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    SYSTEM AND METHOD FOR SETTING DOWNSTREAM FORWARD ERROR CORRECTION CODE IN TIME DIVISION MULTIPLEXING PASSIVE OPTICAL NETWORK
    3.
    发明申请
    SYSTEM AND METHOD FOR SETTING DOWNSTREAM FORWARD ERROR CORRECTION CODE IN TIME DIVISION MULTIPLEXING PASSIVE OPTICAL NETWORK 审中-公开
    系统和方法，用于设置时间段内的下行错误纠正码多路复用被动光网络

    公开(公告)号：US20150326346A1

    公开(公告)日：2015-11-12

    申请号：US14316867

    申请日：2014-06-27

    申请人： Electronics and Telecommunications Research Institute

    发明人： Hark YOO ,  Dong Soo LEE ,  Hee Do KIM

    IPC分类号： H04L1/00 ,  H04Q11/00

    CPC分类号： H03M13/353 ,  H03M13/1515 ,  H04B10/272 ,  H04L1/0027 ,  H04L1/0075 ,  H04Q11/0067 ,  H04Q2011/0033 ,  H04Q2011/0045 ,  H04Q2011/0083

    摘要： Provided are a system and method for setting a downstream forward error correction code for a downstream frame which is transmitted from an optical line terminal to an optical network unit in a time division multiplexing passive optical network. A system for setting a downstream forward error correction code in a time division multiplexing passive optical network includes: an optical line terminal configured to change a downstream forward error correction (FEC) indication included in a downstream frame and set a downstream FEC indication counter included in the downstream frame to transmit the downstream frame; and an optical network unit configured to receive the downstream frame from the optical line terminal and synchronize an FEC setting of the optical network unit with the FEC setting of the optical line terminal as a result of detection of the downstream FEC indication and downstream FEC indication counter included in the downstream frame.

    摘要翻译： 提供一种用于设置在时分复用无源光网络中从光线路终端发送到光网络单元的下行帧的下行前向纠错码的系统和方法。 一种用于在时分复用无源光网络中设置下行前向纠错码的系统包括：光线路终端，被配置为改变包括在下游帧中的下行前向纠错（FEC）指示，并且设置包括在下行帧中的下行FEC指示计数器 下游帧传输下游帧; 以及光网络单元，其被配置为从所述光线路终端接收所述下行帧，并且作为所述下行FEC指示和下游FEC指示计数器的检测结果，使所述光网络单元的FEC设置与所述光线路终端的FEC设置同步 包含在下游框架中。

    METHOD AND SYSTEM FOR DETERMINING AND CONTROLLING POWER OF OPTICAL TRANSMITTER OF OPTICAL NETWORK UNIT FOR TIME AND WAVELENGTH DIVISION MULTIPLEXING PASSIVE OPTICAL NETWORK
    6.
    发明申请
    METHOD AND SYSTEM FOR DETERMINING AND CONTROLLING POWER OF OPTICAL TRANSMITTER OF OPTICAL NETWORK UNIT FOR TIME AND WAVELENGTH DIVISION MULTIPLEXING PASSIVE OPTICAL NETWORK 有权
    用于时间和波长部分的光网络光传输器的功率测量和控制方法和系统多路复用被动光网络

    公开(公告)号：US20150318928A1

    公开(公告)日：2015-11-05

    申请号：US14689650

    申请日：2015-04-17

    申请人： ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

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

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

    CPC分类号： H04B10/564 ,  H04B10/07953 ,  H04B10/07955 ,  H04J14/0221 ,  H04J14/0267 ,  H04J14/0282 ,  H04J14/08

    摘要： 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.

