Question: What is a requirement for a User Equipment (UE) that supports New Radio (NR) Standalone (SA) operation in terms of frequency priority support?
Option 1: Support for only NR frequency priorities
Option 2: Support for only extended E-UTRA frequency priorities
Option 3: Support for either extended E-UTRA or NR frequency priorities
Option 4: Mandatory support for both extended E-UTRA frequency priorities and NR frequency priorities
Explanation: For a UE to operate in an NR SA mode, it must handle specific requirements of both E-UTRA (for interworking scenarios) and NR. Thus, supporting both extended E-UTRA frequency priorities (for seamless integration with existing LTE infrastructure) and NR frequency priorities (for native 5G operations) is mandatory, ensuring efficient cell reselection across different radio access technologies.