基于HDSS构建800 MHz的5G和LTE共覆盖研究与实践

Research and Application of Broad Coverage for 5G and LTE Network at 800 MHz Based on HDSS

800 MHz频段5G是广覆盖很好选择,但是由于800 MHz频率资源短缺,传统的硬重耕方式舍旧换新,不能适应现网需要并且资源投入较大。而频谱动态共享的技术可以在现有4G网络上快速进行5G部署,实现4G和5G双网并存,并动态扩展演进。该文通过对HDSS的技术的15 MHz HDSS动态频谱共享(15 MHz的NR包含10 MHz的LTE)方案,对共享资源调度、干扰规避、功率配置等关键技术问题进行了分析验证,并对HDSS组网下的多种场景进行了测试,给出了实际配置建议,对实现绿色共享频率资源,4G和5G网络协同、5G的广覆盖等方面具有参考价值。

The 800 MHz frequency band in 5G is an essential choice for extensive coverage.However,due to a scarcity of 800 MHz frequency resources,the conventional approach of complete infrastructure renewal proves inadequate,as it fails to meet current network requirements and demands substantial resource investment.The technology of dynamic spectrum sharing can leverage existing 4G networks for the rapid deployment of 5G,enabling the coexistence of both 4G and 5G networks and facilitating dynamic construction and evolution.This paper scrutinizes and validates critical technical aspects,including shared resource scheduling,interference mitigation,and power configuration,through the 15 MHz HDSS dynamic spectrum sharing scheme(comprising 15 MHz NR with 10 MHz LTE)within the HDSS technology framework.Furthermore,it conducts network testing on various networking models under the HDSS framework,offering practical configuration recommendations.These findings hold valuable insights for the realization of environmentally friendly shared frequency resources,fostering collaborative integration between 4G and 5G networks,and facilitating broad coverage for 5G networkse.