| 摘要 |
An embodiment relates to characterizing a signaling environment by gathering a plurality of measurements, generated during a period of time, in response to a determination that a mobile device is within an area of location uncertainty. Such an example mobile device may generate a position fix, e.g., at or subsequent to an end of the period of time, based, at least in part, on one or more signals received at the mobile device within an area of location certainty; and in response to a determination that it is to report a travel history for at least a portion of the area of location uncertainty, generate a travel log based, at least in part, on the plurality of measurements and the position fix, and transmit at least a portion of the travel log to one or more external devices. |
