5.2 Nsmf_PDUSession Service
5.2.1 Service Description
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Create SM Context Create an SM context in SMF, or in V-SMF in
HR roaming scenarios, or in I-SMF during the
I-SMF insertion and change scenarios, for a
PDU session.
Request/Response AMF
Update SM Context Update the SM context of a PDU session
and/or provide the SMF with N1 or N2 SM
information received from the UE or from the
AN.
Request/Response AMF, I-SMF
Release SM Context Release the SM context of a PDU session
when the PDU session has been released.
Request/Response AMF
Notify SM Context
Status
(see NOTE 1)
Notify the NF Service Consumer about the
status of an SM Context of a PDU session
(e.g. the SM Context is released within the
SMF).
Subscribe/Notify AMF
Retrieve SM Context
(see NOTE 2)
Retrieve an SM context of a PDU session from
SMF, or from V-SMF in HR roaming scenarios,
for 5GS to EPS mobility, or from an I-SMF
during insertion/change of I-SMF, or from V-
SMF during change of V-SMF.
Request/Response AMF, I-SMF, V-
SMF
Create Create a PDU session in the H-SMF, in HR
roaming scenarios.
Request/Response V-SMF
Update Update a PDU session in the H-SMF or V-
SMF, in HR roaming scenarios.
Request/Response V-SMF, H-SMF
Release Release a PDU session in the H-SMF, in HR
roaming scenarios.
Request/Response V-SMF
Notify Status
(see NOTE 3)
Notify the NF Service Consumer about the
status of a PDU session (e.g. the PDU session
is released due to local reasons within the H-
SMF).
Subscribe/Notify V-SMF
NOTE 1: This corresponds to the SMContextStatusNotify service operation defined in 3GPP=TS=23.502=[3].
NOTE 2: This corresponds to the ContextRequest service operation defined in 3GPP=TS=23.502=[3].
NOTE 3: This corresponds to the StatusNotify service operation defined in 3GPP=TS=23.502=[3].
3GPP