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Content for TS 32.254 Word version: 17.3.0

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4.1 High-level Service Exposure Function architecture 4.2 Northbound API offline charging architecture 4.3 Northbound API online charging architecture 4.4 Northbound API converged charging architecture 5.1 Northbound API charging principles 5.2 Northbound API offline charging scenarios 5.3 Northbound API online charging scenarios 5.4 Northbound API converged online and offline charging scenarios 6.1 Data description for Northbound API offline charging 6.2 Data description for Northbound API online charging 6.2a Data description for NEF converged charging 6.3 Northbound API charging specific parameters 6.4 Bindings for Northbound API offline charging 6.5 Bindings for NEF Northbound API converged charging A.1 General B.1 General B.2 Charging Architecture for 5G VN group management charging

4 Architecture considerations p. 9

4.1 High-level Service Exposure Function architecture p. 9

4.2 Northbound API offline charging architecture p. 10

4.3 Northbound API online charging architecture p. 11

4.4 Northbound API converged charging architecture |R16| p. 12

5 Northbound API charging principles and scenarios p. 13

5.1 Northbound API charging principles p. 13

5.1.0 General p. 13

5.1.1 Northbound API procedures p. 13

5.2 Northbound API offline charging scenarios p. 14

5.2.1 Basic principles p. 14

5.2.2 Rf message flows p. 14

5.2.2.1 Triggers for charging events from SCEF p. 14

5.2.3 CDR generation p. 14

5.2.3.1 Introduction p. 14

5.2.3.2 Triggers for EA-SCE-CDR creation and closure p. 14

5.2.3.2.1 Triggers for EA-SCE-CDR generation p. 14

5.2.4 Ga record transfer flows p. 15

5.2.5 Bea CDR file transfer p. 15

5.3 Northbound API online charging scenarios p. 15

5.3.1 Basic principles p. 15

5.3.1.1 General p. 15

5.3.2 Ro message flows p. 15

5.3.2.1 Event Based Charging p. 15

5.4 Northbound API converged online and offline charging scenarios |R16| p. 18

5.4.1 Basic principles p. 18

5.4.1.1 General p. 18

5.4.1.2 Applicable Triggers in the NEF |R17| p. 18

5.4.1.2.1 General p. 18

5.4.2 Message flows p. 19

5.4.2.1 Introduction p. 19

5.4.2.2 API Invocation - IEC p. 19

5.4.2.3 API Invocation - ECUR p. 20

5.4.2.4 API Notification - IEC p. 21

5.4.2.5 API event Notification - ECUR p. 21

5.4.2.6 API Invocation - PEC p. 22

5.4.2.7 API Notification - PEC p. 23

5.4.3 CDR generation p. 24

5.4.3.1 Introduction p. 24

5.4.3.2 Triggers for CHF CDR p. 24

5.4.3.2.1 General p. 24

5.4.3.2.2 Triggers for CHF CDR generation p. 24

5.4.3.2.3 Triggers for CHF CDR opening p. 25

5.4.3.2.4 Triggers for CHF CDR closure p. 25

5.4.4 Ga record transfer flows p. 25

5.4.5 Bea CDR file transfer p. 25

6 Definition of charging information p. 25

6.1 Data description for Northbound API offline charging p. 25

6.1.1 Rf message contents p. 25

6.1.1.1 General p. 25

6.1.1.2 Charging data request message p. 26

6.1.1.3 Charging data response message p. 26

6.1.2 Ga message contents p. 26

6.1.3 CDR description on the Bea interface p. 27

6.1.3.1 General p. 27

6.1.3.2 Exposure Function API charging data (EA-SCE-CDR) p. 27

6.2 Data description for Northbound API online charging p. 27

6.2.1 Ro message contents p. 27

6.2.1.0 Introduction p. 27

6.2.1.1 Summary of message formats p. 28

6.2.1.2 Structure for the Credit-Control message formats p. 28

6.2.1.2.1 Debit/Reserve Units Request message p. 28

6.2.1.2.2 Debit / Reserve Units Response message p. 29

6.2a Data description for NEF converged charging |R16| p. 29

6.2a.1 Message contents p. 29

6.2a.1.1 General p. 29

6.2a.1.2 Structure for the converged charging message formats p. 30

6.2a.1.2.1 Charging Data Request message p. 30

6.2a.1.2.2 Charging Data Response message p. 30

6.2a.2 Ga message contents p. 30

6.2a.3 CDR description on the Bea interface p. 31

6.2a.3.1 General p. 31

6.2a.3.2 NEF charging CHF CDR data p. 31

6.3 Northbound API charging specific parameters p. 32

6.3.1 Definition of Northbound API charging information p. 32

6.3.1.1 Exposure Function API charging information assignment for Service Information p. 32

6.3.1.2 Definition of the Exposure Function API Information p. 32

6.3.1.3 Supported features p. 33

6.3.1.4 Definition of the NEF API Information |R16| p. 33

6.3.1.4.1 Definition of the NEF API Charging Information p. 33

6.3.2 Detailed message format for offline charging p. 33

6.3.3 Detailed message format for online charging p. 35

6.3.4 Detailed message format for converged charging |R16| p. 37

6.4 Bindings for Northbound API offline charging p. 38

6.5 Bindings for NEF Northbound API converged charging |R16| p. 38

A (Normative) Charging characteristics p. 39

A.1 General p. 39

B (Normative) Support 5G VN group management charging |R17| p. 40

B.1 General p. 40

B.2 Charging Architecture for 5G VN group management charging p. 40

B.2.1 General p. 40

B.2.1.1 Logical Charging architecture - CEF based charging p. 40

B.2.2 Void

B.2.3 Charging principles and scenarios p. 41

B.2.3.1 Basic principles p. 41

B.2.3.2 Applicable triggers in 5G VN group management charging p. 41

B.2.3.2.1 5G VN group management charging via UDM p. 41

B.2.3.3 Message flows p. 42

B.2.3.3.1 5G VN group management charging via UDM p. 42

B.2.3.4 CDR generation p. 42

B.2.4 Charging Information p. 42

B.2.4.1 Data description for 5G VN group management charging p. 42

B.2.4.2 Definition of 5G VN group management charging information p. 44

B.2.4.3 Detailed message format for converged charging p. 44

B.2.5 Bindings for 5G VN group management converged charging p. 45

$ Change history p. 46