公开(公告)号：KR1020050065982A

公开(公告)日：2005-06-30

申请号：KR1020030097158

申请日：2003-12-26

Applicant: 한국전자통신연구원

Inventor： 박주영 ,  강신각

IPC: H04L29/06

CPC classification number: H04L65/80 ,  H04L69/163 ,  H04L69/326

Abstract: 본 발명은 스트림제어 전송프로토콜(SCTP)을 이용한 멀티미디어 서비스 품질 제공 방법에 관한 것으로, 상기 멀티미디어 서비스 품질 제공 방법은 SCTP를 통해 VoIP나 화상 회의와 같은 멀티미디어 서비스 응용을 제공할 때, 측정된 전송환경을 기반으로 하여 전송률을 조정하고, 감지된 대역폭을 기반으로 하여 코덱 또는 전송률을 다이나믹하게 변경함으로써, 보다 개선된 서비스 품질을 제공할 수 있게 된다.

公开(公告)号：KR1020050065980A

公开(公告)日：2005-06-30

申请号：KR1020030097156

申请日：2003-12-26

Applicant: 한국전자통신연구원

Inventor： 김은숙 ,  이종화 ,  강신각

IPC: G06F17/00 ,  G06Q50/10

Abstract: 본 발명은 인터넷 망에서 다자간 멀티미디어 컨퍼런스를 제어하는 방법 및 그 시스템을 개시한다.
본 발명에 의하면, 본 발명에 의하면, 컨퍼런스 제어 서버와 다수의 컨퍼런스 클라이언트가 인터넷을 통해 컨퍼런스를 제어하는 방법에 있어서, 클라이언트가 제어서버로 새로운 컨퍼런스 생성 요청, 제어 정보 또는 제어 권한에 대한 획득 및 조정 요구를 포함하는 내용을 XML 인스턴스로 요청하면 사용자 인증을 거쳐 요청된 오퍼레이션의 XML 인스턴스를 파싱하여 컨퍼런스 정보를 추출하고, 제어서버가 상기 추출된 컨퍼런스 정보로부터 해당되는 컨퍼런스에 대응하는 오퍼레이션이 실행되기 위한 정책정보와 사용자 권한 정보를 추출하고, 적합한 권한 및 정책 정보를 반영하여 수행된 오퍼레이션의 결과값을 XML 인스턴스로 생성하여 클라이언트로 전달하며, 요청 정보의 종류에 따라 소정의 응용 서버로 전달이 필요한 경우 응용 서버를 초기화시키� �� 시그널을 응용 서버로 전송하여, 이종간의 컨퍼런스 응용에게 간편한 제어 방법을 제공할 수 있어서 유무선 네트워크 상에서 서로 다른 시그널링 프로토콜을 사용하거나 서로 다른 운영체제를 사용하거나 서로 다른 컨퍼런스 응용을 통한 다자간 컨퍼런스 참여가 가능한 제어 방법을 제공하여 다자간의 멀티미디어 컨퍼런스의 제어를 원할히 할 수 있게 한다.

公开(公告)号：KR100462575B1

公开(公告)日：2004-12-17

申请号：KR1020020077381

申请日：2002-12-06

Applicant: 한국전자통신연구원

Inventor： 김은숙 ,  박진 ,  강신각

IPC: H04L12/28

Abstract: PURPOSE: A device for supplying QoS(Quality of Service) information based on an SIP(Session Initiation Protocol) and a method therefor are provided to supply an SIP UA(User Agent) that adds an interface role with a network as well as an application to support a call for supplying QoS information, thereby satisfying a user request to the QoS information. CONSTITUTION: An application manager module(240) receives and interprets QoS information, and calls an API(Application Program Interface) appropriate for a QoS network protocol. A UA core module(210) decides whether a QoS call is set according to the requested QoS information, interfaces an expansion SIP UA(200) with the application manager module(240), and encodes/decodes information on an SIP message and an SIP body. A QoS manager module(220) maps a user request of an SIP style transmitted from the UA core module(210), transmits the mapped user request, and performs the API.

Abstract translation: 目的：提供一种用于基于SIP（会话发起协议）提供QoS（服务质量）信息的设备及其方法，以提供添加与网络的接口角色的SIP UA（用户代理）以及应用 以支持用于提供QoS信息的呼叫，从而满足对QoS信息的用户请求。 构成：应用管理器模块（240）接收并解释QoS信息，并调用适合QoS网络协议的API（应用程序接口）。 UA核心模块（210）根据所请求的QoS信息决定是否设置QoS呼叫，将扩展SIP UA（200）与应用管理器模块（240）对接，并且对SIP消息和SIP的信息进行编码/解码 身体。 QoS管理器模块（220）映射从UA核心模块（210）发送的SIP风格的用户请求，发送映射的用户请求，并且执行API。

