3 Definitions and abbreviations

38.4203GPPNG-RANRelease 17TSXn general aspects and principles

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].

Boundary IAB-node: as defined in TS 38.401 [2].

corresponding node: as defined in TS 38.425 [7].

F1-terminating IAB-donor-CU: as defined in TS 38.401 [2].

IAB-DU: as defined in TS 38.300 [8].

IAB-MT: as defined in TS 38.300 [8].

Non-F1-terminating IAB-donor-CU: as defined in TS 38.401 [2].

NG-RAN node: as defined in TS 38.300 [8].

secondary node: as defined in TS 37.340 [9].

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].

IAB Integrated Access and Backhaul

MBS Multicast Broadcast Service

QMC QoE Measurement Collection

QoE Quality of Experience

SCTP Stream Control Transmission Protocol

Xn-C Xn Control plane

Xn-U Xn User plane