Centralized optical-fiber-based wireless picocellular systems and methods
First Claim
1. A centralized optical-fiber-based wireless picocellular system for wirelessly communicating with one or more client devices, comprising:
- a plurality of service units arranged at a central location;
a plurality of electrical-to-optical (E/O) converters and optical-to-electrical (O/E) converters at the central location and electrically coupled to the service units via respective one or more downlink multiplexers and one or more uplink multiplexers;
multiple transponders, with each transponder optically coupled to one E/O converter and one O/E converter at the central location via respective optical fiber RF communication links; and
wherein each transponder forms a picocell that places one, some or all of the service units in radio-frequency (RF) communication with the one or more client devices within a given picocell via the corresponding optical fiber RF communication links.
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Abstract
The centralized optical-fiber-based wireless picocellular system includes one or more service units at a central head-end station. The one or more service units are optically coupled to one or more transponders via respective one or more optical fiber RF communication links. The transponders are each adapted to provide within the associated picocell electromagnetic RF service signals from different service units, and receive electromagnetic RF service signals from any client device within the picocell. The service signal from the particular client device is sent over the optical fiber RF communication link back to one or more service units. The transponders are arranged along the length of one or more optical fiber cables, which can be distributed throughout a building infrastructure. This creates a picocellular coverage area that provides a number of different wireless services relative to the building infrastructure. The service units can generate the electrical service signals, pass such signals to and from one or more outside networks, and/or coordinate the delivery of the signals between client devices within the picocellular coverage area.
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Citations
20 Claims
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1. A centralized optical-fiber-based wireless picocellular system for wirelessly communicating with one or more client devices, comprising:
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a plurality of service units arranged at a central location; a plurality of electrical-to-optical (E/O) converters and optical-to-electrical (O/E) converters at the central location and electrically coupled to the service units via respective one or more downlink multiplexers and one or more uplink multiplexers; multiple transponders, with each transponder optically coupled to one E/O converter and one O/E converter at the central location via respective optical fiber RF communication links; and wherein each transponder forms a picocell that places one, some or all of the service units in radio-frequency (RF) communication with the one or more client devices within a given picocell via the corresponding optical fiber RF communication links. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A centralized optical-fiber-based wireless picocellular system for wirelessly communicating with one or more client devices, comprising:
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a centralized head-end station having one or more service units; one or more transponders each adapted to convert optical RF service signals to electromagnetic RF service signals and vice versa over a picocell formed by the corresponding transponder; one or more optical fiber RF communication links that optically couple the one or more transponders to each of the one or more service units; wherein the one or more service units send service signals to one or more transponders over one or more of the optical fiber RF communication links to cause the one or more transponders to transmit and receive electromagnetic service signals and relay service signals emitted by the one or more client devices within a given picocell back to one or more of the service units over the corresponding one or more optical fiber RF communication links. - View Dependent Claims (10, 11, 12, 13, 14)
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15. An optical-fiber-based wireless picocellular method of communicating with one or more client devices, comprising.
sending service signals from at least one service unit in a central head-end station to one or more transponders over corresponding one or more optical fiber RF communication links in order to transmit the service signals over corresponding one or more picocells formed by the one or more multiple transponders; -
detecting electromagnetic service signals emitted by any client devices within the one or more picocells via the transponders for those picocells; and transmitting the received service signals to one or more service units at the central head-end station over the corresponding one or more optical fiber RF communication links. - View Dependent Claims (16, 17, 18, 19, 20)
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Specification