WO2014204225A1 - 방송 송수신 장치 및 방송 송수신 방법 - Google Patents
방송 송수신 장치 및 방송 송수신 방법 Download PDFInfo
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- WO2014204225A1 WO2014204225A1 PCT/KR2014/005404 KR2014005404W WO2014204225A1 WO 2014204225 A1 WO2014204225 A1 WO 2014204225A1 KR 2014005404 W KR2014005404 W KR 2014005404W WO 2014204225 A1 WO2014204225 A1 WO 2014204225A1
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/20—Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
- H04N21/23—Processing of content or additional data; Elementary server operations; Server middleware
- H04N21/236—Assembling of a multiplex stream, e.g. transport stream, by combining a video stream with other content or additional data, e.g. inserting a URL [Uniform Resource Locator] into a video stream, multiplexing software data into a video stream; Remultiplexing of multiplex streams; Insertion of stuffing bits into the multiplex stream, e.g. to obtain a constant bit-rate; Assembling of a packetised elementary stream
- H04N21/23605—Creation or processing of packetized elementary streams [PES]
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L65/00—Network arrangements, protocols or services for supporting real-time applications in data packet communication
- H04L65/60—Network streaming of media packets
- H04L65/61—Network streaming of media packets for supporting one-way streaming services, e.g. Internet radio
- H04L65/611—Network streaming of media packets for supporting one-way streaming services, e.g. Internet radio for multicast or broadcast
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/20—Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
- H04N21/23—Processing of content or additional data; Elementary server operations; Server middleware
- H04N21/234—Processing of video elementary streams, e.g. splicing of video streams, manipulating MPEG-4 scene graphs
- H04N21/2343—Processing of video elementary streams, e.g. splicing of video streams, manipulating MPEG-4 scene graphs involving reformatting operations of video signals for distribution or compliance with end-user requests or end-user device requirements
- H04N21/234309—Processing of video elementary streams, e.g. splicing of video streams, manipulating MPEG-4 scene graphs involving reformatting operations of video signals for distribution or compliance with end-user requests or end-user device requirements by transcoding between formats or standards, e.g. from MPEG-2 to MPEG-4 or from Quicktime to Realvideo
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/20—Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
- H04N21/23—Processing of content or additional data; Elementary server operations; Server middleware
- H04N21/235—Processing of additional data, e.g. scrambling of additional data or processing content descriptors
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/20—Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
- H04N21/23—Processing of content or additional data; Elementary server operations; Server middleware
- H04N21/236—Assembling of a multiplex stream, e.g. transport stream, by combining a video stream with other content or additional data, e.g. inserting a URL [Uniform Resource Locator] into a video stream, multiplexing software data into a video stream; Remultiplexing of multiplex streams; Insertion of stuffing bits into the multiplex stream, e.g. to obtain a constant bit-rate; Assembling of a packetised elementary stream
- H04N21/23611—Insertion of stuffing data into a multiplex stream, e.g. to obtain a constant bitrate
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/20—Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
- H04N21/23—Processing of content or additional data; Elementary server operations; Server middleware
- H04N21/236—Assembling of a multiplex stream, e.g. transport stream, by combining a video stream with other content or additional data, e.g. inserting a URL [Uniform Resource Locator] into a video stream, multiplexing software data into a video stream; Remultiplexing of multiplex streams; Insertion of stuffing bits into the multiplex stream, e.g. to obtain a constant bit-rate; Assembling of a packetised elementary stream
- H04N21/2362—Generation or processing of Service Information [SI]
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
- H04N21/434—Disassembling of a multiplex stream, e.g. demultiplexing audio and video streams, extraction of additional data from a video stream; Remultiplexing of multiplex streams; Extraction or processing of SI; Disassembling of packetised elementary stream
- H04N21/4343—Extraction or processing of packetized elementary streams [PES]
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
- H04N21/434—Disassembling of a multiplex stream, e.g. demultiplexing audio and video streams, extraction of additional data from a video stream; Remultiplexing of multiplex streams; Extraction or processing of SI; Disassembling of packetised elementary stream
- H04N21/4346—Disassembling of a multiplex stream, e.g. demultiplexing audio and video streams, extraction of additional data from a video stream; Remultiplexing of multiplex streams; Extraction or processing of SI; Disassembling of packetised elementary stream involving stuffing data, e.g. packets or bytes
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/60—Network structure or processes for video distribution between server and client or between remote clients; Control signalling between clients, server and network components; Transmission of management data between server and client, e.g. sending from server to client commands for recording incoming content stream; Communication details between server and client
- H04N21/63—Control signaling related to video distribution between client, server and network components; Network processes for video distribution between server and clients or between remote clients, e.g. transmitting basic layer and enhancement layers over different transmission paths, setting up a peer-to-peer communication via Internet between remote STB's; Communication protocols; Addressing
- H04N21/643—Communication protocols
- H04N21/64322—IP
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/80—Generation or processing of content or additional data by content creator independently of the distribution process; Content per se
- H04N21/85—Assembly of content; Generation of multimedia applications
- H04N21/854—Content authoring
- H04N21/85406—Content authoring involving a specific file format, e.g. MP4 format
Definitions
- the present invention relates to a broadcast transmitting and receiving apparatus and a broadcast transmitting and receiving method.
- a physical layer is encapsulated in an appropriate form so that a packet can be transmitted in order to transmit an IP datagram type packet in a wireless section.
- the ATSC M / H is configured in the form of RS frame payload.
- RS frame payload is composed of TP (Transport Packet) having a length of N bytes, 187 TPs are gathered into one RS frame payload.
- the N value corresponding to the column length of the RS frame is determined by a parade, which is a transmission unit of the physical layer of the ATSC-MH, and the N value is changed according to the RS frame.
- the header of the TP contains network protocol type information. However, it is not specifically defined what data to include in the TP to transmit and how to identify the included data.
- An object of the present invention is to add a signaling format in a TP in a broadcast system to perform signaling between an IP layer and a physical layer.
- an object of the present invention is to transmit a packet other than IP using a field that can indicate a packet type.
- an object of the present invention is to add signaling data to a payload of a TP, and indicate whether to transmit signaling data and whether signaling data is included.
