Changes for page End Device Frequency Band

Last modified by Edwin Chen on 2024/10/21 20:35
<
From version < 11.1 >
edited by Xiaoling
on 2022/05/30 10:40
To version < 3.2 >
edited by Xiaoling
on 2022/05/10 14:23
>
Change comment: There is no comment for this version

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1 1  (% class="wikigeneratedid" id="HEndDeviceFrequencyBand" %)
2 - **Contents：**
2 +
3 3  
4 -{{toc/}}
4 += Contents： =
5 5  
6 + ~[[[hide>>url:https://wiki.dragino.com/index.php/End_Device_Frequency_Band#]]]
6 6  
8 +{{toc/}}
7 7  
8 -
9 9  = 1. Introduction =
10 10  
11 11  This page list the default frequency band for Dragino End Devices. The frequency bands are base on TTN Frequency Bands. User can modify upgrade firmware to support different frequency band or use AT Command to change the sub band in some frequency bands.
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13 13  * TTN Frequency Band Settings: [[https:~~/~~/www.thethingsnetwork.org/docs/lorawan/frequency-plans.html>>url:https://www.thethingsnetwork.org/docs/lorawan/frequency-plans.html]]
14 14  * Frequency Bands vs Country List : Page 11 of [[LoRaWAN Regional Parameters RP2-1.0.3>>url:https://resources.lora-alliance.org/technical-specifications/rp2-1-0-3-lorawan-regional-parameters]]
15 15  
16 -
17 17  = 2. OTAA Join Behaviour =
18 18  
19 19  For 005 LoRaWAN stack: to save battery, once boot, device will make first make 200 tries for OTAA Join, the time period of two Join Requests will depends on the DR and the airtime requirement. After this 200 Join finish, device will send a join request every 20 minutes. If device reboot, it will do above loop again.
20 20  
21 -(((
22 22  For 005 LoRaWAN Stack:
23 -)))
24 24  
25 25  * EU868 OTAA Join DR select. SF7->SF8->SF9->SF10->SF11->SF12; Each 3 attempts and then loop
26 26  * US915 and AU915 OTAA Join procedure,. End node by default will use all 72 channels to join and it will be set to use the proper sub-band after Join success
27 27  
28 -
29 29  = 3. Default Frequency Bands =
30 30  
31 31  
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33 33  
34 34  === 3.1.1 Notice for AS923 Frequency Bands ===
35 35  
36 -(((
37 37  Since [[RP002-1.0.1LoRaWAN Regional Parameters>>url:https://lora-alliance.org/sites/default/files/2020-02/rp_2-1.0.1.pdf]], AS923 include three different default settings for different countries: AS923-1, AS923-2 and AS923-3.
38 -)))
39 39  
40 -(((
41 41  AS923-1 use the same default uplink frequency as previous AS923 firmware. AS923-2 and AS923-3 are new with different default uplink frequency. User need to know exactly the frequency bands from the LoRaWAN server and choose the right firmware version for the end node.
42 -)))
43 43  
44 44  
38 +
45 45  === 3.1.2 AS920-923 & AS923-925 : AS923-1 (AS923) ===
46 46  
47 47  * Default Uplink channel:
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69 69  ** Uplink channels 1-8 (RX1)
70 70  ** 923.2 - SF10BW125 (RX2)
71 71  
72 -
73 -
74 74  === 3.1.3 AS923-2 ===
75 75  
76 76  * Default Uplink channel:
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83 83  ** Uplink channels 1-8 (RX1)
84 84  ** 921.4 - SF10BW125 (RX2)
85 85  
86 -
87 -
88 88  === 3.1.4 AS923-3 ===
89 89  
90 90  * Default Uplink channel:
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97 97  ** Uplink channels 1-8 (RX1)
98 98  ** 916.6 - SF10BW125 (RX2)
99 99  
100 -
101 -
102 102  === 3.1.5 AS923-4 ===
103 103  
104 104  * Countries : Israel
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111 111  ** Uplink channels 1-8 (RX1)
112 112  ** 917.3 - SF10BW125 (RX2)
113 113  
114 -
115 -
116 116  == 3.2 AU915-928(AU915) ==
