Patent ID: 6690721
Filing Date: 2004-02-10
Classification: H04L,H04W

Abstract:
A method for recovering from a power cutback in a splitterless Asymmetric Digital Subscriber Line modem, where the power cutback enables simultaneous use of a telephone and the modem, the method comprising the steps of:determining whether transmitted power from the modem after a previous power cutback is sufficient to establish communication between the modem and a central office, and if not, reducing the previous power cutback by a step value to obtain a new power cutback, and applying the new power cutback to the modem to obtain a new transmitted power; repeating the above steps until the new transmitted power after the new power cutback is sufficient to establish communication between the modem and the central office, and wherein the determining step comprises the steps of: detecting an occurrence of a signal loss from the modem at the central office; and communicating the occurrence of the signal loss to the modem.