Abstract: 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.

Abstract: 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.

Abstract: 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.

Abstract: The method and a device determine a parameter that characterizes a number of spare positions to be used for cancelling the crosstalk of lines joining a digital subscriber line vectoring group. The vectoring includes cancelling the crosstalk caused by a maximum number of lines of the vectoring group and reserving the number of spare positions. In order to provide a method and a device for determining a number of spare positions such that the vectoring group operates efficiently, the method includes determining a residual crosstalk metric that depends on a residual crosstalk between at least two subscriber lines of the vectoring group; and determining the parameter that characterizes the number of spare positions depending on the at least one residual crosstalk metric by successively modifying the parameter until the residual crosstalk metric fulfils a termination condition.

Abstract: 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.

Abstract: Method for testing an analog front end coupled to a telecommunication line of a telecommunication system and a related testing system is described. The testing system comprises a single ended line testing measurement module for applying single ended line testing measurements via said analog front-end upon said line and for collecting thereby single ended line testing measurements; and a processing means for interpreting the single ended line testing measurements and for thereby judging that the analog front end being out of order and a control means for controlling the single ended line testing measurement module and processing means.

Abstract: A home network topology identification method including conducting transfer function measurements of all possible pairs of connected network devices to obtain a set of measured transfer functions, defining initial values for each network topology parameter of an estimated set of network topology parameters to establish an estimated network topology, calculating a set of estimated transfer functions of all possible pairs of connected network devices from the estimated set of network topology parameters, comparing the set of estimated transfer functions and the set of measured transfer functions by applying a metric function to obtain a measure of difference, applying a criterion on the obtained measure of difference, adapting at least one network topology parameter of the estimated set of network topology parameters if the obtained measure of difference fails to fulfill the criterion, and repeating the calculating to adapting until one of the obtained measures of difference meets the criterion.

Abstract: 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.

Abstract: A method and a device for clustering lines of a wireline network in a number of virtual binders includes obtaining a noise value samples pertaining to different lines of the wireline network at substantially coinciding sampling moments, detecting corresponding features in these series, determining degrees of correlation between these features, and assigning the lines to one or more virtual binders on the basis of their mutual degrees of correlation.

Abstract: The present invention refers to a method (45) for identification (53, 73) of an impairment (59) within a telecommunication line (13), the method (45) comprising determining (49) first measurement data (Hlog) that characterize a transfer function of the telecommunication line (13). In order to provide a method (45) for identification of an impairment (59) within the telecommunication line (13) that can be applied on the telecommunication line (13) without interrupting the operation of the line (13) and that can easily be implemented in connection with existing system such as existing DSL systems, it is suggested that the method (45) further comprise determining (55) at least one periodicity interval (?f1, ?f2) of oscillations of the transfer function and that the impairment (59) be identified depending on said determining (55).

Abstract: 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.

Abstract: 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.

Abstract: A method for remotely detecting electromagnetic interference on a data transmission line of a communication network includes measuring at a client site a noise power spectrum on the data transmission line as a function of frequency, for a frequency range. The noise is present when the data transmission line is not carrying a data signal. The method further includes forwarding the measured noise power spectrum to a remote computer at a network operator's site, determining periodicities in the measured power spectrum by the remote computer, and determining the switching frequency of a power supply unit at the client site by the remote computer based on periodicities in the power spectrum.

Abstract: A method for automatically generating a limited set of spectrum and service profiles for use in an operator's telecommunication network includes collecting physical layer parameter values for individual lines, determining a set of optimized parameter values for each one of the individual lines, estimating a probability density function for each optimized parameter based on optimized parameter values for multiples lines, sampling the probability density function for each optimized parameter and selecting and combining according to parameter and profile policies a set of optimized parameter values to generate the limited set of spectrum and service profiles.

Abstract: A home network physical layer analysis platform includes a collection engine adapted for receiving information indicative for stability and performance of an existing home network physical layer configuration from one or more home network devices. Each of the network devices are connected in the home network by a respective network technology. An analysis engine is adapted for analysing the information to identify whether substantial network connectivity problems exist in the home network, and for associating the information with a problem out of a set of predetermined problems, if connectivity problems exist. The platform also includes a communication means for communicating the problem to a user interface, such that the respective user is informed about the problem.

Abstract: A home network physical layer configuration platform according to the invention comprises: a collection engine for receiving information indicative for the stability of an existing home network physical layer configuration from one or more home network devices; a configuration parameter determination engine for determining the optimal values of one or more home network physical layer configuration parameter; and a configuration parameter setting engine for setting one or more home network physical layer configuration parameter with the optimal values determined.

Abstract: A process for calibrating a first loop feature value estimation method using a first locally measurable loop characteristic and a first set of parameters, includes taking measurements of the first locally measurable loop characteristic for a plurality of loops, and obtaining a reference data set representing reference estimates of the loop feature value. The reference estimates are obtained by performing a calibrated second loop feature value estimation method using a second locally measurable loop characteristic and a second set of parameters. The method further includes determining calibrated parameters so as to minimize a deviation between the reference estimates and estimates obtained by applying the first estimation method to the measurements using the calibrated parameters as the first set of parameters.

Abstract: Method for testing an analogue front end coupled to a telecommunication line of a telecommunication system and a related testing system is described. The testing system comprises a single ended line testing measurement module for applying single ended line testing measurements via said analogue front-end upon said line and for collecting thereby single ended line testing measurements; and a processing means for interpreting the single ended line testing measurements and for thereby judging that the analogue front end being out of order and a control means for controlling the single ended line testing measurement module and processing means.

Abstract: A diagnostic engine for remotely determining global line characteristics of a xDSL telecommunication line from an access node location. The diagnostic engine comprises first, second, and preferably third, measurement means adapted to measure respectively first, second and third line characteristics according to three distinct measurement techniques such as MELT, SELT and DELT. The diagnostic engine further comprises combining means able to combine the measured line characteristics in order to derive thereof global line characteristics or information relative to the physical state of the line as well as possible consequences on DSL service. By combining the three measurements in the combining means, the resulting global line characteristics of the line are improved with respect to performing separately interpretations of the three measurements.

Abstract: A method to identify impairments in telecommunication lines i, j , k, . . . of a binder includes globally performing Single-Ended Line Testing SELT on the lines of the bundle. The method further includes applying an input signal in a first mode out of a multi-mode group including at least one differential mode for a respective line of the bundle and including at least one phantom mode for a respective pair of lines of the bundle. The method further includes measuring an echo signal E in a second mode out of the multi-mode group, the second mode being different of the first mode, and analyzing the echo signal in view of the input signal for deriving therefrom the searched impairments.