METHOD FOR TESTING VDSL LOOPS

A test procedure for a VDSL distribution loop utilizes loop pre-qualification based on information stored in a network database in combination with field tests that are performed to confirm minimum performance capabilities of pre-qualified loops. During qualification, a VDSL test signal is sent on t...

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Bibliographic Details
Main Authors FINK, RICHARD, H, NEVELLE, JAMES, W, PETT, TODD, A
Format Patent
LanguageEnglish
French
German
Published 09.10.2002
Edition7
Subjects
ELECTRIC COMMUNICATION TECHNIQUE
ELECTRICITY
TELEPHONIC COMMUNICATION
TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHICCOMMUNICATION
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Summary:A test procedure for a VDSL distribution loop utilizes loop pre-qualification based on information stored in a network database in combination with field tests that are performed to confirm minimum performance capabilities of pre-qualified loops. During qualification, a VDSL test signal is sent on the loop, and SNR and bit error ratios are measured for desired upstream and downstream transmission rates. These measurements are compared to threshold values to verify performance of the loop for VDSL use. Thus, a cost effective test process is provided which allows accurate test data collection for sensitive VDSL distribution loops without the need for any pre-provisioning of the loop, and to allow for validation of the loop configuration database.
Bibliography:Application Number: EP20000963776