Standalone; Assisted Gps; Sdk - Ericsson F5521gw User Manual

5.4.1

Standalone

Standalone mode uses the satellites to acquire the information needed for the
GPS function like almanac and ephemeris data. The performance in this mode
depends on the number of satellites that are visible to the GPS receiver and
the line of sight the GPS receiver is in with the satellites.
5.4.2

Assisted GPS

An Assisted GPS mode is supported with network assisted. In the Assisted
mode the external ephemeris data is received through an aiding server. As the
ephemeris data is received through an aiding server instead of reading from
the received satellite signal the performance is increased and the power
consumption decreased.
Data is transmitted over the mobile broadband connection when using
assisted GPS which may imply a cost, check your mobile subscription plan for
details.
5.4.2.1 Network assisted
The network assisted GPS is using Secure User Plane Location (SUPL). This
is a standard promoted by Open Mobile Alliance specifying the interactions
between the SUPL Enabled Terminal and the SUPL server. The SUPL server
is hosted by the operators. The user may need a separate subscription
towards the operators to enable network assisted GPS, check your mobile
subscription plan for details.
5.5

SDK

In addition to the AT-command interface, an API interface for F5521gw is
provided as part of the SDK package. The API library is written in C++ and will
provide third-party developers with a simplified interface to access device
functionality.
The API is delivered as a Dynamic Link-Library (DLL), which exposes all
necessary functionality to third party applications.
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