Which method utilizes cellular triangulation to estimate a user's location?

Cellular triangulation is a method that determines a user's location by evaluating the signal strength or timing data from multiple cellular towers. In this approach, a device communicates with at least three different cell towers, and by analyzing the signals received from these towers, the system can estimate the user's location based on the positions of the towers in relation to the device.

Coarse positioning utilizes these principles effectively, as it typically does not require the precision of GPS (Global Positioning System) and can provide a general geographical area where the user is located. This method is especially useful in urban environments where GPS signals might be weakened due to obstructing buildings or other structures.

In contrast, GPS relies on satellites and is not based on triangulation from cellular towers, while an Indoor Positioning System uses various techniques, including Wi-Fi or Bluetooth signals, to determine location indoors, and Wi-Fi positioning generally involves analyzing Wi-Fi access points to pinpoint a location, which is distinct from cellular triangulation.