Vehicle telematics unit activation with provisioning detection
First Claim
1. A vehicle telematics unit activation method for use with a wireless cellular network, comprising the steps of:
- (a) receiving a connection request via an initiating input at a telematics unit in a vehicle;
(b) attempting a location update with the wireless cellular network;
(c) receiving a location update rejection and an identifier indicating a reason for the rejection;
(d) re-attempting the location update if the identifier has a first value; and
(e) waiting for a subsequent initiating input before re-attempting the location update if the identifier has a second value.
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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. Cell selection can be carried out using an acquisition task, background scan and inter-country PLMN reselection process that are used to select among available PLMNs and base stations. The system and method can be carried out in connection with various cellular system technologies, but is especially suited for use with GSM systems.
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Citations
15 Claims
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1. A vehicle telematics unit activation method for use with a wireless cellular network, comprising the steps of:
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(a) receiving a connection request via an initiating input at a telematics unit in a vehicle; (b) attempting a location update with the wireless cellular network; (c) receiving a location update rejection and an identifier indicating a reason for the rejection; (d) re-attempting the location update if the identifier has a first value; and (e) waiting for a subsequent initiating input before re-attempting the location update if the identifier has a second value. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A vehicle telematics unit activation method for use with a GSM wireless cellular network, comprising the steps of:
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(a) receiving an initiating input and determining that the telematics unit has not been activated on the GSM network; (b) attempting a location update with the GSM network; (c) receiving a location update rejection and cause code; (d) re-attempting the location update only after receiving another initiating input if the cause code indicates that an IMSI for the telematics unit is not contained in a home location register for the GSM network; and
otherwise(e) re-attempting the location update one or more times for other causes of the rejection. - View Dependent Claims (13, 14, 15)
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Specification