ETSI TS 125 331 V17.1.0 (2022-08)

Universal Mobile Telecommunications System(UMTS) ; Radio Resource Control (RRC); Protocol specification (3GPP TS 25.331 version 17.1.0 Release 17)

RTS/TSGR-0025331vh10

General Information

• Status: Not Published
• Technical Committee: 3GPP RAN - Technical Specification Group Radio Access Network
• Current Stage: 12 - Citation in the OJ (auto-insert)
• Completion Date: 17-Aug-2022

Standards Content (Sample)

TECHNICAL SPECIFICATION
Universal Mobile Telecommunications System (UMTS);
Radio Resource Control (RRC);
Protocol specification
(3GPP TS 25.331 version 17.1.0 Release 17)

3GPP TS 25.331 version 17.1.0 Release 17 1 ETSI TS 125 331 V17.1.0 (2022-08)

Reference
RTS/TSGR-0025331vh10
Keywords
UMTS
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ETSI
3GPP TS 25.331 version 17.1.0 Release 17 2 ETSI TS 125 331 V17.1.0 (2022-08)
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ETSI
3GPP TS 25.331 version 17.1.0 Release 17 3 ETSI TS 125 331 V17.1.0 (2022-08)
Contents
Intellectual Property Rights . 2
Legal Notice . 2
Modal verbs terminology . 2
Foreword . 40
1 Scope . 41
2 References . 41
3 Definitions and abbreviations . 44
3.1 Definitions . 44
3.2 Abbreviations . 47
4 General . 50
4.1 Overview of the specification . 50
4.2 RRC Layer Model . 51
4.3 Protocol specification principles . 54
5 RRC Functions and Services provided to upper layers . 54
5.1 RRC Functions . 54
5.2 RRC Services provided to upper layers . 55
5.3 Primitives between RRC and upper layers . 55
6 Services expected from lower layers . 55
6.1 Services expected from Layer 2 . 55
6.2 Services expected from Layer 1 . 55
6.3 Signalling Radio Bearers . 55
7 Protocol states . 56
7.1 Overview of RRC States and State Transitions including GSM and E-UTRA . 56
7.2 Processes in UE modes/states . 57
7.2.1 UE Idle mode . 57
7.2.2 UTRA RRC Connected mode . 57
7.2.2.1 URA_PCH or CELL_PCH state . 57
7.2.2.2 CELL_FACH state . 58
7.2.2.3 CELL_DCH state . 60
8 RRC procedures . 60
8.1 RRC Connection Management Procedures . 61
8.1.1 Broadcast of system information . 61
8.1.1.1 General . 62
8.1.1.1.1 System information structure . 62
8.1.1.1.2 System information blocks . 62
8.1.1.1.3 Segmentation and concatenation of system information blocks . 70
8.1.1.1.4 Re-assembly of segments . 71
8.1.1.1.5 Scheduling of system information . 72
8.1.1.2 Initiation . 73
8.1.1.3 Reception of SYSTEM INFORMATION messages by the UE . 73
8.1.1.4 Void. 73
8.1.1.5 Actions upon reception of the Master Information Block and Scheduling Block(s) . 73
8.1.1.6 Actions upon reception of system information blocks . 78
8.1.1.6.1 System Information Block type 1 . 80
8.1.1.6.2 System Information Block type 2 . 80
8.1.1.6.3 System Information Block type 3 . 81
8.1.1.6.4 System Information Block type 4 . 86
8.1.1.6.5 System Information Block type 5 and 5bis . 86
8.1.1.6.6 System Information Block type 6 . 92
8.1.1.6.7 System Information Block type 7 . 95
8.1.1.6.8 Void . 95
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3GPP TS 25.331 version 17.1.0 Release 17 4 ETSI TS 125 331 V17.1.0 (2022-08)
8.1.1.6.9 Void . 95
8.1.1.6.10 Void . 95
8.1.1.6.11 System Information Block type 11 . 95
8.1.1.6.11a System Information Block type 11bis . 97
8.1.1.6.11b System Information Block type 11ter . 98
8.1.1.6.12 System Information Block type 12 . 98
8.1.1.6.13 System Information Block type 13 . 100
