Distributed antenna system and C-RAN system utilizing smart detection of surrounding environment
地域：
NC
NC Hickory
摘要
In one example, a system comprises a central unit and a radiating point located remotely from the central unit and communicatively coupled to the central unit. The radiating point is configured to provide radio frequency signals to a coverage zone via one or more antennas. The system further comprises a radar sensor communicatively coupled to the radiating point and configured to capture image data in the coverage zone of the radiating point, wherein the radar sensor includes a plurality of transmitters and receivers coupled to an antenna array. One or more components of the system are configured to determine user detection data for users in the coverage zone based on the image data captured by the radar sensor and adjust the power consumption of the radiating point based on the user detection data.
說明書
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This application claims the benefit of U.S. Provisional Application Ser. No. 62/822,459, filed Mar. 22, 2019, and titled “DISTRIBUTED ANTENNA SYSTEM AND C-RAN SYSTEM UTILIZING SMART DETECTION OF SURROUNDING ENVIRONMENT,” which is hereby incorporated herein by reference.
Typical radio frequency distribution systems, such as distributed antenna systems or cloud radio access network (C-RAN) systems, are not aware of the distribution patterns of users for respective radiating points (for example, remote antenna units, radio points, access points, or the like) in the system. These systems allocate coverage using a central unit (for example, master unit, controller, or the like) in an inefficient manner that leads to excessive power consumption by the radiating points and ineffective coverage plans. A deployment of such a system with multiple active radiating points may also have further inefficiencies due to the real-world attenuation in an indoor scenario and overlapping coverage areas for radiating points. Systems without the capability to address these issues cause considerable time and expense for the installation team and higher operational and capital expenditure for the system operator.
權(quán)利要求
What is claimed is:1. A system, comprising:a central unit; a radiating point located remotely from the central unit and communicatively coupled to the central unit, wherein the radiating point is configured to provide radio frequency signals to a coverage zone via one or more antennas, wherein an operating frequency range of the radiating point is approximately between 380 MHz and 3.8 GHz; a radar sensor communicatively coupled to the radiating point and configured to capture image data in the coverage zone of the radiating point, wherein the radar sensor includes a plurality of transmitters and receivers coupled to an antenna array, wherein the radar sensor is configured to operate in a non-interfering frequency range compared to the operating frequency range of the radiating point; wherein one or more components of the system are configured to:determine user detection data for users in the coverage zone based on the image data captured by the radar sensor; and adjust power consumption of the radiating point based on the user detection data. 2. The system of claim 1 , wherein the radiating point is configured to autonomously adjust the power consumption of the radiating point based on the user detection data. 3. The system of claim 1 , wherein the central unit is configured to receive the image data or the user detection data from the radiating point and provide a control signal to the radiating point to adjust the power consumption of the radiating point. 4. The system of claim 1 , wherein the one or more components of the system are configured to adjust the power consumption of the radiating point by activating or deactivating at least one power amplifier of the radiating point. 5. The system of claim 4 , wherein the one or more components of the system are further configured to modify a speed of internal fans of the radiating point based on a number of active power amplifiers of the radiating point. 6. The system of claim 1 , wherein the radar sensor is configured to have approximately the same coverage area as the radiating point. 7. The system of claim 1 , wherein the user detection data includes a location of each detected user in the coverage zone of the radiating point. 8. The system of claim 7 , wherein the system is configured to modify a transmission power of the radiating point based on the location of the detected users in the coverage zone of the radiating point. 9. The system of claim 1 , wherein the central unit is further configured to dynamically allocate capacity to the radiating point based on the user detection data and other user detection data derived from image data captured by other radar sensors in coverage zones of different radiating points of the system. 10. The system of claim 9 , wherein the central unit is configured to prioritize distributing capacity to the radiating point when the user detection data indicates that a number of users in the coverage zone of the radiating point is higher than a number of users in a second coverage zone. 11. The system of claim 1 , wherein the radar sensor is integrated into a housing of the radiating point. 12. The system of claim 1 , wherein the radar sensor is mounted near the radiating point and communicatively coupled to the radiating point. 13. The system of claim 1 , wherein the system comprises a distributed antenna system, wherein the central unit is a master unit, wherein the radiating point is a remote antenna unit. 14. The system of claim 1 , wherein the system comprises a cloud radio access network system, wherein the central unit is a controller, wherein the radiating point is a radio point. 15. A method, comprising:determining a number of users in a coverage area of a radiating point of a system based on image data captured by a radar sensor, wherein the radiating point is located remotely from a central unit of the system and communicatively coupled to the central unit, wherein the radiating point is configured to provide radio frequency signals to a coverage zone via one or more antennas, wherein an operating frequency range of the radiating point is approximately between 380 MHz and 3.8 GHz, wherein the radar sensor includes a plurality of transmitters and receivers coupled to an antenna array, wherein the radar sensor is configured to operate in a non-interfering frequency range compared to the operating frequency range of the radiating point; and adjusting power consumption of the radiating point based on the number of users in the coverage area of the radiating point. 16. The method of claim 15 , wherein adjusting power consumption of the radiating point based on the number of users in the coverage area of the radiating point comprises at least one of:activating at least one power amplifier of the radiating point when a user is in the coverage area of the radiating point; deactivating the power amplifiers of the radiating point when no users are present in the coverage area of the radiating point; and adjusting a speed of internal fans of the radiating point based on a number of power amplifiers of the radiating point that are activated. 17. The method of claim 16 , further comprising waiting a predetermined delay period prior to deactivating the power amplifiers of the radiating point when no users are present in the coverage area of the radiating point. 18. The method of claim 15 , further comprising dynamically allocating capacity to the radiating point based on the number of users in the coverage area of the radiating point. 19. The method of claim 15 , further comprising:determining a position of detected users in the coverage area of the radiating point based on the image data captured by the radar sensor; determining a distance between the detected users in the coverage area and the radiating point; and adjusting power consumption of the radiating point based on a largest distance between a detected user and the radiating point.
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