公开(公告)号：KR100668673B1

公开(公告)日：2007-01-12

申请号：KR1020050112767

申请日：2005-11-24

Applicant: 한국전자통신연구원 ,  삼성전자주식회사 ,  에스케이브로드밴드주식회사 ,  에스케이텔레콤 주식회사 ,  주식회사 케이티

Inventor： 차재선 ,  윤철식

IPC: H04B7/26 ,  H04L1/18

CPC classification number: H04L1/18 ,  H04L1/0083 ,  H04W28/06 ,  H04W36/08 ,  H04W28/04

Abstract: A method for recovering ARQ data during handover in a portable Internet system is provided to make re-transmission of an ARQ block possible without ARQ reset by transmitting ARQ information, managed in a serving base station, to a target base station during the handover, thereby making handover possible without a loss. A method for recovering ARQ(Automatic Repeat reQuest) data during handover comprises the following steps of: receiving the first ARG data which is temporally stored in a serving base station, wherein the first ARQ data includes the first SDU(Service Data Unit), the first automatic repeat block request sequence number, and the first sub automatic repeat block request sequence number(S270); receiving the second ARG data from the serving base station, wherein the second ARG data includes the second SDU(S280); dividing the first SDU, received from the serving base station, into an ARQ units and transmitting divided units to a mobile terminal(S300); and dividing the second SDU, received from the serving base station, into units and transmitting divided units to the mobile terminal(S310).

Abstract translation: 提供了一种用于在便携式因特网系统中的切换期间恢复ARQ数据的方法，以便在切换期间通过在服务基站中管理的ARQ信息发送到目标基站，使ARQ块可以进行ARQ复位，从而可以进行ARQ复位。 使得切换成为可能而没有损失。 一种用于在切换期间恢复ARQ（自动重发请求）数据的方法包括以下步骤：接收临时存储在服务基站中的第一ARG数据，其中第一ARQ数据包括第一SDU（业务数据单元）， 第一自动重复块请求序列号，以及第一个子自动重复块请求序列号（S270）; 从服务基站接收第二ARG数据，其中第二ARG数据包括第二SDU（S280）; 将从服务基站接收的第一SDU划分成ARQ单元，并向移动终端发送分割单元（S300）; 以及将从所述服务基站接收的所述第二SDU划分为单元，并向所述移动终端发送分割单元（S310）。

公开(公告)号：KR1020060134774A

公开(公告)日：2006-12-28

申请号：KR1020050101802

申请日：2005-10-27

Applicant: 한국전자통신연구원 ,  삼성전자주식회사 ,  에스케이브로드밴드주식회사 ,  에스케이텔레콤 주식회사 ,  주식회사 케이티

Inventor： 조석헌 ,  윤철식 ,  이태용 ,  차재선

IPC: H04L9/32 ,  H04L9/30 ,  H04L9/08 ,  H04L12/28

CPC classification number: H04L9/3242 ,  H04L9/3249 ,  H04L2209/80

Abstract: A device for realizing a security function in an MAC layer of a wireless portable Internet system and an authentication method using the device are provided to appropriately perform an authentication function by defining a security sub-layer in the same layer. A message authentication module(14) authenticates a message transmitted/received between a subscriber station and a base station through a physical layer. An RSA(Rivest Shamir Adleman)-based authentication module(15) performs equipment authentication of the subscriber station or the base station. An EAP(Extensible Authentication Protocol) encapsulation/decapsulation module(17) performs an interface with a higher layer of the MAC layer. A control message processing module(13) generates a result message based on a result of the authentication performed by the RSA-based authentication module and/or the EAP encapsulation/decapsulation module, transmits the result message through the physical layer, and analyzes the result message received from a peer node through the physical layer. A PKM(Privacy Key Management) control management module(11) generates keys related to the authentication, and controls and manages the respective modules.

Abstract translation: 提供一种用于实现无线便携式因特网系统的MAC层中的安全功能的装置和使用该设备的认证方法，以通过在同一层中定义安全子层来适当地执行认证功能。 消息认证模块（14）通过物理层认证在用户站和基站之间发送/接收的消息。 基于RSA（Rivest Shamir Adleman）的认证模块（15）执行用户站或基站的设备认证。 EAP（可扩展认证协议）封装/解封装模块（17）执行与MAC层的较高层的接口。 控制消息处理模块（13）基于由基于RSA的认证模块和/或EAP封装/解封装模块执行的认证的结果生成结果消息，通过物理层发送结果消息，并分析结果 通过物理层从对等节点接收到的消息。 PKM（隐私密钥管理）控制管理模块（11）产生与认证相关的密钥，并对各个模块进行控制和管理。

