Section: 6.6.3.2 Remote UE Report initiated by the UE
Content: The UE initiates the Remote UE Report procedure by sending a REMOTE UE REPORT message to the network, starting timer T3493 and entering the state PROCEDURE TRANSACTION PENDING (see example in figure 6.6.3.2.1). The UE shall include information of newly connected or disconnected remote UEs to the network in the REMOTE UE REPORT message. If any encrypted IMSI remote UE identity is included in the REMOTE UE REPORT message, the UE shall include the corresponding ProSe Key Management Function address. The UE shall include the default EPS bearer identity of the PDN connection associated with the remote UE connected to the ProSe UE-to-network relay or disconnected from the ProSe UE-to-network relay. If the UE allocated an IPv4 address to a remote UE and enabled UDP usage to the remote UE, the UE shall include in the REMOTE UE REPORT message the UDP port range assigned to the remote UE in the NAT function of ProSe layer-3 UE-to-network relay. If the UE allocated an IPv4 address to a remote UE and enabled TCP usage to the remote UE, the UE shall include in the REMOTE UE REPORT message the TCP port range assigned to the remote UE in the NAT function of ProSe layer-3 UE-to-network relay. NOTE: Encrypted IMSI remote UE identities corresponding to different ProSe Key Management Function addresses need to be reported using separate REMOTE UE REPORT messages. Figure 6.6.3.2.1: Remote UE Report procedure