Cloud DFS Super Master for Wi-Fi Channel Coordination
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Solution Overview
Problem
Current Wi-Fi and LTE-U networks face congestion and unreliable connections due to inefficient management of unlicensed spectrum, lack of coordination between devices, and issues like hidden nodes, radar detection delays, and underutilization of DFS spectrum, leading to interference and bandwidth limitations.
Innovation Solution
A cloud DFS super master system that employs multi-channel radar detection and in-service monitoring to dynamically select available channels, using a cloud-based intelligence engine and agility agents to coordinate channel selection across multiple devices, thereby enhancing bandwidth utilization and reducing interference.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a single access point performs DFS master services on one channel, then radar detection can be performed, but spectrum utilization is underutilized and hidden node problems occur
Solution Approach 1:
The patent segments the DFS master functionality across multiple access points, where each AP is responsible for specific channels. This allows parallel radar detection on multiple channels simultaneously, improving spectrum utilization while maintaining reliable detection coverage through coordinated operation among segmented APs.
Solution Approach 2:
The patent merges the DFS master capabilities of multiple access points into a coordinated system. By combining the detection resources of multiple APs and sharing radar detection information, the system achieves both high spectrum utilization and reliable radar detection, eliminating the hidden node problem through information sharing.
2Object-affected harmful factors
If DFS channel switching is performed upon radar detection, then radar interference is avoided, but long delays occur in channel switching
Solution Approach 1:
The patent performs preliminary actions by pre-identifying alternative channels and pre-coordinating channel switching plans among multiple access points. When radar is detected, the system can immediately execute the pre-planned channel switch without delay, as the alternative channel and switching coordination are already prepared.
Solution Approach 2:
The patent implements feedback mechanisms where access points continuously share channel availability and radar detection information. This real-time feedback allows the system to dynamically adjust channel assignments and rapidly coordinate switching to alternative channels when radar interference is detected, minimizing switching delays.
3Productivity
If multiple access points perform independent DFS detection, then more channels can be monitored, but false radar detections and interference increase
Solution Approach 1:
The patent introduces an intermediary coordination mechanism where access points share radar detection results and channel status information through a standardized protocol. This intermediary information exchange allows multiple APs to perform independent detection while cross-validating results, reducing false detections through consensus and preventing interference by coordinating channel usage.
Data Source
AI summary
The present invention relates to wireless networks and more specifically directed to device location confirmation based on a geolocation proxy. One embodiment includes an exemplary device location confirmation component configured to implement a device location confirmation algorithm using a cloud database configured to comprise device information including location information from the geolocation proxy. Another embodiment includes a device configured to operate in a reduced functionality radio frequency mode until a location can be confirmed through a trusted cloud service.