基于TD-SCDMA系统的闭环功率控制研究  

Study on Closed loop Power Control Based on TD-SCDMA System

作　　者：李鹏[1] 李莉[2] 

机构地区：[1]中国石油大学(华东)计算机与通信工程学院,山东东营257061 [2]山东胜利职业学院建设工程分院,山东东营257000

出　　处：《西华大学学报（自然科学版）》2008年第5期32-34,共3页Journal of Xihua University:Natural Science Edition

基　　金：国家自然科学基金项目(No.60572020)

摘　　要：TD-SCDMA系统的闭环功率控制可以分为外环功控和内环功控。阐述了TD-SCDMA系统中闭环环功率控制的方法,并给出了一种基于测量统计的外环功率控制算法,对不同信道条件、不同控制输入参数的闭环功率控制进行了仿真。结果表明,闭环功率控制可以适当补偿路径损耗和慢衰落,对系统性能的提高有一定的益处。For TD-SCDMA system,the closed-loop power control(PC)consists of inner-loop PC and outer-loop PC.The closed-loop PC algorithms in the system are elaborated,and a power control algorithm based on measurement statistics is produced.The closed-loop power control under some conditions such as different channel environment and different control parameters is simulated.It is found that the closed-loop PC can counteract the power loss of path loss and slow fading to a certain extent,so as to benefit the system performance.

关 键 词：时分双工同步码分多址 功率控制 信干比 外环 内环 

分 类 号：TN914[电子电信—通信与信息系统]