8.1.1.6.14 System Information Block type 14 . 100
8.1.1.6.15 System Information Block type 15 . 100
8.1.1.6.15.0 System Information Block type 15bis . 100
8.1.1.6.15.1 System Information Block type 15.1 . 101
8.1.1.6.15.1a System Information Block type 15.1bis . 101
8.1.1.6.15.1b System Information Block type 15.1ter . 101
8.1.1.6.15.2 System Information Block type 15.2 . 101
8.1.1.6.15.2a System Information Block type 15.2bis . 102
8.1.1.6.15.2b System Information Block type 15.2ter . 102
8.1.1.6.15.3 System Information Block type 15.3 . 102
8.1.1.6.15.3a System Information Block type 15.3bis . 103
8.1.1.6.15.4 System Information Block type 15.4 . 104
8.1.1.6.15.5 System Information Block type 15.5 . 104
8.1.1.6.15.6 System Information Block type 15.6 . 104
8.1.1.6.15.7 System Information Block type 15.7 . 104
8.1.1.6.15.8 System Information Block type 15.8 . 104
8.1.1.6.16 System Information Block type 16 . 105
8.1.1.6.17 System Information Block type 17 . 105
8.1.1.6.18 System Information Block type 18 . 105
8.1.1.6.19 System Information Block type 19 . 107
8.1.1.6.20 System Information Block type 20 . 107
8.1.1.6.21 System Information Block type 21 . 108
8.1.1.6.22 System Information Block type 22 . 108
8.1.1.6.23 System Information Block type 23 . 108
8.1.1.6.24 System Information Block type 24 . 109
8.1.1.6.25 System Information Block type 25 . 109
8.1.1.7 Modification of system information . 110
8.1.1.7.1 Modification of system information blocks using a value tag . 110
8.1.1.7.2 Synchronised modification of system information blocks . 111
8.1.1.7.3 Actions upon system information change . 111
8.1.1.7.4 Actions upon expiry of a system information expiry timer . 112
8.1.1.8 Reception of System Information Container by the UE . 113
8.1.2 Paging . 113
8.1.2.1 General . 113
8.1.2.2 Initiation . 114
8.1.2.3 Reception of a PAGING TYPE 1 message by the UE . 114
8.1.3 RRC connection establishment . 116
8.1.3.1 General . 116
8.1.3.2 Initiation . 116
8.1.3.3 RRC CONNECTION REQUEST message contents to set . 117
8.1.3.4 Reception of an RRC CONNECTION REQUEST message by the UTRAN . 120
8.1.3.5 Cell re-selection, T300 or T318 timeout . 121
8.1.3.5a Abortion of RRC connection establishment . 122
8.1.3.6 Reception of an RRC CONNECTION SETUP message by the UE . 122
8.1.3.7 Physical channel failure or cell re-selection . 129
8.1.3.8 Invalid RRC CONNECTION SETUP message, unsupported configuration or invalid
configuration . 129
8.1.3.9 Reception of an RRC CONNECTION REJECT message by the UE . 130
8.1.3.10 Invalid RRC CONNECTION REJECT message . 134
8.1.3.11 Logging of failed RRC Connection Establishment . 134
8.1.4 RRC connection release . 135
8.1.4.1 General . 136
8.1.4.2 Initiation . 136
8.1.4.3 Reception of an RRC CONNECTION RELEASE message by the UE . 136
8.1.4.4 Invalid RRC CONNECTION RELEASE message . 138
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8.1.4.5 Cell re-selection or radio link failure . 138
8.1.4.6 Expiry of timer T308, unacknowledged mode transmission . 139
8.1.4.7 Void. 139
8.1.4.8 Reception of an RRC CONNECTION RELEASE COMPLETE message by UTRAN . 140
8.1.4.9 Unsuccessful transmission of the RRC CONNECTION RELEASE COMPLETE message,
acknowledged mode transmission . 140
8.1.4.10 Detection of loss of dedicated physical channel by UTRAN in CELL_DCH state . 140
8.1.4.11 Failure to receive RRC CONNECTION RELEASE COMPLETE message by UTRAN . 140
