| 7.1 | Usage of SEAL services p. 24
| 7.1.1 | General p. 24
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| 7.1.2 | Group management service p. 25
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| 7.1.3 | Location management service p. 26
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| 7.1.4 | Network resource management service p. 28
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| 7.1.5 | Network slice capability exposure service |R19| p. 29
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| 7.1a | UAE layer registration p. 30
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| 7.2 | Communications between UAVs within a geographical area p. 34
| 7.2.1 | General p. 34
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| 7.2.2 | Procedures p. 34
| 7.2.2.1 | Communications between UAVs within a geographical area using unicast Uu p. 34
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| 7.2.3 | Information flows p. 34
| 7.2.3.1 | UAV application message p. 34
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| 7.3 | UAV and UAV-C Pairing and C2 QoS Provisioning using Group ID p. 35
| 7.3.1 | General p. 35
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| 7.3.2 | Procedures p. 35
| 7.3.2.1 | Procedure for group creation for one pair of UAV and UAV-C p. 35
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| 7.3.2.2 | Procedure for group-based approach for C2 QoS provisioning p. 36
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| 7.3.2.3 | Procedure for group update p. 36
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| 7.3.3 | Information flows p. 37
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| 7.4 | C2 Communication mode selection and switching p. 37
| 7.4.1 | General p. 37
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| 7.4.2 | Procedures p. 38
| 7.4.2.1 | Management of C2 mode selection / switching capability p. 38
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| 7.4.2.2 | C2 communication modes configuration p. 38
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| 7.4.2.3 | C2 communication mode selection by UAE Client p. 39
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| 7.4.2.4 | UAE-layer assisted dynamic C2 mode switching p. 40
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| 7.4.2.5 | UAS application specific server triggered C2 communication mode switching p. 42
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| 7.4.3 | Information flows p. 42
| 7.4.3.1 | C2 operation mode management request p. 42
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| 7.4.3.2 | C2 operation mode management response p. 44
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| 7.4.3.3 | C2 operation mode management complete p. 44
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| 7.4.3.4 | C2-related trigger event report p. 44
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| 7.4.3.5 | C2 mode switching confirmation request p. 45
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| 7.4.3.6 | C2 mode switching confirmation response p. 45
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| 7.4.3.7 | C2 operation mode switching p. 46
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| 7.4.3.8 | C2 communication modes configuration request p. 46
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| 7.4.3.9 | C2 communication modes configuration response p. 48
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| 7.4.3.10 | C2 communication mode notification p. 48
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| 7.4.3.11 | C2 communication mode notification acknowledgement p. 48
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| 7.4.3.12 | C2 operation mode switching performed p. 49
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| 7.5 | Real-Time UAV Connection Status Monitoring and Location reporting p. 49
| 7.5.1 | General p. 49
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| 7.5.2 | Procedures p. 49
| 7.5.2.1 | Procedure for real-time UAV network connection status monitoring and location update p. 49
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| 7.5.2.2 | Subscription for real-time UAV status information p. 50
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| 7.5.2.3 | Notification of real-time UAV status information p. 50
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| 7.5.2.4 | Unsubscription for real-time UAV status information p. 51
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| 7.5.3 | Information flows p. 51
| 7.5.3.1 | Information flows between UAE server and SEAL servers p. 51
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| 7.5.3.2 | Subscribe real-time UAV status information request p. 51
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| 7.5.3.3 | Subscribe real-time UAV status information response p. 52
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| 7.5.3.4 | Notify real-time UAV status information p. 52
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| 7.5.3.5 | Unsubscribe real-time UAV status information request p. 52
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| 7.5.3.6 | Unsubscribe real-time UAV status information response p. 52
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| 7.6 | Change of USS during flight |R18| p. 53
| 7.6.1 | General p. 53
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| 7.6.2 | Procedures p. 53
| 7.6.2.1 | Management of multi-USS configuration p. 53
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| 7.6.2.2 | Multi-USS configuration p. 54
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| 7.6.2.3 | UAE layer assisted change of USS p. 54
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| 7.6.2.4 | UAE client assisted change of USS p. 55
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| 7.6.2.5 | UAE server triggered change of USS p. 56
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| 7.6.3 | Information flows p. 57
| 7.6.3.1 | Multi-USS management request p. 57
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| 7.6.3.2 | Multi-USS management response p. 58
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| 7.6.3.3 | Multi-USS management complete p. 58
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| 7.6.3.4 | Multi-USS configuration request p. 59
