Question: What is the primary purpose of monitoring reference timing signals in the 5G system?
Option 1: To detect changes in network traffic patterns
Option 2: To ensure accurate network time synchronization and detect potential timing source failures
Option 3: To optimize resource allocation for device connections
Option 4: To enhance security measures for data transmission
Explanation: The primary purpose of monitoring reference timing signals in the 5G system is to ensure accurate network time synchronization and detect potential timing source failures, such as GNSS failure. This allows the system to adopt an alternate time source, if available, and maintain reliable time synchronization for devices (e.g., UEs) and applications.