TD-LTE中的PRACH资源规划  

PRACH resource planning of TD-LTE

作　　者：康兰兰[1] 卢昶[1] 冯幸 夏龙根[1] 

机构地区：[1]中国移动通信集团广东有限公司佛山分公司,广东528000

出　　处：《电信工程技术与标准化》2012年第10期42-47,共6页Telecom Engineering Technics and Standardization

摘　　要：随机接入性能的好坏对于高速数据通信业务的质量起着至关重要的作用,TD-LTE中如何进行随机接入参数规划从而提高边缘地区随机接入成功率是一个值得研究的问题。本文首先简要介绍了基于竞争随机接入过程的基本步骤,从中说明PRACH资源的重要参数,随后详细介绍了各个参数及配置原则,并结合规划思路说明试验网PRACH参数的规划情况及建议。The performance of the random access plays a crucial role for the service quality of the high speed data communication system in TD-LTE. It＇s a problem that is worth studying how to determine the parameter planning so as to improve the random access success rate of the edge region. This article first briefly introduces the basic steps of the competition-mode-based random access process, and specifies the important parameters for the random access resource, then describes the meaning and the planning principles of the parameters. Finally, it specifies the suggestions and situations of the PRACH parameters planning in test network of TD-LTE.

关 键 词：PRACH配置索引 高速状态指示 零相关配置 根序列索引 频率偏移 

分 类 号：TN929.5[电子电信—通信与信息系统]