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Content for  TR 32.846  Word version:  17.0.0

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6 Charging scenarios and key issues  7 Conclusions and recommendations  $ Change history 

 

6  Charging scenarios and key issues  p. 9

6.1  Scenario 1: 5GS charging for ProSe Direct Discovery  p. 9

6.1.1  General description and assumptions  p. 9

6.1.2  Potential charging requirements  p. 10

6.1.3  Key issues  p. 10

6.1.3.1  Key issue #1.1: Converged charging for ProSe Direct Discovery  p. 10

6.1.4  Possible solutions  p. 11

6.1.4.1  Solution #1.1: ProSe Direct Discovery charging with 5G DDNMF  p. 11

6.1.4.1.1  Consideration for ProSe Direct Discovery charging with 5G DDNMF  p. 11
6.1.4.1.2  Architecture Description  p. 11
6.1.4.1.3  Flow Description  p. 12
6.1.4.1.3.1a  Message flows for ProSe Direct Discovery Request - CTF  p. 12
6.1.4.1.3.1b  Message flows for ProSe Direct Discovery Reporting - CTF  p. 13
6.1.4.1.3.2a  Message flows for ProSe Direct Discovery Request - CEF  p. 14
6.1.4.1.3.2b  Message flows for ProSe Direct Discovery Reporting - CEF  p. 15

6.1.4.2  Solution #1.2: Charging for ProSe Direct Discovery over PC5 reference point  p. 15

6.1.4.2.1  Consideration for ProSe Direct Discovery charging over PC5 reference point  p. 15
6.1.4.2.2  Architecture Description  p. 15
6.1.4.2.3  Flow Description  p. 17
6.1.4.2.3.1  Message flows for ProSe Direct Discovery over PC5 charging CTF  p. 17
6.1.4.2.3.2  Message flows with CEF  p. 17

6.1.5  Evaluation  p. 17

6.1.6  Conclusion  p. 18

6.2  Scenario 2: 5GS charging for ProSe Direct Communication  p. 18

6.2.1  General description and assumptions  p. 18

6.2.2  Potential charging requirements  p. 19

6.2.3  Key issues  p. 19

6.2.3.1  Key issue #2.1: Converged charging for ProSe Direct Communication  p. 19

6.2.4  Possible solutions  p. 19

6.2.4.1  Solution #2.1: ProSe unicast mode of Direct Communication event-based charging for Key issues #2.1  p. 19

6.2.4.1.1  Consideration for ProSe unicast mode of Direct Communication charging  p. 19
6.2.4.1.2  Architecture Description  p. 20
6.2.4.1.3  Flow Description  p. 21
6.2.4.1.3.1  Message flows with CTF - PEC  p. 21
6.2.4.1.3.2  Message flows with CEF - PEC  p. 23

6.2.4.2  Solution #2.2: ProSe unicast mode of Direct Communication session-based charging for Key issues #2.1  p. 24

6.2.4.2.1  Consideration for ProSe unicast mode of Direct Communication session-based charging  p. 24
6.2.4.2.2  Architecture Description  p. 24
6.2.4.2.3  Flow Description  p. 25
6.2.4.2.3.1  Message flows with CTF - SCUR  p. 25
6.2.4.2.3.2  Message flows with CEF  p. 26

6.2.4.3  Solution #2.3: ProSe Broadcast mode of Direct Communication charging for Key issues #2.1  p. 26

6.2.4.3.1  Consideration for Broadcast mode of Direct Communication charging  p. 26
6.2.4.3.2  Architecture Description  p. 27
6.2.4.3.3  Flow Description  p. 27
6.2.4.3.3.1  ProSe broadcast mode of Direct Communication event-based charging - PEC  p. 27
6.2.4.3.3.2  ProSe broadcast mode of Direct Communication session-based charging - SCUR  p. 28

6.2.4.4  Solution #2.4: ProSe Groupcast mode of Direct Communication charging for Key issues #2.1  p. 29

6.2.4.4.1  Consideration for Groupcast mode of Direct Communication charging  p. 29
6.2.4.4.2  Architecture Description  p. 30
6.2.4.4.3  Flow Description  p. 30
6.2.4.4.3.1  ProSe groupcast mode of Direct Communication event-based charging - PEC  p. 30
6.2.4.4.3.2  ProSe groupcast mode of Direct Communication session-based charging - SCUR  p. 30

6.2.4.5  Solution #2.5: ProSe charging for ProSe Direct Communication via UE-to-Network Relay for Key issues #2.2  p. 30

6.2.4.5.1  Consideration for ProSe Direct Communication via UE-to-Network Relay charging  p. 30
6.2.4.5.2  Architecture Description  p. 31
6.2.4.5.3  Flow Description  p. 31
6.2.4.5.3.1  Message flow for ProSe Direct Communication via Layer-3 UE-to-Network Relay  p. 31
6.2.4.5.3.2  Message flow for ProSe Direct Communication via Layer-2 UE-to-Network Relay  p. 33

6.2.5  Evaluation  p. 34

6.2.6  Conclusion  p. 34

6.3  Scenario 3: 5GS charging for ProSe Direct Communication based on QoS flow  p. 34

6.3.1  General description and assumptions  p. 34

6.3.2  Potential charging requirements  p. 35

6.3.3  Key issues  p. 35

6.3.3.1  Key issue #3.1: QoS flow Based Charging for ProSe Direct Communication  p. 35

6.3.4  Possible solutions  p. 35

6.3.4.1  Solution #3.1: QoS flow Based Charging for ProSe Direct Communication for Key issues #3.1  p. 35

6.3.4.1.1  Consideration for ProSe QoS flow Based Charging  p. 35
6.3.4.1.2  Architecture Description  p. 36
6.3.4.1.3  Flow Description  p. 36

6.3.5  Evaluation  p. 36

6.3.6  Conclusion  p. 36

7  Conclusions and recommendations  p. 36

$  Change history  p. 38

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