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公开(公告)号：KR101252826B1
公开(公告)日：2013-04-11
申请号：KR1020090037575
申请日：2009-04-29
Applicant: 한국전자통신연구원
Abstract: 본 발명은 광트랜스폰더가 필요없는 패킷-광 통합스위치에 관한 것으로, 이더넷의 패킷신호를 기설정된 출력포트로 출력하는 패킷 라인 카드(100); 상기 패킷 라인 카드(100)로부터의 패킷 신호를 상기 패킷 신호에 포함된 목적지 주소에 기설정된 출력 포트로 전달하는 패킷 스위치 패브릭(200); 상기 패킷 스위치 패브릭(200)으로부터의 패킷 신호를 기설정된 파장을 갖는 OTU2 광신호로 변환하는 10GbE/OTU2 통합 라인 카드(300); 및 상기 10GbE/OTU2 통합 라인 카드(13)로부터의 광신호를 기설정된 파장별로 기설정된 WDM 포트에 할당하여, 상기 광신호를 파장별로 각 포트로 교환하는 파장선택 스위치 패브릭(400)을 포함하고,
전술한 본 발명의 광트랜스폰더가 필요없는 패킷-광 통합스위치에서는, 상기 패킷 라인 카드(100), 패킷 스위치 패브릭(200), 10GbE/OTU2 통합 라인 카드(300) 및 파장선택 스위치 패브릭(400) 각각은 상기 동작의 역과정을 수행한다.
10GbE, XSBI, OTU2, SFI-4, 패킷 스위치, 광 스위치, 통합 스위치-
公开(公告)号：KR1020120125162A
公开(公告)日：2012-11-14
申请号：KR1020120044096
申请日：2012-04-26
Applicant: 한국전자통신연구원
CPC classification number: H04J3/1658 , H04J3/12 , H04J3/1682 , H04J2203/0067
Abstract: PURPOSE: A method and apparatus for generating a resize control overhead(RCOH) in an optical transport network are provided to eliminate a need to define a separate signal for an resizing protocol pointer(RP) signal or a tributary slot connectivity check(TSCC) signal by using the unused area of OPUflex RCOH. CONSTITUTION: A bandwidth resize(BWR) generating unit inserts an RP signal and a TSCC signal into a RCOH. A BWR relay generating unit refers to an RP signal and a TSCC signal which is included in a RCOH and transmitted through the BWR generating unit. The BWR relay generating unit inserts the RP signal and the TSCC signal into a higher level overhead. The RP signal or the TSCC signal is exchanged using a CI(characteristic information) signal between the BWR generating unit and the BWR relay generating unit.
Abstract translation: 目的：提供一种用于在光传输网络中生成调整大小控制开销（RCOH）的方法和装置，以消除为调整大小协议指针（RP）信号或支路时隙连通性检查（TSCC）信号定义单独信号的需要 通过使用OPUflex RCOH的未使用区域。 构成：带宽调整（BWR）生成单元将RP信号和TSCC信号插入RCOH。 BWR中继生成单元是指包含在RCOH中并通过BWR生成单元发送的RP信号和TSCC信号。 BWR中继产生单元将RP信号和TSCC信号插入更高级别的开销。 使用BWR生成单元和BWR中继生成单元之间的CI（特征信息）信号来交换RP信号或TSCC信号。
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公开(公告)号：KR100772176B1
公开(公告)日：2007-11-01
申请号：KR1020060112891
申请日：2006-11-15
Applicant: 한국전자통신연구원
CPC classification number: H04L12/66
Abstract: A method and an apparatus for guaranteeing a differentiated bandwidth for each service in an ethernet frame transmission system are provided to guarantee a differentiated bandwidth for each service by setting a different pause time according to a priority level assigned to each service when a pause frame is generated for the reason of congestion or a failure. A frame transmitting/receiving unit(10) transmits/receives ethernet frames through multiple ports. A MAC(Media Access Control) processing unit(20) recognizes information on an available current ethernet network according to congestion or a system failure by monitoring the multiple ports, and interprets a received ethernet frame. An input ethernet frame buffer(30) temporarily stores the received ethernet frame. A signal processing unit(60) sets a different pause time according to each priority level assigned to each service based on memory state information of the input ethernet frame buffer(30) and the availability information, adds a pause frame including the set pause time in a MAC control frame, and transmits it to adjacent nodes. A network processor unit(50) classifies ethernet frames inputted from the input ethernet frame buffer(30) by service, assigns a priority level, and outputs them. An output ethernet frame buffer(40) temporarily stores the outputted ethernet frames.
