4G与5G网络互操作部署策略研究

未来4G与5G网络将会长期共存,共同发展,运营商在整个网络建设过程中需重点考虑4G与5G制式共存下的系统间的互操作。因此,本文根据3GPP Rel-15标准要求,讨论了融合网元部署策略、N26接口开启策略、语音方案选择、切换方案选择等4G/5G互操作过程中面临的关键问题, 分析出4/5G网络共存下互操作关键部署策略,为后续运营商在网络演进中选择部署策略提供参考。

4G and 5G networks coexist and interoperate

In the future, 4G and 5G networks will coexist and develop together for a long time. Operators need to focus on the interoperability between the systems under the coexistence of 4G and 5G in the whole network construction process. Therefore, according to the requirements of the 3GPP Rel-15 standard, this paper discusses the problems faced in the process of 4G/5G interoperability, such as the deployment strategy of converged network elements, the opening strategy of N26 interface, the choice of voice scheme and the choice of handover scheme. It also analyses the interoperability deployment strategy under the coexistence of 4/5G system, which provides a reference for the subsequent operators to choose deployment strategy in the network evolution.