公开(公告)号：KR1020130063633A

公开(公告)日：2013-06-17

申请号：KR1020110130083

申请日：2011-12-07

Applicant: 한국전자통신연구원 ,  성균관대학교산학협력단

Inventor： 정광렬 ,  양미정 ,  박애순 ,  정민영 ,  배성재 ,  구자헌

IPC: H04W88/06 ,  H04L27/26 ,  H04W92/18

CPC classification number: H04W88/04 ,  H04W76/14

Abstract: PURPOSE: A transmission and reception method for direct communication between the terminals is provided to directly support direct communication between the terminals in a mobile communication system. CONSTITUTION: A first switching unit(410) determines the application of DFT(Discrete Fourier Transform) according to a transmission method selected based on information for selecting a transmission method. A second switching unit(420) applies the P/S(Parallel-to-Serial) of a frequency surface or the P/S of a time surface according to the selected transmission method. The first switching unit controls the application of DFT for a modulation symbol outputted from a modulation symbol mapping unit. The second switching unit applies the P/S of the frequency surface of the P/S of a time surface to the output of a CP(Cyclic Prefix) adding unit. [Reference numerals] (210) Demodulation symbol mapping unit; (211) DFT unit; (220) Subcarrier mapping unit; (230) IFFT unit; (240) CP addition unit; (251) Frequency on-plane P/S unit; (252) Time on-plane P/S unit; (260) DAC unit; (270) RF transmission unit; (410) First switching unit; (420) Second switching unit; (AA) Transmission data; (BB,EE) General signal; (CC,FF) D2D signal; (DD) SC-FDMA/OFDMA transmission signal

Abstract translation: 目的：提供用于终端之间的直接通信的发送和接收方法，以直接支持移动通信系统中终端之间的直接通信。 构成：第一切换单元（410）根据基于用于选择发送方法的信息选择的发送方法来确定DFT（离散傅立叶变换）的应用。 第二切换单元（420）根据所选择的传输方式应用频率表面的P / S（并行到串行）或时间表面的P / S。 第一切换单元控制从调制符号映射单元输出的调制符号的DFT的应用。 第二开关单元将时间表面的P / S的频率表面的P / S施加到CP（循环前缀）添加单元的输出。 （附图标记）（210）解调符号映射单元; （211）DFT单位; （220）子载波映射单元; （230）IFFT单位; （240）CP添加单元; （251）平面P / S单位; （252）时间平面P / S单位; （260）DAC单元; （270）RF传输单元; （410）第一开关单元; （420）第二开关单元; （AA）传输数据; （BB，EE）一般信号; （CC，FF）D2D信号; （DD）SC-FDMA / OFDMA传输信号

公开(公告)号：KR1020030090967A

公开(公告)日：2003-12-01

申请号：KR1020020028866

申请日：2002-05-24

Applicant: 한국전자통신연구원 ,  주식회사 케이티

Inventor： 김영희 ,  정민영 ,  전병천 ,  김대영

IPC: H04L12/28

CPC classification number: H04L45/50 ,  H04L45/28 ,  H04L45/30

Abstract: PURPOSE: An ER-LSP(Explicit Routed-Label Switched Path) management method for admitting the fault of an MPLS(Multi Protocol Label Switching) system and an apparatus therefor are provided to prevent that unnecessary control messages are generated by the resetting of all ER-LSPs by managing LDP(Label Distribution Protocol) session information and state information according to the ER-LSPs and resetting only a corresponding ER-LSP by stored information when an LDP session is connected after a system and link fault is removed. CONSTITUTION: An ER-LSP database(40) stores an ER-LSP ID, an ER-LSP state, link information, and a link state with respect to each ER-LSP. An ER-LSP setup/release management unit(20) manages the setup and release of the ER-LSP. A state informing block performs a line recovery and LDP session setup informing function and a link fault and LDP session release informing function. If the fault of the LDP session and link is sensed by the state informing block, an ER-LSP fault management unit(60) performs the fault management function of the ER-LSP, releases assigned resources, and releases internal switch connection setup. If the state of the ER-LSP is changed by the ER-LSP setup/release management unit(20) and the ER-LSP fault management unit(60), an ER-LSP state management unit(30) changes ER-LSP state information and LDP session information of the ER-LSP database(40). When the LDP session setup is sensed by the state informing block, an ER-LSP resetting task block(90) requests resetting with respect to the ER-LSP of the setup state and the ER-LSP of a down-state.

