WCDMA与其它蜂窝系统共存时电磁兼容性能研究  

EMC analysis of WCDMA coexisting with other cellular networks

作　　者：吴江[1] 梁双春[1] 牛凯[1] 吴伟陵[1] 

机构地区：[1]北京邮电大学,北京100876

出　　处：《电波科学学报》2004年第6期673-678,共6页Chinese Journal of Radio Science

基　　金：国家自然基金资助项目 (No .90 2 0 4 0 0 1);北京市科技计划项目 (D0 10 4 0 0 2 0 4 0 92 1)

摘　　要：通过系统级仿真对WCDMA与相邻频段其它蜂窝系统的电磁兼容问题进行了研究。基于系统级蒙特卡罗仿真技术 ,提出了一个完整的系统共存仿真容量方案 ,研究由于射频干扰造成的WCDMA系统的容量损失情况。在计算系统间干扰时 ,提出了一种称为等效技术的方法 ,大大提高了仿真速度。给出了可能存在的四种蜂窝系统的干扰造成的容量损失结果。The capacity degradation of the WCDMA network coexisting with other networks in adjacent bands is investigated in this paper. A general system coexistence program is proposed on the basis of. the system-level Monte Carlo simulation technique. To analyze inter-system interference, a so-called exchange technique is presented to perform efficient calculation. The simulation results of capability loss from four possible interference systems, i.e. WCDMA network, CDMA2000, GSM and TD-SCDMA, are obtained, and the impacts of different carrier intervals and geographical offsets are discussed. In the case of the inter-system interference being very severe, e.g. when the interferer is the GSM or TD-SCDMA operating in the band of 1880-1920 MHz, the required additional attenuations are evaluated.

关 键 词：电磁兼容 共存 容量 邻道干扰比 

分 类 号：TN929.5[电子电信—通信与信息系统]