Remote Antenna Unit Power Management Prioritization
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Solution Overview
Problem
In distributed antenna systems, remote antenna units often face power management challenges due to the varying power demands of RF communications and digital data services modules, which can exceed the available power supply, leading to inadequate power distribution and potential service disruptions.
Innovation Solution
A power management system for remote antenna units that determines an available power budget and prioritizes power distribution to ensure that critical services are maintained by allocating power to RF communications and digital data services modules based on their priority, using a controller to enable or disable power to external devices connected through powered ports.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If power is provided to all modules in remote antenna units, then service functionality is improved, but power consumption exceeds available power supply
Solution Approach 1:
The patent implements dynamic power management by enabling or disabling power to external devices based on real-time power budget conditions. The system monitors available power and dynamically adjusts power distribution to RF communications modules and digital data services modules, ensuring critical services maintain power while non-critical services may be powered down when power is scarce.
Solution Approach 2:
The patent applies different power allocation strategies to different modules based on their criticality. Critical RF communications modules receive priority power allocation, while digital data services modules receive power only when sufficient power budget remains. This differentiated approach ensures essential services function while managing overall power consumption within available supply.
2Adaptability or versatility
If power is allocated to external devices through powered ports, then device connectivity is improved, but available power for critical services is reduced
Solution Approach 1:
The system dynamically controls power allocation to external devices based on real-time monitoring of power budget and service requirements. When power budget is sufficient, external devices receive power to maintain connectivity. When power becomes constrained, the system dynamically disables power to external devices while preserving power for critical RF communications services, thus maintaining reliability under varying power conditions.
Solution Approach 2:
The patent implements a feedback mechanism where the system continuously monitors the power budget and service status, then adjusts power allocation accordingly. The controller receives feedback on available power and service requirements, and responds by enabling or disabling power to external devices through powered ports, ensuring critical services are never compromised while maximizing device connectivity when power permits.
3Loss of energy
If power management control is implemented, then power distribution efficiency is improved, but system complexity increases
Solution Approach 1:
The patent implements a self-service power management system where the remote antenna unit autonomously monitors its own power budget and makes decisions about power allocation without requiring external control. The controller within the RAU automatically enables or disables power to various modules and external devices based on real-time power conditions, eliminating the need for complex external power management infrastructure while improving power distribution efficiency.
Data Source
AI summary
Power management for remote units in a distributed communication system. Power can be managed for a remote unit configured to power modules and devices that may require more power to operate than power available to the remote unit. For example, the remote unit may be configured to include power-consuming remote unit modules to provide distributed antenna system-related services. As another example, the remote unit may be configured to provide power through powered ports in the remote unit to external power-consuming devices. Depending on the configuration of the remote unit, the power-consuming remote unit modules and/or external power-consuming devices may demand more power than is available at the remote unit. In this instance, the power available at the remote unit can be distributed to the power-consuming modules and devices based on the priority of services desired to be provided by the remote unit.