Hello,
I am planning a private LoRaWAN network with the following setup:
- Gateway: RAK7289V2 (dual concentrator, 16 channels)
- End devices: RAK3172
- Network Server: ChirpStack
- Region: KR920
- Device Class: Class C
The network will have approximately 500 nodes.
Our application requirements are:
- Bidirectional communication
- Remote control commands with a response time of within 10 seconds
- Each node controls a motor after receiving a downlink command.
- After executing the command successfully, the node sends an acknowledgment (ACK) back to the server.
I understand that Class C devices can receive downlink messages almost at any time, but I am concerned about the gateway’s downlink capacity when supporting around 500 devices.
My questions are:
- Is a single RAK7289V2 (16-channel) sufficient for approximately 500 Class C devices?
- Will downlink capacity become the main bottleneck in this scenario?
- Can this architecture reliably support command-and-response communication with a response time of less than 10 seconds?
- Is ChirpStack suitable for this type of deployment, or are there any recommended configurations or optimizations?
- Are there any limitations or best practices specific to the KR920 region that I should be aware of?
If anyone has experience deploying a similar system, I would greatly appreciate your advice.
Thank you!