- an object of the present invention is to include a specific type of packet in the payload of the TP, and to inform information about the specific type of packet included.
- an object of the present invention is to include an MPEG-2 TS in a payload and to transmit it, and to reduce overhead.
- a broadcast transmission device includes a control unit for generating a transport packet, a communication unit for transmitting a broadcast signal including the generated transport packet, the transport packet A payload field including data, a stuffing indicator field indicating whether a stuffing byte is included, and a network protocol field indicating a network protocol type of data included in the payload field.
- the network protocol field may be set to one of a signaling type, a packetized stream type, a fixed length packet type, a variable length packet type, or an MPEG-2 type.
- the payload field includes a service signaling table
- the service signaling table is a section indicating an order of a signaling table included in the payload field among all service signaling tables. It may include a section number and a last section number indicating a section number of the last service signaling table.
- the payload field includes a packaged stream descriptor
- the packetized stream descriptor includes packet type information and the number of packets included in the payload field. Information and length information of the packet may be included.
- the payload field includes one packet type information and one packet number. Information and one packet length information and a plurality of packets.
- the payload field may include the MPEG-2 TS packet except the packet type information, the number of packet information, and the packet length information.
- the MPEG-2 TS packet may include a plurality of fields, and the plurality of fields may be rearranged and rearranged in the transport packet.
- the transport packet further includes a pointer field, wherein the plurality of fields include a transport error indicator field, a payload unit start indicator field, a transport priority field, and A second group field including a first group field including a PID field, a transport scrambling control field, an adaptation field control field, and a continuity counter field, and a sync byte Field), the transport packet places the first group field in the payload field, the second group field in the pointer field, and excludes the sync byte field.
- the plurality of fields include a transport error indicator field, a payload unit start indicator field, a transport priority field, and A second group field including a first group field including a PID field, a transport scrambling control field, an adaptation field control field, and a continuity counter field, and a sync byte Field
- the broadcast transmission method includes generating a transport packet, transmitting a broadcast signal including the generated transport packet,
- the transport packet includes a payload field including data, a stuffing indicator field indicating whether a stuffing byte is included, and a network protocol field indicating a network protocol type of data included in the payload field. It includes.
- a broadcast receiving device includes a communication unit for receiving a broadcast signal including a transport packet, extracts a transport packet from the received broadcast signal, and extracts data from the transport packet. And a control unit for extracting a network protocol type and data, wherein the transport packet includes a payload field including the data, a stuffing indicator field indicating whether a stuffing byte is included, and the payload field. And a network protocol field indicating a network protocol type of the data included in the load field.
- the network protocol field may be set to one of a signaling type, a packetized stream type, a fixed length packet type, a variable length packet type, or an MPEG-2 type.
- the payload field includes a service signaling table
- the service signaling table is a section indicating an order of a signaling table included in the payload field among all service signaling tables. It may include a section number and a last section number indicating a section number of the last service signaling table.
- the payload field includes a packaged stream descriptor
- the packetized stream descriptor includes packet type information and the number of packets included in the payload field. Information and length information of the packet may be included.
- the payload field includes one packet type information and one packet number. Information and one packet length information and a plurality of packets.
- the payload field may include the MPEG-2 TS packet except the packet type information, the number of packet information, and the packet length information.
- the MPEG-2 TS packet may include a plurality of fields, and the plurality of fields may be rearranged and rearranged in the transport packet.
- the transport packet further includes a pointer field, wherein the plurality of fields include a transport error indicator field, a payload unit start indicator field, a transport priority field, and A second group field including a first group field including a PID field, a transport scrambling control field, an adaptation field control field, and a continuity counter field, and a sync byte Field), the transport packet places the first group field in the payload field, the second group field in the pointer field, and excludes the sync byte field.
- the plurality of fields include a transport error indicator field, a payload unit start indicator field, a transport priority field, and A second group field including a first group field including a PID field, a transport scrambling control field, an adaptation field control field, and a continuity counter field, and a sync byte Field
- the broadcast receiving method comprises the steps of: receiving a broadcast signal including a transport packet, extracting a transport packet from the received broadcast signal, the data of the transport packet; And extracting a network protocol type and data, wherein the transport packet includes a payload field including the data, a stuffing indicator field indicating whether a stuffing byte is included, and the payload field. And a network protocol field indicating a network protocol type of the data included in the load field.
- the present invention can shorten a time for data access of a receiver generated due to limited signaling data by adding a signaling format to the TP.
- the present invention can add signaling data by designating a signaling format even when transmission of signaling data that does not conform to the existing format is required.
- the present invention can transmit data using various packets other than IP even when using TP, which is considered only for IP transmission.
- the present invention can transmit a large number of MPEG-2 TS in the same bandwidth by reducing the overhead when transmitting the MPEG-2 TS using TP.
- TP transport packet
- FIG. 2 is a diagram illustrating a network protocol type according to an embodiment of the present invention.
- FIG. 3 illustrates an embodiment of a signaling table.
- 4 to 5 illustrate an embodiment in which a signaling type is added to a TP header.
- FIG. 6 illustrates an embodiment in which table data, which is one signal, is included in a plurality of TPs
- FIG. 7 is a diagram illustrating a network protocol type according to another embodiment of the present invention.
- FIG. 8 is a diagram illustrating a payload configuration form of a TP according to an embodiment of the present invention.
- FIG. 9 is a diagram illustrating a packet form included in a payload region of a TP according to an embodiment of the present invention.
- FIG. 10 is a view showing a payload configuration form of the TP according to another embodiment of the present invention.
- FIG. 11 is a diagram illustrating a network protocol type according to another embodiment of the present invention.
- FIG. 12 is a diagram illustrating a payload configuration form of a TP including an MPEG-2 TS according to an embodiment of the present invention.
- FIG. 13 is a diagram showing the structure of a packet when transmitting an MPEG-2 TS according to an embodiment of the present invention.
- FIG. 14 is a diagram illustrating a payload configuration form of a TP including an MPEG-2 TS according to an embodiment of the present invention.
