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Table of Contents for  TS 23.682  Word version:  19.2.0

1Scope  p. 8
2References  p. 8
3Definitions and abbreviations  p. 10
3.1Definitions  p. 10
3.2Abbreviations  p. 10
4Architecture Model and Concepts  p. 11
4.1General Concept  p. 11
4.2Architectural Reference Model  p. 11
4.3Reference points  p. 16
4.3.1General  p. 16
4.3.2List of Reference Points  p. 17
4.3.3Reference Point Requirements  p. 17
4.3.3.1Tsp Reference Point Requirements  p. 17
4.3.3.2T4 Reference Point Requirements  p. 18
4.3.3.3Voidp. …
4.3.3.4S6m Reference Point Requirements  p. 18
4.3.3.5S6n Reference Point Requirements  p. 18
4.3.3.6T6a/T6b Reference Point Requirements |R13|p. 18
4.3.3.7S6t Reference Point Requirements |R13|p. 19
4.3.3.8T6ai/T6bi Reference Point Requirements |R13|p. 19
4.3.3.9T7 Reference Point Requirements |R13|p. 19
4.3.3.10Ns Reference Point Requirements |R13|p. 19
4.3.3.11Nu Reference Point Requirements |R14|p. 19
4.3.3.12T8 Reference Point Requirements |R15|p. 20
4.3.3.13T9a/T9b Reference Point Requirements |R16|p. 20
4.4Network Elements  p. 20
4.4.1General  p. 20
4.4.2MTC-IWF  p. 20
4.4.3HSS/HLR  p. 21
4.4.4GGSN/P-GW  p. 22
4.4.5SGSN/MME/MSC  p. 22
4.4.6SMS-SC |R17|p. 22
4.4.7MTC AAA  p. 23
4.4.8Service Capability Exposure Function |R13|p. 23
4.4.9Interworking SCEF |R13|p. 25
4.4.10RAN Congestion Awareness Function |R13|p. 25
4.4.11Packet Flow Description Function |R14|p. 25
4.4.12UE radio Capabilities Management Function |R16|p. 25
4.5High Level Function  p. 26
4.5.1Device Triggering Function  p. 26
4.5.2PS-only Service Provision  p. 26
4.5.3Core Network assisted RAN parameters tuning |R12|p. 26
4.5.4UE Power Saving Mode |R12|p. 26
4.5.5Group Message Delivery |R13|p. 28
4.5.6Monitoring Events |R13|p. 28
4.5.6.1General  p. 28
4.5.6.2Monitoring Events via HSS and MME/SGSN  p. 29
4.5.6.3Monitoring Events via PCRF  p. 29
4.5.6.4Voidp. …
4.5.7High latency communication |R13|p. 30
4.5.8Support of informing about potential network issues |R13|p. 31
4.5.9Resource management of background data transfer |R13|p. 31
4.5.10E-UTRAN network resource optimizations based on communication patterns provided to the MME |R13|p. 31
4.5.11Support of setting up an AS session with required QoS |R13|p. 32
4.5.12Change the chargeable party at session set-up or during the session |R13|p. 32
4.5.13Extended idle mode DRX |R13|p. 32
4.5.13.1General  p. 32
4.5.13.2Paging for extended idle mode DRX in UTRAN  p. 33
4.5.13.3Paging for extended idle mode DRX in E-UTRAN  p. 34
4.5.13.3.0General  p. 34
4.5.13.3.1Hyper SFN, Paging Hyperframe and Paging Time Window length  p. 34
4.5.13.3.2Loose Hyper SFN synchronization  p. 35
4.5.13.3.3MME paging and paging retransmission strategy  p. 35
4.5.14Non-IP Data Delivery (NIDD) |R13|p. 35
4.5.14.1General |R14|p. 35
4.5.14.2Enhancements for reliable delivery of NIDD |R14|p. 36
4.5.14.3Reliable Data Service |R14|p. 36
4.5.15Support of PFD management via SCEF |R14|p. 37
4.5.16MSISDN-less MO-SMS via T4 |R14|p. 37
4.5.17Enhanced Coverage Restriction Control via SCEF |R14|p. 37
4.5.18MBMS user service for UEs using power saving functions |R14|p. 37
4.5.19Enhancements to Location Services for CIoT |R14|p. 39
4.5.20MBMS user service for NB or M UE categories |R14|p. 39
4.5.21Network Parameter Configuration via SCEF |R15|p. 40
4.5.22RACS information provisioning |R16|p. 40
4.5.23Support of satellite access |R17|p. 40
4.6Identifiers  p. 41
4.6.1General  p. 41
4.6.2External Identifier  p. 41
4.6.3External Group Identifier |R14|p. 41
4.7Addressing  p. 41
4.8Security Aspects  p. 42
4.8.1Security Requirements  p. 42
4.8.1.0General |R12|p. 42
4.8.1.1Voidp. …
4.8.1.2Voidp. …
4.9SCEF - SCS/AS API Procedures |R15|p. 42
4.9.1General  p. 42
4.9.2Common Parameters  p. 42
