Method and apparatus for transmitting and receiving packets in broadcast and communication system

• US 10,230,646 B2
• Filed: 06/22/2015
• Issued: 03/12/2019
• Est. Priority Date: 06/20/2014
• Status: Active Grant

• Current Assignee: Samsung Electronics Co. Ltd.
• Original Assignee: Samsung Electronics Co. Ltd.
• Inventors: Hwang, Sung-Hee, Yang, Hyun-Koo, Lim, Young-Kwon, Park, Kyung-Mo, Hwang, Sung-Oh
• Primary Examiner(s): Chase, Shelly A
• Application Number:
  US15/320,546
• Publication Number:
  US 20170163373A1
• Time in Patent Office: 1,359 Days
• CPC Class Codes: H04L 1/0002 by adapting the transmission rate
• CPC Class Codes: H04L 1/0033 arrangements specific to the transmitter
• CPC Class Codes: H04L 1/0041 Arrangements at the transmitter end
• CPC Class Codes: H04L 1/0045 Arrangements at the receiver end
• CPC Class Codes: H04L 1/0057 Block codes H04L1/0061, H04L1/0064 take precedence
• CPC Class Codes: H04L 1/0058 Block-coded modulation
• CPC Class Codes: H04L 1/0075 Transmission of coding parameters to receiver H04L1/0023 takes precedence
• CPC Class Codes: H04L 12/1868 Measures taken after transmission, e.g. acknowledgments
• CPC Class Codes: H04L 2001/0096 Channel splitting in point-to-point links
• CPC Class Codes: H04L 47/2416 Real-time traffic
• CPC Class Codes: H04L 47/801 Real time traffic
• CPC Class Codes: H04N 19/66 involving data partitioning, i.e. separation of data into packets or partitions according to importance
• CPC Class Codes: H04W 88/06 adapted for operation in multiple networks or having at least two operational modes, e.g. multi-mode terminals

Abstract

The present invention provides a method and an apparatus for transmitting and receiving packets in a broadcast and communication system. The present invention comprises: generating a repair packet by encoding a source packet with an error correction code; and transmitting the source packet to a first network and transmitting the repair packet to a second network, wherein the number of repair packets is determined according to the maximum transmission delay values of the first and second networks.

Claims

1. A method for transmitting packets in a broadcast and communication system, the method comprises:

generating repair packets by encoding source packets with error correction codes, and

transmitting the source packets over a first network and transmitting the repair packets over a second network,

wherein the number of repair packets is determined based on a maximum transmission delay of the first network, and

wherein a maximum transmission delay of the second network is smaller than the maximum transmission delay of the first network.

2. The method of claim 1, further comprising:

transmitting maximum transmission delays and error correction configuration information of the source packets and repair packets before transmitting the source packets and the repair packets.

3. The method of claim 1, wherein the first network is a communication network, and the second network is a broadcasting network.

4. The method of claim 1,

wherein for the source packets and the repair packets, an MPEG media transport (MMT) protocol is applied,

wherein the maximum transmission delays of the source packet and the repair packet are transmitted in a hypothetical receiver buffer model (HRBM) message, and

wherein the error correction configuration information is transmitted in an application layer forward error correction (AL-FEC) message.

5. A method for receiving packets in a broadcast and communication system, the method comprising:

receiving service signaling,

receiving source packets over a first network and receiving repair packets over a second network, and

recovering and decoding the source packets using the repair packets,

wherein the number of repair packets is determined based on a maximum transmission delay of the first network, and

wherein a maximum transmission delay of the second network is smaller than the maximum transmission delay of the first network.

6. The method of claim 5, further comprising:

receiving maximum transmission delays and error correction configuration information of the source packets and repair packets before receiving the source packets and the repair packets.

7. The method of claim 5, wherein the first network is a communication network, and the second network is a broadcasting network.

8. The method of claim 5,

wherein for the source packets and the repair packets, an MPEG media transport (MMT) protocol is applied,

wherein maximum transmission delays of the source packets and the repair packets are received in a hypothetical receiver buffer model (HRBM) message, and

wherein the error correction configuration information is received in an application layer forward error correction (AL-FEC) message.

9. An apparatus for transmitting packets in a broadcast and communication system, the apparatus comprises:

an error correction encoder configured to generate repair packets by encoding source packets with error correction codes;

a transceiver configured to;

transmit the source packets over a first network to a receiver, and

transmit the repair packets over a second network to the receiver; and

at least one processor configured to control the error correction encoder and the transceiver,

wherein the number of repair packets is determined based on a maximum transmission delay of the first network, and

wherein a maximum transmission delay of the second network is smaller than the maximum transmission delay of the first network.

10. The apparatus of claim 9, wherein the transceiver is further configured to transmit maximum transmission delays and error correction configuration information of the source packets and repair packets before transmitting the source packets and the repair packets.

11. The apparatus of claim 9, wherein the first network is a communication network, and the second network is a broadcasting network.

12. The apparatus of claim 9,

wherein for the source packets and the repair packets, an MPEG media transport (MMT) protocol is applied,

wherein the maximum transmission delays of the source packet and the repair packet are transmitted in a hypothetical receiver buffer model (HRBM) message, and

wherein the error correction configuration information is transmitted in an application layer forward error correction (AL-FEC) message.

13. An apparatus for receiving packets in a broadcast and communication system, the apparatus comprising:

a transceiver configured to;

receive service signaling,

receive source packets over a first network, and

receive repair packets over a second network; and

an error correction decoder configured to recover and decode the source packets using the repair packets,

wherein the number of repair packets is determined based on a maximum transmission delay of the first network, and

wherein a maximum transmission delay of the second network is smaller than the maximum transmission delay of the first network.

14. The apparatus of claim 13, wherein the transceiver is further configured to receive maximum transmission delays and error correction configuration information of the source packets and repair packets before receiving the source packets and the repair packets.

15. The apparatus of claim 13, wherein the first network is a communication network, and the second network is a broadcasting network.

16. The apparatus of claim 13,

wherein for the source packets and the repair packets, an MPEG media transport (MMT) protocol is applied,

wherein maximum transmission delays of the source packets and the repair packets are received in a hypothetical receiver buffer model (HRBM) message, and

wherein the error correction configuration information is received in an application layer forward error correction (AL-FEC) message.