CDMA系统中的系统容量与软切换关系的研究

Research on the Relationship between the Soft Handoff and the System Capability in the CDMA Communication System

主要研究了CDMA移动通信系统中软切换和系统容量之间关系,介绍了CDMA系统软切换的过程以及软切换所涉及的关键参数,通过CDMA系统容量的计算方法分析得到软切换对系统容量的增减起到了一定的作用。并且在此基础上通过使用仿真工具CE4仿真得到在软切换状态下移动台发射功率和基站接收功率以及不同移动台的切换控制比例对于基站接收功率的影响,从而得出软切换可以在一定程度上提升系统容量的结论,对实际系统参数的设置有一定的指导作用。

This paper mainly researches the relationship between the soft handoff and the system capability in the CDMA communication system, introduces the process of the soft handoff and the key parameters involved, and through the analysis on the method for calculating the system capability in the CDMA communication system, concludes that the soft handoff is helpful in increasing the system＇s capability. And based on this, the simulation results of the infection of soft handoff when mobile station in soft handoff state by the simulator CE4 verify this conclusion,therefore, the control proportion of soft handoff is suitable for CDMA system.