3GPP TS 38.331 V18.0.0 (2023-12)

Technical Specification




3rd Generation Partnership Project;

Technical Specification Group Radio Access Network;

NR;

Radio Resource Control (RRC) protocol specification

(Release 18)




The present document has been developed within the 3rd Generation Partnership Project (3GPP TM) and may be further elaborated for the purposes of 3GPP.

The present document has not been subject to any approval process by the 3GPP Organizational Partners and shall not be implemented.

This Specification is provided for future development work within 3GPP only. The Organizational Partners accept no liability for any use of this Specification.

Specifications and Reports for implementation of the 3GPP TM system should be obtained via the 3GPP Organizational Partners' Publications Offices.

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The copyright and the foregoing restriction extend to reproduction in all media.


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Contents

Foreword

1 Scope

2 References

3 Definitions, symbols and abbreviations

3.1 Definitions

3.2 Abbreviations

4 General

4.1 Introduction

4.2 Architecture

4.2.1 UE states and state transitions including inter RAT

4.2.2 Signalling radio bearers

4.3 Services

4.3.1 Services provided to upper layers

4.3.2 Services expected from lower layers

4.4 Functions

5 Procedures

5.1 General

5.1.1 Introduction

5.1.2 General requirements

5.1.3 Requirements for UE in MR-DC

5.2 System information

5.2.1 Introduction

5.2.2 System information acquisition

5.2.2.1 General UE requirements

5.2.2.2 SIB validity and need to (re)-acquire SIB

5.2.2.2.1 SIB validity

5.2.2.2.2 SI change indication and PWS notification

5.2.2.3 Acquisition of System Information

5.2.2.3.1 Acquisition of MIB and SIB1

5.2.2.3.2 Acquisition of an SI message

5.2.2.3.3 Request for on demand system information

5.2.2.3.3a Request for on demand positioning system information

5.2.2.3.4 Actions related to transmission of RRCSystemInfoRequest message

5.2.2.3.5 Acquisition of SIB(s) or posSIB(s) in RRC_CONNECTED

5.2.2.3.6 Actions related to transmission of DedicatedSIBRequest message

5.2.2.4 Actions upon receipt of System Information

5.2.2.4.1 Actions upon reception of the MIB

5.2.2.4.2 Actions upon reception of the SIB1

5.2.2.4.3 Actions upon reception of SIB2

5.2.2.4.4 Actions upon reception of SIB3

5.2.2.4.5 Actions upon reception of SIB4

5.2.2.4.6 Actions upon reception of SIB5

5.2.2.4.7 Actions upon reception of SIB6

5.2.2.4.8 Actions upon reception of SIB7

5.2.2.4.9 Actions upon reception of SIB8

5.2.2.4.10 Actions upon reception of SIB9

5.2.2.4.11 Actions upon reception of SIB10

5.2.2.4.12 Actions upon reception of SIB11

5.2.2.4.13 Actions upon reception of SIB12

5.2.2.4.14 Actions upon reception of SIB13

5.2.2.4.15 Actions upon reception of SIB14

5.2.2.4.16 Actions upon reception of SIBpos

5.2.2.4.17 Actions upon reception of SIB15

5.2.2.4.18 Actions upon reception of SIB16

5.2.2.4.19 Actions upon reception of SIB17

5.2.2.4.20 Actions upon reception of SIB18

5.2.2.4.21 Actions upon reception of SIB19

5.2.2.4.22 Actions upon reception of SIB20

5.2.2.4.23 Actions upon reception of SIB21

5.2.2.4.24 Actions upon reception of SIB22

5.2.2.4.26 Actions upon reception of SIB24

5.2.2.4.27 Actions upon reception of SIB25

5.2.2.5 Essential system information missing

5.2.2.6 T430 expiry

5.3 Connection control

5.3.1 Introduction

5.3.1.1 RRC connection control

5.3.1.2 AS Security

5.3.2 Paging

5.3.2.1 General

5.3.2.2 Initiation

5.3.2.3 Reception of the Paging message by the UE or PagingRecord by the L2 U2N Remote UE

5.3.3 RRC connection establishment

5.3.3.1 General

5.3.3.1a Conditions for establishing RRC Connection for NR sidelink communication/discovery/V2X sidelink communication

5.3.3.1b Conditions for establishing RRC Connection for NR sidelink Positioning

5.3.3.2 Initiation

5.3.3.3 Actions related to transmission of RRCSetupRequest message

5.3.3.4 Reception of the RRCSetup by the UE

5.3.3.5 Reception of the RRCReject by the UE

5.3.3.6 Cell re-selection or cell selection or relay (re)selection while T390, T300 or T302 is running (UE in RRC_IDLE)

5.3.3.7 T300 expiry

5.3.3.8 Abortion of RRC connection establishment

5.3.4 Initial AS security activation

5.3.4.1 General

5.3.4.2 Initiation

5.3.4.3 Reception of the SecurityModeCommand by the UE

5.3.5 RRC reconfiguration

5.3.5.1 General

5.3.5.2 Initiation

5.3.5.3 Reception of an RRCReconfiguration by the UE

5.3.5.4 Secondary cell group release

5.3.5.5 Cell Group configuration

5.3.5.5.1 General

5.3.5.5.2 Reconfiguration with sync

5.3.5.5.3 RLC bearer release

5.3.5.5.4 RLC bearer addition/modification

5.3.5.5.5 MAC entity configuration

5.3.5.5.6 RLF Timers & Constants configuration

5.3.5.5.7 SpCell Configuration

5.3.5.5.8 SCell Release

5.3.5.5.9 SCell Addition/Modification

5.3.5.5.10 BH RLC channel release

5.3.5.5.11 BH RLC channel addition/modification

5.3.5.5.12 Uu Relay RLC channel release

5.3.5.5.13 Uu Relay RLC channel addition/modification

5.3.5.5.14 NCR-Fwd configuration

5.3.5.6 Radio Bearer configuration

5.3.5.6.1 General

5.3.5.6.2 SRB release

5.3.5.6.3 SRB addition/modification

5.3.5.6.4 DRB release

5.3.5.6.5 DRB addition/modification

5.3.5.6.6 Multicast MRB release

5.3.5.6.7 Multicast MRB addition/modification

5.3.5.7 AS Security key update

5.3.5.8 Reconfiguration failure

5.3.5.8.1 Void

5.3.5.8.2 Inability to comply with RRCReconfiguration

5.3.5.8.3 T304 expiry (Reconfiguration with sync Failure) or T420 expiry (Path switch failure)

5.3.5.9 Other configuration

5.3.5.9a MUSIM gap configuration

5.3.5.10 MR-DC release

5.3.5.11 Full configuration

5.3.5.12 BAP configuration

5.3.5.12a IAB Other Configuration

5.3.5.12a.1 IP address management

5.3.5.12a.1.1 IP Address Release

5.3.5.12a.1.2 IP Address Addition/Modification

5.3.5.13 Conditional Reconfiguration

5.3.5.13.1 General

5.3.5.13.2 Conditional reconfiguration removal

5.3.5.13.3 Conditional reconfiguration addition/modification

5.3.5.13.4 Conditional reconfiguration evaluation

5.3.5.13.4a Conditional reconfiguration evaluation of SN initiated inter-SN CPC for EN-DC

