PROTECTION OF DISTRIBUTED ANTENNA SYSTEMS
First Claim
Patent Images
1. A distributed antenna apparatus, comprising:
- at least one downlink radio frequency (RF) interface configured to receive downlink RF signals and distribute the downlink RF signals over at least one downlink communications medium to one or more remote antenna units (RAUs); and
at least one protection circuit communicatively coupled to the at least one downlink RF interface, the at least one protection circuit being configured fordetecting electrical power of at least a portion of the downlink RF signals, anddiverting a substantial portion of the downlink RF signals away from the at least one downlink RF interface in response to the detected electrical power being equal to or greater than a predetermined electrical power.
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Abstract
A protection circuit may be configured for detecting electrical power of downlink radio frequency (RF) signals, and diverting a substantial portion of the downlink RF signals away from a downlink RF interface of a distributed antenna system DAS in response to the detected electrical power being equal to or greater than a predetermined electrical power. The downlink RF signals diverted away from the downlink RF interface may be routed to an electrical load. The protection circuit may include hysteresis.
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Citations
21 Claims
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1. A distributed antenna apparatus, comprising:
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at least one downlink radio frequency (RF) interface configured to receive downlink RF signals and distribute the downlink RF signals over at least one downlink communications medium to one or more remote antenna units (RAUs); and at least one protection circuit communicatively coupled to the at least one downlink RF interface, the at least one protection circuit being configured for detecting electrical power of at least a portion of the downlink RF signals, and diverting a substantial portion of the downlink RF signals away from the at least one downlink RF interface in response to the detected electrical power being equal to or greater than a predetermined electrical power. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. A method of protecting at least one device of a distributed antenna apparatus, comprising:
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receiving downlink RF signals; detecting electrical power of at least a portion of the downlink RF signals; and not distributing the downlink RF signals over at least one downlink communications medium to one or more remote antenna units (RAUs), comprising diverting a substantial portion of the downlink RF signals away from the at least one device of the distributed antenna apparatus in response to the detected electrical power being equal to or greater than a predetermined electrical power. - View Dependent Claims (14, 15, 16, 17, 18, 19)
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20. A method of operating a distributed antenna apparatus, comprising:
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receiving downlink RF signals; detecting electrical power of at least a portion of the downlink RF signals; and distributing a substantial portion of the downlink RF signals over at least one downlink communications medium to one or more remote antenna units (RAUs) in response to the detected electrical power being less than a predetermined electrical power. - View Dependent Claims (21)
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Specification