Orientation of directional antennas using horizontal position information

• US 10,149,115 B1
• Filed: 01/26/2017
• Issued: 12/04/2018
• Est. Priority Date: 05/13/2015
• Status: Active Grant

• Current Assignee: Amazon Technologies, Inc. (Amazon.com, Inc.)
• Original Assignee: Amazon Technologies, Inc. (Amazon.com, Inc.)
• Inventors: Buchmueller, Daniel, Degges, Jr., Ronald Joseph, Kim, Jin Dong, Kimchi, Gur, Lee, Sang Eun, Narasimhan, Subram, Um, Koohyun
• Primary Examiner(s): Yu, Lihong
• Application Number:
  US15/416,713
• Time in Patent Office: 677 Days
• Field of Search: 375220
• CPC Class Codes: H01Q 1/1257 using the received signal strength
• CPC Class Codes: H01Q 1/28 Adaptation for use in or on aircraft, missiles, satellites, or balloons
• CPC Class Codes: H01Q 3/08 for varying two co-ordinates of the orientation
• CPC Class Codes: H04B 1/3822 specially adapted for use in vehicles H04B1/3827 takes precedence
• CPC Class Codes: H04W 4/40 for vehicles, e.g. vehicle-to-pedestrians [V2P]
• CPC Class Codes: H04W 4/44 for communication between vehicles and infrastructures, e.g. vehicle-to-cloud [V2C] or vehicle-to-home [V2H]
• CPC Class Codes: H04W 76/10 Connection setup

Abstract

Systems, methods, and apparatus are provided for enabling orientation of directional antennas even when one or more of the directional antennas are moving. Position information for each directional antenna is transmitted using an omnidirectional antenna transmitting at a low bandwidth and a low power. The position information of the directional antennas is used to orient the directional antennas so that a high bandwidth, low power wireless connection can be enabled and/or maintained between the directional antennas. The position information is periodically transmitted and the orientation of the directional antennas is updated as one or more of the directional antennas move so that the wireless connection between the directional antennas is maintained.

Claims

1. An unmanned aerial vehicle (“

UAV”

), comprising;

a first directional antenna;

a first omnidirectional antenna configured to receive a wireless communication that includes second position information indicating a second horizontal position, a second orientation, and a second approximate altitude of a second directional antenna coupled to a second UAV;

an antenna orientation controller configured to orient the first directional antenna;

a processor; and

a memory coupled to the processor and storing program instructions that when executed by the processor cause the processor to at least;

determine first position information of the first directional antenna coupled to the UAV, the first position information including a first horizontal position of the first directional antenna, a first orientation of the first directional antenna, and a first approximate altitude of the first directional antenna;

determine a desired directional antenna orientation of the first directional antenna so that the first directional antenna is oriented toward the second directional antenna and able to establish or maintain a wireless connection with the second directional antenna, wherein the desired directional antenna orientation is determined based at least in part on the first position information and the second position information; and

send an instruction to the antenna orientation controller to orient the first directional antenna according to the desired directional antenna orientation so that the first directional antenna coupled to the UAV is oriented toward the second directional antenna coupled to the second UAV and able to establish or maintain the wireless connection with the second directional antenna.

2. The UAV of claim 1, wherein the program instructions when executed by the processor further cause the processor to at least:

transmit, using the first omnidirectional antenna, the first position information.

3. The UAV of claim 2, wherein the desired directional antenna orientation is further determined based on an anticipated trajectory of the UAV.

4. The UAV of claim 1, wherein the wireless connection is a high bandwidth wireless connection.

5. A computer implemented method, comprising:

under control of one or more computing systems configured with executable instructions,

determining first position information including a first horizontal position and a first approximate altitude of a first directional antenna coupled to a first vehicle;

transmitting, using a first omnidirectional antenna coupled to the first vehicle, the first position information so that the first position information is received at a second location that is remote from a first location of the first vehicle;

receiving, using the first omnidirectional antenna, second position information including a second horizontal position and a second approximate altitude corresponding to a second directional antenna coupled to a second vehicle that is positioned at the second location;

determining, based at least in part on the first position information and the second position information, a desired directional antenna orientation of the first directional antenna so that the first directional antenna is oriented toward and able to wirelessly connect with the second directional antenna;

sending instruction to orient the first directional antenna according to the desired directional antenna orientation so that the first directional antenna coupled to the first vehicle is oriented toward the second directional antenna coupled to the second vehicle and able to wirelessly connect with the second directional antenna; and

establishing a wireless connection between the first directional antenna and the second directional antenna.

