5G无线接入网络部署的关键问题

Key Issues of 5G Radio Access Network Deployment

5G的网络部署将是一个循序渐进的过程。在网络部署初期,既要达到城区的基本覆盖,又要综合考虑既有系统、业务以及新可用5G频谱的条件限制,并尽量重用既往的网络投资以获得最大化收益。网络发展的中后期,部署则侧重在进一步提高网络质量,满足5G业务的多样性需求,提供差异化服务。从频谱分析出发,以一个城市5G部署案例为基础,探讨无线接入网络部署的要点和相应技术解决方案。然后介绍对中后期部署关键的低时延和网络切片技术。最后为5G无线接入网络部署模式及演进路径的选择提供参考建议。

5G network deployment will be a gradual process. In initial phase of the network deployment,the coverage is the foundation.Legacy systems,services and new 5G frequency bands should be considered comprehensively so that legacy network investmentcan be reused to maximize the profits. In later phase of 5G layout,network service quality and how to meet diverse requirementwill be main focus. The key issues of 5G radio access network deployment start from frequency band analysis andthen take the 5G network deployment for a city as an example to discuss the key points of network deployment and the correspondingtechnical solutions’advantages and disadvantages. In addition,how to lower down network latency and networkslicing are introduced. In the end multi evolution paths are given as a reference for 5G radio access network deployment.