u-blox LARA-R2 series System Integration Manual page 59

3. If a new device reports the observation of Cell A CellLocate
the area of visibility
4. The visibility of multiple cells provides increased accuracy based on the intersection of areas of visibility.
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CellLocate is implemented using a set of two AT commands that allow configuration of the CellLocate
(AT+ULOCCELL) and requesting position according to the user configuration (AT+ULOC). The answer is provided
in the form of an unsolicited AT command including latitude, longitude and estimated accuracy.
The accuracy of the position estimated by CellLocate
in the specific area.
Hybrid positioning
With u-blox hybrid positioning technology, u-blox cellular modules can be triggered to provide their current
position using either a u-blox GNSS receiver or the position estimated from CellLocate
which positioning method provides the best and fastest solution according to the user configuration, exploiting
the benefit of having multiple and complementary positioning methods.
Hybrid positioning is implemented through a set of three AT commands that allow GNSS receiver configuration
(AT+ULOCGNSS), CellLocate
the user configuration (AT+ULOC). The answer is provided in the form of an unsolicited AT command including
latitude, longitude and estimated accuracy (if the position has been estimated by CellLocate
parameters if the position has been computed by the GNSS receiver.
The configuration of mobile network cells does not remain static (e.g. new cells are continuously added or
existing cells are reconfigured by the network operators). For this reason, when a hybrid positioning method has
been triggered and the GNSS receiver calculates the position, a database self-learning mechanism has been
implemented so that these positions are sent to the server to update the database and maintain its accuracy.
UBX-16010573 - R02
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service configuration (AT+ULOCCELL), and requesting the position according to
Objective Specification
LARA-R2 series - System Integration Manual
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is able to provide the estimated position from
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depends on the availability of historical observations
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service
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. The choice depends on
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), and additional
System description
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