Question: In a 5G Network, how can measurements for multiple Data Radio Bearers (DRBs) be aggregated at the cell level, according to network implementation possibilities?
Option 1: Only by User Equipment (UE) type
Option 2: By Quality of Service (QoS) level, which maps to 5QI for NR SA or QCI for EN-DC
Option 3: Solely based on the Public Land Mobile Network (PLMN) ID of the visiting network
Option 4: Exclusively by the total number of connected UEs per cell
Explanation: This is correct because measurements can indeed be aggregated by QoS level at the cell level, defined by its mapping to 5QI for New Radio (NR) Standalone (SA) or to QCI for E-UTRA-NR Dual Connectivity (EN-DC), allowing for a nuanced aggregation based on service quality requirements.