5.3.5.13.5 Conditional reconfiguration execution

5.3.5.13.6 Subsequent CPAC reference configuration addition/removal

5.3.5.13.7 sk-Counter configuration addition/modification/removal

5.3.5.13.8 Subsequent CPAC execution

5.3.5.13a SCG activation

5.3.5.13b SCG deactivation

5.3.5.13b1 SCG activation without SN message

5.3.5.13c FR2 UL gap configuration

5.3.5.13d Application layer measurement configuration

5.3.5.14 Sidelink dedicated configuration

5.3.5.15 L2 U2N or U2U Relay UE configuration

5.3.5.15.1 General

5.3.5.15.2 L2 U2N or U2U Remote UE Release

5.3.5.15.3 L2 U2N or U2U Remote UE Addition/Modification

5.3.5.16 L2 U2N or U2U Remote UE configuration

5.3.5.16.1 L2 U2U Relay UE Release

5.3.5.16.2 L2 U2U Relay UE Addition/Modification

5.3.5.17 MP configuration

5.3.5.17.1 Introduction

5.3.5.17.2 Configuration of SL indirect path

5.3.5.17.2.1 General

5.3.5.17.2.2 SL indirect path specific configuration

5.3.5.17.2.3 T421 expiry (Indirect path addition/change failure)

5.3.5.17.3 Configuration of N3C indirect path

5.3.5.17.3.1 General

5.3.5.17.3.2 N3C remote UE configuration

5.3.5.17.3.3 N3C relay UE configuration

5.3.5.17.3.4 Bearer mapping management on N3C indirect path

5.3.5.17.3.4.1 Bearer mapping release

5.3.5.17.3.4.2 Bearer mapping addition and modification

5.3.5.18 LTM configuration and execution

5.3.5.18.1 LTM configuration

5.3.5.18.2 LTM candidate configuration release

5.3.5.18.3 LTM candidate configuration addition/modification

5.3.5.18.4 LTM CSI resource configuration release

5.3.5.18.5 LTM CSI resource configuration addition/modification

5.3.5.18.6 LTM cell switch execution

5.3.5.18.7 LTM configuration release

5.3.5.19 T348 expiry

5.3.6 Counter check

5.3.6.1 General

5.3.6.2 Initiation

5.3.6.3 Reception of the CounterCheck message by the UE

5.3.7 RRC connection re-establishment

5.3.7.1 General

5.3.7.2 Initiation

5.3.7.3 Actions following cell selection while T311 is running

5.3.7.3a Actions following relay selection while T311 is running

5.3.7.4 Actions related to transmission of RRCReestablishmentRequest message

5.3.7.5 Reception of the RRCReestablishment by the UE

5.3.7.6 T311 expiry

5.3.7.7 T301 expiry or selected cell/L2 U2N Relay UE no longer suitable

5.3.7.8 Reception of the RRCSetup by the UE

5.3.8 RRC connection release

5.3.8.1 General

5.3.8.2 Initiation

5.3.8.3 Reception of the RRCRelease by the UE

5.3.8.4 T320 expiry

5.3.8.5 UE actions upon the expiry of DataInactivityTimer

5.3.8.6 T346g expiry

5.3.9 RRC connection release requested by upper layers

5.3.9.1 General

5.3.9.2 Initiation

5.3.10 Radio link failure related actions

5.3.10.1 Detection of physical layer problems in RRC_CONNECTED

5.3.10.2 Recovery of physical layer problems

5.3.10.3 Detection of radio link failure

5.3.10.4 RLF cause determination

5.3.10.5 RLF report content determination

5.3.11 UE actions upon going to RRC_IDLE

5.3.12 UE actions upon PUCCH/SRS release request

5.3.13 RRC connection resume

5.3.13.1 General

5.3.13.1a Conditions for resuming RRC Connection for NR sidelink communication/discovery/V2X sidelink communication

5.3.13.1b Conditions for initiating SDT

5.3.13.1c Conditions for resuming RRC Connection for NR sidelink Positioning

5.3.13.1d RRC connection resume for multicast reception

5.3.13.2 Initiation

5.3.13.3 Actions related to transmission of RRCResumeRequest or RRCResumeRequest1 message

5.3.13.4 Reception of the RRCResume by the UE

5.3.13.5 Handling of failure to resume RRC Connection

5.3.13.6 Cell re-selection or cell selection or L2 U2N relay (re)selection while T390, T319 or T302 is running or SDT procedure is ongoing (UE in RRC_INACTIVE) or SRS transmission in RRC_INACTIVE is configured

5.3.13.7 Reception of the RRCSetup by the UE

5.3.13.8 RNA update

5.3.13.9 Reception of the RRCRelease by the UE

5.3.13.10 Reception of the RRCReject by the UE

5.3.13.11 Inability to comply with RRCResume

5.3.13.12 Inter RAT cell reselection

5.3.14 Unified Access Control

5.3.14.1 General

5.3.14.2 Initiation

5.3.14.3 Void

5.3.14.4 T302, T390 expiry or stop (Barring alleviation)

5.3.14.5 Access barring check

5.3.15 RRC connection reject

5.3.15.1 Initiation

5.3.15.2 Reception of the RRCReject by the UE

5.4 Inter-RAT mobility

5.4.1 Introduction

5.4.2 Handover to NR

5.4.2.1 General

5.4.2.2 Initiation

5.4.2.3 Reception of the RRCReconfiguration by the UE

5.4.3 Mobility from NR

5.4.3.1 General

5.4.3.2 Initiation

5.4.3.3 Reception of the MobilityFromNRCommand by the UE

5.4.3.4 Successful completion of the mobility from NR

5.4.3.5 Mobility from NR failure

5.5 Measurements

5.5.1 Introduction

5.5.2 Measurement configuration

5.5.2.1 General

5.5.2.2 Measurement identity removal

5.5.2.3 Measurement identity addition/modification

5.5.2.4 Measurement object removal

5.5.2.5 Measurement object addition/modification

5.5.2.6 Reporting configuration removal

5.5.2.7 Reporting configuration addition/modification

5.5.2.8 Quantity configuration

5.5.2.9 Measurement gap configuration

5.5.2.10 Reference signal measurement timing configuration

5.5.2.10a RSSI measurement timing configuration

5.5.2.11 Measurement gap sharing configuration

5.5.2.12 Effective measurement window configuration

5.5.3 Performing measurements

5.5.3.1 General

5.5.3.2 Layer 3 filtering

5.5.3.3 Derivation of cell measurement results

5.5.3.3a Derivation of layer 3 beam filtered measurement

5.5.3.4 Derivation of L2 U2N Relay UE measurement results

5.5.4 Measurement report triggering

5.5.4.1 General

5.5.4.2 Event A1 (Serving becomes better than threshold)

5.5.4.3 Event A2 (Serving becomes worse than threshold)

5.5.4.4 Event A3 (Neighbour becomes offset better than SpCell)

5.5.4.5 Event A4 (Neighbour becomes better than threshold)

5.5.4.6 Event A5 (SpCell becomes worse than threshold1 and neighbour becomes better than threshold2)

5.5.4.7 Event A6 (Neighbour becomes offset better than SCell)

5.5.4.8 Event B1 (Inter RAT neighbour becomes better than threshold)

5.5.4.9 Event B2 (PCell becomes worse than threshold1 and inter RAT neighbour becomes better than threshold2)

5.5.4.10 Event I1 (Interference becomes higher than threshold)

5.5.4.11 Event C1 (The NR sidelink channel busy ratio is above a threshold)

5.5.4.12 Event C2 (The NR sidelink channel busy ratio is below a threshold)

5.5.4.13 Void

5.5.4.14 Void

5.5.4.15 Event D1 (Distance between UE and referenceLocation1 is above threshold1 and distance between UE and referenceLocation2 is below threshold2)

