Protocol data unit recovery

• US 9,887,813 B2
• Filed: 05/21/2008
• Issued: 02/06/2018
• Est. Priority Date: 06/13/2007
• Status: Active Grant

• Current Assignee: Qualcomm, Inc.
• Original Assignee: Qualcomm, Inc.
• Inventors: Maheshwari, Shailesh, Klingenbrunn, Thomas, Liou, Tim T., Gannamaraju, Suresh Sharma, Gulati, Vikas, Kanamarlapudi, Sitaramanjaneyulu
• Primary Examiner(s): LIU, JUNG
• Application Number:
  US12/124,541
• Publication Number:
  US 20080310313A1
• Time in Patent Office: 3,548 Days
• Field of Search: 370241, 370242, 370220, 370231, 370244, 370229, 370310, 370331, 370473
• CPC Class Codes: H04L 1/1867 Arrangements specially adapted for the transmitter end
• CPC Class Codes: H04L 69/40 for recovering from a failure of a protocol instance or entity, e.g. service redundancy protocols, protocol state redundancy or protocol service redirection management of faults, events, alarms or notifications in data switching networks H04L41/06
• CPC Class Codes: H04W 24/00 Supervisory, monitoring or testing arrangements

Abstract

Information can transfer from a transmitter to a receiver; however, the transmission can consume valuable resources. Therefore, a number of times a transmission is attempted can be tracked and compared against a threshold value. If the transmission occurs too many times—based upon the comparison—then a reset can occur. Tracking can occur for a protocol data unit and/or a control protocol data unit to determine if a reset should occur.

Claims

1. A method for tracking success of a protocol data unit transmission, comprising:

transmitting a first protocol data unit from a transmitter;

incrementing a first counter by one after transmission of the first protocol data unit;

determining if an acknowledgement of the transmission of the first protocol data unit has been received by the transmitter;

resetting the first counter to zero if the acknowledgement of the transmission of the first protocol data unit has been received by the transmitter;

determining a value of the first counter, and;

if the first counter has a value of zero, transmitting a second protocol data unit from the transmitter and incrementing the first counter by one after transmission of the second protocol data unit, the second protocol data unit different from the first protocol data unit;

if the first counter has a value of one, retransmitting the first protocol data unit from the transmitter and incrementing the first counter by one after retransmission of the first protocol data unit;

if the first counter has a value of two, transmitting a first control protocol data unit from the transmitter and incrementing a second counter by one after transmission of the first control protocol data unit, wherein the first control protocol data unit has less bytes than the first protocol data unit;

determining if an acknowledgement of the transmission of the first control protocol data unit has been received by the transmitter;

resetting the second counter to zero if the acknowledgement of the transmission of the first control protocol data unit has been received by the transmitter;

determining a value of the second counter, and;

if the second counter has a value of zero, retransmitting the first protocol data unit from the transmitter and incrementing the first counter by one after retransmission of the first protocol data unit;

if the second counter has a value of one, retransmitting the first control protocol data unit from the transmitter and incrementing the second counter by one after retransmission of the first control protocol data unit;

if the second counter has a value of two, triggering a radio link protocol reset and resetting the first counter and the second counter to zero.

2. The method of claim 1, wherein determining the value of the first counter comprises comparing the first counter, after incrementing, against a threshold.

3. The method of claim 2, wherein triggering the radio link protocol reset is based upon a result of comparing the threshold against the second counter.

4. The method of claim 3, wherein the result that facilitates triggering is when the threshold and the second counter are equal or when the second counter surpasses the threshold.

5. The method of claim 3, wherein the second counter is a control protocol data unit specific counter.

6. The method of claim 3, further comprising establishing the threshold.

7. The method of claim 3, further comprising resetting the first counter to a base value upon triggering the reset.

8. A wireless communication apparatus, comprising:

a transmitter configured to transmit a first protocol data unit, a second protocol data unit, and a first control protocol data unit;

a balancer configured determine a value of a first counter and a second counter;

an aggregator configured to incrementing a first counter by one after transmission of the first protocol data unit and;

if the first counter has a value of zero, request the transmitter transmit a second protocol data unit from the transmitter and increment the first counter by one after transmission of the second protocol data unit, the second protocol data unit different from the first protocol data unit;

if the first counter has a value of one, request the transmitter retransmit the first protocol data unit from the transmitter and increment the first counter by one after retransmission of the first protocol data unit;

