Mobile location data is collected and passed through apps through iOS and Android Location Services. Apple and Google collect and send Location signals through Assisted GPS, which can be broken down into the following:
Assisted GPS (aGPS): Augments traditional GPS by using cell tower and Wi-Fi data to enhance speed, quality, and precision of satellite signals.
Assisted GPS in Suburban vs. Urban areas
In less dense areas, GPS satellites have fewer barrier, so signals are generally more accurate. Wi-fi and cell tower can speed the process of picking up a signal. In dense cities or difficult weather conditions, GPS satellites might not always be able to get through, so cell tower and wi-fi triangulation help inform location and speed signal detection.
Ensuring quality data
Once a lat/long is determined, we collect location data from apps and through bid-stream, but not all signals are created equal. In order to ensure we are passed quality location data, we:
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