ETSI TS 124 008 V15.8.0 (2020-01)

Digital cellular telecommunications system (Phase 2+) (GSM); Universal Mobile Telecommunications System (UMTS); LTE; 5G; Mobile radio interface Layer 3 specification; Core network protocols; Stage 3 (3GPP TS 24.008 version 15.8.0 Release 15)

RTS/TSGC-0124008vf80

General Information

• Status: Published
• Publication Date: 14-Jan-2020
• Technical Committee: 3GPP CT 1 - MM/CC/SM [lu] (formely CN1)
• Current Stage: 12 - Completion
• Completion Date: 15-Jan-2020

Standards Content (Sample)

ETSI TS 124 008 V15.8.0 (2020-01)






TECHNICAL SPECIFICATION
Digital cellular telecommunications system (Phase 2+) (GSM);
Universal Mobile Telecommunications System (UMTS);
LTE;
5G;
Mobile radio interface Layer 3 specification;
Core network protocols;
Stage 3
(3GPP TS 24.008 version 15.8.0 Release 15)

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3GPP TS 24.008 version 15.8.0 Release 15 1 ETSI TS 124 008 V15.8.0 (2020-01)



Reference
RTS/TSGC-0124008vf80
Keywords
5G,GSM,LTE,UMTS
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3GPP TS 24.008 version 15.8.0 Release 15 2 ETSI TS 124 008 V15.8.0 (2020-01)
Intellectual Property Rights
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Legal Notice
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ETSI

