US 11,950,091 B2
Communication system and method
Joseph Gorman, Cedar Rapids, IA (US); Scott Sollars, Marion, IA (US); Timothy Allen Schultz, Marion, IA (US); and Christopher Claussen, Cedar Rapids, IA (US)
Assigned to Transportation IP Holdings, LLC, Norwalk, CT (US)
Filed by Transportation IP Holdings, LLC, Norwalk, CT (US)
Filed on Apr. 14, 2021, as Appl. No. 17/230,738.
Claims priority of provisional application 63/010,189, filed on Apr. 15, 2020.
Prior Publication US 2021/0329448 A1, Oct. 21, 2021
Int. Cl. H04L 29/06 (2006.01); H04L 9/06 (2006.01); H04W 12/033 (2021.01); H04W 12/0431 (2021.01); H04W 12/0433 (2021.01); H04L 9/14 (2006.01)
CPC H04W 12/033 (2021.01) [H04L 9/0643 (2013.01); H04W 12/0431 (2021.01); H04W 12/0433 (2021.01); H04L 9/14 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A system comprising:
an onboard communication system configured to be disposed onboard a vehicle system and comprising one or more processors, the one or more processors configured to:
generate a session key that includes a shared secret key that is known by the onboard communication system and an off-board communication system disposed off-board of the vehicle system;
generate one or more encryption keys by hashing the session key with an identifier responsive to the vehicle system completing a cycle time, the identifier being based on the cycle time, wherein the cycle time is based on a predetermined characteristic of one or more of a time or location of the vehicle system, wherein the cycle time is known by the onboard communication system and the off-board communication system;
generate one or more encrypted messages by encrypting one or more messages associated with one or more of the vehicle system or a route over which the vehicle system is configured to move based on the one or more encryption keys; and
communicate the one or more encrypted messages from the onboard communication system to the off-board communication system.