Changes for page End Device Frequency Band
Last modified by Edwin Chen on 2024/10/21 20:35
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... ... @@ -1,11 +1,13 @@ 1 1 (% class="wikigeneratedid" id="HEndDeviceFrequencyBand" %) 2 - **Contents：**2 + 3 3 4 -{{toc/}} 4 +(% class="wikigeneratedid" id="HContents" %) 5 +Contents 5 5 7 + ~[[[hide>>url:https://wiki.dragino.com/index.php/End_Device_Frequency_Band#]]] 6 6 9 +{{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. ... ... @@ -13,15 +13,11 @@ 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 ... ... @@ -33,15 +33,12 @@ 33 33 34 34 === 3.1.1 Notice for AS923 Frequency Bands === 35 35 36 -((( 37 37 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. 38 -))) 39 39 40 -((( 41 41 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. 42 -))) 43 43 44 44 39 + 45 45 === 3.1.2 AS920-923 & AS923-925 : AS923-1 (AS923) === 46 46 47 47 * Default Uplink channel: ... ... @@ -130,29 +130,15 @@ 130 130 ** 927.5 - SF7BW500 to SF12BW500 131 131 ** 923.3 - SF12BW500(RX2 downlink only) 132 132 133 -((( 134 134 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. 135 -))) 136 136 137 - 138 -((( 139 139 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. 140 -))) 141 141 142 - 143 -((( 144 144 After Join success, the end node will switch to the correct sub band by: 145 -))) 146 146 147 -* ((( 148 -Check what sub-band the LoRaWAN server ask from the OTAA Join Accept message and switch to that sub-band 149 -))) 150 -* ((( 151 -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) 134 +* Check what sub-band the LoRaWAN server ask from the OTAA Join Accept message and switch to that sub-band 135 +* 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) 152 152 153 - 154 -))) 155 - 156 156 == 3.3 CN470-510 (CN470) == 157 157 158 158 Used in China, Default use CHE=1 ... ... @@ -244,8 +244,6 @@ 244 244 245 245 == 3.8 MA869 == 246 246 247 - Country: Morroco 248 - 249 249 * Uplink: 250 250 ** 869.1 - SF7BW125 to SF12BW125 251 251 ** 869.3 - SF7BW125 to SF12BW125 ... ... @@ -265,7 +265,6 @@ 265 265 266 266 Used in USA, Canada and South America. 267 267 268 - 269 269 === 3.9.1 Before [[Dragino DLS-005 LoRaWAN Stack>>url:https://www.dragino.com/downloads/downloads/LoRa_End_Node/DR-LWS/changelog]]. === 270 270 271 271 Default use CHE=2, Subband 2 ... ... @@ -293,27 +293,13 @@ 293 293 294 294 === 3.9.2 Latest firmware, Since [[Dragino DLS-005 LoRaWAN Stack>>url:https://www.dragino.com/downloads/downloads/LoRa_End_Node/DR-LWS/changelog]] === 295 295 296 -((( 297 297 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. 298 -))) 299 299 300 -((( 301 - 302 -))) 303 - 304 -((( 305 305 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: 306 -))) 307 307 308 -* ((( 309 -Check what sub-band the LoRaWAN server ask from the OTAA Join Accept message and switch to that subband 310 -))) 311 -* ((( 312 -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) 278 +* Check what sub-band the LoRaWAN server ask from the OTAA Join Accept message and switch to that subband 279 +* 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) 313 313 314 - 315 -))) 316 - 317 317 = 4. Frequency Bands for different server = 318 318 319 319 * TTN Frequency Band Settings: [[https:~~/~~/www.thethingsnetwork.org/docs/lorawan/frequency-plans.html>>url:https://www.thethingsnetwork.org/docs/lorawan/frequency-plans.html]]