`
`Technical Specification
`
`3rd Generation Partnership Project;
`Technical Specification Group Radio Access Network;
`Evolved Universal Terrestrial Radio Access (E-UTRA);
`Radio Resource Control (RRC);
`Protocol specification
`(Release 12)
`
`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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`1
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`APPLE 1008
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`Release 12
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`2
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`3GPP TS 36.331 V12.10.0 (2016-06)
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`Keywords
`UMTS, radio
`
`3GPP
`
`Postal address
`
`3GPP support office address
`650 Route des Lucioles - Sophia Antipolis
`Valbonne - FRANCE
`Tel.: +33 4 92 94 42 00 Fax: +33 4 93 65 47 16
`
`Internet
`http://www.3gpp.org
`
`Copyright Notification
`
`No part may be reproduced except as authorized by written permission.
`The copyright and the foregoing restriction extend to reproduction in all media.
`
`© 2016, 3GPP Organizational Partners (ARIB, ATIS, CCSA, ETSI, TSDSI, TTA, TTC).
`All rights reserved.
`
`UMTS™ is a Trade Mark of ETSI registered for the benefit of its members
`3GPP™ is a Trade Mark of ETSI registered for the benefit of its Members and of the 3GPP Organizational Partners
`LTE™ is a Trade Mark of ETSI currently being registered for the benefit of its Members and of the 3GPP Organizational Partners
`GSM® and the GSM logo are registered and owned by the GSM Association
`Bluetooth® is a Trade Mark of the Bluetooth SIG registered for the benefit of its members
`
`3GPP
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`Release 12
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`3
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`3GPP TS 36.331 V12.10.0 (2016-06)
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`Contents
`
`Foreword .......................................................................................................................................................... 15
`1
`Scope ...................................................................................................................................................... 16
`2
`References .............................................................................................................................................. 16
`3
`Definitions, symbols and abbreviations ................................................................................................. 19
`3.1
`Definitions ........................................................................................................................................................... 19
`3.2
`Abbreviations ...................................................................................................................................................... 20
`4
`General ................................................................................................................................................... 22
`4.1
`Introduction ......................................................................................................................................................... 22
`4.2
`Architecture ......................................................................................................................................................... 23
`4.2.1
`UE states and state transitions including inter RAT ..................................................................................... 23
`4.2.2
`Signalling radio bearers ................................................................................................................................. 24
`4.3
`Services ............................................................................................................................................................... 25
`4.3.1
`Services provided to upper layers ................................................................................................................. 25
`4.3.2
`Services expected from lower layers ............................................................................................................ 25
`4.4
`Functions ............................................................................................................................................................. 25
`5
`Procedures .............................................................................................................................................. 27
`5.1
`General ................................................................................................................................................................ 27
`5.1.1
`Introduction ................................................................................................................................................... 27
`5.1.2
`General requirements .................................................................................................................................... 27
`5.2
`System information ............................................................................................................................................. 28
`5.2.1
`Introduction ................................................................................................................................................... 28
`5.2.1.1
`General ..................................................................................................................................................... 28
`5.2.1.2
`Scheduling ............................................................................................................................................... 28
`5.2.1.3
`System information validity and notification of changes ....................................................................... 29
`5.2.1.4
`Indication of ETWS notification ............................................................................................................. 30
`5.2.1.5
`Indication of CMAS notification ............................................................................................................ 30
`5.2.1.6
`Notification of EAB parameters change ................................................................................................. 30
`5.2.2
`System information acquisition .................................................................................................................... 31
`5.2.2.1
`General ..................................................................................................................................................... 31
`5.2.2.2
`Initiation ................................................................................................................................................... 31
`5.2.2.3
`System information required by the UE ................................................................................................. 31
`5.2.2.4
`System information acquisition by the UE ............................................................................................. 32
`5.2.2.5
`Essential system information missing ..................................................................................................... 34
`5.2.2.6
`Actions upon reception of the MasterInformationBlock message ......................................................... 34
`5.2.2.7
`Actions upon reception of the SystemInformationBlockType1 message ................................................ 34
`5.2.2.8
`Actions upon reception of SystemInformation messages ....................................................................... 35
`5.2.2.9
`Actions upon reception of SystemInformationBlockType2 .................................................................... 35
`5.2.2.10
`Actions upon reception of SystemInformationBlockType3 .................................................................... 36
`5.2.2.11
`Actions upon reception of SystemInformationBlockType4 .................................................................... 36
`5.2.2.12
`Actions upon reception of SystemInformationBlockType5 .................................................................... 36
`5.2.2.13
