Changes for page End Device Frequency Band

Last modified by Edwin Chen on 2024/10/21 20:35
<
From version < 3.6 >
edited by Xiaoling
on 2022/05/10 15:35
To version < 11.3 >
edited by Xiaoling
on 2022/05/31 08:57
>
Change comment: There is no comment for this version

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... ... @@ -1,8 +1,11 @@
1 1  (% class="wikigeneratedid" id="HEndDeviceFrequencyBand" %)
2 -
2 + **Contents：**
3 3  
4 4  {{toc/}}
5 5  
6 +
7 +
8 +
6 6  = 1. Introduction =
7 7  
8 8  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.
... ... @@ -10,6 +10,7 @@
10 10  * TTN Frequency Band Settings: [[https:~~/~~/www.thethingsnetwork.org/docs/lorawan/frequency-plans.html>>url:https://www.thethingsnetwork.org/docs/lorawan/frequency-plans.html]]
11 11  * 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]]
12 12  
16 +
13 13  = 2. OTAA Join Behaviour =
14 14  
15 15  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.
... ... @@ -21,6 +21,7 @@
21 21  * EU868 OTAA Join DR select. SF7->SF8->SF9->SF10->SF11->SF12; Each 3 attempts and then loop
22 22  * 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
23 23  
28 +
24 24  = 3. Default Frequency Bands =
25 25  
26 26  
... ... @@ -37,7 +37,6 @@
37 37  )))
38 38  
39 39  
40 -
41 41  === 3.1.2 AS920-923 & AS923-925 : AS923-1 (AS923) ===
42 42  
43 43  * Default Uplink channel:
... ... @@ -65,6 +65,7 @@
65 65  ** Uplink channels 1-8 (RX1)
66 66  ** 923.2 - SF10BW125 (RX2)
67 67  
72 +
68 68  === 3.1.3 AS923-2 ===
69 69  
70 70  * Default Uplink channel:
... ... @@ -126,15 +126,29 @@
126 126  ** 927.5 - SF7BW500 to SF12BW500
127 127  ** 923.3 - SF12BW500(RX2 downlink only)
128 128  
134 +(((
129 129  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.
136 +)))
130 130  
138 +
139 +(((
131 131  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.
141 +)))
132 132  
143 +
144 +(((
133 133  After Join success, the end node will switch to the correct sub band by:
146 +)))
134 134  
135 -* Check what sub-band the LoRaWAN server ask from the OTAA Join Accept message and switch to that sub-band
136 -* 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)
148 +* (((
149 +Check what sub-band the LoRaWAN server ask from the OTAA Join Accept message and switch to that sub-band
150 +)))
151 +* (((
152 +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)
137 137  
154 +
155 +)))
156 +
138 138  == 3.3 CN470-510 (CN470) ==
139 139  
140 140  Used in China, Default use CHE=1
... ... @@ -160,6 +160,7 @@
160 160  ** 508.1 - SF7BW125 to SF12BW125
161 161  ** 505.3 - SF12BW125 (RX2 downlink only)
162 162  
182 +
163 163  == 3.4 EU863-870 (EU868) ==
164 164  
165 165  * Uplink:
... ... @@ -191,6 +191,7 @@
191 191  ** Uplink channels 1-3 (RX1)
192 192  ** 866.550 - SF10BW125 (RX2)
193 193  
214 +
194 194  == 3.6 KZ865 ==
195 195  
196 196  * Uplink ~-~- 125Khz , DR0 - DR5
... ... @@ -204,6 +204,7 @@
204 204  ** The RX1 receive window uses the same channel as the preceding uplink.
205 205  ** The RX2 receive window uses a fixed frequency and data rate. The default parameters are 866.7MHz / DR0 (SF12, 125 kHz)​
206 206  
228 +
207 207  == 3.7 KR920-923 (KR920) ==
208 208  
209 209  * Default channel:
... ... @@ -224,8 +224,11 @@
224 224  ** Uplink channels 1-7(RX1)
225 225  ** 921.9 - SF12BW125 (RX2 downlink only; SF12BW125 might be changed to SF9BW125)
226 226  
249 +
227 227  == 3.8 MA869 ==
228 228  
252 + Country: Morroco
253 +
229 229  * Uplink:
230 230  ** 869.1 - SF7BW125 to SF12BW125
231 231  ** 869.3 - SF7BW125 to SF12BW125
... ... @@ -241,10 +241,12 @@
241 241  ** Uplink channels 1-9 (RX1)
242 242  ** 869.525 - SF12BW125 (RX2 downlink only)
243 243  
269 +
244 244  == 3.9 US902-928 (US915) ==
245 245  
246 246  Used in USA, Canada and South America.
247 247  
274 +
248 248  === 3.9.1 Before [[Dragino DLS-005 LoRaWAN Stack>>url:https://www.dragino.com/downloads/downloads/LoRa_End_Node/DR-LWS/changelog]]. ===
249 249  
250 250  Default use CHE=2, Subband 2
... ... @@ -270,15 +270,30 @@
270 270  ** 927.5 - SF7BW500 to SF12BW500
271 271  ** 923.3 - SF12BW500(RX2 downlink only)
272 272  
300 +
273 273  === 3.9.2 Latest firmware, Since [[Dragino DLS-005 LoRaWAN Stack>>url:https://www.dragino.com/downloads/downloads/LoRa_End_Node/DR-LWS/changelog]] ===
274 274  
303 +(((
275 275  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.
305 +)))
276 276  
307 +(((
308 +
309 +)))
310 +
311 +(((
277 277  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:
313 +)))
278 278  
279 -* Check what sub-band the LoRaWAN server ask from the OTAA Join Accept message and switch to that subband
280 -* 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)
315 +* (((
316 +Check what sub-band the LoRaWAN server ask from the OTAA Join Accept message and switch to that subband
317 +)))
318 +* (((
319 +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)
281 281  
321 +
322 +)))
323 +
282 282  = 4. Frequency Bands for different server =
283 283  
284 284  * 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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