不同场景下的eSRVCC切换参数优化分析  

Optimization Analysis on eSRVCC Switching Parameters in Different Scenarios

作　　者：朱同先[1] 郭宝 张建奎[3] 

机构地区：[1]中国移动通信集团江苏有限公司宿迁分公司,江苏宿迁223800 [2]中国移动通信集团山西有限公司,山西太原030032 [3]中国移动通信集团江苏有限公司,江苏南京210012

出　　处：《移动通信》2017年第18期24-28,共5页Mobile Communications

摘　　要：为了解决LTE系统使用频谱损耗大、深度覆盖而导致局部区域出现VoLTE无法连续覆盖的问题,需通过eSRVCC切换到2G网络来保障语音业务的连续性,但目前全网对于SRVCC相关参数设置存在"一刀切"的情况。基于此,针对快衰落、慢衰落等不同场景,分析各种场景下SRVCC切换特征以及小区无线环境与性能特征,并对e SRVCC等参数的设置进行研究和合理化配置,提出了提升VoLTE用户的语音业务感知的优化方案。In order to deal with the discontinuous LTE coverage in local areas resulting from high spectrum loss and deep coverage for LTE systems, the switch to 3G networks through eSRVCC is necessary to guarantee voice service. However, the parameter configuration related to SRVCC in the whole network suffers from ＂＇one size fits all＂. Therefore, the switching characteristics, wireless cell environment and performance feature of SRVCC in different scenarios were analyzed according to fast fading and slow fading. The setting of eSRVCC parameters was investigated and feasibly configured to put forward the optimization solution to voice service perception for VoLTE users.

关 键 词：eSRVCC 切换 快衰落 慢衰落 

分 类 号：TN929.5[电子电信—通信与信息系统]