Changes for page End Device Frequency Band
Last modified by Edwin Chen on 2024/10/21 20:35
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... ... @@ -16,15 +16,16 @@ 16 16 17 17 = 2. OTAA Join Behaviour = 18 18 19 +Since 005 LoRaWAN stack: One device boot or reset, it will 19 19 20 -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. 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. 21 21 22 -((( 23 23 Since 005 LoRaWAN Stack: 24 -))) 25 25 26 -* EU868 OTAA Join DR select. SF7->SF8->SF9->SF10->SF11->SF12; Each 3 attempts and then loop27 -* 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 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 28 29 29 = 3. Default Frequency Bands = 30 30 ... ... @@ -344,6 +344,7 @@ 344 344 * TTN Frequency Band Settings: [[https:~~/~~/www.thethingsnetwork.org/docs/lorawan/frequency-plans.html>>url:https://www.thethingsnetwork.org/docs/lorawan/frequency-plans.html]] 345 345 * Loriot [[https:~~/~~/docs.loriot.io/display/LNS/Regional+Frequency+Plans>>url:https://docs.loriot.io/display/LNS/Regional+Frequency+Plans]] 346 346 348 + 347 347 = 5. Subband Related questiones in US915, AU915, CN470 bands. = 348 348 349 349 ... ... @@ -367,7 +367,14 @@ 367 367 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]]? 368 368 369 369 372 += 6. Data Rate and TXP auto-adjust logic. = 370 370 374 +In below cases the sensor end node will auto-adjust. (ADR must set to 1) 371 371 376 +* Auto-just according to the server ADR request change downlink command. 377 +* If there is no adr_req_ack arrive the sensor end node for more than 64 uplinks, end node will set the output to maximum power (AT+TXP=0). 378 +* If there is no adr_req_ack arrive the sensor end node for more than 96 uplinks, end node will reduce the Data Rate by 1. 372 372 380 + 381 + 373 373