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TR 24.826 (CT1)
Study on impacts on signalling between User Equipment (UE) and core network from energy saving

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V11.0.0 (Wzip)    2011/06    33 p.

Rapporteur:  Mr. Punz, Gottfried
See also:  –

This TR contains the result of the study on the impacts on signalling between the UE and core network when energy saving measures are applied to network entities.

The study aims, within the defined CT1 work areas, at:
  • analysing UE idle mode procedures and signalling between the UE and core network resulting from switch on/off of radio equipment in all types of 3GPP accesses, including home cell deployment and I-WLAN, as well as power adaptation of radio equipment (where applicable);
  • performing a corresponding analysis for connected mode UEs;
  • analysing similar impacts from activation status of non-3GPP access networks;
  • documenting limitations, weaknesses and inefficiencies in these procedures, with emphasis on mass effects in the signalling between the UE and core network; and
  • studying potential optimizations and enhancements to these procedures.
The study also evaluates potential enhancements to 3GPP specifications under CT1 responsibility.

This study takes into account decisions made by other 3GPP working groups in their related work.


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1   Scope   Word-p. 6
2   References   Word-p. 7
3   Definitions, symbols and abbreviations   Word-p. 8
4   Overview   Word-p. 9
5   Analysis of signalling procedures between the UE and core network for energy saving scenarios   Word-p. 11
5.1   Switch-off/on of 3GPP macro cells
5.2   Switch-off/on of 3GPP home cells   Word-p. 16
5.3   Switch-off/on of WLAN access networks in 3GPP I-WLAN
5.4   Switch-off/on of non-3GPP access networks   Word-p. 18
5.5   Power adaptation for 3GPP macro cells   Word-p. 19
5.6   Common issues   Word-p. 21
5.7   Additional analysis
6   Potential optimizations and enhancements in procedures   Word-p. 24
7   Conclusions   Word-p. 31
A   Change history   Word-p. 33

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