APPARATUS FOR TRANSMITTING BROADCAST SIGNAL, APPARATUS FOR RECEIVING BROADCAST SIGNAL, METHOD FOR TRANSMITTING BROADCAST SIGNAL AND METHOD FOR RECEIVING BROADCAST SIGNAL

• US 20160373489A1
• Filed: 11/03/2015
• Published: 12/22/2016
• Est. Priority Date: 11/12/2014
• Status: Active Grant

• Current Assignee: LG Electronics, Inc. (LG Corporation)
• Original Assignee: LG Electronics, Inc. (LG Corporation)
• Inventors: LEE, Jangwon, KWAK, Minsung, KO, Woosuk, MOON, Kyoungsoo, HONG, Sungryong
• Granted Patent: US 10,200,415 B2
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: H04L 12/1868 Measures taken after transmission, e.g. acknowledgments
• CPC Class Codes: H04L 65/1066 Session management
• CPC Class Codes: H04L 65/40 Support for services or applications
• CPC Class Codes: H04L 65/611 for multicast or broadcast systems for broadcast or conference H04L12/18; arrangements for broadcast or distribution combined with broadcast H04H20/00; arrangements for broadcast applications with a direct linkage to broadcast information or to broadcast space-time H04H60/00; selective distribution of broadcast services, e.g. multimedia broadcast multicast service [MBMS], H04W4/06
• CPC Class Codes: H04L 65/80 Responding to QoS
• CPC Class Codes: H04L 69/324 in the data link layer [OSI layer 2], e.g. HDLC
• CPC Class Codes: H04L 69/326 in the transport layer [OSI layer 4] H04L69/16 takes precedence
• CPC Class Codes: H04L 9/40 Network security protocols
• CPC Class Codes: H04N 21/2343 involving reformatting operations of video signals for distribution or compliance with end-user requests or end-user device requirements video transcoding H04N19/40; media packet handling at the source H04L65/762
• CPC Class Codes: H04N 21/2362 Generation or processing of Service Information [SI]
• CPC Class Codes: H04N 21/2381 Adapting the multiplex stream to a specific network, e.g. an Internet Protocol [IP] network transmission of MPEG streams over ATM H04L12/5601
• CPC Class Codes: H04N 21/2383 Channel coding or modulation of digital bit-stream, e.g. QPSK modulation arrangements for detecting or preventing errors in the information received by adapting the channel coding H04L1/0009; analogue front ends or means for connecting modulators, demodulators or transceivers to a transmission line H04L27/0002
• CPC Class Codes: H04N 21/4345 Extraction or processing of SI, e.g. extracting service information from an MPEG stream
• CPC Class Codes: H04N 21/4382 Demodulation or channel decoding, e.g. QPSK demodulation analog front ends or means for connecting modulators, demodulators or transceivers to a transmission line H04L27/0002
• CPC Class Codes: H04N 21/6112 involving terrestrial transmission, e.g. DVB-T
• CPC Class Codes: H04N 21/6125 involving transmission via Internet transmission by internet of broadcast information H04H60/82
• CPC Class Codes: H04N 21/8586 by using a URL processing chained hypermedia data for information retrieval G06F16/94; information retrieval from the Internet by using URLs G06F16/955; URL in broadcast information H04H20/93; Web-based protocols H04L67/02

Abstract

The present invention provides a method for transmitting a broadcast signal, and a system capable of supporting future broadcast services in an environment supporting future hybrid broadcast using terrestrial broadcast networks and the Internet. In addition, the present invention provides efficient signaling methods using both terrestrial broadcast networks and the Internet in an environment supporting future hybrid broadcast.

Claims

1. A method for transmitting a broadcast signal, the method comprising:

generating service data of a broadcast service and service signaling information signaling the service data;

processing the service data and the service signaling information into a broadcast stream; and

transmitting the broadcast stream,

wherein the service data and the service signaling information are carried by plural transport packets, the plural transport packets delivered through at least one first transport session, each of the at least one first transport session including plural second transport sessions.

