一种对TD-SCDMA系统动态信道分配方法的改进  

A Novel Dynamic Channel Allocation Method of TD-SCDMA

作　　者：昆仑 李世鹤[2] 张中兆[1] 

机构地区：[1]哈尔滨工业大学通信技术研究所,哈尔滨150001 [2]信息产业部电信科学技术研究院,北京100083

出　　处：《通信技术》2003年第5期50-51,54,共3页Communications Technology

摘　　要：首先分析了TD-SCDMA系统的性能,表明其接收性能与同一时隙码分用户的空间分布有关。针对TD-SCDMA系统的这一特点,提出了一种对原有动态信道分配(DCA)方法的改进方法。传统的DCA是以使相邻小区干扰最小为准则,达到提高系统性能的目的。改进的方法除了考虑相邻小区的信道分配外,还要对本小区内用户空间分布进行考虑。链路仿真结果表明,这种方法可以明显提高系统性能。Dynamic channel allocation(DCA) is generally for reducing intercell interference. In this paper, a improved method of DCA is proposed. In TD-SCDMA, method combined joint detection and smart antenna is applied. Arithmetic analysis show: its performance is influenced by user spatial separation. So user spatial separation in the same cell is considered in the new DCA. Simulation results show: system performance is improved by this method.

关 键 词：动态信道分配 时分同步码分多址 联合检测 智能天线 

分 类 号：TN92[电子电信—通信与信息系统]