Method of validating 1X packet availability in a vehicle telematics unit
US9107195B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 9, 2010 |
| Grant date | Aug 11, 2015 |
| Priority date | — |
| Expiry date | Apr 26, 2034 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04W4/20
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A method of communicating with a telematics-equipped vehicle includes receiving a circuit-switched telephone call at a central facility from a telematics-equipped vehicle via a wireless carrier system that is in local communication with the telematics-equipped vehicle; determining during the circuit-switched telephone call that a separate packet-data communication session between the telematics-equipped vehicle and the central facility is desired; identifying the wireless carrier system that is in local communication with the telematics-equipped vehicle; querying the identified wireless carrier system from the central facility to determine whether the telematics-equipped vehicle is authorized to establish a packet-data communication session using the identified wireless carrier system; if so, obtaining an Internet protocol (IP) address from the identified wireless carrier system; and commencing the exchange of data between the telematics-equipped vehicle and the central facility using the obtained IP address.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.