Radio Channel Environment Determination via Distance-Based Algorithm
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing techniques struggle to determine the environment of a radio channel accurately when the distance between wireless communication apparatuses varies, particularly with mobile objects like drones.
Innovation Solution
An information processing system that obtains distance and quality information between wireless communication apparatuses, decides an algorithm for determining the environment of the radio channel based on the distance information, and uses this algorithm to determine the environment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If signal quality threshold is used to determine rain condition, then rain detection is simple, but determination accuracy deteriorates when distance varies
Solution Approach 1:
The patent changes the determination parameter from fixed signal quality threshold to dynamic threshold that varies with distance. The system calculates distance between communication apparatuses and adjusts the rain detection threshold accordingly, allowing accurate environment determination across varying distances while maintaining operational simplicity
Solution Approach 2:
The patent introduces distance information as an intermediary parameter that mediates between signal quality and environment determination. By using distance as an intermediate variable, the system can adjust the interpretation of signal quality based on the actual separation between apparatuses, improving accuracy without complicating the overall determination process
2Device complexity
If fixed threshold algorithm is used, then determination process is simple, but reliability deteriorates with mobile objects
Solution Approach 1:
The patent transforms the determination algorithm from static to dynamic by continuously updating distance information and adjusting the rain detection threshold accordingly. This dynamic approach maintains reliability for mobile objects like drones while keeping the algorithm structure relatively simple through systematic parameter adjustment
3Measurement precision
If distance-based algorithm adjustment is implemented, then determination accuracy improves, but system complexity increases
Solution Approach 1:
The patent segments the determination process into distinct functional modules: distance calculation unit, threshold determination unit, and environment determination unit. This segmentation improves accuracy through systematic distance-based adjustment while managing complexity by organizing functions into separate, manageable components with clear interfaces
Data Source
AI summary
To determine the environment of a radio channel even in a case where the distance between wireless communication apparatuses varies, an information processing system (1) includes: obtaining means (11) for obtaining distance information that indicates a distance between a first wireless communication apparatus and a second wireless communication apparatus that directly perform communication with each other through a radio channel, and quality information that is information associated with quality of the communication; decision means (12) for deciding an algorithm for determining the environment of the radio channel with reference to the distance information; and determination means (13) for determining the environment of the radio channel by using the quality information and the algorithm decided by the decision means (12).