Methods and apparatus for creation and transport of multimedia content flows to a distribution network

• US 9,083,538 B2
• Filed: 12/09/2005
• Issued: 07/14/2015
• Est. Priority Date: 04/21/2004
• Status: Active Grant

• Current Assignee: Qualcomm, Inc.
• Original Assignee: Qualcomm, Inc.
• Inventors: Parekh, Nileshkumar J., Chandhok, Ravinder Paul (Rob), Krishnan, Ranganathan, Chen, An Mei
• Primary Examiner(s): DEANE JR, WILLIAM J
• Application Number:
  US11/298,279
• Publication Number:
  US 20060159069A1
• Time in Patent Office: 3,504 Days
• Field of Search: 370/352, 709/246, 709/226
• US Class Current: 1/1
• CPC Class Codes: H04L 12/18 for broadcast or conference , e.g. multicast
• CPC Class Codes: H04L 45/16 Multipoint routing
• CPC Class Codes: H04L 65/80 Responding to QoS
• CPC Class Codes: H04L 67/55 Push-based network services

Abstract

Methods and apparatus for creation and transport of multimedia content flows to a distribution network. The system includes a method for transporting a content flow to an access network for distribution to devices coupled to the access network. The method includes transmitting a request message to add the content flow to the access network, wherein the request message comprises one or more flow parameters associated with the content flow. The method also includes receiving a response message indicating that the content flow associated with the one or more flow parameters will be added to the access network, and delivering the content flow to the access network.

Claims

1. A method for transporting a content flow from a content server to an access network for broadcast distribution to user devices coupled to the access network, the method comprising:

transmitting a first request message from the content server to add the content flow for broadcast over the access network, wherein the request message comprises one or more flow parameters associated with the content flow;

receiving a first response message at the content server indicating that the content flow associated with the one or more flow parameters will not be added for broadcast over the access network, the first response message further indicating one or more acceptable flow parameters;

adjusting selected flow parameters associated with the content flow based on the one or more acceptable flow parameters included in the first response message;

transmitting a second request message from the content server to add the content flow for broadcast over the access network, wherein the second request message comprises the adjusted flow parameters associated with the content flow;

receiving a second response message at the content server indicating that the content flow associated with the adjusted flow parameters will be added for broadcast over the access network; and

delivering the content flow from the content server to the access network.

2. The method of claim 1, further comprising:

transmitting a subsequent request message from the content server to modify the content flow; and

receiving a subsequent response message at the content server indicating that the modification to the content flow will be accepted.

3. The method of claim 1, further comprising:

transmitting a subsequent request message from the content server to delete the content flow; and

receiving a subsequent response message at the content server indicating that the content flow will be deleted.

4. The method of claim 1, further comprising:

transmitting a subsequent request message from the content server to obtain a latency time of the content flow; and

receiving a subsequent response message at the content server indicating the latency time of the content flow.

5. The method of claim 1, wherein the step of transmitting comprises transmitting the request message to add the content flow, wherein the content flow comprises a non real-time media clip.

6. The method of claim 1, wherein the step of delivering comprises transmitting the content flow over a bearer channel to the access network.

7. A method for transporting a content flow from a content server to an access network for broadcast distribution to user devices coupled to the access network, the method comprising:

transmitting a request message from the content server to add the content flow for broadcast over the access network, wherein the request message comprises one or more flow parameters associated with the content flow;

receiving a response message at the content server indicating that the content flow will not be added to the access network;

adjusting selected flow parameters associated with the content flow to produce updated flow parameters in response to receiving the response message indicating that the content flow associated with the one or more flow parameters will not be added to the access network;

transmitting a new request message from the content server to add the content flow for broadcast over the access network, wherein the new request message comprises the updated flow parameters;

receiving a new response message at the content server indicating that the content flow associated with the updated flow parameters will be added for broadcast over the access network; and

delivering the content flow from the content server to the access network in response to receiving the new response message indicating that the content flow associated with the updated flow parameters will be added for broadcast over the access network.

