Methods, systems, and devices for wireless communications are described. A first user equipment (UE) sense sidelink transmissions to determine a set of resources that may be reserved by one or more other UEs. The set of resources may include a first subset of resources associated with a first radio access technology (RAT) and a second subset of resources associated with a second, different RAT. The first UE may transmit a message to a second UE indicating resource information for transmissions by the second UE, and the resource information may indicate that the first subset of resources is associated with the first RAT and that the second subset of resources is associated with the second RAT. Additionally, or alternatively, the first UE may transmit an indication of collisions between resources reserved for transmissions associated with the first RAT and resources reserved for transmissions associated with the second RAT.