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TR 23.720 (SA2)
Study on architecture enhancements for
Cellular Internet of Things

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V13.0.0 (Wzip)    2016/03    94 p.

Rapporteur:  Mr. Jain, Puneet
See also:  CIoT-related TS/TR    

The present document studies and evaluates the architecture enhancement to support ultra-low complexity, power constrained, and low data-rate 'Internet of Things' devices.

The study will consider architecture enhancements/simplifications in the following areas:
  • Support of highly efficient handling of frequent and infrequent small data transmissions (e.g. based on the traffic model in TR 45.820) with minimised overhead for system signalling without compromising e.g. security.
  • Support of power consumption optimisations and/or using existing ones that have been developed for EPS or GPRS.
  • Assessing simplification of Mobility Management and Session Management procedures.
  • Support of paging optimisations for UEs requiring coverage enhancements.
The present document will also consider system architecture alternatives to address the points above.


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1   Scope   Word-p. 8
2   References
3   Definitions and abbreviations   Word-p. 9
4   Architectural Considerations and Assumptions
5   Key Issues
5.1   Key Issue 1 - Architecture Reference Model for Cellular IoT      Up
5.2   Key Issue 2 - Efficient support of infrequent small data transmission for Cellular IoT
5.3   Key Issue 3 - Efficient support of tracking devices using small data transmission for Cellular IoT
5.4   Key Issue 4 - Support of efficient Paging area management for Cellular IoT
5.5   Key Issue 5: Selection of CIoT-EPC Dedicated Core Network   Word-p. 13
5.6   Key Issue 6 - Support of Non IP data
5.7   Key Issue 7 - Support of SMS
5.8   Key Issue 8 - Control of small data misuse
5.9   Key Issue 9 - Optimised Support of SMS transmission
5.10   Key Issue 10 - Authorization of use of Coverage Enhancement   Word-p. 14
5.11   Key Issue 11 - Header compression enhancements for CIOT

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