Question: What is the required accuracy for a User Equipment (UE) to apply a signalled Timing Advance value to its Uplink Dedicated Physical Channel (UL DPCH) transmission timing?
Option 1: ±1 chip
Option 2: ±0.5 chip
Option 3: ±2 chips
Option 4: ±1.5 chips
Explanation: In wireless communications, particularly in the context of 3GPP specifications for TDD (Time Division Duplex) modes, precise timing is crucial for effective communication. The Timing Advance adjustment ensures that the UE's uplink transmissions are synchronized with the base station's expectations. An accuracy of ±0.5 chip strikes a balance between feasibility and the need for tight synchronization to maintain signal integrity and minimize interference. This level of precision is critical for reliable data transfer and voice communications in cellular networks.