if the first counter has a value of two, request the transmitter transmit a first control protocol data unit from the transmitter and increment a second counter by one after transmission of the first control protocol data unit, wherein the first control protocol data unit has less bytes than the first protocol data unit; and

if the second counter has a value of zero, request the transmitter retransmit the first protocol data unit from the transmitter and increment the first counter by one after retransmission of the first protocol data unit;

if the second counter has a value of one, request the transmitter retransmit the first control protocol data unit from the transmitter and increment the second counter by one after retransmission of the first control protocol data unit;

if the second counter has a value of two, triggering a radio link protocol reset and request a setter reset the first counter and the second counter to zero;

an evaluator configured to determine if an acknowledgement of the transmission of either the first protocol data unit or the first control protocol data unit or both has been received by the transmitter; and

the setter configured to reset the first counter in response to the acknowledgement that the transmission is of the first protocol data unit was successful and configured to reset the second counter in response to the notice acknowledgement that the transmission is of the first control protocol data unit was successful.

9. The apparatus of claim 8, wherein the balancer that compares the first counter against a threshold after the first counter is incremented.

10. The apparatus of claim 9, wherein the setter that triggers the radio link protocol reset is based upon a result of the comparison of the threshold against the second counter.

11. The apparatus of claim 10, wherein the result that facilitates implementation of the setter is when the threshold and the second counter are equal or when the second counter surpasses the threshold.

12. The apparatus of claim 10, wherein the second counter is a control protocol data unit specific counter.

13. The apparatus of claim 10, further comprising a calculator that establishes the threshold.

14. The apparatus of claim 10, further comprising a controller that resets the first counter to a base value upon the trigger of the reset.

15. The apparatus of claim 8, wherein the apparatus is a part of at least one of a mobile device and a base station.

16. A wireless communications apparatus, comprising:

means for transmitting a first protocol data unit, a second protocol data unit, and a first control protocol data unit;

means for determining a value of a first counter and a second counter;

means for incrementing a first counter by one after transmission of the first protocol data unit and;

if the first counter has a value of zero, request the means for transmitting transmit a second protocol data unit from the transmitter and increment the first counter by one after transmission of the second protocol data unit, the second protocol data unit different from the first protocol data unit;

if the first counter has a value of one, request the means for transmitting retransmit the first protocol data unit from the transmitter and increment the first counter by one after retransmission of the first protocol data unit;

if the first counter has a value of two, request the means for transmitting transmit a first control protocol data unit from the transmitter and increment a second counter by one after transmission of the first control protocol data unit, wherein the first control protocol data unit has less bytes than the first protocol data unit; and

if the second counter has a value of zero, request the means for transmitting retransmit the first protocol data unit from the transmitter and increment the first counter by one after retransmission of the first protocol data unit;

if the second counter has a value of one, request the means for transmitting retransmit the first control protocol data unit from the transmitter and increment the second counter by one after retransmission of the first control protocol data unit;

if the second counter has a value of two, triggering a radio link protocol reset and request a means for resetting the first counter and the second counter to zero;

means for determining if an acknowledgement of the transmission of either the first protocol data unit or the first control protocol data unit or both has been received by the transmitter; and

the means for resetting configured to reset the first counter in response to the acknowledgement that the transmission of the first protocol data unit was successful and configured to reset the second counter in response to the notice acknowledgement that the transmission is of the first control protocol data unit was successful.

17. The apparatus of claim 16, further comprising means for comparing the first counter against a threshold after the first counter is incremented.

18. The apparatus of claim 17, further comprising means for triggering the radio link protocol reset based upon a result of comparing the threshold against the second counter.

19. The apparatus of claim 18, wherein the result that facilitates operation regarding means for triggering is when the threshold and the second counter are equal or when the second counter surpasses the threshold.

20. The apparatus of claim 18, wherein the second counter is a control protocol data unit specific counter.

21. The apparatus of claim 18, further comprising means for establishing the threshold.

22. The apparatus of claim 18, further comprising means for resetting the counter to a base value upon triggering the reset.

