LoRa Network Server 1.0.42 and AS923

[Amir Ronen]

HI
I am working on an AEP Conduit with version 1.4.3
And lora server version 1.0.42 set on the AS923 frequency plan.
I have two issues:
1. with dwell on (both down link and up link) i still need to put the RX1 window on DR_0 to be able get answer from the server although DR_2 should be the minimum data rate when dwell is on (i have also set the minimum data rate to 2 in the LoRa setup). is that a bug?
2. i think that the channels numbering is wrong, and you skip channel 2.
so on the nodered debug window i get channels 0,1,3,4,5,6,7

Thank you
Amir

[Jason Reiss]

1. Rx1 should use DR0 only if the end device uplink was DR0. Since the end-device may not know the dwell-time setting until after an uplink it may be possible of the end-device to not receive a packet.

When you say you need to set the Rx1 window to DR0, what is the uplink DR?

2. The AS923 plan has 2 default channels. The Join Accept message sends down 5 additional channels. These are added to channel indexes 2-6.
Two more channels for DR6 and DR7 are send in the first downlink.
The channel 2 you are missing is 923.6 and the gateway is configured to listen on the is channel. The network server is not sending this channel at the moment, an additional MAC command will be needed.

AT+TXCH
0 923200000 5 0 1
1 923400000 5 0 1
2 922200000 5 0 1
3 922400000 5 0 1
4 922600000 5 0 1
5 922800000 5 0 1
6 923000000 5 0 1
7 923400000 6 6 1
8 923900000 7 7 1

[Amir Ronen]

Thanks for the quick response
1.Since the AS923 protocol specify that the join data rate is DR_2
I sent the join request with that rate but could not get the answer unless i forced DR_0 for RX1 window.
2.channels numbering from nodered debug:(Channels 2 never shows)

“chan”: 0, “cls”: 0, “codr”: “4/5”, “datr”: “SF7BW125”, “deveui”: “70-b3-d5-a9-f0-00-00-73”, “freq”: “923.2”,

“chan”: 1, “cls”: 0, “codr”: “4/5”, “datr”: “SF10BW125”, “deveui”: “70-b3-d5-a9-f0-00-00-73”, “freq”: “923.4”

“chan”: 3, “cls”: 0, “codr”: “4/5”, “datr”: “SF7BW125”, “deveui”: “70-b3-d5-a9-f0-00-00-73”, “freq”: “922.2”

“chan”: 4, “cls”: 0, “codr”: “4/5”, “datr”: “SF10BW125”, “deveui”: “70-b3-d5-a9-f0-00-00-73”, “freq”: “922.4”

“chan”: 5, “cls”: 0, “codr”: “4/5”, “datr”: “SF7BW125”, “deveui”: “70-b3-d5-a9-f0-00-00-73”, “freq”: “922.6”

“chan”: 6, “cls”: 0, “codr”: “4/5”, “datr”: “SF10BW125”, “deveui”: “70-b3-d5-a9-f0-00-00-73”, “freq”: “922.8”

“chan”: 7, “cls”: 0, “codr”: “4/5”, “datr”: “SF7BW125”, “deveui”: “70-b3-d5-a9-f0-00-00-73”, “freq”: “923”

BR
AR

[Amir Ronen]

Sorry my bad!
I sent the join request on DR_0

[Author]

Posts