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宽带综合业务数字网技术讲座第三章 异步转移模式技术基础及宽带交换赵慧玲（邮电部电信传输研究所）３．１引言随着社会的进步和经济的发展，通信业务日益多样化、高级化，用户的需求也急速增长，特别是对高速、宽带通信业务的需求增长很快。从８０年代中期开始，国际、...
Broadband Integrated Services Digital Network Technology Seminar Chapter III Asynchronous Transfer Mode Technical Foundation and Broadband Switching Zhao Huiling (Institute of Telecommunication Transmission, Ministry of Posts and Telecommunications) 3.1 Introduction As society progresses and the economy develops, the communications business is increasingly diversified and advanced The demand of users has also been rapidly increasing. In particular, the demand for high-speed and broadband communications services has rapidly increased. From the mid 80s, international, ...