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Content for  TR 23.733  Word version:  15.1.0

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1  Scopep. 8

The present document is the Technical Report for the study item "Study on architecture enhancements to ProSe UE-to-Network Relay". Its objective is to study and evaluate potential architecture enhancements needed to support the connection of an Evolved ProSe Remote UE with UICC with the network via an Evolved ProSe UE-to-Network Relay using E-UTRA (in coverage, in enhanced coverage or out of coverage) or Non-3GPP access technologies (enhancements to Non-3GPP access technologies are not part of this study).

2  Referencesp. 8

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.
TR 21.905: "Vocabulary for 3GPP Specifications".
TS 22.278: "Service requirements for the Evolved Packet System (EPS)".
TR 36.746: "Study on further enhancements to LTE Device to Device (D2D), User Equipment (UE) to network relays for Internet of Things (IoT) and wearables".
TS 23.401: "General Packet Radio Service (GPRS) enhancements for Evolved Universal Terrestrial Radio Access Network (E-UTRAN) access".
TS 36.413: "Evolved Universal Terrestrial Radio Access Network (E-UTRAN); S1 Application Protocol (S1AP)".
TS 23.303: "Proximity-based services (ProSe); Stage 2".
TS 24.334: "Proximity-services (ProSe) User Equipment (UE) to ProSe function protocol aspects; Stage 3".
TS 23.285: "Architecture enhancements for V2X services".
TS 33.303: "Proximity-based Services (ProSe); Security aspects".
TS 32.251: "Telecommunication management; Charging management; Packet Switched (PS) domain charging".
TS 23.703: "Study on architecture enhancements to support Proximity-based Services (ProSe)".
TS 36.300: "Evolved Universal Terrestrial Radio Access (E-UTRA) and Evolved Universal Terrestrial Radio Access Network (E-UTRAN); Overall description; Stage 2".

3  Definitions, symbols and abbreviationsp. 9

3.1  Definitionsp. 9

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.
a Layer 2 relay in which a UE supports Indirect 3GPP Communication between an eRemote-UE and the 3GPP network, using E-UTRA, WLAN or Bluetooth between the eRemote-UE and the relay.
a UE that is connected to a network using an Indirect 3GPP Communication.
Indirect 3GPP Communication:
The signalling and communication between a UE and 3GPP network, where there is an eRelay-UE between the eRemote-UE and the 3GPP network.

3.2  Abbreviationsp. 9

For the purposes of the present document, the abbreviations given in TR 21.905 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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