WLAN Coverage Hole Detection via Mobile Device Diagnostics
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Solution Overview
Problem
Existing WLAN systems face challenges in detecting and addressing coverage holes, which are areas where mobile communication devices cannot reliably connect, due to structural and object-related issues, and these problems are difficult to identify and adapt to in real-time without specialized equipment.
Innovation Solution
The implementation of a system that uses IEEE 802.11k messages and behaviors to enable mobile communication devices to detect and report coverage holes by sending diagnostic information to access points, which are then logged and visualized on a site floor plan, allowing for real-time detection and adaptation without requiring specialized equipment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If traditional site survey methods are used to detect coverage holes, then coverage holes can be identified during initial installation, but the process is time-consuming and cannot detect holes caused by later environmental changes
Solution Approach 1:
The system enables mobile communication devices to automatically detect and report coverage holes without requiring manual site surveys. The mobile devices themselves perform the detection function by monitoring WLAN signal quality and reporting anomalies to the system, eliminating the need for specialized equipment and manual traversal of the premises.
Solution Approach 2:
The system transitions from static initial site surveys to dynamic real-time detection. Mobile communication devices continuously monitor WLAN coverage and report coverage holes as they occur, allowing the system to adapt to environmental changes and provide ongoing coverage assessment rather than a one-time check.
2Measurement precision
If specialized measuring equipment is used for site surveys, then coverage holes can be detected, but the equipment requirement increases system complexity and cost
Solution Approach 1:
The system repurposes mobile communication devices, which already exist in the environment for general communication purposes, to perform the additional function of coverage hole detection. This eliminates the need for specialized measuring equipment by making the ubiquitous mobile devices serve multiple functions.
Solution Approach 2:
The mobile communication devices perform their own diagnostic function by monitoring their connection quality to WLAN access points and reporting coverage issues. The devices serve themselves by detecting their own coverage problems without requiring external specialized equipment.
3Adaptability or versatility
If manual site surveys are conducted, then initial coverage holes can be mapped, but the system cannot adapt to later environmental changes or provide real-time detection
Solution Approach 1:
The system implements continuous real-time monitoring of WLAN coverage through mobile communication devices that constantly report their connection status. This ongoing detection provides continuous feedback about coverage holes as they occur, rather than relying on periodic manual surveys, enabling immediate detection and response to coverage issues.
Solution Approach 2:
The system establishes a feedback loop where mobile communication devices monitor WLAN signal quality and automatically report coverage holes to the system. This feedback mechanism enables the system to detect and respond to coverage issues in real-time, adapting to environmental changes as they occur.
Data Source
AI summary
Apparatus and method for coverage hole detection in a wireless local area network (WLAN) using a mobile communication device. The method includes a first step of providing a plurality of access points distributed within the WLAN and at least one mobile communication device operable within the WLAN. A next step includes downloading triggers for respective coverage measurement conditions to the at least one associated mobile communication device from an associated access point. A next step includes detecting a coverage measurement condition by the at least one mobile communication device that activates one of the triggers, whereupon a next step includes sending a coverage measurement indicating the triggered condition from the at least one mobile communication device to an associated access point, which forwards a coverage incident report to a Central Report Manager.