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

• US 20170373918A1
• Filed: 03/08/2016
• Published: 12/28/2017
• Est. Priority Date: 03/08/2015
• Status: Active Grant

• Current Assignee: LG Electronics, Inc. (LG Corporation)
• Original Assignee: LG Electronics, Inc. (LG Corporation)
• Inventors: KWAK, Minsung, LEE, Jangwon, KWON, Woosuk, KO, Woosuk, MOON, Kyoungsoo, HONG, Sungryong
• Granted Patent: US 10,582,274 B2
• Time in Patent Office: Days
• CPC Class Codes: H04H 60/07 characterised by processes or methods for the generation
• CPC Class Codes: H04L 1/00 Arrangements for detecting or preventing errors in the information received correcting synchronisation H04L7/00
• CPC Class Codes: H04L 1/0071 Use of interleaving interleaving per se H03M13/27
• CPC Class Codes: H04L 65/40 Support for services or applications
• CPC Class Codes: H04L 67/02 based on web technology, e.g. hypertext transfer protocol [HTTP]
• CPC Class Codes: H04L 69/323 in the physical layer [OSI layer 1]
• CPC Class Codes: H04L 9/40 Network security protocols
• CPC Class Codes: H04N 21/235 Processing of additional data, e.g. scrambling of additional data or processing content descriptors
• CPC Class Codes: H04N 21/236 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 multiplexing of data packets for data networks, e.g. RTP/UDP H04L65/00
• CPC Class Codes: H04N 21/2362 Generation or processing of Service Information [SI]
• CPC Class Codes: H04N 21/242 Synchronization processes, e.g. processing of PCR [Program Clock References] arrangements for synchronising broadcast or distribution via plural systems in broadcast distribution systems H04H20/18
• CPC Class Codes: H04N 21/27 Server based end-user applications
• CPC Class Codes: H04N 21/4302 Content synchronisation processes, e.g. decoder synchronisation
• CPC Class Codes: H04N 21/4345 Extraction or processing of SI, e.g. extracting service information from an MPEG stream
• CPC Class Codes: H04N 21/462 Content or additional data management, e.g. creating a master electronic program guide from data received from the Internet and a Head-end, controlling the complexity of a video stream by scaling the resolution or bit-rate based on the client capabilities
• CPC Class Codes: H04N 21/6437 Real-time Transport Protocol [RTP]
• CPC Class Codes: H04N 21/858 Linking data to content, e.g. by linking an URL to a video object, by creating a hotspot

Abstract

A method of processing transmission of a broadcast signal includes generating broadcast data for one or more broadcast services, generating first level signaling information including information for describing attribute for the one or more broadcast services, generating second level signaling information including information for listing the one or more broadcast services, 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.

Claims

1-14. -14. (canceled)

15. A method of processing transmission of a broadcast signal, the method comprising:

generating broadcast data for one or more broadcast services;

generating first level signaling information comprising information for describing attribute for the one or more broadcast services;

generating second level signaling information comprising information for listing the one or more broadcast services;

generating a broadcast signal comprising the broadcast data, the first level signaling information, and the second level signaling information; and

wherein;

the second level signaling information generates a list of the broadcast service for supporting rapid channel scan and comprising a channel name and a channel number;

the second level signaling comprises bootstrap information for searching for the first level signaling information on the broadcast service; and

the second level signaling information comprises version information that is changed when data included in the second level signaling information is changed.

16. The method according to claim 15, further comprising generating link layer packets comprising the broadcast data, the first level signaling, and the second level signaling information,

wherein:

the generated link layer packets further comprises third level signaling information;

the generated link layer packets comprises packet type information for identifying a type of data included in the link layer packets;

the packet type information identifies a link layer packet comprising the third level signaling information among the link layer packets; and

the third level signaling information comprises first information for identifying a physical layer pipe (PLP) for transmitting the first level signaling information.

17. The method according to claim 15, wherein the second level signaling information comprises service level signaling protocol type information for identifying whether a Real time Object delivery over Unidirectional Transport (ROUTE) protocol or a MPEG Media Transport (MMT) protocol is used in order to transmit the first level signaling information for each broadcast service of the one or more broadcast services.