Abstract translation: 目的：提供一种用于承认MPLS（多协议标签交换）系统及其装置的故障的ER-LSP（显式路由标签交换路径）管理方法，以防止所有ER的复位产生不必要的控制消息 -LSP通过根据ER-LSP管理LDP（标签分发协议）会话信息和状态信息，并且在系统和链路故障被去除之后连接LDP会话时，通过存储的信息仅重置相应的ER-LSP。 构成：ER-LSP数据库（40）存储关于每个ER-LSP的ER-LSP ID，ER-LSP状态，链路信息和链路状态。 ER-LSP建立/释放管理单元（20）管理ER-LSP的建立和释放。 状态通知块执行线路恢复和LDP会话建立通知功能以及链路故障和LDP会话释放通知功能。 如果状态通知块检测到LDP会话和链路的故障，则ER-LSP故障管理单元（60）执行ER-LSP的故障管理功能，释放分配的资源，释放内部交换机的连接建立。 如果ER-LSP建立/释放管理单元（20）和ER-LSP故障管理单元（60）改变了ER-LSP的状态，则ER-LSP状态管理单元（30）改变ER-LSP状态 信息和LDP会话信息（40）。 当LDP会话建立由状态通知块感知时，ER-LSP复位任务块（90）请求针对建立状态的ER-LSP和下行状态的ER-LSP进行复位。

公开(公告)号：KR100382143B1

公开(公告)日：2003-05-09

申请号：KR1020000080914

申请日：2000-12-22

Applicant: 한국전자통신연구원 ,  주식회사 케이티

Inventor： 양선희 ,  윤호선 ,  정민영 ,  김숙연

IPC: H04L12/16

Abstract: PURPOSE: A method for providing extranet VPN(Virtual Private Network) service in an MPLS(Multi Protocol Label Switching) network is provided to offer intranet VPN service and extranet VPN service at the same time, without having an effect on an old service providing mechanism, by utilizing a route target and a VPN label variable used in existing MPLS VPN intranet service. CONSTITUTION: A VPN packet processing procedure at an MPLS terminal side is divided into egress forwarding, extra-gate forwarding, and relay forwarding. In order to effectively classify it, a VPN label is composed of a 2-bit label type classifier(401) and 18-bit label index information(402). The 2-bit label type classifier(401) indicates a forwarding method, and the 18-bit label index information(402) indicates an output IF or an index for a table for access filtering. If a VPN packet is received, an extranet gateway and egress LER checks the VPN label value carried with the received packet and recognizes which procedure to be executed.

Abstract translation: 目的：提供一种在MPLS（多协议标签交换）网络中提供外部网络VPN（虚拟专用网络）服务的方法，以同时提供内部网络VPN服务和外部网络VPN服务，而不会影响旧的服务提供机制 通过利用现有MPLS VPN内部网服务中使用的路由目标和VPN标签变量， 组成：MPLS终端侧的VPN报文处理流程分为出口转发，额外转发和中继转发。 为了有效分类它，VPN标签由2位标签类型分类器（401）和18位标签索引信息（402）组成。 2位标签类型分类器（401）指示转发方法，并且18位标签索引信息（402）指示输出IF或用于访问过滤的表的索引。 如果接收到VPN数据包，则Extranet网关和出口LER检查接收到的数据包携带的VPN标签值，并识别要执行的过程。

