Patent
Method for double-ended line qualification and monitoring of xDSL links
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TLDR
In this article, a method for double-ended line qualification and monitoring of XDSL links employs a single test program which is sent by a first subscriber at one end of the xDSL link to a second subscriber at the other end.Abstract:
A method for double-ended line qualification and monitoring of xDSL links employs a single test program which is sent by a first subscriber at one end of the xDSL link to a second subscriber at the other end of the xDSL link. Line qualification and/or monitoring is carried out by processing this test program and sending the test results obtained in this step back to the first subscriber. The line qualification and/or monitoring is triggered after the code of the test program has been transmitted by the first subscriber. In this method, the first subscriber represents a modem at the switching end and the second subscriber represents a modem at the subscriber end. The test program is a program module which is connected to other program modules via a message queue.read more
Citations
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References
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Patent
Method and apparatus for adaptive, variable bandwidth, high-speed data transmission of a multicarrier signal over digital subscriber lines
P.S. Chow,John M. Cioffi +1 more
TL;DR: In this article, the authors propose an adaptive, variable bandwidth, high-speed data transmission of a multicarrier signal over digital subscriber lines wherein the initial optimal transmission bandwidth is identified based on initial signal-to-noise ratio (SNR) estimates of the orthogonal carriers of the multic-carrier system.
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