Microwave Path Search Using Incremental Site Expansion
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Solution Overview
Problem
Determining optimal radio sites for wireless communication links between distant locations is challenging due to numerous potential sites, varying infrastructure, terrain, and RF propagation limitations, requiring a tool for efficient site selection that meets design objectives.
Innovation Solution
A microwave path search tool that analyzes potential sites within a buffer area to identify radio path trails, considering design goals and constraints, using incremental search area expansions and pre-run analysis of existing radio links to determine optimal site combinations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a large number of potential radio sites are considered to ensure optimal link performance, then the quality and reliability of the wireless communication link is improved, but the computational complexity and time required to analyze all permutations of sites increases significantly
Solution Approach 1:
The patent divides the large set of potential radio sites into multiple smaller groups or clusters based on geographic location, terrain characteristics, and infrastructure availability. This segmentation allows the system to analyze permutations within each group separately rather than analyzing all sites simultaneously, reducing computational complexity while maintaining link performance quality.
Solution Approach 2:
The system performs preliminary analysis and filtering of potential radio sites before conducting full permutation analysis. Sites are pre-evaluated based on basic criteria such as terrain suitability, infrastructure availability, and geographic positioning. This preliminary action eliminates clearly unsuitable sites early in the process, reducing the number of sites that require detailed permutation analysis.
2Measurement precision
If comprehensive analysis of terrain, clutter, and RF propagation limitations is performed for all potential sites, then the accuracy of site selection is improved, but the time and computational resources required increase
Solution Approach 1:
The patent applies different levels of analysis depth to different potential sites based on their local characteristics. Sites in favorable locations with good terrain and infrastructure receive more detailed analysis, while sites in clearly unsuitable locations receive less intensive analysis. This local quality approach ensures high accuracy for promising sites while reducing overall analysis time.
Solution Approach 2:
The system performs partial analysis on all potential sites initially, then performs excessive (more detailed) action only on sites that show promise after the initial screening. Not all sites receive the full comprehensive analysis, but enough analysis is performed on selected sites to ensure accurate site selection.
3Reliability
If multiple permutations of radio sites are evaluated to find optimal configurations, then the quality of the wireless link is improved, but the infrastructure build costs increase due to the need to deploy and test multiple site combinations
Solution Approach 1:
The system performs virtual permutation analysis and simulation before actual infrastructure deployment. Multiple site combinations are evaluated through computational modeling that predicts link performance based on terrain, clutter, and propagation characteristics. This preliminary virtual testing identifies the most promising site permutations, allowing the project to proceed with deploying only the optimal configuration rather than building and testing multiple physical installations.
Data Source
AI summary
A microwave path search tool for finding radio path trails between a source site at a first geographic location and a target site at a second geographic location, wherein radio paths constituting a radio path trail meet certain radio link design goals subject to certain design constraints. The tool receives information relating to the source and target sites and sites within a buffer region around the source and target sites. The tool also receives path profile computation information such as data representing the terrain and clutter in the buffer region. The tool uses this information to analyze potential radio paths and identify radio paths forming a radio link between the source and target sites that best meets the radio link design goals. The tool can also perform pre-run analysis and use incrementally increasing linear or segmented expansions of search areas within the buffer region to facilitate the radio path search.