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TECHNICAL SPECIFICATION
LTE;
Evolved Universal Terrestrial Radio Access (E-UTRA);
Radio Resource Control (RRC);
Protocol specification
(3GPP TS 36.331 version 10.22.0 Release 10)
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3GPP TS 36.331 version 10.22.0 Release 10 1 ETSI TS 136 331 V10.22.0 (2018-07)
Reference
RTS/TSGR-0236331vam0
Keywords
LTE
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ETSI
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3GPP TS 36.331 version 10.22.0 Release 10 2 ETSI TS 136 331 V10.22.0 (2018-07)
Intellectual Property Rights
Essential patents
IPRs essential or potentially essential to normative deliverables may have been declared to ETSI. The information
pertaining to these essential IPRs, if any, is publicly available for ETSI members and non-members, and can be found
in ETSI SR 000 314: "Intellectual Property Rights (IPRs); Essential, or potentially Essential, IPRs notified to ETSI in
respect of ETSI standards", which is available from the ETSI Secretariat. Latest updates are available on the ETSI Web
server (https://ipr.etsi.org/).
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Foreword
This Technical Specification (TS) has been produced by ETSI 3rd Generation Partnership Project (3GPP).
The present document may refer to technical specifications or reports using their 3GPP identities, UMTS identities or
GSM identities. These should be interpreted as being references to the corresponding ETSI deliverables.
The cross reference between GSM, UMTS, 3GPP and ETSI identities can be found under
.
Modal verbs terminology
In the present document "shall", "shall not", "should", "should not", "may", "need not", "will", "will not", "can" and
"cannot" are to be interpreted as described in clause 3.2 of the ETSI Drafting Rules (Verbal forms for the expression of
provisions).
"must" and "must not" are NOT allowed in ETSI deliverables except when used in direct citation.
ETSI
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3GPP TS 36.331 version 10.22.0 Release 10 3 ETSI TS 136 331 V10.22.0 (2018-07)
Contents
Intellectual Property Rights . 2
Foreword . 2
Modal verbs terminology . 2
Foreword . 13
1 Scope . 14
2 References . 14
3 Definitions, symbols and abbreviations . 17
3.1 Definitions . 17
3.2 Abbreviations . 17
4 General . 19
4.1 Introduction . 19
4.2 Architecture . 19
4.2.1 UE states and state transitions including inter RAT . 19
4.2.2 Signalling radio bearers . 21
4.3 Services . 21
4.3.1 Services provided to upper layers . 21
4.3.2 Services expected from lower layers . 22
4.4 Functions . 22
5 Procedures . 23
5.1 General . 23
5.1.1 Introduction. 23
5.1.2 General requirements . 23
5.2 System information . 24
5.2.1 Introduction. 24
5.2.1.1 General . 24
5.2.1.2 Scheduling . 24
5.2.1.3 System information validity and notification of changes . 25
5.2.1.4 Indication of ETWS notification . 25
5.2.1.5 Indication of CMAS notification . 26
5.2.2 System information acquisition . 26
5.2.2.1 General . 26
5.2.2.2 Initiation . 27
5.2.2.3 System information required by the UE . 27
5.2.2.4 System information acquisition by the UE . 27
5.2.2.5 Essential system information missing . 28
5.2.2.6 Actions upon reception of the MasterInformationBlock message . 29
5.2.2.7 Actions upon reception of the SystemInformationBlockType1 message . 29
5.2.2.8 Actions upon reception of SystemInformation messages . 30
5.2.2.9 Actions upon reception of SystemInformationBlockType2 . 30
5.2.2.10 Actions upon reception of SystemInformationBlockType3 . 30
5.2.2.11 Actions upon reception of SystemInformationBlockType4 . 31
5.2.2.12 Actions upon reception of SystemInformationBlockType5 . 31
5.2.2.13 Actions upon reception of SystemInformationBlockType6 . 31
5.2.2.14 Actions upon reception of SystemInformationBlockType7 . 31
5.2.2.15 Actions upon reception of SystemInformationBlockType8 . 31
5.2.2.16 Actions upon reception of SystemInformationBlockType9 . 32
5.2.2.17 Actions upon reception of SystemInformationBlockType10 . 32
5.2.2.18 Actions upon reception of SystemInformationBlockType11 . 32
5.2.2.19 Actions upon reception of SystemInformationBlockType12 . 33
5.2.2.20 Actions upon reception of SystemInformationBlockType13 . 34
5.2.3 Acquisition of an SI message . 34
5.3 Connection control . 34
5.3.1 Introduction. 34
5.3.1.1 RRC connection control . 34
ETSI
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3GPP TS 36.331 version 10.22.0 Release 10 4 ETSI TS 136 331 V10.22.0 (2018-07)
5.3.1.2 Security . 35
5.3.1.2a RN security . 36
5.3.1.3 Connected mode mobility . 36
