The Gateway Profile is an (optional) profile which can be assigned to a gateway for the configuration of its channel-plan. This feature must also be configured in the ChirpStack Gateway Bridge Configuration.
channels field defines the uplink channel-numbers that must be configured for the gateways using this Gateway Profile. These map to the channel-numbers defined by the LoRaWAN® Regional Parameters specification.
extraChannels field defines a list of extra channel that must be configured for the gateway using this Gateway Profile. Note that this is not supported by every LoRaWAN band. Please consult the LoRaWAN Regional Parameters specification for more information.
This feature is limited to 8-channel gateways (currently) and assumes that channels can be distributed over two radios. When defining a channel-plan, please keep in mind that the channels fit within the bandwidth of two radios.
The bandwidth of each radio depends on the bandwidth of the assigned channels:
- 500kHz channel = 1.1MHz radio bandwidth
- 250kHz channel = 1Mhz radio bandwidth
- 125kHz channel = 0.925MHz radio bandwidth