Client-Location AFC for Accurate 6 GHz Frequency Coordination
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Solution Overview
Problem
Current automated frequency coordination systems for 6 GHz communications in wireless networks fail to accurately account for the location of moving clients, leading to potential interference due to delta between the reported access point location and the actual client location, especially in scenarios involving fast-moving nodes like trains.
Innovation Solution
Implement a client-centric automated frequency coordination mechanism that determines the physical location of mobile clients and performs frequency lookups based on their actual location, incorporating additional information such as antenna details and beamforming parameters to optimize frequency selection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If automated frequency coordination uses the access point's reported location for frequency lookup, then the system operation is simple, but the frequency selection accuracy deteriorates for mobile clients far from the access point
Solution Approach 1:
The patent introduces the mobile client's actual location as an intermediary element between the access point's reported location and the frequency selection process. Instead of directly using the access point's location for AFC database lookups, the system now uses the client's actual geographic position, which more accurately reflects where the 6 GHz signals are actually being transmitted and received, thereby resolving the inaccuracy for mobile clients
Solution Approach 2:
The patent changes the key parameter used for frequency coordination from the access point's reported location to the mobile client's actual location. This parameter change ensures that the AFC database queries are performed using the location that truly matters for determining appropriate frequencies, i.e., where the client is actually receiving signals rather than where the access point thinks it is
2Device complexity
If the system uses the access point's static location for frequency coordination, then the coordination process is straightforward, but interference increases for fast-moving clients
Solution Approach 1:
The mobile client's actual location serves as a mediating factor that bridges the gap between the static access point and the moving client. By using this intermediary location information, the system can perform frequency coordination that accounts for the client's movement, thereby reducing interference without significantly complicating the overall coordination process
Solution Approach 2:
The system performs preliminary frequency coordination actions based on the client's current location before interference occurs. By continuously updating the frequency selection based on the client's actual position, the system proactively prevents interference issues rather than reacting to them after they occur
Data Source
AI summary
In one embodiment, a device determines a physical location of a mobile client of wireless network. The device performs a frequency lookup for the mobile client from an AFC service using the physical location of the mobile client. The device selects a frequency to be used by the mobile client based on the frequency lookup. The device causes the mobile client to use the frequency to communicate with the wireless network.