Hybrid satellite and mesh network system for aircraft and ship internet service

• US 9,397,745 B2
• Filed: 05/17/2011
• Issued: 07/19/2016
• Est. Priority Date: 05/18/2010
• Status: Active Grant

• Current Assignee: Qualcomm, Inc.
• Original Assignee: Qualcomm, Inc.
• Inventors: Jalali, Ahmad, Krishnan, Ranganathan, Tian, Bin
• Primary Examiner(s): HAILE, FEBEN
• Application Number:
  US13/109,302
• Publication Number:
  US 20110286325A1
• Time in Patent Office: 1,890 Days
• Field of Search: 370/216, 370/217, 370/218, 370/221, 370/241, 370/242, 370/244, 370/250, 370/252, 370/328, 370/329
• US Class Current: 1/1
• CPC Class Codes: H04B 7/18504 Aircraft used as relay or high altitude atmospheric platform
• CPC Class Codes: H04B 7/18506 Communications with or from aircraft, i.e. aeronautical mobile service
• CPC Class Codes: H04B 7/18584 Arrangements for data networking, i.e. for data packet routing, for congestion control data switching networks H04L12/00
• CPC Class Codes: H04B 7/18589 Arrangements for controlling an end to end session, i.e. for initialising, synchronising or terminating an end to end link

Abstract

A hybrid satellite-mesh network including a ground segment, a mobile segment and a satellite segment provides high bandwidth communication between mobile platforms and the Internet. The satellite segment is used only when mesh network communication links between mobile segment nodes and ground segment nodes are unavailable. Mobile segment nodes can function in either an access terminal mode or an access point mode to communicate with other mobile segment nodes according to a routing algorithm in a mesh portion of the network. Mobile segment nodes employ adaptive frequency reuse, link level date rate adaptation, link level power control and adaptive beam forming antennas.

Claims

1. A method comprising:

detecting a plurality of moving mobile segment nodes of a hybrid satellite-mesh network by an aircraft node of the hybrid satellite-mesh network, the aircraft node configured with at least two antennas pointing toward at least two different directions and with at least two transceivers, each of the at least two transceivers configured with multiple modem modules, wherein each of the multiple modem modules supports;

an access terminal (AT) mode that searches for an access point (AP) node in the hybrid satellite-mesh network with which to establish multiple AT links, and an access point (AP) mode that solicits other nodes that may be searching for a node in the hybrid satellite-mesh network with which to establish multiple AP links, wherein each of the mobile segment nodes comprises a mobile craft in the air or at sea;

establishing a link with a selected one of the mobile segment nodes by the aircraft node based on network routing optimization criteria and algorithms;

attempting, by the aircraft node of the hybrid satellite-mesh network, to establish a wireless communication path to any ground segment node of the hybrid satellite-mesh network via the selected mobile segment node of the hybrid satellite-mesh network;

determining failure or success of the attempting by the first mobile segment node;

in response to determining failure of the attempting, establishing, by the aircraft node, a link with a satellite segment of the hybrid satellite-mesh network to establish the wireless communication path to a ground segment node of the hybrid satellite-mesh network via the satellite segment of the hybrid satellite-mesh network;

sending and receiving packets to and from the Internet by the aircraft node over the established wireless communication path via the satellite segment; and

while sending and receiving packets via the satellite segment, repeatedly attempting by the aircraft node to establish a new wireless communication path to any ground segment node of the hybrid satellite-mesh network via any of the mobile segment nodes.

2. The method of claim 1, further comprising:

in response to determining success of the attempting, sending and receiving packets to and from the Internet by the aircraft node over the established wireless communication path.

3. The method of claim 1, further comprising:

in response to determining success of any one of the repeated attempts, discontinuing communication by the aircraft node via the satellite segment.

4. The method of claim 3, further comprising:

sending and receiving packets to and from the Internet by the aircraft node over the established new wireless communication path.

5. The method of claim 1, in which the predetermined criteria includes a signal to interference plus noise ratio (SINR) of wireless communication links with the mobile segment nodes.

6. A communication network, comprising:

a ground segment comprising at least one ground segment node in communication with the Internet and with a satellite segment comprising at least one space segment node; and

a mobile segment comprising a plurality of moving mobile segment nodes, including an aircraft node, configured with at least two antennas pointing toward at least two different directions and with at least one transceiver configured with at least one modem module, wherein the at least one modem module supports;

an access terminal (AT) mode that searches for an access point (AP) node in the hybrid satellite-mesh network with which to establish multiple AT links, and an access point (AP) mode that solicits other nodes that may be searching for a node in the hybrid satellite-mesh network with which to establish multiple AP links, wherein each of the mobile segment nodes comprises a mobile craft in the air or at sea, the plurality of mobile segment nodes configured to adaptively communicate with each other and with the at least one ground segment node for access to the Internet, and at least the aircraft node configured to communicate with the at least one space segment node only when wireless communication links with ground segment nodes are out of range directly or via other mobile segment nodes of the plurality of mobile segment nodes;

in which the mobile segment nodes are configured;

to transmit probe signals for discovery by other mobile segment nodes;

to receive response messages from the other mobile segment nodes; and

to establish a wireless communication link with the other mobile segment nodes

in response to receiving the response messages based on network routing optimization criteria and algorithms;

to send and receive packets to and from the Internet by the aircraft node over the established wireless communication path via the satellite segment; and

while sending and receiving packets via the satellite segment, to repeatedly attempt to establish a new wireless communication path to any ground segment node of the hybrid satellite-mesh network via any of the mobile segment nodes.

