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US 2021/0243043 A1Published application
Power management for distributed communication systems, and related components, systems, and methods
AssigneeCorning Optical Communications LLC
InventorsAmi Hazani, Guy Lupescu, Ofer Nisan
Life of this patent
Estimating the term…
Abstract
Power management techniques in distributed communication systems in which the power available at a remote unit (RU) is measured and compared to the power requirements of the RU. Voltage and current are measured for two dummy loads at the RU and these values are used to solve for the output voltage of the power supply and the resistance of the wires. From these values, a maximum power available may be calculated and compared to power requirements of the RU.
Claims20
A distributed communication system, comprising:
- head-end equipment including a head-end controller;
- a plurality of cables comprising optical fibers in communication with the head-end equipment;
- and
- a plurality of remote units optically coupled to the plurality of cables, at least one remote unit comprising:
- at least one antenna configured to transmit radio frequency signals into a coverage area;
- a power input configured to receive a power signal through a power medium;
- a power over Ethernet integrated circuit (POE IC) configured to measure voltage and current from the power input;
- and
- a control system configured to:
- open a services switch between the power input and a real load;
- instruct the POE IC to close a first switch coupling a first load resistance to the power input;
- instruct the POE IC to measure a first voltage and a first current associated with the first load resistance;
- instruct the POE IC to open the first switch and close a second switch coupling a second load resistance to the power input;
- instruct the POE IC to measure a second voltage and a second current associated with the second load resistance;
- and
- calculate an available power for the remote unit.
13 more elements
A distributed communication system, comprising:
- head-end equipment including a head-end controller;
- a plurality of cables comprising optical fibers;
- and
- a plurality of remote units optically coupled to the plurality of cables, at least one remote unit comprising:
- at least one electrical-to-optical (E/O) converter;
- at least one optical-to-electrical (O/E) converter;
- at least one antenna configured to transmit radio frequency signals into a coverage area;
- a power input configured to receive a power signal from a power distribution module;
- a power over Ethernet integrated circuit (POE IC) comprising a current sensor configured to measure voltage and current from the power input;
- and
- at least one control system configured to:
- open a services switch between the power input and a real load;
- instruct the POE IC to close a first switch coupling a first load resistance to the power input;
- instruct the POE IC to measure a first voltage and a first current associated with the first load resistance;
- instruct the POE IC to open the first switch and close a second switch coupling a second load resistance to the power input;
- instruct the POE IC to measure a second voltage and a second current associated with the second load resistance;
- and
- calculate an available power for the remote unit.
15 more elements
A distributed communication system, comprising:
- head-end equipment including a head-end controller and at least one electrical-to-optical (E/O) converter;
- a plurality of cables comprising at least one optical fiber;
- and
- a plurality of remote units optically coupled to the plurality of cables, at least one remote unit comprising:
- at least one optical-to-electrical (O/E) converter;
- at least one antenna configured to transmit into a coverage area;
- a power input configured to receive a power signal;
- a power over Ethernet integrated circuit (POE IC) configured to measure at least one of voltage and current from the power input;
- and
- a control system configured to:
- open a services switch between the power input and a real load;
- instruct the POE IC to close a first switch coupling a first load resistance to the power input;
- instruct the POE IC to measure a first voltage and a first current associated with the first load resistance;
- instruct the POE IC to open the first switch and close a second switch coupling a second load resistance to the power input;
- instruct the POE IC to measure a second voltage and a second current associated with the second load resistance;
- calculate an available power for the remote unit;
- and
- at least one of reduce transmission power for one or more services and shut off one or more services if the available power is insufficient for all services.
15 more elements
A distributed communication system, comprising:
- head-end equipment including a head-end controller;
- a plurality of cables comprising optical fibers optically coupled to the head-end equipment;
- and
- a plurality of remote units optically coupled to the plurality of cables, at least one remote unit comprising:
- at least one electrical-to-optical (E/O) converter;
- at least one optical-to-electrical (O/E) converter;
- at least one antenna configured to transmit radio frequency signals into a coverage area;
- a power input configured to receive a power signal;
- a power over Ethernet integrated circuit (POE IC) configured to measure at least one of voltage and current from the power input;
- and
- a control system configured to:
- open a services switch between the power input and a real load;
- instruct the POE IC to close a first switch coupling a first load resistance to the power input;
- instruct the POE IC to measure a first voltage and a first current associated with the first load resistance;
- instruct the POE IC to open the first switch and close a second switch coupling a second load resistance to the power input;
- instruct the POE IC to measure a second voltage and a second current associated with the second load resistance;
- calculate an available power for the remote unit;
- and
- shut off a service if the available power is insufficient for all services.
16 more elements
Dependencies are inferred from the claim text.