Methods, systems, and devices for wireless communication are described. A wireless device may receive an indicator of resource allocation for a plurality of UEs, determine, based at least on a grouping of the plurality of UEs, resources from the resource allocation for receiving data at the UE, and receive the data on the determined resources. A base station may receive a plurality of acknowledgement reports from a plurality of UEs, determine, based on a grouping of the plurality of UEs, a resource allocation for each UE from which a negative acknowledgement was received, and transmit an indicator of the resource allocation.