2 - Sending Messages
Messages sent from an end device to a network server via one or more nearby gateways are referred to as uplinks.
In this book, you learn the rules and best practices to follow when sending uplinks from your end device using the LoRaWAN® 1.0.4 specification.
Sending MAC Commands
Class B - Beacon Frequency Configuration Answer (BeaconFreqAns)
The end device sends the BeaconFreqAns in response to the BeaconFreqReq command. The BeaconFreqAns command is sent by the network server to request a modification to the frequency on which the end device expects to receive the Class B Beacon. Read how to send the BeaconFreqAns in the section Handle Requests to Update the Frequency of the Class B Book.