Determining a mode to transmit data

• US 20080089398A1
• Filed: 10/12/2006
• Published: 04/17/2008
• Est. Priority Date: 10/12/2006
• Status: Active Grant

• Current Assignee: Raytheon Company (Rtx Corporation)
• Original Assignee: POWERWAVE COGNITION, INC.
• Inventors: Ly, Alan V., Cormier, Daniel R., Do, Peter
• Granted Patent: US 8,019,018 B2
• Time in Patent Office: Days
• US Class Current: 375/221
• CPC Class Codes: H04L 1/0003 by switching between different modulation schemes
• CPC Class Codes: H04L 1/002 Algorithms with memory of the previous states, e.g. Markovian models
• CPC Class Codes: H04L 1/0025 Transmission of mode-switching indication
• CPC Class Codes: H04L 1/20 using signal quality detector

Abstract

In one aspect, the invention is a method that includes transferring data at an initial mode from a transmitter to a receiver, determining a suggested mode based on the data transferred and determining a count of the data transferred from the transmitter to the receiver. The method also includes transferring the suggested mode and the count to the transmitter and determining a pending mode based on the suggested mode and the count.

Claims

1. A method, comprising:

transferring data at an initial mode from a transmitter to a receiver;

determining a suggested mode based on the data transferred;

determining a count of the data transferred from the transmitter to the receiver;

transferring the suggested mode and the count to the transmitter; and

determining a pending mode based on the suggested mode and the count.

2. The method of claim 1 wherein determining the suggested mode comprises determining a suggested data rate.

3. The method of claim 1 wherein determining the suggested mode comprises determining a waveform.

4. The method of claim 1 wherein determining the pending mode comprises determining a pending data rate.

5. The method of claim 1 wherein determining the pending mode comprises determining a waveform.

6. The method of claim 1 wherein determining the pending mode comprises determining a message completion rate.

7. The method of claim 6 wherein determining the pending mode comprises comparing the initial mode to the suggested mode.

8. The method of claim 1 wherein determining the suggested mode comprises determining if a signal, including the data, has a signal-to-noise ratio indicating saturation.

9. The method of claim 8 wherein determining the suggested mode comprises determining a current suggested mode.

10. The method of claim 9, further comprising determining a current suggested mode for each N number of hysteresis epochs,

wherein determining the suggested mode comprises determining a suggested mode to be equal to a minimum current suggested mode over the past N number of hysteresis epochs.

11. A communications system to determine a mode to transmit data, comprising:

a receiver comprising circuitry configured to;

determine a suggested mode based on data received;

determine a count of the data transferred to the receiver;

send the suggested mode and the count to a transmitter; and

the transmitter comprising circuitry configured to;

send the data at an initial mode; and

determine a pending mode based on the suggested mode and the count.

12. The system of claim 11 wherein the circuitry of the transmitter and the circuitry of the receiver comprise at least one of a processor, a memory, programmable logic and logic gates.

13. The system of claim 11 wherein the circuitry of the receiver configured to determine the suggested mode comprises circuitry configured to determine a suggested data rate.

14. The system of claim 11 wherein the circuitry of the receiver configured to determine the suggested mode comprises circuitry configured to determine a waveform.

15. The system of claim 11 wherein the circuitry of the transmitter configured to determine the pending mode comprises circuitry configured to determine a pending data rate.

16. The system of claim 11 wherein the circuitry of the transmitter configured to determine the pending mode comprises circuitry configured to determine a waveform.

17. The system of claim 11 wherein the circuitry of the transmitter configured to determine the pending mode comprises circuitry configured to determine a message completion rate.

18. The system of claim 17 wherein the circuitry of the transmitter configured to determine the pending mode comprises circuitry configured to compare the initial mode to the suggested mode.

19. The system of claim 11 wherein the circuitry of the receiver configured to determine the suggested mode comprises circuitry configured to determine if a signal, including the data, has a signal-to-noise ratio indicating saturation.

20. The system of claim 19 wherein the circuitry of the receiver configured to determine the suggested mode comprises circuitry configured to determine a current suggested mode.

21. The system of claim 20 wherein the receiver comprises circuitry configured to determine a current suggested mode for each N number of hysteresis epochs,

wherein the circuitry configured to determine the suggested mode comprises circuitry to determine a suggested mode to be equal to a minimum current suggested mode over the past N number of hysteresis epochs.

22. A transmitter, comprising:

circuitry configured to;

send the data at an initial mode to a receiver;

determine a pending mode based on the suggested mode and the count received from the receiver.

23. The transmitter of claim 22 wherein the circuitry comprises at least one of a processor, a memory, programmable logic and logic gates.

24. The transmitter of claim 22 wherein the circuitry configured to determine the pending mode comprises circuitry configured to determine a pending data rate.

25. The transmitter of claim 22 wherein the circuitry configured to determine the pending mode comprises circuitry configured to determine a waveform.

26. The transmitter of claim 25 wherein the circuitry configured to determine the pending mode comprises circuitry configured to determine a message completion rate.

27. The transmitter of claim 26 wherein the circuitry configured to determine the pending mode comprises circuitry configured to compare the initial mode to the suggested mode.

28. A receiver, comprising:

circuitry configured to;

determine a suggested mode based on data received from a transmitter;

determine a count of the data received from the transmitter; and

send the suggested mode and the count to the transmitter.

29. The receiver of claim 28 wherein the circuitry comprises at least one of a processor, a memory programmable logic and logic gates.

30. The receiver of claim 28 wherein the circuitry configured to determine the suggested mode comprises circuitry configured to determine a suggested data rate.

31. The receiver of claim 30 wherein the circuitry configured to determine the suggested mode comprises circuitry configured to determine a waveform.

32. The receiver of claim 28 wherein the circuitry configured to determine the suggested mode comprises circuitry configured to determine if a signal, including the data, has a signal-to-noise ratio indicating saturation.

33. The receiver of claim 32 wherein the circuitry of the receiver configured to determine the suggested mode comprises circuitry configured to determine a current suggested mode.

34. The receiver of claim 33, further comprising circuitry configured to determine a current suggested mode for each N number of hysteresis epochs,

wherein the circuitry configured to determine the suggested mode comprises circuitry to determine a suggested mode to be equal to a minimum current suggested mode over the past N number of hysteresis epochs.

35. An article comprising a machine-readable medium that stores executable instructions to determine a mode to transmit data, the instructions causing a machine to:

transfer data at an initial mode from a transmitter to a receiver;

determine a suggested mode based on the data transferred;

determine a count of the data transferred from the transmitter to the receiver;

transfer the suggested mode and the count to the transmitter; and

determine a pending mode based on the suggested mode and the count.

36. The article of claim 35 wherein the instructions causing the machine to determine the pending mode comprises instructions causing the machine to determine a message completion rate and to compare the initial mode to the suggested mode.

37. The article of claim 35 wherein the instructions causing the machine to determine the suggested mode comprises instructions causing the machine to:

determine if a signal, including the data, has a signal-to-noise ratio indicating saturation; and

determine a current suggested mode.

38. The article of claim 37, further comprising instructions causing a machine to determine a current suggested mode for each N number of hysteresis epochs,

wherein the instructions causing the machine to determine the suggested mode comprises instructions causing a machine to determine a suggested mode to be equal to a minimum current suggested mode over the past N number of hysteresis epochs.