최소 단어 이상 선택하여야 합니다.
최대 10 단어까지만 선택 가능합니다.
다음과 같은 기능을 한번의 로그인으로 사용 할 수 있습니다.
NTIS 바로가기다음과 같은 기능을 한번의 로그인으로 사용 할 수 있습니다.
DataON 바로가기다음과 같은 기능을 한번의 로그인으로 사용 할 수 있습니다.
Edison 바로가기다음과 같은 기능을 한번의 로그인으로 사용 할 수 있습니다.
Kafe 바로가기국가/구분 | United States(US) Patent 등록 |
---|---|
국제특허분류(IPC7판) |
|
출원번호 | US-0472926 (2017-03-29) |
등록번호 | US-10136200 (2018-11-20) |
발명자 / 주소 |
|
출원인 / 주소 |
|
대리인 / 주소 |
|
인용정보 | 피인용 횟수 : 0 인용 특허 : 498 |
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
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.
1. A wireless communication system deployed in a building infrastructure, the wireless communication system comprising: a head end unit configured to electronically receive and convert input electrical downlink radio frequency (RF) signals to optical downlink RF signals to be distributed on an input
1. A wireless communication system deployed in a building infrastructure, the wireless communication system comprising: a head end unit configured to electronically receive and convert input electrical downlink radio frequency (RF) signals to optical downlink RF signals to be distributed on an input fiber;an optical line terminal (OLT) configured to receive and distribute optical multiplexed data signals on the input fiber;an optical network terminal (ONT) component configured to terminate one or more fiber optic lines and demultiplex the routed optical multiplexed data signals into component parts;a plurality of remote units each coupled to an output fiber among a plurality of output fibers and deployed over multiple floors of the building infrastructure;a splitter component configured to receive and route the optical downlink RF signals and the optical multiplexed data signals from the input fiber to the plurality of output fibers, wherein the splitter component is collocated with at least one of the plurality of remote units and wherein the collocated splitter component and remote unit is connected to the ONT component via an electrical path, the electrical path comprising one or more electrical conductors for providing electrical power from the ONT component to the collocated splitter component and remote unit;a plurality of optical cables coupling the head end unit to the plurality of remote units deployed over the multiple floors of the building infrastructure;a riser cable deployed between the head end unit and the splitter component;a plurality of optical fiber cables connecting the splitter component to the plurality of remote units; anda plurality of electrical power sources, one or more of the plurality of electrical power sources located separately from the plurality of remote units in a respective coverage area of one or more of the plurality of remote units, the plurality of electrical power sources configured to provide power for the one or more of the plurality of remote units, wherein:the head end unit is configured to: receive downlink RF signals from at least one RF source and to provide the downlink RF signals to the plurality of remote units; andreturn uplink RF signals received from the plurality of remote units back to the at least one RF source; andeach remote unit among the plurality of remote units is configured to: receive the routed optical downlink RF signals and the routed optical multiplexed data signals from the coupled output fiber among the plurality of output fibers;convert the routed optical downlink RF signals to output electrical downlink RF signals; andreceive power delivered from the one or more of the plurality of electrical power sources located separately from the remote unit in a respective coverage area of the remote unit to power the remote unit; andeach remote unit comprises: a remote antenna unit comprising an antenna system configured to distribute the output electrical downlink RF signals into the respective coverage area of the remote unit, wherein each antenna system is configured to receive uplink RF signals from a respective coverage area. 2. The wireless communication system of claim 1, wherein the wireless communication system comprises a remote unit for each of a plurality of delineated spaces in the building infrastructure, and wherein the wireless communication system comprises a plurality of electrical power sources not located in any of the plurality of remote units, and wherein a respective one of the plurality of electrical power sources is associated with each of the plurality of delineated spaces and is configured to deliver power to a respective remote unit in a respective one of the plurality of delineated spaces. 3. The wireless communication system of claim 1, wherein each remote unit includes an optical-to-electrical converter configured to convert the received optical downlink RF signals to the output electrical downlink RF signals to be communicated wirelessly through the antenna system of the remote unit. 4. The wireless communication system of claim 3, further comprising the at least one RF source connected to the head end unit and providing the input electrical downlink RF signals to the head end unit. 5. The wireless communication system of claim 1, wherein at least one of the plurality of remote units is deployed in a ceiling of a living unit. 6. The wireless communication system of claim 1, wherein the splitter component is configured to route the optical downlink RF signals and the optical multiplexed data signals based on wavelength or polarization. 