Systems and methods of optical path protection for distributed antenna systems
First Claim
1. A system comprising:
- a hub;
at least one node that is located remotely from the hub;
wherein the hub is coupled to the at least one node by a first fiber path and a second fiber path, the first fiber path comprising an uplink fiber and a downlink fiber, and the second fiber path comprising an uplink fiber and a downlink fiber;
wherein the at least one node is coupled to the downlink fiber of the first fiber path and the downlink fiber of the second fiber path via an optical combiner;
wherein the at least one node is further coupled to the uplink fiber of the first fiber path and the uplink fiber of the second fiber path via an optical splitter;
wherein the at least one node further monitors a signal quality of a downlink optical signal and communicates to the hub information indicative of the signal quality; and
wherein the hub switches communications between the hub and the at least one node from the first fiber path to the second fiber path based on the information indicative of the signal quality.
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Accused Products
Abstract
Systems and methods for optical path protection for distributed antenna systems are provided. In one embodiment, a system comprises a hub and at least one node located remotely from the hub. The hub is coupled to the node by first and second fiber paths, the first fiber path comprising an uplink fiber and a downlink fiber, the second fiber path comprising an uplink fiber and a downlink fiber. The node is coupled to the downlink fibers of the first and second fiber paths via an optical combiner, and is further coupled to the uplink fibers of the first and second fiber paths via an optical splitter. The node further monitors a signal quality of a downlink optical signal and communicates to the hub information indicative of the signal quality. The hub switches communications between the hub and the node from the first to second fiber path based on the information.
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Citations
19 Claims
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1. A system comprising:
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a hub; at least one node that is located remotely from the hub; wherein the hub is coupled to the at least one node by a first fiber path and a second fiber path, the first fiber path comprising an uplink fiber and a downlink fiber, and the second fiber path comprising an uplink fiber and a downlink fiber; wherein the at least one node is coupled to the downlink fiber of the first fiber path and the downlink fiber of the second fiber path via an optical combiner; wherein the at least one node is further coupled to the uplink fiber of the first fiber path and the uplink fiber of the second fiber path via an optical splitter; wherein the at least one node further monitors a signal quality of a downlink optical signal and communicates to the hub information indicative of the signal quality; and wherein the hub switches communications between the hub and the at least one node from the first fiber path to the second fiber path based on the information indicative of the signal quality. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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16. A method comprising:
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communicating between a hub and at least one node, wherein the hub is coupled to the at least one node by a first fiber path and a second fiber path, the first fiber path comprising an uplink fiber and a downlink fiber, and the second fiber path comprising an uplink fiber and a downlink fiber, wherein the at least one node is coupled to the uplink fiber of the first fiber path and the uplink fiber of the second fiber path via an optical splitter, and wherein the at least one node is coupled to the downlink fiber of the first fiber path and the downlink fiber of the second fiber path via an optical coupler; determining a signal quality of a downlink optical signal as received at a first node via the first fiber path; communicating to the hub information indicative of the signal quality; and switching communications between the hub and the at least one node from the first fiber path to the second fiber path based on the information indicative of the signal quality. - View Dependent Claims (17, 18, 19)
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Specification