- FIG. 15 illustrates a structure of a packet when a plurality of MPEG-2 TSs are transmitted according to an embodiment of the present invention.
- FIG. 16 illustrates a network protocol type in which MPEG-2 TS is defined according to an embodiment of the present invention.
- 17 is a diagram illustrating a method of reducing data when transmitting an MPEG-2 TS to a TP according to an embodiment of the present invention.
- FIG. 19 illustrates a method for reducing overhead when transmitting an MPEG-2 TS according to another embodiment of the present invention.
- 20 is a block diagram of a broadcast transmission apparatus according to an embodiment of the present invention.
- 21 is a block diagram of a broadcast receiving apparatus according to an embodiment of the present invention.
- FIG. 22 is a block diagram of a broadcast reception device according to another embodiment of the present invention.
- FIG. 23 is a flowchart of a broadcast transmission method according to an embodiment of the present invention.
- 24 is a flowchart of a broadcast receiving method according to an embodiment of the present invention.
- TP transport packet
- the TP includes a network protocol field, an error indicator field, a stuffing indicator field, a pointer field, a stuffing byte, and a payload. May contain fields.
- the header of the TP may include a network protocol field, an error indicator field, a stuffing indicator field, and a pointer field.
- the network protocol field may indicate which network protocol type the payload field of the TP includes.
- the network protocol field is described in detail below.
- the error indicator field may indicate whether an error is detected in the corresponding TP. For example, an error indicator field of 0 indicates that no error was detected and 1 indicates that an error was detected.
- the stuffing indicator field may indicate whether a stuffing byte is included in the corresponding TP. For example, a stuffing indicator field of 0 indicates that no stuffing bytes are included, and a value of 1 indicates that a length field and a stuffing byte are included before the payload.
- the stuffing byte is a value that fills between the header and the payload when the stuffing indicator is 1.
- the pointer field may indicate the beginning of a new network protocol packet in the payload portion. For example, if the pointer field is the maximum value (eg, 0x7FF), this may indicate that there is no start of a new network protocol packet. Or, a specific value of the pointer field indicates an offset value from the end of the header to the start of a new network protocol packet.
- the maximum value eg, 0x7FF
- the present invention relates to a signaling method capable of fast data access by a receiver of a digital broadcasting system using a TP.
- the present invention can signal by using a TP without a transmission function of signaling data.
- the signaling data may mean signaling information.
- the present invention may specify a signaling type in a network protocol tie.
- FIG. 2 is a diagram illustrating a network protocol type according to an embodiment of the present invention.
- a value indicating a signaling type is added to a network protocol field is illustrated.
- the network protocol value is 000
- this may indicate that data included in the payload is IPv4 type.
- 110 may indicate that data included in the payload is signaling data.
- 111 may indicate that data included in the payload is a framed packet type.
- the network protocol type shown in FIG. 2 is an embodiment. Therefore, depending on the system, each value from 001 to 110 may be designated as a required type. Alternatively, when classification is necessary according to the type of signaling data, one or more values may be specified.
- FIG. 3 is a diagram illustrating an embodiment of a signaling table.
- the network protocol type is set as shown in FIG. 2, if the value of the network protocol field is 110, this indicates that signaling data is included in the payload.
- the signaling table shown in FIG. 3 may be included in the payload.
- table_id The value of this 8-bit field shall identify the M / H Service Signaling table to which this section belongs.
- section_length-A 12-bit field It specifies the number of remaining bytes this table section immediately following this field. The value in this field shall not exceed 4093 (0xFFD).
- version_number-This 5-bit field is the version number of the entire M / H Service Signaling table. Each table is identified by the combination of table_id and table_id_extension. The version_number shall be incremented by 1 modulo 32 when a change in the information carried within the M / H Service Signaling table occurs.
- current_next_indicator-A 1-bit field which when set to 1 indicates that the MH_service_signaling_section sent is currently applicable.
- current_next_indicator When the current_next_indicator is set to 0, it indicates that the MH_service_signaling_section sent is not yet applicable and shall be the next MH_service_signaling_section with the same section_number, table_id_extension, and table_id to become valid.
- section_number-This 8-bit field shall give the section number of this M / H Service Signaling table section.
- the section_number of the first section in an M / H Service Signaling table shall be 0x00.
- the section_number shall be incremented by 1 with each additional section in the M / H Service Signaling table.
- last_section_number-This 8-bit field shall give the number of the last section (i.e., the section with the highest section_number) of the M / H Service Signaling table of which this section is a part.
- FIG. 4 is a diagram illustrating an embodiment in which a signaling type is added to a TP header.
- the signaling table in the TP may be arranged similarly to how the payload is arranged. Since the length of the TP is determined according to the resources of the physical layer to be transmitted, it may be N bytes as shown in FIG. 1. In this case, the length of the TP header may be 2 bytes, and the maximum size of the payload of one TP may be N-2 bytes.
- the service signaling table is equal to the payload length of the TP, that is, when the length of the table is N-2 bytes, the data structure of the TP is illustrated.
- the network protocol field may include a value indicating a signaling type. All signaling tables may be arranged in the payload field. Therefore, since there is no stuffing byte, the stuffing indicator field may be zero.
- FIG. 5 is a diagram illustrating an embodiment in which a signaling type is added to a TP header.
- the service signaling table when the service signaling table is smaller than the payload length of the TP, that is, when the length of the table is smaller than N-2 bytes, the data structure of the TP is illustrated. As shown in FIG. 5, the remaining portion of the signaling table may be filled with stuffing bytes. That is, the stuffing byte may be arranged between the TP header and the payload according to the stuffing byte placement rule of the TP.
- the network protocol field of the TP may include a value indicating a signaling type.
- a signaling table and a stuffing byte may be arranged. Therefore, the stuffing indicator field may be 1 because there is a stuffing byte.
- FIG. 6 is a diagram illustrating an example in which table data, which is one signal, is included in a plurality of TPs.
- the signaling table may apply a section partitioning method.
- the service signaling table is divided into three sections and disposed in the payload of the TP, respectively.
- the order of sections can be known according to the values of section number and last section number included in each section table, and once all sections are collected, one table can be constructed.
