Dynamic DHCP for Wi-Fi connectivity in a vehicle
First Claim
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1. A method of wireless communication using a vehicle telematics unit, comprising the steps of:
- (a1) attempting at the vehicle telematics unit to establish a cellular connection with a wireless carrier system;
(a2) assigning an internet protocol (IP) address to a mobile device via a short range wireless communication (SRWC) link, wherein the IP address has a lease of a first short-term duration; and
(b) when, following steps (a1) and (a2), the telematics unit has not established the cellular connection at an expiration of the lease, then renewing the lease based on an absence of an established cellular connection between the telematics unit and the wireless carrier system, wherein the renewed lease has a second short-term duration which is shorter than the first short-term duration.
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Abstract
A system and a method using the system for wireless communication using a vehicle telematics unit, including the steps of: prior to a vehicle telematics unit establishing a network connection, assigning a temporary internet protocol (IP) address having a short-term lease duration to a mobile device to permit communication between the telematics unit and the mobile device; and if the network connection is not established prior to the expiration of the short-term lease duration, renewing the temporary IP address, wherein the renewal lease duration is shorter than the earlier lease duration.
23 Citations
12 Claims
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1. A method of wireless communication using a vehicle telematics unit, comprising the steps of:
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(a1) attempting at the vehicle telematics unit to establish a cellular connection with a wireless carrier system; (a2) assigning an internet protocol (IP) address to a mobile device via a short range wireless communication (SRWC) link, wherein the IP address has a lease of a first short-term duration; and (b) when, following steps (a1) and (a2), the telematics unit has not established the cellular connection at an expiration of the lease, then renewing the lease based on an absence of an established cellular connection between the telematics unit and the wireless carrier system, wherein the renewed lease has a second short-term duration which is shorter than the first short-term duration. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A method of wireless communication using a vehicle telematics unit, comprising the steps of:
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attempting to establish a cellular connection between a vehicle telematics unit and a wireless carrier system; assigning an internet protocol (IP) address to a mobile device via a short range wireless communication (SRWC) link, wherein the IP address has a lease of a first short-term duration; following the attempting and assigning steps, when the telematics unit has not established the cellular connection at an expiration of the lease, then renewing the lease associated with the IP address based on an absence of an established cellular connection between the telematics unit and the wireless carrier system, wherein the renewed lease has a second short-term duration which is shorter than the first short-term duration; after renewing the lease, then establishing the cellular connection between the telematics unit and the wireless carrier system; in response to the establishing the cellular connection, again renewing the lease associated with the IP address, wherein, after the established cellular connection, the again renewed lease has an extended duration that is longer than the first short-term duration; and
thenin response to renewing the lease having the extended duration, providing Wi-Fi hotspot service to the mobile device during the lease having the extended duration, wherein the Wi-Fi hotspot service is provided via the SRWC link between the telematics unit and the mobile device. - View Dependent Claims (11)
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12. A method of wireless communication using a vehicle telematics unit, comprising the steps of:
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(a) initiating at the vehicle telematics unit a cellular connection with a wireless carrier system based on a subscription agreement with a wireless service provider (WSP); (b) assigning at the telematics unit an internet protocol (IP) address to a mobile device located at a vehicle, wherein the assignment is via a short range wireless communication (SRWC) link, wherein the assignment has a lease of a first short-term duration; (c) following steps (a) and (b) and prior to the establishment of the cellular connection between the telematics unit and the wireless carrier system, providing content data to the mobile device via the SRWC link, wherein the content data is stored at the vehicle; (d) renewing the lease associated with the IP address based on an absence of an established cellular connection between the telematics unit and the wireless carrier system, wherein the renewed lease has a second short-term duration which is shorter than the first short-term duration; (e) following steps (a)-(d), establishing the cellular connection between the telematics unit and the wireless carrier system; and
then(f) providing Wi-Fi hotspot service at the telematics unit, wherein the Wi-Fi hotspot service is provided via the SRWC link to the mobile device using another renewed lease, wherein the another renewed lease is for an extended duration that is longer than the first short-term duration.
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Specification