Directional statistical priority multiple access system and related method

• US 9,712,230 B1
• Filed: 09/17/2014
• Issued: 07/18/2017
• Est. Priority Date: 09/17/2014
• Status: Active Grant

• Current Assignee: Rockwell Collins, Inc. (Raytheon Technologies Corporation d/b/a RTX)
• Original Assignee: Rockwell Collins, Inc. (Raytheon Technologies Corporation d/b/a RTX)
• Inventors: Stevens, James A.
• Primary Examiner(s): Phan, Dao
• Application Number:
  US14/488,420
• Time in Patent Office: 1,035 Days
• Field of Search: 342 58, 342367, 342370, 455 15, 4554521
• CPC Class Codes: H04B 7/26 at least one of which is mobile
• CPC Class Codes: H04B 7/2643 using time-division multiple access [TDMA] H04B7/2615, H04B7/2618 take precedence

Abstract

The present invention is directed to a system and related method for providing high bandwidth communication between nodes in an RF neighborhood. Each node may transmit via an omnidirectional antenna element while time differentially receiving via a directional antenna element. As each node receives signals from neighborhood nodes, it determines a neighborhood contingent as well as a desirability of the received signals and the direction from which the desirable signals originate. Based on this direction, each node focuses a directional antenna element on the node from which a signal is desired while eliminating interference from transmissions from undesired nodes. Based on the neighborhood contingent, the system adjusts the node'"'"'s omnidirectional transmit rates to communicate via statistical priority multiple access protocols with the desirable neighborhood nodes. The system adjusts the node'"'"'s statistical priority multiple access channel access to account for the eliminated interference.

Claims

1. A communications system for radio frequency data transfer, comprising:

an omnidirectional antenna element associated with a first node, the omnidirectional antenna element including an omnidirectional radio frequency transmitter;

a directional antenna element associated with the first node, the directional antenna element having a field of view;

a controller operably coupled with each of the directional antenna element and the omnidirectional antenna element for operational control of each of the omnidirectional antenna element and the directional antenna element;

a memory operably coupled with the controller;

an input output device operably coupled with the controller, the input output device including a data generation device and data reception device;

the memory storing non-transitory computer readable program code for a statistical priority multiple access channel access protocol, the computer readable program code comprising instructions for causing the controller to;

receive a first signal via the directional antenna element;

store content information from the first signal to the memory;

determine a neighborhood contingent based at least on the content information;

determine, from at least one of;

the content information and a receiving vector of the first signal, an azimuth and elevation to an origin of the first signal;

determine, from the content information, if the origin of the first signal is at least one desired neighborhood node;

direct the directional antenna element to the azimuth and elevation if the origin of the first signal is the at least one desired neighborhood node so as to limit a first node receipt of radio frequency energy originating outside the field of view of the directional antenna element, the directing including narrowing the field of view of the directional antenna element;

transmit a second signal via the omnidirectional antenna element, the second signal based on a data generation;

operably connect the first node with the at least one desired neighborhood node via the first signal and the second signal to enable radio frequency data transfer via the statistical priority multiple access channel access protocol between the first node and the at least one desired neighborhood node so as to enable a neighborhood throughput based on the number of nodes in the field of view of the directional antenna element.

2. The system of claim 1, wherein the directional antenna element further comprises at least one of:

a passive electronically scanned array antenna, an active electronically scanned array antenna, a meta material antenna, an electromechanical steered antenna, a parasitic directional antenna, and a mechanically steered antenna.

3. The system of claim 1, wherein the memory further stores instructions for causing the controller to adjust a transmit rate of one of the first signal and the second signal based on the neighborhood contingent.

4. The system of claim 1, wherein the content information is one of:

a position of the second node and a bearing to the second node and the controller determines an azimuth and elevation to the origin of the first signal one of;

absolutely to at least one reference system, relatively to a forward bearing of a node platform forward end, and relatively to a reference within the directional antenna element.

5. The system of claim 1, wherein the memory further stores instructions for causing the controller to adjust transmission throughput via the second signal based on the neighborhood contingent.

6. The system of claim 1, wherein the omnidirectional antenna element and the directional antenna element are within a multiple element antenna, the multiple element antenna further configured for directional reception of the first signal and directional transmission of the second signal.

7. The system of claim 1, wherein the input output device operably coupled with the controller is at least one of:

a Tactical Targeting Network Transceiver, a Multi-functional Information Distribution System Joint Tactical Radio System, and a radio configured to communicate via a Tactical Targeting Network Transceiver waveform.

