Changes for page LoRaWAN Communication Debug
Last modified by Edwin Chen on 2025/01/29 20:30
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... ... @@ -102,11 +102,11 @@ 102 102 103 103 US915 Channels 104 104 105 -[[image:image -20220526163926-7.png]]105 +[[image:https://wiki.dragino.com/images/8/8a/AU915_FRE_BAND-1.png]] 106 106 107 107 AU915 Channels 108 108 109 -[[image:image -20220526163941-8.png]]109 +[[image:https://wiki.dragino.com/images/thumb/3/3a/CN470_FRE_BAND-1.png/600px-CN470_FRE_BAND-1.png||height="205" width="600"]] 110 110 111 111 ((( 112 112 CN470 Channels ... ... @@ -116,7 +116,7 @@ 116 116 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. 117 117 ))) 118 118 119 -[[image:image-20 220526164052-9.png]]119 +[[image:https://wiki.dragino.com/images/thumb/9/9a/US915_FRE_BAND-2.png/600px-US915_FRE_BAND-2.png||height="288" width="600"]] 120 120 121 121 ((( 122 122 TTN FREQUENCY PLAN ... ... @@ -170,7 +170,7 @@ 170 170 To solve this, disable the Frame Counter Check will solve this issue , or reset the frame counter in the device page. 171 171 ))) 172 172 173 -[[image:image- 20220526164508-10.png]]173 +[[~[~[image:https://wiki.dragino.com/images/thumb/1/19/ABP_Issue-1.jpg/600px-ABP_Issue-1.jpg~|~|height="340" width="600"~]~]>>url:https://wiki.dragino.com/index.php/File:ABP_Issue-1.jpg]] 174 174 175 175 Disable Frame Counter Check in ABP Mode 176 176 ... ... @@ -185,7 +185,7 @@ 185 185 Depends on Class A or Class C, the receive windows will be a little difference, 186 186 ))) 187 187 188 -[[image:image- 20220526164547-11.png]]188 +[[image:https://wiki.dragino.com/images/thumb/1/1a/Downstream_LoRaWAN-1.png/600px-Downstream_LoRaWAN-1.png||height="590" width="600"]] 189 189 190 190 receive windows for Class A and Class C 191 191 ... ... @@ -197,7 +197,6 @@ 197 197 * This packet must match the frequency of the RX1 or RX2 window. 198 198 * This packet must match the DataRate of RX1(RX1DR) or RX2 (RX2DR). **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.** 199 199 200 - 201 201 == 5.2 See Debug Info == 202 202 203 203 ((( ... ... @@ -212,7 +212,7 @@ 212 212 Configure a downstream to the end device 213 213 ))) 214 214 215 -[[image:image -20220526164623-12.png]]214 +[[image:https://wiki.dragino.com/images/thumb/8/82/Downstream_debug_1.png/600px-Downstream_debug_1.png||height="217" width="600"]] 216 216 217 217 ((( 218 218 Set a downstream in TTN and see it is sent ... ... @@ -223,7 +223,7 @@ 223 223 This downstream info will then pass to the gateway downstream list. and include the DR which is used (SF9BW125) in EU868 is DR3 224 224 ))) 225 225 226 -[[image:image -20220526164650-13.png]]225 +[[image:https://wiki.dragino.com/images/thumb/d/dc/Downstream_debug_2.png/600px-Downstream_debug_2.png||height="245" width="600"]] 227 227 228 228 ((( 229 229 Gateway Traffic can see this downstream info ... ... @@ -238,7 +238,7 @@ 238 238 When the downstream packet appear on the traffic of Gateway page. The LoRaWAN gateway can get it from LoRaWAN server and transmit it. In Dragion Gateway, this can be checked by runinng "logread -f" in the SSH console. and see below: 239 239 ))) 240 240 241 -[[image:image -20220526164734-14.png]]240 +[[image:https://wiki.dragino.com/images/thumb/2/21/Downstream_debug_3.png/600px-Downstream_debug_3.png||height="195" width="600"]] 242 242 243 243 ((( 244 244 Gateway Sent out this packet ... ... @@ -298,9 +298,6 @@ 298 298 Receive data 299 299 1:0012345678}}} 300 300 301 -(% class="wikigeneratedid" %) 302 - 303 - 304 304 == 5.3 If problem doesn’t solve == 305 305 306 306 **If user has checked below steps and still can't solve the problem, please send us (support @ dragino.com) the sceenshots for each step to check. They include:**
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