Method of configuring and transmitting an MMT transport packet

• US 10,728,591 B2
• Filed: 12/26/2018
• Issued: 07/28/2020
• 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): Perez-Fuentes, Luis
• Application Number:
  US16/232,891
• Publication Number:
  US 20190132623A1
• Time in Patent Office: 580 Days
• 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 generate media processing unit (MPU) by encapsulating at least one media fragment unit (MFU), generate asset including at least one media processing unit and generate an MMT package at least one asset; and

a packetization unit configured to generate the MMT packet structure by packetizing the media processing unit included in the asset,

wherein the MPU includes at least one access point indicating information regarding decoding or presentation of access unit,

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

wherein the MMT packet comprises a first MMT packet including composition information (CI) including information regarding spatial and temporal relationship between a plurality of assets.

2. The apparatus of claim 1, wherein the MMT packet further comprises a second MMT packet including the media processing unit separate out.

3. The apparatus of claim 1, 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 management of transport flows, media multiplexing, error control, the scheduling for an delivery session, signaling for synchronization in a delivery environment; and

a message Signaling, for signaling message for 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.

4. The apparatus of claim 1, 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.

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

6. The apparatus of claim 1, wherein the composition information includes temporal and spatial information regarding relationship between the plurality of assets.

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

generating media processing unit (MPU) by encapsulating at least one media fragment unit (MFU), generate asset including at least one media processing unit and generate an MMT package at least one asset; and

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

wherein the MPU includes at least one access point indicating information regarding decoding or presentation of access unit,

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

wherein the MMT packet comprises a first MMT packet including composition information (CI) including information regarding spatial and temporal relationship between a plurality of assets.

8. The method of claim 7, wherein the MMT packet further comprises a second MMT packet including the media processing unit separate out.

9. The method of claim 7, 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 management of transport flows, media multiplexing, error control, the scheduling for an delivery session, signaling for synchronization in a delivery environment; and

a message signaling, for signaling message for 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.

10. The method of claim 7, 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.

11. The method of claim 7, wherein a value of the packet sequence number field is increased by 1 per the MMT packet transmitted.