A broadcast signal transmitting device, according to one embodiment of the present invention, comprises: a header compression unit for performing a header compression on internet protocol (IP) packets including broadcast data, so as to configure full header packets and compressed header packets; a full header information extraction unit for extracting full header information from the full header packets; a signaling data generation unit for generating signaling packets including the full header information; and a broadcast signal transmission unit for transmitting the compressed header packets through a first transmission path through which general broadcast data is transmitted, and transmitting the signaling packets through a separate second transmission path which is different from the first transmission path.