Question: What is a prerequisite for a User Equipment (UE) to support the demodulationEnhancements2-r16 feature, which enables enhanced demodulation for velocities up to 500km/h in High-Speed Train Scenarios with Single Frequency Network (HST-SFN)?
Option 1: Support for LTE Carrier Aggregation
Option 2: Capability for Dynamic Spectrum Sharing
Option 3: Indication of support for demodulationEnhancements-r14
Option 4: Implementation of 5G New Radio (NR) Dual Connectivity
Explanation: The correct answer is based on the understanding that for a UE to support advanced features like demodulationEnhancements2-r16, which are built upon previous enhancements, it must also support the foundational enhancements. In this case, indicating support for demodulationEnhancements-r14 is mandatory for a UE to claim support for demodulationEnhancements2-r16, highlighting the incremental nature of these enhancements in improving demodulation capabilities, especially in challenging scenarios like high-speed trains.