Question: Which of the following is a primary purpose of providing Ionospheric Model assistance to a GNSS (Global Navigation Satellite System) receiver in an E-UTRAN (Evolved Universal Terrestrial Radio Access Network)?
Option 1: To enhance the security of satellite signal transmission
Option 2: To model and compensate for the propagation delay of GNSS signals through the ionosphere
Option 3: To improve the accuracy of satellite orbit predictions
Option 4: To increase the power of GNSS signals received by User Equipment (UE)
Explanation: Ionospheric Model assistance is crucial for accurate positioning in GNSS. The ionosphere can significantly delay GNSS signal propagation, affecting location accuracy. By providing parameters to model this delay, the GNSS receiver can better compensate for it, leading to more precise positioning.