8. The method of claim 7, wherein said adjusting comprises adjusting the selected flow parameters associated with the content flow to produce the updated flow parameters, wherein the updated flow parameters comprise a rate parameter.

9. The method of claim 7, wherein said adjusting comprises adjusting the selected flow parameters associated with the content flow to produce the updated flow parameters, wherein the updated flow parameters comprise a quality of service parameter.

10. A method for transporting a content flow from a content server to an access network for broadcast distribution to user devices coupled to the access network, the method comprising:

transmitting a heartbeat request message from the content server;

receiving a heartbeat response message at the content server that indicates a communication link is operational;

transmitting a request message from the content server to add the content flow for broadcast over the access network, wherein the request message comprises one or more flow parameters associated with the content flow;

receiving a first response message at the content server indicating that the content flow associated with the one or more flow parameters will not be added for broadcast over the access network, the first response message further indicating one or more acceptable flow parameters;

adjusting selected flow parameters associated with the content flow based on the one or more acceptable flow parameters included in the first response message;

transmitting a second request message from the content server to add the content flow for broadcast over the access network, wherein the second request message comprises the adjusted flow parameters associated with the content flow;

receiving a second response message at the content server indicating that the content flow associated with the adjusted flow parameters will be added for broadcast over the access network; and

delivering the content flow from the content server to the access network.

11. The method of claim 10, further comprising:

transmitting a reset request message from the content server that identifies a first flow state; and

receiving a reset response message at the content server that identifies the first flow state.

12. The method of claim 10, further comprising:

receiving a reset request message at the content server that identifies a first flow state;

adjusting a current flow state to match the first flow state; and

transmitting a reset response message from the content server that comprises the current flow state.

13. An apparatus for transporting a content flow from a content server to an access network for broadcast distribution to user devices coupled to the access network, the apparatus comprising:

a processor;

transmitting logic that operates to transmit a first request message from the content server to add the content flow for broadcast over the access network, wherein the request message comprises one or more flow parameters associated with the content flow;

receiving logic that operates to receive a response message at the content server indicating that the content flow associated with the one or more flow parameters will not be added for broadcast over the access network, the response message further indicating one or more acceptable flow parameters; and

logic that operates to adjust selected flow parameters associated with the content flow based on the one or more acceptable flow parameters;

wherein the transmitting logic further operates to transmit a second request message from the content server to add the content flow for broadcast over the access network, wherein the request message comprises the adjusted flow parameters associated with the content flow; and

wherein the receiving logic further operates to receive a response message at the content server indicating that the content flow associated with the adjusted flow parameters will be added for broadcast over the access network.

14. The apparatus of claim 13, wherein the transmitting logic operates to transmit a subsequent request message from the content server to modify the content flow, and the receiving logic operates to receive a subsequent response message at the content server indicating that the modification to the content flow will be accepted.

15. The apparatus of claim 13, wherein the transmitting logic operates to transmit a subsequent request message from the content server to delete the content flow, and the receiving logic operates to receive a subsequent response message at the content server indicating that the content flow will be deleted.

16. The apparatus of claim 13, wherein the transmitting logic operates to transmit a subsequent request message from the content server to obtain a latency time of the content flow, and the receiving logic operates to receive a subsequent response message at the content server indicating the latency time.

17. The apparatus of claim 13, wherein the content flow comprises a non real time media clip.

18. An apparatus for transporting a content flow from a content server to an access network for broadcast distribution to user devices coupled to the access network, the apparatus comprising:

a processor;

logic for transmitting a request message from the content server to add the content flow for broadcast over the access network, wherein the request message comprises one or more flow parameters associated with the content flow;

logic for receiving the response message at the content server indicating that the content flow will not be added for broadcast over the access network;

logic for adjusting selected flow parameters associated with the content flow to produce updated flow parameters in response to receiving the response message indicating that the content flow associated with the one or more flow parameters will not be added for broadcast over the access network;

logic for transmitting a new request message from the content server to add the content flow for broadcast over the access network, wherein the new request message comprises the updated flow parameters;

logic for receiving a new response message at the content server indicating that the content flow associated with the updated flow parameters will be added for broadcast over the access network; and

logic for delivering the content flow from the content server to the access network in response to receiving the new response message indicating that the content flow associated with the updated flow parameters will be added for broadcast over the access network.

