Question: What is a prerequisite for a User Equipment (UE) to support DL subcarrier puncturing in coverage enhancement mode B, as per E-UTRA specifications?
Option 1: The UE must also support subcarrierPuncturing-CE-ModeA-r16 and ce-ModeB-r13.
Option 2: The UE only needs to operate in TDD (Time Division Duplex) mode.
Option 3: The UE has to be capable of transmitting on multiple bands simultaneously.
Option 4: The UE must have a specific NR (New Radio) frequency band allocated.
Explanation: According to E-UTRA specifications, for a UE to support DL subcarrier puncturing in coverage enhancement mode B, it is mandatory that the UE also indicates support for both subcarrierPuncturing-CE-ModeA and ce-ModeB. This ensures seamless coexistence with NR when operating in enhanced coverage modes, highlighting the interdependence of these capabilities for optimized network performance.