## 3 Definitions and abbreviations

38.4723GPPF1 signalling transportNG-RANRelease 16TS

## 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].

en-gNB: as defined in TS 37.340 [8]

F1: interface between a gNB-CU and a gNB-DU, providing an interconnection point between the gNB-CU and the gNB-DU.

F1-C: Reference point for the control plane protocol between gNB-CU and gNB-DU.

gNB-CU: as defined in TS 38.401 [7]

gNB-DU: as defined in TS 38.401 [7]

gNB: as defined in TS 38.300 [6]

SCTP endpoint: as defined in IETF RFC 4960 (2007-09) [5]

SCTP association: as defined in IETF RFC 4960 (2007-09) [5]

## 3.3 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].

DiffServ Differentiated Service

IANA Internet Assigned Number Authority

IP Internet Protocol

PPP Point to Point Protocol

SCTP Stream Control Transmission Protocol