8. The system of claim 1, wherein the first signal and the second signal are conformal to one of:

a Tactical Targeting Network Technology waveform, a waveform operating statistical priority multiple access channel access protocol, and a Link 16 waveform.

9. The system of claim 1, wherein narrowing the field of view of the directional antenna element further comprises narrowing the field of view to focus on a single desired neighborhood node, the narrowing including at least one of:

a directional transmitter focusing on a single receiver and a directional receiver focusing on a single transmitter.

10. The system of claim 1, wherein the first node and the at least one desired neighborhood node are associated with one of:

a ship, an aircraft, a submarine, a surface vehicle, a deployable facility, a fixed site facility, and a handheld transceiver.

11. A method for radio frequency data transfer, comprising:

associating a directional antenna element and an omnidirectional antenna element within a first node, each of the directional antenna element and the omnidirectional antenna element operably coupled with a controller, the omnidirectional antenna element being an omnidirectional radio frequency transmitter, the controller having non-transitory computer readable program code embodied therein for a statistical priority multiple access channel access protocol, the computer readable program code comprising instructions which, when executed by the controller, cause the controller to;

receive a data input via an input output device operably coupled with the controller, the input output device including a data generation device and a data reception device;

receive a first signal via the directional antenna element, the directional antenna element having a field of view;

store content information from the first signal within a memory operably coupled with the controller;

determine a neighborhood contingent based at least on the content information;

determine, from at least one of;

the content information and a receiving vector of the first signal, an azimuth and elevation to an origin of the first signal;

determine, from the content information, if the origin of the first signal is at least one desired neighborhood node;

direct the directional antenna element to the azimuth and elevation if the origin of the first signal is the at least one desired neighborhood node so as to limit a first node receipt of radio frequency energy originating outside the field of view of the directional antenna element, the directing including narrowing the field of view of the directional antenna element;

transmit a second signal via the omnidirectional antenna element, the second signal based on the data generation;

operably connect the first node with the at least one desired neighborhood node via the first signal and the second signal to enable radio frequency data transfer via the statistical priority multiple access channel access protocol between the first node and the at least one desired neighborhood node so as to enable a neighborhood throughput based on the number of nodes in the field of view of the directional antenna element.

12. The method of claim 11, wherein associating a directional antenna element and an omnidirectional antenna element within the first node further comprises associating at least one of:

a passive electronically scanned array antenna, an active electronically scanned array antenna, a meta material antenna, an electromechanical steered antenna, a parasitic directional antenna, and a mechanically steered antenna.

13. The method of claim 11, wherein the memory further stores instructions for causing the controller to adjust a transmit rate of at least one of the first signal and the second signal based on the neighborhood contingent.

14. The method of claim 11, wherein determining the azimuth and elevation to an origin of the first signal is based on at least one of:

a position of the at least one desired neighborhood node and a bearing to the at least one desired neighborhood node, and the determining the azimuth and elevation to the origin of the first signal is one of;

absolutely to at least one earth reference system, relatively to a forward bearing of a node platform forward end, and relatively to a reference within the directional antenna element.

15. The method of claim 11, wherein the memory further stores instructions for causing the controller to adjust transmission throughput via the second signal based on the neighborhood contingent.

16. The method of claim 11, wherein operably connecting the first node with the at least one desired neighborhood node via the first signal and the second signal further comprises operably connecting the first node via the omnidirectional antenna element and the directional antenna element within a multiple element antenna, the multiple element antenna further configured for one of:

directional reception of the first signal, directional transmission of the first signal, direction reception of the second signal, and directional transmission of the second signal.

17. The method of claim 11, wherein receiving a data input via the input output device operably coupled with the controller further includes receiving data from at least one of:

a Tactical Targeting Network Transceiver, a Multi-functional Information Distribution System Joint Tactical Radio System, and a radio configured to communicate via a Tactical Targeting Network Transceiver waveform.

18. The method of claim 11, wherein receiving the first signal and transmitting the second signal are conformal to one of:

a Tactical Targeting Network Technology waveform, a waveform operating statistical priority multiple access channel access protocol, and a Link 16 waveform.

19. The method of claim 11, wherein narrowing the field of view of the directional antenna element further comprises narrowing the field of view to focus on a single desired neighborhood node, the narrowing including at least one of:

a directional transmitter focusing on a single receiver and a directional receiver focusing on a single transmitter.

20. The method of claim 11, wherein the first node and the at least one desired neighborhood node are associated with one of:

a ship, an aircraft, a submarine, a surface vehicle, a deployable facility, a fixed site facility, and a handheld transceiver.