公开(公告)号：KR100572693B1

公开(公告)日：2006-04-19

申请号：KR1020030098350

申请日：2003-12-27

Applicant: 한국전자통신연구원

Inventor： 김재영 ,  안병준 ,  김영선 ,  김학서 ,  정민영

IPC: H04L12/741

Abstract: 1. 청구범위에 기재된 발명이 속한 기술분야
본 발명은 인터넷 프로토콜 패킷 룩업 방법에 관한 것임.
2. 발명이 해결하려고 하는 기술적 과제
본 발명은, IPv6 패킷을 처리하는 노드의 128비트 길이의 로컬 인터페이스 프리픽스 엔트리 정보만을 저장하는 작은 크기의 CAM과 64비트 이하의 네트워크 프리픽스 엔트리 정보를 저장하는 다단계로 구성되는 포워딩 테이블들을 이용하여 IPv6 패킷을 이용하여 통신을 하는 모든 네트워크 상의 노드에서 인입되는 IPv6 패킷을 최소 시간 내에 해당 목적지로 전송하기 위해 필요한 IPv6 인터넷 프로토콜 패킷 룩업 방법을 제공하고자 함.
3. 발명의 해결방법의 요지
본 발명은, 인터넷 프로토콜 패킷 룩업 방법에 있어서, 패킷 수신기로부터 패킷을 수신하여 헤더 정보를 추출하고, 추출된 헤더 정보에서 목적지 주소를 추출하여 CAM(Content Addressable Memory)에서 룩업을 수행하는 CAM 룩업단계; 상기 CAM 룩업단계에서 룩업 매칭이 발생하였는지를 확인하는 CAM 룩업 확인단계; 상기 CAM 룩업 확인단계에서, 매칭이 된 경우는 중앙 제어기로 패킷을 전달하고, 매칭이 되지 않은 경우는 상기 CAM에 저장된 인덱스를 이용하여 멀티비트-트라이 테이블 위치를 파악하여 해당 멀티비트-트라이 테이블을 이용하여 룩업을 수행하는 멀티비트-트라이 테이블 룩업단계; 상기 멀티비트-트라이 테이블 룩업단계에서 매칭이 발생하는지를 확인하는 멀티비트-트라이 테이블 룩업 확인단계; 및 상기 멀티비트-트라이 테이블 룩업 확인단계에서, 매칭이 발생하면 외부 네트워크로 전송해야할 패킷이므로 패킷 송신기로 패킷을 전달하고, 매칭이 발생하지 않으면 패킷을 폐기하거나 디폴트 루트로 패킷을 전송하는 패킷 처리단계를 포함함.
4. 발명의 중요한 용도
본 발명은 네트워크 시스템 등에 이용됨.
IPv6, 인터넷 프로토콜, 프리픽스, 룩업, 포워딩 정보, 로컬 인터페이스 정보, 인덱스, CAM

Abstract translation: 1.权利要求书中描述的发明所属的技术领域

公开(公告)号：KR100431208B1

公开(公告)日：2004-05-12

申请号：KR1020020028866

申请日：2002-05-24

Applicant: 한국전자통신연구원 ,  주식회사 케이티

Inventor： 김영희 ,  정민영 ,  전병천 ,  김대영

IPC: H04L12/28

Abstract: PURPOSE: An ER-LSP(Explicit Routed-Label Switched Path) management method for admitting the fault of an MPLS(Multi Protocol Label Switching) system and an apparatus therefor are provided to prevent that unnecessary control messages are generated by the resetting of all ER-LSPs by managing LDP(Label Distribution Protocol) session information and state information according to the ER-LSPs and resetting only a corresponding ER-LSP by stored information when an LDP session is connected after a system and link fault is removed. CONSTITUTION: An ER-LSP database(40) stores an ER-LSP ID, an ER-LSP state, link information, and a link state with respect to each ER-LSP. An ER-LSP setup/release management unit(20) manages the setup and release of the ER-LSP. A state informing block performs a line recovery and LDP session setup informing function and a link fault and LDP session release informing function. If the fault of the LDP session and link is sensed by the state informing block, an ER-LSP fault management unit(60) performs the fault management function of the ER-LSP, releases assigned resources, and releases internal switch connection setup. If the state of the ER-LSP is changed by the ER-LSP setup/release management unit(20) and the ER-LSP fault management unit(60), an ER-LSP state management unit(30) changes ER-LSP state information and LDP session information of the ER-LSP database(40). When the LDP session setup is sensed by the state informing block, an ER-LSP resetting task block(90) requests resetting with respect to the ER-LSP of the setup state and the ER-LSP of a down-state.

