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.
出处
《移动通信》
2017年第18期24-28,共5页
Mobile Communications