- the TP may include a payload field including a network protocol field, an error indicator field, a stuffing indicator field, a pointer field, a stuffing byte, and a service signaling table. Description of each field is omitted because it has been described above.
- the section number may indicate the order of the signaling table included in the payload field of the entire service signaling table.
- the last section number may indicate the section number of the last service signaling table.
- the first split signaling table may be arranged in the TP shown in FIG. 6 (1). Since the signaling table is divided into three, each partition signaling table may be assigned a number of 0, 1, and 2, respectively. That is, the section number of TP shown in FIG. 6 (1) equals 0 means that the first signaling table is divided, and the last section number of 2 means that the signaling table is divided into three parts. In other words, the TP shown in FIG. 6 (1) may indicate that a 1/3 signaling table is included using the section number and the last section number.
- a second split signaling table may be arranged in the TP shown in FIG. 6 (2).
- the section number of the TP shown in FIG. 6 (2) is 1 means that the second signaling table is divided, and the last section number of 2 means that the signaling table is divided into three parts.
- the TP shown in FIG. 6 (2) may indicate that a 2/3 signaling table is included using the section number and the last section number.
- the third split signaling table may be arranged in the TP shown in FIG. 6 (3).
- the section number of the TP shown in FIG. 6 (3) is 2 means that the third signaling table is divided, and the last section number of 2 means that the signaling table is divided into three parts.
- the TP shown in FIG. 6 (3) may indicate that the 3/3 signaling table is included using the section number and the last section number.
- the stuffing indicator may be zero because there is no stuffing byte.
- FIG. 7 is a diagram illustrating a network protocol type according to another embodiment of the present invention.
- value 101 of a network protocol field may be defined as a packetized stream type, and value 110 may be defined as a signaling type.
- the packetized stream type is defined, and thus the payload may include MPEG-2 TS packets and packets of a type not registered in the Internet Assigned Numbers Authority (IANA).
- the packetized stream may include an MPEG-2 TS packet, an MPEG media transport packet, and the like.
- each value from 001 to 101 can be assigned the required type.
- the payload may include the packet as it is or reconstructed.
- FIG. 8 is a diagram illustrating a payload configuration of a TP according to an embodiment of the present invention.
- the packetized stream may be reconstructed in a descriptor form and included in the payload of the TP.
- the descriptor of the packetized stream may include fields of a packet type, a packet length, and a packet byte.
- the packet type indicates the type of packet included in the payload portion of the transport packet. Specific types of packet types are described below.
- the packet length indicates the length of data in bytes of packet_bytes () included in the payload portion of the corresponding transport packet.
- the packet length may be included only when the packet type is not fixed.
- Packet bytes represent actual data of a packet included in a payload portion of a corresponding transport packet.
- FIG. 9 is a diagram illustrating a packet form included in a payload region of a TP according to an embodiment of the present invention.
- an exemplary embodiment may include packet type information.
- the packet type type may include a packet or a packetized stream having a fixed length, a packet or a packetized stream having a variable length, and the like.
- a packet or packetized stream having a fixed length means a packet or stream having a constant size, such as MPEG-2 TS.
- a packet or packetized stream having a variable length means that the length is variable according to the packet or the stream, such as an MPEG media transport packet.
- the payload of the transport packet including the packetized stream may be configured in other forms.
- FIG. 10 is a diagram illustrating a payload configuration of a TP according to another embodiment of the present invention.
- one TP may include a plurality of packets having the same form.
- the descriptor of the packetized stream may include fields of packet type, packet number information, packet length, and packet bytes.
- the packet type indicates the type of packet included in the payload portion of the transport packet. Specific types of packet types are the same as those described with reference to FIG. 9.
- Packet number information indicates the number of packets included in the payload portion of the transport packet.
- the packet length indicates the length of data in bytes of packet_bytes () included in the payload portion of the corresponding transport packet.
- the packet length may be included only when the packet type is not fixed.
- Packet bytes represent actual data of a packet included in a payload portion of a corresponding transport packet.
- one or more values may be designated for the network protocol type in the TP for each packet.
- FIG. 11 is a diagram illustrating a network protocol type according to another embodiment of the present invention.
- FIG. 11 an embodiment in which one or more values are specified for a network protocol type in a TP is shown.
- the network protocol type field may define a packet or packetized stream type having a fixed length, a packet or packetized stream type having a variable length, and a signaling type for each value.
- a packet or packetized stream having a fixed length means a packet or stream having a constant size, such as MPEG-2 TS.
- a packet or packetized stream having a variable length means that the length is variable according to the packet or the stream, such as an MPEG media transport packet.
- the signaling type means signaling data, such as a service signaling table.
- the payload of the TP may include one or more packets.
- FIG. 12 is a diagram illustrating a payload configuration form of a TP including an MPEG-2 TS according to an embodiment of the present invention.
- an embodiment of transmitting an MPEG-2 TS packet when a 3-bit long field value specifying a protocol type of a TP header is designated as a packetized stream type is illustrated.
- the MPEG-2 TS packet is described as an embodiment.
- the present invention is not limited to transmitting the MPEG-2 TS packet, but may be equally applied to a packet or a packetized stream having a fixed length.
- the protocol type may be designated as a packet having a fixed length or a packetized stream type. Depending on the system, each protocol type value may be defined as a required type.
- the packetized stream may be reconstructed in a descriptor form and included in the payload of the TP.
- the descriptor of the packetized stream may include fields of a packet type, a packet length, and a packet byte.
- the packet type indicates the type of packet included in the payload portion of the transport packet. As an example, if the packet type value is 0x00, an MPEG-2 TS type, if 0x01 is a packet or packetized stream type having a variable length, and 0x02-0xFF may be defined as a reserved area.
- the packet length indicates the length of data in bytes of packet_bytes () included in the payload portion of the corresponding transport packet.
- the packet length may be included only when the packet type is not fixed. Therefore, since the MPEG-2 TS packet is a packet having a fixed length, the packet length field may not be used when the packet type is MPEG-2 TS.
- Packet bytes represent actual data of a packet included in a payload portion of a corresponding transport packet.
- a 188 byte TS packet may be included as it is.
