Hybrid air-to-ground and satellite system traffic management

• US 9,848,433 B2
• Filed: 10/27/2014
• Issued: 12/19/2017
• Est. Priority Date: 10/27/2014
• Status: Active Grant

• Current Assignee: AT&T Intellectual Property I LP (AT&T, Inc.)
• Original Assignee: AT&T Intellectual Property I LP (AT&T, Inc.), AT&T Mobility II LLC (AT&T, Inc.)
• Inventors: Frerking, Melvin D., Wei, Bo, Radpour, Assad
• Primary Examiner(s): Nawaz, Asad
• Assistant Examiner(s): Waqas, Saad A
• Application Number:
  US14/524,202
• Publication Number:
  US 20160119938A1
• Time in Patent Office: 1,149 Days
• Field of Search: 370316
• CPC Class Codes: H04B 7/15507 Relay station based processing for cell extension or control of coverage area, network planning with network coordinated processing with regard to cell extension H04W16/26; network topologies using dedicated repeater stations H04W84/047; terminal devices adapted for relaying to or from an other terminal H04W88/04
• CPC Class Codes: H04B 7/18506 Communications with or from aircraft, i.e. aeronautical mobile service
• CPC Class Codes: H04B 7/18508 with satellite system used as relay, i.e. aeronautical mobile satellite service
• CPC Class Codes: H04B 7/1851 Systems using a satellite or space-based relay H04B7/18508, H04B7/18521 take precedence; providing specific services H04B7/18523 - H04B7/18576
• CPC Class Codes: H04W 36/14 Reselecting a network or an air interface
• CPC Class Codes: H04W 36/32 by location or mobility data, e.g. speed data
• CPC Class Codes: H04W 72/0453 Resources in frequency domain, e.g. a carrier in FDMA
• CPC Class Codes: H04W 72/56 based on priority criteria
• CPC Class Codes: H04W 80/06 Transport layer protocols, e.g. TCP [Transport Control Protocol] over wireless transmission control protocol/Internet protocol [TCP/IP] or user datagram protocol [UDP] H04L69/16
• CPC Class Codes: H04W 84/005 Moving wireless networks
• CPC Class Codes: H04W 84/06 Airborne or Satellite Networks space-based or airborne stations H04B7/185

Abstract

A technique for providing users with in-flight connectivity includes a method for operating a communications system on an aircraft comprising allocating to a communications session between equipment on the aircraft and other equipment, a first bandwidth allocation of a selected communications system selected from the group consisting of a satellite communications system and an air-to-ground communications system. The allocating is based on a latency tolerance of the communications session and a prioritization level of the communications session. The method includes communicating signals of the communications session using the first bandwidth allocation of the selected communications system.

Claims

1. A method for operating a communications system on an aircraft comprising:

allocating, by a controller on the aircraft, to a communications session between equipment on the aircraft and other equipment, a first bandwidth allocation of a selected communications system selected from the group consisting of a non-terrestrial communications system and an air-to-ground communications system, the allocating being based on a latency tolerance of the communications session and a prioritization level of the communications session and the allocating being further based on a non-terrestrial communications system bandwidth allocated to the aircraft and an air-to-ground communications system bandwidth allocated to the aircraft, the equipment on the aircraft being one of aircraft passenger user equipment, avionics equipment, an in-flight entertainment system, and aircraft personnel communications equipment, a prioritization level of the avionics equipment being greater than a prioritization level of aircraft personnel communications equipment, and the prioritization level of the aircraft personnel communications equipment being greater than a prioritization level of the aircraft passenger user equipment,

in response to selecting the air-to-ground communications system, communicating signals of the communications session in A, B, C or D frequency bands using a first Wireless Communications Service (WCS)-band radio unit coupled to a first modem and a first antenna or communicating signals in C or D frequency bands using a second WCS-band radio unit coupled to a second modem and a second antenna;

adjusting the first bandwidth allocation, by the controller, in response to an event associated with a second communications session between equipment on the aircraft and other equipment, the second communications session having a prioritization level higher than the prioritization level of the communications session; and

communicating signals of the communications session using the first bandwidth allocation of the selected communications system.

2. The method, as recited in claim 1, wherein the air-to-ground communications system is selected until the air-to-ground communications system bandwidth is approximately a threshold air-to-ground bandwidth allocation for the aircraft.

3. The method, as recited in claim 1, further comprising:

allocating, by the controller, an aircraft-area bandwidth to the communications session based on at least one of capability of the equipment on the aircraft and subscription information associated with the equipment on the aircraft; and

communicating the signals of the communications session further using the aircraft-area bandwidth.

