Client-Based Network Gap Detection During Access-Point Roaming
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Solution Overview
Problem
Existing network coverage detection methods relying on AP-to-AP communications fail to accurately identify coverage gaps experienced by client devices due to differences in form factor and RF characteristics, leading to insufficient network coverage for clients.
Innovation Solution
Client devices detect and report network coverage issues by exchanging low coverage thresholds with APs, requesting neighbor reports, performing AP discovery, and sending low coverage information to selected APs, enabling network providers to adjust device operations or positions to remedy coverage gaps.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If network coverage detection is performed using AP-to-AP communications, then network providers can monitor coverage, but the detection accuracy fails to reflect actual client device coverage gaps due to differences in form factor and RF characteristics
Solution Approach 1:
The patent introduces client devices as intermediary detectors that directly measure network coverage conditions. Instead of APs detecting coverage for other APs, client devices serve as the intermediary that actually experiences the coverage and reports back, providing accurate measurement of real-world coverage gaps while maintaining manageable system complexity through standardized reporting protocols.
Solution Approach 2:
Client devices perform self-detection of coverage gaps by monitoring their own connection quality and experiencing the actual RF environment. Each client device independently detects coverage issues and autonomously reports them to the network provider, eliminating the need for complex inter-AP detection infrastructure while achieving precise measurement of actual client coverage conditions.
2Measurement precision
If client devices autonomously detect and report coverage issues, then coverage gap identification accuracy improves, but communication overhead between clients and APs increases
Solution Approach 1:
The patent extracts only the essential coverage detection and reporting functionality from complex client devices, separating it from other device operations. Client devices perform autonomous detection but communicate only the critical coverage gap information to APs, minimizing communication overhead while maintaining high identification accuracy by transmitting only the extracted essential data rather than complete operational details.
Solution Approach 2:
The patent changes the reporting parameters from continuous detailed monitoring to event-driven reporting based on threshold violations. Client devices monitor coverage conditions continuously but only initiate communication when coverage gaps are detected, transforming the communication pattern from high-overhead continuous reporting to low-overhead event-based reporting, thereby reducing information loss while maintaining detection precision.
3Reliability
If network providers implement comprehensive coverage monitoring, then service quality improves, but system complexity and implementation cost increase
Solution Approach 1:
The patent implements a self-service monitoring architecture where client devices autonomously detect and report their own coverage conditions. This eliminates the need for complex centralized monitoring infrastructure, as each client device independently performs detection and communicates results to APs, thereby improving service quality through accurate real-world data while reducing overall system complexity.
Solution Approach 2:
The patent makes client devices serve multiple functions: they are both end-user equipment and coverage detection instruments. By utilizing the existing client devices for dual purposes (consumption and detection), the system achieves comprehensive monitoring coverage without adding dedicated detection infrastructure, thus improving service quality while avoiding increased system complexity.
Data Source
AI summary
Network coverage issue detection and, particularly, enabling a client device to detect and report network coverage issues including gaps may be provided. Detecting coverage issues can include associating to a first Access Point (AP) and exchanging a low coverage threshold with the first AP. A new AP is determined to roam to based on the low coverage threshold. In response, neighbor report is requested and received from the first AP. AP discovery signaling is performed, comprising scanning neighbor APs using the neighbor report, and selecting a second AP to roam to. The second AP is associated to, and low coverage information is sent to the second AP comprising information associated with the determination to roam to the new AP based on the low coverage threshold.