公开(公告)号：KR100453229B1

公开(公告)日：2004-10-15

申请号：KR1020020053622

申请日：2002-09-05

Applicant: 한국전자통신연구원

Inventor： 이종화 ,  이일진 ,  정옥조 ,  민경주 ,  강신각

IPC: H04L12/66

Abstract: PURPOSE: A method for supplying many additional telephone services over the Internet is provided to clarify services selected by a user as one service logic, and to transmit the service logic to a registration server through an SIP, thereby enabling the user to simultaneously select various additional services and receive a call service. CONSTITUTION: A system sets and manages a relation setup table between telephone additional services(201). A VoIP system internally manages the additional services as a service logic based on a CPL(Call Processing Language)(202). The VoIP system displays a GUI to which the additional services are supplied, for a user using a VoIP terminal(203). The VoIP system enables the user to select additional telephone services(204), and inputs a corresponding information value through a detailed menu(205). If the user clicks an OK button, an entire service logic is generated according to the CPL for the selected additional services(206). The selected additional services are displayed on the GUI(207). A VoIP application server of the VoIP system decides whether the user selects other additional service(208). If not, the VoIP application server transmits the service logic to a registration server to register the service logic(209). The user receives an Internet telephone service according to the registered service logic(210).

Abstract translation: 目的：通过因特网提供许多附加电话服务的方法被提供以将用户选择的服务阐明为一个服务逻辑，并且通过SIP将服务逻辑发送到注册服务器，从而使用户能够同时选择各种附加 服务并接收呼叫服务。 构成：系统设置和管理电话附加服务之间的关系设置表（201）。 VoIP系统在内部基于CPL（呼叫处理语言）（202）将附加服务管理为服务逻辑。 VoIP系统为使用VoIP终端的用户显示提供附加服务的GUI（203）。 VoIP系统使用户能够选择附加的电话服务（204），并通过详细的菜单（205）输入相应的信息值。 如果用户点击OK按钮，则根据所选附加服务的CPL生成整个服务逻辑（206）。 所选的附加服务显示在GUI（207）上。 VoIP系统的VoIP应用服务器决定用户是否选择其他附加服务（208）。 如果否，则VoIP应用服务器将服务逻辑发送到注册服务器以注册服务逻辑（209）。 用户根据注册的服务逻辑接收互联网电话服务（210）。

公开(公告)号：KR1020040049559A

公开(公告)日：2004-06-12

申请号：KR1020020077381

申请日：2002-12-06

Applicant: 한국전자통신연구원

Inventor： 김은숙 ,  박진 ,  강신각

IPC: H04L12/28

CPC classification number: H04L65/80 ,  H04L47/14 ,  H04L65/1006

Abstract: PURPOSE: A device for supplying QoS(Quality of Service) information based on an SIP(Session Initiation Protocol) and a method therefor are provided to supply an SIP UA(User Agent) that adds an interface role with a network as well as an application to support a call for supplying QoS information, thereby satisfying a user request to the QoS information. CONSTITUTION: An application manager module(240) receives and interprets QoS information, and calls an API(Application Program Interface) appropriate for a QoS network protocol. A UA core module(210) decides whether a QoS call is set according to the requested QoS information, interfaces an expansion SIP UA(200) with the application manager module(240), and encodes/decodes information on an SIP message and an SIP body. A QoS manager module(220) maps a user request of an SIP style transmitted from the UA core module(210), transmits the mapped user request, and performs the API.

Abstract translation: 目的：提供一种用于提供基于SIP（会话发起协议）的QoS（服务质量）信息及其方法的设备，以提供向网络和应用添加接口角色的SIP UA（用户代理） 以支持提供QoS信息的呼叫，从而满足对QoS信息的用户请求。 构成：应用程序管理器模块（240）接收和解释QoS信息，并调用适合于QoS网络协议的API（应用程序接口）。 UA核心模块（210）根据所请求的QoS信息决定是否设置了QoS呼叫，与应用管理模块（240）接口扩展SIP UA（200），对SIP消息和SIP协议进行编码/解码 身体。 QoS管理器模块（220）映射从UA核心模块（210）发送的SIP风格的用户请求，发送映射的用户请求，并执行API。

公开(公告)号：KR1020040043408A

公开(公告)日：2004-05-24

申请号：KR1020020071656

申请日：2002-11-18

Applicant: 한국전자통신연구원

Inventor： 박주영 ,  고석주 ,  강신각 ,  김대영

IPC: H04L12/725 ,  H04L12/927

CPC classification number: H04L47/805 ,  H04L45/10 ,  H04L45/302 ,  H04L45/3065 ,  H04L47/70 ,  H04L47/724

