CDMA系统强干扰环境下性能改善解决方法案例分析

Case Analysis on Performance Improvement Solutions in Strong Interference Environment for CDMA Systems

为解决在无线通信干扰区,语音用户出现的手机有信号而无法正常主/被叫、提示用户已关机或暂时无法接通、呼叫时延高、单通增加、掉话率高等问题;用户上网慢,甚至无法连接网络的情况,从实例出发,描述强干扰下无线网络的表现,具体分析干扰源对无线通信系统的影响,在此基础上提出解决方案,如逐站调整接入功率参数,增大有用信号功率,提升信噪比,同时增强站点设置,保证底层覆盖等。

In order to deal with problems such as abnormal dialing/called, prompted user poweroff; service unavailable, large calling delay, increasing single-pass, high dropping ra^e, slow network rate and inaccessible network with normal standby mode, the performance of wireless networks with strong interferences was described according the practical cases. The impacts of strong interference sources on wireless communication systems were elaborated. Based on this, the corresponding solutions were put forward including to adjust access power parameters, increase signal power to improve SNR and enhance site configurations to guarantee bottom layer coverage.