Abstract
The industrial Internet of things (IIoT) is an important engine for manufacturing enterprises to provide intelligent products and services. The data analysis model represented by digital twins is the core of IIoT development in the manufacturing industry. With the development of IIoT, more and more attention has been paid to the application of ultra-reliable and low latency communications (URLLC) in the field of IIoT. This paper mainly introduces the development of 3GPP for URLLC in reducing delay and enhancing reliability, as well as the research on little jitter and high transmission efficiency, and further analyzes the enhanced key technologies required in the IIoT. Finally, the application of IIoT in digital twins is analyzed according to the actual situation.
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