Outgoing binary SMS messaging for vehicle communication with a call center
First Claim
1. An outgoing SMS messaging method for sending an SMS message from a vehicle telematics unit to a call center, comprising the steps of:
- (a) determining that wireless coverage is available prior to an expiration of a time;
(b) if an active voice call is in progress using the telematics unit, then carrying out an SMS origination process during the voice call without performing a connection management procedure; and
(c) if no active voice call is in progress using the telematics unit, then based on an identifier associated with a payload of the SMS message, either discarding the SMS message without it being sent or sending the SMS message using an SMS origination process that includes carrying out a connection management procedure for the telematics unit.
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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 each of which utilize at least one of a number of different voice and data call origination processes. The system and method can be carried out in connection with various cellular system technologies, but is especially suited for use with GSM systems.
13 Citations
13 Claims
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1. An outgoing SMS messaging method for sending an SMS message from a vehicle telematics unit to a call center, comprising the steps of:
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(a) determining that wireless coverage is available prior to an expiration of a time; (b) if an active voice call is in progress using the telematics unit, then carrying out an SMS origination process during the voice call without performing a connection management procedure; and (c) if no active voice call is in progress using the telematics unit, then based on an identifier associated with a payload of the SMS message, either discarding the SMS message without it being sent or sending the SMS message using an SMS origination process that includes carrying out a connection management procedure for the telematics unit. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. An outgoing SMS messaging method for sending an SMS message from a vehicle telematics unit to a call center, comprising the steps of:
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(a) determining that wireless coverage is available prior to an expiration of a time; (b) if an active voice call is in progress using the telematics unit, then carrying out an SMS origination process without performing a connection management procedure; and (c) if no active voice call is in progress using the telematics unit, then based on an identifier associated with a payload of the SMS message, either discarding the SMS message without it being sent or sending the SMS message using an SMS origination process that includes carrying out a connection management procedure for the telematics unit; wherein step (c) further comprises the step of carrying out an outer loop iterative process in which the telematics unit attempts to establish a successful SMS connection to the wireless system network equipment.
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9. An outgoing SMS messaging method for sending an SMS message from a vehicle telematics unit to a call center, comprising the steps of:
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(a) determining that wireless coverage is available prior to an expiration of a time; (b) if an active voice call is in progress using the telematics unit, then carrying out an SMS origination process without performing a connection management procedure; and (c) if no active voice call is in progress using the telematics unit, then based on an identifier associated with a payload of the SMS message, either discarding the SMS message without it being sent or sending the SMS message using an SMS origination process that includes carrying out a connection management procedure for the telematics unit; wherein step (c) further comprises using an outer loop iterative process has a first counter that counts the number of failed attempts at a successful connection to the network equipment and an inner loop iterative process using a second counter that counts the number of times that the inner loop iterative process is carried out unsuccessfully. - View Dependent Claims (10, 11, 12, 13)
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Specification