Methods, systems, and apparatuses are provided for resource utilization of access procedures in a wireless communication system, wherein a method for a first device comprises receiving a first Reader-to-Device (R2D) message for paging at least the first device, transmitting a first Device-to-Reader (D2R) message based on a first frequency shift, wherein the first D2R message comprises a first Identification (ID) generated by the first device, receiving a second R2D message indicating a set of IDs comprising at least the first ID, and transmitting a second D2R message based on a second frequency shift when the second R2D message indicates information associated with a set of frequency shifts, wherein the second frequency shift is determined, among the set of frequency shifts, based on at least an order of the first ID among the set of IDs.

An inventory system comprises an antenna configured to emit interrogation signals in a first direction toward one or more tags, a reader device configured to receive data from the one or more tags, and a controller. The controller is configured to detect a trigger event occurring within an area including the antenna, cause an adjustment to at least one antenna setting of the antenna or at least one reader device setting of the reader device based on the trigger event and a policy associated with the trigger event, and instruct the antenna or the reader device to emit an interrogation signal in a direction of one or more tags and read data from the one or more tags in accordance with the adjustment to at least one antenna setting or the at least one reader device setting.