蔡家鹏, 计宁, 王逊. Research on path optimization of signaling and media streams in the VoLTE call process[J]. 2015, 28(7): 58-61. DOI: 10.13992/j.cnki.tetas.2015.07.020.
VoLTE信令和媒体流路径优化方法研究
摘要
VoLTE是运营商在4G下的目标话音解决方案
在LTE覆盖范围内通过LTE网络提供基于IMS的话音业务
同时通过锚定和域选功能
实现Vo LTE用户在CS覆盖下的主被叫业务。本文分析了现网Vo LTE被叫的信令和媒体流路径情况
发现了路径迂回的问题
并且提出了一种利用S-CSCF的增强功能来实现信令和媒体流的最佳路径
经过测试验证
该方法很好地解决了路径迂回问题
缩减了端到端的接续时延。
Abstract
VoLTE is the target speech method in 4G solution
within the coverage area of the LTE voice is provided by LTE through the IMS network
the anchor and domain selection function is used to ensure the call when the UE is in CS. This paper analyzes current VoLTE signaling and media fl ow path
found a path detouring problem
and proposes an enhancement to achieve the best path signaling and media stream using S-CSCF