Access Point Selection Using Multi-Parameter Quality Analysis
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current methods for selecting access points in wireless local area networks rely solely on signal strength, which is unstable and inaccurate due to various factors, leading to potential communication interruptions and performance deterioration.
Innovation Solution
A method that evaluates and selects access points based on multiple quality parameters from various frames, including probe response frames, ANQP frames, LQM frames, and LQI frames, to ensure stable and accurate wireless link quality.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If signal strength of probe response frame is used as the only quality parameter to estimate wireless link quality, then the selection process is simple, but the accuracy and stability of quality estimation deteriorates
Solution Approach 1:
The patent changes from using a single parameter (signal strength) to using multiple parameters (signal strength, station count, channel utilization, available admission capacity) to estimate wireless link quality. This multi-parameter approach resolves the contradiction by improving measurement accuracy while maintaining operational simplicity through automated collection and processing of these parameters from probe response frames and ANQP queries.
2Ease of operation
If downlink signal strength is used to estimate overall link quality, then the measurement is easier, but the representativeness of overall communication link quality deteriorates
Solution Approach 1:
The patent makes the quality estimation process universal by incorporating both downlink and uplink quality indicators. Instead of relying solely on downlink signal strength, the system collects multiple parameters including uplink received signal strength, station count, channel utilization, and available admission capacity, which together provide a comprehensive representation of overall communication link quality for both directions.
3Speed
If access point selection is based on single parameter, then the selection speed is fast, but the stability of communication service deteriorates
Solution Approach 1:
The patent applies preliminary action by collecting and analyzing multiple quality parameters (signal strength, station count, channel utilization, available admission capacity) before making the access point selection decision. This preliminary multi-factor assessment ensures that the selected access point provides stable communication service, preventing future service interruptions while maintaining selection speed through efficient automated processing.
4Measurement precision
If multiple quality parameters from multiple frames are analyzed, then the accuracy of access point selection is improved, but the complexity of the selection process increases
Solution Approach 1:
The patent merges the collection and analysis of multiple quality parameters from multiple frames (probe response frames, ANQP query/response frames) into a unified selection process. By combining these parameters and processing them together through automated algorithms, the system achieves accurate access point selection while minimizing the perceived complexity for the user, as the entire process occurs transparently in the background.
Data Source
AI summary
The disclosure is related to a method of selecting one of access points based on multiple quality parameters in different frames. The method may include receiving a probe response frame from access points, analyzing quality parameters included in the received probe response frame to estimate wireless link quality of each access point, and selecting one of the access points based on the analysis result.