Question: For a User Equipment (UE) with Downlink (DL) Category 12, what is the implication of supporting 256QAM in Downlink (DL)?
Option 1: It is optional but required for all supported frequency bands if implemented.
Option 2: It is mandatory and automatically enables 256QAM in Uplink (UL).
Option 3: It is not applicable; only UEs of DL Category 13 and above can support 256QAM in DL.
Option 4: It is conditional, based on the UE's supported bandwidth.
Explanation: According to the specifications, for UEs with DL Category 11-12 (which includes Category 12), supporting 256QAM in DL is not mandatory but if a UE of this category does support 256QAM in DL, it must do so across all its supported frequency bands.