5G and 6G wireless communications allow for novel and disruptive applications. While 5G was strongly focused on improvements on QoS and QoS guarantees that are necessary for industrial deployments, 6G will have a disruptive impact on possible use cases. Here, nearly each use case requires time synchronization of the involved systems. While PTP in its variations, e.g. IEEE 1588 v2.1 or IEEE 802.1AS, has established as standard for wireline systems, time synchronization of wireless or hybrid systems is still subject to research. Thus, the so-called RBIS protocol, which was originally developed and investigated for Wi-Fi, is mapped to 5G. This is possible, because both systems are infrastructure based and a suitable broadcast that fits to the requirements of RBIS protocol can be found in the control layer of 5G NR. Even if the 1 microsecond requirement that is required by some applications is not yet cracked, the accuracy of 1.3 microseconds and precision of <4.3 microseconds for non-invasive extension of existing 5G deployments is highly promising.
翻译:5G和6G无线通信允许新的和破坏性的应用。 5G强烈侧重于改进工业部署所必需的QoS和QOS保障,6G将对可能的使用案例产生破坏性影响。这里,几乎每个使用案例都需要相关系统的时间同步。PTP的变式,如IEEE 1588 v2.1或IEEE 802.1AS等,已经确定为有线系统的标准,无线或混合系统的时间同步仍在研究中。因此,最初为无线-Fi开发和调查的所谓RBIS协议被映射到5G。这是可能的,因为两个系统都是基于基础设施的,而且符合RBIS协议要求的适当广播都可在5G NR的控制层找到。即使某些应用所需的一秒要求尚未被打破,现有5G部署非侵入扩展所需的1.3微秒的精确度和小至4.3微秒的精确度也非常有希望。