Content for TR 23.791 Word version: 16.2.0
6 Solutions p. 27
6.1 Solution 1: Network Data Analytics Feedback p. 27
6.1.1 Description p. 27
6.1.1.0 General p. 27
6.1.1.1 Network data analytics Subscribe/Unsubscribe p. 27
6.1.1.2 Network data analytics Request p. 28
6.1.1.3 How a NF requests or subscribes to analytics p. 28
6.1.1.4 How NWDAF provides analytics p. 29
6.1.2 Impacts on Existing Nodes and Functionality p. 30
6.1.3 Solution Evaluation p. 30
6.2 Void
6.3 Solution 3: QoS Profile Provisioning p. 31
6.3.1 Description p. 31
6.3.1.1 Information for the support of QoS Profile Provisioning p. 31
6.3.1.2 Procedure to support QoS Provisioning and Adjustment p. 33
6.3.2 Impacts on Existing Nodes and Functionality p. 34
6.3.3 Solution Evaluation p. 34
6.4 Solution 4: Optimizing registration area management and Service area restriction adjustment based on NWDAF output p. 34
6.4.1 Description p. 34
6.4.1.1 General p. 34
6.4.1.2 Procedures p. 35
6.4.2 Impacts on Existing Nodes and Functionality p. 36
6.4.3 Solution Evaluation p. 36
6.5 Solution 5: Optimization based on paging failure prediction from NWDAF p. 37
6.5.1 Description p. 37
6.5.1.1 General p. 37
6.5.1.2 NWDAF Input Procedure - Paging event report procedure p. 38
6.5.1.3 NWDAF Output Procedure - Optimization based on paging failure prediction p. 39
6.5.2 Impacts on Existing Nodes and Functionality p. 39
6.5.3 Solution Evaluation p. 39
6.6 Solution 6: Data Collection from NFs/AFs using a new service p. 40
6.6.1 Description p. 40
6.6.1.1 Service definition p. 40
6.6.1.2 Subscription parameters p. 40
6.6.1.3 Notifications p. 41
6.6.1.4 Scope of Collectable Data Items p. 41
6.6.1.5 Procedure for Interactions with 5GC NFs for Data Collection Notification from 5GC NFs p. 42
6.6.1.6 Procedure for Interactions with 5GC NFs for Data Collection from 5GC NFs p. 43
6.6.1.7 Procedure Interactions with AFs for Data Collection Notification from AF p. 43
6.6.1.8 Procedure Interactions with AFs for Data Collection Notification from AF p. 44
6.6.1.9 Definition of CDIs in NFs and AFs p. 44
6.6.1.10 Procedure for Interactions with 5GC NFs for update of Data Collection Subscription to 5GC NFs p. 45
6.6.1.11 Procedure Interactions with AFs for update of Data Collection Subscription to AF p. 46
6.6.2 Impacts on Existing Nodes and Functionality p. 46
6.6.3 Solution Evaluation p. 46
6.7 Solution 7: Customizing mobility management based on NWDAF output p. 47
6.7.1 Description p. 47
6.7.2 Impacts on Existing Nodes and Functionality p. 48
6.7.3 Solution Evaluation p. 48
6.8 Solution 8: Performance improvement and supervision of mIoT terminals p. 48
6.8.1 Description p. 48
6.8.1.1 Information for the support of Performance improvement and supervision of mIoT terminals p. 48
6.8.1.2 Procedure for expected UE behavioural information provisioning p. 49
6.8.1.3 Procedure for mIoT terminals misused or hijacked Recognition p. 52
6.8.2 Impacts on Existing Nodes and Functionality p. 53
6.8.3 Solution Evaluation p. 53
6.9 Solution 9: Recommendations produced by NWDAF p. 53
6.9.1 Description p. 53
6.9.1.1 Service principles p. 53
6.9.1.2 Service definition p. 53
6.9.1.3 Recommendations Subscribe/Unsubscribe p. 54
6.9.1.4 Recommendations Request p. 54
6.9.1.5 Contents of subscribe and request operations p. 54
6.9.1.6 Contents of notifications and responses p. 55
6.9.2 Impacts on Existing Nodes and Functionality p. 56
6.9.3 Solution Evaluation p. 56
