Broadcast transmitting device, broadcast receiving device, operating method of the broadcast transmitting device, and operating method of the broadcast receiving device

Patent metadata

Field	Value
Publication number	US-2016212042-A1
Application number	US-201414912855-A
Country	US
Kind code	A1
Filing date	Aug 19, 2014
Priority date	Aug 19, 2013
Publication date	Jul 21, 2016
Grant date	—

Abstract

Provided is a broadcast receiving device receiving a File Delivery over Unidirectional Transport (FLUTE) protocol based packet stream. The device includes: a reception unit receiving a first packet setting a context that indicates a format of a header of the FLUTE protocol based packet stream and a second packet compressed on the basis of the context; and a control unit setting the context on the basis of the first packet and restoring the second packet on the basis of the context.

First claim

1 . A broadcast receiving device receiving Unidirectional Transport protocol based packet stream, the device comprising:
a reception unit receiving a first packet including context information that indicates a format of a header of the packet stream and a second packet compressed on the basis of the context information; and a control unit restoring the second packet on the basis of the context information.

2 . The device according to claim 1 , wherein the first packet comprises a static part that is static header information of a packet stream.

3 . The device according to claim 2 , wherein the static part comprises a field indicating a version number of Layered Coding Transport (LCT).

4 . The device according to claim 2 , further comprising a field indicating a size of Transport Session Identification (TSI) and a field indicating the TSI.

5 . The device according to claim 2 , further comprising a field indicating a size of information used for congestion-controlling a packet of a transport session and field indicating information used for congestion control.

6 . The device according to claim 1 , wherein the second packet comprises a dynamic part that is dynamic header information of a packet stream.

7 . The device according to claim 6 , wherein the dynamic part comprises a field indicating a source packet.

8 . The device according to claim 6 , wherein the dynamic part comprises a field indicating whether to terminate a session packet transmission and a field indicating whether to terminate a data packet transmission.

9 . The device according to claim 6 , wherein the dynamic part comprises a field indicating a header size of Layered Coding Transport (LCT).

10 . The device according to claim 1 , wherein the second packet comprises an uncompressed part that is uncompressed header information and the uncompressed part comprises at least one of a field indicating a Forward Error Correction (FEC) encoding identifier and a field indicating an identifier for identifying an encoding symbol.

11 . A broadcast transmitting device transmitting Unidirectional Transport protocol based packet stream, the device comprising:
a reception unit receiving the packet stream; and a transmission unit transmitting a first packet including context information that indicates a format of a header of the packet stream and a second packet compressed on the basis of the context information.

12 . The device according to claim 11 , wherein the first packet comprises a static part that is static header information of a packet stream.

13 . The device according to claim 12 , wherein the first packet comprises a static part that is static header information of a packet stream.

14 . The device according to claim 12 , further comprising a field indicating a size of Transport Session Identification (TSI) and a field indicating the TSI.

15 . The device according to claim 12 , further comprising a field indicating a size of information used for congestion-controlling a packet of a transport session and field indicating information used for congestion control.

16 . The device according to claim 11 , wherein the second packet comprises a dynamic part that is dynamic header information of a packet stream.

17 . The device according to claim 16 , wherein the dynamic part comprises a field indicating a source packet.

18 . The device according to claim 16 , wherein the dynamic part comprises a field indicating whether to terminate a session packet transmission and a field indicating whether to terminate a data packet transmission.

19 . The device according to claim 16 , wherein the dynamic part comprises a field indicating a header size of Layered Coding Transport (LCT).

20 . The device according to claim 11 , wherein the second packet comprises an uncompressed part that is uncompressed header information and the uncompressed part comprises at least one of a field indicating a Forward Error Correction (FEC) encoding identifier and a field indicating an identifier for identifying an encoding symbol.

Assignees

• Lg Electronics Inc

Inventors

• Kwon Woosuk
• Park Jungwook
• Oh Sejin
• Ko Woosuk
• Hong Sungryong
• Moon Kyoungsoo

Classifications

• H04L45/74 Primary

  Address processing for routing · CPC title

• H04L69/04 Primary

  Protocols for data compression, e.g. ROHC · CPC title

• H04L47/12

  Avoiding congestion; Recovering from congestion · CPC title

• H04L47/365

  Dynamic adaptation of the packet size · CPC title

• H04N21/64322

  IP · CPC title