Adaptive voltage modification (AVM) controller for mitigating power interruptions at radio frequency (RF) antennas
地域：
WA
WA Bellevue
摘要
This disclosure describes techniques to identify and mitigate an effect of a power interruption that impacts the operation of Radio Frequency (RF) antennas associated with a telecommunications network. More specifically, an Adaptive Voltage Modification (AVM) controller is described that is configured to monitor and detect a change in voltage that occurs during a power transmission from a Direct Current (DC) power source to a Remote Radio Unit (RRU). A power interruption may include a power disruption or a power surge. The AVM controller may be configured to cause a potential transformer that is coupled between the DC power source and the RRU to incrementally step-up or step-down the voltage of a power transmission from the DC power source. In this way, the AVM controller may preemptively mitigate an impact of a power interruption on Quality of Service (QoS) parameters associated with signal data transmitted by the RF antennas.
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This application claims priority to a commonly owned U.S. Provisional Patent Application No. 62/634,674 filed on Feb. 23, 2018, and titled “Adaptive Voltage-boost Controller for Radio Frequency (RF) Antennas,” which is herein incorporated by reference in its entirety.
The popularity of commercial wireless communication services (e.g. wireless telephony, wireless network access, and email services) has substantially increased during recent years. In many cases, users are increasingly relying on these services for both personal and business communications. Typically, telecommunications service providers rely on cell sites, such as base station nodes, to facilitate communications services and provide a reliable operation to their consumer base. However, at times, a cell site may unexpectedly experience power interruptions that impact a quality of communication services. Power interruptions may include power surges or power disruptions, albeit due to network congestion, or cell site hardware or software failures.
In some examples, a telecommunications service provider may be subject to significant financial expenditure as part of dealing with power interruptions, particularly when technicians are required to identify, mitigate, and/or repair the cause or effect of a power interruption.
The detailed description is set forth with reference to the accompanying figures. In the figures, the left-most digit(s) of a reference number identifies the figure in which the reference number first appears. The use of the same reference numbers in different figures indicates similar or identical items or features.
權(quán)利要求
The invention claimed is:1. A system comprising:one or more processors; memory coupled to the one or more processors, the memory including one or more modules that are executable by the one or more processors to: determine whether a first voltage of a power transmission at a Remote Radio Unit (RRU) is greater than or equal to a predetermined voltage threshold, the power transmission being sourced from a Direct Current (DC) power source that is coupled to the RRU; in response to the first voltage being less than the predetermined voltage threshold, calculate a voltage boost that increases the first voltage to a second voltage, the second voltage being at least equal to the predetermined voltage threshold; determine an incremental voltage boost that is required from a potential transformer over a predetermined time period to step up the first voltage to the second voltage; generate a voltage modification control signal for transmission to the potential transformer, the voltage modification control signal to cause the potential transformer to initiate the incremental voltage boost, the incremental voltage boost being repeated at predetermined time intervals and for a predetermined number of cycles that is required to increase the first voltage at the RRU to the second voltage; and transmit the voltage modification control signal to the potential transformer. 2. The system of claim 1 , wherein the second voltage is associated with the power transmission at the DC power source, and wherein the one or more modules are further executable by the one or more processors to:monitor, via one or more sensors, the first voltage at the RRU and the second voltage at the DC power source, and wherein, to calculate the voltage boost corresponds to determining a difference between the first voltage and the second voltage. 3. The system of claim 1 , wherein the one or more modules are further executable by the one or more processors to:receive an indication of an external event that impacts a current operation of one or more RF antennas associated with the RRU; and determine that an additional voltage boost is required to mitigate an impact to the current operation of the one or more RF antennas, based at least in part on the indication, and wherein to calculate the voltage boost further includes the additional voltage boost. 4. The system of claim 1 , wherein the one or more modules are further executable by the one or more processors to:retrieve, from a data-store, historical power transmission data associated with the DC power source and the RRU over a predetermined time interval; and generate an analysis model associated with power transmissions from the DC power source to the RRU, based at least in part on the historical power transmission data, and wherein, to calculate the voltage boost is further based at least in part on a correlation of the first voltage and the second voltage with data-points of the analysis model. 5. The system of claim 4 , wherein the one or more modules are further executable by the one or more processors to:retrieve, from the data-store, historical environmental metadata that corresponds to the historical power transmission data, and wherein to generate the analysis model is further based at least in part on the historical environmental metadata. 6. The system of claim 1 , wherein the one or more modules are further executable by the one or more processors to:capture current environmental metadata associated with the DC power source and the RRU, and wherein, to calculate the voltage boost is further based at least in part on the current environmental metadata. 7. The system of claim 1 , wherein the one or more modules are further executable by the one or more processors to:identify a step-up voltage rate that is associated with the potential transformer, the step-up voltage rate corresponding to an incremental voltage boost that occurs over a predetermined time period, and wherein, to determine the incremental voltage boost is based at least in part on the step-up voltage rate. 8. The system of claim 1 , wherein the one or more modules are further executable by the one or more processors to:retrieve, from a data-store, historical voltage boost data associated with historical instances of operating the DC power source and the RRU; and wherein, to calculate the voltage boost is based at least in part on the historical voltage boost data. 9. The system of claim 1 , wherein the one or more modules are further executable by the one or more processors to:determine a first voltage loss that occurs between the DC power source and the potential transformer and a second voltage loss that occurs between the potential transformer and the RRU, and wherein to calculate the voltage boost is further based at least in part on the first voltage loss and the second voltage loss. 10. The system of claim 9 , wherein to determine the first voltage loss