LTE终端用户平面数据传输的研究与设计  

Research and design on LTE UE user plane data transmission

作　　者：谷向阳[1] 

机构地区：[1]重庆邮电大学通信学院,重庆400065

出　　处：《电子测试》2010年第9期35-41,共7页Electronic Test

摘　　要：LTE的用户平面包括实现用户数据传输的层2的所有子层,针对3GPP发布的LTE Release 8标准,研究了LTE空中接口协议栈用户平面的结构与设计机制。首先主要介绍了LTE用户平面的总体结构以及各层功能,然后详细阐述了终端用户平面的数据传输过程及原理。缓冲区如何设计对于系统的稳定性和高效性有很大影响,最后设计了一种开辟缓冲区的方法以及信号传输流程,并在SDL环境中生成了MSC图,验证了流程设计的可行性。User plane of LTE includes all sub-layers of layer 2 which achieve user data transmission.Based on the LTE Release 8 standard released by 3GPP,do research on structure and design mechanism of LTE radio interface protocol stack user plane.Firstly,we mainly introduce the overall structure of LTE user plane and the function of each layer,then expatiate the data transfer process and principle of UE user plane.How to design buffer has a great influence on stability and efficiency of the system,at last design a method of opening up buffer and a signaling process,and generate MSC figure in SDL environment,have verified the feasibility of process design.

关 键 词：长期演进 用户平面 协议栈 分组数据汇聚 无线链路控制 介质访问控制 

分 类 号：TN929.5[电子电信—通信与信息系统]