Changes for page End Device Frequency Band
Last modified by Edwin Chen on 2024/10/21 20:35
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... ... @@ -1,12 +1,11 @@ 1 1 (% class="wikigeneratedid" id="HEndDeviceFrequencyBand" %) 2 - 2 + **Contents：** 3 3 4 - = Contents： =4 +{{toc/}} 5 5 6 - ~[[[hide>>url:https://http://8.211.40.43:8080/xwiki/bin/view/Main/End%20Device%20Frequency%20Band]]] 7 7 8 -{{toc/}} 9 9 8 + 10 10 = 1. Introduction = 11 11 12 12 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. ... ... @@ -14,15 +14,19 @@ 14 14 * TTN Frequency Band Settings: [[https:~~/~~/www.thethingsnetwork.org/docs/lorawan/frequency-plans.html>>url:https://www.thethingsnetwork.org/docs/lorawan/frequency-plans.html]] 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]] 16 16 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 +((( 21 21 For 005 LoRaWAN Stack: 23 +))) 22 22 23 23 * EU868 OTAA Join DR select. SF7->SF8->SF9->SF10->SF11->SF12; Each 3 attempts and then loop 24 24 * 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 25 25 28 + 26 26 = 3. Default Frequency Bands = 27 27 28 28 ... ... @@ -30,12 +30,15 @@ 30 30 31 31 === 3.1.1 Notice for AS923 Frequency Bands === 32 32 36 +((( 33 33 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 +))) 34 34 40 +((( 35 35 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 +))) 36 36 37 37 38 - 39 39 === 3.1.2 AS920-923 & AS923-925 : AS923-1 (AS923) === 40 40 41 41 * Default Uplink channel: ... ... @@ -63,6 +63,7 @@ 63 63 ** Uplink channels 1-8 (RX1) 64 64 ** 923.2 - SF10BW125 (RX2) 65 65 72 + 66 66 === 3.1.3 AS923-2 === 67 67 68 68 * Default Uplink channel: ... ... @@ -75,6 +75,7 @@ 75 75 ** Uplink channels 1-8 (RX1) 76 76 ** 921.4 - SF10BW125 (RX2) 77 77 85 + 78 78 === 3.1.4 AS923-3 === 79 79 80 80 * Default Uplink channel: ... ... @@ -124,15 +124,29 @@ 124 124 ** 927.5 - SF7BW500 to SF12BW500 125 125 ** 923.3 - SF12BW500(RX2 downlink only) 126 126 135 +((( 127 127 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 +))) 128 128 139 + 140 +((( 129 129 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 +))) 130 130 144 + 145 +((( 131 131 After Join success, the end node will switch to the correct sub band by: 147 +))) 132 132 133 -* Check what sub-band the LoRaWAN server ask from the OTAA Join Accept message and switch to that sub-band 134 -* 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) 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) 135 135 155 + 156 +))) 157 + 136 136 == 3.3 CN470-510 (CN470) == 137 137 138 138 Used in China, Default use CHE=1 ... ... @@ -158,6 +158,7 @@ 158 158 ** 508.1 - SF7BW125 to SF12BW125 159 159 ** 505.3 - SF12BW125 (RX2 downlink only) 160 160 183 + 161 161 == 3.4 EU863-870 (EU868) == 162 162 163 163 * Uplink: ... ... @@ -189,6 +189,7 @@ 189 189 ** Uplink channels 1-3 (RX1) 190 190 ** 866.550 - SF10BW125 (RX2) 191 191 215 + 192 192 == 3.6 KZ865 == 193 193 194 194 * Uplink ~-~- 125Khz , DR0 - DR5 ... ... @@ -202,6 +202,7 @@ 202 202 ** The RX1 receive window uses the same channel as the preceding uplink. 203 203 ** The RX2 receive window uses a fixed frequency and data rate. The default parameters are 866.7MHz / DR0 (SF12, 125 kHz) 204 204 229 + 205 205 == 3.7 KR920-923 (KR920) == 206 206 207 207 * Default channel: ... ... @@ -222,8 +222,11 @@ 222 222 ** Uplink channels 1-7(RX1) 223 223 ** 921.9 - SF12BW125 (RX2 downlink only; SF12BW125 might be changed to SF9BW125) 224 224 250 + 225 225 == 3.8 MA869 == 226 226 253 + Country: Morroco 254 + 227 227 * Uplink: 228 228 ** 869.1 - SF7BW125 to SF12BW125 229 229 ** 869.3 - SF7BW125 to SF12BW125 ... ... @@ -239,10 +239,12 @@ 239 239 ** Uplink channels 1-9 (RX1) 240 240 ** 869.525 - SF12BW125 (RX2 downlink only) 241 241 270 + 242 242 == 3.9 US902-928 (US915) == 243 243 244 244 Used in USA, Canada and South America. 245 245 275 + 246 246 === 3.9.1 Before [[Dragino DLS-005 LoRaWAN Stack>>url:https://www.dragino.com/downloads/downloads/LoRa_End_Node/DR-LWS/changelog]]. === 247 247 248 248 Default use CHE=2, Subband 2 ... ... @@ -268,15 +268,30 @@ 268 268 ** 927.5 - SF7BW500 to SF12BW500 269 269 ** 923.3 - SF12BW500(RX2 downlink only) 270 270 301 + 271 271 === 3.9.2 Latest firmware, Since [[Dragino DLS-005 LoRaWAN Stack>>url:https://www.dragino.com/downloads/downloads/LoRa_End_Node/DR-LWS/changelog]] === 272 272 304 +((( 273 273 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 +))) 274 274 308 +((( 309 + 310 +))) 311 + 312 +((( 275 275 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 +))) 276 276 277 -* Check what sub-band the LoRaWAN server ask from the OTAA Join Accept message and switch to that subband 278 -* 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) 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) 279 279 322 + 323 +))) 324 + 280 280 = 4. Frequency Bands for different server = 281 281 282 282 * TTN Frequency Band Settings: [[https:~~/~~/www.thethingsnetwork.org/docs/lorawan/frequency-plans.html>>url:https://www.thethingsnetwork.org/docs/lorawan/frequency-plans.html]]