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 - Ping Slot Information Request (PingSlotInfoReq)
The PingSlotInfoReq is sent by end devices using Class B to inform the network server of its intent to change the periodicity of its ping slots. The network server responds with the PingSlotInfoAns command containing an empty payload. Read more in section Increasing the Number of Ping Slots Used in Each Beacon Window of the Class B Book.