Issue link: https://read.uberflip.com/i/1479525
LoRaWAN® Regional Parameters RP002-1.0.4 ©2022 LoRa Alliance ® Page 94 of 101 The authors reserve the right to change specifications without notice. 4.4 Relay Mechanism [TS011] Regional Parameters 1910 4.4.1 Wake On Radio - Physical Parameters 1911 To send a WOR frame, an end-device SHALL configure the LoRa physical layer as follows: 1912 Parameter Value Preamble size At least 8 symbols Sync Word 0x34 (public) Header type Explicit CRC presence True Coding Rate 4/5 IQ polarization Inverted Table 110: WOR physical layer settings 1913 Data rate and frequency are region dependent. Refer to each region section for more 1914 information. 1915 The output power of the WOR frame SHALL be the default one. 1916 Only LoRa modulation SHALL be used for the WOR protocol exchanges. FSK and LR-FHSS 1917 data rates SHALL NOT be used for the WOR protocol exchanges. 1918 Note: The WOR frame uses inverted chirp polarity to minimize false 1919 wake-ups of the relay by reception of standard LoRaWAN uplink 1920 preambles. 1921 4.4.2 WOR ACK - Physical Parameters 1922 To receive a WOR ACK frame, an end-device SHALL configure the LoRa physical layer as 1923 follows: 1924 Parameter Value Preamble size 8 symbols Sync Word 0x34 (public) Header type Explicit CRC presence True Coding Rate 4/5 IQ polarization Inverted Frequency For default channel: Refer to WOR parameter for each region. For second channel: The Network Server sets the frequency with a MAC command. Data rate Same as the WOR frame. Table 111: WOR ACK physical layer settings 1925 The output power of the WOR ACK frame SHALL be the default one. 1926 4.4.3 End-Device LoRaWAN Uplink – Physical Parameters 1927 The end-device uplink SHALL use the standard LoRaWAN data rate but SHALL NOT use the 1928 LR-FHSS data rate. 1929 1930