7. The wireless communication system of claim 1, wherein the plurality of remote units includes at least five remote units. 8. The wireless communication system of claim 2, wherein the respective coverage area corresponds to an individual delineated space of the plurality of delineated spaces within the building infrastructure, and wherein the one or more of the plurality of electrical power sources comprises an electrical power source located in the individual delineated space within the building infrastructure and configured to provide power for both the remote antenna unit and the ONT component of at least one of the plurality of remote units over an electrically conductive network cable connecting the one or more of the plurality of electrical power sources and the at least one of the plurality of remote units. 9. The wireless communication system of claim 8, wherein the at least one of the plurality of remote units is connected to a wall outlet located in the individual delineated space of the building infrastructure, and the ONT component and the remote antenna unit of the at least one of the plurality of remote units are configured to receive power from the wall outlet over the electrically conductive network cable. 10. A wireless communication system, comprising: a head end unit configured to electronically receive and convert input electrical downlink radio frequency (RF) signals to optical downlink RF signals to be distributed on an optical communication path;an optical line terminal (OLT) configured to receive and distribute optical multiplexed data signals on the optical communication path;at least one optical network terminal (ONT) component located proximate to at least one remote antenna unit and configured to demultiplex the optical multiplexed data signals into component parts; anda plurality of remote units each coupled to the head end unit and the OLT by the optical communication path to receive the optical downlink RF signals and the optical multiplexed data signals from the head end unit and the OLT, each remote unit of the plurality of remote units configured to receive power delivered from an electrical power source located in a respective coverage area of one or more of the plurality of the remote units, wherein each remote unit comprises: an optical-to-electrical converter configured to convert the received optical downlink RF signals to output electrical downlink RF signals; anda remote antenna unit comprising an antenna system configured to distribute the output electrical downlink RF signals into a respective coverage area of the remote unit;wherein the wireless communication system further comprises an electrically conductive cable connecting the at least one ONT component to at least one remote antenna unit of at least one of the plurality of remote units, the electrically conductive cable configured to provide power from the at least one ONT component to the at least one remote antenna unit, andwherein the head end unit is configured to receive input electrical downlink RF signals from at least one RF source. 11. The wireless communication system of claim 10, wherein the wireless communication system comprises a remote unit for each of a plurality of delineated spaces in a building infrastructure, and wherein the wireless communication system comprises a plurality of electrical power sources not located in any of the plurality of remote units, and wherein a respective one of the plurality of electrical power sources is associated with each of the plurality of delineated spaces and is configured to deliver power to a respective remote unit in a respective one of the plurality of delineated spaces. 12. The wireless communication system of claim 11, wherein the plurality of remote units comprises at least five remote units deployed on multiple floors of the building infrastructure, and wherein the wireless communication system comprises an electrical power source for each remote unit being located in the respective one of the plurality of delineated spaces for the respective remote unit. 13. The wireless communication system of claim 11, wherein the optical communication path comprises at least one splitter component with at least one input fiber and a plurality of output fibers, the at least one splitter component being capable of routing the optical downlink RF signals and the optical multiplexed data signals based on wavelength or polarization. 14. The wireless communication system of claim 13, further comprising a plurality of electrically conductive cables connecting the at least one ONT component to respective electrical power sources, whereby the at least one ONT component provides power received from the respective electrical power sources to one or more of the plurality of remote units. 15. The wireless communication system of claim 14, wherein the optical communication path includes: a riser cable deployed between the head end unit and the at least one splitter component; anda plurality of optical fiber cables connecting the at least one splitter component to the plurality of remote units, wherein each remote unit is coupled to the at least one splitter component by at least one optical fiber communication path.
Copyright KISTI. All Rights Reserved.
※ AI-Helper는 부적절한 답변을 할 수 있습니다.