Content for TS 23.161 Word version: 18.0.0

1… 5… 6… 6.2… 6.2.4 6.3… 6.3.2.2… 6.3.3… 6.3.3.2… 6.4… 6.4.2.2… 6.5… 6.5.2… 6.5.3… 6.6… 6.6.1.3… 6.6.2… 6.7… 6.7.2… 6.8…

6.5.3 Removal of Untrusted WLAN access 6.5.3.1 UE-initiated removal of Untrusted WLAN access from the PDN connection 6.5.3.2 Network-initiated removal of Untrusted WLAN access from a PDN Connection
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6.5.3 Removal of Untrusted WLAN access p. 48

6.5.3.1 UE-initiated removal of Untrusted WLAN access from the PDN connection p. 48

When the UE remove from the WLAN access for the multi-access PDN connection, the following procedures shall be applied.

Copy of original 3GPP image for 3GPP TS 23.161, Fig. 6.5.3.1-1: UE-initiated Removal of Untrusted WLAN access from the PDN connection

Figure 6.5.3.1-1: UE-initiated Removal of Untrusted WLAN access from the PDN connection
(⇒ copy of original 3GPP image)

Step 1.

The description of these steps is the same as for steps 1 in TS 23.402, clause 7.4.1.1.

Step 2-3.

The description of these steps is the same as for steps A.1-A.2 in TS 23.402, clause 7.4.3.1.

Step 4.

The P-GW indicates to the PCRF the WLAN access is removed from the multi-access PDN connection, if dynamic PCC is applied for the PDN connection.

Step 5.

The description of these steps is the same as for steps A.3 in TS 23.402, clause 7.4.3.1.

Step 6.

The description of these steps is the same as for steps 6 in TS 23.402, clause 7.4.1.1.

6.5.3.2 Network-initiated removal of Untrusted WLAN access from a PDN Connection p. 49

When the Network removes the Untrusted WLAN access for the multi-access PDN connection, the following procedures shall be applied.

Copy of original 3GPP image for 3GPP TS 23.161, Fig. 6.5.3.2-1: Network-initiated Removal of Untrusted WLAN access from the PDN connection

Figure 6.5.3.2-1: Network-initiated Removal of Untrusted WLAN access from the PDN connection
(⇒ copy of original 3GPP image)

Step 1.

The PCRF shall indicate to the P-GW the removal of WLAN access for the multi-access PDN connection via IP-CAN Session Modification procedure by updating or removing all PCC rules that are bound to this access.

Step 2-5.

The description of these steps is the same as for steps 2-5 in TS 23.402, clause 7.9.2. The P-GW deactivates the default bearer of this access.

Step 6.

The P-GW shall indicate to the PCRF the WLAN access is removed from the multi-access PDN connection.

The optional interaction steps between the PDN GW and the PCRF in the procedures only occur if dynamic PCC is applied for the PDN connection.