Device OS LBS Specifics
 Staying ahead of
the curve, Sprint has had open GPS capabilities
for over seven years, offering autonomous
GPS, MS-based GPS, etc. The only instance
where a device is closed are Sprint’s
legacy CDMA-type feature phone that has
mobile Java. The Instinct is the first CDMA mobile java handset on which Sprint opened up the GPS API.
To build a native application, we have several open APIs for GPS. Below is an illustration of which devices have autonomous GPS, MS-based GPS, MS-assisted and cell-tower. Android, BlackBerry, WebOS and Windows Mobile are supported software platforms that support open access to the GPS capabilities on the device. iDEN has had open GPS and cell tower APIs since 2002.
Device Type vs Location Type
MS-Based GPS DevicesThe advantages of MS-Based GPS again are:
Devices that have MS-Based GPS are:
CDMA Feature Phone LocationWith a feature phone, the applications have to be signed and once signed it enables access to everything. The Instinct is a little bit of an exception in that the MS-based does not need to be signed.
Android LocationThe Android’s current configuration has a GPS provider with autonomous GPS. The gpsOneXTRA is just like the PDE except the data is good for a few days instead of a few hours. Also offered is high precision GPS accuracy and a very fast update rate. On the network side, the Android reads cell tower location.
When using the longitude/latitude of the serving cell tower, it is only guaranteed to be accurate on the Sprint network. If the device is roaming on another network, typically the location will be incorrect because other network do not populate that type of data since it is not needed for voice calls. In addition to the Android, the Blackberry has longitude/latitude location from cell tower.
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