Changes for page End Device Frequency Band

Last modified by Edwin Chen on 2024/10/21 20:35
<
From version < 11.10 >
edited by Xiaoling
on 2022/06/01 11:47
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 -
18 18  = 2. OTAA Join Behaviour =
19 19  
20 20  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 21  
22 -(((
23 23  For 005 LoRaWAN Stack:
24 -)))
25 25  
26 26  * EU868 OTAA Join DR select. SF7->SF8->SF9->SF10->SF11->SF12; Each 3 attempts and then loop
27 27  * 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
28 28  
29 -
30 -
31 31  = 3. Default Frequency Bands =
32 32  
33 33  
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35 35  
36 36  === 3.1.1 Notice for AS923 Frequency Bands ===
37 37  
38 -(((
39 39  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.
40 -)))
41 41  
42 -(((
43 43  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.
44 -)))
45 45  
46 46  
38 +
47 47  === 3.1.2 AS920-923 & AS923-925 : AS923-1 (AS923) ===
48 48  
49 49  * Default Uplink channel:
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71 71  ** Uplink channels 1-8 (RX1)
72 72  ** 923.2 - SF10BW125 (RX2)
73 73  
74 -
75 -
76 76  === 3.1.3 AS923-2 ===
77 77  
78 78  * Default Uplink channel:
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85 85  ** Uplink channels 1-8 (RX1)
86 86  ** 921.4 - SF10BW125 (RX2)
87 87  
88 -
89 -
90 90  === 3.1.4 AS923-3 ===
91 91  
92 92  * Default Uplink channel:
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99 99  ** Uplink channels 1-8 (RX1)
100 100  ** 916.6 - SF10BW125 (RX2)
101 101  
102 -
103 -
104 104  === 3.1.5 AS923-4 ===
105 105  
106 106  * Countries : Israel
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113 113  ** Uplink channels 1-8 (RX1)
114 114  ** 917.3 - SF10BW125 (RX2)
115 115  
116 -
117 -
118 118  == 3.2 AU915-928(AU915) ==
119 119  
120 120  **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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140 140  ** 927.5 - SF7BW500 to SF12BW500
141 141  ** 923.3 - SF12BW500(RX2 downlink only)
142 142  
143 -(((
144 144  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.
145 -)))
146 146  
147 -
148 -(((
149 149  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.
150 -)))
151 151  
152 -
153 -(((
154 154  After Join success, the end node will switch to the correct sub band by:
155 -)))
156 156  
157 -* (((
158 -Check what sub-band the LoRaWAN server ask from the OTAA Join Accept message and switch to that sub-band
159 -)))
160 -* (((
161 -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)
162 162  
163 -
164 -)))
165 -
166 166  == 3.3 CN470-510 (CN470) ==
167 167  
168 168  Used in China, Default use CHE=1
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254 254  
255 255  == 3.8 MA869 ==
256 256  
257 - Country: Morroco
258 -
259 259  * Uplink:
260 260  ** 869.1 - SF7BW125 to SF12BW125
261 261  ** 869.3 - SF7BW125 to SF12BW125
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275 275  
276 276  Used in USA, Canada and South America.
277 277  
278 -
279 279  === 3.9.1 Before [[Dragino DLS-005 LoRaWAN Stack>>url:https://www.dragino.com/downloads/downloads/LoRa_End_Node/DR-LWS/changelog]]. ===
280 280  
281 281  Default use CHE=2, Subband 2
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303 303  
304 304  === 3.9.2 Latest firmware, Since [[Dragino DLS-005 LoRaWAN Stack>>url:https://www.dragino.com/downloads/downloads/LoRa_End_Node/DR-LWS/changelog]] ===
305 305  
306 -(((
307 307  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.
308 -)))
309 309  
310 -(((
311 -
312 -)))
313 -
314 -(((
315 315  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:
316 -)))
317 317  
318 -* (((
319 -Check what sub-band the LoRaWAN server ask from the OTAA Join Accept message and switch to that subband
320 -)))
321 -* (((
322 -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)
323 323  
324 -
325 -)))
326 -
327 327  = 4. Frequency Bands for different server =
328 328  
329 329  * 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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