Method of establishing communication between devices in a vehicle
First Claim
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1. A method for establishing secure short range wireless communication between devices in a vehicle, comprising the steps of:
- (a) carrying out the following steps (a1) through (a3) at a vehicle interface module, a vehicle telematics unit, or both;
(a1) obtaining a vehicle identifier associated with the vehicle;
(a2) obtaining a device identifier associated with the vehicle interface module, the vehicle telematics unit, or both; and
(a3) determining a pin number using the vehicle identifier and the device identifier; and
(b) communicating between the vehicle interface module and the vehicle telematics unit via short range wireless communication in a secure manner using the pin number.
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Abstract
A method and system for establishing secure short range wireless communication between devices in a vehicle. The method involves obtaining a vehicle identifier associated with the vehicle and a module identifier associated with a vehicle module. Then, the method determines a secure pin number for the vehicle module and a similar pin for a vehicle telematics unit. Once the secure pin number is determined at both devices then the devices can communicate via short range wireless communication in a secure manner using the secure pin number.
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Citations
15 Claims
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1. A method for establishing secure short range wireless communication between devices in a vehicle, comprising the steps of:
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(a) carrying out the following steps (a1) through (a3) at a vehicle interface module, a vehicle telematics unit, or both; (a1) obtaining a vehicle identifier associated with the vehicle; (a2) obtaining a device identifier associated with the vehicle interface module, the vehicle telematics unit, or both; and (a3) determining a pin number using the vehicle identifier and the device identifier; and (b) communicating between the vehicle interface module and the vehicle telematics unit via short range wireless communication in a secure manner using the pin number. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A method for establishing secure short range wireless communication between devices in a vehicle, comprising the steps of:
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(a) carrying out the following steps (a1) through (a4) at a vehicle interface module located in a vehicle; (a1) receiving a vehicle identifier associated with the vehicle; (a2) determining a combined number using the vehicle identifier and a module identifier assigned to the vehicle interface module; (a3) determining a secure number by encrypting the combined number; and (a4) determining a pin number by shortening the secure number; (b) carrying out the following steps (b1) through (b4) at a vehicle telematics unit for the vehicle; (b1) receiving the module identifier; (b2) determining the combined number using the module identifier and the vehicle identifier; (b3) determining the secure number by encrypting the combined number; and (b4) determining the pin number by shortening the secure number; and (c) communicating between the vehicle interface module and the vehicle telematics unit via short range wireless communication in a secure manner using the pin number. - View Dependent Claims (12, 13, 14)
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15. A system for establishing secure short range wireless communication in a vehicle, comprising a vehicle telematics unit (VTU) and a vehicle interface module (VIM), wherein the vehicle interface module includes a VIM processor and computer readable memory that contains instructions that are executed by the VIM processor to carry out the following steps:
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(a) receiving a vehicle identifier at a vehicle interface module; and (b) determining a pin number using the vehicle identifier and a module identifier of the vehicle interface module; wherein the vehicle telematics unit includes a VTU processor and computer readable memory that contains instructions that are executed by the VTU processor to carry out the following steps; (c) receiving the module identifier at the vehicle telematics unit; and (d) determining the pin number using the vehicle identifier and the module identifier; and wherein the vehicle telematics unit and vehicle interface module each contain wireless communication circuitry that operates to carry out short range wireless communication between the vehicle telematics unit and vehicle interface module using the pin number.
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Specification