Automated system and method for management of digital subscriber lines

A system for the automated management of a plurality of digital subscriber lines in a telecommunication network capable of providing broadband data transmission between a central office and one or more subscribers using symmetric and asymmetric transmission comprising:

• means for selecting an allowed total average transmit power and signal-to-noise ratio margin for each digital subscriber line;
• means for measuring or estimating the crosstalk couplings between digital subscriber lines;
• means for determining the loop response function for each digital subscriber line;
• means for setting the initial transmit power and bit rates for each digital subscriber line;
• means for iteratively calculating the sum of all crosstalk into and for finding the optimal transmit power for each asymmetric digital subscriber line until a predetermined stopping criterion is reached;
• and,
• means for iteratively calculating the sum of all crosstalk into and for finding the maximum bit rate for each symmetric digital subscriber line until a predetermined stopping criterion is reached.

A system for the management of one or more digital subscriber lines for providing communications services from a central office to a subscriber modem comprising:

• means for measuring noise on a first digital subscriber line;
• means for separating the measured noise into a crosstalk component and an electromagnetic interference (EMI) component;
• means for identifying the type of disturber causing the crosstalk component;
• means for identifying the identity of the actual crosstalk disturber;
• means for communicating with the crosstalk disturber in order to lower the power spectral density of the disturber;
• and,
• means for reassigning the crosstalk disturber in order to reduce crosstalk on the first digital subscriber line.

A method for the management of digital subscriber lines used to provide DSL service comprising the steps of:

• measuring the noise on a first digital subscriber line;
• separating the noise into a crosstalk component and an EMI component;
• identifying the type of crosstalk disturber causing the crosstalk component of the noise;
• determining if the crosstalk component of the noise degrades the DSL service on the first digital subscriber line;
• and,
• if the DSL service is degraded by the crosstalk component of the noise, identifying the identity of the crosstalk disturber;
• and,
• lowering the transmit power of the crosstalk disturber so as to reduce the crosstalk component of the noise.