北京邮电大学学报

  • EI核心期刊

北京邮电大学学报 ›› 2007, Vol. 30 ›› Issue (4): 88-92.doi: 10.13190/jbupt.200704.88.qiany

• 论文 • 上一篇    下一篇

TDD-CDMA上行系统多业务接入容量

钱雨,范斌,郑侃,王文博   

  1. (北京邮电大学 电信工程学院, 北京 100876)
  • 收稿日期:2006-09-07 修回日期:2007-03-21 出版日期:2007-08-30 发布日期:2007-08-30
  • 通讯作者: 钱雨

Multi-Service Access Capacities Analysis of Uplink TDD-CDMA System

QIAN Yu,FAN Bin,ZHENG Kan,WANG Wen-bo   

  1. (School of Telecommunication Engineering, Beijing University of Posts and Telecommunications, Beijing 100876, China)
  • Received:2006-09-07 Revised:2007-03-21 Online:2007-08-30 Published:2007-08-30
  • Contact: QIAN Yu

摘要:

通过分析时分双工码分多址(TDD-CDMA)系统中业务接入容量与干扰之间的关系以及TDD-CDMA干扰分布的特殊性,使用Delbrouck算法,对TDD-CDMA上行系统进行了多业务接入容量研究,可以求得多维损失制系统的呼叫阻塞率、流量阻塞率、时间阻塞率及承载流量. 最后给出了数值和仿真分析结果,证明了该方法的有效性.

关键词: 时分双工-码分多址, 多业务, 接入容量

Abstract:

An approach for calculating the multiservices access capacities of uplink time division duplexing-coding division multiple access (TDD-CDMA) system is proposed. The relationship between service access capacities and TDD-CDMA interference is analyzed. And the specialty of TDD-CDMA interference distribution is also considered. By using Delbrouck’s algorithm, the call congestion, traffic congestion, time congestion and carried traffic of different services in a multi-dimensional loss TDD-CDMA system can be resolved. Both analysis and simulation results are given to support the method mentioned above.

Key words: time division duplexing-coding division multiple access, multi-service, access capacities

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