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. ... ... @@ -13,21 +13,15 @@ 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 ... ... @@ -35,15 +35,12 @@ 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 39 + 47 47 === 3.1.2 AS920-923 & AS923-925 : AS923-1 (AS923) === 48 48 49 49 * Default Uplink channel: ... ... @@ -71,8 +71,6 @@ 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: ... ... @@ -134,29 +134,15 @@ 134 134 ** 927.5 - SF7BW500 to SF12BW500 135 135 ** 923.3 - SF12BW500(RX2 downlink only) 136 136 137 -((( 138 138 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. 139 -))) 140 140 141 - 142 -((( 143 143 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. 144 -))) 145 145 146 - 147 -((( 148 148 After Join success, the end node will switch to the correct sub band by: 149 -))) 150 150 151 -* ((( 152 -Check what sub-band the LoRaWAN server ask from the OTAA Join Accept message and switch to that sub-band 153 -))) 154 -* ((( 155 -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) 156 156 157 - 158 -))) 159 - 160 160 == 3.3 CN470-510 (CN470) == 161 161 162 162 Used in China, Default use CHE=1 ... ... @@ -248,8 +248,6 @@ 248 248 249 249 == 3.8 MA869 == 250 250 251 - Country: Morroco 252 - 253 253 * Uplink: 254 254 ** 869.1 - SF7BW125 to SF12BW125 255 255 ** 869.3 - SF7BW125 to SF12BW125 ... ... @@ -269,7 +269,6 @@ 269 269 270 270 Used in USA, Canada and South America. 271 271 272 - 273 273 === 3.9.1 Before [[Dragino DLS-005 LoRaWAN Stack>>url:https://www.dragino.com/downloads/downloads/LoRa_End_Node/DR-LWS/changelog]]. === 274 274 275 275 Default use CHE=2, Subband 2 ... ... @@ -297,27 +297,13 @@ 297 297 298 298 === 3.9.2 Latest firmware, Since [[Dragino DLS-005 LoRaWAN Stack>>url:https://www.dragino.com/downloads/downloads/LoRa_End_Node/DR-LWS/changelog]] === 299 299 300 -((( 301 301 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. 302 -))) 303 303 304 -((( 305 - 306 -))) 307 - 308 -((( 309 309 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: 310 -))) 311 311 312 -* ((( 313 -Check what sub-band the LoRaWAN server ask from the OTAA Join Accept message and switch to that subband 314 -))) 315 -* ((( 316 -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) 317 317 318 - 319 -))) 320 - 321 321 = 4. Frequency Bands for different server = 322 322 323 323 * TTN Frequency Band Settings: [[https:~~/~~/www.thethingsnetwork.org/docs/lorawan/frequency-plans.html>>url:https://www.thethingsnetwork.org/docs/lorawan/frequency-plans.html]]