Method and arrangement for loop qualification in a digital subscriber line (DSL) system

A method and loop qualification unit for determining loop parameters of a topology of a twisted pair loop for a digital subscriber line system. The parameters are represented by a vector that receives a measurement of a SELT parameter measured at one end of the loop and a measurement of a DELT loop...

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Hauptverfasser:	JOAO CRISTOSTOMO WEYL ALBUQUERQUE COSTA, JAUME RIUS I RIU, CLAUDOMIRO DE SOUZA DE SALES JR, FREDRIK LINDQVIST
Format:	Patent
Sprache:	eng
Schlagworte:	ELECTRIC COMMUNICATION TECHNIQUE ELECTRICITY TELEPHONIC COMMUNICATION TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHICCOMMUNICATION
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creator	JOAO CRISTOSTOMO WEYL ALBUQUERQUE COSTA JAUME RIUS I RIU CLAUDOMIRO DE SOUZA DE SALES JR FREDRIK LINDQVIST
description	A method and loop qualification unit for determining loop parameters of a topology of a twisted pair loop for a digital subscriber line system. The parameters are represented by a vector that receives a measurement of a SELT parameter measured at one end of the loop and a measurement of a DELT loop transfer function measured at both ends of the loop. A first model generator generates a first model for the SELT parameter and a second model generator generates a second model for the DELT function based on the loop parameters represented by the vector. A processor then determines the parameters by minimizing the differences between the first model and the SELT parameter, and the second model and the DELT function. The determined parameters are represented by the vector that provides the minimization.
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subjects	ELECTRIC COMMUNICATION TECHNIQUE ELECTRICITY TELEPHONIC COMMUNICATION TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHICCOMMUNICATION
title	Method and arrangement for loop qualification in a digital subscriber line (DSL) system
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