- Verify that the IUT sends correctly a PDU SESSION RELEASE REJECT after receiving a PDU SESSION RELEASE REQUEST by the UE.
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- Verify that the IUT handles correctly a PDU SESSION RELEASE REQUEST after receiving a PDU SESSION RELEASE REQUEST by the UE.
Note: There is no message back to the UE after receiving the PDU SESSION RELEASE REJECT, the correct execution of Session Release can be tested with another message.
- Verify that the IUT sends correctly a PDU SESSION RELEASE REJECT after receiving a PDU SESSION RELEASE REQUEST by the UE and not accepts the session release with reason #35 (PTI already in use).
- Verify that the IUT sends correctly a PDU SESSION RELEASE REJECT after receiving a PDU SESSION RELEASE REQUEST by the UE and not accepts the session release with reason #43 (Invalid PDU session identity).
Note: there can be other protocol reasons for not accepting the PDU Session release
