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Adaptive voltage modification (AVM) controller for mitigating power interruptions at radio frequency (RF) antennas

專利號
US10868471B2
公開日期
2020-12-15
申請人
T-Mobile USA, Inc.(US WA Bellevue)
發(fā)明人
Steve Fischer
IPC分類
H02M3/335; H01Q1/00; G01R27/02; G05F1/62
技術(shù)領(lǐng)域
avm,rru,voltage,power,controller,may,dc,antennas,boost,metadata
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.

說明書

At 406, the AVM controller may determine whether the voltage of the power transmission at the RRU is within a predetermined voltage range. The predetermined voltage range may be set by an operator of the AVM controller or telecommunications network, and further correspond to a voltage range required to maintain a QoS in voice and data communications via the RF antennas.

At 408, the AVM controller may determine that the voltage of the power transmission at the RRU is less than the predetermined voltage range. In doing so, the AVM controller may use voltage compensation tables to determine a voltage-boost that increases the voltage of the power transmission at the RRU to a voltage amount that is within the predetermined voltage range.

At 410, the AVM controller may generate and deploy a voltage modification control signal to a potential transformer that causes the potential transformer to step-up a voltage of the power transmission at the potential transformer to a voltage amount that is within the predetermined voltage range.

FIG. 5 illustrates an AVM controller process for generating an analysis model to preemptively infer power interruption events that impact QoS parameters associated with signal data (i.e. voice and data communications) transmitted by the RF antennas. The power interruptions may include a power disruption or a power surge, albeit due to network congestion, base-station hardware or base-station software failure.

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