Question: What is the implication of a User Equipment (UE) setting `discInterFreqTx-r13` to "supported" in terms of sidelink discovery announcements?
Option 1: The UE can only make sidelink discovery announcements on the primary frequency, regardless of its transmitter capabilities.
Option 2: The UE is capable of making sidelink discovery announcements on frequencies other than the primary one, facilitated by either a separate transmitter or requested transmission gaps.
Option 3: This setting indicates the UE's support for Carrier Aggregation (CA) but not Dual Connectivity (DC) for sidelink communications.
Option 4: Setting `discInterFreqTx-r13` to "supported" implies the UE cannot operate in Dual Connectivity (DC) mode for sidelink discovery.
Explanation: Setting `discInterFreqTx-r13` to "supported" signifies that the User Equipment (UE) has the capability to transmit sidelink discovery announcements not just on the primary frequency, but also on other frequencies. This flexibility is enabled either by the UE having a separate transmitter dedicated for this purpose or through its ability to request specific transmission gaps for sidelink discovery, accommodating various UE configurations such as Carrier Aggregation (CA) and Dual Connectivity (DC).