5G wireless has ushered in new promises of improved performance and ubiquitous connectivity. However, a continuous increase in connected devices and the proliferation of the Internet of Things have already created skepticism about the capacity of 5G wireless to satisfy the huge data requirements across a myriad of devices. This has made wireless researchers, vendors, and standards bodies look beyond 5G wireless by extending 5G New Radio (NR) in unlicensed bands. Operation in unlicensed bands requires additional channel sensing and fairness across different types of networks. This makes power consumption in bat-tery-constrained mobile devices more challenging. In this article, we introduce two different aspects of discontinuous reception (DRX) for energy and resource savings in 5G NR unlicensed networks. As 5G NR is based on directional beams, the proposed solutions are based on beam searching and beam awareness. Beam-aware DRX explores next generation NodeB's assistance to alleviate mobile user equipment's (UE's) beam searching burden and results in more power saving. Simulation experiments using real wireless traces demonstrate that our NR-U DRX solutions significantly improve UE's power saving and network resource utilization over existing 5G NR DRX.

中文翻译：

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未经许可的新无线电中的DRX：超越5G无线技术的一步

5G无线已经迎来了提高性能和无处不在的连接的新希望。但是，随着连接设备的不断增加以及物联网的普及，人们已经对5G无线功能能否满足众多设备的巨大数据需求表示怀疑。通过在无执照频段扩展5G新无线电（NR），无线研究人员，供应商和标准机构已经超越了5G无线领域。在非许可频段中进行操作需要跨不同类型的网络进行额外的信道感知和公平性。这使受蝙蝠限制的移动设备的功耗更具挑战性。在本文中，我们介绍了不连续接收（DRX）的两个不同方面，以节省5G NR非许可网络中的能源和资源。由于5G NR基于定向波束，提出的解决方案基于波束搜索和波束感知。具有波束感知功能的DRX探索了下一代NodeB的协助，以减轻移动用户设备（UE）的波束搜索负担，并进一步节省功率。使用实际无线轨迹进行的仿真实验表明，与现有5G NR DRX相比，我们的NR-U DRX解决方案显着提高了UE的节能和网络资源利用率。