TD-LTE系统3D-MIMO多用户性能研究

Research on Multi-user MIMO Performance in 3D-MIMO Channel Model of TD-LTE-Advanced System

根据3GPP RAN1会议达成的协议,基于TDLTE-Advanced系统建立3D信道模型。结合3DMIMO多用户(MU)配对调度传输、信道质量指示(CQI)的计算和反馈等关键技术,对TD-LTE-Advanced系统中的3D-MIMO关键性能指标进行评估。仿真结果表明,在不同场景、不同传输模式、不同天线配置下,3D-MIMO的小区平均频谱效率(ASE)和边缘频谱效率(ESE)相对于2D-MIMO有较大提升。

In TD-LTE -Advanced system ,we buildthe 3D channel model according to the agreementreached at the meeting RAN1. Based on the 3D -MIMO multi-user （MU） paired scheduling transmission, the calculation and feedback of channel qualityindicator （CQI）, and other key technologies, we evaluate the 3D-MIMO key performance indicators in TDLTE-Advanced system. Simulation results show thatin different scenarios, different transmission mode, anddifferent antenna configurations, 3D-MIMO cell average spectral efficiency （ASE） and the edge spectral efficiency （ESE） has greatly improved with respect tothe 2D-MIMO.