公开(公告)号：KR1020050053857A

公开(公告)日：2005-06-10

申请号：KR1020030087094

申请日：2003-12-03

Applicant: 한국전자통신연구원 ,  삼성전자주식회사 ,  주식회사 케이티 ,  에스케이브로드밴드주식회사 ,  주식회사 케이티프리텔 ,  에스케이텔레콤 주식회사

Inventor： 조석헌 ,  박애순 ,  장성철 ,  차재선 ,  김경수

IPC: H04L9/32

CPC classification number: H04W12/06 ,  H04L9/32 ,  H04L29/06965 ,  H04L63/0892

Abstract: 본 발명은 고속 휴대 인터넷 시스템 및 이의 인증 방법에 관한 것이다.
본 발명에 따르면, 단말이 기지국에 장치 인증 및 사용자 인증에 대한 요구를 하면, 기지국은 해당 단말에 대한 장치 인증을 직접 수행하고, 장치 인증이 성공하였을 경우 패킷 액세스 라우터를 통해 인증 서버로 단말의 사용자 인증을 요청한다. 단말과 인증 서버 사이의 사용자 인증 단계가 끝나면 기지국은 해당 단말의 사용자 인증과 관련된 인증 정보들을 인증 정보 공간에 저장하고 단말에게 인증 키 및 인증 부가 정보들을 전송한다.
이와 같이 본 발명에 따르면, 휴대 인터넷 시스템이 장치 및 사용자 인증을 동시에 수행함으로써, 보다 안정적이고 강력한 보안을 유지할 수 있다.

公开(公告)号：KR100447058B1

公开(公告)日：2004-09-04

申请号：KR1020010057498

申请日：2001-09-18

Applicant: 한국전자통신연구원 ,  유티스타콤코리아 유한회사

Inventor： 차재선 ,  장문수 ,  박형준 ,  배달진 ,  장재득 ,  김대연

IPC: H04L12/433

Abstract: PURPOSE: A 2-phase weighted process cell scheduling method in an ATM(Asynchronous Transfer Mode) network is provided to maintain the fairness of a cell service by using the scheduling of both a time stamp type and a frame type. CONSTITUTION: A weight value, a timer value, and a certain queue threshold value are set up in a plurality of channels. The minimum timer channel having the minimum timer value is retrieved among a plurality of channels. Cells of the minimum timer channel are transmitted, and a certain value is assigned to a timer value of the minimum timer channel. The maximum queue channel having the longest queue length is retrieved among a plurality of channels. Cells of the maximum queue channel are transmitted, a weight value of the maximum queue channel is decreased by 1, and a certain value is assigned to the timer value of the maximum queue channel.

Abstract translation: 目的：提供ATM（异步传输模式）网络中的两阶段加权过程小区调度方法，以通过使用时间戳类型和帧类型两者的调度来维持小区服务的公平性。 构成：权重值，计时器值和特定队列阈值在多个通道中建立。 在多个通道中检索具有最小定时器值的最小定时器通道。 最小定时器信道的信元被发送，并且某个值被分配给最小定时器信道的定时器值。 在多个通道中检索具有最长队列长度的最大队列通道。 传输最大队列信道的信元，最大队列信道的权重值减1，给最大队列信道的定时器值赋予一定的值。

公开(公告)号：KR100427578B1

公开(公告)日：2004-04-28

申请号：KR1020010081120

申请日：2001-12-19

Applicant: 한국전자통신연구원 ,  삼성전자주식회사

Inventor： 장재득 ,  차재선 ,  조승권 ,  장문수

IPC: H04L12/56

Abstract: PURPOSE: An ATM switch matching device of a wireless network control station in an IMT-2000 asynchronous system is provided to realize an extended area service by connecting sub-systems and forming a communication path. CONSTITUTION: A UTOPIA switch transmitter(212) receives an ATM cell from a core network and distributes it to a wireless network control station connecting/controlling unit(211). A UTOPIA switch receiver(217) receives an ATM cell for a call request transmitted from a base station and performs a multiplexing function. A usage control and OAM(Operation, Administration and Maintenance) processor(213) controls an amount of transmission data according to a transmittable amount and maintains a normal transmission state. A routing and multicasting processor(214) transfers an input cell to non-specific plural channels or to every output terminal for a broadcast and video service. An ATM switch mating unit(215) transmits and receives data by the unit of nibble by using an LVDS(Low Voltage Differential Signal). An ATM switch unit(2) performs an 16x16 switching function at the rate of 155Mbps and has a processing rate of 2.5Gbps. A controller(218) controls initialization of an ATM switch mating unit(1). An ATM UTOPIA mating unit(220) enables the UTOPIA switch transmitter(212) and the UTOPIA switch receiver(217) to perform a multiplexing or demultiplexing operation and has a transfer rate of 155Mbps. A memory unit(219) includes a flash ROM used for booting the controller(218), an SDRAM used for executing a program, and an SRAM used for channel mapping, a connection table and a buffer descriptor. An Ethernet mating unit(221) sets a communication path to the inside or the outside. A serial communication mating unit(222) executes a debugging operation.