5.3.2 Paging . 37
5.3.2.1 General . 37
5.3.2.2 Initiation . 37
5.3.2.3 Reception of the Paging message by the UE . 37
5.3.3 RRC connection establishment . 38
5.3.3.1 General . 38
5.3.3.2 Initiation . 39
5.3.3.3 Actions related to transmission of RRCConnectionRequest message . 40
5.3.3.4 Reception of the RRCConnectionSetup by the UE . 41
5.3.3.5 Cell re-selection while T300, T302, T303, T305 or T306 is running . 42
5.3.3.6 T300 expiry . 42
5.3.3.7 T302, T303, T305 or T306 expiry or stop . 42
5.3.3.8 Reception of the RRCConnectionReject by the UE . 43
5.3.3.9 Abortion of RRC connection establishment . 43
5.3.3.10 Handling of SSAC related parameters . 43
5.3.3.11 Access barring check. 44
5.3.4 Initial security activation . 45
5.3.4.1 General . 45
5.3.4.2 Initiation . 45
5.3.4.3 Reception of the SecurityModeCommand by the UE . 45
5.3.5 RRC connection reconfiguration . 46
5.3.5.1 General . 46
5.3.5.2 Initiation . 46
5.3.5.3 Reception of an RRCConnectionReconfiguration not including the mobilityControlInfo by the
UE . 47
5.3.5.4 Reception of an RRCConnectionReconfiguration including the mobilityControlInfo by the UE
(handover) . 48
5.3.5.5 Reconfiguration failure . 50
5.3.5.6 T304 expiry (handover failure) . 50
5.3.5.7 Void. 51
5.3.5.8 Radio Configuration involving full configuration option. 51
5.3.6 Counter check . 52
5.3.6.1 General . 52
5.3.6.2 Initiation . 53
5.3.6.3 Reception of the CounterCheck message by the UE . 53
5.3.7 RRC connection re-establishment . 53
5.3.7.1 General . 53
5.3.7.2 Initiation . 54
5.3.7.3 Actions following cell selection while T311 is running . 55
5.3.7.4 Actions related to transmission of RRCConnectionReestablishmentRequest message . 55
5.3.7.5 Reception of the RRCConnectionReestablishment by the UE . 56
5.3.7.6 T311 expiry . 57
5.3.7.7 T301 expiry or selected cell no longer suitable . 57
5.3.7.8 Reception of RRCConnectionReestablishmentReject by the UE . 57
5.3.8 RRC connection release . 57
5.3.8.1 General . 57
5.3.8.2 Initiation . 57
5.3.8.3 Reception of the RRCConnectionRelease by the UE . 57
5.3.8.4 T320 expiry . 58
5.3.9 RRC connection release requested by upper layers . 58
5.3.9.1 General . 58
5.3.9.2 Initiation . 58
5.3.10 Radio resource configuration . 58
5.3.10.0 General . 58
5.3.10.1 SRB addition/ modification . 59
5.3.10.2 DRB release . 59
5.3.10.3 DRB addition/ modification . 60
5.3.10.3a SCell release . 60
5.3.10.3b SCell addition/ modification . 61
ETSI
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3GPP TS 36.331 version 10.22.0 Release 10 5 ETSI TS 136 331 V10.22.0 (2018-07)
5.3.10.4 MAC main reconfiguration . 61
5.3.10.5 Semi-persistent scheduling reconfiguration . 61
5.3.10.6 Physical channel reconfiguration . 61
5.3.10.7 Radio Link Failure Timers and Constants reconfiguration . 61
5.3.10.8 Time domain measurement resource restriction for serving cell . 62
5.3.11 Radio link failure related actions . 62
5.3.11.1 Detection of physical layer problems in RRC_CONNECTED . 62
5.3.11.2 Recovery of physical layer problems . 62
5.3.11.3 Detection of radio link failure . 62
5.3.12 UE actions upon leaving RRC_CONNECTED . 63
5.3.13 UE actions upon PUCCH/ SRS release request . 64
5.3.14 Proximity indication . 64
5.3.14.1 General . 64
5.3.14.2 Initiation . 64
5.3.14.3 Actions related to transmission of ProximityIndication message. 65
5.4 Inter-RAT mobility. 65
5.4.1 Introduction. 65
5.4.2 Handover to E-UTRA . 65
5.4.2.1 General . 65
5.4.2.2 Initiation . 66
5.4.2.3 Reception of the RRCConnectionReconfiguration by the UE . 66
5.4.2.4 Reconfiguration failure . 67
5.4.2.5 T304 expiry (handover to E-UTRA failure) . 67
5.4.3 Mobility from E-UTRA . 68
5.4.3.1 General . 68
5.4.3.2 Initiation . 68
5.4.3.3 Reception of the MobilityFromEUTRACommand by the UE . 68
5.4.3.4 Successful completion of the mobility from E-UTRA . 70
5.4.3.5 Mobility from E-UTRA failure . 70
5.4.4 Handover from E-UTRA preparation request (CDMA2000) . 70
5.4.4.1 General . 70
5.4.4.2 Initiation . 71
5.4.4.3 Reception of the HandoverFromEUTRAPreparationRequest by the UE . 71
5.4.5 UL handover preparation transfer (CDMA2000) . 71
5.4.5.1 General . 71
5.4.5.2 Initiation . 71
5.4.5.3 Actions related to transmission of the ULHandoverPreparationTransfer me ssa ge . 72
5.4.5.4 Failure to deliver the ULHandoverPreparationTransfer message . 72
5.4.6 Inter-RAT cell change order to E-UTRAN . 72
5.4.6.1 General . 72
5.4.6.2 Initiation . 72
5.4.6.3 UE fails to complete an inter-RAT cell change order . 72
5.5 Measurements . 73
5.5.1 Introduction. 73
5.5.2 Measurement configuration . 74
5.5.2.1 General .
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