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-10645674-B2
Application number	US-201514913639-A
Country	US
Kind code	B2
Filing date	Aug 21, 2015
Priority date	Aug 22, 2014
Publication date	May 5, 2020
Grant date	May 5, 2020

Abstract

Disclosed herein is a method and apparatus for transmitting and receiving a broadcast signal. The method for transmitting a broadcast signal includes encoding a broadcast service and signaling information of the broadcast service, generating the broadcast signal including the encoded broadcast service and signaling information, and transmitting the generated broadcast signal.

First claim

The invention claimed is:

1. A method for transmitting a broadcast signal, the method comprising:
generating service data;
generating first signaling information including information for a Real-Time Object Delivery over Unidirectional Transport (ROUTE) session carrying the service data and a Layered Coding Transport (LCT) channel in which a component of the service data is delivered,
wherein the first signaling information further includes first source Internet Protocol (IP) address information of the ROUTE session, first destination IP address information of the ROUTE session, first destination port information of the ROUTE session, and transport session identification information for the LCT channel;
generating Media Presentation Description (MPD) information for the service data,
wherein the MPD information includes location information at which the MPD information is available;
generating second signaling information which is used for acquiring the first signaling information and the MPD information,
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 of packets for the first signaling information, second destination IP address information of the packets, and second destination port information of the packets; and
transmitting the broadcast signal including the service data, the MPD information, the first signaling information, and the second signaling information,
wherein the second signaling information is transmitted based on an IP packet that is separate from a channel in which the first signaling information is transmitted.

2. The method according to claim 1 , wherein the first signaling information includes service identification information for identifying the service data.

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

4. The method according to claim 1 , wherein the second signaling information includes information 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 first signaling information includes identification information identifying at least one physical layer pipe in which the identified at least one LCT channel is delivered.

6. A method for receiving a broadcast signal, the method comprising:
receiving, by a receiver, the broadcast signal including at least one signal frame;
parsing the at least one signal frame from the broadcast signal;
parsing packets carrying service data in the at least one signal frame, first signaling information, Media Presentation Description (MPD) information and second signaling information from the at least one signal frame,
wherein the second signaling information is transmitted based on an IP packet that is separate from a channel in which the first signaling information is transmitted,
wherein the first signaling information includes information for a Real-Time Object Delivery over Unidirectional Transport (ROUTE) session carrying the service data and a Layered Coding Transport (LCT) channel in which a component of the service data is delivered,
wherein the first signaling information further includes first source Internet Protocol (IP) address information of the ROUTE session, first destination IP address information of the ROUTE session, first destination port information of the ROUTE session, and transport session identification information for the LCT channel,
wherein the MPD information is used for the service data, and the MPD information includes location information at which the MPD information is available,
wherein the second signaling information is used for acquiring the first signaling information and the MPD information,
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 of packets for the first signaling information, second destination IP address information of the packets, and second destination port information of the packets;
parsing the service data from the packets using the first signaling information; and
decoding, by a decoder, data in the service data using the MPD information.

7. The method according to claim 6 , wherein the first signaling information includes service identification information for identifying the service data.

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

9. The method according to claim 6 , wherein the second signaling information includes information 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 first signaling information includes identification information identifying at least one physical layer pipe in which the identified at least one LCT channel is delivered.

11. An apparatus for transmitting a broadcast signal, the apparatus comprising:
a signaling generator configured to generate first signaling information including information for a Real-Time Object Delivery over Unidirectional Transport (ROUTE) session carrying service data and a Layered Coding Transport (LCT) channel in which a component of the service data is delivered,
wherein the first signaling information further includes first source Internet Protocol (IP) address information of the ROUTE session, first destination IP address information of the ROUTE session, first destination port information of the ROUTE session, and transport session identification information for the LCT channel,
wherein the signaling generator further generates Media Presentation Description (MPD) information for content data,
wherein the MPD information includes location information at which the MPD information is available,
wherein the signaling generator further generates second signaling information which is used for acquiring the first signaling information and the MPD information,
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 of packets for the first signaling information, second destination IP address information of the packets, and second destination port information of the packets; and
a transmitter configured to transmit the broadcast signal including the service data, the MPD information, the first signaling information, and the second signaling information,
wherein the second signaling information is transmitted based on an IP packet that is separate from a channel in which the first signaling information is transmitted.

12. An apparatus for receiving a broadcas

Assignees

• Lg Electronics Inc

Inventors

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

Classifications

• H04N21/262

  Content or additional data distribution scheduling, e.g. sending additional data at off-peak times, updating software modules, calculating the carousel transmission frequency, delaying a video stream transmission, generating play-lists {(scheduling strategies for dispatcher in multiprogramming arrangements G06F9/4881; arrangements for scheduling broadcast services or broadcast-related services H04H60/06; flow control in packet networks H04L47/10; establishing a time schedule or organising the servicing of application requests H04L67/62)} · CPC title

• H04L69/16

  Implementation or adaptation of Internet protocol [IP], of transmission control protocol [TCP] or of user datagram protocol [UDP] · CPC title

• H04L1/0057

  Block codes (H04L1/0061, H04L1/0064 take precedence) · CPC title

• H04L1/0071

  Use of interleaving (interleaving per se H03M13/27) · CPC title

• H04L65/80

  Responding to QoS · CPC title