The present document implements Option 2 for decimal and thousands separator characters: "The decimal sign shall be a full-stop (period). The thousands separator shall be a comma." (clause 6.6.7 of TR 21.801 - v16.2.0).
The present document addresses a challenging class of vertical applications, namely cyber-physical control applications, which require very high levels of communication service availability, and some of them also require very low end-to-end latencies.
Real-time Ethernet is one of the established wireline communication technologies for cyber-physical control applications, and this specification identifies requirements that 5G systems must meet to support real-time Ethernet.
The present document provides new Stage 1 requirements based on the input from relevant stakeholders of the respective vertical domains.
The present document provides Stage 1 normative service requirements for 5G systems, in particular service requirements for cyber-physical control applications in vertical domains and requirements for auxiliary applications. In the context of the present document, cyber-physical systems are to be understood as systems that include engineered, interacting networks of physical and computational components; control applications are to be understood as applications that control physical processes. Examples for auxiliary applications are distributed sensing and asset monitoring.
Communication services supporting cyber-physical control applications need to be ultra-reliable and, in some cases, the end-to-end latency must be very low. Communication for cyber-physical control applications supports operation in various vertical domains, for instance industrial automation, Smart Grid .
The aspects addressed in the present document include:
end-to-end service performance requirements and network performance requirements related to these end-to-end service performance requirements;
support for Ethernet services specific to industrial/high performance use cases. Related Ethernet functionalities include, for example, those in IEEE 802.1Qbv;
direct device connection and indirect network connection for cyber-physical applications.
The following documents contain provisions which, through reference in this text, constitute provisions of the present document.
References are either specific (identified by date of publication, edition number, version number, etc.) or non-specific.
For a specific reference, subsequent revisions do not apply.
For a non-specific reference, the latest version applies. In the case of a reference to a 3GPP document (including a GSM document), a non-specific reference implicitly refers to the latest version of that document in the same Release as the present document.
B. Al-Omar, B., A. R. Al-Ali, R. Ahmed, and T. Landolsi, "Role of Information and Communication Technologies in the Smart Grid": Journal of Emerging Trends in Computing and Information Sciences, Vol. 3, pp. 707-716, 2015.
H. Kagermann, W. Wahlster, and J. Helbig, "Recommendations for implementing the strategic initiative INDUSTRIE 4.0": Final report of the Industrie 4.0 working group, acatech - National Academy of Science and Engineering, Munich, April 2013.
For the purposes of the present document, the terms and definitions given in TR 21.905 and the following apply. A term defined in the present document takes precedence over the definition of the same term, if any, in TR 21.905.
numerical value that can be used for characterising the dynamic behaviour of communication functionality from an application point of view.
the maximum allowed time offset within a synchronisation domain between the sync master and any sync device.
clock synchronisation service:
the service to align otherwise independent user-specific UE clocks.
discrepancy between a computed, observed or measured value or condition and the true, specified or theoretically correct value or condition.
automation application in industrial automation branches typically with discrete characteristics of the application to be automated with specific requirements for determinism, low latency, reliability, redundancy, cyber security, and functional safety.
a user-specific synchronization clock set to a reference timescale such as the International Atomic Time.
quantity not essential for the performance of an item but affecting its performance.
automation application in industrial automation branches typically with continuous characteristics of the application to be automated with specific requirements for determinism, reliability, redundancy, cyber security, and functional safety.
For the purposes of the present document, the abbreviations given in TR 21.905 and the following apply. An abbreviation defined in the present document takes precedence over the definition of the same abbreviation, if any, in TR 21.905.