TD-SCDMA随机接入过程中碰撞检测的性能分析  

Performance Analysis of Collision Detection in Random Access Procedure for TD-SCDMA

作　　者：马霏霏[1] 熊思民[1] 谢显中[1] 万晓榆 

机构地区：[1]重庆邮电学院移动通信工程研究中心,重庆400065

出　　处：《重庆邮电学院学报（自然科学版）》2002年第1期21-24,共4页Journal of Chongqing University of Posts and Telecommunications(Natural Sciences Edition)

摘　　要：随机接入过程是无线通信系统中的一个关键性过程 ,这个过程中产生的碰撞问题会直接影响用户接入的成功和无线资源的利用。针对 TD- SCDMA系统的特点 ,对随机接入上行同步序列的碰撞问题进行了研究 ,分析了基站端的碰撞检测过程 ,对检测中可能出现的 2种情况进行了仿真 。Random access procedure is one of the key procedures for wireless communication system. The collision that arises in this procedure will directly affect the success of user access as well as the utilization of the radio resource. On account of the unique characteristics of the TD SCDMA system, the collision problem of the uplink synchronous sequences is considered and the collision detection procedure is analyzed in this paper. The collision detection on two possibilities is simulated and the performance of collision detection is evaluated and some fruitful results are also described in this paper.

关 键 词：随机接入 TD-SCDMA 同步序列 碰撞检测 第三代移动通信 

分 类 号：TN929.533[电子电信—通信与信息系统]