Broadcast transmission device and operating method thereof, and broadcast reception device and operating method thereof

Patent metadata

Field	Value
Publication number	US-2016337707-A1
Application number	US-201415109526-A
Country	US
Kind code	A1
Filing date	Dec 30, 2014
Priority date	Jan 2, 2014
Publication date	Nov 17, 2016
Grant date	—

Abstract

A broadcast reception device includes: a broadcast reception unit configured to receive a transport packet, the transport packet divided into a packet payload including a transport object that is a target of a transmission through a packet and a packet header signaling the packet payload; and a control unit configured to extract the packet header from the transport packet, extract first information relating to a presentation or decoding time point of the transport object from the extracted packet header, and output the transport object on the basis of the first information.

First claim

1 - 20 . (canceled)

21 . A broadcast reception device comprising:
a broadcast reception unit for receiving a physical layer frame including a plurality of physical layer pipes (PLP) and signaling information for the PLPs; and a control unit for obtaining an encoded transport packet from the physical layer frame, decoding the encoded transport packet for obtaining the transport packet from the PLP, the transport packet consist of a packet payload including a transport object and a packet header signaling the packet payload, and extracting the packet header from the transport packet, wherein the packet header includes a first extension header for supporting real-time delivery.

22 . The broadcast reception device according to claim 21 ,
wherein the first extension header includes a value indicating a type of the extension header and first information indicating a presentation timestamp of the transport object.

23 . The broadcast reception device according to claim 22 ,
wherein the packet header further includes a second extension header, the second extension header includes second information indicating a sender current time synchronizing a clock of a broadcast sender and a broadcast receiver.

24 . The broadcast reception device according to claim 22 ,
wherein the second extension header further includes third information indicating an expected remaining time for the transport object.

25 . The broadcast reception device according to claim 22 ,
wherein the first information comprises at least one of first time information including a timestamp of the transport object and second time information including a timestamp of a based timeline mapped into the first time information, the packet header comprises location information of data relating to the base timeline mapped into the first time information.

26 . The broadcast reception device according to claim 25 , wherein the control unit obtains information on whether the second time information is included in the transport packet from the packet header.

27 . The broadcast reception device according to claim 26 , wherein the control unit obtains at least one of format information of the first time information and format information of the second time information from the packet header.

28 . The broadcast reception device according to claim 21 , wherein the control unit obtains structure type information of the transport packet from the packet header.

29 . The broadcast reception device according to claim 28 , wherein the structure type of the transport packet comprises a first structure type including a packet header, a header extension, a payload identifier, and object data, a second structure type only including a packet header and a header extension, and a third structure type only including a packet header, a header extension, and object data.

30 . The broadcast reception device according to claim 29 , wherein the first structure type further comprises offset information of object data.

31 . An operating method of a broadcast reception device, the method comprising:
receiving a physical layer frame including a plurality of Physical Layer Pipes (PLP) and signaling infounation for the PLPs; obtaining a transport packet from the PLP, the transport packet consist of a packet payload including a transport object and a packet header signaling the packet payload; and extracting the packet header from the transport packet; wherein the packet header includes a first extension header for supporting real-time delivery, wherein the obtaining a transport packet comprises, obtaining an encoded transport packet from the physical layer frame, and decoding the encoded transport packet.

32 . The method according to claim 31 , wherein the first extension header includes a value indicating a type of the extension header and first information indicating a presentation timestamp of the transport object.

33 . The method according to claim 32 , wherein the packet header further includes a second extension header,
the second extension header includes second information indicating a sender current time synchronizing a clock of a broadcast sender and a broadcast receiver.

34 . The method according to claim 32 , wherein the second extension header further includes third information indicating an expected remaining time for the transport object.

35 . An operating method of a broadcast transmission device, the method comprising:
generating a transport packet, the transport packet consist of a packet payload including a transport object and a packet header signaling the packet payload; processing the transport packet to insert the processed transport packet into a physical layer frame including a Plurality of physical layer pipes(PLP) and signaling information for the PLPs; and transmitting the physical layer frame, wherein the packet header includes a first extension header for supporting real-time delivery, wherein the processing the transport packet comprises, FEC (Forward Error Correction) encoding the transport packet, and building the physical layer frame including the encoded transport packet.

36 . The method according to claim 35 , wherein the first extension header includes a value indicating a type of the extension header and first information indicating a presentation timestamp of the transport object.

37 . The method according to claim 36 , wherein the packet header further includes a second extension header,
the second extension header includes second information indicating a sender current time synchronizing a clock of a broadcast sender and a broadcast receiver.

38 . The method according to claim 36 , wherein the second extension header further includes third information indicating an expected remaining time for the transport object.

39 . A broadcast transmission device comprising:
a control unit for generating a transport packet, the transport packet consist of a packet payload including a transport object and a packet header signaling the packet payload, and processing the transport packet to insert the processed transport packet into a physical layer frame including a Plurality of physical layer pipes (PLP) and signaling information for the PLPs; and a transmission unit for transmitting the physical layer frame, wherein the packet header includes a first extension header for supporting real-time delivery, wherein the first extension header includes a value indicating a type of the extension header and first information indicating a presentation time stamp, wherein the control unit FEC (Forward Error Correction) encodes the transport packet, and builds the physical layer frame including the encoded transport packet.

Assignees

• Lg Electronics Inc

Inventors

• Oh Sejin
• Ko Woosuk
• Hong Sungryong
• Moon Kyoungsoo

Classifications

• H04N21/6112

  involving terrestrial transmission, e.g. DVB-T · CPC title

• H04L1/0083

  Formatting with frames or packets; Protocol or part of protocol for error control · CPC title

• H04N21/6125

  involving transmission via Internet (transmission by internet of broadcast information H04H60/82) · CPC title

• H04N21/2381 Primary

  Adapting the multiplex stream to a specific network, e.g. an Internet Protocol [IP] network {(transmission of MPEG streams over ATM H04L12/5601)} · CPC title

• H04N21/6437 Primary

  Real-time Transport Protocol [RTP] · CPC title