Abstract translation: 目的：提供一种用于接纳MPLS（多协议标签交换）系统故障的ER-LSP（显式路由标签交换路径）管理方法及其装置，以防止通过重置所有ER而产生不必要的控制消息 -LSP通过根据ER-LSP管理LDP（标签分发协议）会话信息和状态信息，并在移除系统和链路故障后连接LDP会话时通过存储的信息仅重置对应的ER-LSP。 组成：ER-LSP数据库（40）存储关于每个ER-LSP的ER-LSP ID，ER-LSP状态，链路信息和链路状态。 ER-LSP建立/释放管理单元（20）管理ER-LSP的建立和释放。 状态通知块执行线路恢复和LDP会话建立通知功能以及链路故障和LDP会话释放通知功能。 如果LDP会话和链路的故障由状态通知块检测到，则ER-LSP故障管理单元（60）执行ER-LSP的故障管理功能，释放分配的资源，并且释放内部交换机连接建立。 如果ER-LSP建立/释放管理单元（20）和ER-LSP故障管理单元（60）改变ER-LSP的状态，则ER-LSP状态管理单元（30）改变ER-LSP状态 信息和ER-LSP数据库（40）的LDP会话信息。 当状态通知块检测到LDP会话建立时，ER-LSP重置任务块（90）请求关于建立状态的ER-LSP和关闭状态的ER-LSP的重置。

公开(公告)号：KR100411248B1

公开(公告)日：2003-12-18

申请号：KR1020010084606

申请日：2001-12-26

Applicant: 한국전자통신연구원 ,  주식회사 케이티

Inventor： 정민영 ,  윤현식 ,  양선희

IPC: H04L12/28

Abstract: PURPOSE: A device and a method for adaptively controlling cell transfer in an ATM(Asynchronous Transfer Mode)-based MPLS(Multi-Protocol Label Switching) system are provided to periodically calculate an ATM cell transfer rate by using IP packet characteristics information varying according to given CR-LSP(Constraint-Route Label Switched Path) band information and time, and to reflect the calculated information on channel bands, thereby securing CR-LSP service quality and efficiently using system bands. CONSTITUTION: A database(40) manages data such as band characteristics according to CR-LSPs. A packet size statistics collector(30) collects IP(Internet Protocol) packet statistical information according to CR-LSPs from a delivery engine(80) to record the collected information in the database(40). A cell transfer rate calculator(50) calculates the current maximum cell transfer rate and an average transfer rate based on the information stored in the database(40), and stores the calculated rates in the database(40). A band converter(60) calculates change rates of the maximum and average cell transfer rates by using the information stored in the database(40), if update of the maximum and average cell transfer rates is notified from the cell transfer rate calculator(50), and updates prior maximum and average cell transfer rates stored in the database(40) according to the calculated change rates, then requests change of bands allocated to the CR-LSPs to a connection controller(70).

Abstract translation: 目的：提供一种用于在基于ATM（异步传输模式）的MPLS（多协议标签交换）系统中自适应地控制信元传输的设备和方法，以通过使用根据以下各项变化的IP分组特征信息来周期性地计算ATM信元传输速率 给出CR-LSP（约束路由标签交换路径）的带宽信息和时间，并反映计算出的信道带宽信息，从而保证CR-LSP服务质量并有效利用系统带宽。 构成：数据库（40）根据CR-LSP管理诸如频带特征的数据。 分组大小统计收集器（30）根据来自递送引擎（80）的CR-LSP收集IP（互联网协议）分组统计信息，以将收集的信息记录在数据库（40）中。 单元传送速度计算器（50）基于存储在数据库（40）中的信息计算当前的最大单元传送速率和平均传送速率，并将计算出的速率存储在数据库（40）中。 如果从小区转移率计算器（50）通知最大和平均小区转移率的更新，则频带转换器（60）通过使用存储在数据库（40）中的信息来计算最大和平均小区转移率的变化率 ，并且根据计算的改变速率更新存储在数据库（40）中的先前的最大和平均小区传送速率，然后请求将分配给CR-LSP的频带改变到连接控制器（70）。

