Question: What is the primary objective of mobility load balancing in a cellular network?
Option 1: To prioritize traffic from high-priority users
Option 2: To distribute load evenly among cells and areas, or to transfer part of the traffic from congested cell or areas to achieve network energy saving
Option 3: To minimize handover failures and optimize system capacity
Option 4: To ensure seamless communication during inter-RAT handovers
Explanation: Mobility load balancing aims to distribute load evenly among cells and areas, or to transfer part of the traffic from congested cell or areas to achieve network energy saving. This is achieved through optimization of cell reselection/handover parameters and handover actions, ultimately leading to improved system capacity and user experience.