Alcatel Lucent

Nokia Solutions and Networks Oy

Benoît Drooghaag

Philippe Dierickx

Issam Wahibi

Nicolas Dupuis

Xavier Dardenne

Olivier Delaby

Arnaud Bertrand

Martin Dorme

A method for locating an impairment within a telecommunication line may include determining measurement data related to the telecommunication line and estimating a location of the impairment depending on the measurement data. The measurement data includes crosstalk data including at least one transfer function element of a crosstalk matrix. The transfer function element characterizes a crosstalk transfer function from the telecommunication line towards the at least one further telecommunication line, and the method includes detecting oscillations in the crosstalk transfer function.

Method and device for locating an impairment within a telecommunication line

The present invention refers to a method and device for detecting a bridged tap within a telecommunication line. In order to reliably detect bridged taps of different types, in particular wire pair bridged taps and single wire bridged taps, and/or to determine a type of each detected bridged tap the method includes determining first transfer function data that characterize an actual transfer function of the telecommunication line; detecting the bridged tap depending on the first transfer function data; simulating the telecommunication line based on a result of the detecting; and identifying the type of the bridged tap by comparing results of the simulating with the first transfer function data.

Method and device for detecting a bridged tap within a telecommunication line

In one embodiment, the method includes determining at least one value that depends on an attenuation of a signal transmitted over a telecommunication line to a DSL modem or received over the telecommunication line from the DSL modem; detecting depending on the value that the DSL modem is coupled with the telecommunication line via a DSL splitter in such a way that the DSL modem is connected to a different connector of the DSL splitter than a modem connector of the DSL splitter, which modem connector is intended for being connected with the DSL modem; determining a loop length value of the telecommunication line; and determining a threshold depending on the loop length value, wherein the detecting is based on comparing the threshold with the value.

Method and device for testing subscriber premises equipment

In a method and a device for identifying crosstalk from a disturbing telecommunication line to a victim telecommunication line of a communication network, the identifying depends on quiet line noise measurement data related to the victim telecommunication line. In order to provide such a method and associated device that allows for detecting abnormally high crosstalk caused by high bit rate telecommunication lines running in parallel to a section of the victim telecommunication line, the method includes estimating a coupling length depending on the quiet line noise measurement data; and detecting depending on the coupling length and a physical length of the victim telecommunication line that the crosstalk is caused by the disturbing telecommunication line extending in parallel to a section of the victim telecommunication line.

Method and device for identifying crosstalk

The present invention refers to a method () for identification () of an impairment () within a telecommunication line (), the method () comprising determining () first measurement data (Hlog) that characterize a transfer function of the telecommunication line (). In order to provide a method () for identification of an impairment () within the telecommunication line () that can be applied on the telecommunication line () without interrupting the operation of the line () and that can easily be implemented in connection with existing system such as existing DSL systems, it is suggested that the method () further comprise determining () at least one periodicity interval (&#x394;f, &#x394;f) of oscillations of the transfer function and that the impairment () be identified depending on said determining ().

Method and device for identification of an impairment within a telecommunication line

A device for detecting absence of a Plain Old Telephony Service or POTS splitter on a Digital Subscriber Line, includes a device for collecting channel transfer function data or the Digital Subscriber Line, and a device for detecting a single hole in the channel transfer function data.

Device and method for detecting absence of a POTS splitter in a digital subscriber line

A diagnostic engine for remotely analyzing a fault of a telecommunication line includes a first measurement module adapted to be coupled to a termination of the line and adapted to measure first line characteristics according to a Metallic Line Testing measurement technique; a fault detection module to detect, based upon the first line characteristics, a fault on the line and to trigger thereupon a determining module; and a showtime module to be coupled to the termination to determine whether the line is in showtime mode and to inform thereupon the determining module accordingly. The determining module is adapted to trigger, in the event when the line being in showtime mode, activation of a second measurement module. The second measurement module is adapted to be coupled to the termination and to measure second line characteristics according to a Dual Ended Line Testing measurement technique. A combining module is coupled to the first and the second measurement module and adapted to combine the measured first and second line characteristics of the line and to analyze therewith further features of the fault.

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Ophain-Bois-Seigneur-Isaac, Belgium

Benoît Drooghaag