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公开(公告)号：KR100281419B1
公开(公告)日：2001-02-01
申请号：KR1019980053109
申请日：1998-12-04
IPC: H04B10/2581 , H04B10/25
Abstract: 본 발명의 목적은 WDM 궤환 채널을 갖는 광 공간 스위치의 입력단에서 파장 역다중화기 및 가변 파장 변환기를 이용하여, 출력 링크 상의 WDM 채널 수만큼 입력 패킷을 서로 다른 파장으로 변환한 후 라우팅 함으로 대용량의 광 패킷 버퍼가 필요 없는 완전광 패킷 스위치 시스템을 제공함에 있다. 이와같은 본 발명의 목적을 달성하기 위한 수단은 입력 링크 상의 파장 다중화된 광 패킷 데이터를 파장 역다중화하는 N개의 파장 역다중화기와, 상기 N개의 파장 역다중화기에 각각 L개가 연결되어, 상기 파장 역다중화기에서 역 다중화된 입력 패킷 데이터를 출력 링크 상의 WDM(Wavelength Division Multiplexing) 채널 수 범위 이내에서 L개의 서로 다른 파장을 갖는 광패킷 데이터로 변환하는 L·N개의 가변 파장변환기와, 상기 L·N개의 가변 파장 변환기에서 변환된 광패킷 데이터와 M개의 WDM 궤환 채널을 통해 입력되는 다수 개의 광패킷 데이터를 라우팅정보에 따라 출력단으로 라우팅한 후, 출력링크 상에 L개의 파장을 갖는 광패킷 데이터로 다중화하여 다른 완전광 패킷 스위치 또는 전자 ATM 교환기로 전송하도록 (L.N+M)x(N+M) 의 입출력 디멘젼을 갖는 광 공간 스 위치를 포함하여 구성된다.
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公开(公告)号：KR1020000040232A
公开(公告)日：2000-07-05
申请号：KR1019980055811
申请日：1998-12-17
IPC: H04J14/02 , H04B10/2581
Abstract: PURPOSE: An optical packet switching system based on a method of an optical time division bit multiplex(OTDM) is provided to make a packet multiplex and packet de-multiplex easy in an optical packet switch of a very high speed and implement a stable packet synchronization in a distributed system, by using a bit multiplex type rather than a cell multiplex type. CONSTITUTION: A plurality of optical packet switches(202) for an OTDM are connected to an optical packet distribution and integration unit(201) for a wide division multiplex(WDM). Input packets arrived at the unit(201) are distributed to the optical packet switches(202) and then only optical packets that match to reception addresses are integrated and transferred to input terminals of corresponding optical packet switches(202). A practical exchange of the input packets, passed through the integration process, occurs in the optical packet switches(202). The optical packet switches(202) are switched to their output terminals through a simple multiplex operation by a packet bit and buffer operation.
Abstract translation: 目的：提供一种基于光时分复用（OTDM）方法的光分组交换系统，在非常高速的光分组交换中容易进行分组复用和分组解复用，实现稳定的分组同步 在分布式系统中，通过使用位复用类型而不是小区多路复用类型。 构成：用于OTDM的多个光分组交换机（202）连接到用于宽分多路复用（WDM）的光分组分发和集成单元（201）。 到达单元（201）的输入分组被分配给光分组交换机（202），然后仅将与接收地址匹配的光学分组集成并传送到对应的光分组交换机（202）的输入端。 在光分组交换机（202）中发生通过集成过程的输入分组的实际交换。 通过分组比特和缓冲操作，通过简单的多路复用操作将光分组交换机（202）切换到它们的输出终端。
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公开(公告)号：KR101078053B1
公开(公告)日：2011-10-31
申请号：KR1020090022798
申请日：2009-03-17
Applicant: 한국전자통신연구원 , 위덕대학교 산학협력단
Abstract: 이더넷프레임을광 전달망(OTN) 프레임으로캡슐화하는방법에관한것으로, 수신된이더넷매체접근제어(MAC) 프레임중 프리앰블영역을제외한정보를페이로드정보영역으로매핑하여일반프레이밍절차(Generic Framing Procedure, GFP) 프레임을생성하고, 생성된일반프레이밍절차프레임을광 전달망 프레임형태로캡슐화하는이더넷프레임의캡슐화방법에의해범용화되고있는이더넷신호의광 전송네트워크(OTN) 접속을가능하게하여, 전송망과가입자망간의호환성을유지할수 있다.