Abstract translation: 提供了一种用于保证以太网帧传输系统中每个业务的差分带宽的方法和装置，以便通过在产生暂停帧时根据分配给每个业务的优先级设置不同的暂停时间来保证每个业务的差分带宽 由于拥塞或失败的原因。 帧发送/接收单元（10）通过多个端口发送/接收以太网帧。 MAC（媒体访问控制）处理单元（20）通过监视多个端口来识别根据拥塞或系统故障的可用当前以太网网络的信息，并解释接收到的以太网帧。 输入以太网帧缓冲器（30）临时存储接收的以太网帧。 根据输入以太网帧缓冲器（30）的存储状态信息和可用性信息，信号处理单元（60）根据分配给每个服务的每个优先级设置不同的暂停时间，将包括所设置的暂停时间的暂停帧添加到 MAC控制帧，并将其发送到相邻节点。 网络处理器单元（50）通过服务对从输入以太网帧缓冲器（30）输入的以太网帧进行分类，分配优先级，并输出它们。 输出以太网帧缓冲器（40）临时存储输出的以太网帧。
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公开(公告)号：KR1020060065440A
公开(公告)日：2006-06-14
申请号：KR1020050037957
申请日：2005-05-06
Applicant: 한국전자통신연구원
IPC: H04L12/851 , H04L12/823
Abstract: 본 발명은 이더넷 패킷 전송 장치 및 그 방법에 관한 것으로, 다수개의 이더넷 포트를 통해 이더넷 패킷을 송수신하는 패킷 송수신수단; 상기 패킷 송수신수단으로부터 출력된 이더넷 패킷을 제공받아 상기 이더넷 패킷의 헤더정보를 판독하여 정지 프레임 신호를 검출하고, 해당 포트 상태정보를 출력하기 위한 MAC 헤더처리수단; 상기 MAC 헤더처리수단으로부터 출력된 이더넷 패킷을 제공받아 미리 정해진 규정에 따라 서비스별 또는 목적지별로 분류한 후 패킷 단위의 우선 순위 레이블을 할당하고, 해당 포트에 대한 메모리 상태정보를 출력하기 위한 패킷처리수단; 상기 패킷처리수단으로부터 할당된 우선 순위 레이블에 따라 이더넷 패킷의 출력 순서를 제어하기 위한 혼잡제어수단; 및 상기 MAC 헤더처리수단으로부터 출력된 포트 상태정보와 상기 패킷처리수단으로부터 출력된 메모리 상태정보를 비교하고, 그 결과에 따라 각각 메모리제어신호 또는 혼잡제어신호를 출력하여 상기 패킷처리수단 및 상기 혼잡제어수단의 동작을 제어하기 위한 신호처리수단을 포함함으로써, 이더넷 패킷 단위의 성능을 보장하여 차별화된 서비스를 제공할 수 있는 효과가 있다.
