Patent ID: 7460871

Claim:
A method for tracking a telemetry device over a wireless network, the method comprising: determining that the telemetry device is operating in a first mode requiring assisted Global Positioning System (A-GPS) data from the wireless network to determine location of the telemetry device; transmitting the A-GPS data to the telemetry device if the telemetry device is operating in the first mode, wherein the telemetry device operates in a second mode to obtain GPS data autonomously for determining the location when the telemetry device is outside of the coverage area of the wireless network; transmitting a request message to the telemetry device requesting retrieval of data collected by the telemetry device according to a wireless protocol: and receiving a response message containing the data from the telemetry device in response to the request message wherein a response window can be configured on the telemetry device and the telemetry device delays sending data using an offset in the response window.