PCS和WCDMA系统室外共存问题研究

Study of Co-exist between PCS and WCDMA Systems

研究了现有移动通信系统和未来3G系统之间的干扰和共存问题。分析了PCS和WCD-MA系统共存的杂散干扰情况,设计了一个典型的室外共站址干扰测试环境和方法,采用接收机灵敏度恶化值作为系统性能恶化和干扰程度的衡量指标。分析结果表明,至少保持5 MHz的频率隔离和仔细的网络规划,PCS系统和3G系统能够很好的共存,干扰造成的性能下降也可以保持在较低的水平上。还利用ACS邻道干扰原理对两系统相邻频点上的杂散异常现象进行了深入的分析,所采用的干扰分析和测试方法也可用于其他的无线通信系统共存干扰分析中。

This paper presents measured performance and spurious interference data for PCS and WCD- MA in a co-site （co-located） outdoor environment. We design a typical co-site interference measurement scenario and a valid method. We also evaluate the system performance deterioration metrics by the BS receiver desensitization. The results show that with 5 MHz spectrum isolation and careful planning, both systems can co-exist in a co-site environment and the experienced performance degradations can be kept to a reasonable level. The methods can be applied to the co-exist issue of other radio systems.