Aspects relate to an allocation of periodic resources where use of the periodic resources is conditional. In some examples, a user equipment (UE) receives a periodic resource allocation along with an indication of a condition for using the periodic resources. For example, the UE may be allowed to transmit on at least one first resource of the periodic resources if the condition is true. Similarly, a base station (BS) may monitor for a transmission by the UE on the at least one first resource if the condition is true.