Orbital network layering

• US 10,225,001 B2
• Filed: 06/08/2018
• Issued: 03/05/2019
• Est. Priority Date: 07/19/2017
• Status: Active Grant

• Current Assignee: Lockheed Martin Corporation (Martin Marietta Corporation)
• Original Assignee: Vector Launch, Inc.
• Inventors: Coleman, Shaun, Garber, Darren D.
• Primary Examiner(s): Ferguson, Keith
• Application Number:
  US16/003,308
• Publication Number:
  US 20190028184A1
• Time in Patent Office: 270 Days
• Field of Search: 455 131, 455 111, 455 121, 455 133, 455 16, 455427, 455428, 4554221, 455403, 455445, 455431, 4554261, 4554262, 4555501, 455 301- 306, 725 62- 72, 342352
• CPC Class Codes: H04B 7/185 Space-based or airborne stations; Stations for satellite systemsH04B7/204 takes precedence
• CPC Class Codes: H04B 7/18521 Systems of inter linked satellites, i.e. inter satellite service for optical links between satellites H04B10/118
• CPC Class Codes: H04B 7/195 Non-synchronous stations
• CPC Class Codes: H04L 45/124 using a combination of metrics
• CPC Class Codes: H04L 45/125 based on throughput or bandwidth
• CPC Class Codes: H04L 45/22 Alternate routing
• CPC Class Codes: H04L 45/28 using route fault recovery
• CPC Class Codes: H04L 45/36 Backward learning
• CPC Class Codes: H04W 28/0236 radio quality, e.g. interference, losses or delay
• CPC Class Codes: H04W 40/20 based on geographic position or location
• CPC Class Codes: H04W 40/32 for defining a routing cluster membership

Abstract

Systems, methods, and software described herein provide enhancements for deploying communication networks in clusters of satellite devices. In one example, satellite devices are configured to orbit in an orbital layer defined by an orbital configuration. A communication network is formed among the satellite devices and configured to exchange communications in at least two oppositely circulating directions with respect to an orbital direction of the satellites in the orbital layer.

Claims

1. A satellite cluster, comprising:

first satellite devices orbiting in an orbital layer defined by an orbital configuration;

second satellite devices orbiting in an additional orbital layer having at least one of an orbital inclination and an orbital distance different than that of the orbital layer; and

a communication network formed among selected satellite devices and configured to exchange communications in at least two oppositely circulating directions with respect to at least an orbital direction associated with the orbital layer or the additional orbital layer.

2. The satellite cluster of claim 1, further comprising:

the communication network configured to propagate the communications sequentially though at least the first satellite devices in the at least two oppositely circulating directions.

3. The satellite cluster of claim 1,

wherein the communication network comprises selected ones of the first satellite devices and selected ones of the second satellite devices.

4. The satellite cluster of claim 3, wherein a clustering definition received from control system indicates membership assignments for the selected satellite devices in the communication network, and wherein the clustering definition further indicates a configuration establishing the at least two oppositely circulating directions.

5. The satellite cluster of claim 1, comprising:

a forward communication path formed in at least the orbital layer that propagates traffic of the communication network through the selected satellite devices in a forward direction with respect to the orbital direction; and

a reverse communication path formed in at least the orbital layer that propagates traffic of the communication network through the selected satellite devices in a reverse direction with respect to the orbital direction.

6. The satellite cluster of claim 1, comprising:

during routing of traffic over the communication network, ones of the selected satellite devices configured to determine a traffic direction among the at least two oppositely circulating directions over which to route the traffic based in part on a failure status among the at least two oppositely circulating directions.

7. The satellite cluster of claim 1, comprising:

a source satellite device configured to identify network traffic for delivery to a ground system, and transfer the network traffic for delivery to the ground system over the communication network; and

based at least on an operational status of the communication network indicating a target satellite device can presently communicate with the ground system, the source satellite device configured transfer the network traffic in a selected one of the at least two oppositely circulating directions for delivery of the network traffic to the ground system via the target satellite.

8. A method of operating a satellite cluster, comprising:

establishing first satellite devices orbiting in an orbital layer defined by an orbital configuration;

establishing second satellite devices orbiting in an additional orbital layer having at least one of an orbital inclination and an orbital distance different than that of the orbital layer;

forming a communication network among selected satellite devices and configured to exchange communications in at least two oppositely circulating directions with respect to at least an orbital direction associated with the orbital layer or the additional orbital layer.

