Radio Unit PA Power Allocation Across PV and DC Sources
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Solution Overview
Problem
Current wireless communication networks face challenges in reducing power consumption, particularly in 5G radio units, where the use of primary Direct Current (DC) power limits energy savings, and there is a need for more environmentally friendly energy solutions.
Innovation Solution
A method and apparatus that control the allotment of power input between Power Amplifiers (PAs) in a radio unit by integrating Direct Current (DC) power and Photovoltaic (PV) power, using PV power when available to reduce energy consumption and environmental impact.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Use of energy by moving object
If primary DC power is used to supply Power Amplifiers in radio units, then reliable power supply is ensured, but power consumption cannot be reduced and environmental friendliness is compromised
Solution Approach 1:
The patent combines multiple power sources (DC power from the grid and PV power from photovoltaic panels) into a hybrid power supply system. The radio unit can draw power from either source or both simultaneously, allowing the system to reduce reliance on conventional DC power while maintaining reliable operation through automatic source selection and switching mechanisms.
2Productivity
If more 5G radio equipment is deployed to increase capacity and speed, then network performance is improved, but total power consumption increases
Solution Approach 1:
The patent changes the power supply parameters by introducing PV power as an alternative to conventional DC power. By adjusting the power mix ratio between DC and PV sources based on availability, traffic load, and environmental conditions, the system can support increased network capacity while reducing the carbon footprint and overall energy consumption of deployed radio equipment.
3Loss of energy
If PV power is integrated into radio units, then environmental sustainability is improved, but system complexity increases
Solution Approach 1:
The patent implements self-service mechanisms where the radio unit automatically manages its hybrid power supply. The system includes automatic power source detection, switching control, and load balancing capabilities that operate autonomously without requiring complex external management infrastructure, thereby reducing operational complexity while improving energy efficiency.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This approach enables more efficient energy use by prioritizing renewable PV power, reducing noise generation, and lowering power consumption in radio units, thereby enhancing environmental sustainability and operational efficiency.
Implementation Method 1
A method and apparatus that control the allotment of power input between Power Amplifiers (PAs) in a radio unit by integrating Direct Current (DC) power and Photovoltaic (PV) power
Data Source
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AI summary
A method for controlling allotment of power input between at least two PAs of a radio unit for data communication in a wireless communications network is provided. The radio unit has access to Direct Current (DC) power and Photovoltaic (PV) power. The amount of power to be transmitted out from each respective PA out of the at least two PAs established (401 ), and information related to the amount of PV power available is obtained (402). The allotment of power input of DC power and PV power between the at least two Pas is then controlled (404) based on the established amount of power to be transmitted out from each respective PA out of the at least two PAs, and the obtained information related to the amount of PV power available.