- FIG. 13 is a diagram illustrating the structure of a packet when transmitting an MPEG-2 TS according to an embodiment of the present invention.
- the TP may include a network protocol field, an error indicator field, a stuffing indicator field, a pointer field, and a payload field.
- the network protocol field may indicate which network protocol type the payload field of the TP includes. Since the TP of FIG. 13 includes the MPEG-2 TS, a value indicating the packetized stream type may be set in the network protocol field.
- the error indicator field may indicate whether an error is detected in the corresponding TP.
- the stuffing indicator field may indicate whether a stuffing byte is included in the corresponding TP.
- the pointer field may indicate the beginning of a new network protocol packet in the payload portion.
- the payload may include packet type information and MPEG-2 TS packets.
- the packetized stream descriptor may include packet type, packet length, and packet byte information. However, since the MPEG-2 TS has a fixed length of 188 bytes, the packet length and packet byte information may be excluded. That is, the payload may include only information that the packet type is MPEG-2 TS among the information about the packet.
- the payload may include a plurality of MEEG-2 TSs.
- FIG. 14 is a diagram illustrating a payload configuration of a TP including an MPEG-2 TS according to an embodiment of the present invention.
- the payload configuration form of a TP including a plurality of MPEG-2 TSs is illustrated.
- the payload may include MPEG-2 TS information in the form of a packetized stream descriptor.
- Each field is as follows.
- the packet type indicates the type of packet included in the payload portion of the transport packet.
- the type of packet type may include a packet or packetized stream having a fixed length such as MPEG-2 TS, or a packet or stream having a variable length such as MPEG media transport packet.
- the number of packets represents the number of packets included in the payload portion of the corresponding transport packet.
- the packet length indicates the length of data in bytes of packet_bytes () included in the payload portion of the corresponding transport packet.
- packet_bytes e.g., MPEG-2 TS
- packet length information may be included only once and may be regarded as having the same packet length for repeated packets. Can be.
- the packet length is 188 bytes.
- Packet bytes represent actual data of a packet included in a payload portion of a corresponding transport packet.
- a 188-byte TS packet may be included in the payload as it is.
- 15 is a diagram illustrating the structure of a packet when a plurality of MPEG-2 TSs are transmitted according to an embodiment of the present invention.
- a 3-bit packet type included in the payload of the TP may be a packetized stream type or an MPEG-2 TS type (eg, a fixed length).
- the number of packets may be set to three (for example, 00011 in binary) and the packet length to 188 (for example, 0x000BC).
- Three MPEG-2 TS packets may be located after the packet related information.
- 16 illustrates a network protocol type in which MPEG-2 TS is defined according to an embodiment of the present invention.
- a network protocol field defining a protocol type of data included in a payload is illustrated as an embodiment.
- the MPEG-2 TS type may be defined in one of several values representing a network protocol type.
- the MPEG-2 TS packet type may be defined as a 101 value.
- each value from 001 to 101 can be assigned the required type.
- 17 is a diagram illustrating a method of reducing data when transmitting an MPEG-2 TS through a TP according to an embodiment of the present invention.
- the network protocol type is designated as an MPEG-2 TS packet
- the packet type, length, etc. of the MPEG-2 TS packet are fixed, separate packet information may not be needed. Accordingly, the MPEG-2 TS packet may be included in the payload as it is. In this way, transmission data can be reduced when transmitting MPEG-2 TS.
- the MEPG-2 TS is an embodiment, and in the case of a packet or a packetized stream having a fixed length, transmission data may be reduced in the same manner as described with reference to FIG. 17.
- the payload size is larger than 188 bytes, which is the length of an MPEG-2 TS packet, a stuffing byte may be inserted.
- a value representing MPEG-2 TS may be set in a network protocol field. If the packet type included in the payload is set to MEEG-2 TS, and one MPEG-TS is included in one TP, packet information such as packet type, number of packets, and packet type are not needed. Accordingly, the MPEG-2 TS packet may be included in the payload as it is. If the payload size is the same as the MPEG-2 TS packet length, no stuffing bytes are required.
- the same network protocol field value may be set, and information on a packet such as a packet type, a packet number, and a packet type may be excluded. However, if the payload size is larger than the length of the MPEG-2 TS packet, a stuffing byte may be inserted into the remaining area.
- FIG. 17 a method of reducing transmission data when inserting and transmitting an MPEG-2 TS into a TP has been described.
- the overhead of 2 bytes corresponding to a TP header length is higher than that of the conventional MPEG-2 TS. May occur.
- the following describes how to reduce overhead when transmitting MPEG-2 TS to TP.
- 18 is a diagram illustrating a structure of an MPEG-2 TS packet.
- MPEG-2 TS packets include a Sync Byte field, a Transport Error Indicator field, a Payload Unit Start Indicator field, a Transport Priority field, and a Packet IDentifier. ) Field, a transport scrambling control field, an adaptation field control field, a continuity counter field, and a payload field.
- the Sync Byte field is 8 bits and has a fixed value of 0x47 to indicate the start of a TS packet.
- the Transport Error Indicator field is 1 bit and indicates whether or not an error occurs in the transmitted packet. For example, 1 if there is no error and 0 if there is an error.
- the Payload Unit Start Indicator field is 1 bit and indicates whether the start of original data is in a packet.
- the receiving device since the original data can be divided and sent, the receiving device needs to know which part of the original data contains the data included in the current packet so that the receiving device can reprocess the original data. 0 if the packet contains the middle part of the original data, and 1 if the packet contains the first part of the original data.
- the Transport Priority field is 1 bit and indicates the priority of a TS packet.
- the PID (Packet IDentifier) field is 13 bits and indicates the data of the payload data included in the packet.
- the transport scrambling control field is 2 bits and indicates whether or not the payload is scrambled.
- the Adaptation Field Control field is 2 bits and represents the presence or absence of an adaptation field.
- the Continuity Counter field is 4 bits. Packets with the same PID are transmitted with the continuous counter incremented by one.
- the following describes a specific method for reducing the overhead of the TP.
- 19 is a diagram illustrating a method of reducing overhead when transmitting an MPEG-2 TS according to another embodiment of the present invention.
