METHODS AND SYSTEMS for MANAGING NETWORK COMMUNICATIONS TO AND FROM A VEHICLE NETWORK

• US 20170012883A1
• Filed: 07/10/2015
• Published: 01/12/2017
• Est. Priority Date: 07/10/2015
• Status: Active Grant

• Current Assignee: Carnegie Mellon University, GM Global Technology Operations LLC (General Motors Company)
• Original Assignee: Carnegie Mellon University, GM Global Technology Operations LLC (General Motors Company)
• Inventors: TONGUZ, OZAN, HU, HSU-CHIEH, BAI, FAN
• Granted Patent: US 10,178,176 B2
• Time in Patent Office: Days
• US Class Current: 1/1
• 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 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

Abstract

Methods and systems for communicating data between a network and devices of a vehicle are provided. A method includes: determining, by a processor, a value associated with a round trip time based on vehicle information; adjusting, by the processor, a size of a window used in communication with the network based on the value; and communicating data at least one of to and from the network based on the size of the window.

Claims

1. A method for communicating data between a network and devices of a vehicle, comprising:

determining, by a processor, a value associated with a round trip time based on vehicle information;

adjusting, by the processor, a size of a window used in communication with the network based on the value; and

communicating data at least one of to and from the network based on the size of the window.

2. The method of claim 1, wherein the vehicle information includes vehicle speed.

3. The method of claim 1, wherein the vehicle information includes wireless channel conditions under which the vehicle is driving.

4. The method of claim 1, wherein the window is a receive window used in a transport-layer protocol.

5. The method of claim 1, wherein the window is a congestion window used in a transmission control protocol.

6. The method of claim 1, wherein the determining the value comprises determining a round trip time ratio based on a round trip time minimum and a current round trip time.

7. The method of claim 6, further comprising determining the round trip time minimum based on the vehicle kinematic information and wireless control condition information.

8. The method of claim 7, further comprising determining a timeframe based on the vehicle information, and determining the round trip time minimum from samples within the timeframe.

9. The method of claim 1, wherein the adjusting the size comprises decreasing the size of the window when the value is less than a determined value.

10. The method of claim 9, wherein the decreasing the size is based on a ratio of a minimum round trip time and a round trip time current.

11. The method of claim 1, wherein the adjusting the size comprises increasing the size of the window when the values is approximately equal to a determined value.

12. The method of claim 11, wherein the increasing the size is based on vehicle information.

13. The method of claim 12, wherein the vehicle information includes vehicle speed.

14. The method of claim 12, wherein the vehicle information includes wireless channel condition information under which the vehicle is driving.

15. The method of claim 1, further comprising determining whether there is a packet loss, and wherein the adjusting the size is based on whether there is a packet loss.

17. The system of claim 15, wherein the vehicle information includes vehicle speed.

18. The system of claim 15, wherein the vehicle information includes wireless channel condition under which the vehicle is driving.

19. The system of claim 15, wherein the second module decreases the size of the window based on the value associated with round trip time and increases the size of the window based on the vehicle information.

20. The system of claim 15, wherein the network is a broadband network.

16. A system for communicating data between a network and devices of a vehicle, comprising:

a first module that determines, by a processor, a value associated with a round trip time based on vehicle information;

a second module that adjusts, by a processor, a size of a window used in communication with the network based on the value; and

a third module that communicates data at least one of to and from the network based on the size of the window.