基于用户感知的3D MIMO扩容门限研究

3D MIMO System Capacity Expansion Threshold based on User Perceived

3D MIMO是Pre5G技术之一,是Massive MIMO的初期形式。3D MIMO多部署在网络热点区域,其中容量评估是影响其效果的重要因素。为匹配用户不断增长的网络体验需求,需要制定与时俱进的网络扩容评估标准。因此,从用户实际无线环境和业务类型出发,建立感知评价模型,设计实验用例得出感知受限门限值。实验中业务模型选择视频业务和混合业务,视频感知评价采用决策树评价模型。根据测试结果,提出了一组3D MIMO扩容门限,能有效指导后期3D MIMO网络规划、优化和工程设计。

3D MIMO is one of the key technologies of the Pre5G and is the primary form of Massive MIMO.3D MIMO is mostly deployed in network hotspots,where capacity assessment is an important factor affecting its effectiveness.In order to match the growing network experience demands of users,it is necessary to develop network system capacity expansion standards that keep pace with the times.Therefore,starting from the user’s actual wireless environment and service type,a perception evaluation model is established,and an experimental use case is designed to obtain a perception limited threshold.In the experiment,video service and hybrid service are selected as the services model,and decision tree model is used for video service perception evaluation.According to the test results,a set of 3D MIMO capacity expansion thresholds is proposed,which can effectively guide the later 3D MIMO network planning,optimization,and engineering design.