公开(公告)号：KR1020020032937A

公开(公告)日：2002-05-04

申请号：KR1020000063714

申请日：2000-10-28

Applicant: 한국전자통신연구원 ,  주식회사 케이티

Inventor： 이재섭 ,  정민영 ,  김미회

IPC: H04L12/24

CPC classification number: H04L45/28 ,  H04L41/0668 ,  H04L45/50

Abstract: PURPOSE: A method for setting a connection and restoring a fault of the connection for protecting and restoring the connection in an MPLS(Multi Protocol Label Switching) network is provided to efficiently make use of network resources by setting up a protection connection using former connection fault information in case that an LSP(Label Switching Path) connection fault is generated in an MPLS network, and by rapidly restoring the connection fault using an MPLS FIS(Fault Indication Signal). CONSTITUTION: Information capable of triggering a fault restoration system is received(801). It is analyzed whether the information is an LDP connection setting request(802). In case that a new LSP connection setting is requested, a connection setting response is waited(803). In case that the connection setting response is received, it is checked whether there is link information which experienced a PD fault(804). In case that there's the information, a protection connection is set up(805). In case that a PSL receives fault notifying information(806), it is checked whether the protection connection has already set up(807). In case that the protection connection has already set up, a traffic is switched(809). In case that the protection connection has not already set up, the protection connection is set up(808). After that the switching is performed(809). In case that the PSL receives fault restoration notifying information(810), the protection connection is maintained(811).

Abstract translation: 目的：提供一种在MPLS（多协议标签交换）网络中设置连接和恢复连接故障以保护和恢复连接的方法，以通过使用以前的连接故障设置保护连接来有效利用网络资源 在MPLS网络中生成LSP（标签交换路径）连接故障的情况下，以及使用MPLS FIS（故障指示信号）快速恢复连接故障的信息。 构成：接收到能够触发故障恢复系统的信息（801）。 分析信息是否是LDP连接设置请求（802）。 在请求新的LSP连接设置的情况下，等待连接设置响应（803）。 在接收到连接设置响应的情况下，检查是否存在经历PD故障的链路信息（804）。 如果有信息，则建立保护连接（805）。 在PSL接收到故障通知信息（806）的情况下，检查保护连接是否已经建立（807）。 在保护连接已经建立的情况下，流量被切换（809）。 在保护连接尚未建立的情况下，保护连接建立（808）。 之后进行切换（809）。 在PSL接收故障恢复通知信息（810）的情况下，保护连接（811）。

公开(公告)号：KR1020120083970A

公开(公告)日：2012-07-27

申请号：KR1020110005231

申请日：2011-01-19

Applicant: 한국전자통신연구원 ,  성균관대학교산학협력단

Inventor： 천경열 ,  박애순 ,  최범곤 ,  배성재 ,  정민영

IPC: H04W72/12 ,  H04B7/14 ,  H04W72/04 ,  H04B7/26

CPC classification number: H04W72/1226 ,  H04L5/0032 ,  H04L5/0046 ,  H04W84/047 ,  H04W88/04 ,  H04B7/15542 ,  H04L1/0003 ,  H04L1/0026 ,  H04L5/0075 ,  H04W24/10

Abstract: PURPOSE: A wireless resource allocating device in a relay based mobile communication network and a method thereof are provided to enable a base station and a relay to perform scheduling with only channel state information about a connected user terminal which is connected to the base station and the relay, thereby eliminating a need of the base station and the relay which obtains CQI reports about other user terminals which are not connected. CONSTITUTION: A base station receives a CQI(Channel Quality Indicator) report about a first relay zone from a base station terminal in a second relay zone(S801). The base station receives a CQI report about a first access zone from the base station terminal in a second access zone. At the same time, the base station schedules a third relay zone(S802). The base station transmits data to the base station terminal by scheduling a third relay zone. At the same time, the base station schedules a third access zone(S803). The base station transmits data to the base station terminal in the third access zone(S804).

