Method and system for a combined signal detection for physical layer communication devices

摘要

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.

主权项

1. A method for communication, the method comprising:
performing by one or more physical layer devices in one or more communication devices that are coupled via a communication link:
receiving a signal from the communication link at a hybrid circuit of the one or more physical layer devices;determining whether the signal received at the hybrid circuit is a valid signal;mitigating noise of a hybrid output signal outputted by the hybrid circuit prior to processing the hybrid output signal;processing the hybrid output signal by normalizing an attenuation of the hybrid output signal and scaling the hybrid output signal by removing one or more least significant bits; anddetermining an average signal strength of the hybrid output signal subsequent to mitigating the noise.