Method of configuring and transmitting an MMT transport packet

• US 9,319,721 B2
• Filed: 10/12/2012
• Issued: 04/19/2016
• Est. Priority Date: 10/13/2011
• Status: Active Grant

• Current Assignee: Electronics and Telecommunications Research Institute
• Original Assignee: Electronics and Telecommunications Research Institute
• Inventors: Bae, Seong Jun
• Primary Examiner(s): Vaughn, Jr., William C
• Assistant Examiner(s): Fuentes, Luis Perez
• Application Number:
  US13/651,059
• Publication Number:
  US 20130094563A1
• Time in Patent Office: 1,285 Days
• Field of Search: 375/240.01
• US Class Current: 1/1
• CPC Class Codes: H04L 12/1868 Measures taken after transmission, e.g. acknowledgments
• CPC Class Codes: H04L 12/1895 for short real-time information, e.g. alarms, notifications, alerts, updates
• CPC Class Codes: H04L 12/4633 Interconnection of networks using encapsulation techniques, e.g. tunneling
• CPC Class Codes: H04L 51/58 Message adaptation for wireless communication
• CPC Class Codes: H04L 65/1016 IP multimedia subsystem [IMS]
• CPC Class Codes: H04L 65/65 Network streaming protocols, e.g. real-time transport protocol [RTP] or real-time control protocol [RTCP]
• CPC Class Codes: H04L 67/06 specially adapted for file transfer, e.g. file transfer protocol [FTP]
• CPC Class Codes: H04N 21/236 Assembling of a multiplex stream, e.g. transport stream, by combining a video stream with other content or additional data, e.g. inserting a URL [Uniform Resource Locator] into a video stream, multiplexing software data into a video stream; Remultiplexing of multiplex streams; Insertion of stuffing bits into the multiplex stream, e.g. to obtain a constant bit-rate; Assembling of a packetised elementary stream multiplexing of data packets for data networks, e.g. RTP/UDP H04L65/00
• CPC Class Codes: H04N 21/23605 Creation or processing of packetized elementary streams [PES]
• CPC Class Codes: H04N 21/47217 for controlling playback functions for recorded or on-demand content, e.g. using progress bars, mode or play-point indicators or bookmarks specific graphical features in visual interfaces H04N21/4312
• CPC Class Codes: H04N 21/64322 IP
• CPC Class Codes: H04N 21/6437 Real-time Transport Protocol [RTP]
• CPC Class Codes: H04N 21/8455 involving pointers to the content, e.g. pointers to the I-frames of the video stream

Abstract

The present invention provides a MMT transport packet structure and a method and an apparatus configuring the structure. A method of configuring an MPEG Media Transport (MMT) transport packet for transmitting an MMT payload format, the method comprising: configuring the MMT transport packet so that the MMT transport packet includes at least one MMT payload format unit and a sequence number field for a packet stream, wherein the sequence number field maintains consistency with a sequence number field included in the MMT payload format.

Claims

1. An apparatus for generating MPEG Media Transport (MMT) packet structure by packetizing media data, the apparatus comprising:

an encapsulation unit configured to generate media processing unit (MPU) by encapsulating media fragment unit (MFU) and generate asset based on a media processing unit; and

a packetization unit configured to generate the MMT packet structure by packetizing the media processing unit included in the asset, wherein the MMT packet structure operates over a transport layer; and

the operations for the MMT packet further comprising;

an MPU Encapsulation, for performing packetization, fragmentation, and synchronization functions of transmitted media;

a Delivery of MMT package, for performing flow control, media multiplexing, error control, the scheduling for an delivery session, signaling for synchronization in a delivery environment, and signaling for adaptive delivery; and

a message Signaling, for performing signaling functions, including defining formats of message that manage a transfer and consumption of an MMT package,

a presentation, control and management of the transmitted media, and synchronization of the transmitted media;

wherein the packetization unit generates the packet including a packet sequence number field counting the packet transmitted,

wherein the asset comprises at least one MPU sharing the same MMT asset ID, and

wherein the MPU is identified by the MMT asset ID and a MPU sequence number.

2. The apparatus of claim 1, wherein the packet sequence number field is included in a header of the packet.

3. The apparatus of claim 1, wherein a value of the packet sequence number field is increased by 1 per the packet transmitted.

4. The apparatus of claim 1, wherein a predetermined data unit in the packet is packetized in predetermined transmission unit size.

5. The apparatus of claim 4, wherein the predetermined data unit comprises the media processing unit.

6. The apparatus of claim 1, wherein the packet sequence number field counting the packet transmitted corresponds to a sequence number field included in the payload format in the packet.

7. The apparatus of claim 1, wherein a Presentation Time Stamp (PTS)-equivalent function is provided through an Encapsulation (E)-layer function.

8. The apparatus of claim 7, wherein the E-layer function is provided by the media processing unit.

17. The apparatus of claim 1, wherein a single MPU includes an integral number of Access Units (AU), AU being the smallest media data entity to which timing information is attributed.

18. The apparatus of claim 17, wherein the MPU includes timed data or non-timed data, and for the timed data, the AU is not fragmented into multiple MPUs.

9. A method for generating MPEG Media Transport (MMT) packet structure by packetizing media data, the method comprising:

generating media processing unit (MPU) by encapsulating media fragment unit (MFU) and generating asset based on a media processing unit; and

generating the MMT packet structure by packetizing a media processing unit included in the asset,

wherein the MMT packet structure operates over a transport layer; and

the operations for the MMT packet further comprising;

an MPU Encapsulation, for performing packetization, fragmentation, and synchronization functions of transmitted media;

a Delivery of MMT package, for performing flow control, media multiplexing, error control, the scheduling for an delivery session, signaling for synchronization in a delivery environment, and signaling for adaptive delivery; and

a message Signaling, for performing signaling functions, including defining formats of message that manage a transfer and consumption of an MMT package,

a presentation, control and management of the transmitted media, and synchronization of the transmitted media;

wherein the generating the packet comprises generating the packet including a packet sequence number field counting the packet transmitted,

wherein the asset comprises at least one MPU sharing the same MMT asset ID, and

wherein the MPU is identified by the MMT asset ID and a MPU sequence number.

10. The method of claim 9, wherein the packet sequence number field is included in a header of the packet.

11. The method of claim 9, wherein a value of the packet sequence number field is increased by 1 per the packet transmitted.

12. The method of claim 9, wherein a predetermined data unit in the packet is packetized in predetermined transmission unit size.

13. The apparatus of claim 12, wherein the predetermined data unit comprises the media processing unit.

14. The method of claim 9, wherein the packet sequence number field counting the packet transmitted corresponds to sequence number field included in the payload format in the packet.

15. The method of claim 9, wherein a Presentation Time Stamp (PTS)-equivalent function is provided through an Encapsulation (E)-layer function.

16. The method of claim 15, wherein the E-layer function is provided by the media processing unit.

19. The method of claim 9, wherein a single MPU includes an integral number of Access Units (AU), AU being the smallest media data entity to which timing information is attributed.

20. The method of claim 19, wherein the MPU includes timed data or non-timed data, and for the timed data the AU is not fragmented into multiple MP Us.