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公开(公告)号：KR1020100073067A
公开(公告)日：2010-07-01
申请号：KR1020080131651
申请日：2008-12-22
Applicant: 한국전자통신연구원
IPC: H04B1/10
CPC classification number: H04L25/03057 , H04L25/0204 , H04L2025/03414 , H04L2025/0349
Abstract: PURPOSE: An equalizing apparatus for compensating a distorted reception signal, a method thereof, and a data receiving apparatus are provided to reduce the number of taps and the operation quantity of a filter. CONSTITUTION: A filtering unit includes a forward filter(300) and a reverse filter(310). The filtering unit eliminates ISI(Inter-Symbol Interference) of a received multichannel signal. A zero offset control unit(320) grasps the zero offset of the received signal. The zero offset control unit reflects the grasped zero offset result. The zero offset control unit decides a movement coefficient of the filtering unit.
Abstract translation: 目的：提供一种用于补偿失真的接收信号的均衡装置，其方法和数据接收装置，以减少滤波器的数量和滤波器的操作量。 构成：滤波单元包括正向滤波器（300）和反向滤波器（310）。 滤波单元消除所接收的多信道信号的ISI（符号间干扰）。 零偏移控制单元（320）掌握接收信号的零点偏移。 零偏移控制单元反映所掌握的零偏移结果。 零偏移控制单元决定过滤单元的移动系数。
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公开(公告)号：KR100932910B1
公开(公告)日：2009-12-21
申请号：KR1020070114956
申请日：2007-11-12
Applicant: 한국전자통신연구원
Abstract: 본 발명은 이더넷 망과 광전송계위 (OTH :Optical Transport Hierarchy) 망간의 장애정보 전달장치 및 그 방법에 관한 것으로, 양 망간에 장애관리정보를 교환할 수 없는 문제점 해결을 위해 이더넷/OTH 변환장치, 동기 디지털 계층( SDH : Synchronous Digital Hierarchy)/OTH 변환장치를 이용한 이더넷 망과 OTH 망간의 장애정보 전송장치를 제시하고, 또한, 운영,관리 및 유지보수(OAM : Operation, Administration and Maintenance) 프레임을 이용한 이더넷 망과 광전송계위 (OTH :Optical Transport Hierarchy)망간의 장애정보 전송방법을 제시한다.
이더넷/OTH(Optical Transport Hierarchy )변환장치, 광전달망 (OTN : Optical Transport Network), 장애검출, 장애전달Abstract translation: 本发明是以太网网络，并且所述光传输层级（OTH：光传输体系）涉及一种故障信息传输装置及锰，以太网/ OTH转换器的方法，同步到解决问题不能交换上的锰的量的故障管理信息 数字体系（SDH：同步数字体系）/ OTH以太网使用转换器和呈现OTH锰失败信息发送装置，而且，操作，管理和维护（OAM：操作，管理和维护）以太网帧使用 和光传送层次（OTH）移动性。
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Patent Agency Ranking
公开(公告)号：KR1020090048875A
公开(公告)日：2009-05-15
申请号：KR1020070114956
申请日：2007-11-12
Applicant: 한국전자통신연구원
CPC classification number: H04L41/06 , H04L2012/5625
Abstract: 본 발명은 이더넷 망과 광전송계위 (OTH :Optical Transport Hierarchy) 망간의 장애정보 전달장치 및 그 방법에 관한 것으로, 양 망간에 장애관리정보를 교환할 수 없는 문제점 해결을 위해 이더넷/OTH 변환장치, 동기 디지털 계층( SDH : Synchronous Digital Hierarchy)/OTH 변환장치를 이용한 이더넷 망과 OTH 망간의 장애정보 전송장치를 제시하고, 또한, 운영,관리 및 유지보수(OAM : Operation, Administration and Maintenance) 프레임을 이용한 이더넷 망과 광전송계위 (OTH :Optical Transport Hierarchy)망간의 장애정보 전송방법을 제시한다.
