Question: What is a characteristic of the UE Aggregate Maximum Bit Rate Information Element (IE) in UTRAN's Iur interface RNSAP signalling?
Option 1: It applies to all GBR (Guaranteed Bit Rate) bearers per UE for both Downlink and Uplink directions.
Option 2: It is applicable for all Non-GBR (Non-Guaranteed Bit Rate) bearers per UE, defined for both Downlink and Uplink directions, provided by the Core Network (CN) to the Radio Network Controller (RNC).
Option 3: It is mandatory for only one direction (either Downlink or Uplink) for all types of bearers in a UE.
Option 4: Its inclusion in signalling is dependent on the type of Core Network (CN) architecture employed.
Explanation: The correct answer accurately describes the characteristic of the UE Aggregate Maximum Bit Rate IE. It highlights that this IE is specifically for Non-GBR bearers, applies to both Downlink and Uplink, and is provided by the CN to the RNC.