A conveyor drive roller for moving a conveyor medium. The module comprises a pair of complementary components of annular structure that are detachably coupled together, face-to-face, by pairs of axial rods with a free end and an open cavity bounded by a cylindrical wall portion around the axial rods. Each group’s communication time band is made different for downlink and uplink communication. The UE further determines if a total scheduled transmission power of the cell groups exceeds a maximum allowed transmission power of the UE. Additionally, the base of the blade body may be affixed to a scraper blade mount having a shape of a \u201cflattened W\u201d defining a groove that has beveled edges to provide clearance for a fillet weld of a scraper blade support bar to which the scraper blade is mountable. IQ trajectories near the origin are limited to a minimum IQ value by determining a specific scaling factor according to a position of the sampled IQ value relative to the origin andor to the minimum IQ value.