Measuring PER in OpenThread for Certification Testing

[eriklins]

Hello Nordic team,

how is it possible to perform Packet Error Rate testing during an active OpenThread connection between two nRF52840 devices? The requested test scenario is this:

Scenario: Measuring PER through Ping Between Two Devices
Given: Two nRF52840 radio modules configured with OpenThread.
When: Sample 1 sends X pings broadcast and receives responses from Sample 2.
Then: Sample 1 analyzes the responses and calculates the PER.

I'm aware of the Radio Test sample app in nRF Connect SDK (https://docs.nordicsemi.com/bundle/ncs-latest/page/nrf/samples/peripheral/radio_test/README.html), but this does operate more basic on 802.15.4. radio level and hence would not be usable for the above scenario.

Does there exist any sample application from Nordic for that?

Thanks,
ER!K

[ketiljo]

If this is related to EN 301 489 EMC immunity testing, there's no requirement to measure PER if this can't be done. You just have to monitor an active link and check if it breaks or not during the testing. 

[eriklins]

It would be about ETSI EN 300 328. The PER calculations are needed to do the Receiver blocking test.

[ketiljo]

Ok, that will be different. This is a test where you don't use the OpenThread protocoll, or any protocoll as it's based on the raw receiver per channel. You can use radio test for this, with the data rate set to 802.15.4.

See https://developer.nordicsemi.com/nRF_Connect_SDK/doc/latest/nrf/samples/peripheral/radio_test/README.html