Apparatus and method for delivering stream in a mobile broadcast system

• US 20060248211A1
• Filed: 03/31/2006
• Published: 11/02/2006
• Est. Priority Date: 04/02/2005
• Status: Active Grant

• Current Assignee: Samsung Electronics Co. Ltd.
• Original Assignee: Samsung Electronics Co. Ltd.
• Inventors: Lee, Ji-Hye, Hwang, Sung-Oh, Kim, Eun-Jung, Jung, Bo-Sun
• Granted Patent: US 8,145,209 B2
• Time in Patent Office: Days
• US Class Current: 709/231
• CPC Class Codes: H04H 20/38 Arrangements for distribution where lower stations, e.g. receivers, interact with the broadcast
• CPC Class Codes: H04H 2201/33 via the broadcast channel
• CPC Class Codes: H04H 60/90 Wireless transmission systems
• CPC Class Codes: H04L 12/189 in combination with wireless systems selective distribution or broadcast in wireless communication networks H04W4/06
• CPC Class Codes: H04L 65/1101 Session protocols
• CPC Class Codes: H04L 65/611 for multicast or broadcast systems for broadcast or conference H04L12/18; arrangements for broadcast or distribution combined with broadcast H04H20/00; arrangements for broadcast applications with a direct linkage to broadcast information or to broadcast space-time H04H60/00; selective distribution of broadcast services, e.g. multimedia broadcast multicast service [MBMS], H04W4/06
• CPC Class Codes: H04W 4/06 Selective distribution of broadcast services, e.g. multimedia broadcast multicast service [MBMS]; Services to user groups; One-way selective calling services
• CPC Class Codes: H04W 72/30 Resource management for broadcast services

Abstract

A method and system are provided for delivering a stream in a mobile broadcast system that receives stream contents of broadcast services (BCAST) from a content creation and provides the broadcast services to one terminal or one group of terminals via one of a broadcast distribution system (BDS) and an interaction network. The method involves requesting assignment of a bearer in which the stream is to be delivered, assigning a bearer in response to the bearer assignment request, adapting the stream to be appropriate for the assigned bearer, and delivering the adapted stream to the terminal in the assigned bearer.

Claims

1. A method for delivering a stream in a mobile broadcast system that receives stream contents of broadcast services (BCAST) from a content creation and provides the broadcast services to at least one terminal via at least one of a broadcast distribution system (BDS) and an interaction network, the method comprising:

delivering, by a stream application function(SA), a stream comprising an attribute from the content creation to a stream delivery function (SD);

sending, by the stream delivery function, a request for bearer assignment to a BDS service distribution in order to deliver the stream;

assigning, by the BDS service distribution, bearers used for stream delivery and sending a response comprising information on the assigned bearers to the stream delivery function; and

delivering, by the stream delivery function, a BCAST streaming service to a stream delivery client function in the terminal over a broadcast channel.

2. The method of claim 1, further comprising, upon receiving the stream from the content creation, translating, by the stream application function, the received stream to be compatible with the broadcast service.

3. The method of claim 1, further comprising, upon receiving a specific request from the BDS, adapting, by the stream delivery function, the stream to be compatible with the BDS-specific request.

4. The method of claim 1, further comprising, upon receiving a specific request from the BDS, performing protection on the adapted stream.

5. The method of claim 1, wherein the attribute comprises a media type and CODEC information.

6. The method of claim 2, wherein the translating of the received stream further comprises, if the stream is different from a BCAST standard stream in terms of a media type and CODEC information, translating the stream to be compatible with the broadcast service.

7. The method of claim 1, wherein the sending of the request comprises sending the bearer assignment request using an SD-B1 interface.

8. The method of claim 1, further comprising, before the delivering of the BCAST streaming service, notifying, by the stream delivery function, a start of the stream delivery to the stream delivery client function in the terminal via an SD-6 interface.

9. The method of claim 1, further comprising, before the delivering of the BCAST streaming service, notifying, by the stream delivery function, a start of the stream delivery to the stream delivery client function in the terminal via the BDS service distribution.

10. The method of claim 1, further comprising:

receiving, by the stream delivery function, a report on stream reception comprising reception quality from the stream delivery client function in the terminal via the interaction network;

analyzing, by the stream delivery function, the report on the stream reception; and

sending, by the stream delivery function, a report on stream reception to the BDS service distribution to improve stream reception quality.

11. The method of claim 1, further comprising:

receiving, by the BDS service distribution, a report on stream reception comprising reception quality from the stream delivery client function in the terminal via the interaction network;

analyzing, by the BDS service distribution, the report on the stream reception; and

sending, by the BDS service distribution, a report on stream reception to the stream delivery function to improve stream reception quality.

12. A method for delivering a stream in a mobile broadcast system that receives stream contents of broadcast services (BCAST) from a content creation and provides the broadcast services to at least one terminal via at least one of a broadcast distribution system (BDS) and an interaction network, the method comprising:

delivering, by a stream application function (SA), a stream comprising an attribute from the content creation to a stream delivery function (SD);

delivering, by the stream delivery function (SD), the stream to a BDS service distribution; and

delivering, by the BDS service distribution, the stream to a stream delivery client function in the terminal.

13. The method of claim 12, further comprising, upon receiving the stream, translating, by a stream application function, the received stream to be compatible with the broadcast service.

14. The method of claim 12, further comprising, adapting, by the stream delivery function, the stream to be compatible with the BDS.

15. The method of claim 12, further comprising, performing, by the BDS service distribution, service protection on the received stream.

16. The method of claim 12, wherein the attribute includes a media type and CODEC information.

17. The method of claim 13, wherein the translating of the received stream further comprises, if the stream is different from a BCAST standard stream in terms of a media type and CODEC information, translating the stream to be compatible with the broadcast service.

