Inventory procedures in ambient internet of things deployment

EP4771953A1Pending Publication Date: 2026-07-08QUALCOMM INC
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Patent Information

Application Number
EP2023950114
Authority / Receiving Office
EP · EP
Patent Type
Applications
Current Assignee / Owner
Filing Date
2023-08-30
Publication Date
2026-07-08

AI Technical Summary

Technical Problem

Current wireless communication systems lack effective methods for inventorying wireless devices, particularly in ambient Internet of Things (AIoT) deployments, due to limitations in generating orthogonal random access channel preambles and supporting backscatter communications.

Method used

A method and system for improved inventory procedures in AIoT deployments, where a reader device initiates an inventory procedure by transmitting a trigger message, and wireless devices respond with a waveform containing an application layer identifier, followed by a feedback message with a layer one identifier, facilitating subsequent communication.

Benefits of technology

The proposed solution enables efficient identification and communication with wireless devices within a coverage range, supporting both two-step and four-step inventory procedures, thereby addressing the limitations of existing technologies.

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Abstract

Methods, systems, and devices for wireless communications are described. A reader may transmit a trigger message initiating an inventorying procedure for identifying wireless devices within a coverage range of the reader(2005). In response to receiving the trigger message, each wireless device may transmit a waveform including an application layer identifier of the wireless device(2010), which may uniquely identify the wireless device. The source device may transmit a message responsive to the waveform indicating the application layer identifier, and a layer one identifier (2015), where the layer one identifier may be used for subsequent communication between the reader and the wireless device. The inventory procedure may be a two-step procedure, or a four-step procedure.
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