6. The method of claim 5, wherein the first vehicle is moving with respect to the second location.

7. The method of claim 6, wherein the second directional antenna coupled to the second vehicle is moving with respect to the first vehicle.

8. The method of claim 5, wherein the first vehicle is an aerial vehicle.

9. The method of claim 5, further comprising:

determining, after the first vehicle has moved, third position information including a third horizontal position of the first directional antenna coupled to the first vehicle; and

transmitting, using the first directional antenna coupled to the first vehicle, the third position information so that the third position information is received at the second location.

10. The method of claim 9, further comprising:

receiving, using the first directional antenna, fourth position information including a fourth horizontal position corresponding to the second directional antenna;

determining a second desired directional antenna orientation of the first directional antenna so that the first directional antenna is oriented toward and able to maintain the wireless connection with the second directional antenna; and

sending instructions to orient the first directional antenna according to the second desired directional antenna orientation so that the first directional antenna is oriented toward the second directional antenna and able to maintain the wireless connection with the second directional antenna.

11. The method of claim 5, wherein the first position information includes at least one of an approximate angle of the first directional antenna, or an approximate orientation of the first directional antenna.

12. The method of claim 5, further comprising:

receiving, using the first omnidirectional antenna, third position information including a third horizontal position corresponding to the second directional antenna;

determining, based at least in part on the third position information, a second desired directional antenna orientation of the first directional antenna so that the first directional antenna is oriented toward and able to maintain the wireless connection with the second directional antenna;

sending instruction to orient the first directional antenna according to the second desired directional antenna orientation so that the first directional antenna remains oriented toward the second directional antenna and able to maintain the wireless connection with the second directional antenna; and

maintaining the wireless connection between the first directional antenna and the second directional antenna.

13. The method of claim 5, further comprising:

determining an anticipated trajectory of the first vehicle; and

wherein determining the desired directional antenna orientation of the first directional antenna is based on at least one of the first position information, a first orientation of the first directional antenna, the second position information, a second orientation of the second directional antenna, or the anticipated trajectory.

14. The method of claim 5, further comprising:

determining a latency time for orienting the first directional antenna; and

wherein determining the desired directional antenna orientation of the first directional antenna is further based on the latency time.

15. A vehicle, comprising:

a first directional antenna;

a first omnidirectional antenna;

a processor; and

a memory coupled to the processor and storing program instructions that when executed by the processor cause the processor to at least;

determine first position information including a first horizontal position and a first approximate altitude of the first directional antenna;

cause transmission, using the first omnidirectional antenna, of the first position information so that the first position information is received at a second location that is remote from a first location of the vehicle;

determine, based at least in part on the first position information and second position information including a second horizontal position and a second approximate altitude corresponding to a second directional antenna coupled to a second vehicle that is positioned at the second location, a desired directional antenna orientation of the first directional antenna so that the first directional antenna is oriented toward and able to connect with the second directional antenna;

cause orientation of the first directional antenna according to the desired directional antenna orientation so that the first directional antenna coupled to the vehicle is oriented toward and able to connect with the second directional antenna coupled to the second vehicle; and

establish a connection between the first directional antenna and the second directional antenna.

16. The vehicle of claim 15, wherein the program instructions when executed by the processor further cause the processor to at least:

receive, using the first omnidirectional antenna, the second position information including the second horizontal position and the second approximate altitude corresponding to the second directional antenna coupled to the second vehicle at the second location.

17. The vehicle of claim 15, wherein the program instructions when executed by the processor further cause the processor to at least:

determine an anticipated trajectory of the vehicle; and

wherein the desired directional antenna orientation of the first directional antenna is determined based on at least one of the first position information, a first orientation of the first directional antenna, the second position information, a second orientation of the second directional antenna, or the anticipated trajectory.

18. The vehicle of claim 15, wherein the program instructions when executed by the processor further cause the processor to at least:

determine a latency time for orienting the first directional antenna; and

wherein the desired directional antenna orientation of the first directional antenna is further determined based on the latency time.

19. The vehicle of claim 15, wherein the first directional antenna comprises an electronically steerable antenna.

20. The vehicle of claim 15, wherein the vehicle is at least one of an unmanned aerial vehicle, an aerial vehicle, an unmanned ground based vehicle, a ground based vehicle, an unmanned water based vehicle, or a water based vehicle.