이더넷, 패킷, 정지 프레임 신호, 혼잡 제어, 이더넷 성능-
Patent Agency Ranking
公开(公告)号：KR1020020046491A
公开(公告)日：2002-06-21
申请号：KR1020000076689
申请日：2000-12-14
Applicant: 한국전자통신연구원
IPC: G02B6/02
CPC classification number: H01S3/06754 , H01S3/06758 , H01S3/10015 , H01S3/1301 , H01S2301/04
Abstract: PURPOSE: An automatically gain controlled optical fiber amplifier is provided to improve an operating speed by respectively controlling gains of each channel in real time. CONSTITUTION: An automatically gain controlled optical fiber amplifier comprises a first optical tap(301) partially dividing an input signal, a second optical tap(302) partially dividing an output signal, an 1x2 optical coupler(303) distributing the output of the first optical tap(301) to a signal processor(330) and a first wavelength selecting filter(321), the first wavelength selecting filter(321) separating an arbitrary channel signal from a partial signal of the output signal of the 1x2 optical coupler(303), a second wavelength selecting filter(322) separating an arbitrary channel signal from a partial signal of the output of the second optical tap(302), the signal processor(330) measuring all input signal intensity and the number of input channel by receiving signals from the 1x2 optical coupler(303) and the wavelength selecting filters(321,322), a controller(340) generating controlling signals according to the result of the signal processor(330), an optical amplifying and attenuating part(310) supplying signals to the second optical tap(302) according to the controller(340).
Abstract translation: 目的：提供自动增益控制光纤放大器，通过分别实时控制每个通道的增益来提高工作速度。 构成：自动增益控制的光纤放大器包括：部分地分割输入信号的第一光学抽头（301），部分地分割输出信号的第二光学抽头（302）;分配第一光学器件的输出的1x2光耦合器 将信号处理器（330）和第一波长选择滤波器（321）的第一波长选择滤波器（321）与1×2光耦合器（303）的输出信号的部分信号分离， ，第二波长选择滤波器（322），用于将任意信道信号与第二光抽头（302）的输出的部分信号分离，所述信号处理器（330）通过接收信号测量所有输入信号强度和输入信道数量 来自1x2光耦合器（303）和波长选择滤波器（321,322）的控制器（340），根据信号处理器（330）的结果产生控制信号的控制器（340），光放大和衰减 （310）根据控制器（340）向第二光学抽头（302）提供信号。
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公开(公告)号：KR1020010035567A
公开(公告)日：2001-05-07
申请号：KR1019990042199
申请日：1999-10-01
Applicant: 한국전자통신연구원
IPC: G02B6/28
Abstract: PURPOSE: An optical add-drop multiplexer for a Wave Division Multiple optical telecommunications system is provided to vary optical add-drop channels at random, improve the flexibility. CONSTITUTION: In an optical add-drop multiplexer, a first optical coupler(220) divides wave division multiple(WDM) optical signals and sends the divided signals to a first output port(222) and a second output port(223). A fiber bragg grating(241) reflects partial waves of the divided optical signals from the first output port(222) of the first optical coupler(220) and sends the waves to a third output port(224) of the first optical coupler(220). An optical wave combiner produces other optical channels and combines the newly produced channels. A second optical coupler(230) couples the optical signal from the fiber bragg grating(241) and the combined optical channels from the optical wave combiner. A first optical wave selector/divider selects parts of the optical signal from the second output port(223) of the first optical coupler(220) and produces the selected waves as the output. A second optical wave selector/divider selects parts of the optical signal from the third output port(224) of the first optical coupler(220) and produces the selected waves as the output.
Abstract translation: 目的：提供用于波分多光通信系统的光分插复用器，以随机改变光分插信道，提高灵活性。 构成：在光分插复用器中，第一光耦合器（220）划分波分复用（WDM）光信号，并将划分的信号发送到第一输出端口（222）和第二输出端口（223）。 光纤布拉格光栅（241）反射来自第一光耦合器（220）的第一输出端口（222）的划分的光信号的分波，并将波发送到第一光耦合器（220）的第三输出端口（224） ）。 光波组合器产生其他光通道并组合新产生的通道。 第二光耦合器（230）将来自光纤布拉格光栅（241）的光信号和来自光波合成器的组合光通道耦合。 第一光波选择器/分频器从第一光耦合器（220）的第二输出端口（223）选择光信号的部分，并产生选择的波作为输出。 第二光波选择器/分频器从第一光耦合器（220）的第三输出端口（224）选择光信号的部分，并产生选择的波作为输出。
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公开(公告)号：KR101565999B1
公开(公告)日：2015-11-05
申请号：KR1020130095854
申请日：2013-08-13
Applicant: 한국전자통신연구원
Inventor： 윤지욱
IPC: H04B10/275 , H04B10/03
Abstract: 보호절체를지원하는광 전달망에서의네트워크연결리사이즈방법이개시된다. 광전달망은 ODUflex(flexible Optical channel Data Unit) 신호(ODUflex(GFP))를수용한다. 그리고 HAO(Hitless Adjustment of ODUflex(GFP)) 절차의링크연결리사이즈(Link Connection Resize, LCR) 프로토콜은대역폭리사이즈(Bandwidth Resize, BWR) 프로토콜의개시를억제하는 BWR 억제정보를포함하는데, 이 BWR 억제정보에기초하여보호절체를위한보호경로상의노드들사이에서는 LCR 프로토콜만수행되고 BWR 프로토콜은수행되지않는다. 반면, 동작경로상의노드들사이에서는 LCR 프로토콜과 BWR 프로토콜을모두수행된다.
