Physical Layer Signal Detection With Analog Noise Mitigation
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Solution Overview
Problem
As the demand for higher data rates in communication networks increases, conventional technologies face challenges in achieving this without significant increases in power consumption, particularly affecting battery life in portable devices.
Innovation Solution
A system and method for combined signal detection in physical layer communication devices that utilize analog and digital signal processing to mitigate noise and interference, allowing for valid signal determination by comparing noise-reduced signal strength to configurable thresholds.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Speed
If conventional signal detection methods are used to achieve higher data rates, then data transmission speed is improved, but power consumption increases significantly
Solution Approach 1:
The patent applies preliminary action by performing analog signal processing and noise mitigation before digital signal detection. The system pre-conditions the received signal through analog filtering and interference cancellation, which reduces the complexity of subsequent digital processing and lowers overall power consumption while maintaining high data rates
Solution Approach 2:
The patent substitutes mechanical/digital processing with analog signal processing for preliminary noise mitigation. By using analog circuits to perform filtering and interference cancellation before digital conversion, the system reduces the computational burden on digital processors, thereby reducing power consumption while achieving high data transmission rates
2Reliability
If noise mitigation processing is applied to the signal, then signal quality is improved, but processing complexity increases
Solution Approach 1:
The patent segments the signal processing into distinct analog and digital stages. The analog stage handles noise mitigation and interference cancellation, while the digital stage focuses on signal detection and decoding. This segmentation allows each stage to be optimized independently, improving signal quality without overwhelming processing complexity
Solution Approach 2:
The patent introduces an analog signal processing stage as an intermediary between the received signal and digital processing. This intermediate analog conditioning stage pre-mitigates noise and interference, making the subsequent digital processing simpler and more efficient while maintaining high signal quality
Data Source
AI summary
Communication devices coupled via a communication link may comprise physical layer devices that may be operable to determine presence of a received signal and to mitigate noise in the signal prior to processing and/or validating the signal. Analog and/or digital signal processing may be utilized to process the signal and/or mitigate noise in the signal. Noise mitigation may comprise near-end crosstalk cancelling and/or echo cancelling and/or may utilize local transmit signal information. Subsequent to noise mitigation, samples of the noise reduced signal may be accumulated and/or an average signal strength and/or average signal power level may be determined. The average signal strength and/or average signal power level may be compared to one or more thresholds which may be configurable and/or programmable.