Access Point EIRP Mask Provisioning via AFC
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Solution Overview
Problem
The increasing crowding in the 2.4 GHz and 5 GHz frequency bands for Wi-Fi networks, especially due to high bitrate streaming traffic, necessitates the use of the 6 GHz frequency band for improved Quality of Experience (QoE), but legacy 6 GHz wireless infrastructures pose interference challenges.
Innovation Solution
Implementing a method that uses an application-based site survey and data exchanges with network resources to determine the 3D location and equivalent isotropically radiated power (EIRP) of indoor IEEE 802.11 6 GHz access point devices, allowing them to operate in the 6 GHz frequency band without interfering with legacy systems through automated frequency coordination (AFC) and EIRP masking.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If access point devices operate in the 6 GHz frequency band, then network capacity and Quality of Experience are improved, but interference with legacy 6 GHz wireless infrastructures occurs
Solution Approach 1:
The system performs a site survey before deployment to identify legacy 6 GHz infrastructures in the vicinity. The AFC system receives location information and determines appropriate EIRP masks in advance, preventing interference before the access point device begins operation. This preliminary identification and configuration approach allows the system to enable 6 GHz operation while pre-configuring interference avoidance measures.
Solution Approach 2:
The system dynamically adjusts the EIRP (Equivalent Isotropically Radiated Power) parameters of the access point device based on the identified legacy infrastructures. The AFC system provides location-specific EIRP masks that modify the transmission power parameters, allowing the access point to operate in the 6 GHz band at reduced power levels in directions or areas where legacy systems are present, thereby enabling 6 GHz usage while adapting power parameters to avoid interference.
2Measurement precision
If location and power measurements are taken at multiple exterior points, then accurate virtual location and EIRP determination is achieved, but provisioning complexity increases
Solution Approach 1:
The AFC system acts as an intermediary that receives multiple exterior measurements from different locations, processes them to calculate the virtual location and EIRP, and returns the processed results to the access point device. This intermediary approach allows the system to perform complex multi-point measurements and calculations without requiring the access point device itself to handle the complexity, thereby achieving high measurement precision while managing provisioning complexity through centralized processing.
Solution Approach 2:
The system creates a virtual representation (virtual location and virtual EIRP) of the access point device's operational characteristics based on multiple exterior measurements. Instead of directly using the complex raw measurement data from multiple points, the system generates simplified virtual copies that capture the essential location and power information needed for AFC compliance, reducing the complexity of subsequent provisioning operations while maintaining measurement accuracy.
Data Source
AI summary
An enhanced network environment is provided by provisioning a device to utilize the 6 GHz frequency band. The device requires provisioning so as not to interfere with legacy systems. The provisioning includes obtaining exterior multiple fixed power measurements to obtain a virtualized location and a virtualized power level. The elevation is then modified based on an actual height from ground level of the device. The location of the device and a virtualized equivalent isotropically radiated power (EIRP) can then be sent to an automated frequency controller (AFC) resource to obtain an EIRP mask that can be used to provision the device so that the device can operate in the 6 GHz frequency band without causing interference with any other systems. Once provisioned, the device can be registered with the AFC resource.