`Actions upon reception of SystemInformationBlockType6 .................................................................... 36
`5.2.2.14
`Actions upon reception of SystemInformationBlockType7 .................................................................... 36
`5.2.2.15
`Actions upon reception of SystemInformationBlockType8 .................................................................... 36
`5.2.2.16
`Actions upon reception of SystemInformationBlockType9 .................................................................... 37
`5.2.2.17
`Actions upon reception of SystemInformationBlockType10 .................................................................. 37
`5.2.2.18
`Actions upon reception of SystemInformationBlockType11 .................................................................. 37
`5.2.2.19
`Actions upon reception of SystemInformationBlockType12 .................................................................. 38
`5.2.2.20
`Actions upon reception of SystemInformationBlockType13 .................................................................. 39
`5.2.2.21
`Actions upon reception of SystemInformationBlockType14 .................................................................. 39
`5.2.2.22
`Actions upon reception of SystemInformationBlockType15 .................................................................. 39
`5.2.2.23
`Actions upon reception of SystemInformationBlockType16 .................................................................. 39
`5.2.2.24
`Actions upon reception of SystemInformationBlockType17 .................................................................. 39
`5.2.2.25
`Actions upon reception of SystemInformationBlockType18 .................................................................. 39
`5.2.2.26
`Actions upon reception of SystemInformationBlockType19 .................................................................. 40
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`3GPP
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`Release 12
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`3GPP TS 36.331 V12.10.0 (2016-06)
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`5.2.3
`5.3
`5.3.1
`5.3.1.1
`5.3.1.2
`5.3.1.2a
`5.3.1.3
`5.3.2
`5.3.2.1
`5.3.2.2
`5.3.2.3
`5.3.3
`5.3.3.1
`5.3.3.1a
`5.3.3.2
`5.3.3.3
`5.3.3.4
`5.3.3.5
`5.3.3.6
`5.3.3.7
`5.3.3.8
`5.3.3.9
`5.3.3.10
`5.3.3.11
`5.3.3.12
`5.3.4
`5.3.4.1
`5.3.4.2
`5.3.4.3
`5.3.5
`5.3.5.1
`5.3.5.2
`5.3.5.3
`
`5.3.5.4
`
`5.3.5.5
`5.3.5.6
`5.3.5.7
`5.3.5.7a
`5.3.5.8
`5.3.6
`5.3.6.1
`5.3.6.2
`5.3.6.3
`5.3.7
`5.3.7.1
`5.3.7.2
`5.3.7.3
`5.3.7.4
`5.3.7.5
`5.3.7.6
`5.3.7.7
`5.3.7.8
`5.3.8
`5.3.8.1
`5.3.8.2
`5.3.8.3
`5.3.8.4
`5.3.9
`5.3.9.1
`5.3.9.2
`
`Acquisition of an SI message ........................................................................................................................ 40
`Connection control .............................................................................................................................................. 40
`Introduction ................................................................................................................................................... 40
`RRC connection control .......................................................................................................................... 40
`Security .................................................................................................................................................... 41
`RN security .............................................................................................................................................. 42
`Connected mode mobility ....................................................................................................................... 42
`Paging ............................................................................................................................................................ 44
`General ..................................................................................................................................................... 44
`Initiation ................................................................................................................................................... 44
`Reception of the Paging message by the UE .......................................................................................... 44
`RRC connection establishment ..................................................................................................................... 45
`General ..................................................................................................................................................... 45
`Conditions for establishing RRC Connection for sidelink communication/ discovery ......................... 46
`Initiation ................................................................................................................................................... 46
`Actions related to transmission of RRCConnectionRequest message .................................................... 49
`Reception of the RRCConnectionSetup by the UE ................................................................................. 49
`Cell re-selection while T300, T302, T303, T305 or T306 is running .................................................... 51
`T300 expiry .............................................................................................................................................. 51
`T302, T303, T305 or T306 expiry or stop .............................................................................................. 52
`Reception of the RRCConnectionReject by the UE ................................................................................ 52
`Abortion of RRC connection establishment ........................................................................................... 53
`Handling of SSAC related parameters .................................................................................................... 53
`Access barring check ............................................................................................................................... 54
`EAB check ............................................................................................................................................... 55
`Initial security activation ............................................................................................................................... 55
`General ..................................................................................................................................................... 55
`Initiation ................................................................................................................................................... 56
`Reception of the SecurityModeCommand by the UE ............................................................................. 56
`RRC connection reconfiguration .................................................................................................................. 57
`General ..................................................................................................................................................... 57
`Initiation ................................................................................................................................................... 57
`Reception of an RRCConnectionReconfiguration not including the mobilityControlInfo by the
`UE ............................................................................................................................................................ 57
`Reception of an RRCConnectionReconfiguration including the mobilityControlInfo by the UE
`(handover) ................................................................................................................................................ 59
`Reconfiguration failure ............................................................................................................................ 62
`T304 expiry (handover failure) ............................................................................................................... 62
