System and method for data delivery

• US 20060262806A1
• Filed: 05/19/2005
• Published: 11/23/2006
• Est. Priority Date: 05/19/2005
• Status: Abandoned Application

• Current Assignee: Nokia Corporation
• Original Assignee: Nokia Corporation
• Inventors: Bouazizi, Imed
• Application Number:
  US11/132,554
• Publication Number:
  US 20060262806A1
• Time in Patent Office: Days
• US Class Current: 370/448
• CPC Class Codes: H04L 1/1887 Scheduling and prioritising arrangements
• CPC Class Codes: H04L 12/1868 Measures taken after transmission, e.g. acknowledgments
• CPC Class Codes: H04L 2001/0093 Point-to-multipoint

Abstract

Systems and methods applicable, for instance, in data delivery. For example a service operator server and/or other computer might act to determine which of point-to-point repair mode and point-to-multipoint repair mode should be employed in the case where one or more receivers do not correctly receive dispatched data. As another example, the service operator server and/or other computer might calculate one or more estimates, request one or more values from one or more repair servers, and/or provide to one or more repair servers one or more directives regarding repair mode to be employed.

Claims

1. A method, comprising:

calculating a time, wherein calculation takes into account an end of data set transmission time for a data set, a back-off offset time, and a back-off window;

sending, at the calculated time to one or more repair servers, a request for number of repair requests received;

determining one of point-to-point repair and point-to-multipoint repair to be a most effective repair mode; and

informing one or more repair servers of the determined most effective repair mode.

2. The method of claim 1, further comprising estimating a number of receivers that did not receive a certain portion of data.

3. The method of claim 1, further comprising estimating a point-to-point channel overhead.

4. The method of claim 1, further comprising estimating a point-to-multipoint channel overhead.

5. The method of claim 1, further comprising estimating a point-to-multipoint repair session loss percentage.

6. The method of claim 1, further comprising estimating number of successful data set receptions.

7. The method of claim 1, further comprising estimating a cost to transport a data unit over a point-to-point channel.

8. The method of claim 1, further comprising estimating a cost to transport a data unit over a point-to-multipoint channel.

9. The method of claim 1, further comprising estimating repair mode effectiveness.

10. The method of claim 1, wherein digital video broadcasting for handhelds point-to-multipoint is employed.

11. The method of claim 1, wherein universal mobile telecommunications service point-to-point is employed.

12. A method, comprising:

estimating a number of receivers that did not receive a certain portion of data;

estimating a point-to-point channel overhead;

estimating a point-to-multipoint channel overhead;

estimating a point-to-multipoint repair session loss percentage;

estimating number of successful receptions for point-to-point repair mode;

estimating number of successful receptions for point-to-multipoint repair mode;

estimating cost of point-to-point repair mode selection;

estimating cost of point-to-multipoint repair mode selection;

estimating repair mode effectiveness; and

determining one of point-to-point repair and point-to-multipoint repair to be a most effective repair mode.

13. The method of claim 12, further comprising estimating a cost to transport a data unit over a point-to-point channel.

14. The method of claim 12, further comprising estimating a cost to transport a data unit over a point-to-multipoint channel.

15. The method of claim 12, further comprising calculating a time, wherein calculation takes into account an end of data set transmission time for a data set, a back-off offset time, and a back-off window.

16. The method of claim 12, further comprising sending, at a calculated time to one or more repair servers, a request for number of repair requests received.

17. The method of claim 12, further comprising informing one or more repair servers of the determined most effective repair mode.

18. The method of claim 12, further comprising estimating a fraction of receivers that will send repair requests.

19. The method of claim 12, further comprising initially instructing one or more repair servers to employ point-to-point repair mode.

20. The method of claim 12, wherein digital video broadcasting for handhelds point-to-multipoint is employed.

21. The method of claim 12, wherein universal mobile telecommunications service point-to-point is employed.

22. A system, comprising:

a memory having program code stored therein; and

a processor disposed in communication with the memory for carrying out instructions in accordance with the stored program code;

wherein the program code, when executed by the processor, causes the processor to perform;

calculating a time, wherein calculation takes into account an end of data set transmission time for a data set, a back-off offset time, and a back-off window;

sending, at the calculated time to one or more repair servers, a request for number of repair requests received;

determining one of point-to-point repair and point-to-multipoint repair to be a most effective repair mode; and

informing one or more repair servers of the determined most effective repair mode.

23. The system of claim 22, wherein the processor further performs estimating a number of receivers that did not receive a certain portion of data.

24. The system of claim 22, wherein the processor further performs estimating a point-to-point channel overhead.

25. The system of claim 22, wherein the processor further performs estimating a point-to-multipoint channel overhead.

26. The system of claim 22, wherein the processor further performs estimating a point-to-multipoint repair session loss percentage.

27. The system of claim 22, wherein the processor further performs estimating number of successful data set receptions.

28. The system of claim 22, wherein the processor further performs estimating a cost to transport a data unit over a point-to-point channel.

29. The system of claim 22, wherein the processor further performs estimating a cost to transport a data unit over a point-to-multipoint channel.

30. The system of claim 22, wherein the processor further performs estimating repair mode effectiveness.

31. The system of claim 22, wherein digital video broadcasting for handhelds point-to-multipoint is employed.

32. The system of claim 22, wherein universal mobile telecommunications service point-to-point is employed.

33. A system, comprising:

a memory having program code stored therein; and

a processor disposed in communication with the memory for carrying out instructions in accordance with the stored program code;

wherein the program code, when executed by the processor, causes the processor to perform;

estimating a number of receivers that did not receive a certain portion of data;

estimating a point-to-point channel overhead;

estimating a point-to-multipoint channel overhead;

estimating a point-to-multipoint repair session loss percentage;

estimating number of successful receptions for point-to-point repair mode;

estimating number of successful receptions for point-to-multipoint repair mode;

estimating cost of point-to-point repair mode selection;

estimating cost of point-to-multipoint repair mode selection;

estimating repair mode effectiveness; and

determining one of point-to-point repair and point-to-multipoint repair to be a most effective repair mode.

34. The system of claim 33, wherein the processor further performs estimating a cost to transport a data unit over a point-to-point channel.

35. The system of claim 33, wherein the processor further performs estimating a cost to transport a data unit over a point-to-multipoint channel.

36. The system of claim 33, wherein the processor further performs calculating a time, wherein calculation takes into account an end of data set transmission time for a data set, a back-off offset time, and a back-off window.

37. The system of claim 33, wherein the processor further performs sending, at a calculated time to one or more repair servers, a request for number of repair requests received.

38. The system of claim 33, wherein the processor further performs informing one or more repair servers of the determined most effective repair mode.

39. The system of claim 33, wherein the processor further performs estimating a fraction of receivers that will send repair requests.

40. The system of claim 33, wherein the processor further performs initially instructing one or more repair servers to employ point-to-point repair mode.

41. The system of claim 33, wherein digital video broadcasting for handhelds point-to-multipoint is employed.

42. The system of claim 33, wherein universal mobile telecommunications service point-to-point is employed.

43. A server, comprising:

a memory having program code stored therein;

a processor disposed in communication with the memory for carrying out instructions in accordance with the stored program code; and

a network interface disposed in communication with the processor;

wherein the program code, when executed by the processor, causes the processor to perform;

estimating point-to-point repair mode effectiveness for a point in time within a back-off window;

estimating point-to-multipoint repair mode effectiveness for the point in time within the back-off window; and

determining one of point-to-point repair and point-to-multipoint repair to be a most effective repair mode.