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

• US 9,860,571 B2
• Filed: 12/01/2015
• Issued: 01/02/2018
• Est. Priority Date: 12/10/2014
• Status: Active Grant

• Current Assignee: LG Electronics, Inc. (LG Corporation)
• Original Assignee: LG Electronics, Inc. (LG Corporation)
• Inventors: Kwak, Minsung, Moon, Kyoungsoo, Lee, Jangwon, Ko, Woosuk, Hong, Sungryong
• Primary Examiner(s): Sheleheda, James R
• Application Number:
  US14/909,882
• Publication Number:
  US 20160345033A1
• Time in Patent Office: 763 Days
• Field of Search: 725 54
• CPC Class Codes: H04H 20/28 Arrangements for simultaneous broadcast of plural pieces of information
• CPC Class Codes: H04H 20/93 which locates resources of other pieces of information, e.g. URL [Uniform Resource Locator]
• 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 21/6106 specially adapted to the downstream path of the transmission network
• 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 21/6162 involving terrestrial transmission, e.g. DVB-T
• CPC Class Codes: H04N 21/6175 involving transmission via Internet broadcast-related systems characterised by the transmission system being the Internet H04H60/82
• CPC Class Codes: H04N 21/6338 directed to network
• CPC Class Codes: H04N 21/6408 Unicasting
• CPC Class Codes: H04N 21/6437 Real-time Transport Protocol [RTP]
• CPC Class Codes: H04N 21/84 Generation or processing of descriptive data, e.g. content descriptors systems specially adapted for using meta-information in broadcast systems H04H60/73

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.

Claims

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

generating, by a hardware processor, service components of a broadcast service, service signaling information signaling the broadcast service and a service list table; and

generating, by a broadcast transmitter, a broadcast signal including the service components, the service signaling information and the service list table, and transmitting, by the broadcast transmitter, the broadcast signal,

wherein the service list table includes information for bootstrapping the service signaling information for the broadcast service,

wherein the service components are delivered through a first Real-Time Object Delivery over Unidirectional Transport (ROUTE) session and a second ROUTE session,

wherein the service signaling information includes a User Service Bundle Description (USBD), a Media Presentation Description (MPD), first session description data and second session description data,

wherein the first session description data includes both first Internet Protocol (IP)/User Datagram Protocol (UDP) information and second IP/UDP information, the first IP/UDP information identifies the first ROUTE session, and the second IP/UDP information identifies the second ROUTE session, and

wherein the second session description data for the first ROUTE session includes Transport Session Identifiers (TSIs) for identifying Layered Coding Transport (LCT) channels that carry service components delivered through the first ROUTE session, and the second session description data for the second ROUTE session includes TSIs for identifying LCT channels that carry service components delivered through the second ROUTE session.

2. The method according to claim 1, wherein the USBD serves as a signaling hub describing technical information about the broadcast service.

3. The method according to claim 2, wherein the USBD further includes transmission related information about the service components of the broadcast service, and

wherein the transmission related information includes broadcast information, including transmission related information about service components delivered through a broadcast network.

4. The method according to claim 3, wherein the transmission related information includes unicast information including transmission related information about service components delivered through a broadband network.

5. The method according to claim 1, wherein the MPD includes media representation related information for the service components of the broadcast service.

6. The method according to claim 5, wherein the MPD is a full MPD describing media representation related information about all service components included in the broadcast service regardless of delivery paths of the service components.

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

a hardware processor configured to generate service components of a broadcast service, service signaling information signaling the broadcast service and a service list table; and

a broadcast transmitter configured to generate a broadcast signal including the service components, the service signaling information and the service list table, and transmit the broadcast signal,

wherein the service list table includes information for bootstrapping the service signaling information for the broadcast service,

wherein the service components are delivered through a first Real-Time Object Delivery over Unidirectional Transport (ROUTE) session and a second ROUTE session,

wherein the service signaling information includes a User Service Bundle Description (USBD), a Media Presentation Description (MPD), first session description data and second session description data,

wherein the first session description data includes both first IP/UDP information and second IP/UDP information, the first IP/UDP information identifies the first ROUTE session, and the second IP/UDP information identifies the second ROUTE session, and

wherein the second session description data for the first ROUTE session includes Transport Session Identifiers (TSIs) for identifying Layered Coding Transport (LCT) channels that carry service components delivered through the first ROUTE session, and the second session description data for the second ROUTE session includes TSIs for identifying LCT channels that carry service components delivered through the second ROUTE session.

8. The apparatus according to claim 7, wherein the USBD serves as a signaling hub describing technical information about the broadcast service.

9. The apparatus according to claim 8, wherein the USBD further includes transmission related information about the service components of the broadcast service, and

wherein the transmission related information includes broadcast information including transmission related information about service components, delivered through a broadcast network.

10. The apparatus according to claim 9, wherein the transmission related information includes unicast information including transmission related information about service components delivered through a broadband network.

11. The apparatus according to claim 7, wherein the MPD includes media representation related information for the service components of the broadcast service.

12. The apparatus according to claim 11, wherein the MPD is a full MPD describing media representation related information about all service components included in the broadcast service regardless of delivery paths of the service components.