Abstract:
PURPOSE: A method and system for providing a supplementary service and an intelligent network service in a PSTN are provided to provide a supplementary service to every subscriber regardless of capacity or performance of a PSTN exchange. CONSTITUTION: An origination side exchange(102) is connected to a caller terminal(101). A destination side exchange(104) is connected to a callee terminal(106). A database(103) stores subscriber supplementary service information and intelligent network service trigger data and provides information according to request from each exchange(102,104). An intelligent network SCP(Service Control Point)(105) stores intelligent network information and provides it according to request from exchanges(102,104). The callee terminal(106) receives a call.
Abstract:
PURPOSE: An apparatus and method for providing a mobile IP(Internet Protocol) function of a wireless LAN and a data transmission method of a mobile node using the mobile IP function are provided to allow a user to use a wireless Internet service by using a mobile IP function without re-setting an IP address by enabling an AP(Access Point) to perform a function performed by a mobile node. CONSTITUTION: An HA(Home Agent)(110) maintains position information of a mobile node(400) and transmits data to the mobile node(400) which has been moved and connected to an FA(Foreign Agent)(210). The FA(210) is connected to a wireless mobile communication network to which the mobile node has been wirelessly connected and transmits data to the mobile node(400) in cooperation with the HA(110). An AP2(200) stores an IP address of the FA(210) and information contained in an agent advertisement message by using the agent advertisement message the FA(210) periodically transmits. The AP2(200) determines whether the mobile node(400) requires a mobile IP function by using the stored IP address of the FA(210) and provides the mobile IP function to the mobile node(400) as required by the mobile node. In case that a host(310) transmits data to the mobile node(400), the host(310) first transmits data to the mobile node(400) through an IP network(300). Then, the IP network(300) transfers the data to the HA(110).
Abstract:
PURPOSE: A call cancellation/accounting transmission method in consideration of an idle state of an IWF(Inter-Working Function) is provided to include idle state information of a subscriber terminal in a call cancellation request message, and to immediately cancel a call if the subscriber terminal is not in the idle state, thereby preventing resource consumption in a memory. CONSTITUTION: An MSC(10) transmits a call cancellation message to a signal interface board(20), and requests call cancellation(S300). The signal interface board(20) requests resource cancellation of a main processor board(40)(S301). The main processor board(40) makes a data interface board(30) cancel network resources(S302), and confirms idle state information of a subscriber terminal, then checks whether the subscriber terminal is in an idle state(S303). If not, the main processor board(40) cancels subscriber resources including state information and accounting information for a call(S304), and transmits a resource cancellation response to the signal interface board(20)(S305). The signal interface board(20) includes the accounting information in the call cancellation message, and transmits the message to the MSC(10)(S306).
Abstract:
본 발명은 교통정보수집에 관한 것으로, 차량을 이용하여 교통정보를 수집하는 시스템에 관한 것이다. 본 발명의 일 측면에 따르면, 신호등 주기정보에 따라 신호등을 제어하는 신호등제어기, 상기 신호등에 의한 정차를 감지하고, 대기시간을 산출하는 정보수집장치 및 상기 대기시간을 분석하여 상기 신호등의 주기정보를 조정하는 신호제어서버를 포함하는 신호등 연계를 위한 정보수집 시스템이 제공된다.
Abstract:
Disclosed are an apparatus and a method for providing navigation information using surrounding information collection. An apparatus for providing navigation information using surrounding information collection according to the present invention comprises an information collection unit for collecting accident area information and shadow area information using object communications; a detour route generation unit for generating a detour route using the accident area information; a shadow area processing unit for searching plans of the shadow region using the shadow region information; and a screen displaying unit for displaying the detour route and plans on a navigation map.