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TR 28.846
Study on Charging aspects of Satellite Access Phase 3

3GPP‑Page   fToC↓   Partial Content →
V19.1.0 (Wzip)  2025/06  42 p.
Rapporteur:
Miss Liu, Yingying
CICT

full Table of Contents for  TR 28.846  Word version:  19.1.0

each clause number in 'red' refers to the equivalent title in the Partial Content
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1Scope  p. 7
2References  p. 7
3Definitions of terms, symbols and abbreviations  p. 8
3.1Terms  p. 8
3.2Symbols  p. 8
3.3Abbreviations  p. 8
4Background  p. 8
4.1General  p. 8
4.2Regenerative-based satellite access  p. 8
4.3Store and Forward Satellite operation  p. 9
4.4UEs- SAT- UEs communications on satellite  p. 9
4.5Roaming aspects of Satellite access  p. 11
5Business roles and business scenarios  p. 11
5.1Business roles  p. 11
5.2Business scenarios  p. 12
5.2.1S&F operation  p. 12
5.2.2Roaming between MNOs with and without satellite networks  p. 12
5.2.35G satellite backhaul without UPF on-board  p. 12
5.2.45G satellite backhaul with UPF on-board  p. 12
5.2.5MVNO which provide satellite communication services  p. 12
5.2.6Business scenarios for UE-satellite-UE communication  p. 13
6Charging scenarios and key issues  p. 13
6.1Topic 1: Charging scenarios for store and forward satellite operation  p. 13
6.1.1Use cases  p. 13
6.1.1.1Use Case #1.1: MNO charges SCC  p. 13
6.1.1.2Use Case #1.2: MNO charged by SSP  p. 13
6.1.2Potential charging requirements  p. 14
6.1.3Key issues  p. 14
6.1.3.1Key issue #1.1: Charging events and charging information required  p. 14
6.1.3.2Key issue #1.2: NF/Service suitable to provide charging information  p. 14
6.1.4Possible solutions  p. 14
6.1.4.1Solution #1.1: MME Charging Trigger Function (CTF) based solution for S&F operation charging of SMS service  p. 14
6.1.4.2Solution #1.2: MME Charging Trigger Function (CTF) based solution for S&F operation charging with Control Plane CIoT  p. 16
6.1.4.3Solution #1.3: MME CDF/CGF based solution for S&F operation charging with User Plane CIoT  p. 19
6.1.4.4Solution #1.4: MME CDF/CGF based solution for S&F operation of SMS service  p. 20
6.1.4.5Solution #1.5: MME CDF/CGF based solution for S&F operation with CP data transfer  p. 21
6.1.4.6Solution #1.6: SCEF CDF/CGF based solution for S&F with CP data transfer  p. 23
6.1.4.7Solution #1.7: TDF Charging Trigger Function (CTF) based solution for S&F operation charging with User Plane CIoT  p. 25
6.1.5Evaluation  p. 26
6.1.5.1Solutions evaluation for Key issue #1.1  p. 26
6.1.5.2Solutions evaluation for Key issue #1.2  p. 27
6.1.6Conclusion  p. 27
6.2Topic 2: Roaming charging of satellite access  p. 28
6.2.1Use cases  p. 28
6.2.1.1Use Case #2.1: MNO's subscriber roams to MNO with satellite network  p. 28
6.2.1.2Use Case #2.2: MNO's SSC subscriber roams to MNO  p. 28
6.2.2Potential charging requirements  p. 28
6.2.3Key issues  p. 29
6.2.3.1Key issue #2.1: Charging procedure for satellite roaming  p. 29
6.2.4Possible solutions  p. 29
6.2.4.1Solution #2.1: Roaming architecture for satellite roaming case  p. 29
6.2.4.1.1General description  p. 29
6.2.4.1.2Architecture description  p. 29
6.2.4.1.3Procedures description  p. 30
6.2.5Evaluation  p. 30
6.2.5.1Solutions evaluation for Key issue #2.1  p. 30
6.2.6Conclusion  p. 31
6.3Topic 3: Charging for satellite resource usage between SSP and MNO  p. 31
6.3.1Use cases  p. 31
6.3.1.1Use Case #1.1: SSP charging MNO for satellite used for backhaul  p. 31
6.3.1.2Use Case #1.2: SSP charging MNO for edge computing via UPF deployed on the satellite  p. 31
6.3.2Potential charging requirements  p. 31
6.3.3Key issues  p. 31
6.3.3.1Key issue #3.1: Charging information required  p. 31
6.3.3.2Key issue #3.2: Charging architecture and procedure  p. 31
6.3.4Possible solutions  p. 32
6.3.4.1Solution #3.1: CDR in MNO for SSP to perform wholesale to MNO  p. 32
6.3.4.1.1General description  p. 32
6.3.4.1.2Architecture description  p. 32
6.3.4.1.3Procedures description  p. 32
6.3.5Evaluation  p. 33
6.3.6Conclusion  p. 33
6.4Topic 4: Charging scenarios for UE-satellite-UE communication  p. 33
6.4.1Use cases  p. 33
6.4.1.1Use Case #4.1: MNO charges SCC  p. 33
6.4.1.2Use Case #4.2: MNO charged by SSP  p. 33
6.4.2Potential charging requirements  p. 33
6.4.3Key issues  p. 34
6.4.3.1Key issue #4.1: Charging events and charging information required  p. 34
6.4.4Possible solutions  p. 34
6.4.4.1Solution #4.1: IMS-GWF Charging Trigger Function (CTF) based solution for UE-SAT-UE communication  p. 34
6.4.4.2Solution #4.2: IMS based charging for UE-Sat-UE communication  p. 37
6.4.5Evaluation  p. 37
6.4.5.1Solutions evaluation for Key issue #4.1  p. 37
6.4.6Conclusion  p. 37
6.5Topic 5: Charging scenarios for MVNO which provide satellite communication services  p. 37
6.5.1Use cases  p. 37
6.5.1.1Use Case #5.1: MVNO charges SCC  p. 37
6.5.1.2Use Case #5.2: MVNO charged by MNO  p. 38
6.5.2Potential charging requirements  p. 38
6.5.3Key issues  p. 38
6.5.3.1Key issue #5.1: Charging information, architecture and procedure  p. 38
6.5.4Possible solutions  p. 38
6.5.4.1Solution #5.1: MNO performs wholesale charging and MVNO performs retail charging  p. 38
6.5.4.1.1General description  p. 38
6.5.4.1.2Architecture description  p. 38
6.5.4.1.3Procedures description  p. 40
6.5.5Evaluation  p. 40
6.5.6Conclusion  p. 40
7Conclusions and Recommendations  p. 40
$Change history  p. 41

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