This post is older than 2 years and might not be relevant anymore
More Info: Consider searching for newer posts

Can we inject LBS Latitude and longitude to GPS to reduce the fix time?

Hi,

we are developing NB-IOT based GPS tracker based on nRF9160.

we have implemented the A-GPS based on SUPL. After using A-GPS there is a minor improvement in the overall fix time. But still GPS fix time more compare to other GPS(different make) devices under same environment condition.

Also we have implemented the LBS based positioning in nRF9160 based on cell information(mcc,mnc,lac and cid) using third party API(unwiredlabs.com).

Even though  accuracy is not great(~1KM) its able to get cell latitude and longitude.

So my questions are

1.Can we inject LBS Latitude and longitude to GPS to reduce the fix time and get accurate location? similar to SUPL data injection.

2.Does nrf9160 has AT command/options to get nearby cell ids with RSSI value to try triangulation?, right now we are using MONITOR AT command to get the registered cell id.

3. Is there any other option to reduce the fix time/improve the GPS performance?

Thanks,

Bala

Related