Wiki source code of Listen Before Talk Feature
Version 17.1 by Kilight Cao on 2022/07/22 11:08
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| 1 | **Contents:** | ||
| 2 | |||
| 3 | {{toc/}} | ||
| 4 | |||
| 5 | |||
| 6 | = **1. Introduction** = | ||
| 7 | |||
| 8 | Dragino Gateway is possible to support (LBT) Listen Before Talk feature with [[LA66 USB LoRaWAN Adapter>>doc:Main.User Manual for LoRaWAN End Nodes.LA66 LoRaWAN Module.WebHome]]. | ||
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| 11 | = **2. How to use** = | ||
| 12 | |||
| 13 | == **2.1 Upgrade File** == | ||
| 14 | |||
| 15 | Upgrade the firmware to the LBT version for specific device [[Firmware download>>https://www.dragino.com/downloads/index.php?dir=LoRa_Gateway/LPS8/Firmware/Release/LBT--build-v5.4.1658454438-20220722-0948/]], [[Firmware Changelog>>url:http://www.dragino.com/downloads/downloads/LoRa_Gateway/LG308-LG301/Firmware/ChangeLog]]. This LBT version firmware support LBT by default, users just need to plug in the LA66 USB LoRaWAN Adapter. | ||
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| 18 | [[image:image-20220722105144-1.jpeg||height="419" width="559"]] | ||
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| 20 | == **2.2 Debug** == | ||
| 21 | |||
| 22 | Apply and save on the web after the above configure has been made | ||
| 23 | |||
| 24 | ((( | ||
| 25 | run "(% style="color:#037691" %)**logread -f**"(%%) in Linux to check the LBT running status. | ||
| 26 | |||
| 27 | If LA66 module returned the value "(% style="color:#037691" %)**FREE"**(%%), indicating that can be downlinked normally. | ||
| 28 | |||
| 29 | If LA66 module returned the value "(% style="color:#037691" %)**BUSY"**(%%), indicates that the downlink can be disturbed. | ||
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| 31 | [[image:image-20220705110001-5.png||height="681" width="1375"]] | ||
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| 33 | |||
| 34 | == **2.3 Trouble Shootings** == | ||
| 35 | |||
| 36 | |||
| 37 | === **How to debug if LBT does not work** === | ||
| 38 | |||
| 39 | Make sure that the gateway is connected to the LA66 module, Can check by command or via the Web UI. | ||
| 40 | |||
| 41 | [[image:image-20220705104342-4.png||height="760" width="1005"]] | ||
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| 43 | [[image:image-20220705104316-3.png||height="574" width="1005"]] | ||
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| 45 | |||
| 46 | Access LA66 module log will show CP210X Converter Now Attached to **ttyUSBX** | ||
| 47 | |||
| 48 | [[image:image-20220705111448-6.png||height="249" width="1003"]] | ||
| 49 | ))) |