Dynamic spectrum utilization techniques and methods

• US 7,738,890 B1
• Filed: 05/09/2007
• Issued: 06/15/2010
• Est. Priority Date: 05/09/2007
• Status: Active Grant

• Current Assignee: Northrop Grumman Systems Corporation (Northrop Grumman Corporation)
• Original Assignee: Northrop Grumman Systems Corporation (Northrop Grumman Corporation)
• Inventors: Shull, Eric A.
• Primary Examiner(s): LEE, JOHN J
• Application Number:
  US11/746,400
• Time in Patent Office: 1,133 Days
• Field of Search: 455/561, 455/456.1, 455/67.11, 455/450, 455/452.1, 455/509, 455/63.1, 455/67.13, 455/62, 455/69, 455/226.2, 370/329, 370/330, 370/343, 370/280
• US Class Current: 455/509
• CPC Class Codes: H04B 17/345 Interference values signal-to-interference ratio [SIR] or carrier-to-interference ratio [CIR] H04B17/336
• CPC Class Codes: H04B 17/382 for resource allocation, admission control or handover
• CPC Class Codes: H04W 16/14 Spectrum sharing arrangements between different networks
• CPC Class Codes: H04W 16/18 Network planning tools

Abstract

A remote communications node unit (86) determines radio frequency (RF) dynamic spectrum utilization for use in a RF communications network (154) and includes a measuring module (46) for measuring radio frequency (RF) interference at a location of the communications node unit (86). A processing module (62) receives RF measurement data from the measuring module (46) for determining RF interference in a local environment of the remote communications node (86) based upon selected factors of the type including mission priority parameters, channel availability statistics, link dynamic information, and the waveform dependent susceptibility data. The processing module (62) controls communications frequency and characteristics used by the remote communications module (86) for exchange of information with other remote communications nodes (86).

Claims

1. A remote communications node unit determining radio frequency (RF) dynamic spectrum utilization for use in a RF communications network comprising:

a measuring module for measuring radio frequency (RF) interference at a location of the remote communications node unit;

a processing module receiving RF measurement data from the measuring module for determining RF interference in a local environment of the remote communications node based upon selected factors of type including mission priority parameters, channel availability statistics, link dynamic information, and waveform dependent susceptibility data;

the processing module controlling communications frequency and characteristics used by the remote communications module for exchange of information with other remote communications nodes.

2. The invention of claim 1 further including a network entity processor for transmitting system and local information to one or more remote communications nodes.

3. The invention of claim 1 wherein the measuring module further includes at least one receiving subsystem for measuring conductive interference at a location of the remote node.

4. The invention of claim 1 wherein the measuring module further includes at least one receiving subsystem for measuring radiated interference at a location of the remote node.

5. The invention of claim 1 wherein the remote communications node includes a wireless network transceiver for communicating RF signals with other members of a network.

6. The invention of claim 1 wherein the processing module determines ranges of RF frequencies to be used for communications and determines a type of interference within a local environment for the ranges of RF frequencies to calculate an optimal RF frequency range to be used for communications within the RF communications network.

7. A radio frequency (RF) communications network of type including a plurality of discrete remote node units that inter-communicate in a geographically dispersed network comprising:

a plurality of remote communications node unit determining radio frequency (RF) dynamic spectrum utilization for use in the RF communications network comprising;

a measuring module for measuring radio frequency (RF) interference at a location of a communications node unit;

a processing module receiving RF measurement data from the measuring module for determining RF interference in a local environment of the remote communications node based upon selected factors of the type including mission priority parameters, channel availability statistics, link, dynamic information, and waveform dependent susceptibility data;

the processing module controlling communications frequency and characteristics used by the remote communications module for exchange of information with other remote communications nodes.

8. The invention of claim 7 further including a network entity processor for transmitting system and local information to one or more remote communications nodes.

9. The invention of claim 7 wherein the measuring module further includes at least one receiving subsystem for measuring conductive interference at a location of the remote node.

10. The invention of claim 7 wherein the measuring module further includes at least one receiving subsystem for measuring radiated interference at a location of the remote node.

11. The invention of claim 7 wherein the remote communications node includes a wireless network transceiver for communicating RF signals with other members of a network.

12. The invention of claim 7 wherein the processing module determines ranges of RF frequencies to be used for communications and determines a type of interference within a local environment for the ranges of RF frequencies to calculate an optimal RF frequency range to be used for communications within the RF communications network.

13. A method for radio frequency (RF) communication between a plurality of discrete remote node units in an RF communications network including the steps of

configuring mission hardware and dynamic spectrum utilization (DSU) parameters;

performing an initial interference scan using a measuring module;

building information for successive interference databases with collected interference data;

communicating the collected interference data with other remote nodes;

conveying the data to a processing module for determining whether a RF channel being used by the discrete remote node requires re-configuration; and

,

re-configuring an operational RF channel if network communications can be improved.

14. The method of claim 13 further including a network entity processor for transmitting, system and local information to one or more remote communications nodes.

15. The method of claim 13 wherein the measuring module further includes at least one receiving subsystem for measuring conductive interference at a location of the remote node.

16. The method of claim 13 wherein the measuring module further includes at least one receiving subsystem for measuring radiated interference at a location of the remote node.

17. The method of claim 13 wherein the remote communications node includes a wireless network transceiver for communicating RF signals with other members of a network.

18. The method of claim 13 wherein the processing module determines ranges of RF frequencies to be used for communications and determines a type of interference within a local environment for the ranges of RF frequencies to calculate an optimal RF frequency range to be used for communications within the RF communications network.

19. The method of claim 13 wherein the processing module determines ranges of RF frequencies to be used for communications and determines a type of interference within a local environment for the ranges of RF frequencies to determine a best modulation waveform for that previously quantified type of interference.

20. The method of claim 13 wherein the processing module determines ranges of RF frequencies to be used for communications and determines a type of interference within a local environment for the ranges of RF frequencies to determine best communications channel coding techniques for that previously quantified type of interference.

21. The method of claim 13 wherein the processing module determines ranges of RF frequencies to be used for communications and determines a type of interference within a local environment for the ranges of RF frequencies to determine best interleaving and redundancy for that previously quantified type of interference.