公开(公告)号：US09621263B2

公开(公告)日：2017-04-11

申请号：US14493540

申请日：2014-09-23

Applicant: Huawei Technologies Co., Ltd.

Inventor： Yijia Wei ,  Juan Ni ,  Zhiyong Feng ,  Ning Deng

IPC: H04B10/079 ,  H04B10/077

CPC classification number: H04B10/07953 ,  H04B10/0775 ,  H04B2210/075

Abstract: The present invention discloses a method and an apparatus for detecting an optical signal-to-noise ratio, a node device, and a network system. The method includes: receiving a detected optical signal carrying amplified spontaneous emission ASE noise; detecting a first alternating current component and a first direct current component of the detected optical signal; acquiring first modulation information of the detected optical signal; acquiring first correction information corresponding to the first modulation information according to the first modulation information; and determining an optical signal-to-noise ratio OSNR of the detected optical signal according to the first alternating current component, the first direct current component, and the first correction information.

公开(公告)号：US20150010299A1

公开(公告)日：2015-01-08

申请号：US14493540

申请日：2014-09-23

Applicant: Huawei Technologies Co., Ltd.

Inventor： Yijia Wei ,  Juan Ni ,  Zhiyong Feng ,  Ning Deng

IPC: H04B10/079 ,  H04J14/02 ,  H04B10/60

CPC classification number: H04B10/07953 ,  H04B10/0775 ,  H04B2210/075

Abstract: The present invention discloses a method and an apparatus for detecting an optical signal-to-noise ratio, a node device, and a network system. The method includes: receiving a detected optical signal carrying amplified spontaneous emission ASE noise; detecting a first alternating current component and a first direct current component of the detected optical signal; acquiring first modulation information of the detected optical signal; acquiring first correction information corresponding to the first modulation information according to the first modulation information; and determining an optical signal-to-noise ratio OSNR of the detected optical signal according to the first alternating current component, the first direct current component, and the first correction information.

Abstract translation: 本发明公开了一种用于检测光信噪比的方法和装置，节点装置和网络系统。 该方法包括：接收检测到的携带放大的自发发射ASE噪声的光信号; 检测检测到的光信号的第一交流分量和第一直流分量; 获取检测到的光信号的第一调制信息; 根据第一调制信息获取与第一调制信息对应的第一校正信息; 以及根据第一交流分量，第一直流分量和第一校正信息确定检测到的光信号的光信噪比OSNR。