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Author

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1		-XWiki.Edwin
	1	+XWiki.Xiaoling

Content

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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]]
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18	18	= 2. OTAA Join Behaviour =
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21		-Since 005 LoRaWAN stack: to save battery, once boot, device will 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.
	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.
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23	23	(((
24		-Since 005 LoRaWAN Stack:
	25	+For 005 LoRaWAN Stack:
25	25	)))
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27	27	* EU868 OTAA Join DR select. SF7->SF8->SF9->SF10->SF11->SF12; Each 3 attempts and then loop
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28	28	* 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
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	32	+
31	31	= 3. Default Frequency Bands =
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33	33	== 3.1 AS923 ==
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74	74	** 923.2 - SF10BW125 (RX2)
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	79	+
77	77	=== 3.1.3 AS923-2 ===
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102	102	** 916.6 - SF10BW125 (RX2)
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105	105	=== 3.1.5 AS923-4 ===
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116	116	** 917.3 - SF10BW125 (RX2)
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119	119	== 3.2 AU915-928(AU915) ==
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193	193	** 505.3 - SF12BW125 (RX2 downlink only)
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196	196	== 3.4 EU863-870 (EU868) ==
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238	238	* 866.7850 - SF7BW125 to SF12BW125
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241	241	== 3.6 KZ865 ==
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253	253	** The RX2 receive window uses a fixed frequency and data rate. The default parameters are 866.7MHz / DR0 (SF12, 125 kHz)​
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256	256	== 3.7 KR920-923 (KR920) ==
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275	275	** 921.9 - SF12BW125 (RX2 downlink only; SF12BW125 might be changed to SF9BW125)
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278	278	== 3.8 MA869 ==
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296	296	** 869.525 - SF12BW125 (RX2 downlink only)
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299	299	== 3.9 US902-928 (US915) ==
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329	329	** 923.3 - SF12BW500(RX2 downlink only)
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	342	+
332	332	=== 3.9.2 Latest firmware, Since [[Dragino DLS-005 LoRaWAN Stack>>url:https://www.dragino.com/downloads/downloads/LoRa_End_Node/DR-LWS/changelog]] ===
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337	337	)))
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339	339	(((
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	352	+)))
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	354	+(((
340	340	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:
341	341	)))
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357	357	* Loriot [[https:~~/~~/docs.loriot.io/display/LNS/Regional+Frequency+Plans>>url:https://docs.loriot.io/display/LNS/Regional+Frequency+Plans]]
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360		-= 5. Subband Related questiones in US915, AU915, CN470 bands. =
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363		-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?
364		-
365		-
366		-== 5.1 Set Subband in Gateway. ==
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368		-
369		-* 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.
370		-
371		-* 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.
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373		-
374		-== 5.2 Set Subband in End Node ==
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376		-
377		-* 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.
378		-
379		-* 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.
380		-
381		-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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