3 Definitions and abbreviations

38.4153GPPNG-RANPDU session user plane protocolRelease 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].

Multicast Broadcast User Plane Function: as defined in TS 23.501 [5].

NG-U: logical interface between NG-RAN node and UPF as described in TS 38.300 [2].

Xn-U: logical interface between NG-RAN nodes as defined in TS 38.300 [2].

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].

MBS Multicast Broadcast Service

MB-UPF Multicast Broadcast User Plane Function

PDCP Packet Data Convergence Protocol

PPI Paging Policy Indicator

PPP Paging Policy Presence

QFI QoS Flow Identifier

RQA Reflective QoS Attribute

RQI Reflective QoS Indication

SN Sequence Number

UP User Plane

UPF User Plane Function