Echo cancellation to alleviate timing varying channels

A non-transitory computer-readable medium that stores a set of instructions which when executed perform a method comprising:

• receiving, by an echo cancelation component during a training window, a feedback signal corresponding to one of a plurality of downstream paths;
• receiving, by the echo cancelation component during the training window, a combination upstream signal comprising a combination of upstream signals from a plurality of upstream paths;
• creating, by the echo cancelation component during the training window, a plurality of echo corrected signals using the feedback signal, the combination upstream signal, and a plurality of echo cancelation coefficients that each respectively correspond to each one of the plurality of echo corrected signals and that are different from each other;
• and
• selecting to use a one of the plurality of echo cancelation coefficients that corresponds to a one of the plurality of echo corrected signals that provides a best echo cancelation performance as compared to other ones of the plurality of echo corrected signals.

A system comprising:

• a memory storage;
• and
• a processing unit coupled to the memory storage, wherein the processing unit is operative to:
• receive, during a training window, a feedback signal corresponding to one of a plurality of downstream paths;
• receive, during the training window, a combination upstream signal comprising a combination of upstream signals from a plurality of upstream paths;
• create, during the training window, a plurality of echo corrected signals using the feedback signal, the combination upstream signal, and a plurality of echo cancelation coefficients that each respectively correspond to each one of the plurality of echo corrected signals and that are different from each other;
• and
• select to use a one of the plurality of echo cancelation coefficients that corresponds to a one of the plurality of echo corrected signals that provides a best echo cancelation performance as compared to other ones of the plurality of echo corrected signals.