Usage Report in N4 Delete Session Response
This section provides information on the usage report in N4 Delete Session Response.

Step |
Description |
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1 |
The SMF sends the N4 Delete Session Request to to CnPGW-U to delete the session. The CnPGW-U sends the usage report in the N4 Delete Session Response to SMF. |
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2 |
The SMF sends the CCR-T message for each bearer in different Gy Diameter sessions to OCS. These sessions can have one or multiple MSCCs with USU. |
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3 |
The OCS sends the CCA-T message from the corresponding Gy Diameter session to SMF. |