【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。更多还原

【Abstract】 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., one 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.更多还原