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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Bibliographic Details
Main Authors LINDQVIST FREDRIK, COSTA JOAEO C. WEYL ALBUQERQUE, RIUS I RIU JAUME, DE SOUZA DE SALES, JR. CLAUDOMIRO
Format Patent
LanguageEnglish
Published 28.08.2012
Subjects
ELECTRIC COMMUNICATION TECHNIQUE
ELECTRICITY
TELEPHONIC COMMUNICATION
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Summary: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.
Bibliography:Application Number: US20090446259