There is disclosed a method of operating a radio node in a wireless communication network. The method includes obtaining delay characteristic information for a set of wireless devices, the delay characteristic information for each of the set of wireless devices pertaining to one or more signaling beams of a set of signaling beams, and communicating with subgroups of wireless devices of the set of wireless devices using signaling beams selected from the set of signaling beams based on the delay characteristic information. For each subgroup, a different selected signaling beam is used for communicating. The disclosure also pertains to related devices and methods.