Changes for page End Device Frequency Band
Last modified by Edwin Chen on 2024/10/21 20:35
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... ... @@ -1,11 +1,8 @@ 1 1 (% class="wikigeneratedid" id="HEndDeviceFrequencyBand" %) 2 - **Contents：**2 + 3 3 4 4 {{toc/}} 5 5 6 - 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. ... ... @@ -13,19 +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 17 = 2. OTAA Join Behaviour = 18 18 19 19 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. 20 20 21 -((( 22 22 For 005 LoRaWAN Stack: 23 -))) 24 24 25 25 * EU868 OTAA Join DR select. SF7->SF8->SF9->SF10->SF11->SF12; Each 3 attempts and then loop 26 26 * 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 27 27 28 - 29 29 = 3. Default Frequency Bands = 30 30 31 31 ... ... @@ -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 34 + 45 45 === 3.1.2 AS920-923 & AS923-925 : AS923-1 (AS923) === 46 46 47 47 * Default Uplink channel: ... ... @@ -69,7 +69,6 @@ 69 69 ** Uplink channels 1-8 (RX1) 70 70 ** 923.2 - SF10BW125 (RX2) 71 71 72 - 73 73 === 3.1.3 AS923-2 === 74 74 75 75 * Default Uplink channel: ... ... @@ -82,7 +82,6 @@ 82 82 ** Uplink channels 1-8 (RX1) 83 83 ** 921.4 - SF10BW125 (RX2) 84 84 85 - 86 86 === 3.1.4 AS923-3 === 87 87 88 88 * Default Uplink channel: ... ... @@ -132,29 +132,15 @@ 132 132 ** 927.5 - SF7BW500 to SF12BW500 133 133 ** 923.3 - SF12BW500(RX2 downlink only) 134 134 135 -((( 136 136 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. 137 -))) 138 138 139 - 140 -((( 141 141 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. 142 -))) 143 143 144 - 145 -((( 146 146 After Join success, the end node will switch to the correct sub band by: 147 -))) 148 148 149 -* ((( 150 -Check what sub-band the LoRaWAN server ask from the OTAA Join Accept message and switch to that sub-band 151 -))) 152 -* ((( 153 -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) 129 +* Check what sub-band the LoRaWAN server ask from the OTAA Join Accept message and switch to that sub-band 130 +* 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) 154 154 155 - 156 -))) 157 - 158 158 == 3.3 CN470-510 (CN470) == 159 159 160 160 Used in China, Default use CHE=1 ... ... @@ -180,7 +180,6 @@ 180 180 ** 508.1 - SF7BW125 to SF12BW125 181 181 ** 505.3 - SF12BW125 (RX2 downlink only) 182 182 183 - 184 184 == 3.4 EU863-870 (EU868) == 185 185 186 186 * Uplink: ... ... @@ -212,7 +212,6 @@ 212 212 ** Uplink channels 1-3 (RX1) 213 213 ** 866.550 - SF10BW125 (RX2) 214 214 215 - 216 216 == 3.6 KZ865 == 217 217 218 218 * Uplink ~-~- 125Khz , DR0 - DR5 ... ... @@ -226,7 +226,6 @@ 226 226 ** The RX1 receive window uses the same channel as the preceding uplink. 227 227 ** The RX2 receive window uses a fixed frequency and data rate. The default parameters are 866.7MHz / DR0 (SF12, 125 kHz) 228 228 229 - 230 230 == 3.7 KR920-923 (KR920) == 231 231 232 232 * Default channel: ... ... @@ -247,11 +247,8 @@ 247 247 ** Uplink channels 1-7(RX1) 248 248 ** 921.9 - SF12BW125 (RX2 downlink only; SF12BW125 might be changed to SF9BW125) 249 249 250 - 251 251 == 3.8 MA869 == 252 252 253 - Country: Morroco 254 - 255 255 * Uplink: 256 256 ** 869.1 - SF7BW125 to SF12BW125 257 257 ** 869.3 - SF7BW125 to SF12BW125 ... ... @@ -267,12 +267,10 @@ 267 267 ** Uplink channels 1-9 (RX1) 268 268 ** 869.525 - SF12BW125 (RX2 downlink only) 269 269 270 - 271 271 == 3.9 US902-928 (US915) == 272 272 273 273 Used in USA, Canada and South America. 274 274 275 - 276 276 === 3.9.1 Before [[Dragino DLS-005 LoRaWAN Stack>>url:https://www.dragino.com/downloads/downloads/LoRa_End_Node/DR-LWS/changelog]]. === 277 277 278 278 Default use CHE=2, Subband 2 ... ... @@ -298,30 +298,15 @@ 298 298 ** 927.5 - SF7BW500 to SF12BW500 299 299 ** 923.3 - SF12BW500(RX2 downlink only) 300 300 301 - 302 302 === 3.9.2 Latest firmware, Since [[Dragino DLS-005 LoRaWAN Stack>>url:https://www.dragino.com/downloads/downloads/LoRa_End_Node/DR-LWS/changelog]] === 303 303 304 -((( 305 305 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. 306 -))) 307 307 308 -((( 309 - 310 -))) 311 - 312 -((( 313 313 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: 314 -))) 315 315 316 -* ((( 317 -Check what sub-band the LoRaWAN server ask from the OTAA Join Accept message and switch to that subband 318 -))) 319 -* ((( 320 -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) 273 +* Check what sub-band the LoRaWAN server ask from the OTAA Join Accept message and switch to that subband 274 +* 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) 321 321 322 - 323 -))) 324 - 325 325 = 4. Frequency Bands for different server = 326 326 327 327 * TTN Frequency Band Settings: [[https:~~/~~/www.thethingsnetwork.org/docs/lorawan/frequency-plans.html>>url:https://www.thethingsnetwork.org/docs/lorawan/frequency-plans.html]]