公开(公告)号：KR1020070061235A

公开(公告)日：2007-06-13

申请号：KR1020060071527

申请日：2006-07-28

Applicant: 한국전자통신연구원

Inventor： 이훈 ,  유태환 ,  김정학 ,  권율 ,  김봉태

IPC: H04L12/28 ,  H04L12/851 ,  H04B10/25

Abstract: An apparatus and a method for managing traffic by using a VID(VLAN(Virtual LAN) Identification) in an EPON(Ethernet Passive Optical Network) are provided to allow a general commercialized switch or router to smoothly perform traffic management for numerous subscribers and subscriber services. A MAC lookup table(15) matches VIDs to be used within an EPON by MAC address and managing them. A service classification policy table(20) stores service classification references corresponding to service control parameters of each VID. A service control policy table(25) stores service policies to be provided according to each classified service. When a downlink packet is inputted, a MAC look-up module(30) looks up a VID corresponding to a MAC address of the corresponding downlink packet by referring to the MAC look-up table(15). The first service classifying module(35) classifies a VID service class of the downlink packet. The first service control module(40) provides a service of a downlink transmission flow according to the classified VID service class. A VID study module(50) studies VIDs through a packet frame of an uplink packet and updates the MAC look-up table(15). The second service classifying module(55) classifies a VID service class of the uplink packet. The second service control module(60) requests a service according to the classified VID service class in case of an uplink transmission flow.

Abstract translation: 提供EPON（以太网无源光网络）中通过使用VID（VLAN（虚拟LAN）识别）来管理流量的装置和方法，以允许一般的商用交换机或路由器平滑地执行多个用户和订户服务的流量管理 。 MAC查找表（15）匹配通过MAC地址在EPON内使用的VID并进行管理。 服务分类策略表（20）存储对应于每个VID的服务控制参数的服务分类引用。 服务控制策略表（25）存储根据每个分类服务提供的服务策略。 当下行链路分组被输入时，MAC查询模块（30）通过参考MAC查找表（15）查找对应于相应下行链路分组的MAC地址的VID。 第一服务分类模块（35）对下行链路分组的VID服务类进行分类。 第一服务控制模块（40）根据分类的VID服务类提供下行链路传输流的服务。 VID研究模块（50）通过上行链路分组的分组帧来研究VID，并更新MAC查找表（15）。 第二服务分类模块（55）对上行链路分组的VID服务类进行分类。 第二服务控制模块（60）在上行链路传输流的情况下根据分类的VID服务类请求服务。

公开(公告)号：KR1020070059894A

公开(公告)日：2007-06-12

申请号：KR1020060071517

申请日：2006-07-28

Applicant: 한국전자통신연구원

Inventor： 한경수 ,  은지숙 ,  권율

IPC: H04L9/32 ,  H04L9/08 ,  H04L12/22 ,  H04L12/28

CPC classification number: H04L9/088 ,  H04L9/002 ,  H04L9/0861 ,  H04L9/12 ,  H04L63/08 ,  H04L63/162

Abstract: A method for controlling a security channel in a MAC(Medium Access Control) security service network and a terminal for implementing the same are provided to improve communication efficiency by reducing a transmission rate of a message for encryption key distribution and to reduce a load of a system for generation and distribution of the encryption key through extension of life of the encryption key by repeatedly using one encryption key in a safe range. A method for controlling a security channel in a MAC security service network includes the steps of: sharing a use range and an upper bit initial value of an IV(Initial Vector) of an encryption algorithm between a transmitting side and a receiving side when the security channel is generated(502); generating an SA(Security Association) with the transmitting side by setting an AN(Association Number), a packet number(nextPN) as a lower bit value of the IV, and an SAK(Security Association Key)(504); varying the packet number whenever a frame is transmitted until all packet numbers are eliminated(506); and if all packet numbers are eliminated, after changing the upper bit value of the IV, performing the second step repeatedly(508).

