Apparatus for transmitting broadcast signal, apparatus for receiving broadcast signal, method for transmitting broadcast signal and method for receiving broadcast signal

Patent metadata

Field	Value
Publication number	US-2016373489-A1
Application number	US-201514915111-A
Country	US
Kind code	A1
Filing date	Nov 3, 2015
Priority date	Nov 12, 2014
Publication date	Dec 22, 2016
Grant date	—

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.

First claim

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.

Assignees

• Lg Electronics Inc

Inventors

• Lee Jangwon
• Kwak Minsung
• Ko Woosuk
• Moon Kyoungsoo
• Hong Sungryong

Classifications

• H04L65/1066 Primary

  Session management · CPC title

• H04L69/326

  in the transport layer [OSI layer 4] (H04L69/16 takes precedence) · CPC title

• H04L65/4076

  Electricity · mapped topic

• H04L65/611 Primary

  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 title

• H04N21/4382

  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 title