Last modified by Edwin Chen on 2025/01/29 20:30
<
From version < 61.1 >
edited by Mengting Qiu
on 2024/01/29 15:24
To version < 49.1 >
edited by Mengting Qiu
on 2024/01/23 16:37
>
Change comment: There is no comment for this version

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... ... @@ -4,7 +4,7 @@
4 4  
5 5  
6 6  
7 -= 1. Join process page check =
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.
... ... @@ -26,11 +26,12 @@
26 26  
27 27  * What frequency the device is sending?
28 28  
29 -[[image:image-20240129142147-2.png||height="736" width="964"]]
29 +[[image:image-20220526164956-15.png||height="591" width="1153"]]
30 30  
31 -Console Output from End device to see the transmit frequency.
31 +Console Output from End device to see the transmit frequency
32 32  
33 33  
34 +
34 34  (% style="color:blue" %)**2. Gateway packet traffic in gateway web or ssh. we can check:**
35 35  
36 36  * If the gateway receive the Join request packet from sensor? (If this fail, check if the gateway and sensor works on the match frequency)
... ... @@ -37,11 +37,12 @@
37 37  
38 38  * If the gateway gets the Join Accept message from server and transmit it via LoRa?
39 39  
40 -[[image:image-20240129151608-6.jpeg||height="725" width="1256"]]
41 +[[image:image-20220526163608-2.png]]
41 41  
42 42  Console Output from Gateway to see packets between end node and server.
43 43  
44 44  
46 +
45 45  (% style="color:blue" %)**3. Gateway Live data in LoRaWAN Server**
46 46  
47 47  * Does the gateway real-time data contain information about Join Request? If not, check the internet connection and gateway LoRaWAN server Settings.
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50 50  
51 51  * 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.
52 52  
53 -[[image:image-20240129150821-5.jpeg||height="522" width="1264"]]
55 +[[image:image-20220526163633-3.png]]
54 54  
55 55  The Traffic for the End node in the server, use TTN as example.
56 56  
57 57  
60 +
58 58  (% style="color:blue" %)**4. Data Page in LoRaWAN server**
59 59  
60 60  * 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.
61 61  
62 -[[image:image-20240129142557-3.png||height="488" width="1267"]]
65 +[[image:image-20240123150720-1.png||height="459" width="1182"]]
63 63  
64 64  The data for the end device set in server
65 65  
66 66  
67 -[[image:image-20240129142631-4.png||height="637" width="1256"]]
70 +[[image:image-20240123150943-2.png||height="556" width="1179"]]
68 68  
69 69  Check if OTAA Keys match the keys in device.
70 70  
... ... @@ -73,17 +73,17 @@
73 73  
74 74  
75 75  (((
76 -If user has problem to work with LoRaWAN server in band US915/AU915/CN470, he can check:
79 +If user has problem to work with lorawan server in band US915/AU915/CN470, he can check:
77 77  )))
78 78  
79 79  * (((
80 -What **sub-band** the server support?
83 +What **sub-band** the server support ?
81 81  )))
82 82  * (((
83 -What is the **sub-band** the gateway support?
86 +What is the **sub-band** the gateway support ?
84 84  )))
85 85  * (((
86 -What is the **sub-band** the end node is using?
89 +What is the **sub-band** the end node is using ?
87 87  )))
88 88  
89 89  (((
... ... @@ -95,7 +95,7 @@
95 95  )))
96 96  
97 97  (((
98 -In LoRaWAN protocol, the frequency bands US915, AU915, CN470 each includes at least 72 frequencies. Many gateways support only 8 or 16 frequencies, and server might support 8 frequency only. In this case, the OTAA join time and uplink schedule is long and unpredictable while the end node is hopping in 72 frequencies, because the end node will send data in many frequency that the gateway or server doesn't support.
101 +In LoRaWAN protocol, the frequency bands US915, AU915, CN470 each includes at least 72 frequencies. Many gateways support only 8 or 16 frequencies, and server might support 8 frequency only. In this case, the OTAA join time and uplink schedule is long and unpredictable while the end node is hopping in 72 frequencies, because the end node will send data in many frequency that the gateway or server doesn,t support.
99 99  )))
100 100  
101 101  (((
... ... @@ -103,7 +103,7 @@
103 103  )))
104 104  
105 105  (((
106 -Here are the frequency tables for these bands as reference:
109 +Here are the freuqency tables for these bands as reference:
107 107  )))
108 108  
109 109  [[image:image-20220526163801-6.png]]
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213 213  
214 214  * 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.**
215 215  
219 +(% class="wikigeneratedid" %)
220 +== ==
221 +
216 216  == 5.2 See Debug Info ==
217 217  
218 218  
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226 226  
227 227  (((
228 228  Configure a downlink to the end device
229 -
230 -[[image:image-20240129152412-8.png||height="486" width="1206"]]
231 231  )))
232 232  
233 233  [[image:image-20240123163307-7.png||height="330" width="1125"]]
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238 238  
239 239  
240 240  (((
241 -This downstream info will then pass to the gateway downstream list. and the DR which is used (SF7BW500) in US915 is DR5.
