Access Point Radio Dynamic Configuration for Interference Management
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Solution Overview
Problem
Wireless access points with multiple radios in the same frequency band face interference issues, which are costly to address with full hardware filtering, limiting the practicality of enterprise access points.
Innovation Solution
Implementing a dynamic configuration of radios with limited hardware filtering, where primary and secondary radios operate on different sub-bands, using lower-band and upper-band filters to minimize interference and avoid the need for full-band filtering, and dynamically reconfiguring operations to optimize channel assignments and dwell times.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If multiple radios operate in the same frequency band, then the access point can serve multiple operations simultaneously, but transmission of one radio interferes with reception at the other
Solution Approach 1:
The patent segments the 5 GHz frequency band into different sub-bands (lower and upper sub-bands) and assigns different radios to operate in these separate sub-bands. This frequency division segmentation allows multiple radios to operate concurrently with reduced interference, as each radio operates in its designated sub-band portion of the overall 5 GHz spectrum.
2Reliability
If hardware filtering is applied to address interference, then radio operation is improved, but the access point becomes expensive and large in size
Solution Approach 1:
The patent extracts and removes the need for extensive hardware filtering by utilizing software-based dynamic configuration and sub-band separation. Instead of relying on physical filters to prevent interference, the system achieves interference mitigation through intelligent radio configuration, channel selection, and dynamic parameter adjustment, thereby eliminating expensive and bulky hardware filter components.
3Device complexity
If hardware filters are limited to certain radios, then cost and size are reduced, but interference cannot be adequately addressed
Solution Approach 1:
The patent dynamically changes operational parameters such as channel assignments, transmission power levels, and radio configuration settings to optimize performance and minimize interference. By adjusting these parameters in real-time based on current operating conditions, the system achieves effective interference management without requiring extensive hardware filtering, thus maintaining both cost-effectiveness and operational reliability.
Data Source
AI summary
Dynamic configuration of multiple radios of an access point is described. An example of an access point includes a processor; a memory; hardware filters; and a first set of radio chains and antennas, the access point including a first radio mode for operation as a single radio on a first channel to service a first BSS and a second radio mode for operation as a first radio on the first channel and a second radio on a second channel to perform an additional service, wherein the access point is to provide dynamic configuration of the radios including, upon determining that operation of the first channel to service the first BSS is not compatible with a particular hardware filter of the first radio, migrating the first BSS from the first radio to the second radio to service on the second channel, and providing the additional service on the first channel.