4. The method, as recited in claim 1, wherein the prioritization level of the communications session is selected from a plurality of prioritization levels based on a type of the equipment on the aircraft, the plurality of prioritization levels including the prioritization level of the aircraft passenger user equipment, the prioritization level of the avionics equipment, the prioritization level of the in-flight entertainment system, and the prioritization level of aircraft personnel communications equipment.

5. The method, as recited in claim 1, wherein the selected communications system is the non-terrestrial communications system in response to the communications session being tolerant of a high latency and the selected communications system is the air-to-ground communications system in response to the communications session being intolerant of the high latency.

6. The method, as recited in claim 1, wherein the communications session is a transport layer session of an open systems interconnection model communications system.

7. The method, as recited in claim 6, wherein the communications session is a transmission control protocol session.

8. The method, as recited in claim 1, further comprising:

allocating, by the controller, aircraft-area bandwidth to the communications session according to the prioritization level of the equipment on the aircraft, the prioritization level being selected from a plurality of prioritization levels based on a type of the equipment on the aircraft, the plurality of prioritization levels including the prioritization level of the aircraft passenger user equipment, the prioritization level of the avionics equipment, the prioritization level of the in-flight entertainment system, and the prioritization level of the aircraft personnel communications equipment; and

communicating signals of the communications session using the aircraft-area bandwidth allocation.

9. The method, as recited in claim 1, wherein the selected communications system is the non-terrestrial communications system and the method further comprises:

handing off the communications session from the non-terrestrial communications system to the air-to-ground communications system; and

communicating the signals of the communications session using a second bandwidth allocation of the air-to-ground communications system, the second bandwidth being allocated by the controller based on the latency tolerance of the communications session and the prioritization level of the communications session, the second bandwidth being allocated further based on the non-terrestrial communications system bandwidth allocated to the aircraft and the air-to-ground communications system bandwidth allocated to the aircraft.

10. The method, as recited in claim 9, further comprising:

handing off the communications session from the air-to-ground communications system to the non-terrestrial communications system; and

communicating the signals of the communications session using a third bandwidth allocation of the non-terrestrial communications system, the third bandwidth being allocated by the controller based on the latency tolerance of the communications session and the prioritization level of the communications session, the third bandwidth being allocated further based on the non-terrestrial communications system bandwidth allocated to the aircraft and the air-to-ground communications system bandwidth allocated to the aircraft.

11. The method, as recited in claim 10, further comprising:

handing off the communications session from the non-terrestrial communications system to a terrestrial communications system; and

communicating the signals of the communications session using a fourth bandwidth allocation of the terrestrial communications system, the fourth bandwidth being allocated by the controller, based on the prioritization level of the communications session, the fourth bandwidth being allocated further based on the non-terrestrial communications system bandwidth allocated to the aircraft and the air-to-ground communications system bandwidth allocated to the aircraft.

12. The method, as recited in claim 9, wherein the handing off is in response to a change in aircraft orientation.

13. The method, as recited in claim 1, further comprising:

associating with an aircraft subscriber-identity module, information associated with equipment on the aircraft; and

registering the aircraft with the non-terrestrial communications system and the air-to-ground communications system.

14. The method, as recited in claim 13, further comprising:

allocating, by the non-terrestrial communications system, the non-terrestrial communications system bandwidth to the aircraft according to at least one of an actual number of passengers on the aircraft and an aircraft type; and

allocating, by the air-to-ground communications system, the air-to-ground communications system bandwidth to the aircraft according to at least one of a number of passengers and an aircraft type.

15. The method, as recited in claim 14, wherein the aircraft type is one of commercial and private.

16. The method, as recited in claim 13, further comprising:

allocating, by the non-terrestrial communications system, the non-terrestrial communications system bandwidth to the aircraft according to aircraft altitude; and

allocating, by the air-to-ground communications system, the air-to-ground communications system bandwidth to the aircraft according to aircraft altitude.

17. The method, as recited in claim 1, wherein the first bandwidth is allocated further according to cost tolerance and minimum required capacity of the communications session.

18. The method, as recited in claim 17, further comprising:

queueing signals of the communications session in response to available bandwidth of the selected communications system being insufficient to satisfy a minimum required capacity of the communications session.

