Method for controlling the timing of wireless communications involving telematics-equipped vehicles
View Patent ↗A timing control method for use with wireless communications involving telematics-equipped vehicles. The timing control method generally determines a temporally-distributed sequence of message response times for a group of telematics-equipped vehicles, and then includes these different response times in wireless messages that are sent to the vehicles. In reply, the vehicles use the various message response times to respond in an apportioned or distributed fashion that generally correlates with the temporally-distributed sequence; instead of all at once. In another disclosed method, the response times are determined at each vehicle itself. The methods can be used for requesting data from vehicles via SMS messages.
1. A method for controlling the timing of wireless communications involving telematics-equipped vehicles, comprising the steps of:
(a) receiving a wireless request message at each of a plurality of telematics-equipped vehicles;
(b) providing, for a group of vehicles, a response time that is different than the response time for one or more other groups of vehicles, and is determined based on a unique identifier stored at each vehicle, wherein the message response time for the vehicles within the group is the same, and wherein a group comprises a plurality of vehicles;
(c) obtaining, at each vehicle, data requested by the wireless request message; and
(d) sending from each vehicle a wireless response message that includes the requested data, wherein the wireless response message is sent from each vehicle at its associated response time.
2. The method of claim 1 , further comprising the step of determining the different response times by utilizing at least one factor selected from the list consisting of: an estimated response size, an estimated response volume, an estimated response time, an estimated response type, an estimated geographic distribution of the responses, and an intended response recipient.
3. The method of claim 1 , further comprising the step of adjusting the size and/or number of the groups so that the impact to a corresponding wireless system is reduced.
4. The method of claim 1 , further comprising the step of adjusting the message response times of each group so that the impact to a corresponding wireless system is reduced.
5. The method of claim 1 , further comprising the step of selecting the message response types of each group so that the impact to a corresponding wireless system is reduced.
6. The method of claim 1 , wherein the step of providing a response time for each group of vehicles comprises including instructions in the wireless request message that cause each vehicle to respond at its associated response time.
7. The method of claim 1 , wherein step (a) further comprises receiving short message service (SMS) messages at each group of vehicles, wherein each SMS message includes the instructions for responding at the associated response time in a payload section of the SMS message.
8. A method for controlling the timing of wireless communications involving telematics-equipped vehicles, comprising the steps of:
(a) determining first and second message response times based on a unique identifier stored at a vehicle;
(b) sending wireless request messages to a plurality of groups of telematics-equipped vehicles, wherein a first group receives a wireless request messages including the first message response time and a second group receives a wireless request messages including the second message response time, wherein a group comprises a plurality of telematics-equipped vehicles; and
(c) sending wireless response messages, at the message response time included in the wireless request messages, from the plurality of groups of telematics-equipped vehicles in reply to the wireless request messages, wherein the wireless response messages that are sent according to the first message response time are generally sent before the wireless response messages that are sent according to the second message response time.
9. The method of claim 8 , further comprising the step of determining the first and second message response times by utilizing at least one factor selected from the list consisting of: an estimated response size, an estimated response volume, an estimated response time, an estimated response type, an estimated geographic distribution of the responses, and an intended response recipient.
10. The method of claim 8 , wherein each wireless request message to the plurality of telematics-equipped vehicles includes the following components: requested information, an intended recipient and a message response time.
11. The method of claim 8 , wherein the wireless request messages are short message service (SMS) messages that include the message response times in payload sections of the SMS messages.
12. The method of claim 11 , wherein the wireless response messages are packet data messages.
13. A method for controlling the timing of wireless communications involving telematics-equipped vehicles, comprising the steps of:
(a) identifying a first and a second group of telematics-equipped vehicles,wherein a group comprises a plurality of telematics-equipped vehicles;
(b) determining a temporally-distributed sequence of message response times for the first and second groups of telematics-equipped vehicles, that generally attempts to spread out wireless response messages over a period of time, the determination of the temporally-distributed sequence considers at least one factor selected from the list consisting of: an estimated response size, an estimated response volume, an estimated response time, an estimated response type, an estimated geographic distribution of the responses, and an intended response recipient, wherein the temporally-distributed sequence of message response times is based on unique identifiers stored at the plurality of telematics-equipped vehicles, and wherein the message response time for the vehicles within the group is the same;
(c) sending wireless request messages from a call center to the first and second groups of telematics-equipped vehicles, each of the wireless request messages includes a message response time that is part of the temporally-distributed sequence; and
(d) receiving wireless response messages from the first and second groups of telematics-equipped vehicles, wherein the wireless response messages are received in an order that generally correlates with the temporally-distributed sequence.
14. The method of claim 13 , wherein each wireless request message sent to the first and second groups of telematics-equipped vehicles includes the following components: requested information, an intended recipient and a message response time.
15. The method of claim 13 , wherein step (c) further comprises sending short message service (SMS) messages from the call center to the first and second groups of telematics-equipped vehicles, where the SMS messages include the message response times in payload sections of the SMS messages.
16. The method of claim 15 , wherein step (d) further comprises receiving packet data messages from the plurality of telematics-equipped vehicles.