基于CDR数据分析MSC池组语音业务质量的方法研究

Research on the Method of Analyzing MSC Pool Voice Service Quality Based on CDR Data

移动网电路域端局池组化改造后,用户登记在一个Server VLR后一般不会随着用户位置的变化而切换登记VLR,从而简化了切换信令流程,对语音业务质量有所提升。在网络服务实践中,要量化计算池组化对语音业务质量的提升,可以通过CDR数据分析,归纳出多项事件,组成指标体系,通过对池组内无线区域切换和池组外切换的对比,得出池组化语音业务质量提升的量化指标。这样形成的分析方法也可类似应用于对核心网语音业务整体质量的分析判断中。

In the MSC pool system of mobile network,the user registration in VLR is generally fixed while roaming. In this way,the handover signaling procedure is simplified,voice service quality is improved. In the practice of network service,to quantify the promotion of voice service quality in pooling,CDR data analysis will be a useful method. With a series of CDR events composing into the index system,we can compare switching inside the pool and outside while user roaming,and get the quantitative indicators of voice service quality improvement. The analysis method can also be applied to the analysis and judgment of the overall quality of the core network voice service.