19. The apparatus of claim 18, wherein said logic for adjusting comprises logic for adjusting the selected flow parameters associated with the content flow to produce the updated flow parameters, wherein the updated flow parameters comprise a rate parameter.

20. The apparatus of claim 18, wherein said logic for adjusting comprises logic for adjusting the selected flow parameters associated with the content flow to produce the updated flow parameters, wherein the updated flow parameters comprise a quality of service parameter.

21. An apparatus for transporting a content flow from a content server to an access network for broadcast distribution to user devices coupled to the access network, the apparatus comprising:

means for transmitting a request message from the content server to add the content flow for broadcast over the access network, wherein the request message comprises one or more flow parameters associated with the content flow;

means for receiving a response message at the content server indicating that the content flow will not be added for broadcast over the access network;

means for adjusting selected flow parameters associated with the content flow to produce updated flow parameters in response to receiving the new response message indicating that the content flow associated with the updated flow parameters will not be added for broadcast over the access network;

means for transmitting a new request message from the content server to add the content flow for broadcast over the access network, wherein the new request message comprises the updated flow parameters;

means for receiving a new response message at the content server indicating that the content flow associated with the updated flow parameters will be added for broadcast over the access network; and

means for delivering the content flow from the content server to the access network in response to receiving the new response message indicating that the content flow associated with the updated flow parameters will be added for broadcast over the access network.

22. The apparatus of claim 21, wherein said means for adjusting comprises means for adjusting the selected flow parameters associated with the content flow to produce the updated flow parameters, wherein the updated flow parameters comprise a rate parameter.

23. The apparatus of claim 21, wherein said means for adjusting comprises means for adjusting the selected flow parameters associated with the content flow to produce the updated flow parameters, wherein the updated flow parameters comprise a quality of service parameter.

24. A non-transitory computer-readable medium having stored thereon processor-executable instructions configured to be executed by a processor of a server, the stored processor-executable instructions comprising:

instructions for transmitting a request message from a content server to add a content flow for broadcast over an access network, wherein the request message comprises one or more flow parameters associated with the content flow;

instructions for receiving a response message at the content server indicating that the content flow will not be added for broadcast over the access network;

instructions for adjusting selected flow parameters associated with the content flow to produce updated flow parameters in response to receiving the new response message indicating that the content flow associated with the updated flow parameters will be added for broadcast over the access network;

instructions for transmitting a new request message from the content server to add the content flow for broadcast over the access network, wherein the new request message comprises the updated flow parameters;

instructions for receiving a new response message at the content server indicating that the content flow associated with the updated flow parameters will be added for broadcast over the access network; and

instructions for delivering the content flow from the content server to the access network in response to receiving the new response message indicating that the content flow associated with the updated flow parameters will be added for broadcast over the access network.

25. The non-transitory computer-readable medium of claim 24, wherein said instructions for adjusting comprise instructions for adjusting the selected flow parameters associated with the content flow to produce the updated flow parameters, wherein the updated flow parameters comprise a rate parameter.

26. The non-transitory computer-readable medium of claim 24, wherein said instructions for adjusting comprise instructions for adjusting the selected flow parameters associated with the content flow to produce the updated flow parameters, wherein the updated flow parameters comprise a quality of service parameter.

27. A method for transporting a content flow from a content server to an access network for broadcast distribution to user devices coupled to the access network, the method comprising:

receiving a request message from the content server to add the content flow for broadcast over the access network at a scheduled time, wherein the request message comprises one or more flow parameters associated with the content flow;

determining that the content flow will not be added for broadcast over the access network based on the one or more flow parameters;

transmitting a response message to the content server indicating that the content flow will not be added for broadcast over the access network;

receiving a new request message from the content server to add the content flow for broadcast over the access network, wherein the new request message comprises updated flow parameters;

transmitting a new response message to the content server indicating that the content flow associated with the updated flow parameters will be added for broadcast over the access network and including a flow handle that identifies a flow in the access network; and

receiving the content flow at the access network at the scheduled time indicated in the first request message.

