Base Station Rectifier Efficiency Mapping for Dynamic Cell Load

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Solution Overview

Problem

The efficiency of rectifiers in base stations is not always optimal due to dynamic cell loads, leading to suboptimal power consumption and potential power shortages during high traffic peaks.

Innovation Solution

An apparatus and method that involve receiving measurement information from a power supply unit about rectifier efficiency and cell load measurements, determining a mapping between cell load and rectifier efficiency, and adjusting cell load or power supply unit configuration parameters to maintain optimal rectifier efficiency and power consumption.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Use of energy by moving object

If the rectifier operates without dynamic adjustment, then the device complexity is reduced, but the energy efficiency deteriorates under varying cell loads

Engineering Contradiction:
Improverectifier efficiencyVSAvoidcontrol system complexity
Core Design Contradiction:
Use of energy by moving objectVSDevice complexity

Solution Approach 1:

The patent implements dynamic adjustment of rectifier operating parameters based on real-time cell load measurements. The system continuously monitors cell load and adjusts rectifier configuration parameters dynamically to maintain optimal efficiency across varying traffic conditions, transforming a static system into an adaptive one.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The system employs feedback mechanisms by measuring cell load and using this information to adjust rectifier operating parameters. The control unit receives load measurements and feeds this information back to modify rectifier configuration, creating a closed-loop control system that optimizes efficiency based on actual operating conditions.

Inventive Principle:
Principle #23Feedback

2Reliability

If the rectifier operates without dynamic adjustment, then the ease of operation is improved, but the power supply reliability deteriorates during high traffic peaks

Engineering Contradiction:
Improvepower supply reliabilityVSAvoidoperation complexity
Core Design Contradiction:
ReliabilityVSEase of operation

Solution Approach 1:

The rectifier system performs self-adjustment by automatically monitoring its own operating conditions and modifying its configuration parameters without external intervention. The control unit autonomously detects when efficiency drops and adjusts parameters to restore optimal performance, enabling the system to self-optimize based on real-time feedback.

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

The system takes preliminary action by proactively adjusting rectifier parameters before power shortages occur. By continuously monitoring cell load and predicting efficiency trends, the system modifies operating parameters in advance to prevent power supply issues during high traffic peaks.

Inventive Principle:
Principle #10Preliminary action

3Adaptability or versatility

If the rectifier operates at fixed parameters, then the manufacturing precision requirements are reduced, but the adaptability to varying cell loads deteriorates

Engineering Contradiction:
Improveadaptability to cell loadVSAvoidparameter adjustment precision
Core Design Contradiction:
Adaptability or versatilityVSManufacturing precision

Solution Approach 1:

The patent changes operating parameters of the rectifier based on cell load conditions. The control unit adjusts configuration parameters such as switching frequencies, duty cycles, or component selections dynamically to adapt to varying traffic loads, allowing the same hardware to operate efficiently across different operating points.

Inventive Principle:
Principle #35Parameter changes

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 allows for dynamic adjustment of cell load and power supply unit parameters to maintain optimal rectifier efficiency, reducing energy consumption and preventing power shortages during peak traffic.

Implementation Method 1

A rectifier in a base station is an electronic component designed to convert alternating current (AC) into direct current (DC)

Methodology Applied
Scientific EffectRectification:

Data Source

PatentEP4542809A1Mapping between cell load and rectifier efficiency
Publication Date: 2025.04.23 NOKIA SOLUTIONS & NETWORKS OY
  • EP4542809A1 patent drawingFigure 1~2
  • EP4542809A1 patent drawingFigure 3
  • EP4542809A1 patent drawingFigure 4

AI summary

Disclosed is a method comprising receiving, from a power supply unit of a base station, measurement information for one or more parameters related to an efficiency of a rectifier of the power supply unit; receiving cell load measurements indicative of a cell load of the base station; determining, based on the measurement information and the cell load measurements, a mapping between the cell load and the efficiency of the rectifier; and adjusting, based on the mapping, at least one of: the cell load of the base station, or one or more configuration parameters of the power supply unit.