Question: In a scenario where a User Equipment (UE) is utilizing both E-UTRA and NR radio access for different channels/signals that are time-division multiplexed, what is the requirement for the UE regarding subframe boundaries of these two channels/signals?
Option 1: The UE must introduce a fixed offset between the subframe boundaries of the two channels/signals to minimize interference.
Option 2: The UE must align the subframe boundary of the second channel/signal (NR) with the subframe boundary of the first channel/signal (E-UTRA), achieved through UE implementation means.
Option 3: The UE can dynamically adjust the subframe boundaries based on network load to optimize resource allocation.
Option 4: No specific alignment is required for the subframe boundaries of the two channels/signals as long as they are time-division multiplexed.
Explanation: To ensure efficient and interference-free operation when a UE is handling both E-UTRA and NR radio accesses in a time-division multiplexed manner, aligning the subframe boundaries of both channels/signals is crucial. This alignment, as specified, must be achieved through implementation means within the UE itself, ensuring seamless switching between the two without compromising on performance or introducing unnecessary complexity to the network.