5.5.4.15a CondEvent D2 (Distance between UE and a moving referenceLocation1 is above threshold1 and distance between UE and a moving referenceLocation2 is below threshold2)

5.5.4.16 CondEvent T1 (Time measured at UE is within a duration from threshold)

5.5.4.17 Event X1 (Serving L2 U2N Relay UE becomes worse than threshold1 and NR Cell becomes better than threshold2)

5.5.4.18 Event X2 (Serving L2 U2N Relay UE becomes worse than threshold)

5.5.4.19 Event Y1 (PCell becomes worse than threshold1 and candidate L2 U2N Relay UE becomes better than threshold2)

5.5.4.20 Event Y2 (Candidate L2 U2N Relay UE becomes better than threshold)

5.5.4.20b Event Z1 (Serving L2 U2N Relay UE becomes worse than threshold1 and Candidate L2 U2N Relay UE becomes better than threshold2)

5.5.4.21 Event H1 (The Aerial UE altitude becomes higher than a threshold)

5.5.4.22 Event H2 (The Aerial UE altitude becomes lower than a threshold)

5.5.4.23 Event A3H1 (Neighbour becomes offset better than SpCell and the Aerial UE altitude becomes higher than a threshold)

5.5.4.24 Event A3H2 (Neighbour becomes offset better than SpCell and the Aerial UE altitude becomes lower than a threshold)

5.5.4.25 Event A4H1 (Neighbour becomes better than threshold1 and the Aerial UE altitude becomes higher than a threshold2)

5.5.4.26 Event A4H2 (Neighbour becomes better than threshold1 and the Aerial UE altitude becomes lower than a threshold2)

5.5.4.27 Event A5H1 (SpCell becomes worse than threshold1 and neighbour becomes better than threshold2 and the Aerial UE altitude becomes higher than a threshold3)

5.5.4.28 Event A5H2 (SpCell becomes worse than threshold1 and neighbour becomes better than threshold2 and the Aerial UE altitude becomes lower than a threshold3)

5.5.5 Measurement reporting

5.5.5.1 General

5.5.5.2 Reporting of beam measurement information

5.5.5.3 Sorting of cell measurement results

5.5.6 Location measurement indication

5.5.6.1 General

5.5.6.2 Initiation

5.5.6.3 Actions related to transmission of LocationMeasurementIndication message

5.5a Logged Measurements

5.5a.1 Logged Measurement Configuration

5.5a.1.1 General

5.5a.1.2 Initiation

5.5a.1.3 Reception of the LoggedMeasurementConfiguration by the UE

5.5a.1.4 T330 expiry

5.5a.2 Release of Logged Measurement Configuration

5.5a.2.1 General

5.5a.2.2 Initiation

5.5a.3 Measurements logging

5.5a.3.1 General

5.5a.3.2 Initiation

5.5b Application Layer Measurements in RRC_IDLE/RRC_INACTIVE

5.5b.1 Area handling and storing of Application Layer Measurement reports in RRC_IDLE/RRC_INACTIVE

5.5b.1.1 General

5.5b.1.2 Initiation

5.6 UE capabilities

5.6.1 UE capability transfer

5.6.1.1 General

5.6.1.2 Initiation

5.6.1.3 Reception of the UECapabilityEnquiry by the UE

5.6.1.4 Setting band combinations, feature set combinations and feature sets supported by the UE

5.6.1.5 Void

5.7 Other

5.7.1 DL information transfer

5.7.1.1 General

5.7.1.2 Initiation

5.7.1.3 Reception of the DLInformationTransfer by the UE

5.7.1a DL information transfer for MR-DC

5.7.1a.1 General

5.7.1a.2 Initiation

5.7.1a.3 Actions related to reception of DLInformationTransferMRDC message

5.7.2 UL information transfer

5.7.2.1 General

5.7.2.2 Initiation

5.7.2.3 Actions related to transmission of ULInformationTransfer message

5.7.2.4 Failure to deliver ULInformationTransfer message

5.7.2a UL information transfer for MR-DC

5.7.2a.1 General

5.7.2a.2 Initiation

5.7.2a.3 Actions related to transmission of ULInformationTransferMRDC message

5.7.2b UL transfer of IRAT information

5.7.2b.1 General

5.7.2b.2 Initiation

5.7.2b.3 Actions related to transmission of ULInformationTransferIRAT message

5.7.3 SCG failure information

5.7.3.1 General

5.7.3.2 Initiation

5.7.3.3 Failure type determination for (NG)EN-DC

5.7.3.4 Setting the contents of MeasResultSCG-Failure

5.7.3.5 Actions related to transmission of SCGFailureInformation message

5.7.3a EUTRA SCG failure information

5.7.3a.1 General

5.7.3a.2 Initiation

5.7.3a.3 Actions related to transmission of SCGFailureInformationEUTRA message

5.7.3b MCG failure information

5.7.3b.1 General

5.7.3b.2 Initiation

5.7.3b.3 Failure type determination

5.7.3b.4 Actions related to transmission of MCGFailureInformation message

5.7.3b.5 T316 expiry

5.7.3c Indirect path failure information

5.7.3c.1 General

5.7.3c.2 Initiation

5.7.3c.3 Failure type determination

5.7.3c.4 Actions related to transmission of IndirectPathFailureInformation message

