I do a lot with LoRaWAN, and I like the simplicity of its approach for class A devices, which is to wake up and transmit and then listen for a reply in two defi

I do a lot with LoRaWAN, and I like the simplicity of its approach for class A devices, which is to wake up and transmit and then listen for a reply in two defined time windows. These are shortly after the transmission, so clock drift is less of an issue with cheap oscillators.