Abstract translation: 目的：提供IMT-2000异步系统中无线网络控制站的ATM交换机匹配设备，通过连接子系统和形成通信路径来实现扩展区服务。 构成：UTOPIA交换机发送器（212）从核心网络接收ATM信元并将其分发给无线网络控制站连接/控制单元（211）。 UTOPIA交换机接收器（217）接收用于从基站发送的呼叫请求的ATM信元并执行复用功能。 使用控制和OAM（操作，管理和维护）处理器（213）根据可发送量来控制发送数据量并保持正常发送状态。 路由和多播处理器（214）将输入信元传送到非特定的多个信道或传送到每个输出终端用于广播和视频服务。 ATM交换机匹配单元（215）通过使用LVDS（低压差分信号）以半字节为单位发送和接收数据。 ATM交换单元（2）以155Mbps的速率执行16×16交换功能，处理速率为2.5Gbps。 控制器（218）控制ATM交换机配合单元（1）的初始化。 ATM UTOPIA接合单元（220）使UTOPIA开关发射器（212）和UTOPIA开关接收器（217）能够执行多路复用或多路分解操作，并具有155Mbps的传输速率。 存储器单元（219）包括用于引导控制器（218）的闪存ROM，用于执行程序的SDRAM以及用于通道映射的SRAM，连接表和缓冲区描述符。 以太网匹配单元（221）设置到内部或外部的通信路径。 串行通信匹配单元（222）执行调试操作。

公开(公告)号：KR100409219B1

公开(公告)日：2003-12-12

申请号：KR1020010082951

申请日：2001-12-21

Applicant: 한국전자통신연구원 ,  주식회사 현대시스콤

Inventor： 김승희 ,  지창용 ,  박순기 ,  김경수 ,  차재선 ,  안지환

IPC: H04W88/08

Abstract: PURPOSE: A method for controlling ATM switch duplexing within an RNC(Radio Network Controller) in a mobile communication system is provided to duplex boards and links related to switch control within the RNC, thereby continuously supplying a service even during a switching process at the request of an operator or when an error is generated in hardware or software. CONSTITUTION: An application layer performs initialization(401), and a middleware duplexing processor decides a duplexing state(402), to determine an operation mode(403) and a standby mode(404). In the operation mode(403), if the standby mode(404) is restarted, an SCP requests initial dump data of the operation mode(405). The operation mode extracts connection information(406), informs the standby mode of the initial dump data(407), and stores connection information for backup in a duplexing data region(408). If a connection setup/cancellation request is received from an ACP(409), an application layer of the operation mode generates backup data(410), and transmits a connection setup/cancellation processing result to the ACP(411), then requests duplexing data backup to the standby mode(412). The standby mode stores the connection information for backup in the duplexing data region(413), and informs the operation mode of a backup processing result(414).

Abstract translation: 目的：一种用于在移动通信系统中的RNC（无线电网络控制器）内控制ATM交换机双工的方法被提供给与RNC内的交换控制相关的双工单板和链路，从而即使在请求的切换过程期间也连续地提供服务 或者在硬件或软件中产生错误时。 构成：应用层执行初始化（401），并且中间件双工处理器决定双工状态（402），以确定操作模式（403）和待机模式（404）。 在操作模式（403）中，如果待机模式（404）被重新启动，则SCP请求操作模式的初始转储数据（405）。 操作模式提取连接信息（406），将初始转储数据（407）通知给待机模式，并将用于备份的连接信息存储在双工数据区域（408）中。 如果从ACP（409）接收到连接建立/取消请求，则操作模式的应用层生成备份数据（410），并将连接建立/取消处理结果发送到ACP（411），然后请求双工数据 备份到待机模式（412）。 备用模式将用于备份的连接信息存储在双工数据区域（413）中，并将操作模式通知给备份处理结果（414）。

