Question: What is the primary purpose of the TN-AreaId Information Element in a Non-Terrestrial Network (NTN) system, as per Radio Resource Control (RRC) protocol specifications?
Option 1: To uniquely identify User Equipment (UE) within the network.
Option 2: To specify the maximum transmission power for a UE in an NTN cell.
Option 3: To identify a TN coverage area within the NTN system.
Option 4: To determine the handover criteria between terrestrial and non-terrestrial networks.
Explanation: The correct answer, Option 3, accurately reflects the role of TN-AreaId as described. It is used to identify a specific TN coverage area, which is crucial for network operations, resource allocation, and communication management within NTN systems. This identification helps in efficient resource utilization and ensures seamless connectivity across different coverage areas. Options 1, 2, and 4 are incorrect as they do not align with the primary purpose of TN-AreaId, which is focused on area identification rather than UE identification, transmission power settings, or handover criteria.