Adaptive EMF Grid Sizing for Network Device Coverage Control

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Solution Overview

Problem

The current network devices face significant processing pressure when simultaneously monitoring a large number of grids with fine division for electromagnetic field (EMF) strength, which affects their normal operation and communication quality.

Innovation Solution

The network device adaptively adjusts the size of grids by combining adjacent grids with low EMF strength and splitting grids with high EMF strength, allowing for flexible adjustment of spatial domain resolution to reduce processing pressure while improving EMF strength control precision.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Measurement precision

If the network device divides the signal coverage area into a large number of fine grids for EMF strength monitoring, then the EMF strength control precision is improved, but the processing pressure on the network device increases significantly

Engineering Contradiction:
ImproveEMF strength control precisionVSAvoidprocessing pressure
Core Design Contradiction:
Measurement precisionVSDevice complexity

Solution Approach 1:

The signal coverage area is divided into multiple grids, but the granularity is adaptively adjusted. High-precision monitoring is applied only to areas requiring it, while other areas use coarser grids, thus reducing the total number of grids while maintaining necessary monitoring precision.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

Different grid granularities are applied to different spatial locations based on local EMF strength characteristics. Areas with high EMF strength or near the network device use finer grids for precise monitoring, while areas with low EMF strength use coarser grids, optimizing the balance between precision and processing load.

Inventive Principle:
Principle #3Local quality

2Productivity

If the network device uniformly increases EMF strength across all grids to improve communication quality, then the communication capability is enhanced, but the EMF strength may exceed regulatory limits in certain areas

Engineering Contradiction:
Improvecommunication qualityVSAvoidEMF strength compliance
Core Design Contradiction:
ProductivityVSObject-affected harmful factors

Solution Approach 1:

The network device adjusts EMF strength locally for each grid based on its specific characteristics and regulatory requirements. Instead of uniform adjustment, each grid receives tailored power allocation to maximize communication quality while ensuring compliance with EMF strength limits in all areas.

Inventive Principle:
Principle #3Local quality

Solution Approach 2:

The network device dynamically adjusts transmit power parameters for different grids based on monitored EMF strength values. When EMF strength approaches regulatory limits in certain grids, the power is reduced in those specific areas while maintaining or increasing power in other grids where it is safe to do so, thus optimizing overall communication quality within compliance constraints.

Inventive Principle:
Principle #35Parameter changes

Data Source

PatentUS12395250B2EMF strength control method and communication apparatus
Publication Date: 2025.08.19 HUAWEI TECH CO LTD
  • US12395250B2 patent drawing
  • US12395250B2 patent drawing
  • US12395250B2 patent drawing

AI summary

A network device obtains EMF strength of each grid in a first grid group. The first grid group includes M grids obtained by dividing a signal coverage area of the network device, and Mis an integer greater than 1. The network device determines a second grid group based on EMF strength of the M grids. The second grid group includes at least a first grid and a second grid, a coverage area of the first grid is greater than that of the second grid, and EMF strength of the first grid is lower than EMF strength of the second grid. The network device monitors EMF strength of a coverage area of the second grid group based on the second grid group, to adjust the EMF strength of the coverage area of the second grid group.