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公开(公告)号：KR1020120074357A
公开(公告)日：2012-07-06
申请号：KR1020100136163
申请日：2010-12-28
Applicant: 한국전자통신연구원
IPC: H04B10/2581
CPC classification number: H04B10/272 , H04J14/0232 , H04J14/0238 , H04J14/0246 , H04J14/0247 , H04J14/025 , H04J14/0252 , H04J14/0282
Abstract: PURPOSE: A passive optical network apparatus for transmitting optical signals is provided to promote band efficiency of uplink signals by changing a complex circuit into a simple circuit for transmitting and receiving the uplink signals. CONSTITUTION: An optical circulator(541) transmits a downlink signal inputted from a downlink optical trunk network to a wavelength distributer(542). The optical circulator transmits uplink signals inputted from the wavelength distributer to the downlink optical trunk network and a different uplink optical trunk network. The wavelength distributer distributes the downlink signal to plural wavelengths. The wavelength distributer connects the downlink signal to an optical distribution network. The wavelength distributer connects the uplink signal inputted from the optical distributer to the optical circulator.
Abstract translation: 目的：提供一种用于发送光信号的无源光网络装置，用于通过将复合电路改变成用于发送和接收上行链路信号的简单电路来提高上行链路信号的频带效率。 构成：光循环器（541）将从下行链路光中继网络输入的下行链路信号发送到波长分配器（542）。 光循环器将从波长分配器输入的上行链路信号发送到下行链路光中继网络和不同的上行链路光中继网络。 波长分配器将下行链路信号分配到多个波长。 波长分配器将下行链路信号连接到光分配网络。 波长分配器将从光分配器输入的上行链路信号连接到光循环器。
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公开(公告)号：KR1020120018087A
公开(公告)日：2012-02-29
申请号：KR1020110082210
申请日：2011-08-18
Applicant: 한국전자통신연구원
IPC: H04B10/2581 , H04L29/06
CPC classification number: H04J14/0221 , H04J14/0227
Abstract: PURPOSE: An optical subscriber network is provided to enable users to manage plural optical network terminals using a simple protocol, and to reduce the power consumption. CONSTITUTION: An optical subscriber network comprises the following: a grouping unit(530) grouping more than one optical network terminal into more than one sleep group; a transmitting unit(510) multi-casting a sleep mode permission message to the optical network terminals in the sleep groups; and a receiving unit(520) receiving a response message for the sleep mode permission message transmitted from the optical network terminals in a uni-cast mode.
Abstract translation: 目的：提供光用户网络，使用户能够使用简单的协议来管理多个光网络终端，并降低功耗。 构成：光用户网络包括：分组单元（530），将多于一个光网络终端分组成多于一个睡眠组; 发送单元（510）将睡眠模式许可消息多播给睡眠组中的光网络终端; 以及接收单元（520），其以单播模式从所述光网络终端接收到用于所述睡眠模式许可消息的响应消息。
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公开(公告)号：KR1020120018086A
公开(公告)日：2012-02-29
申请号：KR1020110082209
申请日：2011-08-18
Applicant: 한국전자통신연구원
IPC: H04B10/2581 , H04B10/60
CPC classification number: H04Q11/0066 , H04B10/616
Abstract: PURPOSE: Method and apparatus for recovering burst mode clock and data are provided to extract clock from fast burst mode packet data transmitted from ONUs to OLTs. CONSTITUTION: An apparatus for recovering burst mode clock and data comprises the following: a receiving unit(510) receiving optical signals including packet data from plural ONUs(optical network units); a power restoration unit(520) restoring the optical signals to electric signals; and a data insertion unit(530) inserting dummy data into a temporal section without the packet data on the electric signals.
Abstract translation: 目的：提供用于恢复突发模式时钟和数据的方法和装置，以从从ONU发送到OLT的快速突发模式分组数据提取时钟。 构成：用于恢复突发模式时钟和数据的装置包括：接收单元（510），接收包括来自多个ONU（光网络单元）的分组数据的光信号; 功率恢复单元，将光信号恢复为电信号; 以及数据插入单元（530），将虚拟数据插入到时间部分，而没有关于电信号的分组数据。
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公开(公告)号：KR101078052B1
公开(公告)日：2011-10-31
申请号：KR1020090018892
申请日：2009-03-05
Applicant: 한국전자통신연구원
IPC: H04B10/2581 , H04B10/60
Abstract: 수동광 통신망으로부터의수신데이터복원장치에관한것으로, 광망 종단장치별상향접근시간정보를관리하고, 상기광 망종단장치로상향전송프레임의시작시각정보를할당하는할당대역관리부; 데이터상향전송속도에기초하여, 상기상향전송프레임의도착예상기준시각을파악하기위한타이머를포함하는기준시간생성부; 상기할당대역관리부에서할당되는상기상향전송프레임의시작시각과상기기준시간생성부에서파악되는도착예상기준시각을비교하는비교부; 및상기비교부에서비교결과상기상향전송프레임의시작시각과상기도착예상기준시각이일치하면, 리셋신호를생성하여수신데이터를복원하는광 수신부로제공하는리셋신호생성부;를포함하는것을특징으로하는수신데이터복원장치에의해광 수신기에서광신호도착시간에맞춰정확한리셋신호를생성함으로써 GPON 시스템의프리엠블과 OTN 간의보호구간을최소화함으로써유효대역을증가할수 있어사용가능한상향대역을높일수 있다.