Abstract: PURPOSE: A routing apparatus for assuring internet quality of service and its method are provided to assure internet quality of service between a transmitter and a receiver by transmitting data after setting a path on each router in advance with a QoS data rate requested before data transmission. CONSTITUTION: According to the routing apparatus for assuring internet quality of service, a transmitter QoS edge routing unit(122) completes the first path setting with a QoS data rate to a next node by a path set signaling, and then transmits data through the first path source-reserved with a QoS data rate according to a data transmission request with the QoS data rate from a transmitter node(111). At least more than one QoS core routing unit(121) completes the second path setting with a QoS data rate to a next node by a path setting signaling by receiving information as to the QoS data rate from the transmitter QoS edge routing unit, and then transmits data through the source-reserved path with the QoS data rate according to the data transmission request with the QoS data rate from the transmitter QoS edge routing unit. And a receiver QoS edge routing unit(123) completes the third path setting with a QoS data rate to a next node by a path setting signaling by receiving the information as to the QoS data rate from the QoS core routing unit, and then transmits data to a receiver node(131) through the third path source-reserved with the QoS data rate according to the data transmission request with the QoS data rate from the QoS core routing unit.

Abstract translation: 目的：提供一种用于确保互联网服务质量的路由设备及其方法，用于在数据传输之前以所要求的QoS数据速率预先设置每个路由器上的路径之后通过发送数据来确保发射机和接收机之间的互联网质量。 构成：根据用于确保互联网服务质量的路由装置，发射机QoS边缘路由单元（122）通过路径集信令完成对下一个节点的QoS数据速率的第一路径设置，然后通过第一 路径源 - 根据具有来自发射机节点（111）的QoS数据速率的数据传输请求具有QoS数据速率。 至少多于一个的QoS核心路由单元（121）通过路径设置信令，通过从发射机QoS边缘路由单元接收关于QoS数据速率的信息，将具有QoS数据速率的QoS数据速率完成到下一个节点，然后 根据来自发射机QoS边缘路由单元的QoS数据速率的数据传输请求，通过源保留路径发送具有QoS数据速率的数据。 并且接收者QoS边缘路由单元（123）通过路径设置信令通过从QoS核心路由单元接收关于QoS数据速率的信息，以下一个节点的QoS数据速率完成第三路径设置，然后发送数据 通过具有来自QoS核心路由单元的QoS数据速率的数据传输请求，通过第三路径源 - 接收到QoS数据速率的接收机节点（131）。

公开(公告)号：KR100426306B1

公开(公告)日：2004-04-08

申请号：KR1020010078193

申请日：2001-12-11

Applicant: 한국전자통신연구원

Inventor： 현욱 ,  허미영 ,  강신각

IPC: H04L12/427

CPC classification number: H04L65/1006 ,  H04L29/06027 ,  H04L67/1002 ,  H04L67/1008 ,  H04L67/1036

Abstract: A load distribution is performed between session initiation protocol (SIP) servers in an intra domain. By employing a distribution process and a function-based server characterization, loads of a single representative proxy can be effectively distributed and a call processing capacity can be maximized while maintaining compatibility with existing proxies.

Abstract translation: 负载分配在域内的会话发起协议（SIP）服务器之间执行。 通过采用分发流程和基于功能的服务器表征，可以有效分配单个代表性代理的负载，并且可以最大化呼叫处理能力，同时保持与现有代理的兼容性。

公开(公告)号：KR1020030047543A

公开(公告)日：2003-06-18

申请号：KR1020010078193

申请日：2001-12-11

Applicant: 한국전자통신연구원

Inventor： 현욱 ,  허미영 ,  강신각

IPC: H04L12/427

CPC classification number: H04L65/1006 ,  H04L29/06027 ,  H04L67/1002 ,  H04L67/1008 ,  H04L67/1036

Abstract: PURPOSE: A method for distributively processing inter SIP server load in an intra domain is provided to characterize characteristics of each server and increase the convenience and the efficiency of service management. CONSTITUTION: It is judged whether a representative proxy of the corresponding domain transmits an SIP(Session Initiation Protocol) request message(S101). An SLD(SIP Load Distributor) server searches a registrar DB for location information of the corresponding user(S102). It is judged whether the registrar DB has the location information of the corresponding user(S104). If not, the SLD server sends a 'not found' response message to the representative proxy(S106). If so, the SLD server adds a search result record to the SIP request message(S108). A server having the lowest load is searched for in a load management table(S110). A load increment is reflected in a record to the server having the lowest load(S112). The SIP request message is transmitted to the retrieved server(S114).