5.7.4 UE Assistance Information

5.7.4.1 General

5.7.4.2 Initiation

5.7.4.3 Actions related to transmission of UEAssistanceInformation message

5.7.4.3a Setting the contents of OverheatingAssistance IE

5.7.4.4 Relaxed measurement criterion for a stationary (e)RedCap UE

5.7.4a Void

5.7.5 Failure information

5.7.5.1 General

5.7.5.2 Initiation

5.7.5.3 Actions related to transmission of FailureInformation message

5.7.6 DL message segment transfer

5.7.6.1 General

5.7.6.2 Initiation

5.7.6.3 Reception of DLDedicatedMessageSegment by the UE

5.7.7 UL message segment transfer

5.7.7.1 General

5.7.7.2 Initiation

5.7.7.3 Actions related to transmission of ULDedicatedMessageSegment message

5.7.8 Idle/inactive Measurements

5.7.8.1 General

5.7.8.1a Measurement configuration

5.7.8.2 Void

5.7.8.2a Performing measurements

5.7.8.3 T331 expiry or stop

5.7.8.4 Cell re-selection or cell selection while T331 is running

5.7.9 Mobility history information

5.7.9.1 General

5.7.9.2 Initiation

5.7.9.3 Release of Mobility History Information

5.7.10 UE Information

5.7.10.1 General

5.7.10.2 Initiation

5.7.10.3 Reception of the UEInformationRequest message

5.7.10.4 Actions for the Random Access report determination

5.7.10.5 RA information determination

5.7.10.6 Actions for the successful handover report determination

5.7.10.7 Actions for the successful PSCell change or addition report determination

5.7.11 Void

5.7.12 IAB Other Information

5.7.12.1 General

5.7.12.2 Initiation

5.7.12.3 Actions related to transmission of IABOtherInformation message

5.7.13 RLM/BFD relaxation

5.7.13.1 Relaxed measurement criterion for low mobility

5.7.13.2 Relaxed measurement criterion for good serving cell quality

5.7.14 UE Positioning Assistance Information

5.7.14.1 General

5.7.14.2 Initiation

5.7.14.3 Actions related to transmission of UEPositioningAssistanceInfo message

5.7.15 Void

5.7.17 Derivation of pathloss reference for TA validation of SRS for Positioning transmission and CG-SDT in RRC_INACTIVE

5.7.18 Actions for SRS for Positioning transmission in RRC_INACTIVE in a Validity Area

5.7.19 Satellite switch with re-synchronization in RRC_CONNECTED

5.8 Sidelink

5.8.1 General

5.8.2 Conditions for NR sidelink communication/discovery/positioning operation

5.8.3 Sidelink UE information for NR sidelink communication/discovery/positioning

5.8.3.1 General

5.8.3.2 Initiation

5.8.3.3 Actions related to transmission of SidelinkUEInformationNR message

5.8.4 Void

5.8.5 Sidelink synchronisation information transmission for NR sidelink communication/discovery/positioning

5.8.5.1 General

5.8.5.2 Initiation

5.8.5.3 Transmission of SLSS

5.8.5a Sidelink synchronisation information transmission for V2X sidelink communication

