Automated Frequency Coordination for 6 GHz Backhaul Interference
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Solution Overview
Problem
The growing usage of wireless devices and services in unlicensed spectrum leads to congestion issues due to a lack of new mid-band unlicensed spectrum allocations, particularly in the 6 GHz band, where existing regulations aim to prevent interference with established microwave systems by restricting unlicensed devices to indoor use and lower power operations without automated frequency coordination (AFC) in some sub-bands.
Innovation Solution
The implementation of Automated Frequency Coordination (AFC) systems that utilize GPS, cellular triangulation, and Wi-Fi location determination features to determine the geographic location of devices and manage frequency usage, ensuring unlicensed devices operate within exclusion zones without causing interference, and dynamically adjust power levels and channel assignments based on proximity to microwave paths.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If unlicensed devices are allowed to operate in the 6 GHz band, then bandwidth availability is improved, but interference to microwave systems may occur
Solution Approach 1:
An Automated Frequency Coordination (AFC) system is introduced as an intermediary between unlicensed devices and microwave systems. The AFC system receives location information from unlicensed devices, queries a database for exclusion zones, and provides frequency coordination decisions to prevent interference while enabling bandwidth usage.
Solution Approach 2:
The system performs preliminary actions by determining device locations and checking against exclusion zones before unlicensed devices transmit in the 6 GHz band. This pre-screening process ensures that devices only operate in frequencies and locations that will not cause harmful interference to microwave systems.
2Object-affected harmful factors
If AFC systems are implemented to prevent interference, then protection of microwave systems is improved, but system complexity increases
Solution Approach 1:
The AFC system operates autonomously by automatically receiving location information from unlicensed devices, querying the exclusion zone database, and making frequency coordination decisions without requiring manual intervention. This self-service approach manages complexity through automation rather than human operation.
Solution Approach 2:
The AFC system performs multiple functions including location determination, database querying, frequency coordination, and interference prevention through a single integrated platform. This multi-functionality consolidates complexity into one universal system rather than requiring separate mechanisms for each function.
3Object-affected harmful factors
If location determination methods are used to manage device proximity, then interference prevention is improved, but measurement difficulty increases
Solution Approach 1:
GPS and Wi-Fi location determination systems serve as intermediaries that automatically calculate device locations and proximity to exclusion zones. These intermediary systems handle the complex measurement and calculation tasks, presenting simplified location data to the AFC system without requiring direct measurement by the AFC components.
Data Source
AI summary
Methods, systems, and computer readable media described herein can be operable to provide a 6 GHz backhaul within a premise. Adapters may facilitate a conversion of communications between one or more local area networks and one or more wide area networks. A 6 GHz backhaul may be used by one or more access points to support various wireless services having unique or differing operational and bandwidth requirements. A 6 GHz backhaul may be used to pass communications between an adapter and a network interface device and/or between the adapter and one or more access points.