N4 Session Report
This section provides details on the N4 Session Report.

Step |
Description |
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1 |
A Device Under Test (DUT) node exists on SMF.
CnPGw-U sends the N4 Session Report to SMF for one or multiple URRs across bearers. |
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2 |
The SMF sends the CCR-U message for each bearer in different Gy Diameter sessions to OCS. These sessions can have one or multiple MSCCs, which is one for each Rating Group and service ID. |
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3 |
The OCS sends the CCA-U message from the corresponding Gy Diameter session to SMF. The Diameter session includes details, such as quota and triggers for each Rating Group and Service ID. |
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4 |
The SMF sends the N4 Session Modification Request to CnPGW-U. This request includes details on the required URRs with new quota. |
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5 |
The CnPGW-U sends the N4 Session Modification Response to SMF. |