Abstract translation: 提供了一种用于控制MAC（媒体访问控制）安全服务网络中的安全信道的方法和用于实现该安全信道的终端，以通过降低用于加密密钥分发的消息的传输速率来提高通信效率，并且减少 用于通过在安全范围内重复使用一个加密密钥来延长加密密钥的寿命来生成和分发加密密钥的系统。 一种用于控制MAC安全服务网络中的安全信道的方法包括以下步骤：当发送侧和接收侧之间共享加密算法的IV（初始向量）的使用范围和高位初始值时， 生成通道（502）; 通过设置AN（关联号），分组号（nextPN）作为IV的较低位值和SAK（安全关联密钥）（504），与发送侧生成SA（安全关联）; 每当发送帧直到所有分组号被消除时改变分组号（506）; 并且如果所有分组号被消除，则在改变IV的高位值之后，重复执行第二步骤（508）。

公开(公告)号：KR100681003B1

公开(公告)日：2007-02-09

申请号：KR1020050095137

申请日：2005-10-10

Applicant: 한국전자통신연구원

Inventor： 신동범 ,  권율 ,  김봉태

IPC: H04L12/28 ,  H04L12/24

Abstract: A band allocation apparatus for QoS assurance in an EPON(Ethernet Passive Optical Network) and a method thereof are provided to guarantee QoS by efficiently distributing upstream data transmitted to an OLT(Optical Line Terminal) from ONUs(Optical Network Units) according to priority. An OLT creates a bandwidth management table that collects the report information of all the ONUs(S400). Then, the OLT finds out a bandwidth(U1) available at the first priority(P1) among all available upstream bandwidths(S401). The OLT confirms whether "S1", a bandwidth amount required at the first priority, is larger than or equal to "U1"(S402). If "S1" is larger than or equal to "U1", the OLT distributes the bandwidth "U1", assigned to the first priority(P1), to "Ri1", which has requested the bandwidth of the first priority(P1), by using a packet scheduling algorithm based on a round robin method(S403). As "S1" is larger than or equal to "U1", the remaining bandwidth(BWREM1) of the bandwidth, assigned to the first priority(P1), becomes "0"(S404).

Abstract translation: EPON（以太网无源光网络）中用于QoS保证的频带分配装置及其方法被提供用于通过根据优先级从ONU（光网络单元）高效地分配向OLT（光线路终端）传送的上行数据来保证QoS。 OLT创建收集所有ONU的报告信息的带宽管理表（S400）。 然后，OLT在所有可用的上行带宽中找出在第一优先级（P1）处可用的带宽（U1）（S401）。 OLT确认“S1”（第一优先级所需的带宽量）是否大于或等于“U1”（S402）。 如果“S1” 大于或等于“U1”时，OLT将分配给第一优先级（P1）的带宽“U1”分配给已经请求第一优先级（P1）的带宽的“Ri1”， 使用基于循环方法的分组调度算法（S403）。 由于“S1” 大于或等于“U1”时，分配给第一优先级（P1）的带宽的剩余带宽（BWREM1）变为“0”（S404）。

公开(公告)号：KR100628299B1

公开(公告)日：2006-09-27

申请号：KR1020030097764

申请日：2003-12-26

Applicant: 한국전자통신연구원

Inventor： 장윤선 ,  조윤희 ,  이준기 ,  권율 ,  김광준

IPC: G02F1/03

Abstract: 광 변조기 바이어스 전압 제어 장치 및 방법이 개시되어 있다. 광 변조기 바이어스 전압 제어 장치는 광변조기의 평균 출력 전력을 검출하는 평균 전력 검출부 및 검출된 평균 출력 전력을 기준 전력과 비교하고, 검출된 평균 출력 전력이 기준 전력과 일치하도록 광변조기의 바이어스 전압을 조절하는 바이어스 전압 제어부를 포함하고, 광변조기 바이어스 전압 제어 방법은 광변조기의 평균 출력 전력을 검출하는 검출 단계, 검출된 평균 출력 전력을 기준 전력과 비교하는 비교 단계 및 검출된 평균 전력이 기준 전력과 일치하도록 광변조기의 바이어스 전압을 조절하는 제어 단계를 포함한다.

