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公开(公告)号：KR1020070061420A
公开(公告)日：2007-06-13
申请号：KR1020060123968
申请日：2006-12-07
Applicant: 한국전자통신연구원 , 삼성전자주식회사 , 에스케이브로드밴드주식회사 , 에스케이텔레콤 주식회사 , 주식회사 케이티
CPC classification number: H04L41/5041 , H04L43/026 , H04W76/11
Abstract: A wireless communication system for distributively managing service flow identifiers and a method for managing service flow identifiers in the system are provided to effectively release/correct non-uniform states of service flow identifiers due to an error when an erroneous system is recovered. RASs(Radio Access Stations)(110) control PSSs(Portable Subscriber Stations)(100) in an air interface. ACRs(Access Control Routers)(120) provide a radio communication service to the PSSs(100) through the RASs(110), and manage service flow identifiers used for identifying connection services with respect to the PSSs(100), respectively. When states of the service flow identifiers managed by the ACRs(120) are not uniform, a corresponding service flow identifier is released so that the state of the service flow identifiers managed by the ACRs(120) can become uniform.
Abstract translation: 提供用于分布式管理服务流标识符的无线通信系统和用于管理系统中的服务流标识符的方法，用于当错误系统恢复时由于错误而有效地释放/校正服务流标识符的不均匀状态。 RAS（无线电接入站）（110）在空中接口中控制PSS（便携式用户站）（100）。 ACR（接入控制路由器）（120）通过RAS（110）向PSS（100）提供无线电通信服务，并且分别管理用于识别关于PSS（100）的连接服务的服务流标识符。 当由ACR（120）管理的业务流标识符的状态不均匀时，释放对应的业务流标识符，使得由ACR（120）管理的业务流标识符的状态变得均匀。
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公开(公告)号：KR100684311B1
公开(公告)日：2007-02-16
申请号：KR1020040084753
申请日：2004-10-22
Applicant: 한국전자통신연구원 , 주식회사 케이티 , 에스케이브로드밴드주식회사 , 삼성전자주식회사 , 주식회사 케이티프리텔 , 에스케이텔레콤 주식회사
IPC: H04L12/28
Abstract: 본 발명은 패킷 액세스 라우터(PAR) 및 홈 에이전트(HA)를 포함하는 고속 휴대 인터넷(HPI) 망에서 이동 단말기간의 통신을 지원하는 방법에 관한 것이다.
고속 휴대 인터넷 망은 이동 단말기에 대한 이동성을 지원하기 위하여 모바일 아이피(Mobile IP) 구조를 수용하고 있으며, 액세스 망은 외부 에이전트(Foreign Agent) 기능을 수용하고, 게이트웨이 지점에 여러 개의 FA별 서브넷(Subnet)을 관리하는 홈 에이전트가 위치한다. 본 발명에서는, 이러한 구조에서 이동 단말기간의 단대단 통신 지원시 동일 서브넷에 속한 이동 단말기가 다른 서브넷으로 이동한 경우, HA나 FA의 라우팅 정보 및 ARP 정보를 통해 효율적인 라우팅을 지원하면서 단대단 서비스를 지원한다.
이를 통하여, 고속 휴대 인터넷 망에서 동일한 서브넷 또는 다른 서브넷에 속한 사용하는 이동 단말기간의 단대단 서비스를 효율적으로 지원할 수 있다.
고속 휴대 인터넷 망, 외부 에이전트, 홈 에이전트, 단대단 통신 지원-
公开(公告)号：KR1020060042045A
公开(公告)日：2006-05-12
申请号：KR1020050013113
申请日：2005-02-17
Applicant: 한국전자통신연구원 , 주식회사 케이티 , 에스케이브로드밴드주식회사 , 삼성전자주식회사 , 주식회사 케이티프리텔 , 에스케이텔레콤 주식회사
IPC: H04B7/26
CPC classification number: H04W12/06 , H04L63/061 , H04L63/0892 , H04L63/164 , H04L63/205 , H04W12/04 , H04W36/0038 , H04L9/30
Abstract: 본 발명은 무선 휴대 인터넷 시스템에서의 EAP 인증을 이용한 보안관계 협상 방법에 관한 것이다.
본 발명에 따른 보안 관계 협상 방법은, AAA 키로부터 생성된 마스터키를 이용하여 프리 마스터키를 생성하고, 상기 프리 마스터키로 인증키를 생성한 후, 보안관계 메시지를 이용하여 기지국과 가입자 단말간의 보안관계 협상을 수행한다. 가입자 단말은 보안관계 능력 요구 메시지를 통해 가입자 단말의 보안 능력 정보를 기지국에 제공하면, 기지국이 보안관계 능력 응답 메시지를 통해 보안관계 식별자와 부가 특성에 관한 보안관계 디스크립터를 가입자 단말에 전송하여 가입자 단말의 보안관계 능력을 수용한다.
