LTE网络物理上行随机接入信道前导码规划方法  

LTE Network PRACH Preamble Planning Method

作　　者：侯嘉林 苏一海 李进盛 

机构地区：[1]广西区通信产业服务有限公司,广西南宁530023

出　　处：《广西通信技术》2016年第4期37-40,共4页Guangxi Communication Technology

摘　　要：对于LTE网络,物理上行随机接入信道(Physical Random Access Channel,PRACH)的作用是随机接入,是用户进行初始连接、切换、连接重建及上行同步的唯一途径。要确保用户接入的成功率,合理规划物理上行随机接入信道前导码,对网络的接入性能与容量起到至关重要的作用。规划前导码的过程涉及小区的覆盖半径、场景、前导格式及循环位移、物理随机接入信道、前导起始资源块位置的等方面的确定。For the LTE network, the role of the physical uplink random access channel is random access, which is the only way for users to connect, switch, link and uplink synchronization. To ensure that users can access the success rate of physical uplink random access preamble access performance and capacity of the network planning plays an important role in the process of planning, the preamble involves determining the coverage radius, the scene, the preamble formats and cyclic displacement, PRACH Configration Index, the leading position of the initial resource block etc.

关 键 词：上行物理随机接入信道前导码 资源块 前导格式 逻辑根序列 

分 类 号：TN929.5[电子电信—通信与信息系统]