AIoT Temporary Identity Management for Low-Power Device Paging
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Solution Overview
Problem
AIoT devices face challenges with limited storage and processing capabilities, leading to issues with temporary ID management due to power limitations, which affects communication efficiency and reliability.
Innovation Solution
Implementing a mechanism where a UE assigns a temporary AS layer ID to AIoT devices based on the type of operation triggered, such as inventory or command operations, to enhance resource efficiency and address power constraints.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If a temporary ID assignment mechanism is implemented in AIoT devices, then communication efficiency is improved, but device complexity increases beyond the capabilities of simple AIoT devices
Solution Approach 1:
The patent introduces a reader as an intermediary entity that performs the temporary ID assignment function on behalf of the AIoT device. The reader receives the permanent ID from the AIoT device, generates the temporary ID, and manages the mapping between permanent and temporary IDs. This transfers the complexity from the constrained AIoT device to the more capable reader, allowing simple devices to benefit from efficient temporary ID-based communication without needing to implement complex ID management themselves.
2Use of energy by moving object
If power consumption is reduced to enable battery-less operation, then energy efficiency is improved, but the device loses storage capability when not energized
Solution Approach 1:
The patent extracts the temporary ID storage function from the AIoT device itself and relocates it to the reader. The AIoT device only needs to store its permanent ID, which it can retain without power. When the device is energized, it communicates its permanent ID to the reader, which then provides the temporary ID for active communication. This separation allows the device to maintain ultra-low power consumption while the reader handles the temporary ID storage and management.
3Reliability
If a longer permanent device ID is used for identification, then device uniqueness is improved, but resource efficiency deteriorates due to increased communication overhead
Solution Approach 1:
The patent segments the identification function into two parts: a permanent ID that the AIoT device stores for uniqueness identification, and a temporary ID that the reader generates and manages for efficient communication. The permanent ID ensures device uniqueness, while the temporary ID (which can be shorter and reused) optimizes communication resource efficiency. This segmentation allows both long-term identification reliability and short-term communication efficiency to coexist.
Data Source
AI summary
A WTRU may receive an AIoT inventory configuration information. The WTRU may receive an inventory trigger and determine, based at least on the trigger type and on the configuration, a first set of resources reserved for an unknown device and a second set of resources reserved for a known device. The WTRU may send an AIoT paging message including the inventory trigger type and information about the first set of resources and the second set of resources. The WTRU may receive, from a device, a first message using a first resource associated with the first set of resources, including a device ID. The WTRU may transmit a second message using a second resource also associated with the first set of resources, including the device ID received in the first message.


