Question: In the Policy and Charging Control (PCC) architecture, what factors can influence determining the QoS to be applied in QoS reservation procedures for an IP-CAN bearer?
Option 1: Only the authorised QoS of the service data flows applicable to the IP-CAN bearer
Option 2: Solely based on predefined PCRF internal policies
Option 3: Exclusively considering service-based policies and QoS subscription information
Option 4: A combination of authorised QoS of service data flows, QoS subscription information, service-based policies, and/or predefined PCRF internal policies
Explanation: The PCC architecture's determination of QoS for IP-CAN bearers is multifaceted, incorporating various criteria to ensure dynamic and context-aware policy control. This includes considering the authorised QoS of relevant service data flows, subscriber's QoS subscription information, policies tied to specific services, and internal policies predefined within the Policy Charging Rules Function (PCRF).