This work presents a potential solution for enabling the use of multicast in the 5G New Radio Release 17, called 5G NR Mixed Mode. The proposed multicast/broadcast mode follows one of the two approaches envisaged in 3GPP, which enables a dynamic and seamless switching between unicast and multicast, both in the downlink and the uplink. This paper also provides a performance evaluation of several IMT-2020 KPIs, including available data rate and spectral efficiency, user and control plane latencies, energy efficiency, and mobility, highlighting the potential advantages of this solution over unicast in relevant scenarios. Finally, other multipoint–based KPIs such as coverage or packet loss rate are also evaluated by means of system level simulations.

中文翻译：

---

5G混合模式：NR组播-广播业务

这项工作提出了一种潜在的解决方案，可以在 5G 新无线电第 17 版（称为 5G NR 混合模式）中使用多播。建议的多播/广播模式遵循 3GPP 中设想的两种方法之一，它能够在下行链路和上行链路中实现单播和多播之间的动态无缝切换。本文还提供了几个 IMT-2020 KPI 的性能评估，包括可用数据速率和频谱效率、用户和控制平面延迟、能源效率和移动性，突出了该解决方案在相关场景中相对于单播的潜在优势。最后，还通过系统级模拟来评估其他基于多点的 KPI，例如覆盖率或丢包率。