3 Definitions, symbols and abbreviations

36.4563GPPEvolved Universal Terrestrial Radio Access Network (E-UTRAN)Release 17SLm interface general aspects and principlesTS

3.1 Definitions

For the purposes of the present document, the terms and definitions given in TR 21.905 [1] 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 [1].

3.2 Symbols

For the purposes of the present document, the following symbols apply:

3.3 Abbreviations

For the purposes of the present document, the abbreviations given in TR 21.905 [1] 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 [1].

E-SMLC E-UTRAN Serving Mobile Location Centre

eNB E-UTRAN Node B

EPC Evolved Packet Core

EPS Evolved Packet System

E-UTRAN Evolved UTRAN

IP Internet Protocol

LMU Location Measurement Unit

LTE Long Term Evolution

MME Mobility Management Entity

O&M Operation and Maintenance

QoS Quality of Service

RNL Radio Network Layer

SLm SLm Control Plane Interface

SLmAP SLm Application Protocol

SAP Service Access Point

SCTP Stream Control Transmission Protocol

TNL Transport Network Layer

UTDOA Uplink Time Difference of Arrival

3.4 Specification notations

For the purposes of the present document, the following notations apply:

Procedure When referring to a procedure in the specification the Procedure Name is written with the first letters in each word in upper case characters followed by the word "procedure", e.g. Radio Network Layer procedures.

Message When referring to a message in the specification the MESSAGE NAME is written with all letters in upper case characters followed by the word "message", e.g. RADIO LINK SETUP REQUEST message.