Method for transmitting broadcast signals, apparatus for transmitting broadcast signals, method for receiving broadcast signals and apparatus for receiving broadcast signals

Patent metadata

Field	Value
Publication number	US-11212772-B2
Application number	US-202016829474-A
Country	US
Kind code	B2
Filing date	Mar 25, 2020
Priority date	Aug 22, 2014
Publication date	Dec 28, 2021
Grant date	Dec 28, 2021

Abstract

A method for transmitting a broadcast signal in a digital broadcast transmitter, includes generating components of a service, wherein the components of the service includes audio data or video data; generating first signaling information including session instance description information for at least one Real-Time Object Delivery over Unidirectional Transport (ROUTE) session and at least one Layered Coding Transport (LCT) channel in which the components of the service are delivered, wherein the session instance description information includes first source Internet Protocol (IP) address information of the at least one ROUTE session, first destination IP address information of the at least one ROUTE session, first destination port information of the at least one ROUTE session, and transport session identification information for the at least one LCT channel; and generating second signaling information which is used for acquiring the first signaling information.

First claim

What is claimed is:

1. A method for transmitting a broadcast signal in a digital broadcast transmitter, the method comprising:
generating components of a service, wherein the components of the service includes audio data or video data;
generating first signaling information including session instance description information for at least one Real-Time Object Delivery over Unidirectional Transport (ROUTE) session and at least one Layered Coding Transport (LCT) channel in which the components of the service are delivered,
wherein the session instance description information includes first source Internet Protocol (IP) address information of the at least one ROUTE session, first destination IP address information of the at least one ROUTE session, first destination port information of the at least one ROUTE session, and transport session identification information for the at least one LCT channel;
generating second signaling information which is used for acquiring the first signaling information,
wherein the second signaling information is used to support a rapid channel scan which allows a receiver to build a list of services,
wherein the second signaling information further includes bootstrap information and signaling transport mode information for indicating a type of delivery protocol of the first signaling information, and further the bootstrap information changes depending on the signaling transport mode information, and
wherein the bootstrap information included in the second signaling information includes second source IP address information, second destination IP address information, and second destination port information for the first signaling information,
wherein the at least one LCT channel is acquired based on the bootstrap information included in the second signaling information; and
transmitting the broadcast signal including the components of the service, the first signaling information, and the second signaling information based on at least one Physical Layer Pipe (PLP).

2. The method according to claim 1 , wherein the session instance description information includes service identification information for identifying the service.

3. The method according to claim 1 , wherein the second signaling information includes information for indicating a channel number of the service.

4. The method according to claim 1 , wherein the second signaling information includes information for indicating whether a format of the second signaling information is binary or extensible markup language (XML).

5. The method according to claim 1 , wherein the session instance description information includes identification information for identifying the at least one PLP in which the at least one LCT channel is delivered.

6. A method for receiving a broadcast signal in a digital broadcast receiver, the method comprising:
receiving the broadcast signal based on at least one Physical Layer Pipe (PLP);
parsing at least one signal frame from the broadcast signal;
parsing packets carrying components of a service, first signaling information and second signaling information from the at least one signal frame, wherein the components of the service includes audio data or video data,
wherein the first signaling information includes session instance description information for at least one Real-Time Object Delivery over Unidirectional Transport (ROUTE) session and at least one Layered Coding Transport (LCT) channel in which the components of the service are delivered,
wherein the session instance description information includes first source Internet Protocol (IP) address information of the at least one ROUTE session, first destination IP address information of the at least one ROUTE session, first destination port information of the at least one ROUTE session, and transport session identification information for the at least one LCT channel,
wherein the second signaling information is used for acquiring the first signaling information,
wherein the second signaling information is used to support a rapid channel scan which allows the digital broadcast receiver to build a list of services,
wherein the second signaling information further includes bootstrap information and signaling transport mode information for indicating a type of delivery protocol of the first signaling information, and further the bootstrap information changes depending on the signaling transport mode information,
wherein the bootstrap information included in the second signaling information includes second source IP address information, second destination IP address information, and second destination port information for the first signaling information, and
wherein the at least one LCT channel is acquired based on the bootstrap information included in the second signaling information;
parsing the audio data or the video data from the packets based on the second signaling information, and the first signaling information including the session instance description information;
decoding, by a decoder, the audio data or the video data; and
providing the service based on the decoded audio data or the decoded video data.

7. The method according to claim 6 , wherein the session instance description information includes service identification information for identifying the service.

8. The method according to claim 6 , wherein the second signaling information includes information for indicating a channel number of the service.

9. The method according to claim 6 , wherein the second signaling information includes information for indicating whether a format of the second signaling information is binary or extensible markup language (XML).

10. The method according to claim 6 , wherein the session instance description information includes identification information for identifying the at least one PLP in which the at least one LCT channel is delivered.

11. A digital broadcast transmitter for transmitting a broadcast signal, the digital broadcast transmitter comprising:
a generator configured to generate components of a service, wherein the components of the service includes audio data or video data,
wherein the generator is further configured to generate first signaling information including session instance description information for at least one Real-Time Object Delivery over Unidirectional Transport (ROUTE) session and at least one Layered Coding Transport (LCT) channel in which the components of the service are delivered,
wherein the session instance description information includes first source Internet Protocol (IP) address information of the at least one ROUTE session, first destination IP address information of the at least one ROUTE session, first destination port information of the at least one ROUTE session, and transport session identification information for the at least one LCT channel,
wherein the generator is further configured to generate second signaling information which is used for acquiring the first signaling information,
wherein the second signaling information is used to support a rapid channel scan which allows a receiver to build a list of services,
wherein the second signaling information further includes bootstrap information and signaling transport mode information for indicating a type of delivery protocol of the first signaling information, and further the bootstrap information changes depending on the signaling transport mode information, and
wherein the bootstrap information included in the second signaling information includes second source IP address information, second destination IP address information, and second destination port information for the first signaling information; and
a transmitting

Assignees

• Lg Electronics Inc

Inventors

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

Classifications

• H04W72/30 Primary

  Resource management for broadcast services · CPC title

• H04H20/10

  Arrangements for replacing or switching information during the broadcast or the distribution · CPC title

• H04L65/75

  Media network packet handling · CPC title

• 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

• H04L1/0042 Primary

  Encoding specially adapted to other signal generation operation, e.g. in order to reduce transmit distortions, jitter, or to improve signal shape (H04L1/0067 takes precedence) · CPC title