5.8.5a.1 General

5.8.5a.2 Initiation

5.8.6 Sidelink synchronisation reference

5.8.6.1 General

5.8.6.2 Selection and reselection of synchronisation reference

5.8.6.3 Sidelink communication transmission reference cell selection

5.8.7 Sidelink communication reception

5.8.8 Sidelink communication transmission

5.8.9 Sidelink RRC procedure

5.8.9.1 Sidelink RRC reconfiguration

5.8.9.1.1 General

5.8.9.1.2 Actions related to transmission of RRCReconfigurationSidelink message

5.8.9.1.3 Reception of an RRCReconfigurationSidelink by the UE

5.8.9.1.4 Void

5.8.9.1.5 Void

5.8.9.1.6 Void

5.8.9.1.7 Void

5.8.9.1.8 Reception of an RRCReconfigurationFailureSidelink by the UE

5.8.9.1.9 Reception of an RRCReconfigurationCompleteSidelink by the UE

5.8.9.1a Sidelink radio bearer management

5.8.9.1a.1 Sidelink DRB release

5.8.9.1a.2 Sidelink DRB addition/modification

5.8.9.1a.3 Sidelink SRB release

5.8.9.1a.4 Sidelink SRB addition

5.8.9.1a.5 Additional Sidelink RLC Bearer release

5.8.9.1a.5.1 Additional Sidelink RLC Bearer release conditions

5.8.9.1a.5.2 Additional Sidelink RLC Bearer release operation

5.8.9.1a.6 Additional Sidelink RLC Bearer addition/modification

5.8.9.1a.6.1 Additional Sidelink RLC Bearer addition/modification conditions

5.8.9.1a.6.2 Additional Sidelink RLC Bearer addition/modification operation

5.8.9.1b Sidelink Carrier Configuration

5.8.9.1b.1 Sidelink Carrier Release

5.8.9.1b.2 Sidelink Carrier Addition/Modification

5.8.9.2 Sidelink UE capability transfer

5.8.9.2.1 General

5.8.9.2.2 Initiation

5.8.9.2.3 Actions related to transmission of the UECapabilityEnquirySidelink by the UE

5.8.9.2.4 Actions related to reception of the UECapabilityEnquirySidelink by the UE

5.8.9.3 Sidelink radio link failure related actions

5.8.9.4 Sidelink common control information

5.8.9.4.1 General

5.8.9.4.2 Actions related to reception of MasterInformationBlockSidelink message

5.8.9.4.3 Transmission of MasterInformationBlockSidelink message

5.8.9.5 Actions related to PC5-RRC connection release requested by upper layers

5.8.9.6 Sidelink UE assistance information

5.8.9.6.1 General

5.8.9.6.2 Initiation

5.8.9.6.3 Actions related to reception of UEAssistanceInformationSidelink message

5.8.9.7 PC5 Relay RLC channel management for L2 U2N or U2U relay

5.8.9.7.1 PC5 Relay RLC channel release

5.8.9.7.2 PC5 Relay RLC channel addition/modification

5.8.9.8 Remote UE information

5.8.9.8.1 General

5.8.9.8.2 Actions related to transmission of RemoteUEInformationSidelink message

5.8.9.8.3 Reception of RemoteUEInformationSidelink message by the L2 U2N Relay UE

5.8.9.9 Uu message transfer in sidelink

5.8.9.9.1 General

5.8.9.9.2 Actions related to transmission of UuMessageTransferSidelink message

5.8.9.9.3 Reception of the UuMessageTransferSidelink

5.8.9.10 Notification Message

5.8.9.10.1 General

5.8.9.10.2 Initiation

5.8.9.10.3 Actions related to transmission of NotificationMessageSidelink message

5.8.9.10.4 Actions related to reception of NotificationMessageSidelink message

5.8.9.11 Sidelink UE information

5.8.9.11.1 General

5.8.9.11.2 Actions related to transmission of the UEInformationRequestSidelink by the UE

5.8.9.11.3 Actions related to reception of the UEInformationRequestSidelink by the UE

5.8.10 Sidelink measurement

5.8.10.1 Introduction

5.8.10.2 Sidelink measurement configuration

5.8.10.2.1 General

5.8.10.2.2 Sidelink measurement identity removal

5.8.10.2.3 Sidelink measurement identity addition/modification

5.8.10.2.4 Sidelink measurement object removal

5.8.10.2.5 Sidelink measurement object addition/modification

5.8.10.2.6 Sidelink reporting configuration removal

5.8.10.2.7 Sidelink reporting configuration addition/modification

5.8.10.2.8 Sidelink quantity configuration

5.8.10.3 Performing NR sidelink measurements

5.8.10.3.1 General

5.8.10.3.2 Derivation of NR sidelink measurement results

5.8.10.4 Sidelink measurement report triggering

5.8.10.4.1 General

5.8.10.4.2 Event S1 (Serving becomes better than threshold)

5.8.10.4.3 Event S2 (Serving becomes worse than threshold)

5.8.10.5 Sidelink measurement reporting

5.8.10.5.1 General

5.8.11 Zone identity calculation

5.8.12 DFN derivation from GNSS

5.8.13 NR sidelink discovery

5.8.13.1 General

5.8.13.2 NR sidelink discovery monitoring

5.8.13.3 NR sidelink discovery transmission

5.8.14 NR sidelink U2N Relay UE operation

5.8.14.1 General

5.8.15 NR sidelink U2N Remote UE operation

5.8.15.1 General

5.8.15.2 NR Sidelink U2N Remote UE threshold conditions

5.8.15.3 Selection and reselection of NR sidelink U2N Relay UE

5.8.16 NR sidelink U2U Relay UE operation

5.8.16.1 General

5.8.16.2 NR sidelink U2U Relay UE threshold conditions

5.8.16.3 Neighbor UE(s) in proximity conditions

5.8.17 NR sidelink U2U Remote UE operation

5.8.17.1 General

5.8.17.2 NR Sidelink U2U Remote UE threshold conditions

5.8.17.3 Conditions for Selection and reselection of NR sidelink U2U Relay UE

5.8.17.4 Actions related to selection and reselection of NR sidelink U2U Relay UE

5.8.18 NR sidelink positioning

5.8.18.1 General

5.8.18.2 NR sidelink positioning reception

5.8.18.3 NR sidelink positioning transmission

5.9 MBS Broadcast

5.9.1 Introduction

5.9.1.1 General

5.9.1.2 MCCH scheduling

5.9.1.3 MCCH information validity and notification of changes

5.9.2 MCCH information acquisition

5.9.2.1 General

5.9.2.2 Initiation

5.9.2.3 MCCH information acquisition by the UE

5.9.2.4 Actions upon reception of the MBSBroadcastConfiguration message

5.9.3 Broadcast MRB configuration

5.9.3.1 General

5.9.3.2 Initiation

5.9.3.3 Broadcast MRB establishment

5.9.3.4 Broadcast MRB release

5.9.4 MBS Interest Indication

5.9.4.1 General

5.9.4.2 Initiation

5.9.4.3 MBS frequencies of interest determination

5.9.4.4 MBS services of interest determination

5.9.4.5 Setting of the contents of MBS Interest Indication

5.10 MBS multicast reception in RRC_INACTIVE

5.10.1 Introduction

5.10.1.1 General

5.10.1.2 Multicast MCCH scheduling

5.10.1.3 Multicast MCCH information validity and notification of changes

5.10.2 Multicast MCCH information acquisition

5.10.2.1 General

5.10.2.2 Initiation

5.10.2.3 Multicast MCCH information acquisition by the UE

5.10.2.4 Actions upon reception of the MBSMulticastConfiguration message

5.10.3 MRB configuration

5.10.3.1 General

5.10.3.2 Multicast MRB establishment

5.10.3.3 Multicast MRB release

6 Protocol data units, formats and parameters (ASN.1)

6.1 General

6.1.1 Introduction

6.1.2 Need codes and conditions for optional fields

6.1.3 General rules

6.2 RRC messages

