Question: What is the primary purpose of providing Ephemeris and Clock Models assistance to a User Equipment (UE) in an Evolved Universal Terrestrial Radio Access Network (E-UTRAN)?
Option 1: To enhance cellular network synchronization with global navigation satellite systems (GNSS)
Option 2: To enable the UE's GNSS receiver to calculate GNSS satellite positions and clock offsets
Option 3: To facilitate handover between different E-UTRAN cells using location-based services
Option 4: To improve the security of positioning data transmitted over the E-UTRAN
Explanation: The correct answer highlights the key function of Ephemeris and Clock Models assistance. By providing these parameters, the UE's GNSS receiver can accurately determine the position of GNSS satellites and their respective clock offsets, crucial for precise location determination in various positioning technologies supported by E-UTRAN, impacting the performance of location services in telecom networks.