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-2016234355-A1
Application number	US-201615018523-A
Country	US
Kind code	A1
Filing date	Feb 8, 2016
Priority date	Feb 10, 2015
Publication date	Aug 11, 2016
Grant date	—

Abstract

A method for processing a broadcast signal according to an embodiment of the present invention includes: encoding broadcast data for one or more broadcast services; encoding first level signaling information including information describing properties of the one or more broadcast services; encoding second level signaling information including information for listing the one or more broadcast services; and generating a broadcast signal including the encoded broadcast data, first level signaling information and second level signaling information.

First claim

What is claimed is:

1 . A method for processing a broadcast signal, comprising:
encoding broadcast data for one or more broadcast services; encoding first level signaling information including information describing properties of the one or more broadcast services; encoding second level signaling information including information for listing the one or more broadcast services; and generating a broadcast signal including the encoded broadcast data, first level signaling information and second level signaling information, wherein the first level signaling information includes first protocol signaling information and second protocol signaling information, and the second level signaling information includes source IP (Internet Protocol) address information indicating a source IP address of a packet delivering the first protocol signaling information or the second protocol signaling information and destination IP address information indicating a destination IP address of the packet.

2 . The method according to claim 1 , wherein the first protocol signaling information corresponds to service layer signaling information to which a real-time object delivery over unidirectional transport (ROUTE) protocol is applied, and the second protocol signaling information corresponds to service level signaling information to which an MPEG media transport (MMT) protocol is applied.

3 . The method according to claim 2 , wherein the second level signaling information further includes service level signaling protocol information indicating whether the first protocol signaling information or the second protocol signaling information is applied to each of the one or more broadcast services.

4 . The method according to claim 3 , wherein the encoding of the broadcast data for the one or more broadcast services comprises:
dividing the broadcast data into media delivery event (MDE) units corresponding to sets of bytes significantly presenting media included in the broadcast services; and generating one or more MDE blocks including the MDE data, wherein the encoded broadcast data contained in the broadcast signal includes the one or more MDE blocks.

5 . The method according to claim 4 , further comprising generating one or more layered coding transport (LCT) packets including the generated one or more MDE blocks,
wherein the encoded broadcast data is included in the broadcast signal in the form of the generated one or more LCT packets.

6 . The method according to claim 5 , wherein the one or more LCT packets include an extension header,
wherein the extension header includes time information related to processing of one of the one or more MDE blocks.

7 . The method according to claim 6 , wherein the time information includes third, fourth and fifth octets of a 64-bit NTP timestamp.

8 . An apparatus for processing a broadcast signal, comprising:
a data encoder for encoding broadcast data for one or more broadcast services; a first level signaling encoder for encoding first level signaling information including information describing properties of the one or more broadcast services; a second level signaling encoder for encoding second level signaling information including information for listing the one or more broadcast services; and a broadcast signal generator for generating a broadcast signal including the encoded broadcast data, first level signaling information and second level signaling information, wherein the first level signaling information includes first protocol signaling information and second protocol signaling information, and the second level signaling information includes source IP address information indicating a source IP address of a packet delivering the first protocol signaling information or the second protocol signaling information and destination IP address information indicating a destination IP address of the packet.

9 . The apparatus according to claim 8 , wherein the first protocol signaling information corresponds to service layer signaling information to which a ROUTE protocol is applied, and the second protocol signaling information corresponds to service level signaling information to which an MMT protocol is applied.

10 . The apparatus according to claim 9 , wherein the second level signaling information further include service level signaling protocol information indicating whether the first protocol signaling information or the second protocol signaling information is applied to each of the one or more broadcast services.

11 . The apparatus according to claim 10 , wherein the data encoder divides the generated broadcast data into MDE units corresponding to sets of bytes significantly presenting media included in the broadcast services and generates one or more MDE blocks including the MDE data,
wherein the encoded broadcast data contained in the broadcast signal includes the one or more MDE blocks.

12 . The apparatus according to claim 11 , wherein the data encoder generates one or more LCT packets including the generated one or more MDE blocks,
wherein the encoded broadcast data is included in the broadcast signal in the form of the generated one or more LCT packets.

13 . The apparatus according to claim 12 , wherein the one or more LCT packets include an extension header,
wherein the extension header includes time information related to processing of one of the one or more MDE blocks.

14 . The apparatus according to claim 13 , wherein the time information includes third, fourth and fifth octets of a 64-bit NTP timestamp.

Assignees

• Lg Electronics Inc

Inventors

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

Classifications

• H04L69/325 Primary

  in the network layer [OSI layer 3], e.g. X.25 (H04L69/16 takes precedence) · CPC title

• H04L65/611

  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 title

• H04L65/80 Primary

  Responding to QoS · CPC title