电信科学 ›› 2013, Vol. 29 ›› Issue (9): 151-154.doi: 10.3969／j.issn.1000-0801.2013.09.030

• 运营创新论坛 • 上一篇    下一篇

CSFB部署对网络的影响分析

吴琼,朱爱华,薛楠   

  1. 中国联合网络通信有限公司网络技术研究院 北京 100048
  • 出版日期:2013-09-20 发布日期:2017-06-22

Analysis of CSFB Deployment Impact on Network

Qiong Wu,Aihua Zhu,Nan Xue   

  1. Network Technology Research Institute, China United Network Communications Co., Ltd., Beijing 100048, China
  • Online:2013-09-20 Published:2017-06-22

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摘要：

因为LTE 的主要驱动力是数据业务，其本身不能提供语音业务，所以对WCDMA 运营商来说，在VoLTE产业成熟之前要发展语音业务就需要部署CSFB。介绍了CSFB的实现原理，并从部署CSFB的角度对CSFB的不同实现方式对网络的改造要求、路由区和位置区的划分、实际部署的组网方案等方面进行了详细分析，最后针对不同的网络情况给出了部署建议。

关键词: LTE语音, CSFB, 互操作

Abstract:

As the main driving force of LTE is data service, which cannot provide voice service. As for WCDMA operators, the CSFB needs to be deployed, before the VoLTE is prepared. The deployment issues of CSFB and impacts on the network were analyzed in detail. In the end, recommendations of CSFB deployment were given.

Key words: LTE voice, circuit swithched fallback, interoperability

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