TD-LTE系统随机接入过程碰撞问题研究  

Research on Collision Problem in Random Access Process of TD-LTE System

作　　者：刘婉妮[1] 段永红 Liu Wanni;Duan Yonghong(Institute of Infonnation Engineering,xi'an eurasia university xi'an,shannxi,710065,china;Xi'an North Jierui Photoelectric Technology Co.,Ltd.xi,an,shannxi,710065,china)

机构地区：[1]西安欧亚学院信息工程学院 [2]西安北方捷瑞光电科技有限公司,陕西西安710065

出　　处：《信息通信》2019年第8期191-193,共3页Information & Communications

基　　金：陕西省教育厅科研计划项目（16JK2122）

摘　　要：随机接入是移动通信系统媒体接入控制的一项重要技术,文章在分析传统的随机接入前导码管理方案优缺点的基础上,提出了一种改进的基于码字共享的前导码管理方案,并通过matlab仿真对比该方案与传统方案性能优劣情况.结果 表明:该方案能够在减少系统资源的情况下,有效提升接入成功率,降低碰撞的概率.Random access is an important technology of media access control in mobile communication system.Based on the analysis of the advantages and disadvantages of the traditional random access preamble code management scheme,this paper proposes a preamble code management scheme based on codeword sharing,and uses Matlab simulation to compare the performance of the proposed scheme with that of the traditional one.The results show that:The scheme can effectively improve access success rate and reduce collision probability while reducing system resources.

关 键 词：TD-LTE 随机接入 碰撞 前导码 接入成功率 

分 类 号：TP929.5[自动化与计算机技术]