`Void .......................................................................................................................................................... 64
`T307 expiry (SCG change failure) .......................................................................................................... 64
`Radio Configuration involving full configuration option ....................................................................... 64
`Counter check ................................................................................................................................................ 65
`General ..................................................................................................................................................... 65
`Initiation ................................................................................................................................................... 65
`Reception of the CounterCheck message by the UE .............................................................................. 65
`RRC connection re-establishment ................................................................................................................. 66
`General ..................................................................................................................................................... 66
`Initiation ................................................................................................................................................... 67
`Actions following cell selection while T311 is running ......................................................................... 67
`Actions related to transmission of RRCConnectionReestablishmentRequest message ......................... 68
`Reception of the RRCConnectionReestablishment by the UE ............................................................... 68
`T311 expiry .............................................................................................................................................. 70
`T301 expiry or selected cell no longer suitable ...................................................................................... 70
`Reception of RRCConnectionReestablishmentReject by the UE ........................................................... 70
`RRC connection release ................................................................................................................................ 71
`General ..................................................................................................................................................... 71
`Initiation ................................................................................................................................................... 71
`Reception of the RRCConnectionRelease by the UE ............................................................................. 71
`T320 expiry .............................................................................................................................................. 71
`RRC connection release requested by upper layers ..................................................................................... 72
`General ..................................................................................................................................................... 72
`Initiation ................................................................................................................................................... 72
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`3GPP
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`Release 12
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`5
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`3GPP TS 36.331 V12.10.0 (2016-06)
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`5.3.10
`5.3.10.0
`5.3.10.1
`5.3.10.2
`5.3.10.3
`5.3.10.3a1
`5.3.10.3a
`5.3.10.3b
`5.3.10.3c
`5.3.10.4
`5.3.10.5
`5.3.10.6
`5.3.10.7
`5.3.10.8
`5.3.10.9
`5.3.10.10
`5.3.10.11
`5.3.10.12
`5.3.10.13
`5.3.10.14
`5.3.10.15
`5.3.11
`5.3.11.1
`5.3.11.2
`5.3.11.3
`5.3.12
`5.3.13
`5.3.14
`5.3.14.1
`5.3.14.2
`5.3.14.3
`5.3.15
`5.4
`5.4.1
`5.4.2
`5.4.2.1
`5.4.2.2
`5.4.2.3
`5.4.2.4
`5.4.2.5
`5.4.3
`5.4.3.1
`5.4.3.2
`5.4.3.3
`5.4.3.4
`5.4.3.5
`5.4.4
`5.4.4.1
`5.4.4.2
`5.4.4.3
`5.4.5
`5.4.5.1
`5.4.5.2
`5.4.5.3
`5.4.5.4
`5.4.6
`5.4.6.1
`5.4.6.2
`5.4.6.3
`5.5
`5.5.1
`5.5.2
`
`Radio resource configuration ........................................................................................................................ 72
`General ..................................................................................................................................................... 72
`SRB addition/ modification ..................................................................................................................... 73
`DRB release ............................................................................................................................................. 73
`DRB addition/ modification .................................................................................................................... 74
`DC specific DRB addition or reconfiguration ........................................................................................ 74
`SCell release ............................................................................................................................................ 76
`SCell addition/ modification ................................................................................................................... 76
`PSCell addition or modification .............................................................................................................. 77
`MAC main reconfiguration ..................................................................................................................... 77
`Semi-persistent scheduling reconfiguration ............................................................................................ 77
`Physical channel reconfiguration ............................................................................................................ 77
`Radio Link Failure Timers and Constants reconfiguration .................................................................... 78
`Time domain measurement resource restriction for serving cell ........................................................... 78
`Other configuration ................................................................................................................................. 78
`SCG reconfiguration ................................................................................................................................ 79
`SCG dedicated resource configuration ................................................................................................... 81
`Reconfiguration SCG or split DRB by drb-ToAddModList ................................................................... 81
`Neighbour cell information reconfiguration ........................................................................................... 82
`Void .......................................................................................................................................................... 82
`Sidelink dedicated configuration ............................................................................................................. 82
`Radio link failure related actions .................................................................................................................. 83
`Detection of physical layer problems in RRC_CONNECTED .............................................................. 83
`Recovery of physical layer problems ...................................................................................................... 83
`Detection of radio link failure ................................................................................................................. 83
`UE actions upon leaving RRC_CONNECTED ............................................................................................ 85
`UE actions upon PUCCH/ SRS release request ........................................................................................... 85