19. An apparatus for communications on an aircraft comprising:

a first modem configured to process signals on the aircraft, the signals being communicated with a non-terrestrial relay point;

a second modem configured to process signals on the aircraft, the signals being communicated with a terrestrial relay point;

a Wireless Communications Service (WCS)-band radio unit coupled to the second modem and a first antenna configured to transmit signals from the aircraft using A, B, C or D frequency bands;

a second WCS-band radio unit coupled to the second modem and a second antenna configured to transmit signals from the aircraft using C or D frequency bands; and

a controller on the aircraft, the controller being configured to allocate to a communications session between equipment on the aircraft and other equipment, and configured to adjust the first bandwidth allocation in response to an event associated with a second communications session between equipment on the aircraft and other equipment, the second communications session having a prioritization level higher than the prioritization level of the communications session, a first bandwidth allocation of a selected communications system selected from the group consisting of a satellite communications system and an air-to-ground communications system, the first bandwidth being allocated based on a latency tolerance of the communications session and a prioritization level of the communications session and the first bandwidth being allocated further based on a non-terrestrial communications system bandwidth allocated to the aircraft and an air-to-ground communications system bandwidth allocated to the aircraft, the controller communicating signals of the communications session with the selected communications system using one of the first modem and the second modem according to the first bandwidth allocation, the equipment on the aircraft being one of aircraft passenger user equipment, avionics equipment, an in-flight entertainment system, and aircraft personnel communications equipment, a prioritization level of the avionics equipment being greater than a prioritization level of aircraft personnel communications equipment, and the prioritization level of the aircraft personnel communications equipment being greater than a prioritization level of the aircraft passenger user equipment.

20. The apparatus, as recited in claim 19, further comprising:

a wireless local area access node configured to communicate with user equipment on the aircraft and the controller using a local area network wireless protocol; and

a small cell access node on the aircraft configured to communicate with user equipment on the aircraft and the controller using a wide area network wireless protocol,

wherein the controller is further configured to allocate an aircraft-area bandwidth to the communications session based on at least one of capability of the equipment on the aircraft and subscription information associated with the equipment on the aircraft and the controller being configured to communicate the signals of the communications session further using the aircraft-area bandwidth.

21. The apparatus, as recited in claim 19, wherein the prioritization level of the communications session is selected from a plurality of prioritization levels based on a type of the equipment on the aircraft, the plurality of prioritization levels including the prioritization level of aircraft passenger user equipment, the prioritization level of the avionics equipment, the prioritization level of the in-flight entertainment system, and the prioritization level of aircraft personnel communications equipment.

22. The apparatus, as recited in claim 19, further comprising:

a third modem configured to process signals on the aircraft communicated with a second non-terrestrial relay point;

a satellite radio unit coupled to the first modem and a third antenna configured to transmit signals from the aircraft using a Ka/Ku frequency band; and

a 14 GHz radio unit coupled to the third modem and a fourth antenna configured to transmit signals from the aircraft using a 14 GHz frequency band.

23. The apparatus, as recited in claim 22, further comprising:

an S-band radio unit coupled to the second modem and a fifth antenna configured to transmit signals from the aircraft using an S frequency band; and

a mobility band radio unit coupled to the second modem and a sixth antenna configured to transmit signals from the aircraft using a mobility frequency band.

24. The apparatus, as recited in claim 19, further comprising:

the satellite communications system comprising the non-terrestrial relay point; and

the air-to-ground communications system comprising the terrestrial relay point that directly communicates with user equipment,

wherein the terrestrial relay point comprises an up-tilted antenna coupled to an eNodeB.

25. The apparatus, as recited in claim 19, further comprising:

an in-flight entertainment system;

a third modem configured to process signals received from a terrestrial local area network to the in-flight entertainment system; and

a short range radio unit coupled to the third modem and a third antenna configured to transmit signals from the aircraft using a local area network protocol.

26. A method for operating a communications system on an aircraft comprising:

allocating, by a controller on the aircraft, to a communications session between equipment on the aircraft and other equipment, a first bandwidth allocation of a selected communications system selected from the group consisting of a non-terrestrial communications system and an air-to-ground communications system, the allocating being based on a latency tolerance of the communications session and a prioritization level of the communications session and the allocating being further based on a non-terrestrial communications system bandwidth allocated to the aircraft and an air-to-ground communications system bandwidth allocated to the aircraft, the equipment on the aircraft being one of aircraft passenger user equipment, avionics equipment, an in-flight entertainment system, and aircraft personnel communications equipment, a prioritization level of the avionics equipment being greater than a prioritization level of aircraft personnel communications equipment, and the prioritization level of the aircraft personnel communications equipment being greater than a prioritization level of the aircraft passenger user equipment,

in response to selecting the non-terrestrial communications system, communicating signals of the communications session with a first non-terrestrial relay point using a satellite radio unit coupled to a first modem and a first antenna configured to transmit signals from the aircraft using a Ka/Ku frequency band or communicating signals of the communication session with a second non-terrestrial relay point using a 14 GHz radio unit coupled to a second modem and a second antenna configured to transmit signals from the aircraft using a 14 GHz frequency band;

adjusting the first bandwidth allocation, by the controller, in response to an event associated with a second communications session between equipment on the aircraft and other equipment, the second communications session having a prioritization level higher than the prioritization level of the communications session; and

communicating signals of the communications session using the first bandwidth allocation of the selected communications system.