900 MHz频段部署策略研究与实践

Research and Practice of 900 MHz Band Deployment Strategy

从KPI、覆盖、干扰等多角度洞察U900网络现状,从理论上分析了900MHz频段优势,并通过测试对比了4种制式在覆盖能力、语音业务和数据业务上的感知差异;从共站信息、业务承载占比、站址密度、上行底噪等多个维度进行分析和评估,降低U900关闭对现网用户影响。深入挖掘900MHz频段网络潜力,探索面向未来的900MHz频谱演进和部署策略,制定了符合北京实际情况的900MHz改造实施方案,为5G网络部署奠定了良好的基础。

From KPIs,coverage,interference and other perspectives to gain insight into the current status of the U900 network,it theo-retically analyzes the advantages of 900 MHz,compares the perception differences of the four systems in coverage,voice ser-vice and data service through the test.It makes an analysis and evaluation from multiple dimensions such as shared-site in-formation,service ratio,sites density,and uplink interference,aiming to minimize the impact of U900 shutdown on existing network users.The potential of 900 MHz band network is deeply explored,and the future-oriented 900 MHz spectrum evolu-tion and deployment strategy are formulated.A 900 MHz retrofit implementation plan in line with Beijing’s actual situation is formulated,which lays a solid foundation for 5G network.