Changes for page End Device Frequency Band

Last modified by Edwin Chen on 2024/10/21 20:35
<
From version < 17.1 >
edited by Edwin Chen
on 2024/02/15 00:10
To version < 13.5 >
edited by Xiaoling
on 2022/12/14 09:25
>
Change comment: There is no comment for this version

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Author
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1 -XWiki.Edwin
1 +XWiki.Xiaoling
Content
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14 14  * TTN Frequency Band Settings: [[https:~~/~~/www.thethingsnetwork.org/docs/lorawan/frequency-plans.html>>url:https://www.thethingsnetwork.org/docs/lorawan/frequency-plans.html]]
15 15  * 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]]
16 16  
17 +
18 +
17 17  = 2. OTAA Join Behaviour =
18 18  
19 -Since 005 LoRaWAN stack: One device boot or reset, it will
20 20  
21 -* First make 200 Join Requestes for OTAA Join, the interval of two Join Requests will depends on the DR and the airtime requirement.
22 -* After 200 Join Requestes, if end node still not join successful, to save battery life, it will keep sending join request at the default uplink interval ( 20 minutes) .
23 -* If device reboot, it will do above loop again.
22 +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.
24 24  
25 -Since 005 LoRaWAN Stack:
24 +(((
25 +For 005 LoRaWAN Stack:
26 +)))
26 26  
27 -* **EU868 OTAA Join DR Logic**. SF7->SF8->SF9->SF10->SF11->SF12; Each SF will make 3 attempts and then loop
28 -* **US915 and AU915 OTAA Join procedure**,. End node by default will use all 72 channels (All sub-bands) to join and it will be set to use the proper sub-band after Join success
28 +* EU868 OTAA Join DR select. SF7->SF8->SF9->SF10->SF11->SF12; Each 3 attempts and then loop
29 +* 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
29 29  
31 +
32 +
30 30  = 3. Default Frequency Bands =
31 31  
32 32  == 3.1 AS923 ==
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72 72  ** Uplink channels 1-8 (RX1)
73 73  ** 923.2 - SF10BW125 (RX2)
74 74  
78 +
79 +
75 75  === 3.1.3 AS923-2 ===
76 76  
77 77  
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85 85  ** Uplink channels 1-8 (RX1)
86 86  ** 921.4 - SF10BW125 (RX2)
87 87  
93 +
94 +
88 88  === 3.1.4 AS923-3 ===
89 89  
90 90  
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98 98  ** Uplink channels 1-8 (RX1)
99 99  ** 916.6 - SF10BW125 (RX2)
100 100  
108 +
109 +
101 101  === 3.1.5 AS923-4 ===
102 102  
103 103  
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111 111  ** Uplink channels 1-8 (RX1)
112 112  ** 917.3 - SF10BW125 (RX2)
113 113  
123 +
124 +
114 114  == 3.2 AU915-928(AU915) ==
115 115  
116 116  
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187 187  ** 508.1 - SF7BW125 to SF12BW125
188 188  ** 505.3 - SF12BW125 (RX2 downlink only)
189 189  
201 +
202 +
190 190  == 3.4 EU863-870 (EU868) ==
191 191  
192 192  
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231 231  * 866.5850 - SF7BW125 to SF12BW125
232 232  * 866.7850 - SF7BW125 to SF12BW125
233 233  
247 +
248 +
234 234  == 3.6 KZ865 ==
235 235  
236 236  
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245 245  ** The RX1 receive window uses the same channel as the preceding uplink.
246 246  ** The RX2 receive window uses a fixed frequency and data rate. The default parameters are 866.7MHz / DR0 (SF12, 125 kHz)​
247 247  
263 +
264 +
248 248  == 3.7 KR920-923 (KR920) ==
249 249  
250 250  
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266 266  ** Uplink channels 1-7(RX1)
267 267  ** 921.9 - SF12BW125 (RX2 downlink only; SF12BW125 might be changed to SF9BW125)
268 268  
286 +
287 +
269 269  == 3.8 MA869 ==
270 270  
271 271  
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286 286  ** Uplink channels 1-9 (RX1)
287 287  ** 869.525 - SF12BW125 (RX2 downlink only)
288 288  
308 +
309 +
289 289  == 3.9 US902-928 (US915) ==
290 290  
291 291  
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318 318  ** 927.5 - SF7BW500 to SF12BW500
319 319  ** 923.3 - SF12BW500(RX2 downlink only)
320 320  
342 +
343 +
321 321  === 3.9.2 Latest firmware, Since [[Dragino DLS-005 LoRaWAN Stack>>url:https://www.dragino.com/downloads/downloads/LoRa_End_Node/DR-LWS/changelog]] ===
322 322  
323 323  
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326 326  )))
327 327  
328 328  (((
329 -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, 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:
352 +
330 330  )))
331 331  
355 +(((
356 +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:
357 +)))
358 +
332 332  * (((
333 333  Check what sub-band the LoRaWAN server ask from the OTAA Join Accept message and switch to that subband
334 334  )))
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345 345  * TTN Frequency Band Settings: [[https:~~/~~/www.thethingsnetwork.org/docs/lorawan/frequency-plans.html>>url:https://www.thethingsnetwork.org/docs/lorawan/frequency-plans.html]]
346 346  * Loriot [[https:~~/~~/docs.loriot.io/display/LNS/Regional+Frequency+Plans>>url:https://docs.loriot.io/display/LNS/Regional+Frequency+Plans]]
347 347  
348 -= 5. Subband Related questiones in US915, AU915, CN470 bands. =
349 -
350 -
351 -Frequency band US915, AU915 and CN470 supports totally 72 frequency in 8 sub-bands, Normally Gateway only support 8 channels ( one subband). So how does the gateway and end nodes work in such frequency?
352 -
353 -
354 -== 5.1 Set Subband in Gateway. ==
355 -
356 -
357 -* If Gateway choose (% style="color:blue" %)**Semtech UDP packet**(%%) forwarder to Connect to LoRaWAN server. User need to manually set the match Subband in the gateway web UI.
358 -
359 -* If Gateway choose (% style="color:blue" %)**Basic Station Mode**(%%) to connect to the LoRaWAN server. User can set the subband in the Server side and gateway will the correct subband from server. no need to set this in gateway. AWS-IoT, TTN, ChirpStack all supports Basic Station Connection.
360 -
361 -== 5.2 Set Subband in End Node ==
362 -
363 -
364 -* In early End Node firmware, it is pre-set to subband 2 , user need to manually set to proper subband if they don;t use subband 2.
365 -
366 -* In new end node firmware , it supports all sub-bands, and will swtich to the proper subband after OTAA join. So user can use the end node with all sub-band.
367 -
368 -Reference: [[How it affects the OTAA Join when end node is set to support all subbands>>http://wiki.dragino.com/xwiki/bin/view/Main/LoRaWAN%20Communication%20Debug/#H13.WhyittakeslongertimeforOTAAjoinedinUS9152FCN4702FAU915band3F]]?
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