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Published 20 hours ago • verified publisher icon gotthardp

Cannot force a gateway for downlink

Open dencorpz1 opened this issue 5 years ago • 4 comments

Good day! today saw such a problem. When receiving data from 2 base stations, for some reason, the base base station has become a base with poor reception conditions, and when sending a packet, the server sends a packet through this base station. Log packages in the attachment. How can I fix this? lora_server_bag

dencorpz1 avatar Apr 10 '19 08:04 dencorpz1

Hello. What exactly is the problem? The server sends packets through the gateway with the best reception.

gotthardp avatar Apr 10 '19 16:04 gotthardp

Good day! The fact is that this base station is located 1 kilometer from the device, and the second base station is 200 meters away. The level of SNR shows that the second base station SNR is much better. The problem is that the package does not arrive from the first base station to the device, and it is impossible to interact with the device. How can I select a base station to send a packet.

dencorpz1 avatar Apr 11 '19 07:04 dencorpz1

Yeah, some RF interference could decrease the RSSI. Any lora frame may get lost, so if your device expects a response you should use confrmed frames. What you describe is not a bug; it's the current behaviour. Manual selection of a gateway is not implemented at this moment.

gotthardp avatar Apr 11 '19 16:04 gotthardp

I have exactly the same problem, it will be really usefull to have a "lock to gateway" in device config. Maybe the SNR is a better option to choose the best GW.

image

In my case, it's picking the worst one.

ruipalma avatar May 20 '20 23:05 ruipalma