VEHICLE ORIGINATED CELLULAR COMMUNICATION TO A CALL CENTER
First Claim
1. A communication method for use by a vehicle telematics unit to provide a wireless communication from the telematics unit to a call center, comprising the steps of:
- receiving an input at a telematics unit in a vehicle, the input being associated with a desired wireless communication of speech or data from the vehicle to a call center;
selecting a call type associated with the communication such that, for the communication of speech, the selected call type is a voice cellular call and, for the communication of data, the selected call type is either an in-band modem cellular call or a non-voice channel (NVC) data connection;
carrying out a connection strategy associated with the selected call type, wherein;
if the call type is the NVC data connection, then the connection strategy includes one or both of the following two steps;
originating a packet data connection between the telematics unit and call center; and
originating an SMS data connection between the telematics unit and call center;
if the call type is the in-band modem cellular call, then the connection strategy includes a voice channel data connection retry strategy involving a plurality of different connection methods, each of which includes the steps of attempting origination of a voice channel cellular connection via an attached base station and, once an originated voice channel cellular connection is made, establishing a modem data connection between the telematics unit and call center over the originated connection;
if the call type is the voice cellular call, then the connection strategy includes the step of originating a voice channel cellular connection via an attached base station; and
sending the desired wireless communication to the call center via the originated connection.
14 Assignments
0 Petitions
Accused Products
Abstract
A system and method for making vehicle originated calls to a telematics service provider or other call center. The method includes identifying a call type associated with a desired wireless communication of speech or data to the call center, and then carrying out one of a number of different call connection processes depending on the call type. For voice channel cellular connections, an in-band modem cellular connection is preferably established in most instances using a connection retry strategy that includes primary, secondary, and possibly tertiary connection attempts. The system and method can be carried out in connection with various cellular system technologies, but is especially suited for use with GSM systems.
22 Citations
14 Claims
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1. A communication method for use by a vehicle telematics unit to provide a wireless communication from the telematics unit to a call center, comprising the steps of:
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receiving an input at a telematics unit in a vehicle, the input being associated with a desired wireless communication of speech or data from the vehicle to a call center; selecting a call type associated with the communication such that, for the communication of speech, the selected call type is a voice cellular call and, for the communication of data, the selected call type is either an in-band modem cellular call or a non-voice channel (NVC) data connection; carrying out a connection strategy associated with the selected call type, wherein; if the call type is the NVC data connection, then the connection strategy includes one or both of the following two steps; originating a packet data connection between the telematics unit and call center; and originating an SMS data connection between the telematics unit and call center; if the call type is the in-band modem cellular call, then the connection strategy includes a voice channel data connection retry strategy involving a plurality of different connection methods, each of which includes the steps of attempting origination of a voice channel cellular connection via an attached base station and, once an originated voice channel cellular connection is made, establishing a modem data connection between the telematics unit and call center over the originated connection; if the call type is the voice cellular call, then the connection strategy includes the step of originating a voice channel cellular connection via an attached base station; and sending the desired wireless communication to the call center via the originated connection. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A communication method for establishing a vehicle originated data connection with a call center over a GSM cellular system, comprising the steps of:
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receiving an input at a telematics unit in a vehicle, the input being associated with a desired wireless communication of data from the vehicle to the call center; selecting a call type associated with the data, wherein the call type comprises one of a plurality of different data connections, and wherein the plurality of different data connections includes at least an in-band modem cellular call or a non-voice channel (NVC) data connection; carrying out a connection strategy associated with the selected call type, wherein, if the call type is the in-band modem cellular call, then the connection strategy includes a voice channel data connection retry strategy involving a plurality of different connection methods including primary, secondary, and tertiary connection methods, each of which includes the steps of attempting origination of a voice channel cellular connection and, once an originated voice channel cellular connection is made, establishing a modem data connection between the telematics unit and call center over the originated connection; wherein the primary connection method comprises originating the data connection using an attached base station, and if the primary connection method fails to establish the data connection, then the method further comprises carrying out the secondary connection method which attempts to obtain an attached base station using one or more PLMNs previously used by the telematics unit, and if the secondary connection method fails to establish the data connection, then the method further comprises carrying out the tertiary connection method which attempts reselection of one or more PLMNs using a manual network selection mode supported by the GSM cellular system; and wherein, if the call type is the NVC data connection, then the connection strategy includes the step of originating a packet data connection between the telematics unit and call center; and after the data connection is established, sending the data to the call center via the data connection. - View Dependent Claims (13, 14)
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Specification