전술한 구성에 의하여 본 발명은 핸드오버후에도 추가적인 메시지 교환없이 EAP 만을 위한 가입자 인증을 효과적으로 수행할 수 있다.
EAP, 무선 휴대 인터넷, PKM, 보안관계 능력-
公开(公告)号：KR1020040026056A
公开(公告)日：2004-03-27
申请号：KR1020020056572
申请日：2002-09-17
Applicant: 한국전자통신연구원
IPC: H04L12/46
CPC classification number: H04W36/14 , H04L61/2592 , H04W36/0038 , H04W36/0055 , H04W84/12
Abstract: PURPOSE: A handoff method between DSs(Distribution Systems) in a wireless LAN is provided to transmit user information to a mobile AP by using an IAPP(Inter-Access Point Protocol) and a message of a mobile IP, thereby preventing a new authentication procedure and minimizing user data loss. CONSTITUTION: A mobile station performs a re-association process(301). A new AP transmits an access request message to a local RADIUS server(LR1)(302). The local RADIUS server(LR1) returns an access accept message to an AP(303). The AP performs a TCP connection setup with a received FA(Foreign Agent)(304). The new AP transmits a send-security-block packet(307), receives an acknowledgement-security-block packet(308), and transmits a move-notify message to the FA(309). A wideband RADIUS server returns an IP address and security information as an access accept message(311). The FA transmits a binding update message(312). If security relation information does not exist, the FA transmits an access request message(313), receives an access response message from the wideband RADIUS server(314), and transmits an access request message to the local RADIUS server(LR1)(315). The local RADIUS server(LR1) returns an access response message(316). If a TCP connection setup is not performed, a TCP connection setup is carried out between a previous AP and a previous FA(317). The previous FA transmits a send-security-block packet(320), and transmits a move-notify message to the previous AP(322). The new AP returns a re-association response message to the mobile station(326). A packet is transmitted to the new FA(329), and is reversely capsulated(330). The new FA reversely capsulates the received packet, and transmits the packet to the new AP(332).
Abstract translation: 目的：提供无线LAN中的DS（分发系统）之间的切换方法，通过使用IAPP（接入点间协议）和移动IP的消息将移动AP发送用户信息，从而防止新的认证过程 并最大限度地减少用户数据丢失。 构成：移动台执行重新关联处理（301）。 新的AP向本地RADIUS服务器（LR1）发送访问请求消息（302）。 本地RADIUS服务器（LR1）向AP返回访问接受消息（303）。 AP利用接收到的FA（Foreign Agent）（304）进行TCP连接建立。 新AP发送发送安全块分组（307），接收确认安全块分组（308），并向FA发送移动通知消息（309）。 宽带RADIUS服务器作为访问接受消息返回IP地址和安全信息（311）。 FA发送绑定更新消息（312）。 如果不存在安全关系信息，FA发送接入请求消息（313），从宽带RADIUS服务器（314）接收接入响应消息，并向本地RADIUS服务器（LR1）发送接入请求消息（315） 。 本地RADIUS服务器（LR1）返回访问响应消息（316）。 如果没有执行TCP连接设置，则在先前的AP和之前的FA（317）之间执行TCP连接建立。 先前的FA发送发送安全块分组（320），并向前一AP发送移动通知消息（322）。 新的AP向移动台返回重新关联响应消息（326）。 分组被发送到新的FA（329），并且被反向封装（330）。 新的FA反向封装接收的分组，并将分组发送到新的AP（332）。
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公开(公告)号：KR100413965B1
公开(公告)日：2004-01-07
申请号：KR1020010086288
申请日：2001-12-27
IPC: H04L12/28
Abstract: PURPOSE: A method for restoring a session at a diameter server is provided to restore the existing activated session used by a subscriber in the case of losing session information of the subscriber due to a failure of a system and manage a dynamic address of the subscriber even after restoring the session of the subscriber. CONSTITUTION: A diameter server transmits activated session information to adjacent diameter nodes at a point when a session of a subscriber is activated(501). The diameter server inquires session information to the adjacent diameter node and receives responses from the adjacent diameter node(503-505). The diameter server stores the received session information by nodes(507). The diameter server classifies the stored session information by nodes according to session identifiers(509-513). The diameter server extracts and stores the session information to be restored, by using subscriber information(515-527).
