VoLTEUE开机附着流程核心网侧的研究

Research on Process of VoLTE UE Attachment in Core Network

VoLTE UE在LTE网络中使用语音业务首先要保证正常的网络附着,从最基本的Vo LTE UE附着成功的信令流程入手,将此过程分为EPS附着过程和IMS注册过程,对这两个过程进行了详细的分析。结合实际情况,提出了附着过程中可能存在的异常情况及解决办法,为快速准确地定位问题提供了帮助。

For VoLTE UE in the LTE network to use voice service, it has to ensure that it attaches to network normally first. The process of UE successful attachment was analyzed, and this process was divided into EPS attachment process and IMS registration process. The two processes were analyzed in detail. Considering actual conditions, this paper presented possible anomalies and solution, providing help for fast and accurate positioning.