6.2.1 General message structure

– NR-RRC-Definitions

– BCCH-BCH-Message

– BCCH-DL-SCH-Message

– DL-CCCH-Message

– DL-DCCH-Message

– MCCH-Message

– MulticastMCCH-Message

– PCCH-Message

– UL-CCCH-Message

– UL-CCCH1-Message

– UL-DCCH-Message

6.2.2 Message definitions

– CounterCheck

– CounterCheckResponse

– DedicatedSIBRequest

– DLDedicatedMessageSegment

– DLInformationTransfer

– DLInformationTransferMRDC

– FailureInformation

– IABOtherInformation

– IndirectPathFailureInformation

– LocationMeasurementIndication

– LoggedMeasurementConfiguration

– MBSBroadcastConfiguration

– MBSInterestIndication

– MBSMulticastConfiguration

– MCGFailureInformation

– MeasurementReport

– MeasurementReportAppLayer

– MIB

– MobilityFromNRCommand

– Paging

– RRCReestablishment

– RRCReestablishmentComplete

– RRCReestablishmentRequest

– RRCReconfiguration

– RRCReconfigurationComplete

– RRCReject

– RRCRelease

– RRCResume

– RRCResumeComplete

– RRCResumeRequest

– RRCResumeRequest1

– RRCSetup

– RRCSetupComplete

– RRCSetupRequest

– RRCSystemInfoRequest

– SCGFailureInformation

– SCGFailureInformationEUTRA

– SecurityModeCommand

– SecurityModeComplete

– SecurityModeFailure

– SIB1

– SidelinkUEInformationNR

– SystemInformation

– UEAssistanceInformation

– UECapabilityEnquiry

– UECapabilityInformation

– UEInformationRequest

– UEInformationResponse

– UEPositioningAssistanceInfo

– ULDedicatedMessageSegment

– ULInformationTransfer

– ULInformationTransferIRAT

– ULInformationTransferMRDC

6.3 RRC information elements

6.3.0 Parameterized types

– SetupRelease

6.3.1 System information blocks

– SIB2

– SIB3

– SIB4

– SIB5

– SIB6

– SIB7

– SIB8

– SIB9

– SIB10

– SIB11

– SIB12

– SIB13

– SIB14

– SIB15

– SIB16

– SIB17

– SIB18

– SIB19

– SIB20

– SIB21

– SIB22

– SIB23

– SIB24

– SIB25

6.3.1a Positioning System information blocks

– PosSystemInformation-r16-IEs

– PosSI-SchedulingInfo

– SIBpos

6.3.2 Radio resource control information elements

– AdditionalSpectrumEmission

– AdvancedReceiver-MU-MIMO

– Alpha

– Altitude

– AMF-Identifier

– ARFCN-ValueEUTRA

– ARFCN-ValueNR

– ARFCN-ValueUTRA-FDD

– ATG-Config

– AvailabilityCombinationsPerCell

– AvailabilityIndicator

– BAP-RoutingID

– BeamFailureRecoveryConfig

– BeamFailureRecoveryRSConfig

– BetaOffsets

– BetaOffsetsCrossPri

– BH-LogicalChannelIdentity

– BH-LogicalChannelIdentity-Ext

– BH-RLC-ChannelConfig

– BH-RLC-ChannelID

– BSR-Config

– BWP

– BWP-Downlink

– BWP-DownlinkCommon

– BWP-DownlinkDedicated

– BWP-Id

– BWP-Uplink

– BWP-UplinkCommon

– BWP-UplinkDedicated

– CandidateBeamRS

– CandidateTCI-State

– CandidateTCI-UL-State

– CellAccessRelatedInfo

– CellAccessRelatedInfo-EUTRA-5GC

– CellAccessRelatedInfo-EUTRA-EPC

– CellDTXDRX-Config

– CellGroupConfig

– CellGroupId

– CellIdentity

– CellReselectionPriority

– CellReselectionSubPriority

– CFR-ConfigMulticast

– CGI-InfoEUTRA

– CGI-InfoEUTRALogging

– CGI-InfoNR

– CGI-Info-Logging

– CLI-RSSI-Range

– ClockQualityMetrics

– CodebookConfig

– CommonLocationInfo

– CondReconfigId

– CondReconfigToAddModList

– ConditionalReconfiguration

– ConfiguredGrantConfig

– ConfiguredGrantConfigIndex

– ConfiguredGrantConfigIndexMAC

– ConnEstFailureControl

– ControlResourceSet

– ControlResourceSetId

– ControlResourceSetZero

– CrossCarrierSchedulingConfig

– CSI-AperiodicTriggerStateList

– CSI-FrequencyOccupation

– CSI-IM-Resource

– CSI-IM-ResourceId

– CSI-IM-ResourceSet

– CSI-IM-ResourceSetId

– CSI-MeasConfig

– CSI-ReportConfig

– CSI-ReportConfigId

– CSI-ReportSubConfig

– CSI-ReportSubConfigId

– CSI-ReportSubConfigTriggerList

– CSI-ResourceConfig

– CSI-ResourceConfigId

– CSI-ResourcePeriodicityAndOffset

– CSI-RS-ResourceConfigMobility

– CSI-RS-ResourceMapping

– CSI-SemiPersistentOnPUSCH-TriggerStateList

– CSI-SSB-ResourceSet

– CSI-SSB-ResourceSetId

– DedicatedNAS-Message

– DL-PPW-PreConfig

– DMRS-BundlingPUCCH-Config

– DMRS-BundlingPUSCH-Config

– DMRS-DownlinkConfig

– DMRS-UplinkConfig

– DownlinkConfigCommon

– DownlinkConfigCommonSIB

– DownlinkPreemption

– DRB-Identity

– DRX-Config

– DRX-ConfigSecondaryGroup

– DRX-ConfigSL

– EarlyUL-SyncConfig

– EphemerisInfo

– EUTRA-C-RNTI

– FeatureCombination

– FeatureCombinationPreambles

– FilterCoefficient

– FreqBandIndicatorNR

– FreqPriorityListDedicatedSlicing

– FreqPriorityListSlicing

– FrequencyInfoDL

– FrequencyInfoDL-SIB

– FrequencyInfoUL

– FrequencyInfoUL-SIB

– GapPriority

– HighSpeedConfig

– Hysteresis

– HysteresisAltitude

– HysteresisLocation

– InvalidSymbolPattern

– I-RNTI-Value

– LBT-FailureRecoveryConfig

– LocationInfo

– LocationMeasurementInfo

– LogicalChannelConfig

– LogicalChannelIdentity

– LTE-NeighCellsCRS-AssistInfoList

– LTM-CandidateId

– LTM-Candidate

– LTM-Config

– LTM-CSI-ReportConfig

– LTM-CSI-ReportConfigId

– LTM-CSI-ResourceConfig

– LTM-CSI-ResourceConfigId

– MAC-CellGroupConfig

– MeasConfig

– MeasGapConfig

– MeasGapId

– MeasGapSharingConfig

– MeasId

– MeasIdleConfig

– MeasIdToAddModList

– MeasObjectCLI

– MeasObjectEUTRA

– MeasObjectId

– MeasObjectNR

– MeasObjectNR-SL

– MeasObjectRxTxDiff

– MeasObjectToAddModList

– MeasObjectUTRA-FDD

– MeasResultCellListSFTD-NR

– MeasResultCellListSFTD-EUTRA

– MeasResults

– MeasResult2EUTRA

– MeasResult2NR

– MeasResultIdleEUTRA

– MeasResultIdleNR

– MeasResultRxTxTimeDiff

– MeasResultSCG-Failure

– MeasResultsSL

– MeasSequence

– MeasTriggerQuantityEUTRA

– MeasWindowConfig

– MobilityStateParameters

– MRB-Identity

– MsgA-ConfigCommon

– MsgA-PUSCH-Config

– MultiFrequencyBandListNR

– MultiFrequencyBandListNR-SIB

– MUSIM-GapConfig

– MUSIM-GapId

– MUSIM-GapInfo

– N3C-IndirectPathConfigRelay

– N3C-IndirectPathAddChange

– NCR-AperiodicFwdConfig

– NCR-FwdConfig

– NCR-PeriodicityAndOffset

– NCR-PeriodicFwdResourceSet

– NCR-PeriodicFwdResourceSetId

– NCR-SemiPersistentFwdResourceSetId

– NeedForGapsConfigNR

– NeedForGapNCSG-ConfigEUTRA

– NeedForGapNCSG-ConfigNR

– NeedForGapNCSG-InfoEUTRA

– NeedForGapNCSG-InfoNR

– NeedForInterruptionInfoNR

– NextHopChainingCount

– NG-5G-S-TMSI

– NonCellDefiningSSB

– NPN-Identity

– NPN-IdentityInfoList

– NR-DL-PRS-PDC-Info

– NR-NS-PmaxList

– NSAG-ID

– NSAG-IdentityInfo

– NTN-Config

– NZP-CSI-RS-Resource

– NZP-CSI-RS-ResourceId

– NZP-CSI-RS-ResourceSet

– NZP-CSI-RS-ResourceSetId

– P-Max

– PathlossReferenceRS

– PathlossReferenceRS-Id

– PCI-ARFCN-EUTRA

– PCI-ARFCN-NR

– PCI-List

– PCI-Range

– PCI-RangeElement

– PCI-RangeIndex

– PCI-RangeIndexList

– PDCCH-Config

– PDCCH-ConfigCommon

– PDCCH-ConfigSIB1

