Industrial wireless control systems are mainly designed on the premise of time-sensitive ultra-reliable low-latency communications (URLLC). With the introduction of survival time to the quality of service requirements of such systems, the design paradigm has evolved from typical link reliability (i.e., minimizing packet error rate), to service availability, that is, minimizing the chance of burst errors, which can cause loss of communication for longer than survival time. In this article, we address the implications of this evolution and present a set of survival time strategies that are designed to guarantee end-to-end dependable industrial wireless control. To ensure service availability, transmissions are divided into normal and survival modes. The presented strategies include scheduling and link adaptation that are designed to target the differences between these modes of operation, traffic prioritization to enhance service availability for users in survival mode, and more efficient multi-node, multi-path, and multi-carrier communications techniques.

中文翻译：

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工业无线控制的通信生存策略

工业无线控制系统主要是在时间敏感的超可靠低延迟通信（URLLC）的前提下设计的。随着将生存时间引入此类系统的服务质量要求，设计范式已经从典型的链路可靠性（即最小化分组错误率）演变为服务可用性，即最小化突发错误的机会，这可以导致失去通信的时间超过生存时间。在本文中，我们讨论了这种演变的影响，并提出了一套旨在保证端到端可靠工业无线控制的生存时间策略。为确保服务可用性，传输分为正常模式和生存模式。