公开(公告)号：KR100608906B1

公开(公告)日：2006-08-08

申请号：KR1020040104351

申请日：2004-12-10

Applicant: 한국전자통신연구원

Inventor： 은지숙 ,  권율

IPC: H04B10/25 ,  H04L12/28 ,  H04L12/44

CPC classification number: H04L63/0428

Abstract: The present invention provides a method for detecting a security module for link protection in an EPON, wherein an OLT and an ONU in the EPON can check whether or not an encryption module is present in each other and check the configuration of each other in order to avoid loss of a message when the message is encrypted for link protection between the OLT and the ONU in the EPON.

公开(公告)号：KR100608902B1

公开(公告)日：2006-08-04

申请号：KR1020030092826

申请日：2003-12-18

Applicant: 한국전자통신연구원

Inventor： 권율 ,  이준기 ,  정지성 ,  김광준

IPC: H04B10/2581 ,  H04J14/02

Abstract: 본 발명은 고속통신서비스를 제공하는 파장 분할 다중화(WDM: Wavelength Division Multiplexing) 광전송 시스템에 대해서, 상기 광전송 시스템에 외장형으로 부착되어 저속의 동기식 디지탈 계위(SDH: Synchronous digital hierarchy) 신호 접속 요구를 효율적으로 수용할 수 있도록 하는 외장형 다중화 장치에 관한 것으로서, 상기 외장형 다중화 장치는, 저속의 신호를 고속의 신호로 시분할 다중화(TDM: Time Division Multiplexing)하고, WDM 광전송 시스템에서는 고속의 신호를 받아서 파장 분할 다중화만 수행하여도 되도록 함으로서, WDM 광전송 시스템에서 다양한 인터페이스 규격의 광 트랜스폰더를 갖추지 않아도 저속의 클라이언트 신호를 효율적으로 수용할 수 있게 한 것이다.
파장 분할 다중화(WDM), 시분할 다중화(TDM), 광 전송 시스템, SDH(Synchronous digital hierarchy), 광 트랜스폰더

公开(公告)号：KR100554169B1

公开(公告)日：2006-02-22

申请号：KR1020030082640

申请日：2003-11-20

Applicant: 한국전자통신연구원

Inventor： 윤지욱 ,  이현재 ,  권율

IPC: H04B10/00 ,  H04B10/25

CPC classification number: H04B10/07955 ,  H04B10/296

Abstract: An optical channel power equalizer for equalizing the per-channel power levels of a multi-channel optical signal is provided. The channel power equalizer includes an optical spectrum measurement unit that extracts a portion of the amplified optical signal and measures the per-channel power levels of the extracted optical signal; a controller that compares the measured power levels with a predetermined reference value, and determines to output the degrees of attenuation per channel based on differences between the measured per-channel power levels and the reference value; and a per-channel optical attenuation unit that attenuates the per-channel power levels of a plurality of input optical signals based on the degrees of attenuation and outputs the attenuated optical signals as the plurality of channels.

公开(公告)号：KR100537904B1

公开(公告)日：2005-12-20

申请号：KR1020030084984

申请日：2003-11-27

Applicant: 한국전자통신연구원

Inventor： 이준기 ,  조윤희 ,  이정찬 ,  명승일 ,  장윤선 ,  권율 ,  김광준 ,  주무정

IPC: H04B10/00 ,  H04B10/27

CPC classification number: H04J3/1611 ,  H04J14/0226 ,  H04J14/0246 ,  H04J14/025 ,  H04J14/0282

Abstract: An optical transponder which can be reconfigured in accordance with various types of client networks is provided. A client network interface transceiver includes a connector comprising a first connection terminal providing a unit transmitting and receiving a plurality of first clock signals, a plurality of second clock signals, and a plurality of data signals to and from the digital wrapper; a second connection terminal providing a unit transmitting and receiving a supervision/control signal and a CPU-related signal to and from the supervision/controlling unit; and a power source terminal providing a unit to which a power source is supplied. The client network interface transceiver multiplexes a client signal transmitted from the client network or demultiplexes a signal transmitted from an optical transmission network, outputs the client signal and the signal, and can be replaced through a front panel of the optical transponder line card in accordance with types of client networks.

