Content for TS 33.128 Word version: 19.1.0
6 Network Layer Based Interception p. 55
6.1 Introduction p. 55
6.2 5G p. 55
6.2.1 General p. 55
6.2.2 LI at AMF p. 55
6.2.2.1 Provisioning over LI_X1 p. 55
6.2.2.2 Generation of xIRI over LI_X2 p. 56
6.2.2.2.1 General p. 56
6.2.2.2.1A Simple data types for AMF p. 56
6.2.2.2.2 Registration p. 57
6.2.2.2.3 Deregistration p. 59
6.2.2.2.4 Location update p. 60
6.2.2.2.5 Start of interception with registered UE p. 61
6.2.2.2.6 AMF unsuccessful procedure p. 63
6.2.2.2.7 AMF identifier association p. 64
6.2.2.2.8 Positioning info transfer p. 65
6.2.2.2.9 Handovers p. 66
6.2.2.2.10 UE Configuration Update p. 68
6.2.2.2.11 Trace p. 69
6.2.2.2.12 UE policy transfer p. 70
6.2.2.2.13 Service Accept p. 71
6.2.2.2.14 UE context update p. 71
6.2.2.2A Definitions for AMF message Types p. 72
6.2.2.2A.1 Type: InitialRANUEContextSetup p. 72
6.2.2.2A.2 Type: PDUSessionSetupRequestItem p. 73
6.2.2.2A.3 Type: UERadioCapability p. 74
6.2.2.2A.4 Type: UERadioCapabilityForPaging p. 74
6.2.2.2A.5 Type: NRV2XServicesAuthorization p. 74
6.2.2.2A.6 Type: LTEV2XServicesAuthorization p. 75
6.2.2.2A.7 Type: TargetNSSAIInfo p. 75
6.2.2.2A.8 Type: FiveGProSeAuthorizationIndication p. 75
6.2.2.2A.9 Enumeration: IABAuthorizedIndicator p. 76
6.2.2.2A.10 Enumeration: V2XUEAuthorizationIndicator p. 76
6.2.2.2A.11 Enumeration: FiveGProSeAuthorizationIndicator p. 76
6.2.2.2A.12 Type: UEDifferentiationInfo p. 76
6.2.2.2A.13 Enumeration: MobileIABAuthorizedIndicator p. 77
6.2.2.2A.14 Type: NASTransportInitialInformation p. 77
6.2.2.2A.15 Type: RANUEContextModification p. 78
6.2.2.2A.16 Type: RANDownlinkNASTransport p. 79
6.2.2.3 Generation of IRI over LI_HI2 p. 80
6.2.2.4 Identity privacy p. 81
6.2.2A Identifier Reporting for AMF p. 81
6.2.2A.1 Activation of reporting over LI_XEM1 p. 81
6.2.2A.2 Generation of records over LI_XER p. 81
6.2.3 LI for SMF/UPF p. 84
6.2.3.1 Provisioning over LI_X1 p. 84
6.2.3.1.1 General p. 84
6.2.3.1.2 Provisioning of the IRI-POI, IRI-TF and CC-TF in the SMF p. 84
6.2.3.1.3 Provisioning of the MDF2 p. 85
6.2.3.1.4 Provisioning of the MDF3 p. 86
6.2.3.2 Generation of xIRI at IRI-POI in SMF over LI_X2 p. 87
6.2.3.2.1 General p. 87
6.2.3.2.2 PDU session establishment p. 87
6.2.3.2.3 PDU session modification p. 92
6.2.3.2.4 PDU session release p. 96
6.2.3.2.5 Start of interception with an established PDU session p. 97
6.2.3.2.6 SMF unsuccessful procedure p. 99
6.2.3.2.7 MA PDU sessions p. 101
6.2.3.2.7.1 General p. 101
6.2.3.2.7.2 MA PDU session establishment p. 101
6.2.3.2.7.3 MA PDU session modification p. 104
6.2.3.2.7.4 MA PDU session release p. 107
6.2.3.2.7.5 Start of interception with an established MA PDU session p. 108
6.2.3.2.7.6 SMF MA unsuccessful procedure p. 112
6.2.3.2.8 PDU to MA PDU session modification p. 113
6.2.3.3 Triggering of the CC-POI from CC-TF over LI_T3 p. 114
6.2.3.3.1 LI_T3 interface specifics p. 114
6.2.3.3.2 CC interception with multi-homed PDU session p. 116
6.2.3.3.3 CC Interception only at PDU Session Anchor UPFs p. 116
6.2.3.4 IRI-POI in UPF triggering over LI_T2 p. 117
6.2.3.5 Generation of xIRI at UPF over LI_X2 p. 118
6.2.3.5.1 Packet data header reporting p. 118
6.2.3.5.2 Fragmentation p. 118
6.2.3.5.3 Packet Data Header Report (PDHR) p. 118
6.2.3.5.4 Packet Data Summary Report (PDSR) p. 118
6.2.3.6 Generation of xCC at CC-POI in the UPF over LI_X3 p. 118
6.2.3.7 Generation of IRI over LI_HI2 p. 119
6.2.3.8 Generation of CC over LI_HI3 p. 120
6.2.3.9 Packet header information reporting p. 120
6.2.3.9.1 General p. 120
6.2.3.9.2 Provisioning details p. 121
6.2.3.9.3 PDHeaderReport record (deprecated) p. 121
6.2.3.9.4 PDSummaryReport record (deprecated) p. 122
6.2.3.9.5 Usage of the Internet Protocol Packet Reporting record p. 124
6.2.3.10 Sharing LI state information over LI_ST p. 124
6.2.3.10.1 Overview p. 124
6.2.3.10.2 Storing LI state p. 125
