TR007 Developing LoRaWAN® Devices
© 2021 LoRa Alliance® Page 24 of 26
The authors reserve the right to change
specifications without notice.
For end-devices operating in areas where beacons (or beacons with gateway specific fields 760
identifying the gateway) are not available, cell change detection is not possible. If the end- 761
device includes an accelerometer, GPS/GNSS or other means to detect that it has moved to 762
a new location, the end-device MAY elect to transmit an uplink frame to inform the network 763
of a possible cell change. The end-device SHOULD send such a frame only if it detects that 764
a sufficiently large change in location may have occurred. 765
All end-devices operating in Class B or Class C mode SHOULD send periodic uplink 766
messages to keep the network informed of its cell location. The periodicity of these 767
messages MAY be very low if the above event triggered messages are also implemented. 768
