How to know for sure that PSM is working on nrf9160DK

RE: How to know for sure that PSM is working on nrf9160DK

Øyvind — Wed, 10 Jun 2020 06:57:36 GMT

Yes, if you get a connection and the network responds with something similar to what you asked for, then PSM is accepted.

Kind regards,
Øyvind

RE: How to know for sure that PSM is working on nrf9160DK

crasspm — Tue, 09 Jun 2020 00:36:11 GMT

Thanks Øyvind! One more question: If I enable PSM via AT+CPSMS and get a successful connection, is this also an authoritative way to say that PSM is accepted or is there a fallback? I'm using the mqtt_simple example.

RE: How to know for sure that PSM is working on nrf9160DK

Øyvind — Mon, 08 Jun 2020 08:06:38 GMT

Hello,

To configure PSM, you can use AT+CPSMS. The AT+CEREG will give you the current TAU configured by the network. Be aware that the PSM you request may not be exactly what the network grants your device. See this answer from my colleague as well.

Kind regards,

Øyvind