Question: When a PCRF indicates to a PCEF that a PCC rule should be bound to the default bearer using the Default-Bearer-Indication AVP set to BIND_TO_DEF_BEARER (0), how does the PCEF handle QoS-Class-Identifier AVP and Allocation-Retention-Priority AVP within the QoS-Information AVP?
Option 1: The PCEF uses these AVPs for bearer binding purposes as primary indicators.
Option 2: The PCEF evaluates them for normal policy enforcement procedures for authorized QoS per service data flow immediately.
Option 3: The PCEF ignores these AVPs if the Default-Bearer-Indication AVP set to BIND_TO_DEF_BEARER (0) is included in the same Charging-Rule-Definition AVP.
Option 4: The PCEF uses them to modify the existing bearer's QoS settings.
Explanation: According to policy provisioning and enforcement rules, when the Default-Bearer-Indication AVP is set to BIND_TO_DEF_BEARER (0), the PCEF ignores any values in QoS-Class-Identifier AVP and Allocation-Retention-Priority AVP within the same Charging-Rule-Definition AVP, as the binding decision overrides the need for these specific QoS evaluations at this stage.