Research Of LTE Network Loading Evaluation And Grid Level Capacity Expansion Solution Based On The User Perception

The increasing popularity of intelligent terminals and the exponential growth of mobile APP categories show exponential growth in the number of TD-LTE users and data traffic.At the same time,mobile users have a higher demand for data business experience.Therefore,the demand of TD-LTE network resources is increasing,and the system loading is on a rapid trend.When the loading goes up to a certain level,the wireless network will have insufficient capacity to service user and make congestions,and then the network performance will drop,which will have a negative impact on the user's business experience.Existing methods are based on the existing LTE network background indicators and statistical numerical calculator,which focus on KPI(Key Performance Indicator).It is a "passive" method and user perception is not be evaluated;In addition,the direct increase carrier frequency is the mainly method of the existing expansion mode,which is not related to the user business distribution,and indoor and outdoor characteristics.In order to ensure the user experience to good awareness rate,and meet the needs of Mbps anytime and anywhere,establishing a load evaluation system based on user perception of the TD-LTE and reasonable network scheme is imperative.In addition,to improve network performance,and promote construction investment returns during making expansion plan,an elaborated expansion and intensification of pertinence scheme are given according to both the inside and outside factors such as property,business characteristics,business distribution..Firstly,the user perception system is established in this paper through user survey,and the user perception rate is maked the core focus;Then,based on user perception standard threshold,a specific plan of LTE network load assessment technology and user perception assessment is given;Finally,by using the "grid-level" physicochemical method,the analysis of the expansion demand and the specific capacity solution of different properties are analyzed.