- a transport error indicator field For convenience of description, a transport error indicator field, a payload unit start indicator field, a transport priority field, and a PID field are defined as a first group.
- a transport scrambling control field, an adaptation field control field, and a continuity counter field are defined as a second group.
- the Sync Byte field is set to a value fixed to 0x47 to know the start of the packet.
- the MPEG-2 TS packet except the synchronization byte of 1 byte has a fixed length of 187 bytes, there is no need for a pointer field to consider the variable length of the payload located in the TP. Therefore, some fields of the MPEG-2 TS packet may be allocated to the TP header.
- a detailed method of allocating MPEG-2 TS packets to TPs is as follows.
- the positions of the fields of the first group and the fields of the second group are swapped.
- a second group of 8 bits including a transport scrambling control field, an adaptation field control field, and a continuity counter field may be located at a pointer field position of the TP.
- the first group and the payload field including a transport error indicator field, a payload unit start indicator field, a transport priority field, and a PID field may include a payload of the TP. May be placed on the rod.
- the first group and payload fields of the MPEG-2 TS packet are 186 bytes in total.
- the TP header is two bytes, and the second group of MPEG-2 TS packets is included in the TP header. Therefore, since the TP including the MPEG-2 TS packet has a total of 188 bytes, the size of the transport packet is the same as when the MPEG-2 TS is directly transmitted. Therefore, the TP can be transmitted
- the plurality of fields included in the MPEG-2 TS packet may be rearranged and rearranged in the TP.
- 20 is a block diagram of a broadcast transmission apparatus according to an embodiment of the present invention.
- the broadcast transmission device 100 may include a control unit 110 and a communication unit 120.
- the controller 110 generates a transport packet.
- the controller 110 may include an encoder (not shown) to encode video or audio data.
- the controller 110 may include signaling information generator (not shown) to generate signaling information about encoded video or audio data. The generated signaling information may be included in the transport packet.
- the transport packet may include a payload field, a stuffing indicator field, and a network protocol field.
- the network protocol field may be set to one of a signaling type, a packetized stream type, a fixed length packet type, a variable length packet type, or an MPEG-2 type.
- the MPEG-2 TS packet may include a plurality of fields, and the plurality of fields may be rearranged and rearranged in the transport packet.
- the communication unit 120 transmits a broadcast signal including the generated transport packet.
- 21 is a block diagram of a broadcast receiving apparatus according to an embodiment of the present invention.
- the broadcast receiving device 200 includes a communication unit 210 and a control unit 220.
- the communication unit 210 receives a broadcast signal including a transport packet.
- the controller 220 extracts a transport packet from the received broadcast signal, and extracts a network protocol type and data of the data from the transport packet.
- the transport packet may be set to a value indicating one of a signaling type, a packetized stream type, a fixed length packet type, a variable length packet type, or an MPEG-2 type in a network protocol field.
- the type distinguished by the network protocol field indicates the protocol type of data included in the payload.
- the payload field may include a service signaling table. If the network protocol field is set to a packetized stream type, the payload field may include a packaged stream descriptor and a variable length such as a packetized stream having a fixed length such as MPEG-2 TS or an MPEG-2 media transport stream. It may include a packetized stream.
- the protocol type When the protocol type is set to a packetized stream having a fixed length such as MPEG-2 TS, the plurality of fields included in the MPEG-2 TS may be rearranged and rearranged in the transport packet. In this way, the overhead of a packetized stream having a fixed length can be reduced.
- FIG. 22 is a block diagram of a broadcast receiving apparatus according to another embodiment of the present invention.
- the broadcast receiving apparatus includes a channel synchronizer 305, a channel equalizer 310, a channel decoder 315, and a signaling decoder 320. ), A transport packet interface 325, a TP signaling parser 330, a common protocol stack 335, and a baseband operation controller 340. , SSC Processing Buffer & Parser (345), Service Map DB (350), A / V Processor (355), SG Processor (SG Processor) 360 and SG DB And (365).
- SSC Processing Buffer & Parser (345), Service Map DB (350), A / V Processor (355), SG Processor (SG Processor) 360 and SG DB And (365).
- the channel synchronizer 305 may synchronize symbol frequency and timing to enable proper decoding in the baseband.
- the channel equalizer 310 may compensate for the received signal when it is distorted due to the multipath, the Doppler effect, or the like.
- the channel decoder 315 may perform forward error correction (FEC) to recover the data from the received signal into meaningful data.
- FEC forward error correction
- the signaling decoder 320 may extract and decode the signaling data delivered from the channel.
- the transport packet interface 325 may extract the TP and combine the signaling information or the IP datagram from the protocol type of the TP.
- the TP signaling parser 330 may collect signaling section information delivered through the TP interface 325 to configure a completed signaling table.
- the common protocol stack 335 may temporarily store the completed signaling table.
- the baseband operation controller 340 may control various processing processes related to the baseband.
- the SSC Processing Buffer & Parser 345 may extract an SSC table section from an IP multicast stream including IP level signaling information as information required for service selection and scanning processes.
- the service map DB 350 may store data on a service map.
- the A / V Processor 355 may perform decoding and presentation processing on the received audio and video data.
- the SG processor 360 may extract announcement information from the received signal, manage a Service Guide (SG) DB, and provide a service guide.
- SG Service Guide
- the SG DB 365 may store data about the service guide.
- the communicator 210 of FIG. 21 may include a channel synchronizer 305 of FIG. 22, and the controller 220 of FIG. 21 includes a channel equalizer 310 of FIG. 22 and a channel.
- Decoder (315), Signaling Decoder (320), Transport Packet Interface (325), TP Signaling Parser (330), Common Protocol Stack (Common Protocol Stack) (335), Baseband Operation Controller (340), SSC Processing Buffer & Parser (345), Service Map DB (350), A / V Processor (A / V Processor) 355, an SG processor 360, and an SG DB 365.
- FIG. 23 is a flowchart illustrating a broadcast transmission method according to an embodiment of the present invention.
- the broadcast transmission device generates a transport packet (S110).
- the transport packet may include a payload field, a stuffing indicator field, and a network protocol field.
