Wireless Circuitry Desensitization Detection via Noise Floor Discrimination
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Solution Overview
Problem
Electronic devices with wireless circuitry face challenges in characterizing and mitigating the effects of radio-frequency interference, particularly distinguishing between wideband and narrowband interference to accurately assess and address desensitization.
Innovation Solution
The implementation of processors that receive performance metric data to calculate noise floor values across channels, discriminate between wideband and narrowband interference by comparing maximum and minimum noise floor values with threshold values, and perform targeted desensitization mitigation based on the type of interference detected.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If desensitization mitigation is performed for all types of interference, then wireless circuitry performance is improved, but unnecessary interference compensation is performed when interference is not present or not significant
Solution Approach 1:
The patent changes the parameter being monitored from general signal strength to specific noise floor characteristics (maximum, minimum, and differential values). By analyzing these specific parameters and comparing them against thresholds, the system can distinguish between significant interference requiring mitigation and normal variations not requiring action, thus avoiding unnecessary compensation while maintaining reliability when needed.
2Measurement precision
If noise floor analysis is performed across all channels, then interference characterization is improved, but processing complexity and time increase
Solution Approach 1:
The patent segments the frequency spectrum into multiple channels and performs noise floor analysis on each channel independently. This segmentation allows the system to identify which specific channels are affected by interference and focus mitigation efforts only on those channels, rather than processing all channels uniformly. The segmentation enables parallel processing and reduces overall processing time while maintaining precise interference characterization.
3Device complexity
If wideband and narrowband interference are treated the same way, then detection process is simplified, but desensitization mitigation accuracy decreases
Solution Approach 1:
The patent applies different analysis methods and thresholds for wideband interference versus narrowband interference based on their distinct characteristics. Wideband interference affects multiple channels and requires analysis of average noise floor across channels, while narrowband interference affects specific channels and requires channel-by-channel analysis. This local quality approach ensures each type of interference is detected and mitigated with the appropriate methodology, improving accuracy without excessive complexity.
Data Source
AI summary
An electronic device may include wireless circuitry having one or more radios and one or more antennas. The wireless circuitry may operate in the presence of radio-frequency interference coming from various sources, which can cause a loss of sensitivity or desensitization of the wireless circuitry. To detect and mitigate desensitization of the wireless circuitry, one or more processors may receive wireless circuitry performance metric data, discriminate between wideband interference and narrowband interference based on the wireless circuitry performance metric data, and use different representative noise floor values for wideband interference or narrowband interference to characterize the desensitization of the wireless circuitry.