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US 11,901,947 B2Granted
Communication system employing optical frame templates
AssigneeNubis Communications, Inc.
InventorsPeter Johannes Winzer, Krishan Kumar Sabnani
Life of this patent
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Abstract
An apparatus includes baseband processing circuitry configured to generate a baseband signal that is transmitted to a first network element and a second network element, and an optical power supply configured to generate a first optical signal and a second optical signal, transmit the first optical signal to the first network element, and transmit the second optical signal to the second network element. The first optical signal and the second optical signal include information that enables synchronization of the first and second network elements.
Claims21
An apparatus comprising:
- baseband processing circuitry configured to generate a baseband signal that is transmitted to a first network element and a second network element;
- an optical power supply configured to generate a first optical signal and a second optical signal, transmit the first optical signal to the first network element, and transmit the second optical signal to the second network element, wherein the first optical signal and the second optical signal include information that enables synchronization of the first and second network elements;
- wherein the optical power supply comprises:
- a light source;
- and
- an electronic controller configured to control the light source to produce a sequence of optical frame templates and imprint control information onto light of at least some of the optical frame templates;
- wherein each of the optical frame templates comprises a respective frame header, and a respective frame body;
- wherein each frame body comprises a respective optical pulse train;
- wherein the sequence of optical frame templates has a first time duration;
- wherein each of the respective frame headers has a second time duration;
- wherein each of the respective frame bodies has a third time duration, a sum of the second and third time durations being smaller than or equal to the first time duration;
- wherein each of the respective optical pulse trains has a period of a fourth time duration that is smaller than a smaller one of the second and third time durations;
- wherein the third time duration is at least 10 times longer than the fourth time duration;
- wherein the second time duration is at most 10% of the third time duration;
- and
- wherein the first time duration is at least 10 times longer than the third time duration.
13 more elements
A method comprising:
- providing a first optical signal from an optical power supply to a first network element;
- providing a second optical signal from the optical power supply to a second network element;
- at the first network element, using the first optical signal to synchronize a first local oscillator;
- and
- at the second network element, using the second optical signal to synchronize a second local oscillator;
- operating the first and second remote radio heads in synchronization;
- wherein each of the first optical signal and the second optical signal comprises a sequence of optical frame templates with control information imprinted onto light of at least some of the optical frame templates;
- wherein each of the optical frame templates comprises a respective frame header, and a respective frame body;
- wherein each frame body comprises a respective optical pulse train;
- wherein the sequence of optical frame templates has a first time duration;
- wherein each of the respective frame headers has a second time duration;
- wherein each of the respective frame bodies has a third time duration, a sum of the second and third time durations being smaller than or equal to the first time duration;
- wherein each of the respective optical pulse trains has a period of a fourth time duration that is smaller than a smaller one of the second and third time durations;
- wherein the third time duration is at least 10 times longer than the fourth time duration;
- wherein the second time duration is at most 10% of the third time duration;
- and
- wherein the first time duration is at least 10 times longer than the third time duration.
14 more elements
Dependencies are inferred from the claim text.