and the second voltage loss is based at least in part on an electrical resistance of cables between the DC power source, the potential transformer, and the RRU. 11. The system of claim 9 , wherein the first voltage loss and the second voltage loss are determined via one or more sensors at the DC power source, the potential transformer, and the RRU, the one or more sensors including a hall effect sensor that unobtrusively measures voltage in cables between the DC power source, the potential transformer, and the RRU. 12. A computer-implemented method, comprising:under one or more processors: monitoring, via one or more sensors, a first power transmission that is delivered from a Direct Current (DC) power source and a second power transmission that is delivered to a Remote Radio Unit (RRU) that is coupled to the DC power source; analyzing sensor data from the one or more sensors to determine a first voltage of the first power transmission to a second voltage of the second power transmission; determining that the first voltage is less than a predetermined voltage threshold that is to support the RRU; calculating a voltage boost that increases the second voltage to at least the predetermined voltage threshold; determining an incremental voltage boost that is required from a potential transformer over a predetermined time period to step up the first voltage to the second voltage; generating a voltage modification control signal for transmission to the potential transformer that causes the potential transformer to initiate the incremental voltage, the incremental voltage boost being repeated at predetermined time intervals and for a predetermined number of cycles that is required to increase the first voltage to the second voltage; and deploying the voltage modification control signal to the potential transformer. 13. The computer-implemented method of claim 12 , further comprising:capturing, current environmental metadata associated with the DC power source and the RRU, and retrieving, from a data-store, historical power transmission data and corresponding historical environmental metadata that is associated with the DC power source and the RRU; generating an analysis model associated with power transmissions from the DC power source to the RRU, based at least in part on the historical power transmission data and the corresponding historical environmental metadata; and analyzing, via the analysis model, the current environmental metadata and the sensor data to calculate the voltage boost. 14. The computer-implemented method of claim 13 , wherein the current environmental metadata further includes at least one of a current time of day or a current day of week, andwherein, calculating the voltage boost via the analysis model is further based at least in part on the current time of day or the current day of week. 15. One or more non-transitory computer-readable media storing computer-executable instructions that, when executed on one or more processors, cause the one or more processors to perform acts comprising:determining a first voltage of a power transmission at a Remote Radio Unit (RRU), the power transmission being delivered from a Direct Current (DC) power source that is coupled to the RRU; determining that the first voltage is less than a predetermined voltage threshold, the predetermined voltage threshold corresponding to a power transmission threshold for operation of one or more RF antennas associated with the RRU; calculating a voltage boost that increases the first voltage to a second voltage, the second voltage corresponding to at least the predetermined voltage threshold; determining an incremental voltage boost that is required from a potential transformer over a predetermined time period to step up the first voltage to the second voltage; and generating and deploying a voltage modification control signal for transmission to the potential transformer, the voltage modification control signal to cause the potential transformer to initiate the incremental voltage boost, the incremental voltage boost being repeated at predetermined time intervals for a predetermined number of cycles that is required to increase the first voltage at the RRU to the second voltage. 16. The one or more non-transitory computer-readable media of claim 15 , further storing instructions that perform acts comprising:measuring, at the DC power source, an initial voltage of the power transmission from the DC power source; retrieving, from a data-store, a voltage compensation table that correlates a voltage loss due to an electrical resistance of cables between the DC power source, the potential transformer, and the RRU; and calculating the first voltage at the RRU, based at least in part on the voltage compensation table and the initial voltage. 17. The one or more non-transitory computer-readable media of claim 15 , further storing instructions to perform acts comprising:capturing current environmental metadata associated with the DC power source and the RRU, the current environmental metadata including one or more indications of network congestion, network impediments, DC power source impediments, or meteorological events likely to impact a current operation of the one or more RF antennas; retrieving, from a data-store, historical power transmission data and corresponding environmental metadata that is associated with the DC power source and the RRU; andgenerating an analysis model associated with power transmissions from the DC power source to the RRU, based at least in part on the historical power transmission data and the corresponding environmental metadata, and wherein, calculating the voltage boost is based at least in part on a correlation of the current environmental metadata and data-points of the analysis model. 18. The one or more non-transitory computer-readable media of claim 17 , further storing instructions to perform acts comprising:inferring that an inferred network congestion is likely to impact a future operation of the one or more RF antennas, based at least in part on the correlation of the current environmental metadata and the data-points of the analysis model;determining an adjusted power transmission threshold for the RRU that accommodates the future operation of the one or more RF antennas during the inferred network congestion; and modifying the predetermined voltage threshold based at least in part on the adjusted power transmission threshold. 19. The one or more non-transitory computer-readable media of claim 18 , further storing instructions to perform acts comprising:identifying a step-up voltage rate that is associated with the potential transformer, the step-up voltage rate corresponding to an incremental voltage boost that occurs over a one-minute period; and determining a voltage boost reaction time that is required to increase the first voltage to the second voltage, based at least in part on the step-up voltage rate of the potential transformer, and wherein, the voltage modification control signal further initiates the voltage boost at the potential transformer at a point-in-time that occurs prior to the inferred network congestion by a time interval equal to or greater than the voltage boost reaction time. 20. The one or more non-transitory computer-readable media of claim 15 , wherein the voltage boost is calculated to accommodate a first voltage loss due to an increase in power transmission requirements for operation of the one or more RF antennas, and a second voltage loss due to electrical resistance of cables between the DC power source, the potential transformer, and the RRU.
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