2. The method according to claim 1, wherein the broadcast stream includes a service list table, and

wherein the service list table includes bootstrap information indicating a first transport session carrying the service signaling information.

3. The method according to claim 1, wherein the service signaling information includes first information, second information and third information, and

wherein the first information references the second information and the third information, the second information includes information about the second transport sessions carrying the service data, and the third information includes description information about the service data.

4. The method according to claim 3, wherein at least one transport packet of the plural transport packets includes at least one fragment of one of the service signaling information, and

wherein the at least one transport packet includes a transport object identifier for identifying data included in the transport packet.

5. The method according to claim 4, wherein the transport object identifier includes fragment type information, fragment type extension information and version information, and

wherein the fragment type information identifies a type of the fragment included in the at least one transport packet, the fragment type extension information identifies sub-types of the fragment, and the version information identifies a version of data included in the at least one transport packet.

6. The method according to claim 5, wherein, when the transport packet includes plural fragments, the fragment type extension information indicates whether the fragment of the first information, the second information or the third information is included in the transport packet.

7. The method according to claim 5, wherein, when the transport packet includes a single fragment, the fragment type extension information has a value derived from an identifier of the single fragment.

8. The method according to claim 5, wherein the fragment type information, the fragment type extension information and the version information are used to filter the service signaling information.

9. The method according to claim 2, wherein the service signaling information is transmitted through a dedicated second transport session included in the first transport session indicated by the bootstrap information.

10. The method according to claim 2, wherein the processing of the service data and the service signaling information into a broadcast stream comprises:

generating link layer packets by encapsulating the service data, the service signaling information and a service list table; and

processing the link layer packet into the broadcast stream.

11. An apparatus for transmitting a broadcast signal, the apparatus comprising:

a first module that generates service data of a broadcast service and service signaling information signaling the service data;

a second module that processes the service data and the service signaling information into a broadcast stream; and

a third module that transmits the broadcast stream,

wherein the service data and the service signaling information are carried by plural transport packets, the plural transport packets delivered through at least one first transport session, each of the at least one first transport session including plural second transport sessions.

12. The apparatus according to claim 11, wherein the broadcast stream includes a service list table, and

wherein the service list table includes bootstrap information indicating a first transport session carrying the service signaling information.

13. The apparatus according to claim 11, wherein the service signaling information includes first information, second information and third information,

wherein the first information references the second information and the third information, the second information includes information about the second transport sessions carrying the service data, and the third information includes description information about the service data.

14. The apparatus according to claim 13,

wherein at least one transport packet of the plural transport packets includes at least one fragment of one of the service signaling information, and

wherein the at least one transport packet includes a transport object identifier for identifying data included in the transport packet.

15. The apparatus according to claim 14, wherein the transport object identifier includes fragment type information, fragment type extension information and version information, and

wherein the fragment type information identifies a type of the fragment included in the at least one transport packet, the fragment type extension information identifies sub-types of the fragment, and the version information identifies a version of data included in the at least one transport packet.

16. The apparatus according to claim 15, wherein, when the transport packet includes plural fragments, the fragment type extension information indicates whether the fragment of the first information, the second information or the third information is included in the transport packet.

17. The apparatus according to claim 15, wherein, when the transport packet includes a single fragment, the fragment type extension information has a value derived from an identifier of the single fragment.

18. The apparatus according to claim 15,

wherein the fragment type information, the fragment type extension information and the version information are used to filter the service signaling information.

19. The apparatus according to claim 12, wherein the service signaling information is transmitted through a dedicated second transport session included in the first transport session indicated by the bootstrap information.

20. The apparatus according to claim 12, wherein the second module generates link layer packets by encapsulating the service data, the service signaling information and a service list table and processes the link layer packet into the broadcast stream.