6.10 Solution 10: <NWDAF assisted Handover decision> p. 56
6.10.1 Description p. 56
6.10.1.1 General p. 56
6.10.1.2 Procedures p. 57
6.10.2 Impacts on Existing Nodes and Functionality p. 58
6.10.3 Solution Evaluation p. 58
6.11 Solution 11: UPF selection based on output from NWDAF p. 58
6.11.1 Description p. 58
6.11.2 Impacts on Existing Nodes and Functionality p. 61
6.11.3 Solution Evaluation p. 61
6.12 Solution 12: Data Collection from OAM using the existing SA WG5 services p. 61
6.12.1 Description p. 61
6.12.2 Impacts on Existing Nodes and Functionality p. 62
6.12.3 Solution Evaluation p. 62
6.13 Solution 13: Metadata exposure to 5GS NF and AF p. 63
6.13.1 Description p. 63
6.13.1.1 Metadata request by 5G NF p. 63
6.13.1.2 Available analytic information request by AF p. 63
6.13.1.3 How 5GS NF/AF request the metadata of the available analytic information p. 64
6.13.1.4 How NWDAF provides the available analytics metadata p. 64
6.13.2 Impacts on Existing Nodes and Functionality p. 64
6.13.3 Solution Evaluation p. 64
6.14 Solution 14: Data Collection from NFs via NF Event Exposure services p. 65
6.14.1 Description p. 65
6.14.1.1 Data Collection via NF/AF Event Exposure p. 65
6.14.1.2 Usage of Current exposure framework by the NWDAF p. 66
6.14.1.3 Collectable Data Item (CDI). p. 67
6.14.1.4 Discovering Collectable Data Item (CDI). p. 67
6.14.2 Impacts on Existing Nodes and Functionality p. 67
6.14.3 Solution Evaluation p. 68
6.15 Solution 15: Providing UE Analytics to the NWDAF via the User Plane p. 68
6.15.1 Description p. 68
6.15.1.1 Principles of the Solution p. 68
6.15.1.2 Requirements of the Header p. 68
6.15.1.3 Activating and Indicating Support for the Solution p. 68
6.15.1.4 Providing Analytic Data to the NWDAF p. 69
6.15.1.5 Privacy and Integrity Protection of the Analytic Data p. 69
6.15.2 Impacts on Existing Nodes and Functionality p. 69
6.15.3 Solution Evaluation p. 70
6.16 Solution 16: Use of UE analytics in the 5GC p. 70
6.16.1 Description p. 70
6.16.2 Impacts on Existing Nodes and Functionality p. 71
6.16.3 Solution Evaluation p. 71
6.17 Solution 17: Trace based solution to collect UE related information in NWDAF p. 71
6.17.1 Description p. 71
6.17.1.1 NWDAF subscribes the trace events to TCE p. 71
6.17.1.2 NWDAF triggers trace procedure p. 72
6.17.2 Impacts on Existing Nodes and Functionality p. 73
6.17.3 Solution Evaluation p. 73
6.18 Solution 18: NWDAF assisting Future Background Data Transfer (BDT) p. 73
6.18.1 Description p. 73
6.18.1.1 Information to support Future Background Data Transfer p. 74
6.18.1.2 Procedure for Future Background Data Transfer p. 74
6.18.2 Impacts on Existing Nodes and Functionality p. 74
6.18.3 Solution Evaluation p. 74
6.19 Solution 19: NWDAF/NWDAF service registration and metadata exposure to NFs p. 74
6.19.1 Description p. 74
6.19.1.1 Registration of NWDAF/NWDAF service into the NRF p. 75
6.19.1.2 NWDAF/NWDAF service discovery p. 75
6.19.2 Impacts on Existing Nodes and Functionality p. 76
6.19.3 Solution Evaluation p. 76
6.20 Solution 20: NWDAF analytics usage for UPF selection p. 76
6.20.1 Description p. 76
6.20.1.1 General p. 76
6.20.1.2 Procedures p. 77
6.20.2 Impacts on Existing Nodes and Functionality p. 78
6.20.3 Solution Evaluation p. 78
6.21 Solution 21: Supervision of IoT devices for risk precaution p. 78
6.21.1 Description p. 78
6.21.1.1 General p. 78
6.21.1.2 Identifying misbehaving UE(s) p. 78
