Question: What does the Radio Resource Status Information Element (IE) primarily indicate in an Evolved Universal Terrestrial Radio Access Network (E-UTRAN)?
Option 1: The number of active User Equipment (UE: User Equipment) per cell for load balancing.
Option 2: The signal strength measurements for handover decisions between eNodeBs.
Option 3: The usage of Physical Resource Blocks (PRBs) for all traffic in both Downlink and Uplink, as well as the usage of PDCCH Control Channel Elements (CCEs) for scheduling.
Option 4: The Quality of Service (QoS) parameters for dedicated bearers in a Policy and Charging Control (PCC) architecture.
Explanation: This is correct because the Radio Resource Status IE is specifically designed to report on the utilization of key radio resources, namely Physical Resource Blocks (PRBs) for both Downlink and Uplink traffic, and the usage of PDCCH Control Channel Elements (CCEs) which are crucial for scheduling decisions in the E-UTRAN. This information is vital for efficient resource management and optimization across the network.