8.1.4a RRC connection release requested by upper layers . 140
8.1.4a.1 General . 140
8.1.4a.2 Initiation . 140
8.1.5 Void . 141
8.1.6 Transmission of UE capability information . 141
8.1.6.1 General . 141
8.1.6.2 Initiation . 141
8.1.6.3 Reception of a UE CAPABILITY INFORMATION message by the UTRAN . 144
8.1.6.4 Reception of the UE CAPABILITY INFORMATION CONFIRM message by the UE . 145
8.1.6.5 Invalid UE CAPABILITY INFORMATION CONFIRM message . 145
8.1.6.6 T304 timeout . 146
8.1.7 UE capability enquiry . 146
8.1.7.1 General . 146
8.1.7.2 Initiation . 146
8.1.7.3 Reception of a UE CAPABILITY ENQUIRY message by the UE . 146
8.1.7.4 Invalid UE CAPABILITY ENQUIRY message . 147
8.1.8 Initial Direct transfer . 147
8.1.8.1 General . 147
8.1.8.2 Initiation of Initial direct transfer procedure in the UE . 147
8.1.8.2a RLC re-establishment or inter-RAT change . 150
8.1.8.2ab Inter-RAT handover from UTRAN to GERAN Iu mode . 150
8.1.8.2b Abortion of signalling connection establishment . 150
8.1.8.2c Inter-RAT handover from UTRAN to E-UTRAN . 150
8.1.8.3 Reception of INITIAL DIRECT TRANSFER message by the UTRAN . 150
8.1.9 Downlink Direct transfer . 151
8.1.9.1 General . 151
8.1.9.2 Initiation of downlink direct transfer procedure in the UTRAN . 151
8.1.9.3 Reception of a DOWNLINK DIRECT TRANSFER message by the UE . 151
8.1.9.3a No signalling connection exists . 151
8.1.9.4 Invalid DOWNLINK DIRECT TRANSFER message . 152
8.1.10 Uplink Direct transfer . 152
8.1.10.1 General . 152
8.1.10.2 Initiation of uplink direct transfer procedure in the UE . 153
8.1.10.2a RLC re-establishment or inter-RAT change . 153
8.1.10.2b Inter-RAT handover from UTRAN to GERAN Iu mode . 154
8.1.10.2c Inter-RAT handover from UTRAN to E-UTRAN . 154
8.1.10.3 Reception of UPLINK DIRECT TRANSFER message by the UTRAN . 154
8.1.11 UE dedicated paging . 154
8.1.11.1 General . 154
8.1.11.2 Initiation . 154
8.1.11.3 Reception of a PAGING TYPE 2 message by the UE . 155
8.1.11.4 Invalid PAGING TYPE 2 message . 155
8.1.12 Security mode control . 155
8.1.12.1 General . 156
8.1.12.2 Initiation . 156
8.1.12.2.1 Ciphering configuration change . 156
8.1.12.2.2 Integrity protection configuration change. 157
8.1.12.3 Reception of SECURITY MODE COMMAND message by the UE . 159
8.1.12.3.1 New ciphering and integrity protection keys . 163
8.1.12.4 Void. 164
8.1.12.4a Incompatible simultaneous security reconfiguration . 164
8.1.12.4b Cell update procedure during security reconfiguration . 165
8.1.12.4c Invalid configuration . 166
8.1.12.5 Reception of SECURITY MODE COMPLETE message by the UTRAN . 166
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8.1.12.6 Invalid SECURITY MODE COMMAND message . 168
8.1.13 Signalling connection release procedure . 169
8.1.13.1 General . 169
8.1.13.2 Initiation of SIGNALLING CONNECTION RELEASE by the UTRAN . 169
8.1.13.3 Reception of SIGNALLING CONNECTION RELEASE by the UE . 169
8.1.13.4 Invalid SIGNALLING CONNECTION RELEASE message . 169
8.1.13.5 Invalid configuration . 170
8.1.14 Signalling connection release indication procedure . 170
8.1.14.1 General . 170
8.1.14.2 Initiation . 170
8.1.14.2a RLC re-establishment or inter-RAT change . 173
8.1.14.3 Reception of SIGNALLING CONNECTION RELEASE INDICATION by the UTRAN . 173
8.1.14.4 Expiry of timer T323 . 173
8.1.15 Counter check procedure . 173
8.1.15.1 General . 174
8.1.15.2 Initiation . 174
