Sidelink-based device-to-device communication

A UE is configured to: obtain one or more action criteria values and one or more corresponding indications of one or more actions; receive a wireless sidelink signal; determine one or more evaluation characteristic values of one or more evaluation characteristics that include one or more communication characteristics of the wireless sidelink signal; determine a portion of the one or more action criteria values that corresponds to the one or more evaluation characteristic values; and perform the one or more actions corresponding to the portion of the one or more action criteria values, where the one or more actions include providing an indication to the user interface to produce an output, or sending a sidelink response wirelessly via the wireless interface, or a combination thereof.