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Content for  TS 29.502  Word version:  18.7.0

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5.2.2.8  Update service operationp. 69

5.2.2.8.1  Generalp. 69
The Update service operation shall be used for HR PDU sessions or for PDU sessions involving an I-SMF to:
  • update an individual PDU session in the H-SMF or SMF and/or provide the H-SMF or SMF with information received by the V-SMF or I-SMF in N1 SM signalling from the UE;
  • update a MA PDU session to indicate an additional access type, if the UE requests establishment of MA PDU session via the other access after the UE is registered to both 3GPPP access and non-3GPP access and the MA PDU session was successfully established on the first access (see clause 4.22.2.2 of TS 23.502);
  • release a MA PDU session over a single access in the H-SMF or SMF;
  • update an individual PDU session in the V-SMF or I-SMF and/or provide information necessary for the V-SMF or I-SMF to send N1 SM signalling to the UE.
It is invoked by the V-SMF or I-SMF in the following procedures:
It is invoked by the I-SMF in the following procedures:
It is invoked by the H-SMF or SMF in the following procedures:
It is invoked by the SMF in the following procedures:
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