Hi,
is it possible to configure the RX2 frequency slot of the Network Server equal to the RX1 device’s join frequency ?
My aim is to send a DownLink message to a class C end-node using the same frequency used during join procedure.
thanks
The RX1 frequency is dependent on the TX frequency of the device. It is not fixed so which frequency would you want to use?
A Class C device should use the RX2 frequency for receiving downlinks.
Is your device not following protocol, where you want to change the LNS behavior?
No, it is fixed per the RP001 (or RP002) Regional Specification, for which a lot of smart people got together to choose seemingly arbitrary values that are actually pretty intelligent.
That is not a standard thing for LoRaWAN. If the goal is to get more bandwidth, please note that contemporary gateways that are based on the SX1301 only have one downlink path and can only send one message at any time.
While the standard didn’t say how the RX2 channel is to be selected (aside from the default), LoRaWAN-compliant devices are supposed to join on all the default channels.
You can increase the available capacity of RX2 by using a higher datarate, so that each downlink send by the gateway takes up less air time. For my projects, I have been using at least DR3. You should go as high as possible, within the permissible conditions of your project.
Thank you for your reply.
My device is a monochannel with a fixed frequency to communicate
with a gateway, now I’m developing the change frequency from RX1 to RX2 and viceversa
Thank you for your reply.
My device is a monochannel with a fixed frequency to communicate
with a gateway, now I’m developing the change frequency from RX1 to RX2 and viceversa.
Thank you for advice about datarate
This is against LoRaWAN specs. Hop randomly the frequencies.