Question: In a UTRAN (Universal Terrestrial Radio Access Network) with Downlink (DL) maximum power limitation, what is the primary concern being verified in relation to the User Equipment's (UE: User Equipment) downlink power control after the limitation is released?
Option 1: The UE's ability to immediately revert to its original transmission power.
Option 2: The UE's capacity to reduce power consumption during the limitation period.
Option 3: The prevention of a 'wind up effect', where required DL power unnecessarily increases after limitations are lifted.
Option 4: The UE's compliance with Release 7 and later specifications for 1.28 Mcps TDD (Time Division Duplex) solely.
Explanation: This question targets the understanding of downlink power control dynamics in UTRAN, specifically focusing on the 'wind up effect'. The correct answer, Option 3, highlights the primary concern of preventing an unnecessary increase in required DL power after limitations are released. This is crucial for maintaining efficient network operation and signal quality. Options 1, 2, and 4, while related to UE or network behaviors, do not directly address the specific concern of post-limitation power control behavior as described.