fota dowload and a-gps run in parallel

[Praveen Deshmane]

Hi,

I want to get the GPS value from A- GPS continuously.

Meanwhile, if there is any new application firmware version update,

I would like to download the image with fota download.

When a fota download starts, a-gps stops issuing a new location(gps value).

How to run fota download and a-gps concrrently without disturbing works of each other?

Regards

Praveen Deshmane

 

[Øyvind]

Hello, 
the DevZone team and Nordic Semiconductor are currently entering summer vacation period, some delays in answers must be expected due to lower staffing during this period. We apologize for the inconvenience. 

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The GPS operation of the nRF9160 is time multiplexed with LTE modem, and it is possible to use the GPS and QZSS receiver to obtain position either while the LTE is in RRC Idle mode or power saving mode (PSM), or when the LTE modem is completely deactivated. Read more in the GPS Receiver chapter in nRF9160 Product Specification

From the Practical considerations in the nRF Cloud A-GPS library documentation

When A-GPS data is downloaded using LTE network, the LTE link is in RRC connected mode. The GNSS module can only operate when the device is in RRC idle mode or Power Saving Mode (PSM). The time to go from RRC connected mode to RRC idle mode is network-dependent. This time is usually not controlled by the device and is typically in the range of 5 to 70 seconds. If the GNSS module has already started before the device enters the RRC idle mode, this RRC inactivity may make TTFF appear longer than the actual time spent searching for the GNSS satellite signals.

Hopes this clears the confusion. 

Kind regards,
Øyvind