Radio Wave Environment Analysis Using Scattering Body Volume Reduction
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Solution Overview
Problem
Current radio wave environment analysis methods are inefficient for wide areas, requiring extensive simulation calculations and time, especially when dealing with large facilities or outdoor spaces, due to the need for detailed data on scattering bodies and their interactions.
Innovation Solution
A radio wave environment analysis device and method that analyze the environment using a processor to simulate radio wave propagation with a scattering body volume reduction technique, terminating analysis when differences between initial and reduced volume analyses are within predetermined values, and virtually arranging secondary transmitters to correct and visualize the environment across block areas.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If detailed simulation calculations are performed for wide area radio wave environment analysis, then analysis accuracy is improved, but analysis time and computational resources are excessively consumed
Solution Approach 1:
The analysis area is divided into multiple block areas, and the scattering bodies are categorized into different volume groups (first group with larger volumes, second group with smaller volumes). This segmentation allows the system to process different regions with appropriate levels of detail, reducing overall computational burden while maintaining accuracy where needed.
Solution Approach 2:
The patent applies different analysis approaches to different spatial regions: block areas containing scattering bodies from the first volume group undergo detailed simulation calculations, while block areas with only second volume group scattering bodies use simplified calculations. This local quality approach ensures high accuracy in critical areas while reducing computational load in less critical areas.
2Productivity
If scattering body volume is reduced to speed up analysis, then analysis speed is improved, but analysis accuracy deteriorates
Solution Approach 1:
The patent changes the volume parameter of scattering bodies based on their spatial location and importance. Scattering bodies in different volume groups are processed with different volume thresholds, allowing the system to reduce computational complexity for smaller scattering bodies while maintaining detailed analysis for larger, more significant scattering bodies.
Solution Approach 2:
The patent applies partial action by performing detailed simulation calculations only for scattering bodies in the first volume group (larger volumes) and simplified calculations for the second volume group (smaller volumes). This selective approach ensures sufficient accuracy is achieved without the excessive computational cost of analyzing all scattering bodies at maximum detail.
3Measurement precision
If analysis is performed for entire wide area at high detail, then analysis accuracy is improved, but computational resources are excessively consumed
Solution Approach 1:
The patent segments both the geographical area into block areas and the scattering bodies into volume groups. This dual segmentation creates a hierarchical structure that reduces computational complexity by allowing different processing strategies for different segments, thereby reducing overall device complexity and resource requirements.
Solution Approach 2:
The patent applies local quality by matching the analysis methodology to the local characteristics of each block area. Areas with significant scattering bodies (first volume group) receive detailed analysis resources, while areas with minimal scattering bodies (second volume group only) receive simplified processing, optimizing resource allocation across the entire system.
Data Source
AI summary
A radio wave environment analysis device includes: a processor configured to analyze a radio wave environment corresponding to a radio wave transmitted from a wireless transmitter arranged within an area including observation points using a scattering body having a volume of an initial value or higher; and a memory configured to store the radio wave environment at each of observation points of an area where based on the analysis. The processor is configured to: analyze the radio wave environment using a scattering body having a volume reduced by a first predetermined value, and terminate the analysis if a difference between first and second radio wave environments at each observation point based on analyses using the scattering bodies before and after reduction of the volume, respectively, is equal to or lower than a second predetermined value.