Study on architecture enhancements for Cellular Internet of Things (CIoT)
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 [4]) 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.