Question: In 5G networks, what is the primary purpose of validating the source and integrity of charging information as per 3GPP standards for billing?
Option 1: To optimize network resource allocation for service provisioning
Option 2: To ensure the home environment and serving network can trust the charging information exchanged, verifying it comes from an authenticated source and has not been tampered with.
Option 3: To streamline the billing process for end-users by reducing invoice complexity
Option 4: To enhance Quality of Service (QoS) for real-time applications based on usage patterns
Explanation: Validating the source and integrity of charging information is crucial for maintaining trust between the home environment and the serving network. This ensures that billing is accurate, reflecting services actually provided to specified users, thereby preventing potential fraud or errors.