LTE (Long-Term Evolution) Positioning Protocol is a protocol used to determine the location of a mobile device within a cellular network. The protocol provides location information by using various measurements taken by the mobile device and the network.
Here are some of the location information that LTE Positioning Protocol carries:
Time Difference of Arrival (TDOA): This measurement is used to calculate the distance between the mobile device and multiple base stations. The time difference between the arrival of the signal at different base stations is used to calculate the location of the mobile device.
Observed Time Difference of Arrival (OTDOA): This measurement is similar to TDOA but uses the time difference between the mobile device and the base station instead of between multiple base stations.
Cell Global Identity (CGI): This is a unique identifier for each cell in a cellular network. The CGI can be used to identify the cell where the mobile device is located.
Reference Signal Received Power (RSRP): This measurement is the received signal power from the base station. The strength of the signal can be used to estimate the distance between the mobile device and the base station.
Reference Signal Received Quality (RSRQ): This measurement is the quality of the received signal from the base station. The quality of the signal can be used to estimate the distance between the mobile device and the base station.
Serving Cell Identifier (SCID): This is a unique identifier for the cell where the mobile device is currently connected.
Cell ID: This is a unique identifier for the cell where the mobile device is currently located.
Global Navigation Satellite System (GNSS) Information: This information includes the latitude, longitude, and altitude of the mobile device, which is obtained from GPS or other satellite-based navigation systems.
Overall, LTE Positioning Protocol combines various measurements to provide accurate location information of the mobile device within the cellular network.
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