Wi-Fi 6 GHz Access Point Location Refinement for AFC Power
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Solution Overview
Problem
The increasing crowding in Wi-Fi frequency bands, particularly the 2.4 GHz and 5 GHz bands, due to high bitrate streaming traffic, necessitates the use of the 6 GHz frequency band for relief, but incumbent 6 GHz wireless infrastructures can restrict access point devices to low power indoor transmission levels without accurate location information, limiting the potential for higher power usage.
Innovation Solution
Access point devices utilize GPS information from client devices and Wi-Fi Location Fine Timing measurements to determine their location accurately, sending this information to an Automated Frequency Coordination management system to obtain a higher power allowance, allowing safe operation without interfering with incumbent systems.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If access point devices operate in the 6 GHz frequency band without accurate location information, then they can be restricted to low power indoor transmission levels, but this limits the potential for higher power usage and network performance
Solution Approach 1:
The system performs preliminary location determination using GPS and Wi-Fi Location Fine Timing measurements before the access point device begins transmission. This advance knowledge of the device's location allows the AFC management system to pre-assess interference risk and allocate appropriate power levels, enabling higher power operation when safe rather than defaulting to restrictive low power modes
Solution Approach 2:
The system implements a feedback loop where the access point device's location is continuously determined and reported to the AFC management system. The AFC system uses this feedback to dynamically adjust power allowances, providing higher power when the device is confirmed to be outside incumbent system coverage areas while maintaining low power restrictions when proximity to incumbents is detected
2Power
If access point devices use GPS and Wi-Fi Location Fine Timing measurements to determine location accurately, then they can obtain higher power allowance from AFC management system, but this increases device complexity and measurement requirements
Solution Approach 1:
The patent introduces an intermediary AFC management system that centralizes the complex location determination and power allocation logic. Rather than requiring each access point device to independently process GPS data, perform Fine Timing measurements, and calculate optimal power levels, the device simply reports its location capabilities and receives power allowances from the AFC system, which performs the complex computations remotely
Solution Approach 2:
The location determination system serves multiple functions: it provides accurate positioning for power allocation decisions, enables the access point device to identify its geographic context relative to incumbent systems, and facilitates communication with the AFC management system. This multi-functionality justifies the added complexity by delivering multiple benefits from a single measurement infrastructure
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This method enables access point devices to operate at higher power levels within the 6 GHz band without interfering with incumbent systems, enhancing network performance and user experience by optimizing power allocation based on precise location determination.
Implementation Method 1
receiving one or more global positioning system (GPS) measurements associated with the client device
Implementation Method 2
receiving one or more associated range measurements to the access point device via a wireless fidelity (Wi-Fi) Location Fine Timing functionality
Data Source
AI summary
An enhanced network environment is provided by configuring an indoor access point device in a region subject to AFC constraints to utilize the 6 GHz frequency band. The access point device requires configuration so as not to interfere with incumbent 6 GHz wireless infrastructures or systems. The configuring includes obtaining location information using Wi-Fi Location functionality to obtain one or more associated range measurements so as to determine an accurate access point device location. This location can then be sent as part of an AFC request message to an AFS management system to obtain a power allowance. Once configured, the access point device can be registered with the AFC resource and can operate at a power allowance that can be higher than the power allowance associated with the standard power or low power indoor.