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