Issue link: https://read.uberflip.com/i/1507762
Enabling CSMA for LoRaWAN TR013-1.0.0 ©2023 LoRa Alliance ® Page 13 of 18 The authors reserve the right to change specifications without notice. 5 Global Regulatory Compliance 347 5.1 Region with Listen Before Talk 348 Certain regions mandate the use of Listen Before Talk (LBT) explicitly using RSSI prior to 349 transmission. Although [TOSN'22] shows that LBT with RSSI thresholding may impair LoRa 350 orthogonality and will not improve low-power WAN (LPWAN) multiple access efficiency due 351 to low Signal-to-Noise Ratio (SNR) capabilities of LoRa, in the case where LBT is mandated, 352 a decision based on the RSSI value should be made, in accordance with LoRaWAN Regional 353 Parameter documentation [RP002], prior to proceeding with CSMA procedures described in 354 Section 4. LoRaWAN Regional Parameter documentation can be used to identify such 355 regions. Regional regulations are not listed in this section, but the reader is requested to refer 356 to the corresponding specification so that recent regulatory changes are reflected in the most 357 recent version of LoRaWAN regional parameter documentation. In any case, the reader is 358 expected to be up-to-date on all applicable local regulations and should adhere to them. 359 5.2 Regions with Mandatory Equal Channel Utilization 360 Some regions require that an end-device use all enabled channels once before being used 361 again. In the unlikely case where all remaining channels are found to be busy, the end-device 362 may use any unused channel under ALOHA. 363 364