Issue link: https://read.uberflip.com/i/1540208
Regional Parameters RP002-1.0.5 ©2022-2025 LoRa Alliance ® Page 69 of 116 The authors reserve the right to change specifications without notice. 3.9.4 CN470-510 Join-Accept CFList 1378 The CN470 LoRaWAN supports the use of the OPTIONAL CFList appended to the Join- 1379 Accept message. If the CFList is not empty, the CFListType field SHALL contain the value 1380 one (0x01) to indicate the CFList contains a series of ChMask fields. The ChMask fields are 1381 interpreted as being controlled by a virtual ChMaskCntl that initializes to a value of zero (0) 1382 and increments for each ChMask field to a value of three (3) for 20 MHz plans A or B and two 1383 (2) for 26 MHz plans A or B. (The first 16 bits control channels 0 to 15.) 1384 For 20 MHz antenna systems: 1385 Size (bytes) [2] [2] [2] [2] [2] [2] [3] [1] CFList ChMask0 ChMask1 ChMask2 ChMask3 RFU RFU RFU CFListType 1386 For 26 MHz antenna systems: 1387 Size (bytes) [2] [2] [2] [2] [2] [2] [3] [1] CFList ChMask0 ChMask1 ChMask2 RFU RFU RFU RFU CFListType 3.9.5 CN470-510 LinkADRReq Command 1388 3.9.5.1 Channel Plan for 20 MHz Antenna 1389 For 20 MHz antenna, the ChMaskCntl field of the LinkADRReq command has the following 1390 meaning: 1391 ChMaskCntl ChMask Applies To 0 Channels 0 to 15 1 Channels 16 to 31 2 Channels 32 to 47 3 Channels 48 to 63 4 RFU 5 RFU 6 All channels enabled 7 All channels disabled 16 Table 52: CH470 ChMaskCntl value table for 20M antenna 1392 If the ChMask field value is one of the values indicating RFU, the end-device SHALL reject the 1393 command and unset the Channel mask ACK bit in its response. 1394 1395 16 This command must be followed by another LinkADRReq command enabling at least one channel