A gateway for data communication in a vehicle includes: a first communication interface, configured to use a first communication protocol; and a second communication interface configured to use a second communication protocol. The gateway is configured to transmit data from the first to the second communication interface and to transmit data from the second communication interface to the first communication interface. The gateway further includes a media converter configured to convert quality of service information from the first to the second communication protocol and from the second to the first communication protocol.