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Content for  TS 23.214  Word version:  18.0.0

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6.3.2 Updates to procedures specified in TS 23.203 [3]  6.3.2.1 IP-CAN session establishment  6.3.2.2 IP-CAN session termination  6.3.2.3 IP-CAN session modification  6.3.2.4 Management of PFDs 
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6.3.2  Updates to procedures specified in TS 23.203 [3]  p. 52

6.3.2.1  IP-CAN session establishment  p. 52

This clause defines interactions between the CP and UP function during the following procedures:
During the above procedures following is the nature of interactions between the CP and UP function:
  • The new TDF-C selects a new TDF-U and creates Sx session.
  • The TDF-C modifies the TDF-U to update Sx parameters.
Copy of original 3GPP image for 3GPP TS 23.214, Fig. 6.3.2.1-1: Interaction between CP and UP function with IP-CAN session establishment
Figure 6.3.2.1-1: Interaction between CP and UP function with IP-CAN session establishment
(⇒ copy of original 3GPP image)
Up
Step 1.
Procedure as listed in this step is initiated as specified in the relevant clauses of this specification. The relevant steps of the procedure as specified in the Figure above are executed.
Step 2.
For the solicited application reporting, the PCRF requests the TDF to establish the relevant session towards PCRF and provides ADC Rules to the TDF. The TDF-C selects a new TDF-U as specified in clause 5.12 and sends an Sx Session Establishment Request to the TDF-U to establish the Sx session.
Step 3.
The TDF-U sends an Sx Session Establishment Response to the TDF-C confirming the successful creation of the Sx session.
Step 4.
The relevant steps of the procedure as specified in the Figure above are executed.
Up

6.3.2.2  IP-CAN session termination  p. 53

This clause defines interactions between the CP and UP function during the following procedures:
During the above procedures following is the nature of interactions between the CP and UP function:
  • The TDF-C releases the existing Sx session from the TDF-U.
Copy of original 3GPP image for 3GPP TS 23.214, Fig. 6.3.2.2-1: Interaction between CP and UP function with IP-CAN session termination
Figure 6.3.2.2-1: Interaction between CP and UP function with IP-CAN session termination
(⇒ copy of original 3GPP image)
Up
Step 1.
Procedure as listed in this step is initiated as specified in the relevant clauses of this specification. The relevant steps of the procedure as specified in the Figure above are executed.
Step 2.
If there is an active Sd session between TDF and PCRF, TDF-C sends an Sx Session Termination Request to the TDF-U to release the Sx session.
Step 3.
The TDF-U sends an Sx Session Termination Response to the TDF-C confirming the release of the Sx session
Step 4.
The relevant steps of the procedure as specified in the Figure above are executed.
Up

6.3.2.3  IP-CAN session modification  p. 53

This clause defines interactions between the CP and UP function during the following procedures:
During the above procedures following is the nature of interactions between the CP and UP function:
  • The TDF-C modifies the TDF-U to update Sx parameters.
  • The PGW-C modifies the PGW-U to update Sx parameters.
Copy of original 3GPP image for 3GPP TS 23.214, Fig. 6.3.2.3: Interaction between CP and UP function with IP-CAN session modification
Figure 6.3.2.3: Interaction between CP and UP function with IP-CAN session modification
(⇒ copy of original 3GPP image)
Up
Step 1.
Procedure as listed in this step is initiated as specified in the relevant clauses of this specification. The relevant steps of the procedure as specified in the Figure above are executed.
Step 2.
For the TDF solicited application reporting, and PCRF provides new ADC decisions to the TDF, TDF-C sends an Sx Session Modification Request to the TDF-U to update Sx parameters.
Step 3.
The TDF-U sends an Sx Session Modification Response to the TDF-C confirming update of Sx session.
Step 4.
The relevant steps of the procedure as specified in the Figure above are executed.
Step 5.
PCRF provides the updated PCC rules, and PGW-C may send an Sx Session Modification Request to the PGW-U to update Sx parameters.
Step 6.
The PGW-U sends an Sx Session Modification Response to the PGW-C confirming the update of Sx session.
Step 7.
The relevant steps of the procedure as specified in the Figure above are executed.
Up

6.3.2.4  Management of PFDs  p. 54

This clause defines interactions between the CP and UP function during the following procedures:
During the above procedures following is the nature of interactions between the CP and UP function:
  • The PGW-C/TDF-C provision/update/remove the PFD (s) to the PGW-U/TDF-U.
Copy of original 3GPP image for 3GPP TS 23.214, Fig. 6.3.2.4-1: Interaction between CP and UP function with PFD management
Figure 6.3.2.4-1: Interaction between CP and UP function with PFD management
(⇒ copy of original 3GPP image)
Up
Step 1.
Procedure as listed in this step is initiated as specified in the relevant clauses of this specification. The relevant steps of the procedure as specified in the Figure above are executed.
Step 2.
When there's any change to the PFD (s) due to pull mode or push mode procedure, the PGW-C/TDF-C sends PFD management request to the PGW-U/TDF-U to provision/update/remove the PFD (s).
Step 3.
PGW-U/TDF-U acknowledges by responding with PFD management response message.

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