摘要
在现有2G和3G的基础上,3GPP推出了演进的分组系统EPS。在EPS网络建网初期,如果运营商已经有成熟的GERAN/UTRAN网络,出于对CS投资保护和LTE/EPC部署策略,运营商可以采用原有的CS域语音方案来提供语音服务。本文对CSFallback技术进行了分析,并对CSFallback业务的发展给出了建议。
In the 21^st century, because of the driving of service development and users＇ requirement, mobile communication system has a farther developing. On the basis of 2G and 3G, 3GPP introduces Evolved Packet System （EPS）. In the early stage of EPS network, if the operators have the perfect GERAN/UTRAN networks, for the protection of CS investment and the deployment policy of LTE/EPC, the operators can use their CS domain to provide voice service. This paper mainly studies the CS Fallback technology, and gives some advice for the CS Fallback service＇s development.
出处
《电信网技术》
2009年第6期9-13,共5页
Telecommunications Network Technology
基金
国家重大专项基金资助项目(2008ZX03004-001)
