Embodiments include a method for assigning, to a user equipment (UE) in a wireless communication network, frequency-domain resources of a communication channel shared with one or more further UEs. Such embodiments include sending, to the UE, an indication of an active carrier bandwidth part (BWP) usable for communicating via the shared channel. Such embodiments include selecting one or more frequency-domain resource blocks (RBs), within the active BWP, to be assigned to the UE. Such embodiments include encoding an indication of the one or more selected RBs using a plurality of available bits, wherein the plurality of available bits is insufficient to encode all assignable combinations of RBs within the active BWP. Such embodiments include sending the encoded indication to the UE via a downlink control channel. Embodiments also include complementary methods performed by a UE, as well as network nodes and UEs configured and/or arranged to perform various methods.