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Analysis and Field Trial on Interference Coexistence of 5G NR and 4G LTE Dynamic Spectrum Sharing

机译：5G NR和4G LTE动态谱共享干扰共存的分析与现场试验

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Nowadays, operators worldwide deploy 5G on FR1 to deliver 5G services with higher capacity for initial 5G deployment. However, concerning coverage areas and indoor penetration, it is necessary to find the coverage layer for 5G in low band. Due to all accessible low bands are occupied by existing technologies, such as Long-Term Evolution (LTE). Thanks to Dynamic spectrum sharing (DSS) technology, which can ensure LTE and NR harmonious coexistence in the same frequency band at the same time. On the basis of a comprehensive study of LTE and NR physical layer, DSS technology is introduced and the problem of LTE and NR interference coexistence was analyzed based on an FDD system. Furthermore, a field trial was conducted to examine interference coexistence of 5G NR and 4G LTE under DSS. Results show that LTE neighbor cell has more impact on DSS cell because of LTE always-on signals. Finally, some suggestions on DSS deployment are gave to the mobile operators for network construction.
机译：如今，全球运营商在FR1上部署了5G，以提供5G服务，具有更高的初始5G部署能力。 然而，关于覆盖区域和室内渗透，有必要在低频带中找到5G的覆盖层。 由于所有可访问的低频段都被现有技术占用，例如长期演进（LTE）。 由于动态频谱共享（DSS）技术，可以同时确保LTE和NR和谐共存在同一频带中。 基于LTE和NR物理层的全面研究，引入了DSS技术，基于FDD系统分析了LTE和NR干扰共存的问题。 此外，进行现场试验以检查DSS下5G NR和4G LTE的干扰共存。 结果表明，由于LTE始终导致信号，LTE邻居单元对DSS单元具有更多影响。 最后，对DSS部署的一些建议是向移动运营商提供网络建设。

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