3 Definitions, symbols and abbreviations

36.4453GPPEvolved Universal Terrestrial Radio Access Network (E-UTRAN)M1 data transportRelease 17TS

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].

M1: interface between an eNB and an EPC for MBMS data delivery, providing an interconnection point between the EUTRAN and the EPC. M1 is a user plane interface between E-UTRAN and EPC. It is also considered as a reference point.

3.2 Symbols

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

Symbol format (EW)

<symbol> <Explanation>

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].

DiffServ Differentiated Service

eNB E-UTRAN Node B

EPC Evolved Packet Core

E-UTRA Evolved UTRA

E-UTRAN Evolved UTRAN

GTP GPRS Tunnelling Protocol

IP Internet Protocol

MBMS Multimedia Broadcast Multicast Service

TCP Transmission Control Protocol

TEID Tunnel Endpoint Identifier

UDP User Datagram Protocol