6.2.3.10.3 Retrieving LI state p. 125
6.2.3.10.4 Removing LI state p. 126
6.2.4 LI at UDM for 5G p. 126
6.2.4.1 General description p. 126
6.2.5 LI at SMSF p. 126
6.2.5.1 Provisioning over LI_X1 p. 126
6.2.5.2 Generation of xIRI over LI_X2 p. 128
6.2.5.3 SMS Message p. 128
6.2.5.4 Generation of IRI over LI_HI2 p. 131
6.2.6 LI support at NRF p. 132
6.3 4G p. 132
6.3.1 General p. 132
6.3.2 LI at MME p. 132
6.3.2.1 Provisioning over LI_X1 p. 132
6.3.2.2 Generation of xIRI over LI_X2 p. 133
6.3.2.2.1 General p. 133
6.3.2.2.2 MME identifier association p. 134
6.3.2.2.3 Attach p. 134
6.3.2.2.4 Detach p. 136
6.3.2.2.5 Tracking Area/EPS Location update p. 137
6.3.2.2.6 Start of interception with EPS attached UE p. 138
6.3.2.2.7 MME unsuccessful procedure p. 140
6.3.2.2.8 Positioning info transfer p. 140
6.3.2.2.9 Handovers p. 141
6.3.2.2.10 Trace p. 143
6.3.2.2.10.1 General p. 143
6.3.2.2.10.2 MME RAN trace report p. 143
6.3.2.2.11 Service Accept p. 144
6.3.2.2A Definitions for MME message Types p. 145
6.3.2.2A.1 Simple data types p. 145
6.3.2.2A.2 Type: EPSHandoverType p. 145
6.3.2.2A.3 Type: ERABContextList p. 145
6.3.2.2A.4 Type: ERABContext p. 146
6.3.2.2A.5 Type: ERABReleaseList p. 146
6.3.2.2A.6 Type: ERABError p. 146
6.3.2.2A.7 Type: EPSRANCause p. 147
6.3.2.2A.8 Type: EPSHandoverRestrictionList p. 147
6.3.2.2A.9 Type: EPSCSGInfo p. 147
6.3.2.2A.10 Type: EPSProSeAuthorization p. 147
6.3.2.2A.11 Type: EPSSubscriptionBasedUEDifferentiationIndication p. 148
6.3.2.2A.12 Type: S1Information p. 148
6.3.2.2A.13 Type: MMEServedGUMMEIList p. 148
6.3.2.2A.14 Type: MMEServedGUMMEI p. 149
6.3.2.2A.15 Type: EPSNASTransportInitialInformation p. 149
6.3.2.2A.16 Type: BBFTunnelInformation p. 149
6.3.2.2A.17 Type: LTENTNTAIInformation p. 150
6.3.2.2A.18 Type: EPSRANUEContext p. 150
6.3.2.2A.19 Enumeration: EPSCSFallbackIndicator p. 151
6.3.2.3 Generation of IRI over LI_HI2 p. 151
6.3.3 LI at SGW/PGW and ePDG p. 152
6.3.3.0 General p. 152
6.3.3.1 Provisioning over LI_X1 p. 152
6.3.3.1.1 General p. 152
6.3.3.1.2 Non-CUPS Architecture p. 154
6.3.3.1.3 CUPS Architecture p. 154
6.3.3.1.4 Provisioning of the MDF2 p. 155
6.3.3.1.5 Provisioning of the MDF3 p. 155
6.3.3.2 Generation of xIRI over LI_X2 p. 156
6.3.3.2.1 General p. 156
6.3.3.2.2 PDU Session Establishment message reporting PDU session establishment or PDN Connection establishment p. 157
6.3.3.2.3 PDU Session Modification message reporting PDU session modification, PDN Connection modification or inter-system handover p. 161
6.3.3.2.4 PDU Session Release message reporting PDU session release, PDN Connection release p. 165
6.3.3.2.5 SMF Start of Interception with Already Established PDU Session message reporting Start of Interception with Already Established PDU Session or Start of Interception with Already Established PDN Connection p. 166
6.3.3.2.6 MA PDU Session Establishment message reporting MA PDU session establishment or PDN Connection establishment as part of an MA PDU Session p. 167
6.3.3.2.7 MA PDU Session Modification message reporting MA PDU session modification, modification of a PDN Connection associated to MA PDU session or inter-system handover p. 168
6.3.3.2.8 MA PDU Session Release message reporting MA PDU session release or the release of a PDN Connection associated to an MA PDU session p. 168
6.3.3.2.9 SMF Start of Interception with Already Established MA PDU Session message reporting Start of Interception with Already Established MA PDU Session or Start of Interception with Already Established PDN Connection associated to an MA PDU Session p. 169
6.3.3.2A Triggering of the CC-POI from CC-TF over LI_T3 p. 169
6.3.3.3 Generation of xCC at CC-POI in the SGW/PGW and ePDG over LI_X3 p. 170
6.3.3.3.1 Non-CUPS architecture p. 170
6.3.3.3.2 CUPS architecture p. 170
6.3.3.4 Generation of IRI over LI_HI2 p. 170
6.3.3.5 Generation of CC over LI_HI3 p. 170
6.4 3G p. 171
