公开(公告)号：KR1020110059302A

公开(公告)日：2011-06-02

申请号：KR1020090115990

申请日：2009-11-27

Applicant: 한국전자통신연구원

Inventor： 김근용 ,  이영석 ,  이동수

IPC: H04B10/2581 ,  H04B10/00

CPC classification number: H04Q11/0067 ,  G06F8/65 ,  G06F8/70 ,  H04Q2213/05

Abstract: PURPOSE: An ONT configuring a PON(Passive Optical Network) and a method for updating the software image of the ONT are provided to execute a software image which can be booted in the ONT on the basis of stored state information of an OMCI(ONT Management Control and Interface) software image management entity. CONSTITUTION: A control unit completes OS(Operating System) booting(414). An ONT(Optical Network Terminal) interprets the software image script file of a non-volatile memory(415,416). The ONT selects one of two software images of the nonvolatile memory(417). The ONT loads the selected software image(418). The ONT practices the selected software image(419).

Abstract translation: 目的：提供一种配置PON（无源光网络）的ONT和更新ONT软件映像的方法，以便根据OMCI的存储状态信息（ONT管理）执行可以在ONT中引导的软件映像 控制和接口）软件映像管理实体。 构成：控制单元完成OS（操作系统）启动（414）。 ONT（光网络终端）解释非易失性存储器的软件映像脚本文件（415,416）。 ONT选择非易失性存储器的两个软件映像中的一个（417）。 ONT加载所选的软件映像（418）。 ONT实施所选软件映像（419）。

公开(公告)号：KR1020100061263A

公开(公告)日：2010-06-07

申请号：KR1020090017029

申请日：2009-02-27

Applicant: 한국전자통신연구원

Inventor： 두경환 ,  윤빈영 ,  이동수

IPC: H04L12/18 ,  H04B10/2581 ,  H04L12/70

CPC classification number: H04L12/2861

Abstract: PURPOSE: An OLT(Optical Line Terminal) in a GPON(Gigabit Passive Optical Network) and a method for transmitting a broadcast frame using the same are provided to retransmit a broadcast frame downstream without having to manage an Ethernet address and an IP address. CONSTITUTION: A PON(Passive Optical Network) connects an OLT(Optical Line Terminal)(10) installed in a telephone office to ONUs(Optical Network Units)(20), also called ONTs(Optical Network Terminals), installed in a home through a passive optical splitter in a point to multi-point scheme. A downstream transmission from the OLT to the optical network unit is performed through a broadcast transmission scheme allowing all packets to be transmitted to the optical network unit. However, an upstream transmission from the optical network units to the optical line terminal is performed by sharing a single optical link with a plurality of optical network units based on various medium access control schemes. A broadcast frame, such as an ARB packet, needs to be output through ports except for a port of an Ethernet switch which has transmitted the broadcast frame. When transmitting a broadcast frame in the GPON(Gigabit Passive Optical Network), two transmission paths are considered based on the direction of a transmission.

Abstract translation: 目的：提供GPON（千兆无源光网络）中的OLT（光线路终端）和用于发送使用该OLT的广播帧的方法，以便不必管理以太网地址和IP地址来重新下发广播帧。 PON（Passive Optical Network，无源光网络）将安装在电话局的OLT（Optical Line Terminal，光线路终端）（10）连接到ONU（Optical Network Unit）（20），也称为ONT（Optical Network Terminals） 一种无源光分路器，以点对多点方案。 从OLT到光网络单元的下行传输通过允许将所有分组传输到光网络单元的广播传输方案来执行。 然而，通过基于各种介质访问控制方案与多个光网络单元共享单个光链路来执行从光网络单元到光线路终端的上行传输。 需要通过除了发送广播帧的以太网交换机的端口之外的端口输出诸如ARB分组的广播帧。 当在GPON（千兆位被动光网络）中发送广播帧时，基于传输的方向考虑两个传输路径。

公开(公告)号：KR1020100060903A

公开(公告)日：2010-06-07

申请号：KR1020080119704

申请日：2008-11-28

Applicant: 한국전자통신연구원

Inventor： 김광옥 ,  김용태 ,  두경환 ,  이동수

IPC: H04B10/2581 ,  H04B10/27

CPC classification number: H04Q11/0067 ,  H04Q2011/0079 ,  H04Q2011/0086

Abstract: PURPOSE: An ONT(Optical Network Terminal), an OLT(Optical Line Terminal) and GPON(Gigabit Passive Optical Network) comprising these are provided to apply variably generated delay time generated with the variable in bit unit by data bus size by UL/DL transmission rate and by clock frequency to distance measurement thereby exactly measuring distance of ONTs in bit unit. CONSTITUTION: A DL(DownLink) frame demultiplexer(413) extracts a distance measurement request message by inverse multiplexing of a downward frame. An UL(UpLink) transmission controller(414) controls transmission time of an UL frame by calculation of time for start bit search time of the downward frame and UL/DL clock deviation. An UL frame multiplexer](415) performs delayed output of upward frame as time of calculated byte unit. A bit unit delay unit(416) performs delay output of the upward frame as time of calculated residual bit unit.

