Question: In a 1.28 Mcps TDD UMTS network, what action does a User Equipment (UE) take when it estimates that a specific Transport Format Combination (TFC) would exceed its maximum transmit power?
Option 1: The UE automatically switches to a lower data rate to accommodate the power constraint.
Option 2: The UE limits the usage of transport format combinations for the assigned transport format combination set.
Option 3: The UE sends a power excess warning to the network, which then adjusts the TFC.
Option 4: The UE temporarily suspends transmission until power levels can accommodate the TFC.
Explanation: This action allows the UE to operate within its maximum transmit power capability while still utilizing the assigned transport format combination set, thereby maximizing network coverage as intended by the network operator. This behavior is crucial for maintaining reliable communication links without overpowering the UE's transmission capabilities.