GPS without PSM

[Steven Grunza]

Since GPS can only function during the PSM window and the network can ignore the nRF9160's request for PSM mode, I need a solution that works with and without PSM mode.  This was discussed in a response to this question.  Namely the code needs to:

Connect in LTE only mode and pass some data to the network

Disconnect from the LTE network

Take the modem offline

Switch to GPS only mode

Get a GPS fix and store the location

Take the modem offline

Switch to LTE only mode

Connect to the network

Send the stored GPS data

...repeat above at some application specific rate...

The code flow in the asset_tracker example isn't really setup for this.  Is there an example that follows (roughly) the above steps?  

[Håkon Alseth]

Hi,

 

The sequence given that PSM is not available in your network is to essentially do what you state; put the modem in flight mode (CFUN=4), then enable and run the GPS, then switch back to M1/NB1 mode to send the position.

Unfortunately, we do not have a specific sample that does this.

 

Kind regards,

Håkon