IP Library Granted Patent US 11,962,397
Granted Patent B2
US 11,962,397 · App. 17/861,055 · Granted Apr 16, 2024

Layer-2 connectivity from switch to access node/gateway

Inventors: Michael Foxworthy (Carlsbad, CA); Girish Chandran (Carlsbad, CA); Jason Lau (Lafayette, LA)
Assignee: Viasat, Inc.
H04B7/18582H04B7/18513H04B7/18571H04L12/4645H04L61/5007H04L67/12H04L69/324H04W88/16
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Quick Facts
Patent No.
US 11,962,397
App. No.
17/861,055
Filed
Jul 8, 2022
Granted
Apr 16, 2024
Kind
B2
Art Unit
2412
USPC
370/319
Abstract

Methods, systems, and apparatuses for providing layer-2 connectivity through a non-routed ground segment network, are described. A system includes a non-autonomous gateway in communication with a satellite configured to relay data packets. The non-autonomous gateway is configured to receive the data packets from the satellite at layer-1 (L1) of the OSI-model, generate a plurality of virtual tagging tuples within the layer-2 packet headers of the plurality of data packets. The non-autonomous gateway is further configured to transmit, at layer-2 (L2) of the OSI-model, the virtually tagged data packets. Each of the packets may include a virtual tagging tuple and an entity destination. The system further includes a L2 switch in communication with the non-autonomous gateway. The L2 switch may be configured to receive the data packets and transmit the data packets to the entity based on the virtual tuples associated with each of the data packets.

Claims (35)

1. A satellite communication system, comprising:

one or more satellites;

one or more gateways; and

one or more core nodes coupled with the one or more gateways and configured to provide a communication service for an aircraft via a first spot beam of a plurality of spot beams, wherein the plurality of spot beams are serviced by the one or more gateways via the one or more satellites, and wherein, to provide the communication service, the one or more core nodes are configured to:

obtain an IP address for a device within the aircraft;

communicate first communications of a communication session with the device via the first spot beam using the IP address,

transition the communication service of the aircraft to a second spot beam of the plurality of spot beams when the aircraft is within an overlap of the first spot beam and the second spot beam, wherein the transitioning comprises changing at least one of a satellite or a gateway that is in communication with the aircraft via the first spot beam, and wherein the second spot beam is serviced by at least one of the one or more gateways having session information for maintaining connectivity of the communication session of the device via the satellite or another satellite of the one or more satellites; and

communicate second communications of the communication session of the device via the second spot beam using the IP address.

2. The satellite communication system of claim 1 , wherein:

the satellite is a first satellite; and

the transitioning comprises changing from the first satellite to a second satellite, the second satellite providing the second spot beam.

3. The satellite communication system of claim 2 , wherein the first satellite is a first type of satellite, and the second satellite is a second type of satellite different than the first type.

4. The satellite communication system of claim 3 , wherein the first satellite and the second satellite have different operational frequency bands.

5. The satellite communication system of claim 4 , wherein the first satellite is a Ka-band satellite, and the second satellite is a Ku-band satellite.

6. The satellite communication system of claim 2 , wherein the second spot beam is serviced by the gateway that services the first spot beam.

7. The satellite communication system of claim 2 , wherein:

the gateway is a first gateway of the one or more gateways; and

to transition the communication service of the aircraft to the second spot beam, the one or more core nodes are further configured to change from the first gateway to a second gateway, the second gateway servicing the second spot beam and having the session information for maintaining connectivity of the communication session of the device.

8. The satellite communication system of claim 7 , wherein the first gateway and the second gateway are each a non-autonomous gateway.

9. The satellite communication system of claim 7 , wherein the second gateway obtains the session information prior to the transitioning of the communication service of the aircraft to the second spot beam.

10. The satellite communication system of claim 9 , wherein the second gateway obtains the session information from the first gateway via the one or more core nodes.

11. The satellite communication system of claim 10 , wherein the one or more core nodes and the first and second gateway are on a same non-routed network.

12. The satellite communication system of claim 1 , wherein:

the gateway is a first gateway of the one or more gateways;

the satellite includes the second spot beam; and

to transition the communication service of the aircraft to the second spot beam, the one or more core nodes are further configured to change from the first spot beam of the satellite to the second spot beam of the satellite, the second spot beam serviced by a second gateway of the one or more gateways having the session information for maintaining connectivity of the communication session of the device.

13. The satellite communication system of claim 1 , wherein the transitioning of the communication service of the aircraft to the second spot beam is based on an indication that the aircraft is within the overlap.

14. The satellite communication system of claim 1 , wherein the one or more core nodes are further configured to:

detect that the aircraft is within the overlap of the first spot beam and the second spot beam, and wherein the transitioning of the communication service of the aircraft to the second spot beam is in response to the detection.

15. The satellite communication system of claim 1 , wherein the session information includes at least the IP address of the device and application information of an application executing on the device.

16. The satellite communication system of claim 1 , wherein the device remains within a same network when the communication service of the aircraft transitions from the first spot beam to the second spot beam.

17. The satellite communication system of claim 1 , wherein the communication session is between the device and an external network.

18. The satellite communication system of claim 1 , wherein the communication session is associated with an application executing on the device.

19. The satellite communication system of claim 1 , wherein the connectivity of the communication session of the device is not lost during the transitioning of the communication service of the aircraft to the second spot beam.

20. The satellite communication system of claim 1 , wherein the device is one of a smartphone, a PDA, a laptop computer, a mobile computer, or a cellular telephone.

Assignments (6)
CORRECTIVE ASSIGNMENT TO CORRECT THE NAME OF ASSIGNEE PREVIOUSLY RECORDED AT REEL: 060538 FRAME: 0502. ASSIGNOR(S) HEREBY CONFIRMS THE ASSIGNMENT. Recorded Nov 7, 2023
From: FOXWORTHY, MICHAEL; CHANDRAN, GIRISH; LAU, JASON
To: VIASAT, INC.
Reel/Frame 065489/0638 →
SUPPLEMENTAL PATENT SECURITY AGREEMENT Recorded Sep 19, 2023
From: VIASAT, INC.
To: MUFG BANK, LTD., AS AGENT
Reel/Frame 064948/0379 →
SUPPLEMENTAL PATENT SECURITY AGREEMENT Recorded Jun 29, 2023
From: VIASAT, INC.
To: BANK OF AMERICA, N.A.
Reel/Frame 064164/0152 →
SUPPLEMENTAL PATENT SECURITY AGREEMENT Recorded Jun 29, 2023
From: VIASAT, INC.
To: WILMINGTON TRUST, NATIONAL ASSOCIATION, AS COLLATERAL TRUSTEE
Reel/Frame 064176/0566 →
SECURITY AGREEMENT Recorded Jun 1, 2023
From: VIASAT, INC.
To: BANK OF AMERICA, N.A., AS AGENT
Reel/Frame 063822/0446 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jul 18, 2022
From: FOXWORTHY, MICHAEL; CHANDRAN, GIRISH; LAU, JASON
To: QUALCOMM INCORPORATED
Reel/Frame 060538/0502 →