To network synchronization
AssigneeBritish Telecommunications public limited company
InventorMarco Menchetti
Life of this patent
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Abstract
There is herein provided a method of controlling the frequency of operation of a component of a telecommunications network, the method including combining a first signal and a second signal to form a heterodyne signal, transmitting the heterodyne signal from a first node of the telecommunications network, detecting the transmitted heterodyne signal at a second node of the telecommunications network, and controlling a frequency of operation of a component of the telecommunications network using a frequency of the detected heterodyne signal.
Claims10
A method of controlling a frequency of operation of a component of a telecommunications network, the method comprising:
- forming a heterodyne signal from a first signal and a second signal by:
- controlling a beat frequency of the heterodyne signal by modifying a frequency of the first signal by a modulator, and then
- combining the frequency-modified first signal and the second signal to form the heterodyne signal;
- transmitting the heterodyne signal from a first node of the telecommunications network;
- detecting the transmitted heterodyne signal at a second node of the telecommunications network;
- and
- controlling a frequency of operation of a component of the telecommunications network using a frequency of the detected heterodyne signal.
A system for controlling a frequency of operation of a component of a telecommunications network, the system comprising:
- a combiner adapted to combine a first signal and a second signal to form a heterodyne signal;
- a photodetector adapted to measure a beat frequency of the heterodyne signal and use the measured beat frequency to control the beat frequency of the heterodyne signal;
- a transmitter adapted to transmit the heterodyne signal from a first node of the telecommunications network;
- a detector adapted to detect the transmitted heterodyne signal at a second node of the telecommunications network;
- and
- a controller adapted to control a frequency of operation of a component of the telecommunications network using a frequency of the detected heterodyne signal.
A method of controlling a frequency of operation of a component of a telecommunications network, the method comprising:
- combining a first signal and a second signal to form a heterodyne signal;
- measuring a beat frequency of the heterodyne signal and using the measured beat frequency to control the beat frequency of the heterodyne signal;
- transmitting the heterodyne signal from a first node of the telecommunications network;
- detecting the transmitted heterodyne signal at a second node of the telecommunications network;
- and
- controlling a frequency of operation of a component of the telecommunications network using a frequency of the detected heterodyne signal.
Dependencies are inferred from the claim text.