APPARATUS AND METHOD FOR TRANSMITTING AND RECEIVING BROADCAST SIGNAL

• US 20190052384A1
• Filed: 01/13/2017
• Published: 02/14/2019
• Est. Priority Date: 01/14/2016
• Status: Active Grant

• Current Assignee: LG Electronics, Inc. (LG Corporation)
• Original Assignee: LG Electronics, Inc. (LG Corporation)
• Inventors: KWAK, Minsung, YANG, Seungryul, KO, Woosuk, HONG, Sungryong
• Granted Patent: US 10,594,417 B2
• Time in Patent Office: Days
• CPC Class Codes: H04H 20/42 Arrangements for resource management
• CPC Class Codes: H04H 20/59 for emergency or urgency
• CPC Class Codes: H04H 60/72 using electronic programme guides [EPG] focusing on identifying broadcast space time H04H60/39 ; menu type display of EPG in television receivers H04N21/47
• CPC Class Codes: H04L 61/5069 for group communication, multicast communication or broadcast communication
• 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 65/70 Media network packetisation
• CPC Class Codes: H04L 65/80 Responding to QoS
• CPC Class Codes: H04L 69/02 Protocol performance
• CPC Class Codes: H04L 69/04 Protocols for data compression, e.g. ROHC
• CPC Class Codes: H04L 69/16 Implementation or adaptation of Internet protocol [IP], of transmission control protocol [TCP] or of user datagram protocol [UDP]
• CPC Class Codes: H04L 69/22 Parsing or analysis of headers

Abstract

A method for transmitting and receiving a broadcast signal is disclosed. The method for transmitting a broadcast signal, according to an embodiment of the present invention, comprises the steps of: performing delivery layer processing on broadcast service data and signaling information about the broadcast service data; performing UDP/IP encapsulating on the broadcast service data and the signaling information about the broadcast service data; and performing physical layer processing on the broadcast service data and the signaling information about the broadcast service data.

Claims

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

generating service layer signaling (SLS) information comprising information for discovery and acquisition of broadcast service data;

encoding the broadcast service data and the SLS information based on a delivery protocol;

generating service list table (SLT) information comprising bootstrap information for acquiring the SLS information;

User Datagram Protocol (UDP)/Internet Protocol (IP) encapsulating the broadcast service data, the SLS information, and the SLT information; and

generating a signal frame by physical layer processing the broadcast service data, the SLS information, and the SLT information,

wherein the delivery protocol is a Real-Time Object Delivery over Unidirectional Transport (ROUTE) protocol or an MPEG Media Transport (MMT) protocol.

2. The method according to claim 1,

wherein, when the broadcast service data is data for a broadcast service encoded based on the ROUTE protocol, the SLS information comprises a Service-based Transport Session Instance Description (S-TSID) fragment, and

wherein the S-TSID fragment comprises an RS element comprising information on a ROUTE session to which a content component of the broadcast service is delivered and an LS element comprising information on an LCT channel to which a content component of the broadcast service is delivered, and the LS element comprises a source flow element comprising information about a source flow.

3. The method of claim 2,

wherein the source flow element comprises a ContentInfo element for providing information for the content component carried in the LCT channel, and

wherein the ContentInfo element comprises at least one of a first element comprising information about a DASH representation delivered in the LCT channel or a second element comprising information about an AEA message associated with an EA related resource delivered in the LCT channel.

4. The method of claim 3,

wherein the first element comprises representation ID information indicating representation ID of the DASH representation.

5. The method of claim 4,

wherein the first element further comprises language information indicating a language of the DASH representation and type information indicating a type of the DASH representation.

6. The method of claim 3,

wherein the second element comprises AEA ID information indicating an ID of the AEA message.

7. The method of claim 2,

wherein the SLS information further comprises a Media Presentation Description (MPD) fragment, and

wherein the MPD fragment comprises content ID information for identifying a content of the broadcast service, and the type of the content ID information comprises at least one of an EIDR type using an EIDR ID registered in the EIDR registry as a content ID, an Ad-ID type using an Ad-ID registered in Ad-ID system as a content ID, or a user private ID type using an ID registered in a user private system as a content ID.

8. A broadcast signal transmitter, comprising:

a signaling generator configured to generate service layer signaling (SLS) information and service list table (SLT) information for broadcast service data, where the SLS information comprises information for discovery and acquisition of broadcast service data, and the SLT information comprises bootstrap information for acquisition of the SLS information;

a delivery layer encoder configured to encode the broadcast service data and the SLS information based on a delivery protocol;

a UDP/IP encapsulator configured to encapsulate User Datagram Protocol (UDP)/Internet Protocol (IP) on the broadcast service data, the SLS information, and the SLT information, respectively; and

a physical layer processor configured to generate a signal frame by physical layer processing the broadcast service data, the SLS information, and the SLT information and to generate a signal frame, wherein the delivery protocol is a Real-Time Object Delivery over Unidirectional Transport (ROUTE) protocol or an MPEG Media Transport (MMT) protocol.

9. The broadcast signal transmitter of claim 8,

wherein, when the broadcast service data is data for a broadcast service encoded based on the ROUTE protocol, the SLS information comprises a Service-based Transport Session Instance Description (S-TSID) fragment, and

wherein the S-TSID fragment comprises an RS element comprising information on a ROUTE session to which a content component of the broadcast service is delivered and an LS element comprising information on an LCT channel to which a content component of the broadcast service is delivered, and the LS element comprises a source flow element comprising information about a source flow.

10. The broadcast signal transmitter of claim 9,

wherein the source flow element comprises a ContentInfo element for providing information for the content component carried in the LCT channel, and

wherein the ContentInfo element comprises at least one of a first element comprising information about a DASH representation delivered in the LCT channel or a second element comprising information about an AEA message associated with an EA related resource delivered in the LCT channel.

11. The broadcast signal transmitter of claim 10,

wherein the first element comprises representation ID information indicating representation ID of the DASH representation.

12. The broadcast signal transmitter of claim 11,

wherein the first element further comprises language information indicating a language of the DASH representation and type information indicating a type of the DASH representation.

13. The broadcast signal transmitter of claim 11,

wherein the second element comprises AEA ID information indicating an ID of the AEA message.

14. The broadcast signal transmitter of claim 9,

wherein the SLS information further comprises a Media Presentation Description (MPD) fragment, and

wherein the MPD fragment comprises content ID information for identifying a content of the broadcast service, and the type of the content ID information comprises at least one of an EIDR type using an EIDR ID registered in the EIDR registry as a content ID, an Ad-ID type using an Ad-ID registered in Ad-ID system as a content ID, or a user private ID type using an ID registered in a user private system as a content ID.