본 발명은 CBTC 신호 시스템에 관한 것으로서, 더욱 상세하게는 IPv6 무선 네트워크에서 무선통신의 이동성을 지원하는 PMIPv6(Proxy Mobile IPv6) 기반의 CBTC 신호 시스템과 그 시스템에서의 핸드오버 방법에 관한 것이다. 본 발명의 실시예에 따른 CBTC 신호 시스템은, 열차에 설치되고 내부에 무선통신모듈을 구비한 차상신호장치; 선로변에 설치되어 상기 차상신호장치와 무선통신하는 지상신호장치; 상기 지상신호장치와 LAN을 통해 연결되고 PMIPv6 도메인 내 무선통신모듈 주소와 위치 정보를 유지하고 연결을 보장하며, HNP(Home Network Prefix)를 할당하여 상기 무선통신모듈에 전송하는 LMA(Local Mobility Anchor); 상기 LMA와 터널링하여 패킷을 주고받고, 네트워크에 대한 연결 기능과 라우팅 기능을 담당하여 이동성 지원 시그널링을 수행하는 MAG(Mobile Access Gateway); 상기 LMA의 주소와 주소 설정 방법, 무선통신모듈의 HNP 정보, 서비스 정책에 관한 정보를 저장하고, 상기 MAG의 무선통신모듈에 대한 인증 요청에 대해 처리하고 응답하는 AAA(Authentication, Authorization, Accounting) 서버; 를 포함한다.

    The present invention relates to a CBTC signal system and, more specifically, to a CBTC signal system based on a proxy mobile IPv6 (PMIPv6) for supporting mobility of wireless communications in an IPv6 wireless network, and a handover method in the system. The CBTC signal system according to an embodiment of the present invention comprises: a difference phase signal device formed in a vehicle and having a wireless communications module therein; a ground signal device formed in a railroad side and wirelessly communicating with the difference phase signal device; a local mobility anchor (LMA) connected through LAN with the ground signal device, maintaining wireless communication module address and position information in a PMIPv6 domain, ensuring connection, assigning a home network prefix (HNP), and transmitting the HNP to the wireless communications module; a mobile access gateway (MAG) for sending and receiving packets by tunneling with the LMA, taking charge of connection functions and routing functions for a network, and performing mobility support signaling; and an authentication-authorization-accounting (AAA) server for storing an address of the LMA, a way of setting an address, HNP information of a wireless communications module, and information on a service policy, and treating and responding to an authentication request for the wireless communications module of the MAG.


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    Title :

    CBTC CBTC signal system and handover method in the system


    Additional title:

    CBTC 신호 시스템 및 그 시스템에서의 핸드오버 방법


    Publication date :

    2016-04-04


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Korean


    Classification :

    IPC:    B61L Leiten des Eisenbahnverkehrs , GUIDING RAILWAY TRAFFIC / H04L TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION , Übertragung digitaler Information, z.B. Telegrafieverkehr / H04W WIRELESS COMMUNICATION NETWORKS , Drahtlose Kommunikationsnetze



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