公开(公告)号：US20170279527A1

公开(公告)日：2017-09-28

申请号：US15461214

申请日：2017-03-16

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

Inventor： Geun Yong KIM ,  Hark YOO ,  Sung Chang KIM ,  Dongsoo LEE

IPC: H04B10/079 ,  H04B10/27

CPC classification number: H04B10/27 ,  H04B10/0795 ,  H04B10/272 ,  H04J14/0227 ,  H04Q11/0067

Abstract: A method and an apparatus for setting a quiet window in a passive optical network system are provided. A first response time from a time after an optical line terminal (OLT) transmits a serial number request up to a time in which the OLT receives a first response signal to the serial number request is measured, and a second response time up to a time in which the OLT receives a final response signal to the serial number request is measured. In addition, distance information of an optical network unit (ONU) including the first response time and the second response time is acquired.

公开(公告)号：US20170244488A1

公开(公告)日：2017-08-24

申请号：US15439876

申请日：2017-02-22

Applicant: Electronics and Telecommunications Research Institute

Inventor： Jae In KIM ,  Sung Chang KIM ,  Geun Yong KIM ,  Hee Do KIM ,  Moon Kyun OH ,  Hark YOO ,  Dong Soo LEE

IPC: H04B10/27

CPC classification number: H04B10/27 ,  G06K19/0723

Abstract: Provided are an electronic device, a smart label, and an optical network management apparatus using the same. The optical network management apparatus includes one or more smart labels respectively equipped in ports and cables to work and a terminal device configured to transmit control signals, which control smart labels respectively equipped in a port and a cable to work among the one or more smart labels, to smart labels respectively equipped in the port and the cable to work.

公开(公告)号：US20160344475A1

公开(公告)日：2016-11-24

申请号：US15006530

申请日：2016-01-26

Applicant: Electronics and Telecommunications Research Institute

Inventor： Sung-Chang KIM ,  Geun-Yong KIM ,  Jae-In KIM ,  Hark YOO ,  Dong-Soo LEE

IPC: H04B10/079 ,  H04W4/02

CPC classification number: H04W4/02

Abstract: Disclosed herein are a handheld device and method for measuring the quality of an optical link, which are capable of simultaneously measuring the strength of an optical signal and the quality of an optical link at an optical network terminal in a Fiber-to-the-Home (FTTH) network. A presented handheld device for measuring a quality of an optical link includes an optical signal input port for receiving an optical signal, an optical power measurement unit for measuring a power of the optical signal, an output unit for outputting one or more of a measured power value of the optical signal and results of quality measurement of an optical link, based on interworking with an optical network terminal, and a control unit for storing the measured power value of the optical signal and performing a process for quality measurement of the optical link.

Abstract translation: 本文公开了一种用于测量光链路质量的手持设备和方法，其能够同时测量光信号的强度和在光纤到户中的光网络终端处的光链路的质量 （FTTH）网络。 提供的用于测量光链路质量的手持设备包括用于接收光信号的光信号输入端口，用于测量光信号功率的光功率测量单元，用于输出测量功率的一个或多个的输出单元 基于与光网络终端的互配，光信号的值和光链路的质量测量结果，以及用于存储所测量的光信号的功率值并执行光链路质量测量的处理的控制单元。

公开(公告)号：US20150318928A1

公开(公告)日：2015-11-05

申请号：US14689650

申请日：2015-04-17

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

Inventor： Hark YOO ,  Dong Soo LEE ,  Geun Yong KIM ,  Sung Chang KIM ,  Hee Do KIM ,  Jae In KIM

IPC: H04B10/564 ,  H04J14/08 ,  H04J14/02 ,  H04B10/079

CPC classification number: H04B10/564 ,  H04B10/07953 ,  H04B10/07955 ,  H04J14/0221 ,  H04J14/0267 ,  H04J14/0282 ,  H04J14/08

Abstract: Disclosed are a method and system for determining and controlling power of an optical transmitter of an optical network unit (ONU) for a time and wavelength division multiplexing passive optical network (TWDM-PON). The system includes an RSSI collector configured to collect received signal strength indication (RSSI) information from upstream optical signals received from the ONUs connected to optical line terminal (OLT) ports, an ONU power level determiner configured to gather the pieces of RSSI information about the ONUs from the RSSI collector, and to determine power of optical transmitters of the ONUs based on the gathered information, and a power mode controller configured to receive power mode setting information of the optical transmitters of the ONUs from the ONU power level determiner, and to generate a physical layer operation and maintenance (PLOAM) message to control power modes of the ONUs based on the received power mode setting information.

Abstract translation: 公开了用于时分和波分复用无源光网络（TWDM-PON）的用于光网络单元（ONU）的光发射机功率的方法和系统。 该系统包括：RSSI收集器，被配置为从从连接到光线路终端（OLT）端口的ONU接收的上游光信号中收集接收信号强度指示（RSSI）信息; ONU功率电平确定器，被配置为收集关于 基于所收集的信息来确定ONU的光发射机的功率;以及功率模式控制器，被配置为从ONU功率电平确定器接收ONU的光发射机的功率模式设置信息，以及 生成物理层操作和维护（PLOAM）消息，以基于接收到的功率模式设置信息来控制ONU的功率模式。

公开(公告)号：US20140270779A1

公开(公告)日：2014-09-18

申请号：US14038420

申请日：2013-09-26

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

Inventor： Dong-Soo LEE ,  Sung-Chang KIM ,  Geun-Yong KIM ,  Hark YOO ,  Young-Suk LEE

IPC: H04J14/02

CPC classification number: H04J14/025 ,  H04J14/0252

Abstract: Provided is an OLT including a wavelength splitter that splits all upstream optical signals with different wavelengths received from at least one ONU according to wavelength, at least one receiver that receive the optical signals split by the wavelength splitter according to wavelength, a wavelength selector that allocates an upstream transmission wavelength of the at least one ONU, and a transmitter that transmits wavelength allocation information allocated by the wavelength selector to the at least one ONU.

Abstract translation: 提供了一种OLT，其包括波长分离器，其根据波长分离从至少一个ONU接收的不同波长的所有上游光信号，至少一个接收器，其根据波长接收由波长分离器分离的光信号;波长选择器，其分配 所述至少一个ONU的上行传输波长，以及将由所述波长选择器分配的波长分配信息发送到所述至少一个ONU的发射机。