ETSI TS 136 331 V13.15.0 (2020-01)

LTE; Evolved Universal Terrestrial Radio Access (E-UTRA); Radio Resource Control (RRC); Protocol specification (3GPP TS 36.331 version 13.15.0 Release 13)

RTS/TSGR-0236331vdf0

General Information

• Status: Published
• Publication Date: 16-Jan-2020
• Technical Committee: 3GPP RAN 2 - Radio layer 2 specification and Radio layer 3 RR specification
• Current Stage: 12 - Completion
• Completion Date: 17-Jan-2020

Standards Content (Sample)

ETSI TS 136 331 V13.15.0 (2020-01)






TECHNICAL SPECIFICATION
LTE;
Evolved Universal Terrestrial Radio Access (E-UTRA);
Radio Resource Control (RRC);
Protocol specification
(3GPP TS 36.331 version 13.15.0 Release 13)

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3GPP TS 36.331 version 13.15.0 Release 13 1 ETSI TS 136 331 V13.15.0 (2020-01)



Reference
RTS/TSGR-0236331vdf0
Keywords
LTE
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3GPP TS 36.331 version 13.15.0 Release 13 2 ETSI TS 136 331 V13.15.0 (2020-01)
Intellectual Property Rights
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ETSI

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3GPP TS 36.331 version 13.15.0 Release 13 3 ETSI TS 136 331 V13.15.0 (2020-01)
Contents
Intellectual Property Rights . 2
Legal Notice . 2
Modal verbs terminology . 2
Foreword . 19
1 Scope . 20
2 References . 20
3 Definitions, symbols and abbreviations . 23
3.1 Definitions . 23
3.2 Abbreviations . 25
4 General . 28
4.1 Introduction . 28
4.2 Architecture . 29
4.2.1 UE states and state transitions including inter RAT . 29
4.2.2 Signalling radio bearers . 30
4.3 Services . 31
4.3.1 Services provided to upper layers . 31
4.3.2 Services expected from lower layers . 31
4.4 Functions . 31
4.5 Data available for transmission for NB-IoT . 33
5 Procedures . 33
5.1 General . 33
5.1.1 Introduction. 33
5.1.2 General requirements . 33
5.2 System information . 34
5.2.1 Introduction. 34
5.2.1.1 General . 34
5.2.1.2 Scheduling . 35
5.2.1.2a Scheduling for NB-IoT . 36
5.2.1.3 System information validity and notification of changes . 36
5.2.1.4 Indication of ETWS notification . 38
5.2.1.5 Indication of CMAS notification . 38
5.2.1.6 Notification of EAB parameters change . 38
5.2.1.7 Access Barring parameters change in NB-IoT . 39
5.2.2 System information acquisition . 39
5.2.2.1 General . 39
5.2.2.2 Initiation . 39
5.2.2.3 System information required by the UE . 40
5.2.2.4 System information acquisition by the UE . 40
5.2.2.5 Essential system information missing . 43
5.2.2.6 Actions upon reception of the MasterInformationBlock message . 44
5.2.2.7 Actions upon reception of the SystemInformationBlockType1 message . 44
5.2.2.8 Actions upon reception of SystemInformation messages . 45
5.2.2.9 Actions upon reception of SystemInformationBlockType2 . 46
5.2.2.10 Actions upon reception of SystemInformationBlockType3 . 47
5.2.2.11 Actions upon reception of SystemInformationBlockType4 . 47
5.2.2.12 Actions upon reception of SystemInformationBlockType5 . 47
5.2.2.13 Actions upon reception of SystemInformationBlockType6 . 48
5.2.2.14 Actions upon reception of SystemInformationBlockType7 . 48
5.2.2.15 Actions upon reception of SystemInformationBlockType8 . 49
5.2.2.16 Actions upon reception of SystemInformationBlockType9 . 49
5.2.2.17 Actions upon reception of SystemInformationBlockType10 . 50
5.2.2.18 Actions upon reception of SystemInformationBlockType11 . 50
5.2.2.19 Actions upon reception of SystemInformationBlockType12 . 50
ETSI