公开(公告)号：KR1020040055290A

公开(公告)日：2004-06-26

申请号：KR1020020081929

申请日：2002-12-20

Applicant: 한국전자통신연구원

Inventor： 신종윤 ,  김형주 ,  정지성 ,  전경규 ,  권율

IPC: H04B10/07 ,  H04B10/2581

CPC classification number: H04B10/0793 ,  H04B2210/071 ,  H04J14/02

Abstract: PURPOSE: A maintenance apparatus of an optical transmission system and a method therefor are provided to perform maintenance function in an optical channel section layer, optical multi-section layer and optical transmission section layer. CONSTITUTION: An OCH(Optical CHannel) layer(13) transfers a tributary signal inputted from a tributary signal processor to multiple channels according to each wavelength. An OMS(Optical Multiplex Section) layer(12) multiplexes an optical signal of several wavelengths. An OTS(Optical Transmission Section) layer(11) transmits multiplexed light to a relay WDM(Wavelength-Division Multiplexing) system(20) through one optical fiber. An end office maintenance signal processor(14) monitors a trouble generated from an optical fiber of each layer or between layers. A relay optical transmission section layer(21) amplifies an optical signal received from the OTS layer(11) and transmits it to network. A relay maintenance signal processor(22) monitors a trouble generated from an optical fiber of the relay transmission section layer(21) or between the OTS layer(11) and the relay transmission section layer(21).

Abstract translation: 目的：提供一种光传输系统的维护装置及其方法，用于在光通道部分层，光多段层和光传输部分层中执行维护功能。 构成：根据每个波长，OCH（光通道）层（13）将从支路信号处理器输入的支路信号传送到多个通道。 OMS（光复用部分）层（12）复用几个波长的光信号。 OTS（光传输部）层11通过一根光纤将多路复用光发射到中继WDM（波分复用）​​系统（20）。 终端维护信号处理器（14）监视从每个层的光纤或层之间产生的故障。 中继光传输部分层（21）放大从OTS层（11）接收的光信号并将其发送到网络。 继电器维护信号处理器（22）监视从中继传输部分层（21）的光纤或OTS层（11）和中继传输部分层（21）产生的故障。

公开(公告)号：KR1020030056287A

公开(公告)日：2003-07-04

申请号：KR1020010086484

申请日：2001-12-28

Applicant: 한국전자통신연구원 ,  주식회사 케이티

Inventor： 권율 ,  한만수 ,  남홍순 ,  김정식 ,  김영섭

IPC: H04L12/50

Abstract: PURPOSE: An ATM(Asynchronous Transfer Mode) cell scheduling apparatus using a calendar and a method therefor are provided to enhance switch efficiency by scheduling the transmission of a traffic according to a traffic state of a switch output port when a cell inputted in an ATM switch is switched and by restraining a temporary overload state of the traffic. CONSTITUTION: A VC(Virtual Connection) buffer(20) stores cells by a VC unit, and transmits a storing address of a primary cell among corresponding VC cells. If the storing addresses of the cells are received from the VC buffer(20), a plurality of calendar schedulers(30-33) calculate start times of the cells and store the storing addresses of the cells in corresponding slots. A service scheduling(40) schedules whether a certain storing address of the cell is primarily started among the storing addresses of the cells, which are outputted from the calendar schedulers(30-33). VCQs(Virtual Output Queues)(60-63) read and store cells corresponding to the storing addresses of the cells, which are outputted from the service scheduling(40). A scheduler schedules and outputs the cells stored in the VCQs(60-63) according to the state of an output port and a service level.

Abstract translation: 目的：提供一种使用日历的ATM（异步传输模式）小区调度装置及其方法，用于当在ATM交换机中输入的小区时根据交换机输出端口的业务状况调度业务的传输来提高交换机的效率 通过限制流量的临时过载状态进行切换。 构成：VC（虚拟连接）缓冲器（20）通过VC单元存储单元，并且在相应的VC单元中发送主单元的存储地址。 如果从VC缓冲器（20）接收到单元的存储地址，则多个日历调度器（30-33）计算单元的开始时间，并将单元的存储地址存储在相应的时隙中。 业务调度（40）调度从日历调度器（30-33）输出的小区的存储地址中是否主要开始小区的某个存储地址。 VCQ（虚拟输出队列）（60-63）读取并存储与从服务调度（40）输出的单元的存储地址对应的单元。 调度器根据输出端口和服务级别的状态调度和输出存储在VCQ（60-63）中的单元。