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多媒体技术的重要特征之一是多种媒体信息的综合性。多媒体信息的传输和交换,由于各种媒体的业务特征差异甚大,它们特有的服务质量要求差别甚远,传输的速率也很悬殊,这些都给多媒体通信带来了巨大的困难,对通信网络产生了重大影响。分析研究多媒体对通信网的影响和要求,一方面可以更明确多媒体通信网的未来发展方向,另一方面,在现存的各类网络中传送不同层次的多媒体信息具有重大现实意义。
One of the important characteristics of multimedia technology is the comprehensiveness of various media information. The transmission and exchange of multimedia information, due to the very different business characteristics of various media, their unique quality of service requirements vary widely, the transmission rate is also very poor, which have brought great difficulties for multimedia communications, the communication network generated A significant impact. Analyzing and studying the influence and requirement of multimedia on the communication network can not only clarify the future direction of the multimedia communication network on the one hand, on the other hand, it is of great realistic significance to transmit multimedia information of different levels in all kinds of existing networks.