245 +This downstream info will then pass to the gateway downstream list. and include the DR which is used (SF9BW125) in EU868 is DR3
242 242  )))
243 243  
244 -[[image:image-20240129152049-7.png||height="463" width="1166"]]
248 +[[image:image-20220526164650-13.png]]
245 245  
246 246  (((
247 247  Gateway Traffic can see this downstream info
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405 405  )))
406 406  
407 407  
408 -= 8. Why I see uplink 0x00 periodically on the LHT65 v1.8 firmware =
412 += 8. Why i see uplink 0x00 periodcally on the LHT65 v1.8 firmware =
409 409  
410 410  
411 411  Since firmware v1.8, LHT65 will send MAC command to request time, in the case if DR only support max 11 bytes, this MAC command will be bundled to a separate uplink payload with 0x00.
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554 554  = 13. Why it takes longer time for OTAA joined in US915/CN470/AU915 band? =
555 555  
556 556  
557 -In US915, AU915 or CN470 frequency band, there are 8 sub-bands, totally 72 channels. and LoRaWAN server normally use only one sub-band, for example Sub-band 2 in TTN. The gateway also configured to Sub-band 2 and cover eight channels in this sub-band. If the end node transfer data in Sub-band 2, it will reach to gateway and to the LoRaWAN server. If the end node transfer packets in other sub-bands, for example sub-band 1, the packet won't arrive both gateway or LoRaWAN server.
561 +In US915, AU915 or CN470 frequency band, there are 8 subbands, totally 72 channels. and LoRaWAN server normally use only one sub-band, for example Subband 2 in TTN. The gateway also configured to Subband 2 and cover eight channels in this subband. If the end node transfer data in Subband 2, it will reach to gateway and to the LoRaWAN server. If the end node transfer packets in other subbands, for example subband 1, the packet won't arrive both gateway or LoRaWAN server.
558 558  
559 559  
560 -In Dragino Sensors old version firmware (before early 2022), the sub-band is fixed the sub-band to 2 , but this cause a problem, the end node is hard to use in other subband and need program. So the new logic is as below:
564 +In Dragino Sensors old version firmware (before early 2022), the subband is fixed the subband to 2 , but this cause a problem, the end node is hard to use in other subband and need program. So the new logic is as below:
561 561  
562 -We have improved this, the end node will use frequency 1 from sub-band1, then frequency 1 from sub-band2, then frequency 1 from sub-band3, etc to process the OTAA join, in this case, in this case, the end node can support LoRaWAN servers with different sub-bands. To make sure the end node will only transmit the proper sub-band after OTAA Joined successfully, the end node will:
566 +We have improved this, the end node will use frequency 1 from sub-band1, then frequency 1 from sub-band2, then frequency 1 from sub-band3, etc to process the OTAA join, In this case, In this case, the end node can support LoRaWAN servers with different subbands. To make sure the end node will only transmit the proper sub-band after OTAA Joined successfully, the end node will:
563 563  
564 564  * (((
565 -Check what sub-band the LoRaWAN server ask from the OTAA Join Accept message and switch to that sub-band.
569 +Check what sub-band the LoRaWAN server ask from the OTAA Join Accept message and switch to that subband
566 566  )))
567 567  * (((
568 -Use the Join successful sub-band if the server doesn't include sub-band info in the OTAA Join Accept message (TTN v2 doesn't include).
572 +Use the Join successful sub-band if the server doesn't include subband info in the OTAA Join Accept message ( TTN v2 doesn't include)
569 569  )))
570 570  
571 -This change will make the activation time a little longer but make sure the device can be used in any sub-band.
575 +This change will make the activation time a littler longer but make sure the device can be used in any subband.
572 572  
573 573  
574 -Below is a photo to show why it takes longer time for OTAA Join. We can see in 72 channels mode, why it takes more time to join success. If users want to have faster OTAA Join success, he can change default CHE to the sub-band he uses.
578 +Below is a photo to show why it takes longer time for OTAA Join. We can see in 72 channels mode, why it takes more time to join success. If users want to have faster OTAA Join success, he can change default CHE to the subband he use.
575 575  
576 576  
577 577  [[image:image-20221215223215-1.png||height="584" width="1280"]]
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