POWER MANAGEMENT FOR DISTRIBUTED COMMUNICATION SYSTEMS, AND RELATED COMPONENTS, SYSTEMS, AND METHODS
First Claim
Patent Images
1. A remote unit for use in a distributed communication system, comprising:
- 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 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.
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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.
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Citations
20 Claims
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1. A remote unit for use in a distributed communication system, comprising:
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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 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. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. A method of managing power in a remote unit of a distributed communication system, the method comprising:
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opening a services switch associated with a real load; while a first switch associated with a first resistance is closed, measuring a first voltage and first current associated with the first resistance; while a second switch associated with a second resistance is closed, measuring a second voltage and a second current associated with the second resistance; and calculating an available power for the remote unit based on the first current, the first voltage, the second current and the second voltage. - View Dependent Claims (14, 15, 16, 17, 18, 19)
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20. A distributed communication system, comprising a plurality of remote units, each remote unit comprising:
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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 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.
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Specification