Abstract translation: 目的：提供包括它们的ONT（光网络终端），OLT（光线路终端）和GPON（千兆位被动光网络），以通过UL / DL的数据总线大小来应用可变地生成的以比特为单位的延迟时间 传输速率和时钟频率到距离测量，从而精确测量ONT的位数单位。 构成：DL（下行链路）帧解复用器（413）通过向下帧的反向多路复用来提取距离测量请求消息。 UL（UpLink）传输控制器（414）通过计算下行帧的起始比特搜索时间和UL / DL时钟​​偏差的时间来控制UL帧的传输时间。 UL帧复用器（415）作为计算字节单位的时间执行向上帧的延迟输出。 位单位延迟单元（416）作为计算出的残留位单元的时间执行向上帧的延迟输出。

公开(公告)号：KR1020090054761A

公开(公告)日：2009-06-01

申请号：KR1020070121605

申请日：2007-11-27

Applicant: 한국전자통신연구원

Inventor： 윤빈영 ,  한만수 ,  김성창 ,  유학 ,  이동수 ,  김종덕 ,  두경환 ,  김용태 ,  김광옥 ,  김봉규 ,  김근용 ,  곽성훈 ,  이문섭 ,  레콴

IPC: H04B10/2581 ,  H04B10/27 ,  H04J14/08 ,  H04B10/25

CPC classification number: H04J3/1694 ,  H04J2203/0067 ,  H04Q11/0067 ,  H04Q2011/0064

Abstract: An apparatus and a method efficient dynamic bandwidth allocation for a TDMA based passive optical network are provided to reduce a delay problem by allocating remaining uplink bandwidths to all ONUs(Optical network Units) evenly. A class queue information storage(100) stores a band allocation period for each T-CONT type as well as band amount information. An allocation check table unit(200) checks the received band allocation period received from the class queue information storage. The amount of a band which can be allocated is determined according to the checked period for band allocation. A band allocator(300) re-allocates the remaining uplink bandwidth for each T-CONT type.

Abstract translation: 提供了一种用于基于TDMA的无源光网络的装置和方法的有效动态带宽分配，以通过将所有ONU（光网络单元）的剩余上行链路带宽均匀地分配来减少延迟问题。 类队列信息存储（100）存储每个T-CONT类型的频带分配周期以及频带量信息。 分配检查表单元（200）检查从队列信息存储器接收的接收频带分配周期。 可以根据频带分配的检查周期来确定可以分配的频带的量。 频带分配器（300）为每个T-CONT类型重新分配剩余的上行链路带宽。

公开(公告)号：KR1020090040125A

公开(公告)日：2009-04-23

申请号：KR1020070105754

申请日：2007-10-19

Applicant: 한국전자통신연구원

Inventor： 이동수 ,  윤빈영 ,  김봉태

IPC: H04B10/2581 ,  H04J14/00

CPC classification number: H04J14/0282 ,  H04J14/0226 ,  H04J14/0227 ,  H04J14/0232 ,  H04J14/0238 ,  H04J14/0246 ,  H04J14/0247 ,  H04J14/025 ,  H04J14/0252 ,  H04Q11/0067 ,  H04Q2011/0016 ,  H04Q2011/0035 ,  H04Q2011/0086

Abstract: A time division multiplex and wavelength division multiplexed access passive optical network device applying a time division multiplication method are provided to transmit downlink signal to the subscriber in time division multiplex and wavelength division multiplexed access passive optical network. A TDM(Time Division Multiplex) and WDMA(Wavelength Division Multiple Access) PON(Passive Optical Network) apparatus comprises a base station terminal(510), a wavelength demultiplexer(560) and an optical transceiver(570). The base station terminal has a transmitter(520), an optical circulator(530) and a receiver(540). The transmitter performs the TDM(Time Division Multiplexing) of a plurality of downward signals. The optical circulator transmits the optical signal received from the optical distribution network. The optical transmitter-receiver receives the downward signal from the wavelength demultiplexer.