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3GPP TS 24.008 version 15.8.0 Release 15 3 ETSI TS 124 008 V15.8.0 (2020-01)
Contents
Intellectual Property Rights . 2
Legal Notice . 2
Modal verbs terminology . 2
Foreword . 28
Introduction . 28
1 Scope . 29
1.1 Scope of the Technical Specification . 29
1.2 Application to the interface structures . 29
1.3 Structure of layer 3 procedures . 29
1.4 Test procedures . 30
1.5 Use of logical channels in A/Gb mode . 30
1.6 Overview of control procedures . 30
1.6.1 List of procedures . 30
1.7 Applicability of implementations . 32
1.7.1 Voice Group Call Service (VGCS) and Voice Broadcast Service (VBS). 32
1.7.2 General Packet Radio Service (GPRS) . 32
1.7.2.1 Packet services in GSM (A/Gb mode only) . 32
1.7.2.2 Packet services in Iu mode (Iu mode only) . 33
1.8 Handling of NAS signalling low priority indication . 33
1.9 Restrictions . 34
2 References . 34
2.1 Definitions and abbreviations . 41
2.1.1 Random values . 41
2.1.2 Vocabulary . 41
3 Radio Resource management procedures . 47
4 Elementary procedures for Mobility Management . 47
4.1 General . 47
4.1.1 MM and GMM procedures . 47
4.1.1.1 Types of MM and GMM procedures . 47
4.1.1.1.1 Integrity Checking of Signalling Messages in the Mobile Station (Iu mode only) . 49
4.1.1.1.1a Integrity protection for emergency call (Iu mode only) . 51
4.1.1.2 MM-GMM co-ordination for GPRS MS's . 51
4.1.1.2.1 GPRS MS operating in mode A or B in a network that operates in mode I . 51
4.1.1.2.2 GPRS MS operating in mode A or B in a network that operates in mode II . 52
4.1.1.2A Coordination between GMM and EMM . 53
4.1.1.3 Core Network System Information for MM (Iu mode only) . 53
4.1.1.4 Core Network System Information for GMM (Iu mode only) . 53
4.1.1.4.1 General . 53
4.1.1.4.2 Control of Network Mode of Operation I . 53
4.1.1.5 Access class control . 54
4.1.1.6 Specific requirements for MS configured to use timer T3245 . 54
4.1.1.6A Specific requirements for the MS when receiving non-integrity protected reject messages . 55
4.1.1.7 Handling of NAS level mobility management congestion control . 60
4.1.1.8 Handling of security related parameters at switch on and switch off . 61
4.1.1.9 Equivalent PLMNs list . 62
4.1.1.10 Dedicated core network . 62
4.1.2 MM sublayer states . 62
4.1.2.1 MM sublayer states in the mobile station . 62
4.1.2.1.1 Main states . 62
4.1.2.1.2 Substates of the MM IDLE state . 66
4.1.2.2 The update Status . 68
4.1.2.3 MM sublayer states on the network side . 68
4.1.3 GPRS mobility management (GMM) sublayer states . 70
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3GPP TS 24.008 version 15.8.0 Release 15 4 ETSI TS 124 008 V15.8.0 (2020-01)
4.1.3.1 GMM states in the MS . 70
4.1.3.1.1 Main states . 70
4.1.3.1.2 Substates of state GMM-DEREGISTERED. 71
4.1.3.1.3 Substates of state GMM-REGISTERED . 71
4.1.3.2 GPRS update status . 74
4.1.3.3 GMM mobility management states on the network side . 74
4.1.3.3.1 Main States . 75
4.1.3.3.2 Substates of state GMM-REGISTERED . 75
4.2 Behaviour of the MS in MM Idle state, GMM-DEREGISTERED state and GMM-REGISTERED state . 76
4.2.1 Primary Service State selection . 76
4.2.1.1 Selection of the Service State after Power On. 76
4.2.1.2 Other Cases . 77
4.2.2 Detailed Description of the MS behaviour in MM IDLE State. . 77
4.2.2.1 Service State, NORMAL SERVICE . 77
4.2.2.2 Service State, ATTEMPTING TO UPDATE . 78
4.2.2.3 Service State, LIMITED SERVICE . 78
4.2.2.4 Service State, NO IMSI . 79
4.2.2.5 Service State, SEARCH FOR PLMN, NORMAL SERVICE . 79
4.2.2.6 Service State, SEARCH FOR PLMN . 80
4.2.2.7 Service State, RECEIVING GROUP CALL (NORMAL SERVICE) . 80
4.2.2.8 Service State, RECEIVING GROUP CALL (LIMITED SERVICE) . 80
4.2.2.9 Service State, eCALL INACTIVE . 81
4.2.3 Service state when back to state MM IDLE from another state . 81
4.2.4 Behaviour in state GMM-DEREGISTERED. 82
4.2.4.1 Primary substate selection . 82
4.2.4.1.1 Selection of the substate after power on or enabling the MS's GPRS capability . 82
4.2.4.1.2 Other Cases . 83
4.2.4.2 Detailed description of the MS behaviour in state GMM-DEREGISTERED . 83
4.2.4.2.1 Substate, NORMAL-SERVICE . 83
4.2.4.2.2 Substate, ATTEMPTING-TO-ATTACH . 83
4.2.4.2.3 Substate, LIMITED-SERVICE . 84
4.2.4.2.4 Substate, NO-IMSI . 84
4.2.4.2.5 Substate, NO-CELL . 84
4.2.4.2.6 Substate, PLMN-SEARCH . 84
