Question: For a UTRA FDD User Equipment (UE) supporting Dual-Band Dual-Cell High-Speed Downlink Packet Access (DB-DC-HSDPA), what is the primary purpose of measuring Spurious Response as defined in the context of radio transmission and reception?
Option 1: To assess the UE's ability to maintain signal quality on its assigned channel frequency despite the presence of unwanted Continuous Wave (CW) interfering signals.
Option 2: To evaluate the UE's transmitter power output across different frequency bands.
Option 3: To determine the UE's capacity for handling multiple simultaneous connections.
Option 4: To test the UE's receiver sensitivity in the absence of any interference.
Explanation: Measuring Spurious Response is crucial for understanding how well a UE can receive a desired signal without significant degradation caused by unwanted CW interfering signals at other frequencies, especially when those frequencies do not meet the out-of-band blocking limits. This directly relates to maintaining signal quality on assigned channels in the presence of interference, which is vital for reliable communication in DB-DC-HSDPA configurations.