Broadcast signal transmission device, broadcast signal reception device, broadcast signal transmission method, and broadcast signal reception method

Abstract

The present invention presents a method for transmitting a broadcast signal. The method for transmitting a broadcast signal, according to the present invention, presents a system capable of supporting a next-generation broadcast service in an environment supporting next-generation hybrid broadcasting using a terrestrial broadcast network and an Internet network. In addition, presented is an efficient signaling method capable of covering both the terrestrial broadcast network and the Internet network in the environment supporting the next-generation hybrid broadcasting.

1 .- 12 . (canceled) 
     
     
         13 . A method of transmitting a broadcast signal by a broadcast signal transmission device, the method comprising:
 generating Internet protocol (IP) packets including Moving Picture Experts Group (MPEG) media transport protocol (MMTP) packets,   the MMTP packets including components of the service and second signaling information including information for identification of the service and information for referencing MMT package information, wherein:   the MMT package information includes transport information for MMTP in which the components are delivered, and asset information of an asset carried in the MMTP, the asset corresponds to a component and the components include video component, for the video component, the asset information includes a video properties descriptor information, the video properties descriptor information including information indicating whether temporal scalability is provided in the asset and information representing a number of the temporal layers for the temporal scalability;
 link layer processing the IP packets to generate link layer packets; and 
 transmitting the broadcast signal including the link layer packets. 
   
     
     
         14 . The method according to  claim 13 , wherein when the information indicates that the temporal scalability is provided in the asset, the video properties descriptor information further includes detailed information of a temporal layer. 
     
     
         15 . The method according to  claim 13 , wherein the second signaling information includes component information, the component information includes: an identifier of a component, a type of the component, and a role of the component. 
     
     
         16 . The method according to  claim 13 , wherein the method comprising:
 generating Real Time Object Delivery Over Unidirectional Transport (ROUTE) packets including components of a second service, that is different from the service, and third signaling information including ROUTE session information of ROUTE sessions in which the components of the second service are delivered; and   generating IP packets including the ROUTE packets.   
     
     
         17 . The method according to  claim 16 , wherein the IP packets includes first signaling information including service identification information of a service, protocol information representing a protocol used to deliver second signaling information for the service, and address information for packets carrying the second signaling information, and the protocol is an MMT Protocol, 
     
     
         18 . A method of receiving a broadcast signal by a broadcast signal reception device, the method comprising:
 processing the broadcast signal having one or more physical layer pipes (PLPs) to output link layer packets;   processing the link layer packets to acquire Internet protocol (IP) packets including Moving Picture Experts Group (MPEG) media transport protocol (MMTP) packets;   processing the IP packets,   wherein the MMPT packets include:   components of the service and second signaling information including information for identification of the service and information for referencing MMT package information, wherein:   the MMT package information includes transport information for MMTP in which the components are delivered, and asset information of an asset carried in the MMTP,   the asset corresponds to a component and the components include video component, for the video component, the asset information includes a video properties descriptor information, the video properties descriptor information including information indicating whether temporal scalability is provided in the asset and information representing a number of the temporal layers for the temporal scalability; and   processing the MMTP packets.   
     
     
         19 . The method according to  claim 18 , wherein when the information indicates that the temporal scalability is provided in the asset, the video properties descriptor information further includes detailed information of a temporal layer. 
     
     
         20 . The method according to  claim 18 , wherein the second signaling information includes component information, the component information includes: an identifier of a component, a type of the component, and a role of the component. 
     
     
         21 . The method according to  claim 18 , wherein the IP packets further include Real Time Object Delivery Over Unidirectional Transport (ROUTE) packets, that include components of a second service, that is different from the service, and third signaling information, the fourth signaling information including ROUTE session information of ROUTE sessions in which the components of the second service are delivered, the method comprising:
 processing the IP packets to output the ROUTE packets.   
     
     
         22 . The method according to  claim 21 , wherein the IP packets includes first signaling information including service identification information of a service, protocol information representing a protocol used to deliver second signaling information for the service, and address information for packets carrying the second signaling information, and the protocol is an MMT Protocol. 
     
     
         23 . A broadcast signal reception device comprising:
 a physical layer processor configured to process a broadcast signal having link layer packets for physical layer pipes (PLPs);   a processor configured to process Moving Picture Experts Group (MPEG) media transport protocol (MMTP) packets of Internet protocol (IP) packets in the link layer packets, wherein the MMPT packets include:   components of the service and second signaling information including information for identification of the service and information for referencing MMT package information, wherein:   the MMT package information includes transport information for MMTP in which the components are delivered, and asset information of an asset carried in the MMTP,   the asset corresponds to a component and the components include video component, for the video component, the asset information includes a video properties descriptor information, the video properties descriptor information including information indicating whether temporal scalability is provided in the asset and information representing a number of the temporal layers for the temporal scalability.   
     
     
         24 . A broadcast signal transmission device comprising:
 a generator generating Internet protocol (IP) packets including Moving Picture Experts Group (MPEG) media transport protocol (MMTP) packets,   the MMTP packets including components of the service and second signaling information including information for identification of the service and information for referencing MMT package information, wherein:   the MMT package information includes transport information for MMTP in which the components are delivered, and asset information of an asset carried in the MMTP,   the asset corresponds to a component and the components include video component, for the video component, the asset information includes a video properties descriptor information, the video properties descriptor information including information indicating whether temporal scalability is provided in the asset and information representing a number of the temporal layers for the temporal scalability;
 a link layer processor processing the IP packets to generate link layer packets; and 
 a transmitter transmitting the broadcast signal including the link layer packets.