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Content for  TR 24.826  Word version:  11.0.0

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1  ScopeWord‑p. 6
The present document 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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2  ReferencesWord‑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.
[1]
TR 21.905: "Vocabulary for 3GPP Specifications".
[2]
TR 32.826: "Study on Energy Savings Management (ESM)".
[3]
TS 23.234: "3GPP system to Wireless Local Area Network (WLAN) interworking; System description".
[4]
TS 24.234: "3GPP System to Wireless Local Area Network (WLAN) interworking; WLAN User Equipment (WLAN UE) to network protocols".
[5]
TS 33.234: "3G security; Wireless Local Area Network (WLAN) interworking security".
[6]
TS 32.551: "Energy Saving Management (ESM); Concepts and requirements".
[7]
TS 24.302: "Access to the 3GPP Evolved Packet Core (EPC) via non-3GPP access networks".
[8]
TR 23.888: "System Improvements for Machine-Type Communications".
[9]
TS 29.118: "Mobility Management Entity (MME) - Visitor Location Register (VLR) SGs interface specification".
[10]
TS 24.167: "3GPP IMS Management Object (MO); Stage 3".
[11]
TS 24.216: "Communication Continuity Management Object".
[12]
TS 24.301: "Non-Access-Stratum (NAS) protocol for Evolved Packet System (EPS)".
[13]
TS 24.237: "IP Multimedia Subsystem (IMS) Service Continuity; Stage 3".
[14]
TS 23.251: "Network Sharing; Architecture and functional description".
[15]
TS 23.401: "GPRS enhancements for E-UTRAN access".
[16]
TS 23.402: "Architecture enhancements for non-3GPP accesses".
[17]
TS 23.261: "IP flow mobility and seamless Wireless Local Area Network (WLAN) offload; Stage 2".
[18]
TS 24.303: "Mobility management based on Dual-Stack Mobile IPv6; Stage 3".
[19]
TR 36.927: "Evolved Universal Terrestrial Radio Access (E-UTRA); Potential solutions for energy saving for E-UTRAN".
[20]
TS 24.368: "Non-Access Stratum (NAS) configuration Management Object (MO)".
[21]
TS 24.008: "Mobile radio interface Layer 3 specification; Core network protocols; Stage 3".
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3  Definitions, symbols and abbreviationsWord‑p. 8

3.1  Definitions

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.
Macro cell:
generic term used for all cell types under operator's control (in contrast to "home cells" or "femto cells"); in this sense it includes also so-called "micro" and "pico" cells (used in the context of hierarchical cell structures).
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3.2  Abbreviations

For the purposes of the present document, the abbreviations given in TR 21.905 and the following apply. An abbreviation defined in the present document takes precedence over the definition of the same abbreviation, if any, in TR 21.905.

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