3 Definitions, symbols and abbreviations

37.3243GPPEvolved Universal Terrestrial Radio Access (E-UTRA) and NRRelease 17Service Data Adaptation Protocol (SDAP) specificationTS

3.1 Definitions

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

PC5 QoS flow to SL-DRB mapping rule: a mapping rule determining on which SL-DRB packets of a PC5 QoS flow shall be carried.

QoS flow to DRB mapping rule: a mapping rule determining on which DRB packets of a QoS flow shall be carried.

Reflective QoS flow to DRB mapping: a QoS flow to DRB mapping scheme where a UE monitors the QoS flow to DRB mapping rule in the DL, and applies it to in the UL.

NR sidelink communication: AS functionality enabling at least V2X communication as defined in TS 23.287 [5], between two or more nearby UEs, using NR technology but not traversing any network node.

3.2 Abbreviations

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

PQFI PC5 QoS Flow ID

QFI QoS Flow ID

RDI Reflective QoS flow to DRB mapping Indication

RQI Reflective QoS Indication

SDAP Service Data Adaptation Protocol

SL Sidelink

SL-DRB Sidelink Data Radio Bearer