Question: What is the primary purpose of the 'ss-SINR-Meas-NR-FR2-r15' field in UE radio access capabilities?
Option 1: To indicate UE support for E-UTRA-NR Dual Connectivity in NG-RAN.
Option 2: To specify UE capability for NR FR1 SS-SINR measurements.
Option 3: To signify whether the UE can perform NR Frequency Range 2 (FR2) SS-SINR measurements as per physical layer measurement specifications.
Option 4: To determine UE compatibility with legacy UTRA networks.
Explanation: The 'ss-SINR-Meas-NR-FR2-r15' field is related to the UE's capability for NR Frequency Range 2 (FR2) SS-SINR measurements, crucial for physical layer measurements in 5G NR systems, ensuring optimal network performance and user experience in higher frequency ranges.