Cloud DFS Super Master Radar Detector Location
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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, hidden nodes, hidden radar, false radar detections, and lack of spectrum-use coordination, leading to underutilization of DFS channels and interference between devices.
Innovation Solution
A cloud DFS super master system that determines the location of distributed radar detectors and selects available channels free of radar signals across multiple radio frequency channels, using a cloud-based intelligence engine to integrate data from multiple agility agents and external sources for dynamic channel selection and radar detection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a single DFS master (access point) is used to detect radar and manage channel availability, then the system is simple to implement, but it suffers from hidden nodes, hidden radar, false detections, and underutilization of DFS channels
Solution Approach 1:
The patent combines multiple radar detectors into a distributed network that shares detection data and coordinates channel selection. Multiple detectors work together to overcome the limitations of a single DFS master, reducing false detections and hidden radar issues while maintaining manageable system complexity through standardized communication protocols.
Solution Approach 2:
The patent enables client devices to perform radar detection in addition to their normal wireless communication functions. By making detectors universal components that serve both detection and communication purposes, the system achieves better radar coverage without requiring dedicated detection infrastructure.
2Ease of operation
If multiple devices operate independently in unlicensed spectrum, then each device has operational autonomy, but network congestion and interference increase
Solution Approach 1:
The patent implements feedback mechanisms where detectors share radar detection results and channel availability information with the cloud DFS super master and other network participants. This feedback enables coordinated channel selection that reduces congestion while preserving device autonomy through distributed decision-making.
Solution Approach 2:
The patent introduces a cloud-based DFS super master as an intermediary that coordinates between multiple autonomous devices. The super master aggregates detection data, determines overall channel availability, and provides recommendations to individual devices, enabling efficient spectrum utilization while maintaining operational independence.
3Productivity
If DFS channels are used to increase bandwidth availability, then spectrum utilization improves, but false radar detections and hidden radar issues cause channel unavailability
Solution Approach 1:
The patent merges detection data from multiple distributed detectors to establish consensus on radar presence. By combining observations from multiple locations and devices, the system reduces false detections and hidden radar issues, enabling more reliable DFS channel usage and improved bandwidth utilization.
Data Source
AI summary
This application relates to wireless networks and more specifically to systems and methods for determining the location of distributed radar detectors and selecting available channels free of radar signals from a plurality of radio frequency channels. One embodiment includes a cloud DFS super master and a radar detector communicatively coupled to the cloud DFS super master. The cloud DFS super master is programmed to receive the results of the scan for a radar signal from the radar detector and to generate integrated client device geolocation information. The cloud DFS super master is also programmed to determine a location for the radar detector based at least on the integrated client device geolocation information, and determine a radio channel free of the radar signal based at least on the location for the radar detector and the results of the scan for the radar signal.