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    LINE FAULT LOCALISATION
    1.
    发明公开
    LINE FAULT LOCALISATION 审中-公开

    公开(公告)号：EP3357224A1

    公开(公告)日：2018-08-08

    申请号：EP16754511.0

    申请日：2016-08-23

    申请人： British Telecommunications public limited company

    发明人： GEDGE, Richard ,  NEILD, Ian

    IPC分类号： H04M3/08 ,  H04M3/30

    CPC分类号： H04M3/085 ,  H04B3/46 ,  H04M3/08 ,  H04M3/10 ,  H04M3/2209 ,  H04M3/30 ,  H04M3/304 ,  H04M3/306

    摘要： The invention relates to a method of managing a digital subscriber line, in particular for identifying the location of weather related faults. The invention continuously measures the signal to noise (SNR) margin on the DSL line as well as measurements from weather related sensors, such as moisture and wind sensors, which each have an associated geographical location. The SNR margin measures are compared to predetermined conditions based on SNR margin characteristics associated with a population of good lines. If the SNR margin measures fail to meet the predetermined conditions, the SNR measures are also compared to the weather sensor measurements over a day or number of days. If there is a correlation between the SNR margin measures and at least one of the sensors, then location of the fault is identified as the location of the sensor having the strongest correlation with the SNR measures.

    CABLE DAMAGE DETECTION
    2.
    发明授权
    CABLE DAMAGE DETECTION 有权
    ERKENNUNG VONKABELBESCHÄDIGUNG

    公开(公告)号：EP2832081B1

    公开(公告)日：2016-12-28

    申请号：EP13716343.2

    申请日：2013-03-21

    申请人： British Telecommunications PLC

    发明人： KOYABE, Martin Wanyonyi ,  CUI, Zhan

    IPC分类号： H04M3/22 ,  G01R31/04 ,  H04M3/10 ,  H04L12/26 ,  H04M3/08 ,  H04M11/06 ,  H04M3/30

    CPC分类号： H04M3/305 ,  G01R31/04 ,  G08B13/00 ,  H04L43/0811 ,  H04L43/16 ,  H04L43/50 ,  H04M3/08 ,  H04M3/085 ,  H04M3/10 ,  H04M3/2209 ,  H04M11/062

    摘要： A system for monitoring connection status of a cable comprising - a detector connected to the cable, - a processor for receiving from the detector one or more connection status reports about connection of the cable to an access network node, the processor being further configured to cause, upon a received report threshold being reached, a test of connection of the cable to the access network node to be conducted, and - a line test module for testing the connection of the cable to the access network node.

    摘要翻译： 一种用于监测电缆的连接状态的系统，包括 - 连接到所述电缆的检测器， - 用于从所述检测器接收关于所述电缆到接入网络节点的连接的一个或多个连接状态报告的处理器，所述处理器还被配置为引起 在达到接收到的报告阈值时，测试将电缆连接到要进行的接入网络节点，以及 - 线路测试模块，用于测试电缆到接入网络节点的连接。

    METHOD AND ARRANGEMENT FOR LOOP QUALIFICATION IN A DIGITAL SUBSCRIBER LINE (DSL) SYSTEM
    7.
    发明公开
    METHOD AND ARRANGEMENT FOR LOOP QUALIFICATION IN A DIGITAL SUBSCRIBER LINE (DSL) SYSTEM 有权
    方法和系统用于在数字用户线（DSL）系统连接资格

    公开(公告)号：EP2074808A1

    公开(公告)日：2009-07-01

    申请号：EP06844038.7

    申请日：2006-10-20

    申请人： Telefonaktiebolaget LM Ericsson (publ)

    发明人： LINDQVIST, Fredrik ,  RIUS I RIU, Jaume ,  WEYL ALBUQUERQUE COSTA, Joao, Cristostomo ,  DE SOUZA DE SALES JUNIOR, Claudomiro