Abstract translation: 目的：提供一种分散处理域内SIP服务器负载的方法，以表征每个服务器的特征，增加服务管理的便利性和效率。 构成：判断相应域的代表代理是否发送SIP（会话发起协议）请求消息（S101）。 SLD（SIP负载分配器）服务器在注册器DB中搜索相应用户的位置信息（S102）。 判断登记员DB是否具有相应用户的位置信息（S104）。 如果不是，SLD服务器向代理代理发送“未找到”响应消息（S106）。 如果是，SLD服务器将搜索结果记录添加到SIP请求消息（S108）。 在负载管理表中搜索具有最低负载的服务器（S110）。 负载增量反映在具有最低负载的服务器的记录中（S112）。 SIP请求消息被发送到检索到的服务器（S114）。

公开(公告)号：KR1020030046978A

公开(公告)日：2003-06-18

申请号：KR1020010077325

申请日：2001-12-07

Applicant: 한국전자통신연구원

Inventor： 박주영 ,  고석주 ,  김은숙 ,  강신각

IPC: H04L12/18

CPC classification number: H04L12/185

Abstract: PURPOSE: A method and a system for transmitting a group cast through a unicast network are provided to efficiently offer a group cast transmission service by composing a tree of an AL(Application Layer) through the unicast network. CONSTITUTION: A specific sender and a plurality of recipients read information about an address to be used in an AL multicast session from a DR(Dedicated Relay), and prepare the AL multicast session(20). The specific sender configures an AL multicast transmission tree among a plurality of the recipients by information about the address(21). The specific sender transmits data to the AL multicast session through the configured AL multicast transmission tree, and provides the data to a plurality of the recipients(22).

Abstract translation: 目的：提供一种通过单播网络发送组播的方法和系统，以通过组播单播网络的AL（应用层）树来有效地提供组播传输业务。 构成：特定的发送方和多个收件人从DR（专用中继）读取关于要在AL多播会话中使用的地址的信息，并准备AL多播会话（20）。 特定发送者通过关于地址（21）的信息来配置多个接收者中的AL组播传输树。 特定发送者通过配置的AL组播传输树将数据发送到AL组播会话，并将数据提供给多个接收者（22）。

公开(公告)号：KR1020020058636A

公开(公告)日：2002-07-12

申请号：KR1020000086750

申请日：2000-12-30

Applicant: 한국전자통신연구원

Inventor： 함진호 ,  강신각

IPC: H04Q3/52

Abstract: PURPOSE: A dynamic recovering method of an optical link damaged in an optical network is provided to shorten an optical path recovering time to the maximum by previously transmitting information required for recovering during a normal operation and simultaneously transmitting only an identifier for the failure to each optical switch in a multi-cast or a broadcast method when there occurs the failure in an optical link. CONSTITUTION: An optical path set-up server transmits a suitable optical switch control command to every optical switch participating in construction of a path in order to set up a main path between two routers(S401). The optical path set-up server transmits a suitable optical switch preparation control command to every related optical switch participating in the path construction in order to set up a back-up path for the main path(S402). Upon receiving the optical switch preparation control command, an optical switching controller interprets an optical switch preparation control command and updates a mapping table of an optical link cut identifier and a connection operation of an optical input terminal and an optical output terminal for recovering related to the optical link cut identifier(S403). Each optical switch continuously checks whether there is an error on a link(S404) to confirm whether the link has been cut(S405). If there is an error on the link, the optical switch informs the optical path set-up server of an identifier of the link in question(S406). The optical path set-up server determines the type of the optical path passing the link in question and informs an optical switch to be participated in the path recovering of the failure identifier(S407). The optical switching controller of the optical switch which has received the failure identifier searches a failure identifier value from the mapping table and connects a required optical input terminal and output terminal for recovering(S408).

Abstract translation: 目的：提供在光网络中损坏的光链路的动态恢复方法，通过先前发送在正常操作过程中恢复所需的信息，将光路恢复时间缩短到最大，同时只将每个光纤的故障标识符 当发生光链路故障时，切换多播或广播方式。 规定：光路建立服务器向参与路径构造的每个光交换机发送适当的光交换控制命令，以建立两路由器之间的主路径（S401）。 光路建立服务器向参与路径构造的每个相关光开关发送合适的光开关准备控制命令，以建立主路径的备用路径（S402）。 在接收到光开关准备控制命令时，光切换控制器解释光开关准备控制命令，并更新光链路切断标识符的映射表和光输入端和光输出端的连接操作，用于与 光链路切断标识符（S403）。 每个光开关连续检查链路是否有错误（S404），以确认链路是否被切断（S405）。 如果链路上有错误，则光学开关通知光路建立服务器所述链路的标识符（S406）。 光路建立服务器确定通过所述链路的光路的类型，并通知光切换参与故障标识符的路径恢复（S407）。 已经接收到故障标识符的光交换机的光交换控制器从映射表中搜索故障标识符值，并连接所需的光输入终端和输出终端进行恢复（S408）。