公开(公告)号：US20150188586A1

公开(公告)日：2015-07-02

申请号：US14645704

申请日：2015-03-12

Applicant: Broadcom Corporation

Inventor： Mehmet TAZEBAY ,  Scott POWELL ,  Peiqing WANG ,  Bruce CONWAY ,  Sang BUI

IPC: H04B1/12

CPC classification number: H04B1/12 ,  H04B1/7097 ,  H04B3/23 ,  H04B3/32

Abstract: 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.

Abstract translation: 通过通信链路耦合的通信设备可以包括物理层设备，其可以在处理和/或验证信号之前确定接收信号的存在并减轻信号中的噪声。 可以使用模拟和/或数字信号处理来处理信号和/或减轻信号中的噪声。 噪声减轻可以包括近端串扰消除和/或回波消除和/或可以利用本地发射信号信息。 在噪声减轻之后，可以累积噪声降低信号的样本和/或可以确定平均信号强度和/或平均信号功率电平。 平均信号强度和/或平均信号功率电平可以与可配置和/或可编程的一个或多个阈值进行比较。