System and method for communicating using an in-vehicle system
View Patent ↗A system and method for communicating wirelessly from a mobile device to a remote receiver station is disclosed. The system includes a controller configured to monitor a status of the mobile device and, upon an initiation event, initiate a data transfer process to wirelessly communicate data to the remote receiver station. The system also includes a voice-band modem that, upon initiation of the data transfer process. The voice-band modem is configured to receive data for transfer to the remote receiver station, encode the data to form a series of encoded packets, and transmit the encoded packets to the remote receiver station using a first modulation scheme. Thereafter, unless an indication that the series of packets has been received by at the receiving station is provided, the voice-band modem automatically retransmit the encoded packets to the remote receiver station using a second modulation scheme.
1. A mobile device for communicating wirelessly with a remote receiver station, the mobile device comprising:
a controller configured to monitor a status of the mobile device and, upon an initiation event, initiate a data transfer process to wirelessly communicate data to the remote receiver station;
a voice-band modem that, upon initiation of the data transfer process, is configured to communicate with the controller to:
receive source data for transfer to the remote receiver station;
encode the source data to form a series of encoded packets;
transmit the encoded packets to the remote receiver station using a first modulation scheme; and
unless an indication is provided that the series of packets has been received by the receiving station, automatically retransmit the encoded packets to the remote receiver station using a second modulation scheme,
wherein the voice-band modem and controller are further configured to communicate to use a first burst format for the first modulation scheme and at least one of a second burst format and a third burst format for the second modulation scheme.
2. The mobile device of claim 1 wherein the first burst format uses 12 bits per symbol and the second and third burst format use 6 bits per symbol.
3. A mobile device for communicating wirelessly with a remote receiver station, the mobile device comprising:
a controller configured to monitor a status of the mobile device and, upon an initiation event, initiate a data transfer process to wirelessly communicate data to the remote receiver station;
a voice-band modem that, upon initiation of the data transfer process, is configured to communicate with the controller to:
receive source data for transfer to the remote receiver station;
encode the source data to form a series of encoded packets;
transmit the encoded packets to the remote receiver station using a first modulation scheme; and
unless an indication is provided that the series of packets has been received by the receiving station, automatically retransmit the encoded packets to the remote receiver station using a second modulation scheme,
wherein for the first and second modulation scheme, each symbol is formed as a sum of k sinusoids out of a possible set of n sinusoids to transmit
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bits of information.
4. The mobile device of claim 3 wherein the voice-band modem and controller are further configured to communicate to utilize orthogonal tones corresponding to the n sinusoids.
5. A mobile device for communicating wirelessly from a mobile device to a remote receiver station, the mobile device comprising:
a controller configured to monitor a status of the mobile device and, upon an initiation event, initiate a data transfer process to wirelessly communicate data to the remote receiver station;
a voice-band modem that, upon initiation of the data transfer process, is configured to communicate with the controller to:
receive source data for transfer to the remote receiver station;
encode the source data to form a series of encoded packets;
transmit the encoded packets to the remote receiver station using a first modulation scheme; and
unless an indication is provided that the series of packets has been received by the receiving station, automatically retransmit the encoded packets to the remote receiver station using a second modulation scheme,
wherein the voice-band modem and controller are further configured to communicate to withhold transmission of the series of encoded packets until a trigger signal is received by the mobile device to indicate a readiness of the remote receiver station to receive the series of encoded packets from the mobile device.
6. The mobile device of claim 5 wherein the indication that the series of packets has been received by the receiving station is a discontinuation of receiving the trigger signal from the remote receiver station.