GPS current consumption abnormal

[Siyou]

Hi

We found abnormal current waveform when running GPS as 120s fix interval and 10s fix retry.

As below pic, the first plus is A-GPS seraching, from second plus is the fix current, but you can see the second fix(third plus) has followed a very wide(it is far beyond 10s fix retry) current plus, what's the reason of this current plus?

[Siyou]

Hi,

We found the abnormal GPS operation will affect the LTE and GPS concurrent, the GPS fix will failed in below cases with fix interval 120s, 90s or 60s, fix retry is 0(indefinitely) ,10s or 20s.

1, Start LTE before GPS get fixed;

2, Start LTE before the 1 minute GPS abnormal period;

How to get GPS fix easily and run LTE concurrently with low power consumption?

Fix failed with interval 60s and retry 20s

Fix failed with interval 120s and retry indefinitely

Fix failed with interval 120s and retry 60s