公开(公告)号：US09609403B2

公开(公告)日：2017-03-28

申请号：US14484433

申请日：2014-09-12

Applicant: Electronics and Telecommunications Research Institute

Inventor： Geun Yong Kim ,  Dong Soo Lee ,  Sung Chang Kim ,  Hark Yoo ,  Young Suk Lee ,  Hee Do Kim

IPC: H04J14/02 ,  H04J3/16 ,  H04B10/564 ,  H04Q11/00

CPC classification number: H04Q11/0067 ,  H04Q2011/0064 ,  H04Q2011/0079

Abstract: Provided is a method of saving power in a passive optical network (PON) system including an optical line terminal (OLT) and a plurality of optical network units (ONUs), the OLT including an optical transceiver to communicate with at least one ONU through an optical line, and a controller to control the optical transceiver to transmit an upstream bandwidth map to the ONU at a predetermined transmission interval, wherein the transmission interval is determined based on a desired upstream data service delay time.

公开(公告)号：US09002199B2

公开(公告)日：2015-04-07

申请号：US13745144

申请日：2013-01-18

Applicant: Electronics and Telecommunications Research Institute

Inventor： Mun Seob Lee ,  Dong Soo Lee ,  Geun Yong Kim ,  Hark Yoo ,  Sung Chang Kim ,  Young Suk Lee

IPC: H04B10/08 ,  H04B10/071 ,  H04B10/00

CPC classification number: H04B10/071 ,  G01M11/3136 ,  G01M11/3145

Abstract: An apparatus and method for monitoring an optical line is provided. The optical line monitoring apparatus may include a comparison unit to extract first identification information about an optical network terminal (ONT) from reflected data that is reflected and received from the optical line, and to compare the extracted first identification information to predetermined second identification information about the ONT, and a processor to analyze a state of the optical line using the reflected data when the first identification information is identical to the second identification information.

Abstract translation: 提供一种用于监视光线路的装置和方法。 光线路监视装置可以包括比较单元，用于从光线反射和接收的反射数据中提取关于光网络终端（ONT）的第一识别信息，并将所提取的第一识别信息与预定的第二识别信息进行比较 ONT，以及处理器，当第一识别信息与第二识别信息相同时，使用反射数据分析光线路的状态。

公开(公告)号：US09184844B2

公开(公告)日：2015-11-10

申请号：US13745112

申请日：2013-01-18

Applicant: Electronics and Telecommunications Research Institute

Inventor： Mun Seob Lee ,  Dong Soo Lee ,  Hark Yoo ,  Sung Chang Kim ,  Geun Yong Kim ,  Young Suk Lee

IPC: H04B10/00 ,  H04B10/27 ,  H04B10/272 ,  H04J3/22 ,  H04Q11/00

CPC classification number: H04B10/27 ,  H04B10/272 ,  H04J3/22 ,  H04Q11/0067 ,  H04Q2011/0088

Abstract: An optical network system for controlling a passive optical network (PON) in which at least one symmetric optical subscriber terminal and at least one asymmetric optical subscriber terminal coexist is provided.

Abstract translation: 一种用于控制无源光网络（PON）的光网络系统，其中至少一个对称光用户终端和至少一个非对称光用户终端共存。