3 Definitions and abbreviations

37.4803GPPE1 general aspects and principlesRelease 17TS

3.1 Definitions

For the purposes of the present document, the terms and definitions given in 3GPP 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 3GPP TR 21.905 [1].

eNB-CP: as defined in TS 36.401 [9].

eNB-UP: as defined in TS 36.401 [9].

en-gNB: as defined in TS 37.340 [7].

gNB-CU: as defined in TS 38.401 [2].

gNB-CU-CP: as defined in TS 38.401 [2].

gNB-CU-UP: as defined in TS 38.401 [2].

gNB-DU: as defined in TS 38.401 [2].

gNB: as defined in TS 38.300 [6].

IAB: as defined in TS 38.300 [6].

ng-eNB-CU: as defined in TS 37.470 [8].

ng-eNB-CU-CP: as defined in TS 38.401 [2].

ng-eNB-CU-UP: as defined in TS 38.401 [2].

ng-eNB-DU: as defined in TS 37.470 [8].

3.2 Abbreviations

For the purposes of the present document, the abbreviations given in 3GPP 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 3GPP TR 21.905 [1].

DL Downlink

DRB Data Radio Bearer

E1AP E1 Application Protocol

IP Internet Protocol

MBS Multicast/Broadcast Service

PTP Point to Point

PTM Point to Multipoint

SCTP Stream Control Transmission Protocol

TNL Transport Network Layer