宽带CDMA无线多媒体接入技术的研究及系统实现

Wideband CDMA Wireless Multimedia Multiple Access Techniques Research and Implementation

给出了已完成的“宽带ＣＤＭＡ无线多媒体接入关键技术和实验系统”项目的研究成果．包括提出可变传输速率的宽带ＣＤＭＡ扩频调制方法、部分平衡功率控制算法、自适应接入速率的无线接入方法．基于上述技术，给出了由基站和多媒体终端组成的实验系统参数，该系统实现了传输速率为８ｋｂｐｓ的语音通信和１４４ｋｂｐｓ速率的数据通信．

In this paper, we present the result of our researches on the wideband code division multiple access (W-CDMA) multimedia wireless access techniques. This includes to propose W-CDMA modulation scheme of variable transmission rate, partial-balance power control algorithm, and wireless access method of variable access rate. Based on the proposed W-CDMA multimedia wireless multiple access techniques, an experimental system which consists of a base station and multimedia terminals is also developed. The system realizes the wireless communication of voice with 8kbps transmission rate and data with 144kbps transmission rate.