Question: During Gateway Control Session Establishment in a 3GPP network, what additional information may the PCRF include in the Acknowledge message for a UE/NW bearer establishment mode, beyond matching the Default EPS Bearer QoS?
Option 1: Only Authorized APN-AMBR and Serving Network ID
Option 2: QoS Rules with a different QCI and ARP than the Default EPS Bearer QoS, but only if NW mode applies to all bearers
Option 3: QoS Rules requiring a QCI and ARP different from the Default EPS Bearer QoS, specifically for which NW mode applies
Option 4: User Location Information and RAT Type for direct transmission to the MME
Explanation: In the context of Gateway Control Session Establishment, when the bearer establishment mode is set to UE/NW (User Equipment/Network), the Policy and Charging Rules Function (PCRF) has the flexibility to include additional QoS Rules in its acknowledgement. These rules can have a Quality Class Identifier (QCI) and Allocation and Retention Priority (ARP) that differ from those of the Default EPS Bearer QoS, but this flexibility is specifically tied to cases where Network (NW) mode applies. This allows for more granular control over network resources based on the bearer establishment mode and the specific requirements of the network at that moment.