y averias en los ultimos tramos de fibra
BR112015025214A2 (pt) Dispositivo e método para monitoramento de link de fibra óptica
ATE534213T1 (de) Fehleranalyse in virtuellen privaten netzwerken
GB201202347D0 (en) OTDR mapping method
MX2014001635A (es) Sistema de administracion de etiquetas triage y telefono inteligente, y metodo de administracion de etiquetas triage.
EP2720396A3 (en) Optical transmission system, method of testing optical transmission system, and program of testing optical transmission system
MX2016009372A (es) Metodos, nodos de red y dispositivos inalambricos para la administracion del comportamiento operativo de dispositivos inalambricos tras espacios de medicion.
MX377181B (es) Camara de sangre autocalibradora.
MX2018013672A (es) Dispositivo de monitoreo, metodo para monitorear un dispositivo de destino y programa.

Legal Events

Date Code Title Description
FG Grant, registration
FD Application declared void or lapsed, e.g., due to non-payment of fee