6.21.1.3 Solving the risk brought by misbehaving UE(s) p. 80
6.21.1.4 Procedures p. 80
6.21.2 Impacts on Existing Nodes and Functionality p. 82
6.21.3 Solution Evaluation p. 82
6.22 Solution 22: Optimizing connection management based on NWDAF output p. 83
6.22.1 Description p. 83
6.22.1.1 General p. 83
6.22.1.2 Procedures p. 83
6.22.2 Impacts on Existing Nodes and Functionality p. 84
6.22.3 Solution Evaluation p. 84
6.23 Solution 23: AMF using NWDAF outputs to optimize UE mobility procedures p. 84
6.23.1 Description p. 84
6.23.1.1 General p. 84
6.23.1.2 Procedures p. 85
6.23.2 Impacts on Existing Nodes and Functionality p. 86
6.23.3 Solution Evaluation p. 86
6.24 Solution 24: Analytics Information Exposure to AF p. 86
6.24.1 Description p. 86
6.24.2 Impacts on Existing Nodes and Functionality p. 87
6.24.3 Solution Evaluation p. 87
6.25 Solution 25: Exposure with bulk subscription and NWDAF collecting data from UDR p. 87
6.25.1 Description p. 87
6.25.1.1 General p. 87
6.25.1.2 Procedures p. 88
6.25.2 Impacts on Existing Nodes and Functionality p. 89
6.25.3 Solution Evaluation p. 89
6.26 Solution 26: Data Collection using NRF services p. 89
6.26.1 Description p. 89
6.26.2 Impacts on Existing Nodes and Functionality p. 89
6.26.3 Solution Evaluation p. 90
6.27 Solution 27: NWDAF assisting Determination of Background Data Transfer Policy p. 90
6.27.1 Description p. 90
6.27.1.1 NWDAF Data Collection p. 90
6.27.1.2 NWDAF output p. 91
6.27.2 Impact on Existing Nodes and Functionality p. 91
6.27.3 Solution Evaluation p. 91
6.28 Solution 28: Exposure to AF for Background Data Transfer p. 92
6.28.1 Description p. 92
6.28.2 Impact on Existing Nodes and Functionality p. 93
6.28.3 Solution Evaluation p. 94
6.29 Solution 29: NWDAF assisted MICO mode for mIoT terminals p. 94
6.29.1 Description p. 94
6.29.1.1 MICO mode configuration by AMF p. 94
6.29.1.2 NWDAF assisted MICO mode configuration by AMF p. 95
6.29.2 Impacts on Existing Nodes and Functionality p. 98
6.29.3 Solution Evaluation p. 98
6.30 Solution 30: Network Status in a specific geographic area p. 98
6.30.1 Description p. 98
6.30.1.1 General p. 98
6.30.1.2 Procedures p. 98
6.30.2 Impacts on Existing Nodes and Functionality p. 102
6.30.3 Solution Evaluation p. 102
6.31 Solution 31: Network Status for a specific UE p. 102
6.31.1 Description p. 102
6.31.1.1 General p. 102
6.31.1.2 Procedure for one-time or continuous reporting of network status for a specific UE p. 102
6.31.2 Impacts on Existing Nodes and Functionality p. 105
6.31.3 Solution Evaluation p. 105
6.32 Solution 32: Ensure slice SLA is guaranteed within certain region area p. 105
6.32.1 Description p. 105
6.32.1.1 Information for slice SLA guarantee p. 106
6.32.1.2 Procedure to support slice SLA guarantee with certain region area p. 106
6.32.2 Impacts on Existing Nodes and Functionality p. 107
6.32.3 Solution Evaluation p. 107
6.33 Solution 33: Ensure slice SLA is guaranteed within certain region area p. 107
6.33.1 Description p. 107
6.34 Solution 34: NWDAF collecting analytic information directly from UE p. 110
6.34.1 Description p. 110
6.34.1.1 General p. 110
6.34.1.2 UE sending IDLE related location information directly to the NWDAF p. 110
6.34.1.3 Usage of IDLE related location information by other NFs p. 111
6.34.1.4 Method to provide IDLE related location information to the NWDAF p. 111
6.34.2 Impacts on Existing Nodes and Functionality p. 111
6.34.3 Solution Evaluation p. 111
