Question: In a Policy and Charging Control (PCC) architecture, under what condition will the PCRF provide the Selected Bearer-Control-Mode AVP to the GGSN during IP-CAN session establishment?
Option 1: If the UE has previously indicated support for Network-Request-Support and the GGSN received this indication from the SGSN.
Option 2: If the PCRF determines a change in operator policy without any input from the GGSN or SGSN.
Option 3: Automatically, as part of every IP-CAN session establishment procedure, regardless of support indications.
Option 4: Only when the UE requests additional PDP Context establishment with specific traffic mapping.
Explanation: The PCRF provides the Selected Bearer-Control-Mode AVP to the GGSN during IP-CAN session establishment if the GGSN provided the Network-Request-Support AVP, which happens when both the UE and SGSN have previously indicated their support for this procedure to the GGSN, ensuring all involved elements can handle the selected bearer control mode.