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-2016345033-A1
Application number	US-201514909882-A
Country	US
Kind code	A1
Filing date	Dec 1, 2015
Priority date	Dec 10, 2014
Publication date	Nov 24, 2016
Grant date	—

Abstract

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

First claim

1 . A method for transmitting a broadcast signal, comprising:
generating service components of at least one service, service signaling information signaling each service and a service list table; encapsulating the service components, the service signaling information and the service list table into transport packets, transport packets delivering the service components or the service signaling information being transmitted through at least one transport session, transport packets delivering the service list table being transmitted through a pre-designated transport session; generating link layer packets by link-processing the transport packets; and generating a broadcast signal by physical-layer-processing the link layer packets and transmitting the broadcast signal, wherein the service list table includes information indicating a transport session through which service signaling information about each service is delivered.

2 . The method according to claim 1 , wherein the service signaling information includes user service bundle description (USBD),
wherein the USBD serves as a signaling hub describing technical information about a corresponding service.

3 . The method according to claim 2 , wherein the service signaling information further includes media presentation description (MPD),
wherein the USBD includes URI information referring to the MPD, and the MPD includes reproduction related information about service components of the corresponding service delivered through a broadcast network or a broadband network.

4 . The method according to claim 3 , wherein the MPD is full MPD describing reproduction related information about all service components included in the corresponding service.

5 . The method according to claim 2 , wherein the USBD further includes transmission related information about the service components of the corresponding service,
wherein the transmission related information includes broadcast information, wherein the broadcast information includes transmission related information about service components of the corresponding service, delivered through a broadcast network.

6 . The method according to claim 5 , wherein the transmission related information includes unicast information,
wherein the unicast information includes transmission related information about service components of the corresponding service, delivered through a broadband network.

7 . The method according to claim 2 , wherein the service signaling information further includes transport session description,
wherein the USBD further includes URI information for referring to the transport session description, wherein the transport session description includes session identifier information identifying sub-sessions of a transport session through which service components of the corresponding service are delivered.

8 . An apparatus for transmitting a broadcast signal, comprising:
a first module for generating service components of at least one service, service signaling information signaling each service and a service list table; a second module for encapsulating the service components, the service signaling information and the service list table into transport packets, transport packets delivering the service components or the service signaling information being transmitted through at least one transport session, transport packets delivering the service list table being transmitted through a pre-designated transport session; a third module for generating link layer packets by link-processing the transport packets; and a fourth module generating a broadcast signal by physical-layer-processing the link layer packets and transmitting the broadcast signal, wherein the service list table includes information indicating a transport session through which service signaling information about each service is delivered.

9 . The apparatus according to claim 8 , wherein the service signaling information includes USBD,
wherein the USBD serves as a signaling hub describing technical information about a corresponding service.

10 . The apparatus according to claim 9 , wherein the service signaling information further includes MPD,
wherein the USBD includes URI information referring to the MPD, and the MPD includes reproduction related information about service components of the corresponding service delivered through a broadcast network or a broadband network.

11 . The apparatus according to claim 10 , wherein the MPD is full MPD describing reproduction related information about all service components included in the corresponding service.

12 . The apparatus according to claim 9 , wherein the USBD further includes transmission related information about the service components of the corresponding service,
wherein the transmission related information includes broadcast information, wherein the broadcast information includes transmission related information about service components of the corresponding service, delivered through a broadcast network.

13 . The apparatus according to claim 12 , wherein the transmission related information includes unicast information,
wherein the unicast information includes transmission related information about service components of the corresponding service, delivered through a broadband network.

14 . The apparatus according to claim 9 , wherein the service signaling information further includes transport session description,
wherein the USBD further includes URI information for referring to the transport session description, wherein the transport session description includes session identifier information identifying sub-sessions of a transport session through which service components of the corresponding service are delivered.

Assignees

• Lg Electronics Inc

Inventors

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

Classifications

• H04N21/6338

  directed to network · CPC title

• H04N21/6162

  involving terrestrial transmission, e.g. DVB-T · CPC title

• H04N21/2362

  Generation or processing of Service Information [SI] · CPC title

• H04N21/6437

  Real-time Transport Protocol [RTP] · CPC title

• H04N21/6112

  involving terrestrial transmission, e.g. DVB-T · CPC title