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TR 23.730 (SA2)
Study on extended architecture support for Cellular Internet of Things

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(W-zip) V14.0.0    2016/12    83 p.


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


The present document studies and evaluates the architecture enhancement to support Cellular Internet of Things (CIoT). The scope includes NB-IoT, eMTC, and EC-GSM-IoT.

The study will consider architecture enhancements/simplifications in the following areas:
  • Support of authorization of use of Coverage Enhancement functionality;
  • Reliable communication service between UE and SCEF;
  • Inter-RAT idle mode mobility support for NB-IoT;
  • Review existing multicast/broadcast services architecture to ensure suitability for NB-IoT;
  • Review existing Location services architecture to ensure suitability for UEs using Control Plane CIoT EPS optimisation;
  • QoS differentiation between UEs using control plane EPS CIoT optimizations; and
  • CN overload protection for UE supporting control plane EPS CIoT optimizations.


 

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1   Scope   Word-p. 8
2   References
3   Definitions and abbreviations   Word-p. 9
4   Architectural Considerations and Assumptions   Word-p. 10
5   Key Issues
5.1   Key Issue 1 - Authorization of use of Coverage Enhancement
5.2   Key Issue 2 - Reliable communication service between UE and SCEF   Word-p. 11      Up
5.3   Key Issue 3 - Inter RAT idle mode mobility to/from NB-IoT
5.4   Key Issue 4 - Reuse of existing multicast/broadcast architecture
5.5   Key Issue 5 - Reuse of Location Services architecture for Control Plane CIoT EPS optimization
5.6   Key Issue 6 - Inter UE QoS for NB-IoT Control Plane Optimisation   Word-p. 17
5.7   Key Issue 7 - CN overload control for data transfer via Control Plane EPS CIoT Optimization

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