Software structure of CATV system of open distributed processing structure and communication service processing method using this structure

摘要

The present invention relates to a software structure of an ATM switch, a media server, and a subscriber station device mounted in a CATV network, and a communication service processing method using the structure. Recently, as the communication market is opened to become a free competition system, various types of devices supplied by various vendors are installed in the communication network, and as the communication business is advanced and specialized, many information providers, broadcast providers and There will be a carrier. In addition, as the information society progresses, communication services required by subscribers become diversified, complicated, and multimedia. In addition, the multimedia communication service requires more communication resources when performing services in a network. Therefore, it is important to design a structure that can secure interoperability of devices mounted on a network, easily add / delete / change communication services, and efficiently use network resources in a communication system. . That is, in the present invention, by designing the software structure of each device (media server, ATM switch, subscriber terminal) mounted on the CATV network with an open distributed processing structure to ensure the interoperability (Multi-Vendor) devices Various multimedia services can be easily implemented, and communication resources can be efficiently implemented by separating and implementing control entities performing services in each device into sessions, calls, and connections. It can be used as.