URLLC have the potential to enable a new range of applications and services: from wireless control and automation in industrial environments to self-driving vehicles. 5G wireless systems are faced by different challenges for supporting URLLC. Some of the challenges, particularly in the downlink direction, are related to the reliability requirements for both data and control channels, the need for accurate and flexible link adaptation, reducing the processing time of data retransmissions, and the multiplexing of URLLC with other services. This article considers these challenges and proposes state-of-the-art solutions covering different aspects of the radio interface. In addition, system-level simulation results are presented, showing how the proposed techniques can work in harmony in order to fulfill the ambitious latency and reliability requirements of upcoming URLLC applications.

中文翻译：

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实现超可靠的低延迟通信：挑战和可预见的系统增强

URLLC有潜力实现新的应用和服务范围：从工业环境中的无线控制和自动化到自动驾驶汽车。5G无线系统在支持URLLC方面面临着不同的挑战。一些挑战，特别是在下行链路方向上，与数据和控制信道的可靠性要求，对精确灵活的链路自适应的需求，减少数据重传的处理时间以及URLLC与其他服务的复用有关。本文考虑了这些挑战，并提出了涵盖无线接口不同方面的最新解决方案。此外，还介绍了系统级的仿真结果，