基于MATLAB的LTE仿真平台CoMP功能的设计与实现  

Design and Implementation of CoMP Function Based on LTE Simulation Platform Running on MATLAB

作　　者：周文安[1] 陈微[1] 陈思 谭中一[1] 李慧芹[1] 

机构地区：[1]北京邮电大学计算机学院,北京100876 [2]中兴通讯无线预研部,上海201203

出　　处：《系统仿真学报》2012年第11期2259-2263,共5页Journal of System Simulation

基　　金：国家科技重大专项项目(2009ZX03003-003-01)

摘　　要：以维也纳技术大学的LTE系统级仿真平台为基础,设计实现了多点协作传输(CoMP)功能。在原仿真平台上增加了三个模块:边缘用户判断模块,协作小区选择模块和资源分配模块。新增加的三个模块使用SINR门限法来判断边缘用户,采用用户选择协作小区方案以提高仿真平台的CoMP性能,并提出了新的资源分配方法解决了用户选择协作小区带来的资源分配冲突问题。模块化的设计使得平台可用自带的初始配置文件对三个模块进行统一配置,实现了与原平台的兼容,又降低了与原平台的耦合性,增加了可扩展性。此外增加了基站与用户进行CoMP时需要相互交互的信令。还增加了用户运动的动画演示,能直观有效地观察用户的移动和基站对用户进行CoMP的情况。最后对该CoMP功能进行仿真测试,结果与3GPP相关提案基本一致,证明了此功能的正确性和有效性。The function of Coordinated Multi-Point transmission/reception based on the LTE System level simulation platform provided by Vienna University of Technical was designed and realized. Three modules were added to the original platform to determination module, cooperative cell selection achieve the goal of CoMP, which was cell-edge user module and resource allocation module. The three new modules used SINR threshold method to distinguish the cell-edge users and used pure UE-specific clustering method to choose the cooperating set which could improve CoMP performance. Meanwhile, a new resources allocation scheme was proposed to solve the resource conflict caused by pure UE -specific clustering method. Modular-design made it possible for the platform to configure the three modules with the initial configuration file, which not only maintained compatibility with the original platform, but also reduced the coupling with the original platform and increases scalability. Some signalings needed in CoMP were also added. What＇s more, the demo of users＇ movement was realized so as to observe the users＇ movement and eNodeBs＇ Multi-Point transmission for uses conveniently. Finally, simulation was made to test the CoMP function and the result is basically match that presented in some proposals of 3GPP, which proves the accuracy and effectiveness of the CoMP function,

关 键 词：LTE 仿真平台 COMP MATLAB 

分 类 号：TP391.9[自动化与计算机技术—计算机应用技术]