Content for TR 22.866 Word version: 17.1.0
1 Scope
2 References
3 Definitions, symbols and abbreviations
3.1 Definitions
3.2 Abbreviations
4 Overview
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1 Scope p. 7
The present document examines several use cases with respective KPIs in different domains (e.g. inHome, SmartCities, SmartFarming, SmartFactories, Smart Energy, Public Safety, Logistics) and identifies new potential requirements for relays for energy efficiency and extensive coverage.
2 References p. 7
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.
3 Definitions, symbols and abbreviations p. 7
3.1 Definitions p. 7
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.
Indirect 3GPP Communication:
The signalling and communication between a UE and 3GPP network via one or more UE-to-Network Relay UEs.
Network operator:
The entity which offers communication services.
UE-to-Network Relay UE:
a relay UE between a remote UE and the 3GPP network.
3.2 Abbreviations p. 7
4 Overview p. 8
5G contemplates many different scenarios and verticals (inHome, SmartFarming, SmartFactories, Public Safety and others). Many of them are new while others have been already covered in earlier generations of mobile networks. What all of them have in common is that we can find use cases where more extensive coverage with good energy efficiency is needed in comparison to what earlier generations (3G, 4G) could offer.
Nevertheless, all these use cases present an heterogeneous set of performance requirements. While IoT use cases will address small data transmissions this is not the case for inHome scenarios where high bandwidth is expected. SmartFactories use cases have latency requirements that other use cases will not need.
The use of multi-hop relays will help to improve the coverage of the 5G system with good energy efficiency.
