As shown by reference number 535, the base station 510 may determine one or more slice configurations for one or more resource slices of the sidelink channel based at least in part on the indication of the slice identifier received from the Tx UE 505 and/or other indications of slice identifiers received from other UEs. A slice configuration may include, for example, a resource allocation for a slice, a time period (e.g., a duration, a length of time, and/or the like) for which the resource allocation is to be used for the slice, a size of the slice (e.g., a number of resources in the resource allocation), and/or the like. In some aspects, the base station 510 may determine the resource allocation based at least in part on a data structure that maps different resource allocations to corresponding slice identifiers, as described above. Additionally, or alternatively, the base station 510 may determine the resource allocation based at least in part on information (e.g., slice occupancy announcements, slice identifiers, and/or the like) received from a plurality of UEs 120 within a coverage area of the base station 510.