Question: In E-UTRAN, what is the primary purpose of defining two ranges of SPID (Subscriber Profile ID for RAT/Frequency Priority) values at the eNB?
Option 1: To differentiate between various types of User Equipment (UE) capabilities.
Option 2: For load balancing across different cells within the network.
Option 3: To manage Quality of Service (QoS) parameters for different subscribers.
Option 4: To map Reference SPID values to cell reselection and inter-RAT/inter frequency handover priorities.
Explanation: Defining two ranges of SPID values at the eNB is primarily for mapping Reference SPID values to cell reselection and inter-RAT/inter frequency handover priorities, impacting user experience and network performance through efficient handovers and optimal cell selection based on predefined priority rules.