- the network protocol field indicates a protocol type of data included in the payload field. That is, the network protocol field may be set to a value for one of a signaling type, a packetized stream type, a fixed length packet type, a variable length packet type, or an MPEG-2 type.
- the payload field may include a service signaling table.
- the overhead of the TP may be increased by rearranging a plurality of fields included in the packetized stream and rearranging the fields in the TP.
- the broadcast transmission device transmits a broadcast signal including the generated transport packet (S120).
- 24 is a flowchart of a broadcast receiving method according to an embodiment of the present invention.
- the broadcast reception device receives a broadcast signal including a transport packet in operation S210.
- the broadcast receiving device extracts a transport packet from the received broadcast signal, and extracts a network protocol type and data of the data from the transport packet (S220).
- the signaling decoder included in the controller may extract and decode signaling data transmitted from the channel.
- the transport packet interface can extract the TP and combine signaling information or IP datagrams from the protocol type of the TP.
- the TP signaling parser may collect signaling section information delivered through the TP interface to configure a completed signaling table.
- the apparatus for transmitting and receiving broadcasts and the method for transmitting and receiving broadcasts according to the present invention are not limited to the configuration and method of the embodiments described above, but the embodiments may be all or part of each embodiment so that various modifications may be made. May be optionally combined.
- the present invention has industrial applicability which is usable and repeatable in the field of broadcast and video signal processing.
Abstract
Description
Claims (18)
- 전송 패킷(Transport Packet)을 생성하는 제어부;상기 생성된 전송 패킷을 포함하는 방송 신호를 전송하는 통신부;를 포함하며,상기 전송 패킷은,데이터가 포함되는 패이로드(Payload) 필드, 스터핑 바이트(stuffing byte)의 포함 여부를 나타내는 스터핑 지시자(Stuffing Indicator) 필드 및 상기 패이로드 필드에 포함되는 데이터의 네트워크 프로토콜 타입을 나타내는 네트워크 프로토콜 필드를 포함하는, 방송 송신 장치.
- 제1항에 있어서,상기 네트워크 프로토콜 필드는,시그널링 타입, 패킷화 스트림(packetized stream) 타입, 고정 길이의 패킷 타입, 가변 길이의 패킷 타입 또는 MPEG-2 타입 중 하나로 설정되는 것을 특징으로 하는 방송 송신 장치.
- 제2항에 있어서,상기 네트워크 프로토콜 필드가 시그널링 타입으로 설정되는 경우, 상기 패이로드 필드는 서비스 시그널링 테이블을 포함하고,상기 서비스 시그널링 테이블은,전체 서비스 시그널링 테이블 중 상기 패이로드 필드에 포함된 시그널링 테이블의 순서를 나타내는 섹션 넘버(section number) 및 마지막 서비스 시그널링 테이블의 섹션 넘버를 나타내는 라스트 섹션 넘버(last section number)를 포함하는 것을 특징으로 하는 방송 송신 장치.
- 제2항에 있어서,상기 네트워크 프로토콜 필드가 패킷화 스트림 타입으로 설정되는 경우, 상기 패이로드 필드는 패키화 스트림 디스크립터를 포함하고,상기 패킷화 스트림 디스크립터는,상기 패이로드 필드에 포함되는 패킷의 타입 정보, 패킷의 개수 정보 및 패킷의 길이 정보를 포함하는 것을 특징으로 하는 방송 송신 장치.
- 제4항에 있어서,상기 패킷 타입은,고정 길이의 패킷 타입 또는 가변 길이의 패킷 타입으로 설정되고,상기 패킷 타입이 고정 길이의 패킷 타입으로 설정되는 경우, 상기 패이로드 필드는 하나의 패킷 타입 정보, 하나의 패킷 개수 정보 및 하나의 패킷 길이 정보 및 복수의 패킷을 포함하는 것을 특징으로 하는 방송 송신 장치.
- 제2항에 있어서,상기 네트워크 프로토콜 필드가 MPEG-2 타입으로 설정되는 경우, 상기 패이로드 필드는 패킷의 타입 정보, 패킷의 개수 정보 및 패킷의 길이 정보를 제외하고 MPEG-2 TS 패킷을 포함하는 것을 특징으로 하는 방송 송신 장치.
- 제6항에 있어서,상기 MPEG-2 TS 패킷은,복수의 필드를 포함하고, 상기 복수의 필드는 재배열되어 상기 전송 패킷에 재배치되는 것을 특징으로 하는 방송 송신 장치.
- 제7항에 있어서,상기 전송 패킷은,포인터 필드를 더 포함하고,상기 복수의 필드는,전송 에러 지시자(Transport Error Indicator) 필드, 패이로드 유닛 시작 지시자(Payload Unit Start Indicator) 필드, 전송 우선 순위(Transport Priority) 필드 및 PID 필드를 포함하는 제1 그룹 필드;전송 스크램블 제어(Transport Scrambling Control) 필드, 적응 필드 제어(Adaptation Field Control) 필드 및 연속성 카운터(Continuity Counter) 필드를 포함하는 제2 그룹 필드; 및동기 바이트(Sync Byte) 필드;를 포함하고,상기 전송 패킷은,상기 제1 그룹 필드를 상기 패이로드 필드에 배치하고, 상기 제2 그룹 필드는 상기 포인터 필드에 배치하며, 상기 동기 바이트 필드를 제외시키는 것을 특징으로 하는 방송 송신 장치.
- 전송 패킷(Transport Packet)을 생성하는 단계;상기 생성된 전송 패킷을 포함하는 방송 신호를 전송하는 단계;를 포함하며,상기 전송 패킷은,데이터가 포함되는 패이로드(Payload) 필드, 스터핑 바이트(stuffing byte)의 포함 여부를 나타내는 스터핑 지시자(Stuffing Indicator) 필드 및 상기 패이로드 필드에 포함되는 데이터의 네트워크 프로토콜 타입을 나타내는 네트워크 프로토콜 필드를 포함하는, 방송 송신 방법.
