AIoT Resource Pool Allocation for Battery-Less Multi-Reader Tags
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing cellular devices with energy harvesting capabilities face challenges due to high peak power consumption, making them incompatible with battery-less IoT devices that rely on ambient energy sources, leading to high maintenance costs and environmental issues.
Innovation Solution
A wireless transmit/receive unit (WTRU) manages AIoT resource pools for time-frequency resource allocation, enabling efficient communication with AIoT devices by transmitting and receiving ambient Internet-of-things signals using synchronized time-frequency resources.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Power
If existing cellular devices are used with energy harvesting, then communication functionality is provided, but peak power consumption exceeds available energy from ambient sources
Solution Approach 1:
The patent segments communication traffic into different priority levels (e.g., uplink data, downlink data, control signals) and allocates specific time-frequency resources to each segment. This allows the device to transmit only essential segments when energy is limited, reducing peak power consumption while maintaining critical communication functionality.
Solution Approach 2:
The patent implements periodic transmission opportunities where devices can send data at scheduled intervals rather than continuously. This periodic action allows energy harvesting devices to accumulate energy over time and transmit data in bursts when energy is available, matching the intermittent nature of ambient energy sources.
2Productivity
If battery-powered IoT devices are deployed at large scale, then connectivity and functionality are improved, but maintenance costs and environmental impact increase
Solution Approach 1:
The patent enables IoT devices to harvest energy from their operational environment (radio waves, light, motion, heat) to power themselves autonomously. This self-service capability eliminates the need for manual battery replacement or recharging, significantly reducing maintenance costs while enabling large-scale deployment of battery-less devices.
3Ease of manufacture
If battery-less IoT devices are deployed, then maintenance costs and environmental impact are reduced, but power consumption must be limited to ambient energy availability
Solution Approach 1:
The patent implements dynamic resource allocation where time-frequency resources are adjusted based on real-time energy availability and traffic requirements. The system can dynamically switch between different transmission modes, allocate more resources when energy is abundant, and conserve resources when energy is limited, providing adaptability despite the constraints of battery-less operation.
Data Source
AI summary
Procedures for ambient internet of things (AIoT) are disclosed herein. In an example, a wireless transmit/receive unit (WTRU) may receive a request message comprising a set of device identifications (IDs). The WTRU may send a report message indicating inventory parameters. The WTRU may receive an indication of an AIoT resource pool comprising information indicating time-frequency resources for transmission and reception of ambient Internet-of-things (AIoT) signals and linkage information for the resources. On a condition that the WTRU is configured to be a transmitting WTRU, the WTRU may transmit, to an AIoT device, the information indicating the inventory parameters, and an occasion synchronization message using a time-frequency resource for transmission of AIoT signals. The WTRU may receive, from the AIoT device, a message indicating a random identification (ID) for the AIoT device using linked resources.