Question: What is the primary purpose of the timing advance sent by the eNodeB (eNB) to the User Equipment (UE) in an Evolved Universal Terrestrial Radio Access Network (E-UTRAN)?
Option 1: To synchronize uplink transmissions from different UEs with the receiver window of the eNB, compensating for propagation delay.
Option 2: To adjust the power levels of UE transmissions based on received signal strength.
Option 3: To manage handover processes between different eNBs in the network.
Option 4: To allocate resources for downlink data transmission.
Explanation: The timing advance is specifically used to adjust the UE's transmission timing, ensuring signals from various UEs arrive at the eNB within a designated receiver window, compensating for differences in propagation delay and maintaining synchronization across the network, crucial for efficient uplink communication in cellular networks like E-UTRAN.