基于FDD LTE商用网络的4T4R容量分析

Analysis on 4T4R Capacity Based on FDD LTE Commercial Network

在FDD LTE网络中基站4T4R技术的目标是在四天线终端普及后激活4×4 MIMO技术来提升网络容量,但在实际网络中终端仍以两天线终端为主,现有基站部署4T4R技术实际是激活4×2 MIMO技术。为探索此技术在有效提升容量方面的潜力,以FDD LTE网络基站2T2R技术容量为基准,从基于SCME信道模型的容量仿真和实际网络部署来分析基站4T4R技术在两天线终端场景下的容量提升。基于SCME模型的仿真结果显示,在实际网络部署中,通过多指标多维度分析,基站4T4R技术在两天线终端场景下仍可有效提升容量,实现规模部署。

In FDD LTE network,the goal of base station 4T4R technology is to activate 4×4 MIMO technology to improve the network capacity after the popularization of four-antenna terminals.However,in actual network,the terminals are mainly two-antenna terminals,and the existing base station deploy-ment of 4T4R technology actually activates 4×2 MIMO technology.In order to explore the potential of this technology in effectively improving capacity,based on the capacity of 2T2R technology of FDD LTE network base station,the capacity improvement of 4T4R technology of base station in two-antenna terminal scenario is analyzed from capacity simulation based on SCME channel model and actual network deployment.The simulation results based on SCME model show that,in actual network deployment,through multi-index and multi-dimensional analysis,the base station 4T4R technology can still effectively improve the capacity and achieve scale deployment in the scenario of two antenna terminals.