摘要:
The present invention provides an apparatus for processing at least one PDU (protocol data unit) in an N layer in a transmitting side of a broadcast system, the apparatus comprising a PDU processor for receiving at least one higher (N+1) layer PDU and generating a PDU including the received at least one higher (N+1) layer PDU and a PDU post-processor for post processing the generated PDU and transmitting the post-processed PDU to a lower (N−1) layer.
摘要:
A broadcast signal transmission method according to an embodiment of the present invention may comprise the steps of: generating one or more input packets according to a first protocol; generating one or more link layer packets including the one or more input packets according to a second protocol; wherein each of the one or more link layer packets includes a header and a payload, and wherein the header includes packet type information which identifies types of the input packets, and payload configuration information which identifies whether the payload includes one input packets, or more than one input packets, or a part of one input packet; and generating a broadcast signal including the one or more link layer packets.
摘要:
The present invention provides a method for providing a broadcast service. A method by which a broadcast signal transmitter provides the broadcast service, according to the present invention, can comprise the steps of: encoding media data into a media stream; generating signaling information for signaling the media stream; multiplexing the encoded media stream and the signaling information; and transmitting a broadcast signal including the multiplexed media stream and signaling information.
摘要:
Provided is a method for transmitting a broadcast signal, the method including generating a plurality of input packets including broadcast data, generating at least one link layer packet using the input packets, wherein a header of the link layer packet includes packet type information and first length information, the packet type information indicates a type of an input packet included in a payload of the link layer packet, and the first length information indicates a length of the payload, generating a broadcast signal using the link layer packet, and transmitting the broadcast signal.
摘要:
A method of transmitting a broadcast signal, according to an embodiment of the present invention, includes: compressing headers of first IP packets including first broadcast data; generating first link layer packets including the header-compressed first IP packets and second link layer packets including second IP packets containing second broadcast data; generating third link layer packets including link layer signaling information providing information necessary to process the first link layer packets and the second link layer packets; and generating one or more broadcast frames including the first link layer packets, the second link layer packets and the third link layer packets.
摘要:
A method for processing transmission of a broadcast signal is disclosed. The method includes generating broadcast data for one or more broadcast services, generating first level signaling information including information for describing attribute of the one or more broadcast services, generating second level signaling information including information for listing the one or more broadcast service, generating link layer packets including the encoded broadcast data, the first level signaling information, and the second level signaling information, and generating a broadcast signal including the generated link layer packets.
摘要:
An apparatus for transmitting a broadcast signal comprising a IP packet generator generating Internet Protocol (IP) packets including broadcast data for a broadcast service, a link layer packet generator generating packets including the IP packets, wherein the link layer generator comprises, an overhead reduction processor performing header compressions on IP headers of the IP packets, an encapsulator encapsulating the IP packets having the IP headers into the packets, and a link layer signaling encoder en coding link layer signaling data including header compression information specifying whether the header compressions are applied to the IP headers, and a broadcast signal generator mapping the packets and the link layer signaling data into data pipes is disclosed.
摘要:
The present invention provides a method of transmitting broadcast signals. The method includes, generating input packets including broadcast content data; generating a link layer packet by using the generated input packets, wherein the link layer packet includes a link layer header and a link layer payload including the generated input packets, wherein the link layer header includes a count field indicating number of the input packets included in the link layer payload, wherein the link layer header further includes a length part, wherein the length part includes a plurality of length fields as many as that the count field indicates, wherein each of the length fields indicates length of the each input packets included in the link layer payload; generating a broadcast signal including the generated link layer packet; and transmitting the broadcast signal.
摘要:
A media processing apparatus according to embodiments comprises: a memory; and a processor connected to the memory, wherein the processor may be configured to receive media on the basis of a session comprising multicast and unicast, receive multicast server configuration information for the media, receive multicast gateway configuration information for the media, and control the media. A media processing method according to embodiments may comprise the steps of: receiving media on the basis of a session comprising multicast and unicast; receiving multicast server configuration information for the media; receiving multicast gateway configuration information about the media; and controlling the media.
摘要:
A method for transmitting broadcast signals, includes encapsulating input packets including Internet Protocol (IP) packets or Transport Stream (TS) packets into link layer packets in a link layer, each header of the link layer packets including packet type information representing a type of the input packets in a payload of each link layer packet and payload configuration information representing a configuration of the payload of each link layer packet, wherein for a first link layer packet including a single packet, the payload configuration information of the header in the first link layer packet has a value representing that the first link layer packet carries the single packet, the header further includes header mode information representing a length related to the first link layer packet.