基于信令分析的EPS Fallback呼叫接续时长优化  

The optimization of EPS Fallback time-delay based on signal

作　　者：张燕[1] 孙海洪[1] 彭鹏[1] ZHANG Yan;SUN Hai-hong;PENG Peng(China Mobile Group Guangdong Co.,Ltd.Zhuhai Branch,Zhuhai 519015,China)

机构地区：[1]中国移动通信集团广东有限公司珠海分公司,珠海519015

出　　处：《电信工程技术与标准化》2022年第4期54-57,共4页Telecom Engineering Technics and Standardization

摘　　要：EPS Fallback是目前5G商用的语音解决方案,其在关键业务性能特别是呼叫接续时长方面劣化于VoLTE业务,严重影响用户感知。本文对比EPS Fallback和VoLTE信令流程,得出影响EPS Fallback呼叫接续时长的关键为回落过程。基于信令大数据建模,提出一种“6分段”时延优化方法,利用此模型进行分段对标、分段定位和分段优化,可及时、快速定位并优化EPS Fallback回落时延过长问题。EPS Fallback procedure for IMS voice is the 5G voice solution,and the key performance is worse than VoLTE,especially for time-delay,which impacting user experience.The paper compares the VoLTE signaling,concluding that the key that affects the EPS Fallback time-delay is FB process,then based on signaling big data,the paper proposes a six-segment delimitation analysis method,which can be used to optimize and monitor the time-delay KPI,and can be used to locate and optimize the time-delay problem of EPS Fallback in time.

关 键 词：EPS Fallback呼叫接续时长 回落时延 5G 

分 类 号：TN929.5[电子电信—通信与信息系统]