Wireless Station Dual-Access Point Association for Seamless High-Throughput LAN
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Solution Overview
Problem
Current wireless LAN systems face challenges in providing high-throughput and seamless services as users increase, particularly due to signal interference and handover delays when wireless stations move between access points.
Innovation Solution
A data receiving method in a wireless LAN system using multiple channels, where a wireless station determines signal level differences between access points and requests association with both points to ensure continuous service, allowing data reception from multiple access points within a dual zone with minimal interference.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If a wireless station associates with a single access point, then the system complexity is low, but the data throughput and service continuity deteriorate when users move or signal strength changes
Solution Approach 1:
The wireless station performs preliminary signal level measurements from multiple access points before making an association decision. By evaluating signal levels in advance and comparing them against threshold criteria, the station proactively selects the optimal access point(s) for association, ensuring high throughput from the outset while maintaining manageable complexity through predefined decision rules
Solution Approach 2:
The patent enables a wireless station to associate with multiple access points simultaneously (dual-zone association). By merging connections to multiple access points based on signal level criteria, the system achieves higher aggregate data throughput while the association management complexity is controlled through systematic signal level comparison and preset value-based decision making
2Adaptability or versatility
If a wireless station moves between access points, then the service area coverage is improved, but handover delays and service interruptions occur
Solution Approach 1:
The wireless station continuously monitors signal levels from multiple access points in advance before movement or signal degradation occurs. By having pre-evaluated signal level information available, the station can rapidly switch between access points without handover delays, as the decision criteria are already established through preliminary measurement and comparison
Solution Approach 2:
The patent maintains continuous service by enabling the wireless station to associate with multiple access points simultaneously or to rapidly switch between them based on real-time signal level comparisons. This ensures uninterrupted data reception as the station moves through the service area, eliminating handover delays through continuous monitoring and pre-established association criteria
3Productivity
If multiple access points are used simultaneously, then the data throughput and QoS are improved, but signal interference increases
Solution Approach 1:
The patent applies local quality by enabling dual-zone association only in specific geographic locations where the wireless station can receive strong signals from two different access points. By geographically constraining multi-access-point association to areas with favorable signal conditions (dual zones), the system achieves high throughput while minimizing signal interference through spatial separation of simultaneous connections
Data Source
AI summary
A data receiving method in a wireless LAN system using multiple channels includes: determining whether a difference value of signal levels of first and second access points is equal to or less than a preset value; transmitting an association request frame to the first and second access points according to the determination result; and receiving association response frames from the first and second access points.