A-GPS Expiration

[ali123]

Hello.

I'm building software in which I'm using A-GPS to get a quicker GPS-fix. I have noticed that enabling the LTE-module has a bad effect on the fix-times so I want to only enable it only when necessary. Is there any way for me to check whether the A-GPS data from the last time I downloaded it is still valid?

[RM]

Hi,

You can save custom timestamp when you update the A-GPS data, you may also need RTC, especially in cases of prolong absences of GPS fix.
also, you can get the network time from cellular and compare to saved, in any case you need cellular to download fresh A-GPS data.

Depending on your solution, you may want to manage it on the server side.

Thanks,
Reuven