Patent ID: 7814354
Filing Date: 2010-10-12
Classification: H04L,Y02D

Abstract:
1. A method of regulating transceiver power consumption for a transceiver in a communications network comprising: monitoring a data receiver to detect a received data signal; and controlling a transceiver state machine to regulate transceiver power consumption in response to the presence or absence of a received data signal; wherein the transceiver state machine comprises a full-on state during which a wake up control signal is sent to power on a transmitter and a power control signal is sent to power on the transceiver, a full-off state during which the wake up signal is sent to power off the transmitter and the power control signal is sent to power off the transceiver, and a pending wake-up on state during which the wake up control signal is sent to power on the transmitter and the power control signal is sent to power off the transceiver, and wherein the transceiver state machine is configured to: transition from the full-on state to the full-off state after failing to detect a received data signal for a period determined by a first timing circuit; transition from the full-off state to the pending wake-up on state after failing to detect a received data signal for an additional period determined by the first timing circuit; and transition from the pending wake-up on state to the full-on state after sending out a data link signal, detecting a first received data signal in response to the data link signal within a first period determined by a second timing circuit, and detecting a second received data signal after detecting the first received data signal within a second period determined by the second signal timing circuit.