目前5G无线基站的建设主要以共站、共址、共平台、共天线为主,极大提高了网络管理的复杂性.由于缺乏完整的天馈管控管理体系,导致工作参数(以下简称工参)维护困难、工参继承及时率低、继承准确率低、施工后网络质量监控及时率低等问题,对整体网络质量及用户感知造成极大隐患.介绍了智能化天馈管控管理体系,旨在搭建以天线姿态测量仪为核心的天馈管控管理平台,管控信息采集、现场施工方案下发等环节.借助天线姿态测量仪终端人工智能识别,在现网工参继承核查、施工后指标监控、网络工参维护等环节,由天线姿态测量仪后台自动完成,极大提高了工作效率及工作质量,同时有效解决当前4G/5G网络工参准确性差、维护困难的难题.
At the beginning of the TD-SCDMA constructing,band A is mainly using 9 frequencypoints to configure the TRXs,which would easily match various applications bearded on small network.However,with the continuous development of the TD-SCDMA network,the frequency allocation in single station would gradually increase such as S222 to S333,9 frequencies reused solution in whole NW is hard to balance the performance among business which under the shortage of frequencies.In this paper,TDSCDMA carrier bandwidth compression scheme is issued.With the frequency interval compressing,the TD-SCDMA network adds 2 extra center-frequencies in A band,consequently,overall 11 center frequencies solution could increase the capacity and solve the shortage of resource.In addition,the interference created from R4(voice) and H(data)would be suppressed since the more flexible utilization in frequencies.
In TD-SCDMA system,the main reasons to cause drop call are considered as the loss of synchronization of uplink or downlink in L1 layer and the problems caused in RLC layer.For the loss of synchronization of downlink in L1 layer,by using cell update process,so that UE select the appropriate cell and the service is recovered;And for the loss of synchronization of uplink in L1 layer and the problems arise in RLC layer,which might cause the release of resource and drop call.In this essay,to analyze the loss of synchronization in L1 layer and the RLC layer problems,and according to the further research base on the process of cell update to propose that the use cell update to ovoid drop call as the loss of synchronization in L1 layer and the problems in RLC layer,as using the appropriate UE settings and the modification of policy in system to make the strategies for UE and network more appropriate and achieve better performance.