18. The method according to claim 15, wherein the second level signaling information further comprises URL information indicating a URL required to access a server for providing the first level signaling information transmitted through a broadband network or a server for providing an Electronic Service Guide (ESG) service.

19. The method according to claim 18, wherein the second level signaling information further comprises URL type information indicating whether the URL indicated by the URL information is a URL for access to a server for providing the first level signaling information or a URL for access to an Electronic Service Guide (ESG) service.

20. The method according to claim 15, wherein the second level signaling information further comprises provider identification information for identifying a broadcaster for providing the one or more broadcast services, and representative service identifier information for identifying a representative broadcast service of the broadcaster among the one or more broadcast services provided by the broadcaster identified by the provider identification information.

21. The method according to claim 15, wherein the second level signaling information comprises broadcaster number information indicating the number of two or more broadcasters that share one RF frequency, and service group information for listing broadcast services provided by each of the two or more broadcasters.

22. The method according to claim 15, wherein:

the generated broadcast signal further comprises fourth level signaling information comprising a transmission layer parameter required to transmit data included in the generated broadcast signal; and

the fourth level signaling information comprises second information for identifying a PLP for transmitting the second level signaling information.

23. An apparatus for processing transmission of a broadcast signal, the apparatus comprising:

a data encoder configured to generate broadcast data for one or more broadcast services;

a first level signaling encoder configured to generate first level signaling information comprising information for describing attribute for the one or more broadcast services;

a second level signaling encoder configured to generate second level signaling information comprising information for listing the one or more broadcast services;

a processor configured to generate link layer packets comprising the encoded broadcast data, the first level signaling information, and the second level signaling information; and

a broadcast signal generator configured to generate broadcast signal comprising the generated link layer packets,

wherein;

the second level signaling information generates a list of the broadcast service for supporting rapid channel scan and comprising a channel name and a channel number;

the second level signaling comprises bootstrap information for searching for the first level signaling information on the broadcast service; and

the second level signaling information comprises version information that is changed when data included in the second level signaling information is changed.

24. The apparatus according to claim 23, further comprising a processor configured to generate link layer packets comprising the broadcast data, the first level signaling, and the second level signaling information,

wherein:

the generated link layer packets further comprises third level signaling information that is transmitted in a lower layer than an Internet protocol (IP) and is acquirable before a receiver acquires the first level signaling information and the second level signaling information;

the generated link layer packets comprises packet type information for identifying a type of data included in the link layer packets;

the packet type information identifies a link layer packet comprising the third level signaling information among the link layer packets; and

the third level signaling information comprises first information for identifying a physical layer pipe (PLP) for transmitting the first level signaling information.

25. The apparatus according to claim 23, wherein the second level signaling information comprises service level signaling protocol type information for identifying whether a Real time Object delivery over Unidirectional Transport (ROUTE) protocol or a MPEG Media Transport (MMT) protocol is used in order to transmit the first level signaling information for each broadcast service of the one or more broadcast services.

26. The apparatus according to claim 23, wherein the second level signaling information further comprises URL information indicating a URL required to access a server for providing the first level signaling information transmitted through a broadband network or a server for providing an Electronic Service Guide (ESG) service.

27. The apparatus according to claim 26, wherein the second level signaling information further comprises URL type information indicating whether the URL indicated by the URL information is a URL for access to a server for providing the first level signaling information or a URL for access to an Electronic Service Guide (ESG) service.

28. The apparatus according to claim 23, wherein the second level signaling information further comprises provider identification information for identifying a broadcaster for providing the one or more broadcast services, and representative service identifier information for identifying a representative broadcast service of the broadcaster among the one or more broadcast services provided by the broadcaster identified by the provider identification information.

29. The apparatus according to claim 23, wherein the second level signaling information comprises broadcaster number information indicating the number of two or more broadcasters that share one RF frequency, and service group information for listing broadcast services provided by each of the two or more broadcasters.

30. The apparatus according to claim 23, wherein:

the generated broadcast signal further comprises fourth level signaling information comprising a transmission layer parameter required to transmit data included in the generated broadcast signal; and

the fourth level signaling information comprises second information for identifying a PLP for transmitting the second level signaling information.