Abstract translation: 提供了一种应用时分乘法的时分复用和波分多路复用接入无源光网络设备，用于在时分复用和波分多路复用接入无源光网络中向用户发送下行信号。 PON（时分复用）和WDMA（波分多址）PON（无源光网络）装置包括基站终端（510），波长解复用器（560）和光收发器（570）。 基站终端具有发射机（520），光环行器（530）和接收机（540）。 发射机执行多个向下信号的TDM（时分复用）。 光循环器传输从光分配网络接收的光信号。 光发射机 - 接收机从波长解复用器接收下行信号。

公开(公告)号：KR100825728B1

公开(公告)日：2008-04-29

申请号：KR1020060088122

申请日：2006-09-12

Applicant: 한국전자통신연구원

Inventor： 박성웅 ,  김봉규 ,  윤빈영 ,  이동수 ,  김종덕 ,  이문섭

IPC: H04B10/40 ,  H04B10/2581

CPC classification number: H04J14/0226 ,  G02B6/4246 ,  H04J14/0227 ,  H04J14/0247 ,  H04J14/0252 ,  H04J14/0282

Abstract: A hybrid optical transceiver module and a passive optical network comprising the same are provided to package an LD portion in a TOSA structure and package an SOA, a PD, and a WDM coupler in a PLC structure to make two packages into one, thereby solving an optical alignment problem caused by a narrow optical emission angle. A hybrid optical transceiver module is comprised of a first package(100) of a TOSA(Transmitter Optical Sub-Assembly) structure and a second package(200) of a PLC(Planar Lightwave Circuit) platform structure. The first package includes an LD(Laser Diode)(110), a first MPD(Monitor Photo Diode)(130), and a lens(120) for concentrating a transmission optical signal outputted from the LD to emit the transmission optical signal to the outside of the first package. The second package includes an SOA(Semiconductor Optical Amplifier)(210), a second MPD(240), a PD(Photo Diode)(220), an optical waveguide(232), and a WDM(Wavelength Division Multiplex) coupler(230). The SOA receives the transmission optical signal emitted from the first package to emit a high-power transmission optical signal to the outside. The second MPD monitors the high-power transmission optical signal. The PD receives a reception optical signal inputted through an optical fiber(250). The optical waveguide transmits the high-power transmission optical signal emitted from the SOA to the optical fiber. The WDM coupler transmits the reception optical signal to the PD and divides the high-power transmission optical signal and the reception optical signal. The first package and the second package are coupled with each other through optical alignment. A PON(Passive Optical Network) system includes a splitter for transceiving signals to an ONT(Optical Network Terminal) separatedly. The signal is in a TDMA(Time Division Multiplexing Access) type.

Abstract translation: 提供了一种混合光收发模块和包括其的无源光网络，以封装TOSA结构中的LD部分，并将PLC，PD和WDM耦合器封装在PLC结构中，以使两个封装成一体，从而解决 由光发射角狭窄导致的光学对准问题。 混合光收发器模块由TOSA（发射机光学子组件）结构的第一封装（100）和PLC（平面光波电路）平台结构的第二封装（200）组成。 第一包装包括LD（激光二极管）（110），第一MPD（监视器二极管）（130））和用于集中从LD输出的透射光信号的透镜（120），以将透射光信号发射到 在第一包之外。 第二封装包括SOA（半导体光放大器）（210），第二MPD（240），PD（光电二极管）（220），光波导（232）和WDM（波分复用）​​耦合器 ）。 SOA接收从第一封装发射的发射光信号，以向外部发射大功率传输光信号。 第二MPD监视大功率传输光信号。 PD接收通过光纤（250）输入的接收光信号。 光波导将从SOA发射的高功率透射光信号传输到光纤。 WDM耦合器将接收光信号发送到PD，并分割高功率传输光信号和接收光信号。 第一封装和第二封装通过光学对准彼此耦合。 PON（被动光网络）系统包括分离器，用于分离地向ONT（光网络终端）发送信号。 该信号是TDMA（时分复用接入）类型。

