Methods, systems, and devices are described for wireless communications. The described techniques include separation of communication resources into resource sets based on data service sets for multiple base stations operating over a carrier of a shared spectrum. The base stations may use synchronized communication time resources. Each data service set may include one or more QoS types and/or communication services. Listen before talk (LBT) parameters for contention procedures performed in different resource sets may be different. A UE configured for communication over the carrier may employ a resource set based discontinuous reception (DRX) mode where a sleep mode is entered for resource sets not associated with active communications by the UE. Channel state information (CSI) reporting may be separated by resource sets for the carrier.