RE: nRF9160 High Bandwidth Power Consumption Evaluation

willdeng — Thu, 30 Apr 2020 17:09:07 GMT

Thanks a bunch Hakon. This is super helpful in ballparking the level of power consumption that I should expect and put things in perspective.

RE: nRF9160 High Bandwidth Power Consumption Evaluation

Håkon Alseth — Thu, 30 Apr 2020 12:20:54 GMT

Hi Will,

A quick calculation, using 2.56 sec eDRX, and uploading a 10kByte payload (UDP) every 5 seconds, shows that the average is about 27 mA, assuming 23 dBm output power.

Note that these are calculated values, and your measured might differ, as things like output power will be determined based on the signal strength of your link (eNB drives this setting), and re-transmits could also occur over-the-air.

Sending one payload of 1 kB every second increases average to close to 31 mA.

I would recommend that you setup a test to replicate your requirements and measure the usage, as the above are ballpark numbers.

Kind regards,

Håkon