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LTE/EPC是一个单纯的分组交换系统,不支持传统的语音业务;同时随着4G网络建设规模的逐步扩大,移动用户最基本的传统语音业务面临很多挑战。CSFB方式是山西联通目前采用的语音解决方案,在日常性网络优化方面,各类参数的设置以及回落方案直接影响信令接续时间及用户的感知。
LTE / EPC is a simple packet switching system that does not support traditional voice services. Meanwhile, with the gradual expansion of 4G network construction, the most basic traditional voice services of mobile users face many challenges. CSFB mode is currently used by Shanxi Unicom voice solutions, in the daily network optimization, the setting of various parameters and fallback programs directly affect the signaling connection time and the user’s perception.