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应用科学学报 ›› 2000, Vol. 18 ›› Issue (4): 298-302.

• 论文 • 上一篇    下一篇

宽带CDMA无线多媒体接入技术的研究及系统实现

邱玲, 朱近康   

  1. 中国科学技术大学电子工程与信息科学系, 安徽合肥 230027
  • 收稿日期:1999-10-18 修回日期:2000-01-29 出版日期:2000-12-31 发布日期:2000-12-31
  • 作者简介:邱玲(1968-),女,江苏南通人,讲师,博士.
  • 基金资助:
    国家863通信资助项目(863-317-9603-04)

Wideband CDMA Wireless Multimedia Multiple Access Techniques Research and Implementation

QIU Ling, ZHU Jin-kang   

  1. Department of Electronic Engineering & Information Science, University of Science and Technology of China, Hefei 230027, China
  • Received:1999-10-18 Revised:2000-01-29 Online:2000-12-31 Published:2000-12-31

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摘要： 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.

关键词: 宽带码分多址, 多址接入技术, 系统实现

Abstract: 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.

Key words: W-CDMA, multiple access techniques, system implementation

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