이더넷/OTH(Optical Transport Hierarchy )변환장치, 광전달망 (OTN : Optical Transport Network), 장애검출, 장애전달-
公开(公告)号：KR100467321B1
公开(公告)日：2005-01-24
申请号：KR1020020033718
申请日：2002-06-17
Applicant: 한국전자통신연구원
Abstract: PURPOSE: A controller structure of an optical burst switching network is provided to introduce offset time for data transmitted through a channel on a WDM optical link, thereby minimizing setup time without buffering a data burst and magnifying bandwidth efficiency. CONSTITUTION: A header packet transceiver(602) extracts header information from burst CCG(Control Channel Group) data, and capsulates the rest burst CCG data in Ethernet frame. A packet frame generator(603) generates new header information, and makes CCG data to be transmitted. A multiple forwarder(604) obtains output port number information and output label information from which the made CCG data are outputted, and transmits the obtained information to an electric switch matrix. A multiple scheduler(606) extracts burst length information from the burst CCG data, determines switching time and start time of a header packet, and buffers the burst CCG data to transmit the data. A multiple burst header packet transmitter(608) reads the CCG data, and transmits the CCG data. A switching controller(607) transmits a control signal. An E/O(Electric to Optical) converter(609) converts the CCG data into an optical signal.
Abstract translation: 目的：提供光突发交换网络的控制器结构，以便为通过WDM光链路上的信道传输的数据引入偏移时间，由此最小化建立时间而不缓冲数据突发和放大带宽效率。 构成：首标分组收发器（602）从突发CCG（控制信道组）数据中提取首标信息，并将以太网帧中的其余突发CCG数据封装。 分组帧生成器（603）生成新的报头信息，并且使CCG数据被发送。 多路转发器（604）获得输出端口号信息和从其输出制作的CCG数据的输出标签信息，并将获得的信息发送到电开关矩阵。 多调度器（606）从突发CCG数据中提取突发长度信息，确定首部分组的切换时间和开始时间，并缓冲突发CCG数据以发送数据。 多脉冲串标头分组发送器（608）读取CCG数据，并发送CCG数据。 切换控制器（607）发送控制信号。 E / O（电到光）转换器（609）将CCG数据转换成光信号。
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公开(公告)号：KR1020040037799A
公开(公告)日：2004-05-07
申请号：KR1020020066447
申请日：2002-10-30
Applicant: 한국전자통신연구원
CPC classification number: H04Q11/0066 , H04Q11/0005 , H04Q2011/0064 , H04Q2011/0084
Abstract: PURPOSE: A device of simulating an optical burst assembly for an optical burst switching network is provided to optimize burst size and burst assembling time when converging IP traffic in an optical packet edge router to assemble the IP traffic into one burst and passing the burst through an optical network, thereby improving service speed and service quality by advancing burstiness of the IP traffic. CONSTITUTION: An optical/electric converter(503) performs an optical/electric conversion process for a demultiplexed input optical frame of a wavelength demultiplexer(502). An optical frame disassembler(504) restores the converted optical frame to data, separates the data into plural individual packets, and distinguishes packet data from MPLS labels. A scheduler(509) inputs the MPLS labels to carry out an LIB lookup process, obtains new label information, and performs a scheduling process. An optical burst assembler(505) inputs the packet data to execute a burst assembling process, requests the scheduling process of the scheduler(509), and outputs an assembled burst. An electric switching unit(506) switches the outputted burst. An electric/optical converter(507) performs an electric/optical conversion process for the switched burst, and outputs the converted burst to a wavelength multiplexer(508).
