Question: For which types of UTRA-User Equipment (UTRA-UE) do the Adjacent Channel Leakage power Ratio (ACLR) requirements apply?
Option 1: All UTRA-UE supporting only LTE
Option 2: All types of UTRA-UE that support HSUPA from Release 7 onwards
Option 3: Only UTRA-UE with specific frequency band allocations
Option 4: UTRA-UE without HSUPA support, for backward compatibility
Explanation: The ACLR requirements apply to all types of UTRA-User Equipment (UTRA-UE) that have High-Speed Uplink Packet Access (HSUPA) capabilities, starting from Release 7 and later releases, ensuring efficient spectrum usage and minimizing interference in wireless communications.