DISTRIBUTED ANTENNA SYSTEM ARCHITECTURES
First Claim
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1. A wireless communication system deployed in a building infrastructure, the system comprising:
- a head end unit; and
at least five remote units coupled to the head end unit by an optical communication path and deployed over at least two floors of the building infrastructure, wherein each remote unit comprises;
at least one antenna system, each antenna system being capable of transmitting radio frequency (RF) signals into a respective coverage area of the remote unit, and to receive uplink RF communications signals from a respective coverage area; and
an optical network terminal (ONT) component, the ONT component being capable of terminating one or more optical fibers and demultiplexing optical signals into component parts,wherein at least one of the remote units is electrically connected to an electrical power source located in its respective coverage area, andwherein the optical communication path comprises at least one splitter component with at least one input fiber and a plurality of output fibers, the splitter component being capable of routing optical RF data transmissions based on at least one of wavelength and polarization.
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Abstract
Optical fiber-based wireless systems and related components and methods are disclosed. The systems support radio frequency (RF) communications with clients over optical fiber, including Radio-over-Fiber (RoF) communications. The systems may be provided as part of an indoor distributed antenna system (IDAS) to provide wireless communication services to clients inside a building or other facility. The systems incorporate various functions, such as optical network terminal (ONT), splitter, and local powering, in antenna coverage areas.
32 Citations
19 Claims
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1. A wireless communication system deployed in a building infrastructure, the system comprising:
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a head end unit; and at least five remote units coupled to the head end unit by an optical communication path and deployed over at least two floors of the building infrastructure, wherein each remote unit comprises; at least one antenna system, each antenna system being capable of transmitting radio frequency (RF) signals into a respective coverage area of the remote unit, and to receive uplink RF communications signals from a respective coverage area; and an optical network terminal (ONT) component, the ONT component being capable of terminating one or more optical fibers and demultiplexing optical signals into component parts, wherein at least one of the remote units is electrically connected to an electrical power source located in its respective coverage area, and wherein the optical communication path comprises at least one splitter component with at least one input fiber and a plurality of output fibers, the splitter component being capable of routing optical RF data transmissions based on at least one of wavelength and polarization. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A wireless communication system, comprising:
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a head end unit; and a plurality of remote units coupled to the head end unit by an optical communication path, wherein each remote unit comprises; an optical-to-electrical converter configured to convert received downlink optical communications signals to downlink electrical communications signals; and at least one antenna system, each antenna system being capable of transmitting the downlink communications signals into a respective coverage area of the remote unit and receiving uplink communications signals from the coverage area; an ONT component configured to terminate one or more optical fibers and to demultiplex optical signals into component parts, wherein at least one of the remote units is electrically connected to an electrical power source located in its respective coverage area, and wherein the head end unit is configured to receive downlink communications signals from at least one RF source and to provide the downlink communications signals to the remote units, and to return uplink communications received from the remote units back to the at least one RF source. - View Dependent Claims (9, 10, 11, 12, 13)
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14. A wireless communication system deployed in multiple floors of a building infrastructure, the system, comprising:
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a head end unit; an optical communication path comprising at least one splitter component with at least one input fiber and a plurality of output fibers, the splitter component being capable of routing optical transmissions based on at least one of wavelength and polarization, and a plurality of optical cables coupling the head end unit to a plurality of remote units deployed over multiple floors of the building infrastructure, each remote unit comprising; at least one antenna system, each antenna system being capable of transmitting RF signals into a respective coverage area of the remote unit; an ONT component configured to terminate one or more optical fibers and demultiplex optical signals into component parts, wherein at least one of the remote units is electrically connected to an electrical power source located in its respective coverage area. - View Dependent Claims (15, 16, 17, 18, 19)
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Specification