28. The method of claim 27, further comprising:

receiving a subsequent request message from the content server to modify the content flow; and

transmitting a subsequent response message to the content server indicating that the modification to the content flow is accepted.

29. The method of claim 27, further comprising:

receiving a subsequent request message from the content server to delete the content flow; and

transmitting a subsequent response message to the content server indicating that the content flow will be deleted.

30. The method of claim 27, further comprising:

receiving a subsequent request message from the content server to obtain a latency time of the content flow; and

transmitting a subsequent response message to the content server indicating the latency time of the content flow.

31. The method of claim 27, wherein the step of receiving the request message comprises receiving the request message to add the content flow, wherein the content flow comprises a non real-time media clip.

32. The method of claim 27, wherein the step of receiving the content flow comprises receiving the content flow over a bearer channel.

33. The method of claim 27, further comprising broadcasting the content flow over the access network.

34. An apparatus for transporting a content flow from a content server to an access network for broadcast distribution to user devices coupled to the access network, the apparatus comprising:

a processor;

logic configured to receive a first request message from the content server to add the content flow for broadcast over the access network at a scheduled time, wherein the request message comprises one or more flow parameters associated with the content flow;

logic configured to determine that the content flow will not be added for broadcast over the access network based on the one or more flow parameters;

logic configured to transmit a first response message to the content server indicating that the content flow associated with the one or more flow parameters will not be added for broadcast over the access network, the first response message further indicating one or more acceptable flow parameters;

logic configured to receive a second request message from the content server to add the content flow for broadcast over the access network at a scheduled time, wherein the request message comprises one or more of the acceptable flow parameters associated with the content flow;

logic configured to transmit a second response message to the content server indicating that the content flow associated with the one or more acceptable flow parameters will be added for broadcast over the access network and including a flow handle that identifies a flow in the access network upon determining the content flow will be added; and

logic configured to receive the content flow at the access network at the scheduled time.

35. The apparatus of claim 34, wherein said logic configured to receive the request message comprises logic configured to receive a subsequent request message from the content server to modify the content flow, and said logic configured to transmit comprises logic configured to transmit a subsequent response message to the content server indicating that the modification to the content flow will be accepted.

36. The apparatus of claim 34, wherein said logic configured to receive the request messages comprises logic configured to receive a subsequent request message from the content server to delete the content flow, and said logic configured to transmit comprises logic configured to transmit a subsequent response message to the content server indicating that the content flow will be deleted.

37. The apparatus of claim 34, wherein said content flow comprises a non realtime media clip.

38. The apparatus of claim 34, wherein said logic configured to receive the content flow comprise logic configured to receive the content flow over a bearer channel.

39. The apparatus of claim 34, further comprising logic configured to broadcast the content flow over the access network.

40. A non-transitory computer-readable medium having stored thereon processor-executable instructions configured to be executed by a processor of a server, the stored processor-executable instructions comprising:

instructions for receiving a request message from a content server to add a content flow for broadcast over an access network at a scheduled time, wherein the request message comprises one or more flow parameters associated with the content flow;

instructions for determining that the content flow will not be added for broadcast over the access network based on the one or more flow parameters;

instructions for transmitting a first response message to the content server indicating that the content flow associated with the one or more flow parameters will not be added for broadcast over the access network, the first response message further indicating one or more acceptable flow parameters;

instructions for receiving a second request message from the content server to add the content flow for broadcast over the access network at a scheduled time, wherein the request message comprises one or more of the acceptable flow parameters associated with the content flow;

instructions for transmitting a second response message to the content server indicating that the content flow associated with the one or more acceptable flow parameters will be added for broadcast over the access network and including a flow handle that identifies a flow in the access network upon determining the content flow will be added; and

instructions for receiving the content flow at the access network at the scheduled time.