18. The method of claim 14, wherein the adapting of the translated stream comprises delivering the adapted stream using an SD-B1 interface.

19. The method of claim 14, wherein the adapting of the translated stream comprises adapting, by the stream delivery function, the stream to be compatible with a BDS-specific CODEC and a media type.

20. The method of claim 12, further comprising, notifying, by the stream delivery function, a start of the stream delivery to the BDS service distribution.

21. The method of claim 12, further comprising, notifying, by the BDS service distribution, a start of the stream delivery to the stream delivery client function in the terminal.

22. The method of claim 12, further comprising:

receiving, by the stream delivery function, a report on stream reception comprising reception quality from the stream delivery client function in the terminal via the interaction network;

analyzing, by the stream delivery function, the report on the stream reception; and

sending, by the stream delivery function, a report on stream reception to the BDS service distribution to improve stream reception quality.

23. The method of claim 12, further comprising:

receiving, by the BDS service distribution, a report on stream reception comprising reception quality from the stream delivery client function in the terminal via the interaction network;

analyzing, by the BDS service distribution, the report on the stream reception; and

sending, by the BDS service distribution, a report on stream reception to the stream delivery function to improve stream reception quality.

24. A method for sending a report on stream reception at a terminal in a mobile broadcast system that receives stream contents of broadcast services (BCAST) from a content creation and provides the broadcast services to at least one terminal via at least one of a broadcast distribution system (BDS) and an interaction network, the method comprising:

receiving, by a stream delivery function, a report on stream reception comprising reception quality from a stream delivery client function in the terminal via the interaction network;

analyzing, by the stream delivery function, the report on the stream reception; and

sending, by the stream delivery function, a report on stream reception to a BDS service distribution to improve stream reception quality.

25. The method of claim 24, further comprising, before the analyzing of the report, sending, by the stream delivery function, a response to the report on the stream reception to the stream delivery client function in the terminal.

26. The method of claim 24, further comprising, after the analyzing of the report, changing a forward error correction scheme to improve stream quality.

27. The method of claim 24, wherein the sending of the report further comprises sending, by the BDS service distribution, a response to the report on the stream reception.

28. A method for sending a report on stream reception at a terminal in a mobile broadcast system that receives stream contents of broadcast services (BCAST) from a content creation and provides the broadcast services to at least one terminal via at least one of a broadcast distribution system (BDS) and an interaction network, the method comprising:

receiving, by a BDS service distribution, a report on stream reception comprising reception quality, from a stream delivery client function in the terminal via the interaction network;

analyzing, by the BDS service distribution, the report on the stream reception; and

sending, by the BDS service distribution, a report on stream reception to a stream delivery function to improve stream reception quality.

29. The method of claim 28, wherein the receiving of the report further comprises sending, by the BDS service distribution, a response to the report on the stream reception to the stream delivery client function in the terminal.

30. The method of claim 28, further comprising, after the analyzing of the report, changing a forward error correction scheme to improve stream quality.

31. The method of claim 28, wherein the sending of the report further comprises sending, by the stream delivery function, a response to the report on the stream reception to the BDS service distribution

32. A system for delivering a stream in a mobile broadcast system that receives stream contents of broadcast services (BCAST) from a content creation and provides the broadcast services to at least one terminal via at least one of a broadcast distribution system (BDS) and an interaction network, the system comprising:

a stream application function for delivering a stream to a stream delivery function;

the stream delivery function for sending a request for bearer assignment to a BDS service distribution in order to deliver the stream, and delivering the stream to a stream delivery client function in the terminal; and

the BDS service distribution for assigning bearers used for stream delivery and sending a response with information on the assigned bearers to the stream delivery function.

33. The system of claim 32, wherein the stream application function translates the stream to be compatible with the broadcast service, upon receiving a stream with its attribute from the content creation.

34. The system of claim 32, wherein the stream delivery function, upon receiving a specific request from the BDS, adapting the stream to be compatible with the BDS-specific request.

35. The system of claim 32, wherein the stream delivery function performs protection on the stream.

36. The system of claim 32, wherein the stream delivery function receives a report on stream reception comprising reception quality from the stream delivery client function in the terminal via the interaction network, analyzes the report on the stream reception, and sends a report on stream reception to the BDS service distribution to improve stream reception quality.

37. The system of claim 32, wherein the BDS service distribution receives a report on stream reception comprising reception quality from the stream delivery client function in the terminal via the interaction network, analyzes the report on the stream reception, and sends a report on stream reception to the stream delivery function to improve stream reception quality.

38. A system for delivering a stream in a mobile broadcast system that receives stream contents of broadcast services (BCAST) from a content creation and provides the broadcast services to at least one terminal via at least one of a broadcast distribution system (BDS) and an interaction network, the system comprising:

a stream application function for delivering a stream to a stream delivery function;

the stream delivery function for delivering the stream to a BDS service distribution; and

the BDS service distribution for delivering the stream to a stream delivery client function in the terminal.

39. The system of claim 38, wherein the stream application function translates the received stream to be compatible with the broadcast service, upon receiving a stream with its attribute from the content creation.

40. The system of claim 38, wherein the stream delivery function adapts the stream to be compatible with the BDS.

41. The system of claim 38, wherein the BDS service distribution performs service protection on the stream.

42. The system of claim 38, wherein the stream delivery function receives a report on stream reception comprising reception quality from the stream delivery client function in the terminal via the interaction network, analyzes the report on the stream reception, and sends a report on stream reception to the BDS service distribution to improve stream reception quality.

43. The system of claim 38, wherein the BDS service distribution receives a report on stream reception comprising reception quality from the stream delivery client function in the terminal via the interaction network, analyzes the report on the stream reception, and sends a report on stream reception to the stream delivery function to improve stream reception quality.