METHOD AND APPARATUS FOR SETTING AND MANAGING OPERATIONAL DYNAMICS WITHIN COGNITIVE RADIO NETWORKS

• US 20080155249A1
• Filed: 12/21/2006
• Published: 06/26/2008
• Est. Priority Date: 12/21/2006
• Status: Active Grant

• Current Assignee: Motorola Solutions, Inc.
• Original Assignee: Motorola, Inc. (Motorola Solutions, Inc.)
• Inventors: Backof, Charles A., Ecklund, Lawrence M., Gillig, Steven F., Preece, Scott E., Lee, Whay Chiou, Bruner, John D., Bromley, Steven D., Grosspietsch, John K.
• Granted Patent: US 7,970,430 B2
• Time in Patent Office: Days
• US Class Current: 713/100
• CPC Class Codes: H04B 1/0003 Software-defined radio [SDR] systems, i.e. systems wherein components typically implemented in hardware, e.g. filters or modulators/demodulators, are implented using software, e.g. by involving an AD or DA conversion stage such that at least part of the signal processing is performed in the digital domain digital baseband systems H04L25/00; digital modulation/demodulation H04L27/00; CDMA H04B1/707; TDMA H04B7/2643; image transmission H04N5/00

Abstract

In certain embodiments, a method for managing operational parameters of a cognitive radio device to minimize non-compliance with a regulatory policy involves sensing a change in an operational condition that will affect compliance with a current operational policy; estimating a time at which the current operational policy will become invalid; selecting a method for determining how to update the current operational policy; and updating the current operational policy of the cognitive radio device. Other embodiments may incorporate more, fewer or other elements.

Claims

1. A method for managing operational parameters of a cognitive radio device to minimize non-compliance with a regulatory policy, comprising:

sensing a change in an operational condition that will affect compliance with a current operational policy;

estimating a time at which the current operational policy will become invalid;

selecting a method for determining how to update the current operational policy; and

updating the current operational policy of the cognitive radio device.

2. The method according to claim 1, wherein the selected method for determining how to update the current operational policy comprises determining a policy from a history of operational policy compliance.

3. The method according to claim 1, wherein the selected method for determining how to update the current operational policy comprises determining a policy based upon a time available to implement an updated policy.

4. The method according to claim 1, wherein the selected method for determining how to update the current operational policy comprises determining a policy by evaluation of a penalty for non-compliance with a regulatory policy.

5. The method according to claim 1, wherein the selected method for determining how to update the current operational policy comprises determining a policy by determining a time for implementing a full policy.

6. The method according to claim 1, wherein the selected method for determining how to update the current operational policy is based upon a time to make a decision on a policy selection method, a time to make a policy decision, and a time to program the cognitive radio with the new policy.

7. The method according to claim 1, wherein the selected method for determining how to update the current operational policy comprises determining a policy by retrieving a cached policy.

8. The method according to claim 1, wherein the selected method for determining how to update the current operational policy comprises determining a policy from a policy decision tree.

9. The method according to claim 8, wherein the policy decision tree comprises a simplified policy decision tree.

10. The method according to claim 1, wherein the selected method for determining how to update the current operational policy comprises determining a policy by selection of a simplified policy.

11. The method according to claim 1, wherein the selected method for determining how to update the current operational policy comprises determining a policy by selection of a default policy.

12. The method according to claim 1, wherein the estimating is based upon at least one of a complexity of the current policy, a capability of the cognitive radio, a penalty for non-compliance with a regulatory policy, geographic location, altitude, time of day, trajectory, velocity of the cognitive radio device, and changing conditions of movement and location.

13. The method according to claim 1, wherein the selected method comprises obtaining a policy decision from an authority with greater computing power than the cognitive radio.

14. A cognitive radio device, comprising:

a software configurable transceiver;

a control processor that is configured under software control to manage operational parameters of the cognitive radio device to minimize non-compliance with a regulatory policy, by;

sensing a change in an operational condition that will affect compliance with a current operational policy;

estimating a time at which the current operational policy will become invalid;

selecting a method for determining how to update the current operational policy; and

updating the current operational policy of the cognitive radio device.

15. The cognitive radio device according to claim 14, wherein the selected method for determining how to update the current operational policy comprises determining a policy from a history of operational policy compliance.

16. The cognitive radio device according to claim 14, wherein the selected method for determining how to update the current operational policy comprises determining a policy based upon a time available to implement an updated policy.

17. The cognitive radio device according to claim 14, wherein the selected method for determining how to update the current operational policy comprises determining a policy by evaluation of a penalty for non-compliance with a regulatory policy.

18. The cognitive radio device according to claim 14, wherein the selected method for determining how to update the current operational policy comprises determining a policy by determining a time needed for implementing a full policy.

19. The cognitive radio device according to claim 14, wherein the selected method for determining how to update the current operational policy comprises determining a policy by retrieving a cached policy.

20. The cognitive radio device according to claim 14, wherein the selected method for determining how to update the current operational policy comprises determining a policy from a policy decision tree.

21. The cognitive radio device according to claim 20, wherein the policy decision tree comprises a simplified policy decision tree.

22. The cognitive radio device according to claim 14, wherein the selected method for determining how to update the current operational policy comprises determining a policy by selection of a simplified policy.

23. The cognitive radio device according to claim 14, wherein the selected method for determining how to update the current operational policy comprises determining a policy by selection of a default policy.

24. The method according to claim 14, wherein the estimating is based upon at least one of a complexity of the current policy, a capability of the cognitive radio, a penalty for non-compliance with a regulatory policy, geographic location, altitude, time of day, trajectory, velocity of the cognitive radio device, and changing conditions of movement and location.

25. The method according to claim 14, wherein the selected method comprises obtaining a policy decision from an authority with greater computing power than the cognitive radio.

26. A cognitive radio device, comprising:

a software configurable transceiver;

a control processor that is configured under software control to manage operational parameters of the cognitive radio device to minimize non-compliance with a regulatory policy, by;

sensing a change in an operational condition that will affect compliance with a current operational policy;

estimating a time at which the current operational policy will become invalid, wherein the estimating is based upon at least one of geographic location, altitude, time of day, trajectory, velocity of the cognitive radio device, and changing conditions of movement and location, complexity of the current policy, capability of the cognitive radio, and penalty for non-compliance with a regulatory policy;

selecting a method for determining how to update the current operational policy;

updating the current operational policy of the cognitive radio device; and

wherein the selected method for determining how to update the current operational policy is selected from;

determining a policy from a history of operational policy compliance, determining a policy from a time available to implement an updated policy, determining a policy by evaluation of a penalty for non-compliance with a regulatory policy, determining a policy by implementing a full policy, determining a policy by retrieving a cached policy, determining a policy from a policy decision tree, determining a policy from a simplified policy decision tree, determining a policy by selection of a simplified policy, and determining a policy by selection of a default policy.