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引用次数: 0
摘要
提出了提供信息检索和传递服务的通信处理服务子系统(CPSS)的规范。介绍了该系统的系统结构，并对其主要功能模块进行了描述。配置CPSS的网络接口，即用户的PSTN接口和IP的PSDN (packet switched data network)接口。这些网络接口被设计成具有模块化结构，可以很容易地为综合业务数字网(ISDN)和ip用户升级，在帧中继。讨论了该系统可提供的服务，即信息检索服务、多播服务、剪辑服务、媒体转换服务和交互式数据通信服务。本文描述了这些服务的软件配置和操作。并介绍了该系统的优点和应用效果。
The design of a communication processing service subsystem for information retrieval/delivery services
The paper presents the specifications of a communication processing service subsystem (CPSS) that provides information retrieval and delivery services. The system structure of this CPSS is presented and its main functional blocks are described. The network interfaces of the CPSS are also specified, namely the PSTN interface for users and the packet switched data network (PSDN) interface for information providers (IP). These network interfaces are designed to have a modular structure that can be upgraded easily for users at integrated services digital network (ISDN) and IPs, in frame relay. The services that can be provided by this system are discussed, namely information retrieval services, multicasting services, clipping services, media conversion services, and interactive data communication services. In the paper, the configuration and operation of software for these services are described. The advantages and effects that can be acquired from this system are also presented.<>
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