Question: For a UTRA FDD User Equipment (UE) supporting DCH Enhancement for UMTS, what is the primary focus of the requirement specified in relation to DL power control during initial connection setup?
Option 1: To verify UL (Uplink) transmission power stability over an extended period.
Option 2: To ensure seamless handover between different radio access technologies.
Option 3: To test the UE's ability to handle multiple simultaneous connections.
Option 4: To confirm proper functioning of Downlink (DL) power control immediately after establishing a DPCH connection.
Explanation: This question requires understanding of telecom concepts related to radio transmission and reception, specifically focusing on the downlink (DL) power control mechanism in UTRA FDD networks. The correct answer highlights the primary objective of verifying DL power control functionality right after a Dedicated Physical Channel (DPCH) connection is established, ensuring optimal signal strength and minimizing interference from the outset, crucial for maintaining good call quality and network performance.