9. The method of claim 8, comprising:

propagating the communications sequentially in the at least two oppositely circulating directions though at least the first satellite devices.

10. The method of claim 8,

wherein the communication network comprises selected ones of the satellite devices and selected ones of the second satellite devices.

11. The method of claim 10, wherein a clustering definition received from control system indicates membership assignments for the selected satellite devices in the communication network, and wherein the clustering definition further indicates a configuration establishing the at least two oppositely circulating directions.

12. The method of claim 8, comprising:

forming a forward communication path in at least the orbital layer that propagates traffic of the communication network through the selected satellite devices in a forward direction with respect to the orbital direction; and

forming a reverse communication path in at least the orbital layer that propagates traffic of the communication network through the selected satellite devices in a reverse direction with respect to the orbital direction.

13. The method of claim 8, comprising:

during routing of traffic over the communication network, determining a traffic direction among the at least two oppositely circulating directions over which to route the traffic based in part on a failure status among the at least two oppositely circulating directions.

14. The method of claim 8, comprising:

in a source satellite device, identifying network traffic for delivery to a ground system, and transferring the network traffic for delivery to the ground system over the communication network; and

based at least on an operational status of the communication network indicating a target satellite device can presently communicate with the ground system, in the source satellite device, transferring the network traffic in a selected one of the at least two oppositely circulating directions for delivery of the network traffic to the ground system via the target satellite.

15. A satellite system, comprising:

a first set of satellite devices orbiting with a first orbital inclination;

a second set of satellite devices orbiting with a second orbital inclination different than the first orbital inclination; and

a communication network formed among selected ones of the satellite devices and configured to exchange communications in at least two oppositely circulating directions with respect to at least an orbital direction associated with the selected ones of the satellite devices.

16. The satellite system of claim 15, comprising:

a forward communication path formed among first selected members of the satellite devices configured to route traffic among the satellite devices in a first direction;

a reverse communication path formed among second selected members of the satellite devices configured to route traffic among the satellite devices in a second direction opposite the first direction; and

ones of the first selected members and the second members configured to determine a traffic direction among the forward communication path and the reverse communication path over which to route the traffic based at least in part on a failure status among the forward communication path and the reverse communication path.

17. A satellite system, comprising:

satellite devices orbiting in an orbital layer defined by an orbital configuration;

a communication network formed among selected satellite devices and configured to exchange communications in at least two oppositely circulating directions with respect to at least an orbital direction associated with the orbital layer;

a forward communication path formed in at least the orbital layer that propagates traffic of the communication network through the selected satellite devices in a forward direction with respect to the orbital direction; and

a reverse communication path formed in at least the orbital layer that propagates traffic of the communication network through the selected satellite devices in a reverse direction with respect to the orbital direction.

18. A satellite system, comprising:

satellite devices orbiting in an orbital layer defined by an orbital configuration;

a communication network formed among selected satellite devices and configured to exchange communications in at least two oppositely circulating directions with respect to at least an orbital direction associated with the orbital layer; and

during routing of traffic of the communication network, ones of the selected satellite devices configured to determine a traffic direction among the at least two oppositely circulating directions over which to route the traffic based in part on a failure status among the at least two oppositely circulating directions.

19. A method, comprising:

establishing satellite devices orbiting in an orbital layer defined by an orbital configuration;

forming a communication network among selected satellite devices and configured to exchange communications in at least two oppositely circulating directions with respect to at least an orbital direction associated with the orbital layer;

forming a forward communication path in at least the orbital layer that propagates traffic of the communication network through the selected satellite devices in a forward direction with respect to the orbital direction; and

forming a reverse communication path in at least the orbital layer that propagates traffic of the communication network through the selected satellite devices in a reverse direction with respect to the orbital direction.

20. A method, comprising:

establishing satellite devices orbiting in an orbital layer defined by an orbital configuration;

forming a communication network among selected satellite devices and configured to exchange communications in at least two oppositely circulating directions with respect to at least an orbital direction associated with the orbital layer;

during routing of traffic of the communication network, determining a traffic direction among the at least two oppositely circulating directions over which to route the traffic based in part on a failure status among the at least two oppositely circulating directions.