4.2.4.2.7 Substate, ATTACH-NEEDED . 84
4.2.4.2.8 Substate, SUSPENDED (A/Gb mode only) . 84
4.2.4.3 Substate when back to state GMM-DEREGISTERED from another GMM state . 84
4.2.5 Behaviour in state GMM-REGISTERED . 85
4.2.5.1 Detailed description of the MS behaviour in state GMM-REGISTERED . 85
4.2.5.1.1 Substate, NORMAL-SERVICE . 85
4.2.5.1.2 Substate, SUSPENDED (A/Gb mode only) . 85
4.2.5.1.3 Substate, UPDATE-NEEDED . 86
4.2.5.1.4 Substate, ATTEMPTING-TO-UPDATE . 86
4.2.5.1.5 Substate, NO-CELL-AVAILABLE . 86
4.2.5.1.6 Substate, LIMITED-SERVICE . 87
4.2.5.1.7 Substate, ATTEMPTING-TO-UPDATE-MM . 87
4.2.5.1.8 Substate, PLMN-SEARCH . 87
4.3 MM common procedures . 87
4.3.1 TMSI reallocation procedure . 87
4.3.1.0 General . 87
4.3.1.1 TMSI reallocation initiation by the network . 88
4.3.1.2 TMSI reallocation completion by the mobile station . 88
4.3.1.3 TMSI reallocation completion in the network. 88
4.3.1.4 Abnormal cases in the mobile station. 88
4.3.1.5 Abnormal cases on the network side . 89
4.3.2 Authentication procedure . 89
4.3.2a Authentication procedure used for a UMTS authentication challenge . 89
4.3.2b Authentication Procedure used for a GSM authentication challenge . 90
4.3.2.1 Authentication request by the network . 90
4.3.2.2 Authentication response by the mobile station . 90
4.3.2.3 Authentication processing in the network . 91
4.3.2.3a 128-bit circuit-switched GSM ciphering key . 91
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3GPP TS 24.008 version 15.8.0 Release 15 5 ETSI TS 124 008 V15.8.0 (2020-01)
4.3.2.4 Ciphering key sequence number . 91
4.3.2.5 Authentication not accepted by the network . 92
4.3.2.5.1 Authentication not accepted by the MS . 93
4.3.2.6 Abnormal cases . 93
4.3.2.6.1 MS behaviour towards a network that has failed the authentication procedure. 96
4.3.2.7 Handling of keys at intersystem change from Iu mode to A/Gb mode . 96
4.3.2.7a Use of established security contexts . 97
4.3.2.8 Handling of keys at intersystem change from A/Gb mode to Iu mode . 98
4.3.2.9 Void. 99
4.3.2.10 Derivation of keys at SRVCC or vSRVCC handover from S1 mode . 99
4.3.2.10.0 General . 99
4.3.2.10.1 PDN connection with integrity protection . 99
4.3.2.10.2 PDN connection without integrity protection . 99
4.3.2.11 Derivation of keys at SRVCC handover from Iu mode to Iu mode . 99
4.3.2.11.1 PDN connection with integrity protection . 99
4.3.2.11.2 PDN connection without integrity protection . 100
4.3.2.12 Derivation of keys at SRVCC handover from Iu mode to A/Gb mode . 101
4.3.2.12.1 PDN connection with integrity protection . 101
4.3.2.12.2 PDN connection without integrity protection . 102
4.3.2.13 Derivation of keys at CS to PS SRVCC handover from A/Gb mode to Iu mode . 102
4.3.3 Identification procedure . 104
4.3.3.0 General . 104
4.3.3.1 Identity request by the network . 104
4.3.3.2 Identification response by the mobile station . 104
4.3.3.3 Abnormal cases in the mobile station. 104
4.3.3.4 Abnormal cases on the network side . 104
4.3.4 IMSI detach procedure . 105
4.3.4.0 General . 105
4.3.4.1 IMSI detach initiation by the mobile station . 105
4.3.4.2 IMSI detach procedure in the network . 106
4.3.4.3 IMSI detach completion by the mobile station. 106
4.3.4.4 Abnormal cases . 106
4.3.5 Abort procedure . 106
4.3.5.1 Abort procedure initiation by the network . 106
4.3.5.2 Abort procedure in the mobile station . 107
4.3.6 MM information procedure. 107
4.3.6.1 MM information procedure initiation by the network . 107
4.3.6.2 MM information procedure in the mobile station . 107
4.4 MM specific procedures . 107
4.4.1 Location updating procedure . 108
4.4.2 Periodic updating . 109
4.4.3 IMSI attach procedure . 110
4.4.4 Generic Location Updating procedure . 111
4.4.4.1 Location updating initiation by the mobile station . 111
4.4.4.1a Network Request for Additional mobile station Capability Information . 111
4.4.4.2 Identification request from the network . 111
4.4.4.3 Authentication by the network . 111
4.4.4.4 Security mode setting by the network . 112
4.4.4.5 Location Update Attempt Counter . 112
4.4.4.6 Location updating accepted by the network . 112
4.4.4.7 Location updating not accepted by the network . 114
4.4.4.8 Release of RR connection after location updating . 116
4.4.4.9 Abnormal cases on the mobile station side . 116
4.4.4.10 Abnormal cases on the network side .
...