Abstract translation: 目的：提供一种用于模拟光突发交换网络的光突发组合的装置，以在将IP流量聚合在光分组边缘路由器中时优化突发大小和突发组装时间，以将IP业务组合成一个突发并将该突发通过一个突发 光网络，从而通过提高IP流量的突发性来提高服务速度和服务质量。 构成：光/电转换器（503）对波分解复用器（502）的解复用的输入光学帧执行光/电转换处理。 光学帧分解器（504）将转换的光学帧恢复为数据，将数据分离成多个单独的分组，并将分组数据与MPLS标签区分开。 调度器（509）输入MPLS标签以进行LIB查找处理，获得新的标签信息，并执行调度处理。 光突发组合器（505）输入分组数据以执行突发组合处理，请求调度器（509）的调度过程，并输出组合的突发。 电切换单元（506）切换输出的脉冲串。 电/光转换器（507）对切换脉冲串执行电/光转换处理，并将转换的脉冲串输出到波长多路复用器（508）。
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公开(公告)号：KR100407820B1
公开(公告)日：2003-12-01
申请号：KR1020010072641
申请日：2001-11-21
Applicant: 한국전자통신연구원
IPC: H04L12/28
Abstract: PURPOSE: A scheduler for an optical burst switching router and a method thereof are provided to minimize burst data loss by performing a scheduling in arrival order of burst data. CONSTITUTION: Channel information including arrival time information, offset time information and burst data length information of a header packet into which a burst data is inputted is received(41). Processing order information of a scheduling is generated on the basis of the arrival time information of burst data generated on the basis of the arrival time information of the header packet and the offset time information(42). An optical switch switching duration information is generated on the basis of the arrival time information and length information of the burst data(43). Output channel information is generated to output burst data received from an optical switch on the basis of a difference between a previously reserved activation-end time of the optical switch and an arrival time of new burst data to a transmission channel of an optical transmission path(44). Control information for controlling an optical switch fabric is generated on the basis of the processing order information of scheduling, the switching duration information of optical switch and the output channel information(45).
Abstract translation: 目的：提供一种用于光突发交换路由器的调度器及其方法，以通过按突发数据的到达顺序执行调度来使突发数据丢失最小化。 构成：接收包括输入突发数据的标题分组的到达时间信息，偏移时间信息和突发数据长度信息的信道信息（41）。 基于根据首标分组的到达时间信息和偏移时间信息生成的突发数据的到达时间信息生成调度的处理顺序信息（42）。 根据突发数据的到达时间信息和长度信息生成光开关切换持续时间信息（43）。 输出信道信息被生成以基于光开关的先前保留的激活结束时间与新突发数据到达光传输路径的传输信道的到达时间之间的差来输出从光开关接收的突发数据（ 44）。 基于调度的处理顺序信息，光开关的切换持续时间信息和输出信道信息（45）来生成用于控制光交换结构的控制信息。
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公开(公告)号：KR1020030014989A
公开(公告)日：2003-02-20
申请号：KR1020010049025
申请日：2001-08-14
Applicant: 한국전자통신연구원
IPC: H04B10/29
CPC classification number: H04Q11/0005 , H04Q2011/0045
Abstract: PURPOSE: An optical switching method and an apparatus therefor are provided to use an optical signal having a successive data format as a physical data format in an optical packet switch using a general optical transceiver. CONSTITUTION: An optical switch is switched so that an input terminal number is identical to an output terminal number(401). The optical switch judges an optical packet is inputted according to each channel(402). If the optical packet is inputted, the optical switch is switched to an output terminal having a destination number of the optical packet during a length of the optical packet(403). If the optical packet is not inputted, the optical switch judges whether an optical packet inputted from an other input terminal for the purpose of an output terminal switched to the input terminal in which the optical packet is not inputted exists(404). If the optical packet exists, the optical switch switches the optical packet to a current output terminal, retrieves an other empty output terminal, and switches a current input terminal to the retrieved output terminal(405).
Abstract translation: 目的：提供一种光学切换方法及其装置，以使用具有连续数据格式的光信号作为使用普通光收发器的光分组交换机中的物理数据格式。 构成：切换光开关，使得输入端子号与输出端子号相同（401）。 光开关根据各信道判断光分组是否被输入（402）。 如果光分组被输入，则光开关在光分组（403）的长度期间切换到具有光分组的目的地号码的输出终端。 如果没有输入光学分组，则光开关判断从另一个输入端子输入的输出端子切换到没有输入光学分组的输入端子的光分组是否存在（404）。 如果光分组存在，则光开关将光分组切换到电流输出端，检索另一空输出端，并将电流输入端切换到检索输出端（405）。
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