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75.发明授权
公开(公告)号：KR101045688B1
公开(公告)日：2011-07-01
申请号：KR1020080119476
申请日：2008-11-28
Applicant: 한국전자통신연구원
IPC: H04B10/2581 , H04B10/25 , H04B10/27
Abstract: 본 발명은 기가 비트 수동형 광 가입자 망(GPON) 시스템의 ONT 인증 기술에 관한 것이다. 본 발명에 따른 기가비트 수동형 광 가입자 망의 OLT에 비정상적인 상향 트래픽 전송 방지를 위한 ONT 인증 방법에 있어서, ONT가 OLT로부터 시리얼 넘버 요청에 따른 응답 PLOAM 메시지를 생성하여 OLT에 전송하는 단계와, OLT가 ONT로부터 수신된 응답 PLOAM 메시지로부터 시리얼 넘버와 랜덤 지연 값을 추출하고, 이를 식별하기 위한 ONU_ID를 생성하는 단계와, 생성된 ONU_ID를 포함한 ONU_ID 할당 PLOAM 메시지를 생성하여 ONT로 전송하는 단계와, ONT가 수신된 ONU_ID 할당 PLOAM 메시지에 포함된 정보와 응답 PLOAM 메시지에 포함된 정보가 동일한지 체크하는 단계와, 체크결과 동일하면, ONU_ID 할당 PLOAM 메시지에 포함된 ONU_ID를 할당받는 단계를 포함하는 것을 특징으로 한다.
기가비트 수동형 광 가입자 망, 광 네트워크 종단부, 광 회선 종단부, GPON, ONT, OLTAbstract translation: 本发明涉及千兆无源光网络（GPON）系统的ONT认证技术。 在异常的上行链路业务的ONT认证方法防止根据本发明的千兆无源光网络的OLT，其包括ONT的步骤发送OLT根据来自OLT，OLT的ONT的序列号请求产生响应PLOAM消息 该响应中提取该随机延迟值和从由接收到的PLOAM消息中的序列号，并以生成包含所述步骤和，将所得ONU_ID生成ONU_ID用于识别该步骤和，ONT接收要被发送到ONT ONU_ID分配PLOAM消息 通过分配相同的PLOAM消息信息和响应信息的ONU_ID是相位，并检查其相等性检查包括在包括在结果的PLOAM消息，其特征在于包括以下步骤：包括在ONU_ID分配PLOAM消息一个ONU_ID的接收分配。
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Patent Agency Ranking
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
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。
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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
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。
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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
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。
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公开(公告)号：KR100609703B1
公开(公告)日：2006-08-09
申请号：KR1020040069987
申请日：2004-09-02
Applicant: 한국전자통신연구원
Abstract: 본 발명은 가입자 단말 이상 동작 여부의 원격 진단 장치 및 그 방법에 관한 것으로 특히, 수동 광가입자망 시스템에서 가입자 단말의 이상 여부를 중앙국에서 원격으로 진단하는 장치 및 그 방법에 관한 것으로 본 명세서에서 개시하는 가입자 단말 이상 동작 여부의 원격 진단 장치는 상향 신호로부터 사용자 단말의 오류 발생을 감지하고 상기 상향 신호의 주파수 스펙트럼을 분석하는 주파수 분석부; 및 상기 스펙트럼의 모양에 맞는 특정 주파수를 결정하고, 이 특정 주파수와 진단 대상 사용자 단말로부터 전송된 이상 여부 진단용 신호의 최대 주파수를 상호 비교하여 상기 사용자 단말의 이상 동작 여부를 진단하는 이상 여부 진단부를 포함하여 본 발명의 목적 및 기술적 과제를 달성한다.
수동 광가입자망(Passive Optical Network), Ethernet-PON, ATM-PON, WDM-PON, 고장 진단 방법, ONT(Optical Network Terminal)
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