The standard define eight user priorities for Frames. As the priority defined in the standard are related to frames not to the sensor.

1.      Who is the responsible for defining the priorities?

2.      Can a node generate data with more than user priority: For example: in each superframe a frame with UP =7 and a frame with UP =5 ?

3.      If we define a data with UP=5 (for example), it remains with the same UP for the next superframes ?