5G站点建设对4G网络覆盖影响评估方法

Evaluation method of the 5G site construction's impact in 4G network coverage assessment

本文基于LTE网络MDT采样数据、4G/5G共站址以及共建共享基础数据,根据5G站点安装完成时间,通过python编写代码算法,计算在5G站点安装完成前后对4G宏站小区的覆盖方位角的覆盖距离发生变化情况,针对变化较大的覆盖异常小区进行核查,确认是否因5G站点安装施工导致4G小区天线方位角、下倾角、位置、高度和环境等发生变化,从而导致4G网络覆盖受到影响。通过对4G网络覆盖变化异常小区及时进行优化调整,使4G网络覆盖与质量保持稳定性,避免出现用户感知差及用户投诉等情况。该方法可及时有效地识别网络变化情况,排查网络隐患,具有良好的推广性与复制性。

Based on the sampling MDT data of LTE network,as well as 4G/5G co-site information and basic data from co-build and co-share agreement,according to the completion time of the 5G site installation,using python to calculate the differences in coverage azimuth and coverage distance of the 4G macro cell before and after the installation,check the abnormal cells with large differences in coverage to confirm whether 4G cell antenna’s azimuth,downtilt angle,position,height,environment,etc.,have changed due to the installation and construction of 5G site,which then affect the 4G network coverage consequently.Optimizing and adjusting 4G cells with abnormal network changes timely is contributed to maintain stable network quality and avoid poor user perception and user complaints.This method can effectively identify network changes instantly and eliminate the hidden trouble.It is valuable for popularized application and prospect.