公开(公告)号：KR1020030056104A

公开(公告)日：2003-07-04

申请号：KR1020010086265

申请日：2001-12-27

Applicant: 한국전자통신연구원 ,  주식회사 현대시스콤

Inventor： 조승권 ,  장문수 ,  장재득 ,  박형준 ,  차재선

IPC: H04L12/28

CPC classification number: H04L12/5601 ,  H04L2012/5652 ,  H04L2012/5672

Abstract: PURPOSE: A call processing apparatus using a multiplexing/demultiplexing device of an ATM(Asynchronous Transfer Mode) cell is provided to efficiently transmit data because data transmission capability is changed according to the states of a plurality of call control processors when multiplexing and demultiplexing operations are achieved, by dynamically varying weight values of the call control processors according to call throughput. CONSTITUTION: A plurality of call control processors(22) dynamically vary weight values for changing a data processing speed, according to call throughput, and process transmitted call request. A multiplexing/demultiplexing unit(23) multiplexes or demultiplexes an ATM cell with respect to the call request provided through the call control processors(22), and transmits the multiplexed or demultiplexed ATM cell. The multiplexing/demultiplexing unit(23) checks a priority bit of the ATM cell, and successively transmits the demultiplexed ATM cell to the corresponding call control processor from an ATM cell with a high priority.

Abstract translation: 目的：提供一种使用ATM（异步传输模式）小区的复用/解复用装置的呼叫处理装置，用于有效地发送数据，因为当复用和解复用操作是根据多个呼叫控制处理器的状态而改变数据传输能力 通过根据呼叫吞吐量动态地改变呼叫控制处理器的权重值来实现。 构成：多个呼叫控制处理器（22）根据呼叫吞吐量动态地改变用于改变数据处理速度的权重值，并处理发送的呼叫请求。 复用/解复用单元（23）针对通过呼叫控制处理器（22）提供的呼叫请求复用或解复用ATM信元，并发送多路复用或解复用的ATM信元。 复用/解复用单元（23）检查ATM信元的优先级位，并从高优先级的ATM信元依次发送解复用的ATM信元到相应的呼叫控制处理器。

公开(公告)号：KR102110328B1

公开(公告)日：2020-05-14

申请号：KR1020140051055

申请日：2014-04-28

Applicant: 한국전자통신연구원

Inventor： 김은경 ,  차재선 ,  박재준 ,  이현 ,  임광재 ,  장성철

IPC: H04W16/04 ,  H04W28/04 ,  H04B7/26

公开(公告)号：KR101882489B1

公开(公告)日：2018-07-27

申请号：KR1020120145553

申请日：2012-12-13

Applicant: 한국전자통신연구원 ,  조선대학교산학협력단

Inventor： 김원익 ,  김은경 ,  김성경 ,  장성철 ,  차재선 ,  윤미영 ,  김석기 ,  이현 ,  윤철식 ,  임광재 ,  신석주

IPC: H04W48/08 ,  H04W48/16 ,  H04W88/04

Abstract: 중계모드또는기지국모드로동작할수 있는단말의통신방법이개시된다. 제1 기지국으로부터서비스받던단말은제1 기지국과의서비스연결불능을감지하는경우, 가용한인접기지국인제2 기지국을탐색한다. 상기단말은제2 기지국으로제1 기지국의기지국식별자를포함하는레인징요청메시지를전송한다.

公开(公告)号：KR101801944B1

公开(公告)日：2017-12-21

申请号：KR1020100083292

申请日：2010-08-27

Applicant: 한국전자통신연구원

Inventor： 김은경 ,  차재선 ,  김주희 ,  정수정 ,  이현 ,  임광재 ,  윤철식

IPC: H04J11/00 ,  H04B7/26 ,  H04W4/06

Abstract: 무선통신시스템에서다중반송파를지원하는 MBS(Multicast Broadcast Service)에서기지국에의한데이터전송방법을제공한다. 기지국에의한데이터전송방법은단말이어떤 E-MBS 서비스를요구하는지를지시하는스위칭요청메시지를상기단말로부터수신하는단계; 상기단말에설정된복수의반송파들간스위칭(switching) 시점에관한정보를포함하는스위칭응답메시지를상기단말로전송하는단계; 및상기스위칭시점으로부터상기 1차반송파를통해상기단말로상기 E-MBS 서비스대상에관한데이터를전송하는단계를포함한다. 또한, 무선통신시스템에서다중반송파를지원하는 MBS에서단말에의한데이터수신방법을제공한다. 단말에의한데이터수신방법은상기단말이어떤 E-MBS 서비스를요구하는지를지시하는스위칭요청메시지를기지국으로전송하는단계; 상기단말에설정된복수의반송파들간스위칭(switching) 시점에관한정보를포함하는스위칭응답메시지를상기기지국으로부터수신하는단계; 상기스위칭시점에 2차반송파(secondary carrier)로부터 1차반송파(primary carrier)로스위칭하는단계; 및상기 1차반송파를통해상기기지국으로부터상기 E-MBS 서비스대상에관한데이터를수신하는단계를포함한다.