Abstract translation: 目的：提供一种用于在直径服务器处恢复会话的方法，以在由于系统故障而丢失订户的会话信息并且甚至管理订户的动态地址的情况下恢复由订户使用的现有激活会话 在恢复用户的会话之后。 构成：直接服务器在用户的会话被激活时将激活的会话信息发送到相邻的直径节点（501）。 直径服务器向相邻直径节点查询会话信息并接收来自相邻直径节点的响应（503-505）。 直径服务器通过节点存储接收到的会话信息（507）。 直径服务器根据会话标识符按节点对存储的会话信息进行分类（509-513）。 直径服务器通过使用订户信息（515-527）提取并存储要恢复的会话信息。
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Patent Agency Ranking
公开(公告)号：KR100399576B1
公开(公告)日：2003-09-26
申请号：KR1020000054533
申请日：2000-09-18
Applicant: 한국전자통신연구원
IPC: H04W8/08
Abstract: PURPOSE: A method and a system for supporting simple IP(Internet Protocol) and mobile IP services in an IMT-2000(International Mobile Telecommunication in the year 2000) are provided to discriminate the simple IP service and the mobile IP service in a PDSN(Packet Data Service Node) in a mobile communication system, without modifying the specification or protocol of a mobile node. CONSTITUTION: If access network setup is performed through a wireless access network(103), PPP(Point-to-Point Protocol) link setup is performed among mobile nodes(101,102) and a PDSN(202) and an AAA(Authentication Authorization and Accounting)(206) to allocate a new address to the PPP. Based on the allocated address, the PDSN(202) performs PPP IPCP(IP Control Protocol) agreement. If an IP traffic is opened, whether the PDSN(202) corresponds to a mobile IP or a simple IP is discriminated. If the PDSN(202) corresponds to the mobile IP, the mobile IP is registered in a home agent(207) and a new IP address is allocated, then PPP IPCP re-agreement is performed with the mobile nodes(101,102) using the new IP address. If the PDSN(202) corresponds to the simple IP, the PDSN(202) performs simple IP processing.
Abstract translation: 目的：提供一种用于在IMT-2000（2000年国际移动电信）中支持简单IP（互联网协议）和移动IP业务的方法和系统，以区分PDSN中的简单IP业务和移动IP业务 分组数据业务节点），而不需要修改移动节点的规范或协议。 组成：如果通过无线接入网络（103）执行接入网络建立，则在移动节点（101,102）和PDSN（202）和AAA（认证授权和记帐）之间执行PPP（点对点协议） ）（206）为PPP分配新地址。 基于分配的地址，PDSN（202）执行PPP IPCP（IP控制协议）协议。 如果IP业务被打开，则鉴别PDSN（202）是对应于移动IP还是简单IP。 如果PDSN（202）与移动IP相对应，则将移动IP注册在归属代理（207）中并分配新的IP地址，然后使用新的移动节点（101,102）执行PPP IPCP重新协商 IP地址。 如果PDSN（202）对应于简单IP，则PDSN（202）执行简单的IP处理。
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公开(公告)号：KR1020020021825A
公开(公告)日：2002-03-23
申请号：KR1020000054533
申请日：2000-09-18
Applicant: 한국전자통신연구원
IPC: H04W8/08
Abstract: PURPOSE: A method and a system for supporting simple IP(Internet Protocol) and mobile IP services in an IMT-2000(International Mobile Telecommunication in the year 2000) are provided to discriminate the simple IP service and the mobile IP service in a PDSN(Packet Data Service Node) in a mobile communication system, without modifying the specification or protocol of a mobile node. CONSTITUTION: If access network setup is performed through a wireless access network(103), PPP(Point-to-Point Protocol) link setup is performed among mobile nodes(101,102) and a PDSN(202) and an AAA(Authentication Authorization and Accounting)(206) to allocate a new address to the PPP. Based on the allocated address, the PDSN(202) performs PPP IPCP(IP Control Protocol) agreement. If an IP traffic is opened, whether the PDSN(202) corresponds to a mobile IP or a simple IP is discriminated. If the PDSN(202) corresponds to the mobile IP, the mobile IP is registered in a home agent(207) and a new IP address is allocated, then PPP IPCP re-agreement is performed with the mobile nodes(101,102) using the new IP address. If the PDSN(202) corresponds to the simple IP, the PDSN(202) performs simple IP processing.
