基于语音质量eSRVCC切换研究及优化策略  

Research and optimization strategy of eSRVCC switch based on voice quality

作　　者：黄正彬 梁家溪 李坚 杨燕铭 HUANG Zheng-bin;LIANG Jia-xi;LI Jian;YANG Yan-ming(China Mobile Group Guangxi Co.,Ltd.Yulin Branch,Yulin 537000,China)

机构地区：[1]中国移动通信集团广西有限公司玉林分公司,玉林537000

出　　处：《电信工程技术与标准化》2019年第2期18-22,共5页Telecom Engineering Technics and Standardization

摘　　要：LTE系统内切换/系统间切换多数基于信号覆盖,无法有效解决信号强度良好情况下,由于干扰会导致VoLTE语音质量差的问题。本文基于语音质量的eSRVCC切换,能够有效解决密集城区高干扰、县城农村快衰场景下信号质量差的问题,提升VoLTE语音通话质量。LTE handover is based on signal coverage,which cannot effectively solve the signal quality problem caused by interference.This paper focuses on the optimization strategy of eSRVCC handover based on voice quality via quality judgment,which solves the poor signal quality problem in dense urban area and fast fading senario in rural area,therefore improves the voice quality a lot.

关 键 词：VoLTE eSRVCC 异频切换 同频切换 异系统切换 

分 类 号：TN929.5[电子电信—通信与信息系统]