首页> 外国专利> SYSTEMS AND METHODS FOR ECHO OR INTERFERENCE CANCELLATION POWER-SAVING MANAGEMENT IN A COMMUNICATION SYSTEM

SYSTEMS AND METHODS FOR ECHO OR INTERFERENCE CANCELLATION POWER-SAVING MANAGEMENT IN A COMMUNICATION SYSTEM

机译:通信系统中回声或干扰消除节电管理的系统和方法

摘要

Embodiments described herein provide echo cancellation power saving management at a cable transceiver. An echo response signal having a first number of signal components is obtained, via an echo cancellation filter. At a first iteration for calculating a first accumulative echo power, a respective echo tap that corresponds to the first iteration is identified. The first accumulative echo power is calculated for the respective iteration by summing powers of outputs from a last echo tap to the respective echo tap. It is then determined whether the first accumulative echo power, exceeds a pre-determined echo power threshold. If the first accumulative echo power exceeds the pre-determined echo power threshold, a first turn-off indication is sent to the echo cancellation filter to turn off all echo taps including and between the last echo tap to the first echo tap.
机译:本文描述的实施例在电缆收发器处提供回声消除功率节省管理。经由回声消除滤波器获得具有第一数量的信号分量的回声响应信号。在用于计算第一累积回波功率的第一迭代中,识别对应于第一迭代的相应回波抽头。通过累加从最后一个回声抽头到各个回声抽头的输出功率,为各个迭代计算第一累积回声功率。然后确定第一累积回波功率是否超过预定的回波功率阈值。如果第一累积回声功率超过预定的回声功率阈值,则第一关闭指示被发送到回声消除滤波器以关闭所有回声抽头,包括最后一个回声抽头和第一回声抽头之间的和。

著录项

  • 公开/公告号US2019215031A1

    专利类型

  • 公开/公告日2019-07-11

    原文格式PDF

  • 申请/专利权人 MARVELL WORLD TRADE LTD.;

    申请/专利号US201916240037

  • 发明设计人 SHAOAN DAI;KOK-WUI CHEONG;ZHENZHONG GU;

    申请日2019-01-04

  • 分类号H04B3/20;H04B3/04;H04B3/493;H04B1/38;

  • 国家 US

  • 入库时间 2022-08-21 12:12:15

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