- 전송 패킷을 포함하는 방송 신호를 수신하는 통신부;상기 수신된 방송 신호로부터 전송 패킷을 추출하고, 상기 전송 패킷으로부터 데이터의 네트워크 프로토콜 타입 및 데이터를 추출하는 제어부;를 포함하며,상기 전송 패킷은,상기 데이터가 포함되는 패이로드(Payload) 필드, 스터핑 바이트(stuffing byte)의 포함 여부를 나타내는 스터핑 지시자(Stuffing Indicator) 필드 및 상기 패이로드 필드에 포함되는 상기 데이터의 네트워크 프로토콜 타입을 나타내는 네트워크 프로토콜 필드를 포함하는, 방송 수신 장치.
- 제10항에 있어서,상기 네트워크 프로토콜 필드는,시그널링 타입, 패킷화 스트림(packetized stream) 타입, 고정 길이의 패킷 타입, 가변 길이의 패킷 타입 또는 MPEG-2 타입 중 하나로 설정되는 것을 특징으로 하는 방송 수신 장치.
- 제11항에 있어서,상기 네트워크 프로토콜 필드가 시그널링 타입으로 설정되는 경우, 상기 패이로드 필드는 서비스 시그널링 테이블을 포함하고,상기 서비스 시그널링 테이블은,전체 서비스 시그널링 테이블 중 상기 패이로드 필드에 포함된 시그널링 테이블의 순서를 나타내는 섹션 넘버(section number) 및 마지막 서비스 시그널링 테이블의 섹션 넘버를 나타내는 라스트 섹션 넘버(last section number)를 포함하는 것을 특징으로 하는 방송 수신 장치.
- 제11항에 있어서,상기 네트워크 프로토콜 필드가 패킷화 스트림 타입으로 설정되는 경우, 상기 패이로드 필드는 패키화 스트림 디스크립터를 포함하고,상기 패킷화 스트림 디스크립터는,상기 패이로드 필드에 포함되는 패킷의 타입 정보, 패킷의 개수 정보 및 패킷의 길이 정보를 포함하는 것을 특징으로 하는 방송 수신 장치.
- 제13항에 있어서,상기 패킷 타입은,고정 길이의 패킷 타입 또는 가변 길이의 패킷 타입으로 설정되고,상기 패킷 타입이 고정 길이의 패킷 타입으로 설정되는 경우, 상기 패이로드 필드는 하나의 패킷 타입 정보, 하나의 패킷 개수 정보 및 하나의 패킷 길이 정보 및 복수의 패킷을 포함하는 것을 특징으로 하는 방송 수신 장치.
- 제11항에 있어서,상기 네트워크 프로토콜 필드가 MPEG-2 타입으로 설정되는 경우, 상기 패이로드 필드는 패킷의 타입 정보, 패킷의 개수 정보 및 패킷의 길이 정보를 제외하고 MPEG-2 TS 패킷을 포함하는 것을 특징으로 하는 방송 수신 장치.
- 제15항에 있어서,상기 MPEG-2 TS 패킷은,복수의 필드를 포함하고, 상기 복수의 필드는 재배열되어 상기 전송 패킷에 재배치되는 것을 특징으로 하는 방송 수신 장치.
- 제16항에 있어서,상기 전송 패킷은,포인터 필드를 더 포함하고,상기 복수의 필드는,전송 에러 지시자(Transport Error Indicator) 필드, 패이로드 유닛 시작 지시자(Payload Unit Start Indicator) 필드, 전송 우선 순위(Transport Priority) 필드 및 PID 필드를 포함하는 제1 그룹 필드;전송 스크램블 제어(Transport Scrambling Control) 필드, 적응 필드 제어(Adaptation Field Control) 필드 및 연속성 카운터(Continuity Counter) 필드를 포함하는 제2 그룹 필드; 및동기 바이트(Sync Byte) 필드;를 포함하고,상기 전송 패킷은,상기 제1 그룹 필드를 상기 패이로드 필드에 배치하고, 상기 제2 그룹 필드는 상기 포인터 필드에 배치하며, 상기 동기 바이트 필드를 제외시키는 것을 특징으로 하는 방송 수신 장치.
- 전송 패킷을 포함하는 방송 신호를 수신하는 단계;상기 수신된 방송 신호로부터 전송 패킷을 추출하고, 상기 전송 패킷으로부터 데이터의 네트워크 프로토콜 타입 및 데이터를 추출하는 단계;를 포함하며,상기 전송 패킷은,상기 데이터가 포함되는 패이로드(Payload) 필드, 스터핑 바이트(stuffing byte)의 포함 여부를 나타내는 스터핑 지시자(Stuffing Indicator) 필드 및 상기 패이로드 필드에 포함되는 상기 데이터의 네트워크 프로토콜 타입을 나타내는 네트워크 프로토콜 필드를 포함하는, 방송 수신 방법.
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US14/894,226 US20160134908A1 (en) | 2013-06-19 | 2014-06-19 | Broadcasting transmission/reception apparatus and broadcasting transmission/reception method |
CA2915022A CA2915022A1 (en) | 2013-06-19 | 2014-06-19 | Broadcasting transmission/reception apparatus and broadcasting transmission/reception method |
EP14814333.2A EP3013058A4 (en) | 2013-06-19 | 2014-06-19 | Broadcasting transmission/reception apparatus and broadcasting transmission/reception method |
KR1020157032844A KR20160021759A (ko) | 2013-06-19 | 2014-06-19 | 방송 송수신 장치 및 방송 송수신 방법 |
JP2016519456A JP6333969B2 (ja) | 2013-06-19 | 2014-06-19 | 放送送受信装置および放送送受信方法 |
CN201480034894.4A CN105359534A (zh) | 2013-06-19 | 2014-06-19 | 广播发送/接收装置和广播发送/接收方法 |
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US20160134908A1 (en) | 2016-05-12 |
KR20160021759A (ko) | 2016-02-26 |
JP2016526361A (ja) | 2016-09-01 |
EP3013058A1 (en) | 2016-04-27 |
CA2915022A1 (en) | 2014-12-24 |
JP6333969B2 (ja) | 2018-05-30 |
CN105359534A (zh) | 2016-02-24 |
EP3013058A4 (en) | 2017-02-15 |
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