System and method to reduce noise estimation error during a digital subscriber line communication session and digital subscriber line modem incorporating the same

摘要

A system for, and method of, reducing noise estimation error during a digital subscriber line (DSL) communication session and a DSL modem incorporating the system or the method. In one embodiment, the system includes: (1) a memory configured to contain data regarding frequency-dependent noise estimation error experienced during a prior DSL communication session and (2) a noise injector coupled to the memory and configured to employ the data to introduce frequency-dependent synthetic noise during a training period of the DSL communication session.