摘要
WCDMA是第三代移动通信系统中的一种主流无线接入技术。论文介绍了WCDMA网络中软切换的分类,分析了软切换的执行策略和其中的重要参数,用系统级仿真的研究方法探讨了软切换门限和软切换比例,软切换门限和掉话率、阻塞率之间的关系,最后得出合适的软切换增加门限应该在3db～6db,软切换删除门限在5db～8db,为实际应用中进行参数设置提供了参考。
WCDMA is the main wireless access techniqe in Third Generation Mobile Communication System. In this paper, various types of soft handover are described first. Then soft handover strategy and relative important parameters are comprehensively analyzed Finally, the influence of parameters settings on soft handover rate, block rate and drop rate is discussed, and proper parameter setting ranges are given, including a soft add range of 3db-6db and a soft drop range of 5db-8db, thus providing a reference for parameters setting in real network.
出处
《信息安全与通信保密》
2008年第3期40-42,45,共4页
Information Security and Communications Privacy
关键词
WCDMA系统
软切换
软切换比例
阻塞率
掉话率
WCDMA（Wideband Code Division multiple Access） System
soft handover
soft handover rate
block rate
drop rate