    摘要翻译： 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。

    METHOD AND APPARATUS FOR SELECTING WAVELENGTH IN HYBRID PASSIVE OPTICAL NETWORK SYSTEM
    7.
    发明申请
    METHOD AND APPARATUS FOR SELECTING WAVELENGTH IN HYBRID PASSIVE OPTICAL NETWORK SYSTEM 有权
    在混合被动光网络系统中选择波长的方法和装置

    公开(公告)号：US20160373207A1

    公开(公告)日：2016-12-22

    申请号：US15173436

    申请日：2016-06-03

    申请人： ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

    发明人： Geun Yong KIM ,  Hark YOO ,  Sung Chang KIM ,  Dong Soo LEE

    IPC分类号： H04J14/02 ,  H04L7/00 ,  H04J14/08 ,  H04B10/27

    CPC分类号： H04J14/0227 ,  H04J14/0282 ,  H04L7/0075

    摘要： Disclosed is a method and an apparatus for selecting a wavelength in a hybrid Passive Optical Network (PON) system. The method of selecting a wavelength by a wavelength selecting apparatus in a hybrid passive optical network system includes: performing synchronization with any one of a plurality of downstream wavelengths; when the synchronization is succeeded, determining whether to select the synchronized downstream wavelength for a registration to an optical line terminal; and when it is determined to select the synchronized downstream wavelength, performing the registration to the optical line terminal through the synchronized downstream wavelength.

    摘要翻译： 公开了一种在混合无源光网络（PON）系统中选择波长的方法和装置。 在混合无源光网络系统中通过波长选择装置选择波长的方法包括：与多个下行波长中的任何一个进行同步; 当同步成功时，确定是否选择同步的下行波长用于注册到光线路终端; 并且当确定选择同步的下行波长时，通过同步的下行波长对光线路终端进行配准。

    FAST PROTECTION SWITCHING METHOD FOR PASSIVE OPTICAL NETWORK
    9.
    发明申请
    FAST PROTECTION SWITCHING METHOD FOR PASSIVE OPTICAL NETWORK 有权
    用于被动光网络的快速保护切换方法

    公开(公告)号：US20150244454A1

    公开(公告)日：2015-08-27

    申请号：US14591945

    申请日：2015-01-08

    申请人： Electronics and Telecommunications Research Institute

    发明人： Geun Yong KIM ,  Sung Chang KIM ,  Hark YOO ,  Hee Do KIM ,  Dong Soo LEE

    IPC分类号： H04B10/032

    CPC分类号： H04B10/032 ,  H04Q11/0067 ,  H04Q2011/0081

    摘要： A fast protection switching method for a Passive Optical Network (PON). When performing protection switching from an operation link (an operation network) to a protection link (a protection network) in a PON, the fast protection switching method enables rapidly updating Equalization Delay (EqD) values, even if the EqD values are different for Optical Network Terminals (ONTs) of varying distances.

    摘要翻译： 一种无源光网络（PON）的快速保护切换方法。 在从PON的操作链路（操作网络）到保护链路（保护网络）进行保护切换时，快速保护切换方法能够快速更新均衡延迟（EqD）值，即使EqD值对于光学 不同距离的网络终端（ONT）。

    METHOD OF CONTROLLING OPTICAL NETWORK UNIT (ONU) IN SLEEP MODE
    10.
    发明申请
    METHOD OF CONTROLLING OPTICAL NETWORK UNIT (ONU) IN SLEEP MODE 有权
    在休眠模式下控制光网络单元（ONU）的方法

    公开(公告)号：US20150104174A1

    公开(公告)日：2015-04-16

    申请号：US14484433

    申请日：2014-09-12

    申请人： Electronics and Telecommunications Research Institute

    发明人： Geun Yong KIM ,  Dong Soo LEE ,  Sung Chang KIM ,  Hark YOO ,  Young Suk LEE ,  Hee Do KIM

    IPC分类号： H04Q11/00

    CPC分类号： H04Q11/0067 ,  H04Q2011/0064 ,  H04Q2011/0079

    摘要： 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.

    摘要翻译： 提供一种在包括光线路终端（OLT）和多个光网络单元（ONU）的无源光网络（PON）系统中节省功率的方法，所述OLT包括光收发器，以通过以下方式与至少一个ONU通信： 光线路和控制器，用于控制光收发器以预定的传输间隔向ONU发送上行带宽映射，其中基于期望的上行数据业务延迟时间来确定传输间隔。