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公开(公告)号：KR1020130056820A
公开(公告)日：2013-05-30
申请号：KR1020120109398
申请日：2012-09-28
Applicant: 한국전자통신연구원
Abstract: PURPOSE: A delay measuring device and a method thereof are provided to correct delay errors generated according to frame transmission and reception in a second location when both-ways delay time is measured between a first and a second location. CONSTITUTION: An overhead insertion unit(42) inserts a time stamp into the overhead of a multi-frame transmitted from a first location to a second location. An overhead extraction unit(44) extracts the time stamp from the overhead of the multi-frame received from the second location. The time stamp includes delay error information from the second location. A delay measuring unit(40) measures both-ways delay time between the first location and the second location by using the inserted time stamp and the extracted time stamp. The delay measuring unit corrects the measured both-way delay time by using the extracted delay error information. [Reference numerals] (40) Delay measuring unit; (42) Overhead insertion unit; (44) Overhead extraction unit
Abstract translation: 目的：提供一种延迟测量装置及其方法，用于在第一和第二位置之间测量双向延迟时间时，校正根据第二位置的帧发送和接收产生的延迟误差。 构成：开销插入单元（42）将时间戳插入到从第一位置传输到第二位置的多帧的开销中。 开销提取单元（44）从从第二位置接收的多帧的开销提取时间戳。 时间戳包括来自第二位置的延迟误差信息。 延迟测量单元（40）通过使用插入的时间戳和提取的时间戳来测量第一位置和第二位置之间的双向延迟时间。 延迟测量单元通过使用提取的延迟误差信息来校正测量的双向延迟时间。 （附图标记）（40）延迟测量单元; （42）架空插入单元; （44）架空提取单元
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公开(公告)号：KR1020110068736A
公开(公告)日：2011-06-22
申请号：KR1020100010253
申请日：2010-02-04
Applicant: 한국전자통신연구원
IPC: H04L12/52
CPC classification number: H04L12/52 , H04L49/351 , H04L49/602
Abstract: PURPOSE: A method and apparatus for switching packet/TDM including a TDM circuit and a carrier Ethernet packet signal are provided to switch a TDM circuit signal and a carrier Ethernet signal and to transfer a packet without restriction. CONSTITUTION: A packet/TDM(Time Division Multiplexing) selection unit(310) classifies an Ethernet packet signal, which is received from an Ethernet matching unit(100), into a TDM signal. A packet switch(330) switches a signal in which the conversion of a TDM signal path is required. A TDM switch(350) switches the signal in which the conversion of the Ethernet packet signal path is required. A converter(370) performs the conversion of the Ethernet packet signal.
Abstract translation: 目的：提供一种用于切换包括TDM电路和载波以太网分组信号的分组/ TDM的方法和装置，以切换TDM电路信号和载波以太网信号，并且不受限制地传送分组。 分组：分组/ TDM（时分复用）选择单元（310）将从以太网匹配单元（100）接收的以太网分组信号分类为TDM信号。 分组交换机（330）切换需要TDM信号路径的转换的信号。 TDM开关（350）切换需要以太网分组信号路径的转换的信号。 A转换器（370）执行以太网分组信号的转换。
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