Changes for page LoRaWAN Communication Debug
Last modified by Edwin Chen on 2025/01/29 20:30
Change comment:
There is no comment for this version
Summary
-
Page properties (1 modified, 0 added, 0 removed)
Details
- Page properties
-
- Content
-
... ... @@ -4,7 +4,7 @@ 4 4 5 5 6 6 7 -= 1.(%style="display:none" %) (%%) OTAA Join Process Debug =7 += z = 8 8 9 9 10 10 These pages are useful to check what is wrong on the Join process. Below shows the four steps that we can check the Join Process. ... ... @@ -44,17 +44,17 @@ 44 44 45 45 46 46 47 -(% style="color:blue" %)**3. Gateway TrafficPagein LoRaWAN Server**47 +(% style="color:blue" %)**3. Gateway Live data in LoRaWAN Server** 48 48 49 -* IftheJoin Request packetrivehegatewaytrafficinserver? If not, check the internet connection and gateway LoRaWAN serversettings.49 +* Does the gateway real-time data contain information about Join Request? If not, check the internet connection and gateway LoRaWAN server Settings. 50 50 51 -* Ifthe server send back a Join Accept for the Join Request?if not, checkifthe keysfrom the device match the keysyou put in the server, or try to choose a different server route for thisend device.51 +* Does the server send back a Join Accept for the Join Request? If not, check that the key from the device matches the key you put into the server, or try to choose a different server route for that end device. 52 52 53 53 * If the Join Accept message are in correct frequency? If you set the server to use US915 band, and your end node and gateway is EU868, you will see the Join Accept message are in US915 band so no possible to Join success. 54 54 55 55 [[image:image-20220526163633-3.png]] 56 56 57 -The Traffic for the End node in the server, use TTN as example 57 +The Traffic for the End node in the server, use TTN as example. 58 58 59 59 60 60 ... ... @@ -62,14 +62,14 @@ 62 62 63 63 * If this data page shows the Join Request message from the end node? If not, most properly you have wrong settings in the keys. Keys in the server doesn't match the keys in End Node. 64 64 65 -[[image:image-202 20526163704-4.png]]65 +[[image:image-20240123150720-1.png||height="459" width="1182"]] 66 66 67 67 The data for the end device set in server 68 68 69 69 70 -[[image:image-202 20526163732-5.png]]70 +[[image:image-20240123150943-2.png||height="556" width="1179"]] 71 71 72 -Check if OTAA Keys match the keys in device 72 +Check if OTAA Keys match the keys in device. 73 73 74 74 75 75 = 2. Notice of US915/CN470/AU915 Frequency band = ... ... @@ -131,7 +131,7 @@ 131 131 If we look at the [[TTN network server frequency plan>>url:https://www.thethingsnetwork.org/docs/lorawan/frequency-plans.html]], we can see the US915 frequency band use the channel 8~~15.So the End Node must work at the same frequency in US915 8~~15 channels for TTN server. 132 132 ))) 133 133 134 -[[image:image-202 20526164052-9.png]]134 +[[image:image-20240123151225-3.png||height="434" width="902"]] 135 135 136 136 ((( 137 137 TTN FREQUENCY PLAN ... ... @@ -145,7 +145,7 @@ 145 145 146 146 (% style="display:none" %) (%%) 147 147 148 -= 3. Why isee data lost/unperiocially uplinkdata?Even the signal strength is good =148 += 3. Why I see data lost/ is not periodically uplink? Even the signal strength is good = 149 149 150 150 151 151 In this case, we can check if the frequency band matches in End Node, Gateway and LoRaWAN server. A typical case is using US915 in ChirpStack server as below: ... ... @@ -179,9 +179,11 @@ 179 179 180 180 ((( 181 181 To solve this, disable the Frame Counter Check will solve this issue , or reset the frame counter in the device page. 182 + 183 +[[image:image-20240123161737-4.png||height="395" width="763"]] 182 182 ))) 183 183 184 -[[image:image-202 20526164508-10.png]]186 +[[image:image-20240123161853-6.png||height="599" width="771"]] 185 185 186 186 Disable Frame Counter Check in ABP Mode 187 187 ... ... @@ -194,7 +194,7 @@ 194 194 LoRaWAN End node will open two receive windows to receive the downstream data. If the downstream packets arrive the end node at these receive windows, the end node will be able to get this packet and process it. 195 195 196 196 ((( 197 -Depends on Class A or Class C, the receive windows will be a little difference ,199 +Depends on Class A or Class C, the receive windows will be a little difference. 198 198 ))) 199 199 200 200 [[image:image-20220531161828-1.png]] ... ... @@ -214,6 +214,9 @@ 214 214 215 215 * This packet must match the DataRate of RX1(RX1DR) or RX2 (RX2DR). (% style="color:red" %)**This is the common fail point, because different lorawan server might use different RX2DR and they don't info End Node via ADR message so cause the mismatch. If this happen, user need to change the RX2DR to the right value in end node. In OTAA, LoRaWAN Server will send the RX2DR setting in Join Accept message so the end node will auto adjust. but ABP uplink doesn't support this auto change.** 216 216 219 +(% class="wikigeneratedid" %) 220 +== == 221 + 217 217 == 5.2 See Debug Info == 218 218 219 219 ... ... @@ -226,10 +226,10 @@ 226 226 ))) 227 227 228 228 ((( 229 -Configure a down streamto the end device234 +Configure a downlink to the end device 230 230 ))) 231 231 232 -[[image:image-202 20526164623-12.png]]237 +[[image:image-20240123163307-7.png||height="330" width="1125"]] 233 233 234 234 ((( 235 235 Set a downstream in TTN and see it is sent