Question: What is a prerequisite for a User Equipment (UE) to support 'MT-EDT for User Plane CIoT EPS Optimisation' in terms of its operational mode or category, specifically for Frequency Division Duplexing (FDD)?
Option 1: The UE must support only TDD (Time Division Duplexing) and have a ue-Category-M.
Option 2: The UE must support either ce-ModeA-r13 or any ue-Category-M for both TDD and FDD.
Option 3: The UE's support is not dependent on its duplex mode but requires a minimum of ue-Category-1.
Option 4: For FDD, the UE must support any ue-Category-NB; alternatively, supporting ce-ModeA-r13 is also sufficient.
Explanation: This question assesses understanding of specific conditions under which a UE can support 'MT-EDT for User Plane CIoT EPS Optimisation'. The correct answer accurately reflects the prerequisites: for FDD, the UE needs to support any ue-Category-NB, and as an alternative condition (not limited to FDD), supporting ce-ModeA-r13 is also sufficient, demonstrating nuanced understanding of telecom specifications.