`Proximity indication ...................................................................................................................................... 86
`General ..................................................................................................................................................... 86
`Initiation ................................................................................................................................................... 86
`Actions related to transmission of ProximityIndication message .......................................................... 86
`Void ............................................................................................................................................................... 87
`Inter-RAT mobility ............................................................................................................................................. 87
`Introduction ................................................................................................................................................... 87
`Handover to E-UTRA ................................................................................................................................... 87
`General ..................................................................................................................................................... 87
`Initiation ................................................................................................................................................... 88
`Reception of the RRCConnectionReconfiguration by the UE ............................................................... 88
`Reconfiguration failure ............................................................................................................................ 89
`T304 expiry (handover to E-UTRA failure) ........................................................................................... 90
`Mobility from E-UTRA ................................................................................................................................ 90
`General ..................................................................................................................................................... 90
`Initiation ................................................................................................................................................... 91
`Reception of the MobilityFromEUTRACommand by the UE ................................................................ 91
`Successful completion of the mobility from E-UTRA ........................................................................... 92
`Mobility from E-UTRA failure ............................................................................................................... 92
`Handover from E-UTRA preparation request (CDMA2000) ...................................................................... 93
`General ..................................................................................................................................................... 93
`Initiation ................................................................................................................................................... 93
`Reception of the HandoverFromEUTRAPreparationRequest by the UE .............................................. 93
`UL handover preparation transfer (CDMA2000) ......................................................................................... 94
`General ..................................................................................................................................................... 94
`Initiation ................................................................................................................................................... 94
`Actions related to transmission of the ULHandoverPreparationTransfer message .............................. 94
`Failure to deliver the ULHandoverPreparationTransfer message ......................................................... 94
`Inter-RAT cell change order to E-UTRAN .................................................................................................. 94
`General ..................................................................................................................................................... 94
`Initiation ................................................................................................................................................... 95
`UE fails to complete an inter-RAT cell change order ............................................................................ 95
`Measurements ..................................................................................................................................................... 95
`Introduction ................................................................................................................................................... 95
`Measurement configuration .......................................................................................................................... 97
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`3GPP TS 36.331 V12.10.0 (2016-06)
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`5.5.2.1
`5.5.2.2
`5.5.2.2a
`5.5.2.3
`5.5.2.4
`5.5.2.5
`5.5.2.6
`5.5.2.7
`5.5.2.8
`5.5.2.9
`5.5.2.10
`5.5.3
`5.5.3.1
`5.5.3.2
`5.5.4
`5.5.4.1
`5.5.4.2
`5.5.4.3
`5.5.4.4
`5.5.4.5
`5.5.4.6
`
`5.5.4.6a
`5.5.4.7
`5.5.4.8
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`5.5.4.9
`5.5.4.10
`5.5.5
`5.5.6
`5.5.6.1
`5.5.6.2
`5.5.7
`5.5.7.1
`5.5.7.2
`5.5.7.3
`5.6
`5.6.1
`5.6.1.1
`5.6.1.2
`5.6.1.3
`5.6.2
`5.6.2.1
`5.6.2.2
`5.6.2.3
`5.6.2.4
`5.6.3
`5.6.3.1
`5.6.3.2
`5.6.3.3
`5.6.4
`5.6.4.1
`5.6.4.2
`5.6.4.3
`5.6.4.4
`5.6.5
`5.6.5.1
`5.6.5.2
`5.6.5.3
`5.6.6
`5.6.6.1
`5.6.6.2
`
`General ..................................................................................................................................................... 97
`Measurement identity removal ................................................................................................................ 98
`Measurement identity autonomous removal ........................................................................................... 98
`Measurement identity addition/ modification ......................................................................................... 98
`Measurement object removal .................................................................................................................. 99
`Measurement object addition/ modification ........................................................................................... 99
`Reporting configuration removal .......................................................................................................... 101
`Reporting configuration addition/ modification ................................................................................... 101
`Quantity configuration ........................................................................................................................... 102
`Measurement gap configuration ............................................................................................................ 102
`Discovery signals measurement timing configuration ......................................................................... 102
`Performing measurements ........................................................................................................................... 103
`General ................................................................................................................................................... 103
`Layer 3 filtering ..................................................................................................................................... 105
`Measurement report triggering .................................................................................................................... 105
`General ................................................................................................................................................... 105
`Event A1 (Serving becomes better than thresho