Question: What is a crucial condition for a User Equipment (UE) to consider a frequency as part of the Multimedia Broadcast/Multicast Service (MBMS) frequencies of interest, in addition to having at least one ongoing or upcoming MBMS session?
Option 1: The UE must be synchronized with the cell transmitting on that frequency.
Option 2: The UE's supported band combination includes at least one band combination with the set of MBMS frequencies of interest, and it can simultaneously receive relevant broadcasts.
Option 3: The frequency is always part of the MBMS frequencies of interest if an MBMS session is ongoing or about to start, regardless of other conditions.
Option 4: System information for the concerned frequency includes one or more MBMS Single-Area Identifiers (SAIs) as indicated in the User Service Description (USD) for this session, or the session is in receive-only mode.
Explanation: For a UE to consider a frequency part of the MBMS frequencies of interest, besides having an ongoing or upcoming MBMS session, it must also meet specific criteria related to how the network signals support for that session on the given frequency. This involves either the presence of relevant MBMS SAIs in system information matching those indicated in the USD for the session, or the session being in receive-only mode, ensuring the UE can appropriately prioritize and manage its reception of MBMS content across different frequencies.