8.3.4 PDN GW-initiated PDN disconnection Procedure with DSMIPv6 on S2c in untrusted Fixed Broadband Access

23.1393GPP3GPP system - fixed broadband access network interworkingRelease 17Stage 2TS

The procedure in this clause applies to PDN disconnection procedure initiated by PDN GW.

Figure 8.3.4-1: PDN GW-initiated PDN disconnection procedure with DSMIPv6 on untrusted s2c

NOTE: In the roaming case, the Step 2 terminates at the V-PCRF.

If dynamic policy provisioning over S9a is not deployed, the optional steps 2, 3, 5 and 6 do not occur. Instead, the Fixed Broadband Access network may employ local policies.

1. The description of this step is the same as for steps 1-4 in TS 23 402 [3], clause 7.5.4.

2. If the last PDN connections is released, PCRF initiates Gxb* session termination procedure.

3. Triggered by the IP-CAN session termination in step 1, the PCRF executes a Gateway Control and QoS Rules Provision procedure or, if this is the last PDN Connection for the UE, a PCRF-Initiated Gateway Control Session Termination Procedure with the BPCF.

4. The description of this step is the same as clause 7.3 step 4

5. The description of this step is the same as clause 7.3 step 5.

6. The description of this step is the same as clause 7.3 step 6.