Strategy for LoRaWAN with deepsleep

  • I'm wondering about the best strategy to use deepsleep and LoRaWAN. Actually I face the following gap:

    • Deepsleep is as a reset, which means that all values are lost and the code will run from the beginning (join info is lost)

    • ABP activation will restart with framecounter equal zero, which means that you can not activate framecounter validation anymore and that will generate a security issue.

    • Join activation might work, but you always have to do a new join sequence, which means that there is always a handshake and a downlink to provide the new keys from the gateway needed. So sooner or later we face a duty cycle problem with the gateways.

    Any smart ideas to reduce energy consumption and keeping traffic low and security high?

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