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| 7.6.3.5 | Multi-USS configuration response p. 59
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| 7.6.3.6 | USS change request p. 59
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| 7.6.3.7 | USS change response p. 60
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| 7.6.3.8 | USS change notification p. 60
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| 7.6.3.9 | USS change trigger notify p. 60
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| 7.7 | UAE layer support for DAA services and applications |R18| p. 61
| 7.7.1 | General p. 61
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| 7.7.2 | Procedures p. 61
| 7.7.2.1 | Configuration of DAA policies to the UAE layer and the UAS client p. 61
| 7.7.2.1.1 | Management of DAA support configuration p. 61
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| 7.7.2.1.2 | DAA support configuration procedure p. 62
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| 7.7.2.2 | UAE layer support for DAA applications p. 63
| 7.7.2.2.1 | DAA support involving UAVs with U2X support p. 63
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| 7.7.2.2.2 | DAA support involving UAVs without U2X support p. 63
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| 7.7.3 | Information flows p. 64
| 7.7.3.1 | DAA support management request p. 64
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| 7.7.3.2 | DAA support management response p. 65
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| 7.7.3.3 | DAA support management complete p. 65
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| 7.7.3.4 | DAA support configuration request p. 65
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| 7.7.3.5 | DAA support configuration response p. 66
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| 7.7.3.6 | DAA client event information p. 66
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| 7.7.3.7 | DAA client event information acknowledge p. 67
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| 7.7.3.8 | DAA server event information p. 67
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| 7.7.3.9 | DAA server event information acknowledge p. 68
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| 7.8 | Tracking dynamic UAVs in an application defined area relative to a host UAV |R18| p. 68
| 7.8.1 | General p. 68
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| 7.8.2 | Procedures p. 69
| 7.8.2.1 | Subscription for host UAV dynamic information p. 69
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| 7.8.2.2 | Management of dynamic UE location based group p. 69
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| 7.8.2.3 | Obtaining dynamic information of the UEs in application defined proximity range p. 71
| 7.8.2.3.1 | Subscription procedure within UAS operator p. 71
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| 7.8.2.3.2 | Subscription procedure across UAS operators p. 71
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| 7.8.2.3.3 | Notification procedure p. 72
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| 7.8.2.4 | Notification of host UAV dynamic information p. 72
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| 7.8.2.5 | Unsubscription for host UAV dynamic information p. 73
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| 7.8.3 | Information flows p. 73
| 7.8.3.1 | Subscribe host UAV dynamic information request p. 73
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| 7.8.3.2 | Subscribe host UAV dynamic information response p. 73
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| 7.8.3.3 | Notify Host UAV dynamic information p. 74
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| 7.8.3.4 | Notification of dynamic information p. 74
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| 7.8.3.5 | Unsubscribe host UAV dynamic information request p. 74
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| 7.8.3.6 | Unsubscribe host UAV dynamic information response p. 74
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| 7.9 | Support of real time UAV flight path monitoring assistance |R19| p. 75
| 7.9.1 | General p. 75
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| 7.9.2 | Procedures p. 75
| 7.9.2.1 | Real time UAV flight path monitoring assistance procedure p. 75
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| 7.9.2.2 | Real time flight path monitoring assistance configuration of UAE Client p. 76
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| 7.9.2.3 | Real time flight path reporting procedure p. 76
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| 7.9.3 | Information flows p. 77
| 7.9.3.1 | Flight path reporting configuration request p. 77
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| 7.9.3.2 | Flight path reporting configuration response p. 79
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| 7.9.3.3 | Flight path reporting configuration complete p. 79
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| 7.9.3.4 | Flight path reporting client configuration request p. 79
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| 7.9.3.5 | Flight path reporting client configuration response p. 80
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| 7.9.3.6 | Flight path event report p. 81
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| 7.9.3.7 | Flight path event report notification p. 81
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| 7.10 | UAS provided flight routes |R19| p. 82
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| 7.11 | UAE layer support for NTZ |R19| p. 83
| 7.11.1 | General p. 83
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| 7.11.2 | Procedures p. 83
| 7.11.2.1 | Management of NTZ support configuration p. 83
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| 7.11.2.2 | NTZ configuration p. 84
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| 7.11.2.3 | NTZ activation by UAE Client p. 85
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| 7.11.2.4 | UAE-layer/SEAL/LMS assisted NTZ enforcement p. 86
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| 7.11.2.5 | New USS NTZ policy p. 87
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| 7.11.3 | Information flows p. 87
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