RRCReestablishment

RRC message · TS 38.331 v19.4.0 (2026-09) · clause 6.2.2

RRCReestablishment is an RRC message of 3GPP TS 38.331 (38331), the 5G NR Radio Resource Control (RRC) protocol.

First seen v15.3.0 (2018-09) · Last changed v17.1.0 (2022-07), in RRCReestablishment-v1700-IEs

Definition

The RRCReestablishment message is used to re-establish SRB1.

RRCReestablishment ::=              SEQUENCE {
    rrc-TransactionIdentifier           RRC-TransactionIdentifier,
    criticalExtensions                  CHOICE {
        rrcReestablishment                  RRCReestablishment-IEs,
        criticalExtensionsFuture            SEQUENCE {}
    }
}

Candidate change requests of v17.1.0

The CRs whose title or cover names this change, strong and likely matches only.

CR 3145 r2 (strong): Miscellaneous corrections for NR SL Relay

Fields (4)

Field	Description
rrc-TransactionIdentifier RRC-TransactionIdentifier
criticalExtensions CHOICE {
rrcReestablishment RRCReestablishment-IEs
criticalExtensionsFuture SEQUENCE {}

Fields of RRCReestablishment-IEs (3)

Field	Description
nextHopChainingCount NextHopChainingCount
lateNonCriticalExtension OCTET STRING · OPTIONAL
nonCriticalExtension RRCReestablishment-v1700-IEs · OPTIONAL

Fields of RRCReestablishment-v1700-IEs (2)

Field	Description
sl-L2RemoteUE-Config-r17 SetupRelease {SL-L2RemoteUE-Config-r17} · OPTIONAL Cond L2RemoteUE since v17.1.0	Contains dedicated configurations used for single hop or multi hop L2 U2N relay related operation. The network configures only the SRAP configuration for local UE ID.
nonCriticalExtension SEQUENCE {} · OPTIONAL since v17.0.0

Used by (1)

DL-DCCH-MessageType