– PDCCH-ServingCellConfig

– PDCP-Config

– PDSCH-Config

– PDSCH-ConfigCommon

– PDSCH-ServingCellConfig

– PDSCH-TimeDomainResourceAllocationList

– PDU-SessionID

– PHR-Config

– PhysCellId

– PhysicalCellGroupConfig

– PLMN-Identity

– PLMN-IdentityInfoList

– PLMN-IdentityList2

– PRB-Id

– PTRS-DownlinkConfig

– PTRS-UplinkConfig

– PUCCH-Config

– PUCCH-ConfigCommon

– PUCCH-ConfigurationList

– PUCCH-CSI-Resource

– PUCCH-PathlossReferenceRS-Id

– PUCCH-PowerControl

– PUCCH-SpatialRelationInfo

– PUCCH-SpatialRelationInfo-Id

– PUCCH-TPC-CommandConfig

– PUSCH-Config

– PUSCH-ConfigCommon

– PUSCH-PowerControl

– PUSCH-ServingCellConfig

– PUSCH-TimeDomainResourceAllocationList

– PUSCH-TPC-CommandConfig

– Q-OffsetRange

– Q-QualMin

– Q-RxLevMin

– QuantityConfig

– RACH-ConfigCommon

– RACH-ConfigCommonTwoStepRA

– RACH-ConfigDedicated

– RACH-ConfigGeneric

– RACH-ConfigGenericTwoStepRA

– RACH-ConfigTwoTA

– RA-Prioritization

– RA-PrioritizationForSlicing

– RadioBearerConfig

– RadioLinkMonitoringConfig

– RadioLinkMonitoringRS-Id

– RAN-AreaCode

– RateMatchPattern

– RateMatchPatternId

– RateMatchPatternLTE-CRS

– ReferenceConfiguration

– ReferenceLocation

– ReferenceTimeInfo

– RejectWaitTime

– RepetitionSchemeConfig

– ReportConfigId

– ReportConfigInterRAT

– ReportConfigNR

– ReportConfigNR-SL

– ReportConfigToAddModList

– ReportInterval

– ReselectionThreshold

– ReselectionThresholdQ

– ResumeCause

– RLC-BearerConfig

– RLC-Config

– RLF-TimersAndConstants

– RNTI-Value

– RSRP-Range

– RSRQ-Range

– RSSI-Range

– RxTxTimeDiff

– SCellActivationRS-Config

– SCellActivationRS-ConfigId

– SCellIndex

– SchedulingRequestConfig

– SchedulingRequestId

– SchedulingRequestResourceConfig

– SchedulingRequestResourceId

– ScramblingId

– SCS-SpecificCarrier

– SDAP-Config

– SearchSpace

– SearchSpaceId

– SearchSpaceZero

– SecurityAlgorithmConfig

– SelectedPSCellForCHO-WithSCG

– SemiStaticChannelAccessConfig

– SemiStaticChannelAccessConfigUE

– Sensor-LocationInfo

– ServingCellAndBWP-Id

– ServCellIndex

– ServingCellConfig

– ServingCellConfigCommon

– ServingCellConfigCommonSIB

– ShortI-RNTI-Value

– ShortMAC-I

– SINR-Range

– SI-RequestConfig

– SI-RequestConfigRepetition

– SI-SchedulingInfo

– SK-Counter

– SlotFormatCombinationsPerCell

– SlotFormatIndicator

– S-NSSAI

– SpeedStateScaleFactors

– SPS-Config

– SPS-ConfigIndex

– SPS-PUCCH-AN

– SPS-PUCCH-AN-List

– SRB-Identity

– SRS-CarrierSwitching

– SRS-Config

– SRS-PosTx-Hopping

– SRS-PosResourceSetLinkedForAggBW

– SRS-RSRP-Range

– SRS-TPC-CommandConfig

– SSB-Index

– SSB-MTC

– SSB-PositionQCL-Relation

– SSB-ToMeasure

– SS-RSSI-Measurement

– SubcarrierSpacing

– TAG-Config

– TAR-Config

– TCI-ActivatedConfig

– TCI-State

– TCI-StateId

– TCI-UL-State

– TCI-UL-StateId

– TDD-UL-DL-ConfigCommon

– TDD-UL-DL-ConfigDedicated

– TrackingAreaCode

– T-Reselection

– TimeAlignmentTimer

– TimeToTrigger

– TN-AreaId

– UAC-BarringInfoSetIndex

– UAC-BarringInfoSetList

– UAC-BarringPerCatList

– UAC-BarringPerPLMN-List

– UAV-Config

– UE-TimersAndConstants

– UE-TimersAndConstantsRemoteUE

– UL-DelayValueConfig

– UL-ExcessDelayConfig

– UL-GapFR2-Config

– UplinkCancellation

– UplinkConfigCommon

– UplinkConfigCommonSIB

– Uplink-PowerControl

– Uu-RelayRLC-ChannelConfig

– Uu-RelayRLC-ChannelID

– UplinkTxDirectCurrentList

– UplinkTxDirectCurrentMoreCarrierList

– UplinkTxDirectCurrentTwoCarrierList

– ZP-CSI-RS-Resource

– ZP-CSI-RS-ResourceSet

– ZP-CSI-RS-ResourceSetId

6.3.3 UE capability information elements

– AccessStratumRelease

– AerialParameters

– AppLayerMeasParameters

– BandCombinationList

– BandCombinationListSidelinkEUTRA-NR

– BandCombinationListSL-Discovery

– CA-BandwidthClassEUTRA

– CA-BandwidthClassNR

– CA-ParametersEUTRA

– CA-ParametersNR

– CA-ParametersNRDC

– CarrierAggregationVariant

– CodebookParameters

– ERedCapParameters

– FeatureSetCombination

– FeatureSetCombinationId

– FeatureSetDownlink

– FeatureSetDownlinkId

– FeatureSetDownlinkPerCC

– FeatureSetDownlinkPerCC-Id

– FeatureSetEUTRA-DownlinkId

– FeatureSetEUTRA-UplinkId

– FeatureSets

– FeatureSetUplink

– FeatureSetUplinkId

– FeatureSetUplinkPerCC

– FeatureSetUplinkPerCC-Id

– FreqBandIndicatorEUTRA

– FreqBandList

– FreqSeparationClass

– FreqSeparationClassDL-Only

– FR2-2-AccessParamsPerBand

– HighSpeedParameters

– IMS-Parameters

– InterRAT-Parameters

– MAC-Parameters

– MeasAndMobParameters

– MeasAndMobParametersMRDC

– MIMO-Layers

– MIMO-ParametersPerBand

– ModulationOrder

– MRDC-Parameters

– NCR-Parameters

– NRDC-Parameters

– NTN-Parameters

– OLPC-SRS-Pos

– PDCP-Parameters

– PDCP-ParametersMRDC

– Phy-Parameters

– Phy-ParametersMRDC

– Phy-ParametersSharedSpectrumChAccess

– PosSRS-RRC-Inactive-OutsideInitialUL-BWP

– PowSav-Parameters

– ProcessingParameters

– PRS-ProcessingCapabilityOutsideMGinPPWperType

– RAT-Type

– RedCapParameters

– RF-Parameters

– RF-ParametersMRDC

– RLC-Parameters

– SDAP-Parameters

– SharedSpectrumChAccessParamsPerBand

– SidelinkParameters

– SimultaneousRxTxPerBandPair

– SON-Parameters

– SpatialRelationsSRS-Pos

– SRS-AllPosResourcesRRC-Inactive

– SRS-SwitchingTimeNR

– SRS-SwitchingTimeEUTRA

– SupportedBandwidth

– UE-BasedPerfMeas-Parameters

– UE-CapabilityRAT-ContainerList

– UE-CapabilityRAT-RequestList

– UE-CapabilityRequestFilterCommon

– UE-CapabilityRequestFilterNR

– UE-MRDC-Capability

– UE-NR-Capability

– UE-RadioPagingInfo

6.3.4 Other information elements

– AbsoluteTimeInfo

– AppLayerIdleInactiveConfig

– AppLayerMeasConfig

– AreaConfiguration

– BT-NameList

– DedicatedInfoF1c

– EUTRA-AllowedMeasBandwidth

– EUTRA-MBSFN-SubframeConfigList

– EUTRA-MultiBandInfoList

– EUTRA-MultiBandInfoListAerial

– EUTRA-NS-PmaxList

– EUTRA-PhysCellId

– EUTRA-PhysCellIdRange

– EUTRA-PresenceAntennaPort1

– EUTRA-Q-OffsetRange

– IAB-IP-Address

– IAB-IP-AddressIndex

– IAB-IP-Usage

– LoggingDuration

– LoggingInterval

– LogMeasResultListBT

– LogMeasResultListWLAN

– MeasConfigAppLayerId

– OtherConfig

– PhysCellIdUTRA-FDD

– RRC-TransactionIdentifier

– Sensor-NameList

– TraceReference

– UE-MeasurementsAvailable

– UTRA-FDD-Q-OffsetRange

– VisitedCellInfoList

– WLAN-NameList

6.3.5 Sidelink information elements

– SL-BWP-Config

– SL-BWP-ConfigCommon

– SL-BWP-DiscPoolConfig

– SL-BWP-DiscPoolConfigCommon

– SL-BWP-PoolConfig

– SL-BWP-PoolConfigCommon

– SL-BWP-PRS-PoolConfig

– SL-BWP-PRS-PoolConfigCommon

– SL-CBR-PriorityTxConfigList

– SL-CBR-CommonTxConfigList

– SL-CBR-CommonTxDedicated-SL-PRS-RP-List