公开(公告)号：KR1020070060868A

公开(公告)日：2007-06-13

申请号：KR1020050120995

申请日：2005-12-09

Applicant: 한국전자통신연구원

Inventor： 박성웅 ,  이동수 ,  윤빈영 ,  김종덕 ,  이문섭 ,  한영탁

IPC: H04B10/50 ,  H04B3/54

CPC classification number: G02B6/42 ,  H04B10/40

Abstract: A high output PLC(Planar Lightwave Circuit) optical transmission module and a PLC optical transmission/reception module are provided to implement a small optical transmission module or optical transmission/reception module at a relatively low cost by integrating a laser diode, a semiconductor optical amplifier, and a photodiode of a light receiving unit on a single PLC platform. A laser diode(330) generates a light signal having a certain wavelength. An SOA(Semiconductor Optical Amplifier)(350) amplifies the light signal generated by the laser diode(330) and outputs it to a splitter. A PLC platform packages the laser diode(330) and the SOA(350) so that the light signal can be outputted with high power. A monitor diode(mPD)(320) monitors the light signal generated from the laser diode(330).

Abstract translation: 提供高输出PLC（平面光波电路）光传输模块和PLC光发送/接收模块，以相对较低的成本实现小型光传输模块或光发送/接收模块，其中集成了激光二极管，半导体光放大器 ，以及单个PLC平台上的光接收单元的光电二极管。 激光二极管（330）产生具有一定波长的光信号。 SOA（半导体光放大器）（350）放大由激光二极管（330）产生的光信号并将其输出到分离器。 PLC平台封装激光二极管（330）和SOA（350），以便能够以高功率输出光信号。 监视二极管（mPD）（320）监视从激光二极管（330）产生的光信号。

公开(公告)号：KR100723874B1

公开(公告)日：2007-05-31

申请号：KR1020060029083

申请日：2006-03-30

Applicant: 한국전자통신연구원

Inventor： 윤빈영 ,  이동수 ,  김종덕 ,  박성웅 ,  이문섭 ,  김봉태

IPC: H04L12/28 ,  H04B10/25 ,  H04J14/08 ,  H04N7/22

公开(公告)号：KR1020030031523A

公开(公告)日：2003-04-21

申请号：KR1020030017023

申请日：2003-03-19

Applicant: 한국전자통신연구원 ,  학교법인 한국정보통신학원

Inventor： 이동수 ,  이만섭 ,  이상수 ,  고재수

IPC: H04B10/50 ,  H04B10/508

CPC classification number: H04B10/505 ,  H04B10/5051 ,  H04B10/508

Abstract: PURPOSE: A device for generating CS-RZ(Carrier Suppressed-Return-to-Zero) optical signals is provided to configure a new optical transmitter generating CS-RZ signals using one external modulator, an electrical mixer and an LPF(Low Pass Filter), so as to generate weak dispersion characteristics of optical signals characterized in the CS-RZ signals. CONSTITUTION: A mixer(10) mixes data with half clock signals, to generate a modulator input. An LPF(20) performs low pass filtering for modulator input data provided by the mixer(10) for band-limiting. A driver amplifier(30) mixed and provided by the mixer(10) amplifies the modulator input data band-limited through the LPF(20). And an external modulator(40) applies bias voltage to arrange the modulator input data amplified by the driver amplifier(30) in a transfer function null point, to generate CS-RZ signals in which the phase of adjacent pulse is inversed. The mixer(10) adjusts logical data "0" to data 0V, and adjusts a clock signal to symmetrically swing centered on 0V.

Abstract translation: 目的：提供一种用于产生CS-RZ（载波抑制 - 归零）光信号的设备，用于配置一个新的光发射机，使用一个外部调制器，电动混频器和LPF（低通滤波器）生成CS-RZ信号， ，以产生以CS-RZ信号为特征的光信号的弱色散特性。 构成：混频器（10）将数据与半时钟信号进行混合，以产生调制器输入。 LPF（20）对由混频器（10）提供的用于频带限制的调制器输入数据进行低通滤波。 由混频器（10）混合并提供的驱动器放大器（30）放大通过LPF（20）带宽限制的调制器输入数据。 并且外部调制器（40）施加偏置电压以将由驱动器放大器（30）放大的调制器输入数据布置在传递函数空点中，以产生其中相邻脉冲的相位反相的CS-RZ信号。 混合器（10）将逻辑数据“0”调整为数据0V，并将时钟信号调整为以0V为中心的对称摆动。

公开(公告)号：KR102037222B1

公开(公告)日：2019-10-30

申请号：KR1020120128989

申请日：2012-11-14

Applicant: 한국전자통신연구원

Inventor： 김근용 ,  김성창 ,  유학 ,  이영석 ,  이동수 ,  김영선

IPC: H04B10/25