4.10Charging Principles |R15|p. 42
5Functional Description and Information Flow  p. 43
5.1Control and user plane  p. 43
5.1.1Control Plane  p. 43
5.1.1.1HSS - MTC-IWF  p. 43
5.2Device triggering procedures  p. 44
5.2.1Device triggering procedure over Tsp  p. 44
5.2.2Trigger Delivery using T4  p. 45
5.2.3Device triggering recall/replace procedures |R12|p. 46
5.2.3.1Device trigger recall/replace procedure over Tsp  p. 46
5.2.3.2Replace procedure for trigger delivery using T4  p. 48
5.2.3.3Recall procedure for trigger delivery using T4  p. 49
5.3Information Storage  p. 50
5.3.0General |R13|p. 50
5.3.1Trigger Information in SMS-SC (Triggering with T4)  p. 50
5.3.2SCEF |R13|p. 50
5.4Security Procedures  p. 51
5.4.0General |R12|p. 51
5.4.1Voidp. …
5.4.2Voidp. …
5.5Group message delivery procedures |R13|p. 52
5.5.1Group message delivery using MBMS  p. 52
5.5.2Modification of previously submitted Group message |R15|p. 55
5.5.3Group Message Delivery via unicast MT NIDD |R15|p. 56
5.6Monitoring Procedures |R13|p. 57
5.6.0Common Parameters |R15|p. 57
5.6.1Monitoring Event configuration and deletion via HSS  p. 58
5.6.1.1Configuration Procedure  p. 58
5.6.1.2Voidp. …
5.6.1.3Specific Parameters for Monitoring Event: Loss of connectivity  p. 62
5.6.1.4Specific Parameters for Monitoring Event: UE reachability  p. 64
5.6.1.5Specific Parameters for Monitoring Event: Location Reporting  p. 66
5.6.1.6Specific Parameters for Monitoring Event: Change of IMSI-IMEI(SV) Association  p. 67
5.6.1.7Specific Parameters for Monitoring Event: Roaming Status  p. 67
5.6.1.8Specific Parameters for Monitoring Event: Communication failure  p. 68
5.6.1.9Specific Parameters for Monitoring Event: Availability after DDN Failure  p. 68
5.6.1.10Specific Parameters for Monitoring Event: PDN Connectivity Status |R16|p. 68
5.6.1.11Specific Parameters for Store and Forward Satellite operation information |R19|p. 69
5.6.2Monitoring Events configuration and deletion directly at the MME/SGSN  p. 69
5.6.2.1Configuration Procedure  p. 69
5.6.2.2Voidp. …
5.6.2.3Specific Steps for Monitoring Event: Number of UEs present in a geographic area  p. 71
5.6.3Reporting of Monitoring Events from the HSS or the MME/SGSN  p. 72
5.6.3.1Reporting Procedure  p. 72
5.6.3.2Reporting Event: Loss of connectivity  p. 73
5.6.3.3Reporting Event: UE reachability  p. 74
5.6.3.4Reporting Event: Location Reporting  p. 74
5.6.3.5Reporting Event: Change of IMSI-IMEISV association  p. 74
5.6.3.6Reporting Event: Roaming Status  p. 74
5.6.3.7Reporting Event: Communication failure  p. 75
5.6.3.8Reporting Event: Availability after DDN failure  p. 75
5.6.3.9Reporting Event: PDN Connectivity Status |R16|p. 75
5.6.3.10Reporting Event: Store and Forward Satellite operation information |R19|p. 75
5.6.4Monitoring events configuration and reporting via PCRF  p. 76
5.6.4.1Request of monitoring event reporting  p. 76
5.6.4.1aRequest of monitoring event reporting for a group of UEs |R14|p. 76
5.6.4.2Common Parameters of the request reporting procedure  p. 78
5.6.4.3Specific Parameters for Monitoring Event: Location Reporting  p. 78
5.6.4.4Specific Parameters for Monitoring Event: Communication Failure  p. 79
5.6.5Reporting of Monitoring Events from the PCRF  p. 79
5.6.6Monitoring Event configuration and deletion via HSS for roaming scenarios using an IWK-SCEF  p. 80
5.6.6.1Configuration Procedure  p. 80
5.6.6.2Voidp. …
5.6.6.3Specific Parameters for Monitoring Event: Loss of connectivity  p. 82
5.6.6.4Specific Parameters for Monitoring Event: UE reachability  p. 82
5.6.6.5Specific Parameters for Monitoring Event: Location Reporting  p. 83
5.6.6.6Specific Parameters for Monitoring Event: Change of IMSI-IMEI(SV) Association  p. 83
5.6.6.7Specific Parameters for Monitoring Event: Roaming Status  p. 83
