A method and an apparatus for identifying a UE in an SAE network, and an MME are provided herein. The network traffic data include at least network traffic data for network traffic destined for the network node which meet a traffic type selection criteria and are routed by the routing devices to the network node. The color misalignment correcting unit is further configured to weight the time information by using the corresponding weighting coefficient and perform color misalignment correction. The host device may also send, to the portable device, a notification of which of the multiple protocols is being used by the host device. The support structure connects upper and lower connecting points of the shell.