3 Definitions of terms, symbols and abbreviations

38.3513GPPNRRelease 17Sidelink Relay Adaptation Protocol (SRAP) SpecificationTS

3.1 Terms

For the purposes of the present document, the terms 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].

Egress RLC channel: a RLC channel on which a packet is transmitted by a U2N Relay UE, a U2N Remote UE or a network node.

Egress link: a radio link on which a packet is transmitted by a U2N Relay UE, a U2N Remote UE or a network node.

Ingress RLC channel: a RLC channel on which a packet is received from a U2N Relay UE, a U2N Remote UE or a network node.

Ingress link: a radio link on which a packet is received from a U2N Relay UE, a U2N Remote UE or a network node.

U2N Relay UE: a UE that provides functionality to support connectivity to the network for U2N Remote UE(s).

U2N Remote UE: a UE that communicates with the network via a U2N Relay UE.

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].

SRAP Sidelink Relay Adaptation Protocol

U2N UE-to-Network