5.6.6.8Specific Parameters for Monitoring Event: Communication failure  p. 83
5.6.6.9Specific Parameters for Monitoring Event: Availability after DDN Failure  p. 84
5.6.7Monitoring Events configuration and deletion directly at the MME/SGSN for roaming scenarios  p. 84
5.6.8Reporting of Monitoring Events from the HSS or the MME/SGSN for roaming scenarios  p. 84
5.6.8.1Reporting Procedure  p. 84
5.6.8.2Reporting Event: Loss of connectivity  p. 86
5.6.8.3Reporting Event: UE reachability  p. 86
5.6.8.4Reporting Event: Location Reporting  p. 86
5.6.8.5Reporting Event: Change of IMSI-IMEI(SV) association  p. 86
5.6.8.6Reporting Event: Roaming Status  p. 86
5.6.8.7Reporting Event: Communication failure  p. 86
5.6.8.8Reporting Event: Availability after DDN failure  p. 87
5.6.8.9Reporting Event: PDN Connectivity Status |R16|p. 87
5.6.9Network-initiated Explicit Monitoring Event Deletion Procedure |R15|p. 87
5.7High latency communications procedures |R13|p. 88
5.7.1Availability Notification after DDN Failure  p. 88
5.7.1.1General  p. 88
5.7.1.2Event Configuration  p. 88
5.7.1.3Notification  p. 89
5.7.2Notification using Monitoring Event "UE Reachability"  p. 91
5.8Procedure for Informing about Potential Network Issues |R13|p. 91
5.8.1General  p. 91
5.8.2Request procedure for one-time or continuous reporting of network status  p. 92
5.8.3Report procedure for continuous reporting of network status  p. 93
5.8.4Removal procedure for continuous reporting of network status  p. 94
5.9Procedure for resource management of background data transfer |R13|p. 95
5.10Communication Pattern parameters provisioning procedure |R13|p. 97
5.10.1Communication Pattern parameters  p. 97
5.10.2Communication Pattern parameters provisioning to the MME  p. 98
5.11Setting up an AS session with required QoS procedure |R13|p. 99
5.12Change the chargeable party at session set-up or during the session procedure |R13|p. 101
5.12.1Set the chargeable party at session set-up  p. 101
5.12.2Change the chargeable party during the session  p. 102
5.13Non-IP Data Delivery procedures |R13|p. 103
5.13.1T6a/T6b Connection Establishment  p. 103
5.13.1.1General  p. 103
5.13.1.2T6a/T6b Connection Establishment Procedure  p. 103
5.13.2NIDD Configuration  p. 104
5.13.3Mobile Terminated NIDD procedure  p. 106
5.13.4Mobile Originated NIDD procedure  p. 109
5.13.5T6a/T6b Connection Release  p. 110
5.13.5.1General  p. 110
5.13.5.2MME/SGSN Initiated T6a/T6b Connection Release procedure  p. 111
5.13.5.3SCEF Initiated T6a/T6b Connection Release procedure |R14|p. 112
5.13.6Serving node relocation procedure over T6a/T6b  p. 112
5.13.6.1General  p. 112
5.13.6.2Successful TAU/RAU procedure with T6a/T6b  p. 113
5.13.7Voidp. …
5.13.8NIDD Authorisation Update |R14|p. 113
5.14PFD management via SCEF |R14|p. 114
5.14.1Procedure for PFD management via SCEF  p. 114
5.14.2PFD definition  p. 115
5.15Procedure for MSISDN-less MO-SMS via T4 |R14|p. 116
5.16Procedure for Enhanced Coverage Restriction Control via SCEF |R14|p. 117
5.17Procedures for accessing MTC-IWF Functionality via SCEF |R15|p. 118
5.17.1Device triggering procedure via T8  p. 118
5.17.2Device triggering recall/replace procedures via T8  p. 119
5.17.3Procedure for MSISDN-less MO-SMS via T8  p. 120
5.18Procedure for Network Parameter Configuration via SCEF |R15|p. 121
5.19RACS information provisioning procedures |R16|p. 125
5.19.1General  p. 125
5.19.2RACS information provisioning procedures via SCEF  p. 125
5.19.3RACS information provisioning procedures via T9a  p. 126
AMTC Deployment Scenarios  p. 127
BVoidp. …
CTriggering with OMA Push  p. 130
C.1General  p. 130
C.2Triggering flow using Service Loading  p. 130
DDevice triggering using direct model over user plane  p. 132
$Change history  p. 133