Abstract:
PURPOSE: A base station selection method for the dynamic configuration of a mobile IPTV(Internet Protocol TV) service area in mobile communication, a system thereof, an apparatus, and computer readable medium are provided to reduce wireless resource allocated in MBS(Multicast Broadcast Service). CONSTITUTION: A service controller(140) transmits IPTV multicast service data to a terminal. The service controller replaces a zone A to a zone B according to a report message. The service controller reconfigures a new service area. The service controller transmits the mobile IPTV multicast service data to the terminal through the zone B. [Reference numerals] (130) Gateway; (140) Service controller; (AA) Communication network; (BB) Content server
Abstract:
PURPOSE: A mutual authentication system and method for mobile terminals are provided to exchange data only between authenticated objects by using challenges between a mobile terminal, which is an object of a mutual authentication system, and an authentication server. CONSTITUTION: An authentication agent(120) transmits a first challenge signal to a mobile terminal(110)(111). The mobile terminal transmits a first answer signal as a response about the first challenge signal to the authentication agent(112). The authentication agent transmits a query signal to an authentication server(130)(113). The authentication server transmits a second challenge signal as the response about the query signal to the authentication agent(114). The authentication agent transmits a second response signal to the authentication server(115). The authentication server transmits a first acknowledgement and encryption data to the authentication agent(116). The authentication agent transmits a second acknowledgement related to a mobile terminal to the mobile terminal(117).
Abstract:
PURPOSE: A confidence security device and method thereof are provided to perform integrity authentication about each boot roader, operating system, and application when booting the IPTV set-top box. CONSTITUTION: Power source of an IPTV set-top box is turned on(S102). An RTM/RTV(Root of Trusted for Measurement/Root of Trusted for Verification) is operated(S104). An integrity of a boot loader is verified(S108). The boot loader is processed(S110). The integrity of an operating system is verified(S114). The operating system is processed(S116). The integrity of application is verified after completing a booting process(S122).
Abstract:
PURPOSE: A service signal receiving apparatus of IPTV is provided to enable an IPTV service subscriber to receive an IPTV service through a general terminal without mounting a middleware for an IPTV service. CONSTITUTION: A network access interface unit(201) receives a service signal from an IPTV service network. A service signal processor classifies the service signal into broadcasting content. The service signal processor converts broadcasting content in an application program type. A terminal access interface unit(206) transfers broadcasting content to a subscriber terminal.
Abstract:
PURPOSE: A time synchronizing system and a time synchronizing method in a fixed integration network are provided to receive time information and delay time information between a ToD gateway and a terminal using only a synchronizing message or a general data message and an ACK message. CONSTITUTION: A delay requesting apparatus transmits a delay requiring message of data frame form to a delay response apparatus(S31). The delay response apparatus transmits an ACK message about the delay requiring message to the delay requesting apparatus(S32). The delay requesting apparatus transmits a synchronizing message to the delay response apparatus(S33). The delay response apparatus transmits the ACK message about the synchronizing message to the delay requesting apparatus(S34). The delay requesting apparatus transmits the synchronizing message including time information to the delay response apparatus(S35). The delay response apparatus transmits the synchronizing message including the time information to the delay requesting apparatus(S36).
Abstract:
An apparatus for managing circuit and packet traffic and a method thereof are provided to classify a received data packet into each flow per a period and differentially perform scheduling according to a band of the classified flow, thereby improving efficiency. A received data packet is analyzed(S100). And the data packet is classified per a predetermined number of flows according to a preset classification reference(S200). Respective bands about the classified flows are measured(S400). And the measured band is compared with a reference band(S500). Data packets included in a selected flow are re-sorted based on a small classification reference(S600). Scheduling is performed based on period information of the data packet included in the flows(S700).
Abstract:
본 발명은 루트 브리지(이하 루트 스위치)와 복수개의 일반 브리지(이하 일반 스위치)로 구성되는 이더넷 스위치 망에서 루트 스위치와 루트 스위치를 이용한 스위치 고유 식별 값 할당 방법에 관한 것으로 스위치망을 구성하는 각각의 일반 스위치 별로 고유한 식별 값을 할당하는 장치 및 방법에 관한 것이다. 본 발명에 따른 루트 스위치는 일반 스위치로부터의 스위치 식별 값 할당 요청을 수신하는 스위치 식별 값 할당 요청 메시지 수신부, 요청에 대한 할당 결과를 다시 일반 스위치로 통보하는 스위치 식별 값 할당 결과 메시지 송신부 및 루트 스위치에서 관리하는 스위치 식별 값 저장 테이블로 구성되고 일반 스위치는 루트 스위치로 스위치 식별 값의 할당을 요청하는 스위치 식별 값 할당 요청 메시지 송신부 및 루트 스위치가 보낸 스위치 식별 값 할당 결과를 수신하는 스위치 식별 값 할당 결과 메시지 수신부로 구성된다. 본 발명에 따른 스위치 식별 값 할당 방법은 스패닝 트리 프로토콜(STP:spanning tree protocol)에 따라 결정된 루트 스위치에서 중앙 집중적인 방법으로 분배하므로 중복된 스위치 식별 값의 할당의 염려가 없으며, 그로 인해 가입자 망을 구성하는 각 스위치들에게 할당된 스위치 식별 값의 관리 또한 용이하다. 스위치 식별값, 루트 스위치, 스패닝 트리 프로토콜, 이더넷.
Abstract:
PURPOSE: A switching system controlling system and method is provided to reduce a hardware dependency of a switch control firmware, and to use the switch control firmware in a system in which many functions of the switch control firmware are changed. CONSTITUTION: The system comprises an input processor(100), a data storage(400), the first API(Application Program Interface, 200), and the second API(500). The input processor(100) receives data request on an operation state of a switching system and a function control request of the switching system, and calls an independent API corresponding to the request. The data storage(400) records at least one among state data of the switching system, form data, state data of a port and a link, and traffic flow control data. The first API(200) calls a function for performing a direct access control for a hardware component relating to a request function, and outputs a function execution result. The second API(500) performs a direct access control of a switch component comprising the hardware component in response to the function called by the first API(200), and transmits the result to the first API(200).
Abstract:
PURPOSE: An OAM(Operating And Management) processing method in an ATM(Asynchronous Transfer Mode)-based MPLS(Multi Protocol Label Switch) system is provided to offer an OAM function requested between a router and a subscriber network and offer an OAM function with respect to an ATM service in the ATM-based MPLS system. CONSTITUTION: Channel information set up through an IPC(Inter Processor Communication) between an FE(Forwarding Engine)(31) and an MSC(MPLS Service Controller)(34) is stored in a table. A service type is judged from the formed channel table whenever an OAM cell is inputted to a specific channel. If the received OAM cell is an OAM cell inputted to an LSP(Label Switched Path) channel, the OAM cell is transmitted to the FE(31) through a PCI(Peripheral Component Interconnect). If the received OAM cell is an OAM cell inputted to an ATM channel, the OAM cell is transmitted to an input and output buffer switch(32) through a UTOPIA(Universal Test and Operations PHY Interface for ATM). The OAM process with respect to the LSP channel and the ATM channel is simultaneously performed in one system. Various OAM function are embodied between the FE(31) and a node of a subscriber network through the IPC from the MSC(34).