23. The apparatus of claim 16, wherein the apparatus is a part of at least one of a mobile device and a base station.

24. A machine-readable medium, having stored thereon machine-executable instructions for:

transmitting a first protocol data unit from a transmitter;

incrementing a first counter by one after transmission of the first protocol data unit;

determining if an acknowledgement of the transmission of the first protocol data unit has been received by the transmitter;

resetting the first counter to zero if the acknowledgement of the transmission of the first protocol data unit has been received by the transmitter;

determining a value of the first counter, and;

if the first counter has a value of zero, transmitting a second protocol data unit from the transmitter and incrementing the first counter by one after transmission of the second protocol data unit, the second protocol data unit different from the first protocol data unit;

if the first counter has a value of one, retransmitting the first protocol data unit from the transmitter and incrementing the first counter by one after retransmission of the first protocol data unit;

if the first counter has a value of two, transmitting a first control protocol data unit from the transmitter and incrementing a second counter by one after transmission of the first control protocol data unit, wherein the first control protocol data unit has less bytes than the first protocol data unit;

determining if an acknowledgement of the transmission of the first control protocol data unit has been received by the transmitter;

resetting the second counter to zero if the acknowledgement of the transmission of the first control protocol data unit has been received by the transmitter;

determining a value of the second counter, and;

if the second counter has a value of zero, retransmitting the first protocol data unit from the transmitter and incrementing the first counter by one after retransmission of the first protocol data unit;

if the second counter has a value of one, retransmitting the first control protocol data unit from the transmitter and incrementing the second counter by one after retransmission of the first control protocol data unit;

if the second counter has a value of two, triggering a radio link protocol reset and resetting the first counter and the second counter to zero.

25. The machine-readable medium of claim 24, further comprising instructions for comparing the first counter against a threshold after the first counter is incremented.

26. The machine-readable medium of claim 25, further comprising instructions for triggering the radio link protocol reset is based upon a result of comparing the threshold against the second counter.

27. The machine-readable medium of claim 26, wherein the result that facilitates triggering is when the threshold and the second counter are equal or when the second counter surpasses the threshold.

28. The machine-readable medium of claim 26, wherein the second counter is a control protocol data unit specific counter.

29. The machine-readable medium of claim 26, further comprising instructions for establishing the threshold.

30. The machine-readable medium of claim 26, further comprising instructions for resetting the first counter to a base value upon triggering the reset.

31. The machine-readable medium of claim 24, wherein the machine-readable medium is a part of at least one of a mobile device and a base station.

32. An apparatus, comprising:

a processor configured to;

transmitting a first protocol data unit from a transmitter;

incrementing a first counter by one after transmission of the first protocol data unit;

determining if an acknowledgement of the transmission of the first protocol data unit has been received by the transmitter;

resetting the first counter to zero if the acknowledgement of the transmission of the first protocol data unit has been received by the transmitter;

determining a value of the first counter, and;

if the first counter has a value of zero, transmitting a second protocol data unit from the transmitter and incrementing the first counter by one after transmission of the second protocol data unit, the second protocol data unit different from the first protocol data unit;

if the first counter has a value of one, retransmitting the first protocol data unit from the transmitter and incrementing the first counter by one after retransmission of the first protocol data unit;

if the first counter has a value of two, transmitting a first control protocol data unit from the transmitter and incrementing a second counter by one after transmission of the first control protocol data unit, wherein the first control protocol data unit has less bytes than the first protocol data unit;

determining if an acknowledgement of the transmission of the first control protocol data unit has been received by the transmitter;

resetting the second counter to zero if the acknowledgement of the transmission of the first control protocol data unit has been received by the transmitter;

determining a value of the second counter, and;

if the second counter has a value of zero, retransmitting the first protocol data unit from the transmitter and incrementing the first counter by one after retransmission of the first protocol data unit;

if the second counter has a value of one, retransmitting the first control protocol data unit from the transmitter and incrementing the second counter by one after retransmission of the first control protocol data unit;

if the second counter has a value of two, triggering a radio link protocol reset and resetting the first counter and the second counter to zero.

33. The apparatus of claim 32, wherein the processor is further configured to compare the first counter against a threshold after the first counter is incremented.

34. The apparatus of claim 33, wherein the processor is further configured to trigger the radio link protocol reset is based upon a result of comparing the threshold against the second counter.

35. The apparatus of claim 34, wherein the result that facilitates triggering is when the threshold and the second counter are equal or when the second counter surpasses the threshold.

36. The apparatus of claim 34, wherein the second counter is a control protocol data unit specific counter.

37. The apparatus of claim 34, wherein the processor is further configured to establish the threshold.

38. The apparatus of claim 34, wherein the processor is further configured to reset the first counter to a base value upon triggering the reset.

39. The apparatus of claim 32, wherein the processor is a part of at least one of a mobile device and a base station.