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3GPP TS 36.331 version 13.15.0 Release 13 4 ETSI TS 136 331 V13.15.0 (2020-01)
5.2.2.20 Actions upon reception of SystemInformationBlockType13 . 51
5.2.2.21 Actions upon reception of SystemInformationBlockType14 . 51
5.2.2.22 Actions upon reception of SystemInformationBlockType15 . 51
5.2.2.23 Actions upon reception of SystemInformationBlockType16 . 51
5.2.2.24 Actions upon reception of SystemInformationBlockType17 . 52
5.2.2.25 Actions upon reception of SystemInformationBlockType18 . 52
5.2.2.26 Actions upon reception of SystemInformationBlockType19 . 52
5.2.2.27 Actions upon reception of SystemInformationBlockType20 . 52
5.2.3 Acquisition of an SI message . 53
5.2.3a Acquisition of an SI message by BL UE or UE in CE or a NB-IoT UE . 53
5.3 Connection control . 54
5.3.1 Introduction. 54
5.3.1.1 RRC connection control . 54
5.3.1.2 Security . 55
5.3.1.2a RN security . 56
5.3.1.3 Connected mode mobility . 56
5.3.1.4 Connection control in NB-IoT . 57
5.3.2 Paging . 58
5.3.2.1 General . 58
5.3.2.2 Initiation . 58
5.3.2.3 Reception of the Paging message by the UE . 59
5.3.3 RRC connection establishment . 60
5.3.3.1 General . 60
5.3.3.1a Conditions for establishing RRC Connection for sidelink communication/ discovery . 61
5.3.3.2 Initiation . 62
5.3.3.3 Actions related to transmission of RRCConnectionRequest message . 67
5.3.3.3a Actions related to transmission of RRCConnectionResumeRequest message . 67
5.3.3.4 Reception of the RRCConnectionSetup by the UE . 68
5.3.3.4a Reception of the RRCConnectionResume by the UE . 70
5.3.3.5 Cell re-selection while T300, T302, T303, T305, T306, or T308 is running . 72
5.3.3.6 T300 expiry . 72
5.3.3.7 T302, T303, T305, T306, or T308 expiry or stop . 74
5.3.3.8 Reception of the RRCConnectionReject by the UE . 74
5.3.3.9 Abortion of RRC connection establishment . 75
5.3.3.10 Handling of SSAC related parameters . 75
5.3.3.11 Access barring check. 76
5.3.3.12 EAB check . 77
5.3.3.13 Access barring check for ACDC . 78
5.3.3.14 Access Barring check for NB-IoT . 78
5.3.4 Initial security activation . 80
5.3.4.1 General . 80
5.3.4.2 Initiation . 80
5.3.4.3 Reception of the SecurityModeCommand by the UE . 80
5.3.5 RRC connection reconfiguration . 81
5.3.5.1 General . 81
5.3.5.2 Initiation . 82
5.3.5.3 Reception of an RRCConnectionReconfiguration not including the mobilityControlInfo by the
UE . 82
5.3.5.4 Reception of an RRCConnectionReconfiguration including the mobilityControlInfo by the UE
(handover) . 84
5.3.5.5 Reconfiguration failure . 87
5.3.5.6 T304 expiry (handover failure) . 88
5.3.5.7 Void. 89
5.3.5.7a T307 expiry (SCG change failure) . 89
5.3.5.8 Radio Configuration involving full configuration option. 89
5.3.6 Counter check . 90
5.3.6.1 General . 90
5.3.6.2 Initiation . 90
5.3.6.3 Reception of the CounterCheck message by the UE . 91
5.3.7 RRC connection re-establishment . 91
5.3.7.1 General . 91
5.3.7.2 Initiation . 92
ETSI

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3GPP TS 36.331 version 13.15.0 Release 13 5 ETSI TS 136 331 V13.15.0 (2020-01)
5.3.7.3 Actions following cell selection while T311 is running . 93
5.3.7.4 Actions related to transmission of RRCConnectionReestablishmentRequest message . 93
5.3.7.5 Reception of the RRCConnectionReestablishment by the UE . 94
5.3.7.6 T311 expiry . 96
5.3.7.7 T301 expiry or selected cell no longer suitable . 96
5.3.7.8 Reception of RRCConnectionReestablishmentReject by the UE . 96
5.3.8 RRC connection release . 96
5.3.8.1 General . 96
5.3.8.2 Initiation . 96
5.3.8.3 Reception of the RRCConnectionRelease by the UE . 97
5.3.8.4 T320 expiry . 97
5.3.9 RRC connection release requested by upper layers . 98
5.3.9.1 General . 98
5.3.9.2 Initiation . 98
5.3.10 Radio resource configuration . 98
5.3.10.0 General . 98
5.3.10.1 SRB addition/ modification . 99
5.3.10.2 DRB release . 99
5.3.10.3 DRB addition/ modification . 100
5.3.10.3a1 DC specific DRB addition or reconfiguration . 101
5.3.10.3a2 LWA specific DRB addition or reconfiguration . 102
5.3.10.3a3 LWIP specific DRB addition or reconfiguration. 103
5.3.10.3a SCell release . 103
5.3.10.3b SCell addition/ modification . 103
5.3.10.3c PSCell addition or modification . 104
5.3.10.4 MAC main reconfiguration . 104
5.3.10.5 Semi-persistent scheduling reconfiguration . 105
5.3.10.6 Physical channel reconfiguration . 105
5.3.10.7 Radio Link Failure Timers and Constants reconfiguration . 106
5.3.10.8 Time domain measurement resource restriction for serving cell . 106
5.3.10.9 Other configuration . 106
5.3.10.10 SCG reconfiguration . 107
5.3.10.11 SCG dedicated resource configuration . 109
5.3.10.12 Reconfiguration SCG or split DRB by drb-ToAddModList . 109
5.3.10.13 Neighbour cell information reconfiguration . 109
5.3.10.14 Void. 110
5.3.10.15 Sidelink dedicated configuration . 110
5.3.10.16 T370 expiry . 111
5.3.11 Radio link failure related actions . 111
5.3.11.1 Detection of physical layer problems in RRC_CONNECTED . 111
5.3.11.2 Recovery of physical layer problems . 112
5.3.11.3 Detection of radio link failure . 112
5.3.12 UE actions upon leaving RRC_CONNECTED . 114
5.3.13 UE actions upon PUCCH/ SRS release request . 115
5.3.14 Proximity indication . 115
5.3.14.1 General . 115
5.3.14.2 Initiation . 115
5.3.14.3 Actions related to transmission of ProximityIndication message. 116
5.3.15 Void .
...