Standardization work is an important technical foundation for realizing the convergence of 5G and the industrial Internet, and the national level attaches great importance to the standardization of 5G industrial interconnection.On November 19, 2019, the Ministry of Industry and Information Technology (MIIT) issued the5G+Industrial Internet 512 Project Promotion ProgramOn December 22, 2020, the Ministry of Industry and Information Technology (MIIT) issued the "5G+Industrial Internet" Convergence Standard System".Action Plan for the Innovative Development of the Industrial Internet (2021-2023)It proposes to accelerate the development of key technical standards such as "5G+Industrial Internet", and by 2023, establish a more complete industrial Internet standardization mechanism, basically form a unified, integrated and open industrial Internet standard system, and complete the development of more than 60 key standards.
Guided by the above policy.Alliance for Industrial Internet Industry (AII)Developed and released at the end of 2021Industrial Internet Standards System (version 3.0)The most significant change is the establishment of a separate "5G+Industrial Internet" standard subcategory, which includes six dimensions: network technology and networking, adaptive enhancement technology, terminals, edge computing, applications and network management. The National Technical Committee for Standardization of Industrial Process Measurement, Control and Automation (SAC/TC124) has also formulated a series of national standards, such as Industrial Wireless Cellular Networks, etc. CCSA TC13 (Technical Working Committee on Industrial Internet) has initiated projects to prepare relevant 5G+Industrial Internet standards for the coal mine, iron and steel, port, cement, electric power grid, and petrochemical industries, respectively.

In addition.3GPPIt is also stepping up its development of 5G industry-related standards. Since 3GPP R15 started defining 5G standards, 5G industrial-related features have been iterated in 3GPP for three versions. R16 introduces 5G LAN capability to support direct transmission of Layer 2 industrial protocols and Bridge function of TSN; R17 further enhances the deterministic network transmission architecture with the introduction of a new network element, TSCTSF (Time Sensitive Communication and Time Synchronization Function) so that it can independently support industrial deterministic network mechanisms without relying on an external TSN network; R18 Newly established 5TRS_URLLC: and GMEC, which are more flexible and open to the synchronization capabilities of 5G systems, dynamic group management, and support for local area LAN communication across data centers/SMFs.
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