Abstract translation: 目的：提供一种基于中继的移动通信网络中的无线资源分配装置及其方法，使得基站和中继站能够仅使用与基站连接的连接用户终端的信道状态信息进行调度， 中继，从而不需要获得关于其他未连接的用户终端的CQI报告的基站和中继。 构成：基站从第二中继区域的基站终端接收关于第一中继区域的CQI（信道质量指示符）报告（S801）。 基站从第二接入区的基站终端接收关于第一接入区的CQI报告。 同时，基站安排第三中继区（S802）。 基站通过调度第三中继区向基站终端发送数据。 同时，基站安排第三个接入区（S803）。 基站向第三接入区域的基站终端发送数据（S804）。

公开(公告)号：KR1020120052074A

公开(公告)日：2012-05-23

申请号：KR1020100113529

申请日：2010-11-15

Applicant: 한국전자통신연구원 ,  성균관대학교산학협력단

Inventor： 천경열 ,  박애순 ,  구자헌 ,  배성재 ,  정민영

IPC: H04W36/30 ,  H04W36/32

CPC classification number: H04W36/32

Abstract: PURPOSE: A handover apparatus using reception signal strength and radial velocity and method thereof are provided to improve handover performance and to calculate radial velocity for each base station by measuring reception signal strength. CONSTITUTION: A reception signal strength measurement unit(212) measures the reception signal strength of handover candidate base stations and the reception signal strength of a base station. A reception signal speed measurement unit(214) measures the radial velocity of the handover candidate base stations and the radial velocity of the base station. When the reception signal strength of the base station is under reference reception signal strength, a handover processing unit(216) determines handover target base stations by using the measured reception signal strength and the measured radial velocity.

Abstract translation: 目的：提供使用接收信号强度和径向速度的切换装置及其方法，以通过测量接收信号强度来改善切换性能并计算每个基站的径向速度。 结构：接收信号强度测量单元（212）测量切换候选基站的接收信号强度和基站的接收信号强度。 接收信号速度测量单元（214）测量切换候选基站的径向速度和基站的径向速度。 当基站的接收信号强度处于基准接收信号强度时，切换处理单元（216）通过使用测得的接收信号强度和测量的径向速度来确定切换目标基站。

公开(公告)号：KR1020120049807A

公开(公告)日：2012-05-17

申请号：KR1020110113076

申请日：2011-11-02

Applicant: 한국전자통신연구원 ,  성균관대학교산학협력단

Inventor： 이미영 ,  구본태 ,  권영민 ,  배성재 ,  정민영

IPC: H04W48/16 ,  H04W16/32

CPC classification number: H04W48/16 ,  H04W16/32 ,  H04W36/20 ,  H04W84/045

Abstract: PURPOSE: A non-registered macro cell terminal searching method is provided to confirm a femto cell base station about existence of a macro cell terminal. CONSTITUTION: If a non-registered MUE(Macro cell User Equipment)(12) is generated, an S-MeNB(Source MeNB(Macro cell evolved-NodeB))(10) requests SI(System Information) of a neighbor femtocell BS(Base Station)(20). The non-registered MUE transfers system information of the neighbor femtocell BS to a macro cell base station. The macro cell base station transfers the existence of the non-registered MUE to the neighbor femtocell BS.

Abstract translation: 目的：提供一种非注册的宏小区终端搜索方法，以确定毫微微小区基站关于宏小区终端的存在。 规定：如果生成未注册的MUE（宏小区用户设备）（12），则S-MeNB（源MeNB（宏小区演进NodeB））（10）请求邻居毫微微小区BS（SI）的SI（系统信息） 基站）（20）。 未注册的MUE将相邻毫微微小区BS的系统信息传送到宏小区基站。 宏小区基站将未注册的MUE的存在传送到邻居毫微微小区BS。