Method and apparatus for controlling timing of a transmission signal from a network termination device

摘要

In a method for controlling timing of a transmission signal from a network termination device having a receiver and a transmitter, a signal is received at the receiver of the network termination device, the signal having been transmitted in accordance with a predetermined bit rate. A core clock signal for the receiver is determined based on the predetermined bit rate at which the signal was transmitted, and the core clock signal is communicated to the transmitter of the network termination device. At the transmitter of the network termination device, a phase adjusted clock signal is generated, and the phase adjusted clock signal is set as the transmitter clock signal. The transmitter clock signal is offset from the core clock signal, and the transmission signal is transmitted from the transmitter of the network termination device based on the transmitter clock signal.

主权项

1. A method for controlling timing of a transmission signal from a network termination device having a receiver and a transmitter, the method comprising:
receiving a signal at the receiver of the network termination device, the signal having been transmitted in accordance with a predetermined bit rate; recovering a reference clock based on the signal received at the receiver; determining a core clock signal for the receiver based on the recovered reference clock; and communicating the core clock signal to the transmitter of the network termination device; and at the transmitter of the network termination device,
generating a phase adjusted clock signal, andsetting the phase adjusted clock signal as the transmitter clock signal, wherein the transmitter clock signal is offset from the core clock signal, and wherein the transmission signal is transmitted from the transmitter of the network termination device based on the transmitter clock signal.