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蜂窝移动通信系统由于存在多种码间于扰而使其系统容量难以增加。CDMA技术在理论上可使其容量与AMPS相比扩大十多倍，但实际上并不如此理想。北京邮电大学李道本教授开发了一种扩频地址编码技术，使系统容量比IS－95大了三倍以上，本文就此CDMA技术的新突破作一报导和介绍。
Cellular mobile communication system due to the presence of a variety of intersymbol interference its system capacity is difficult to increase. CDMA technology in theory can make its capacity more than a dozen times larger than AMPS, but in fact it is not so ideal. Beijing University of Posts and Telecommunications, Professor Li Daoben developed a spread spectrum address coding technology, the system capacity is more than three times larger than the IS-95, CDMA technology in this new breakthrough make a report and introduction.