TD-LTE系统终端物理层控制的设计与实现  

Implementation and Design of Physical Layer Control for UE in TD-LTE System

作　　者：雷涛[1] 李小文[1] 何登平[1] 

机构地区：[1]重庆邮电大学重庆市移动通信重点实验室,重庆400065

出　　处：《计算机测量与控制》2014年第1期88-90,99,共4页Computer Measurement &Control

基　　金：国家科技重大专项资助(2011ZX03001-003-01)

摘　　要：3GPP LTE协议中规定了高层的各个状态,而物理层没有做相应的规定;为了使物理层控制能够满足终端通信的要求,按照终端从开机到呼叫结束的通信流程对物理层进行了状态划分,在每个状态下对终端物理层设计不同任务,通过物理层控制对每个状态下的任务进行调度,从而实现终端和基站之间的通信;由于物理层和高层之间是用原语进行通信,所以针对不同的状态设计不同的原语;通过在5MHz带宽,1发2收天线配置,QPSK调制方式等主要仿真参数下,接收端可以实现正确的解调和译码,表明了该设计的可行性和正确性。Status of high layer is regulated by the 3GPP LTE protocol; however there is no regulation in physical layer. In order to make physical layer control meet the communication requirement of UE, the status in which different task is allocated is divided for physical layer from the bootstrap to call ended. The status is scheduled by the physical control procedure to implement the communication between termi nals and base stations. Due to the communication between physical layer and higher layer is based on primitive, different primitives indicate different status. The receiving end can demodulate and decode the date correctly under the main simulation parameter of 5 MHz bandwidth, 1 sending antenna and 2 receiving antennas and QPSK modulation mode. Through the simulation, the feasibility and validity of the design is certified.

关 键 词：TD—LTE系统 物理层状态 原语 任务 

分 类 号：TN929.5[电子电信—通信与信息系统]