窄带通信综合业务的传输实现

Transmission and Reality of Integrated Services in Narrowband Communication

窄带通信具有信道资源有限的特点,采用统一信元封装传输各种业务能够充分利用信道资源。阐述了话音线路倍增技术的概念,提出了将线路倍增技术应用于异步数据传输的思想,介绍了传真通信的特点。基于上述原理给出了窄带综合业务适配器的方案实现,对设备的各个组成部分从硬件和软件2方面进行了论述。最后提出了该设备应用点点通信和网间通信的方案,分析了2种方案的特点和性能,并展望了窄带通信综合业务适配器的发展前景。

Channel resource in narrowband communication is very limited. Transmitting various data in the same formatted cell can make full use of channel resource. In this paper, at first the concept of lines dynode is described, then the method of how to apply lines dynode to asynchronous data transmission is put forward, and the features of fax communication are described. Based on the theories, the scheme realization of narrowband communication integrated service adaptive equipment is given ; then each part of the equipment is described in both hardware and software; at last the schemes of applying the equipment to point-to-point and network-to-network communication is presented;their features and performances are analyzed;the prospect of the narrowband communication integrated service adaptive equipment is predicted.