3G共存干扰分析  

Interference Analysis of 3G-coexistence Network

作　　者：魏志刚[1] 张维东 

机构地区：[1]重庆邮电大学,重庆600045 [2]重庆电信有限公司,重庆600042

出　　处：《通信技术》2010年第7期178-180,共3页Communications Technology

摘　　要：在WCDMA和CDMA2000组成的共存系统中,邻频干扰是影响系统性能的重要因素,分别从上下行链路两个方面理论分析了由CDMA2000系统引起的邻频干扰对WCDMA系统产生的影响。仿真结果表明,基站与移动台之间的距离、干扰移动台数、两系统之间的保护带宽都将不同程度地影响WCDMA基站的最小允许接收功率和WCDMA移动台的SIR,从而导致系统容量的下降。Adjacent channel interference is an important affecting factor to the 3G system performance in the coexistence network of WCDMA and CDMA2000.The paper,from the two aspects of uplink and down-link,analyzes the adjacent channel interference on WCDMA system,which is caused by CDMA2000 network on uplink and downlink scheme.The simulation results show that the distance between BS and MS,number of interfering MS,and protection bandwidth woul affect the minimum allowed received power at WCDMA BS and SIR in WCDMA MS,thus leading to degradation of the system capacity.

关 键 词：第三代移动通信 邻信道干扰功率比 容量损失 

分 类 号：TN929.5[电子电信—通信与信息系统]