    IPC分类号： H04M3/30 ,  H04L27/26 ,  H04M11/06

    CPC分类号： H04M11/062 ,  H04M3/085 ,  H04M3/306

    摘要： The present invention relates to a loop qualification unit and a method thereof for determining loop parameters describing a topology of a twisted pair loop, having two ends, for a digital subscriber line system, wherein the loop parameters being represented by a vector comprising a receiving member for receiving a measurement of a SELT parameter measured at one end of said two ends and for receiving a measurement of a DELT loop transfer function measured at said two loop ends. The unit comprises a model generator for generating a model for the SELT parameter based on the loop parameters represented by the vector; a model generator for generating a model for the DELT loop transfer function based on the loop parameters represented by the vector; and a processor for determining the loop parameters represented by the vector by minimizing the diffe ren ce between the model and the measurement of the SELT parameter and by minimizing the difference between the model and the measurement of the DELT loop transfer function, whereby the determined loop parameters are represented by the vector that provides said minimizations.

    DOUBLE-ENDED LINE PROBING (DELP) FOR DSL SYSTEMS
    8.
    发明公开
    DOUBLE-ENDED LINE PROBING (DELP) FOR DSL SYSTEMS 有权
    DOUBLE DIGE相关的测试（GBLP）对于DSL系统

    公开(公告)号：EP1867145A4

    公开(公告)日：2009-04-01

    申请号：EP06740507

    申请日：2006-04-04

    申请人： IKANOS COMMUNICATIONS INC

    发明人： FERDOSI NIMA ,  KAMALI JALIL

    IPC分类号： H04M1/24 ,  H04M3/08 ,  H04M3/22

    CPC分类号： H04M3/085 ,  H04M3/2209 ,  H04M3/306

    摘要： [0057] Double-ended line probing (DELP) techniques are described herein that enable a loop configuration to be identified based on mathematically simple error functions, which are both time-efficient and less sensitive to measurement errors. A DELP algorithm uses readily available data about the channel that is generated prior to the modem operation (e.g., theoretical loop models) and other available data (e.g., that provided by loop diagnostic modules) to estimate the loop configuration including the line length and gauge, as well as the number of bridge taps and their gauges, lengths, and locations.

    Error detection and reporting
    10.
    发明公开
    Error detection and reporting 有权
    Erkennung und Berichten von Fehlern

    公开(公告)号：EP1585300A1

    公开(公告)日：2005-10-12

    申请号：EP05007406.1

    申请日：2005-04-05

    申请人： MCI Inc.

    发明人： DelRegno, Nick ,  Kotria, Scott R. ,  Bencheck, Michael U. ,  Turlington, Matthew W. ,  Hardin, Ross S. ,  Schell, Richard C. ,  Chiu, Howard ,  McDysan, David E. ,  Drake, William

    IPC分类号： H04M3/30 ,  H04L12/26 ,  H04M3/10 ,  H04L12/24

    CPC分类号： H04M3/301 ,  H04M3/085 ,  H04M3/10 ,  H04M3/2209

    摘要： System and method for detecting and reporting an error in communications with customer premise equipment (116). A preferred embodiment comprises monitoring the communications link between an access device (120) and customer premise equipment (116) located on customer premises. If a communications link fails, or some other condition occurs, an error signal is transmitted to the access network (100) to notify downstream network elements of the error condition. In one embodiment, an access device (120) is communicatively coupled to a demarcation device (118) via an Ethernet link. If a loss of link occurs on the Ethernet link, an error signal, such as an alarm indicator signal, is transmitted through the network.

    摘要翻译： 用于检测和报告与客户驻地设备通信中的错误的系统和方法（116）。 优选实施例包括监视访问设备（120）和位于客户驻地的客户驻地设备（116）之间的通信链路。 如果通信链路发生故障或发生其他一些情况，则向接入网络（100）发送错误信号，以向下游网络单元通知错误状况。 在一个实施例中，接入设备（120）经由以太网链路通信地耦合到分界设备（118）。 如果以太网链路发生链路丢失，则通过网络传输报警指示信号等错误信号。