Question: For a UTRA FDD UE (User Equipment) supporting single band single uplink 4C-HSDPA, what is the primary purpose of evaluating its blocking characteristic as defined in the context of radio transmission and reception?
Option 1: To assess the transmitter's ability to handle multiple frequency bands simultaneously.
Option 2: To measure the receiver's sensitivity to adjacent channel interference.
Option 3: To determine the receiver's capability to maintain performance when exposed to unwanted interferers on non-adjacent, non-spurious response frequencies.
Option 4: To evaluate the UE's handover performance between different base stations.
Explanation: The blocking characteristic is crucial for understanding how well a receiver can filter out unwanted signals that are not in the adjacent channels or spurious response frequencies, ensuring the desired signal's quality is maintained. This directly impacts the UE's ability to receive and process the intended signal without degradation, which is vital for reliable communication in crowded spectrum environments.