8.1.15.3 Reception of a COUNTER CHECK message by the UE . 174
8.1.15.4 Reception of the COUNTER CHECK RESPONSE message by UTRAN . 175
8.1.15.5 Cell re-selection . 175
8.1.15.6 Invalid COUNTER CHECK message . 175
8.1.16 Inter RAT handover information transfer . 175
8.1.16.1 General . 176
8.1.16.2 Initiation . 176
8.1.16.3 INTER RAT HANDOVER INFO message contents to set . 176
8.1.17 ETWS primary notification with security procedure . 178
8.1.17.1 General . 178
8.1.17.2 Initiation . 178
8.1.17.3 Void. 178
8.1.17.4 Reception of the ETWS PRIMARY NOTIFICATION WITH SECURITY message . 178
8.1.17.5 Forward of the ETWS primary notification to the upper layers . 178
8.1.17.6 Void. 178
8.2 Radio Bearer control procedures . 179
8.2.1 Radio bearer establishment . 179
8.2.2 Reconfiguration procedures . 179
8.2.2.1 General . 181
8.2.2.2 Initiation . 182
8.2.2.2a Initiation of handover from GERAN Iu mode . 183
8.2.2.3 Reception of RADIO BEARER SETUP or RADIO BEARER RECONFIGURATION or
RADIO BEARER RELEASE or TRANSPORT CHANNEL RECONFIGURATION or
PHYSICAL CHANNEL RECONFIGURATION message, TTI switch HS-SCCH order or
Target cell HS-SCCH order by the UE . 184
8.2.2.3a Reception of RADIO BEARER RECONFIGURATION message by the UE performing
handover from GERAN Iu mode . 204
8.2.2.4 Transmission of a response message by the UE, normal case . 205
8.2.2.5 Reception of a response message by the UTRAN, normal case. 208
8.2.2.5a Rejection by the UE . 209
8.2.2.6 Unsupported configuration in the UE . 209
8.2.2.7 Physical channel failure . 210
8.2.2.8 Cell re-selection . 211
8.2.2.9 Transmission of a response message by the UE, failure case . 211
8.2.2.10 Reception of a response message by the UTRAN, failure case . 212
8.2.2.11 Invalid configuration . 212
8.2.2.12 Incompatible simultaneous reconfiguration . 212
8.2.2.12a Incompatible simultaneous security reconfiguration . 213
8.2.2.12b Cell update procedure during security reconfiguration . 213
8.2.2.13 Invalid received message . 214
8.2.2.14 Radio link failure . 214
8.2.3 Radio bearer release . 215
8.2.4 Transport channel reconfiguration . 215
8.2.5 Transport format combination control . 216
8.2.5.1 General . 216
8.2.5.2 Initiation . 216
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3GPP TS 25.331 version 17.1.0 Release 17 7 ETSI TS 125 331 V17.1.0 (2022-08)
8.2.5.3 Reception of a TRANSPORT FORMAT COMBINATION CONTROL message by the UE . 216
8.2.5.4 Invalid configuration . 218
8.2.5.5 Invalid TRANSPORT FORMAT COMBINATION CONTROL message . 219
8.2.6 Physical channel reconfiguration . 219
8.2.7 Physical Shared Channel Allocation [TDD only] . 220
8.2.7.1 General . 220
8.2.7.2 Initiation . 220
8.2.7.3 Reception of a PHYSICAL SHARED CHANNEL ALLOCATION message by the UE . 220
8.2.7.4 Invalid PHYSICAL SHARED CHANNEL ALLOCATION message . 222
8.2.8 PUSCH capacity request [TDD only] . 223
8.2.8.1 General . 223
8.2.8.2 Initiation . 223
8.2.8.3 PUSCH CAPACITY REQUEST message contents to set . 224
8.2.8.4 Reception of a PUSCH CAPACITY REQUEST message by the UTRAN . 225
8.2.8.5 T310 expiry . 225
8.2.9 Void . 225
8.2.10 Uplink Physical Channel Control [TDD only]. 225
8.2.10.1 General . 225
8.2.10.2 Initiation . 225
8.2.10.3 Reception of UPLINK PHYSICAL CHANNEL CONTROL message by the UE . 225
8.2.10.4 Invalid UPLINK PHYSICAL CHANNEL CONTROL message . 226
8.2.11 Physical channel reconfiguration failure. 226
8.2.11.1 General .
...