Abstract translation: 目的：提供一种支持IMT-2000（2000年国际移动通信）中的简单IP（Internet Protocol）和移动IP服务的方法和系统，以区分PDSN中的简单IP业务和移动IP业务（ 分组数据服务节点），而不修改移动节点的规范或协议。 构成：如果通过无线接入网络（103）进行接入网络建立，则在移动节点（101,102）和PDSN（202）和AAA（认证授权和计费）中执行PPP（点对点协议）链路建立 ）（206）向PPP分配新地址。 根据分配的地址，PDSN（202）执行PPP IPCP（IP控制协议）协议。 如果IP流量被打开，则PDSN（202）是否对应于移动IP或简单IP被区分。 如果PDSN（202）对应于移动IP，则将移动IP登记在归属代理（207）中，并且分配新的IP地址，然后使用新的IP移动节点（101,102）执行PPP IPCP重新协商 IP地址。 如果PDSN（202）对应于简单IP，则PDSN（202）执行简单的IP处理。
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公开(公告)号：KR100287803B1
公开(公告)日：2001-04-16
申请号：KR1019970058802
申请日：1997-11-07
Applicant: 한국전자통신연구원 , 에스케이텔레콤 주식회사
Abstract: PURPOSE: A method for controlling a fax incoming call of a radio data communication interworking apparatus in a digital mobile communication network is provided to perform a fax transmission service without a fax command or a loss of data by using a transmission hierarchy protocol and a variable fax server mode. CONSTITUTION: A radio data communication interworking device receives fax commands from a mobile terminal(413). The radio data communication interworking device determines whether a fax class is 2 or not(414). The radio data communication interworking device switches a current state to a fax mode and a fax state to a state of A if the fax class is 2(415). The radio data communication interworking device checks a modem response command if the fax class is not 2(416). The radio data communication interworking device switches the fax state to a state of B and transmits the fax commands to the modem if the radio data communication interworking device receives the modem response command(418). The radio data communication interworking device checks whether the fax state is a state of C, or not(423). The radio data communication interworking device receives data from the modem(419). The radio data communication interworking device checks whether the fax state is the state of B and the received data are message carrier signals(420). The radio data communication interworking device switches the fax state to the state of C if the radio data communication interworking device receives the message carrier signals(421). The radio data communication interworking device transmits the received data to the mobile terminal(422). An operating process of a fax server mode is performed if the fax state is the state of C(423).
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公开(公告)号：KR100287802B1
公开(公告)日：2001-04-16
申请号：KR1019970058801
申请日：1997-11-07
Applicant: 한국전자통신연구원 , 에스케이텔레콤 주식회사
Abstract: PURPOSE: A method for controlling a fax outgoing call of a radio data communication interworking apparatus in a digital mobile communication network is provided to perform a fax transmission service without a fax command or a loss of data by using a transmission hierarchy protocol. CONSTITUTION: Data are received from a mobile terminal(426). The received data is compared with a page stop command(427). A TCP response method is inactivated if the received data is the page stop command(429). The received data is compared with a page end command(439). A fax state is switched to a state of D if the received data is the page end command or the fax state is switched to a state of B if the received data is not the page end command(433). The received data are transmitted to a modem if the received data is not the page stop command and the fax state is compared with a state of C(440). The data are received from the modem(434) and the received data are compared with XOFF(435). A size of TCP window is determined as O if the received data are XOFF(436). The received data are compared with XON if the received data are not XOFF(437). The size of TCP window is recovered if the received data are XON(438). The received data are transmitted to the mobile terminal if the received data are not XOFF and the received data are not XON(439). The data are received if the fax state is the state of C(426). A fax command is received from the mobile terminal if the fax state is the state of B(441).
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公开(公告)号：KR1019990039266A
公开(公告)日：1999-06-05
申请号：KR1019970059298
申请日：1997-11-11
Applicant: 에스케이텔레콤 주식회사 , 한국전자통신연구원
Inventor： 문정모
IPC: H04B7/14
Abstract: 본 발명은 이동 교환기에서의 데이터 서비스 방법에 관한 것으로, 데이터 서비스는 이동 가입자가 이동국 단말에 연결한 개인용 컴퓨터나 팩시밀리를 이용하여 다른 가입자와 단대단 비동기 데이터 통신을 하거나 팩스를 송수신하는 서비스 방법에 관한 것이다.
본 발명에서는 기존의 음성 이동 통신 망에서 저렴한 개발 비용과 최소의 노력으로 이동 가입자들에게 데이터 서비스를 제공하기 위해 무선 데이터 서비스 연동 장치(IWF; Inter Working Function)를 이동 교환기의 부속 장치로 구성하였고 이동 교환기가 IWF를 제어하게 함으로써 IWF를 독립적인 망 장치로 구성하였을 때 이동 교환기와 IWF 사이의 통화로가 길어지고 많은 프로토콜이 필요하게 되어 망 자원의 낭비가 심해지는 문제점을 방지하게 하였다. 그리고 발, 착신 가입자 또는 발신 가입자의 서비스 옵션을 조사하여 데이터 서비스 요구로 판단되면 기존의 음성 호 제어 처리를 종료하고 데이터 서비스 호제어 처리와 IWF 정합 처리를 구동함으로써 새로운 데이터 서비스 추가에 따라 기존의 음성 호에 별 영향을 주지 않고 독립적으로 데이터 서비스를 제공할 수 있는 이동 교환기에서의 데이터 서비스 제어 방법이 제시된다.
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