What is the purpose of the announcing UE procedure for Relay Discovery Additional Information?
To announce MBMS traffic the ProSe UE-to-network relay is relaying
To announce the E-UTRAN Cell serving the ProSe UE-to-network relay
To obtain a valid UTC time for the discovery transmission
To request the ProSe UE-to-network relay to start monitoring a specific TMGI availability
To announce the Relay Service Code and the ProSe Relay UE ID used for ProSe direct communication