– SL-ConfigDedicatedNR

– SL-ConfiguredGrantConfig

– SL-ConfiguredGrantConfigDedicated-SL-PRS-RP

– SL-DestinationIdentity

– SL-DRX-Config

– SL-DRX-ConfigGC-BC

– SL-DRX-ConfigUC

– SL-DRX-ConfigUC-SemiStatic

– SL-FreqConfig

– SL-FreqConfigCommon

– SL-FreqSelectionConfig

– SL-IndirectPathAddChange

– SL-InterUE-CoordinationConfig

– SL-LBT-FailureRecoveryConfig

– SL-LogicalChannelConfig

– SL-L2RelayUE-Config

– SL-L2RemoteUE-Config

– SL-MeasConfigCommon

– SL-MeasConfigInfo

– SL-MeasIdList

– SL-MeasObjectList

– SL-PagingIdentityRemoteUE

– SL-PBPS-CPS-Config

– SL-PDCP-Config

– SL-PRS-ResourcePool

– SL-PSSCH-TxConfigList

– SL-QoS-FlowIdentity

– SL-QoS-Profile

– SL-QuantityConfig

– SL-RadioBearerConfig

– SL-RBSetConfig

– SL-RelayUE-ConfigU2U

– SL-RemoteUE-Config

– SL-RemoteUE-ConfigU2U

– SL-ReportConfigList

– SL-ResourcePool

– SL-RLC-BearerConfig

– SL-RLC-BearerConfigIndex

– SL-RLC-ChannelConfig

– SL-RLC-ChannelID

– SL-RLC-Config

– SL-ScheduledConfig

– SL-SDAP-Config

– SL-ServingCellInfo

– SL-SourceIdentity

– SL-SRAP-Config

– SL-SRAP-ConfigU2U

– SL-SyncConfig

– SL-Thres-RSRP-List

– SL-TxPower

– SL-TypeTxSync

– SL-UE-SelectedConfig

– SL-ZoneConfig

– SLRB-Uu-ConfigIndex

6.3.6 MBS information elements

– CarrierFreqListMBS

– CFR-ConfigMCCH-MTCH

– DRX-ConfigPTM

– MBS-NeighbourCellList

– MBS-NonServingInfoList

– MBS-ServiceList

– MBS-SessionInfoList

– MBS-SessionInfoListMulticast

– MTCH-SSB-MappingWindowList

– PDSCH-ConfigBroadcast

– TMGI

6.4 RRC multiplicity and type constraint values

– Multiplicity and type constraint definitions

– End of NR-RRC-Definitions

6.5 Short Message

6.6 PC5 RRC messages

6.6.1 General message structure

– PC5-RRC-Definitions

– SBCCH-SL-BCH-Message

– SCCH-Message

– MasterInformationBlockSidelink

– MeasurementReportSidelink

– NotificationMessageSidelink

– RemoteUEInformationSidelink

– RRCReconfigurationSidelink

– RRCReconfigurationCompleteSidelink

– RRCReconfigurationFailureSidelink

– UEAssistanceInformationSidelink

– UECapabilityEnquirySidelink

– UECapabilityInformationSidelink

– UEInformationRequestSidelink

– UEInformationResponseSidelink

– UuMessageTransferSidelink

– End of PC5-RRC-Definitions

7 Variables and constants

7.1 Timers

7.1.1 Timers (Informative)

7.1.2 Timer handling

7.2 Counters

7.3 Constants

7.4 UE variables

– NR-UE-Variables

– VarAppLayerIdleConfig

– VarAppLayerPLMN-LisConfig

– VarConditionalReconfig

– VarConnEstFailReport

– VarConnEstFailReportList

– VarEventID

– VarGnbID

– VarLogMeasConfig

– VarLogMeasReport

– VarLTM-Config

– VarLTM-ServingCellNoResetID

– VarLTM-ServingCellUE-MeasuredTA-ID

– VarMeasConfig

– VarMeasConfigSL

– VarMeasIdleConfig

– VarMeasIdleReport

– VarMeasReportList

– VarMeasReportListSL

– VarMobilityHistoryReport

– VarPendingRNA-Update

– VarRA-Report

– VarResumeMAC-Input

– VarRLF-Report

– VarServingSecurityCellSetID

– VarShortMAC-Input

– VarSuccessHO-Report

– VarSuccessPSCell-Report

– End of NR-UE-Variables

8 Protocol data unit abstract syntax

8.1 General

8.2 Structure of encoded RRC messages

8.3 Basic production

8.4 Extension

8.5 Padding

9 Specified and default radio configurations

9.1 Specified configurations

9.1.1 Logical channel configurations

9.1.1.1 BCCH configuration

9.1.1.2 CCCH configuration

9.1.1.3 PCCH configuration

9.1.1.4 SCCH configuration

9.1.1.5 STCH configuration

9.1.1.6 MCCH configuration

9.1.1.7 MTCH configuration for MBS broadcast

9.1.2 Void

9.2 Default radio configurations

9.2.1 Default SRB configurations

9.2.2 Default MAC Cell Group configuration

9.2.3 Default values timers and constants

9.2.4 Default PC5 Relay RLC Channel

9.2.5 Default SRAP configurations

9.3 Sidelink pre-configured parameters

– NR-Sidelink-Preconf

– SL-PosPreconfigurationNR

– SL-PreconfigurationNR

– End of NR-Sidelink-Preconf

– SL-AccessInfo-L2U2N

9.5 Radio Information Related to TX Profile

– SL-TxProfile

10 Generic error handling

10.1 General

10.2 ASN.1 violation or encoding error

10.3 Field set to a not comprehended value

10.4 Mandatory field missing

10.5 Not comprehended field

11 Radio information related interactions between network nodes

11.1 General

11.2 Inter-node RRC messages

11.2.1 General

11.2.2 Message definitions

– CG-CandidateList

– HandoverCommand

– HandoverPreparationInformation

– CG-Config

– CG-ConfigInfo

– MeasurementTimingConfiguration

– UERadioPagingInformation

– UERadioAccessCapabilityInformation

11.2.3 Mandatory information in inter-node RRC messages

11.3 Inter-node RRC information element definitions

– ResourceConfigNRDC

11.4 Inter-node RRC multiplicity and type constraint values

– Multiplicity and type constraints definitions

– End of NR-InterNodeDefinitions

12 Processing delay requirements for RRC procedures

Annex A (informative): Guidelines, mainly on use of ASN.1

A.1 Introduction

A.2 Procedural specification

A.2.1 General principles

A.2.2 More detailed aspects

A.3 PDU specification

A.3.1 General principles

A.3.1.1 ASN.1 clauses

A.3.1.2 ASN.1 identifier naming conventions

A.3.1.3 Text references using ASN.1 identifiers

A.3.2 High-level message structure

A.3.3 Message definition

A.3.4 Information elements

A.3.5 Fields with optional presence

A.3.6 Fields with conditional presence

A.3.7 Guidelines on use of lists with elements of SEQUENCE type

A.3.8 Guidelines on use of parameterised SetupRelease type

A.3.9 Guidelines on use of ToAddModList and ToReleaseList

A.3.10 Guidelines on use of lists (without ToAddModList and ToReleaseList)

A.4 Extension of the PDU specifications

A.4.1 General principles to ensure compatibility

A.4.2 Critical extension of messages and fields

A.4.3 Non-critical extension of messages

A.4.3.1 General principles

A.4.3.2 Further guidelines

A.4.3.3 Typical example of evolution of IE with local extensions

A.4.3.4 Typical examples of non critical extension at the end of a message

A.4.3.5 Examples of non-critical extensions not placed at the default extension location

– ParentIE-WithEM

– ChildIE1-WithoutEM

– ChildIE2-WithoutEM

A.5 Guidelines regarding inclusion of transaction identifiers in RRC messages

A.6 Guidelines regarding use of need codes

A.7 Guidelines regarding use of conditions

A.8 Miscellaneous

Annex B (informative): RRC Information

B.1 Protection of RRC messages

B.2 Description of BWP configuration options

Annex C (normative): List of CRs Containing Early Implementable Features and Corrections

Annex D (normative): UE requirements on ASN.1 comprehension

Annex E (informative): Change history