Patent ID: 6538451
Filing Date: 2003-03-25
Classification: H04B,H04L,H04M

Abstract:
A method for determining the make-up of a subscriber loop in a communications system, said make-up including the presence or absence and location of one or more of gauge changes and bridged taps, the length of the loop including the length of each bridged tap, and the gauge of each loop section, said method comprising the steps of:repetitively applying signals to the subscriber loop to obtain echoes from the subscriber loop; receiving the echoes based on said transmitted signals, said echoes being caused by discontinuities on the subscriber loop; and using a mathematical model contained in a processor, determining the make-up of the loop based on the received echoes from said repetitively applied signals by using a function in the time domain based on said mathematical model separately for each loop section that causes an echo.