117 117  
118 118  **Before [[Dragino DLS-005 LoRaWAN Stack>>url:https://www.dragino.com/downloads/downloads/LoRa_End_Node/DR-LWS/changelog]]** , Default use CHE=2
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138 138  ** 927.5 - SF7BW500 to SF12BW500
139 139  ** 923.3 - SF12BW500(RX2 downlink only)
140 140  
141 -(((
142 142  There is a issue if the end node is fixed at sub-band2. The sensor won't be able to register to other sub-band and can only works for the LoRaWAN server use sub-band2 , such as TTN. To solve this, user need to use a USB-TTL adapter to connect to the end node to manually set the sub-band which is very inconvinient.
143 -)))
144 144  
145 -
146 -(((
147 147  So since **Since [[Dragino DLS-005 LoRaWAN Stack>>url:https://www.dragino.com/downloads/downloads/LoRa_End_Node/DR-LWS/changelog]]**, To make sure the end node supports all sub band by default. In the OTAA Join process, 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.
148 -)))
149 149  
150 -
151 -(((
152 152  After Join success, the end node will switch to the correct sub band by:
153 -)))
154 154  
155 -* (((
156 -Check what sub-band the LoRaWAN server ask from the OTAA Join Accept message and switch to that sub-band
157 -)))
158 -* (((
159 -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)
133 +* Check what sub-band the LoRaWAN server ask from the OTAA Join Accept message and switch to that sub-band
134 +* 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)
160 160  
161 -
162 -)))
163 -
164 164  == 3.3 CN470-510 (CN470) ==
165 165  
166 166  Used in China, Default use CHE=1
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252 252  
253 253  == 3.8 MA869 ==
254 254  
255 - Country: Morroco
256 -
257 257  * Uplink:
258 258  ** 869.1 - SF7BW125 to SF12BW125
259 259  ** 869.3 - SF7BW125 to SF12BW125
... ... @@ -273,7 +273,6 @@
273 273  
274 274  Used in USA, Canada and South America.
275 275  
276 -
277 277  === 3.9.1 Before [[Dragino DLS-005 LoRaWAN Stack>>url:https://www.dragino.com/downloads/downloads/LoRa_End_Node/DR-LWS/changelog]]. ===
278 278  
279 279  Default use CHE=2, Subband 2
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301 301  
302 302  === 3.9.2 Latest firmware, Since [[Dragino DLS-005 LoRaWAN Stack>>url:https://www.dragino.com/downloads/downloads/LoRa_End_Node/DR-LWS/changelog]] ===
303 303  
304 -(((
305 305  There is an issue if the end node is fixed at sub-band2. The sensor won't be able to register to other sub-band and can only work for the LoRaWAN server use sub-band2 , such as TTN. To solve this, the user needs to use a USB-TTL adapter to connect to the end node to manually set the sub-band which is very inconvenient.
306 -)))
307 307  
308 -(((
309 -
310 -)))
311 -
312 -(((
313 313  So since **Since [[Dragino DLS-005 LoRaWAN Stack>>url:https://www.dragino.com/downloads/downloads/LoRa_End_Node/DR-LWS/changelog]]**, 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:
314 -)))
315 315  
316 -* (((
317 -Check what sub-band the LoRaWAN server ask from the OTAA Join Accept message and switch to that subband
318 -)))
319 -* (((
320 -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)
277 +* Check what sub-band the LoRaWAN server ask from the OTAA Join Accept message and switch to that subband
278 +* 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)
321 321  
322 -
323 -)))
324 -
325 325  = 4. Frequency Bands for different server =
326 326  
327 327  * TTN Frequency Band Settings: [[https:~~/~~/www.thethingsnetwork.org/docs/lorawan/frequency-plans.html>>url:https://www.thethingsnetwork.org/docs/lorawan/frequency-plans.html]]

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