7. The network of claim 6, in which the mobile segment nodes are configured to adaptively reuse frequencies based on a measured signal to interference plus noise ratio (SINR) of a wireless communication link.

8. The network of claim 6, in which the mobile segment nodes are configured to adaptively change a link level data rate in response to signal to interference plus noise ratio (SINR) measurements on a link corresponding to another of the mobile segment nodes.

9. The network of claim 8, in which the mobile segment nodes are configured to adaptively change a link level power level as a function of the link level data rate.

10. The network of claim 6, in which the two antennas are adaptive beam forming antennas, to direct beams toward other mobile segment nodes of the mobile segment nodes.

11. The network of claim 10, in which the mobile segment nodes are configured to send probe messages on a wide beam, and to receive responses on a directed beam.

12. The communication network of claim 6, in which the predetermined criteria includes a signal to interference plus noise ratio (SINR) of wireless communication links with the mobile segment nodes.

13. An apparatus for wireless communication comprising:

at least one processor; and

a memory coupled to the at least one processor, the at least one processor being configured;

to detect a plurality of moving mobile segment nodes of a hybrid satellite-mesh network by an aircraft node of the hybrid satellite-mesh network, the aircraft node configured with at least two antennas pointing toward at least two different directions and with at least one transceiver configured with at least one modem module, wherein the at least one modem module supports;

an access terminal (AT) mode that searches for an access point (AP) node in the hybrid satellite-mesh network with which to establish multiple AT links, and an access point (AP) mode that solicits other nodes that may be searching for a node in the hybrid satellite-mesh network with which to establish multiple AP links, wherein each of the mobile segment nodes comprises a mobile craft in the air or at sea;

to establish a link with a selected one of the mobile segment nodes by the-aircraft node based on network routing optimization criteria and algorithms;

to perform an attempt, by the aircraft node of the hybrid satellite-mesh network, to establish a wireless communication path to any ground segment node of the hybrid satellite-mesh network via the selected second mobile segment node of the hybrid satellite-mesh network;

to determine failure or success of the attempt by the aircraft node;

to establish, by the aircraft node, a link with a satellite segment of the hybrid satellite-mesh network to establish the wireless communication path to a ground segment node of the hybrid satellite-mesh network via the satellite segment of the hybrid satellite-mesh network in response to determining failure of the attempting;

to send and receive packets to and from the Internet by the aircraft node over the established wireless communication path via the satellite segment; and

while sending and receiving packets via the satellite segment, to repeatedly attempt to establish a new wireless communication path to any ground segment node of the hybrid satellite-mesh network via any of the mobile segment nodes.

14. The apparatus of claim 13 in which the processor is configured:

to send and receive packets to and from the Internet by the aircraft node over the established wireless communication path in response to determining success of the attempting.

15. The apparatus of claim 13 in which the processor is configured:

to send and receive packets to and from the Internet by the aircraft node over the established wireless communication path via the satellite segment; and

to repeatedly attempt, by the aircraft node, to establish a new wireless communication path to any ground segment node of the hybrid satellite-mesh network via any of the second mobile segment nodes while sending and receiving packets via the satellite segment.

16. The apparatus of claim 15 in which the processor is configured:

to discontinue communication by the aircraft node via the satellite segment in response to determining success of any one of the repeated attempts.

17. The apparatus of claim 16 in which the processor is configured:

to send and receive packets to and from the Internet by the aircraft node over the established new communication path.

18. The apparatus of claim 13, in which the predetermined criteria includes a signal to interference plus noise ratio (SINR) of wireless communication links with the mobile segment nodes.

19. A computer program product for wireless communications in a wireless network, comprising:

a non-transitory computer-readable medium having program code recorded thereon, the program code being executed by a processor;

to detect a plurality of moving mobile segment nodes of a hybrid satellite-mesh network by an aircraft node of the hybrid satellite-mesh network, the aircraft node configured with at least two antennas pointing toward at least two different directions and with at least one transceiver configured with at least one modem module, wherein the at least one modem module supports;

an access terminal (AT) mode that searches for an access point (AP) node in the hybrid satellite-mesh network with which to establish multiple AT links, and an access point (AP) mode that solicits other nodes that may be searching for a node in the hybrid satellite-mesh network with which to establish multiple AP links, wherein each of the mobile segment nodes comprises a mobile craft in the air or at sea;

to establish a link with a selected one of the mobile segment nodes by the aircraft node based on network routing optimization criteria and algorithms;

to attempt, by the aircraft node of the hybrid satellite-mesh network, to establish a wireless communication path to any ground segment node of the hybrid satellite-mesh network via the selected mobile segment node of the hybrid satellite-mesh network;

to determine failure or success of the attempt by the aircraft node;

to establish, by the aircraft node, a link with a satellite segment of the hybrid satellite-mesh network to establish the wireless communication path to a ground segment node of the hybrid satellite-mesh network via the satellite segment of the hybrid satellite-mesh network in response to determining failure of the attempt;

to send and receive packets to and from the Internet by the aircraft node over the established wireless communication path via the satellite segment; and

to repeatedly attempt to establish a new wireless communication path to any ground segment node of the hybrid satellite-mesh network via any of the mobile segment nodes while sending and receiving packets via the satellite segment.

20. The computer program product of claim 19, in which the predetermined criteria includes a signal to interference plus noise ratio (SINR) of wireless communication links with the mobile segment nodes.