Need to figure out network parameter?

[Chongchun Moon]

Hello,

   I am using nRF9160DK(PCA10090, 1.0.0)

   I am using UDP sample to check power consumption and estimation.

   PPK2 is used for this test. It looks OK.

   I also like to use online power profile  for the convenience. But, It is hard to match on my side because of lack of network knowledge.

  

   Can you help me out to figure out about network parameter in my test environment to use in online power profile?

   I attached PPK log I got from PPK2( UDP sample, PSM mode, 40bytes packet length, 60 seconds interval)

   For the information, I am located in Montreal, Canada. TELUS is used as network operator.

  

   Thanks in advance. 

ppk_UDP_40Bytes_60sec.log

Thanks,

  Chongchun Moon

   

   

[Stian Røed Hafskjold]

Hi, attaching two illustrations trying to show how the different parameters relate to what you are seeing in the PPK plot you attached:

Going through all the parameters from top to bottom we can see that:

• PSM is enabled
• TAU interval is performed every time it wakes up, hence every 60 second
• RRC idle is disabled
• Data transfer enabled
• 40 bytes upload
• every 60 seconds
• TX output power is set to 10 dBm, representing normal conditions
• RRC inactivity timer is 21 seconds
• Connected DRX interval is 0.32 seconds
• Connected DRX ON duration varies between 40 ms and 100 ms, with an average of about 60 ms
• Connected DRX inactivity timer is 100 ms.

Adding these numbers to the Online Power Profiler gives us a total average of 3.3 mA, and a total LTE event charge of about 200 mC, which correspond to the PPK graph.

[Chongchun Moon]

Hello,

 I am appreciate very much.

 I will check on my side.

Thanks,

   Chongchun Moon