RF Energy Harvesting Resource Indication for Wireless UEs
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Solution Overview
Problem
Current wireless communication systems face inefficiencies in radio frequency energy harvesting (RF-EH) as user equipment (UE) often perform energy harvesting without advance knowledge of associated data communications, leading to suboptimal power generation and resource utilization.
Innovation Solution
A method where a UE receives an indication of a set of resources associated with a data communication from a first device to a second device, allowing for targeted RF-EH on those resources, enabling more efficient power generation by leveraging existing data communications without being an intended target.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If UE performs energy harvesting without advance knowledge of data communications, then energy harvesting can be implemented in an opportunistic manner, but power generation efficiency is suboptimal
Solution Approach 1:
The network device performs preliminary action by indicating resource information for energy harvesting to the UE in advance before the actual data communication occurs. This allows the UE to prepare and perform energy harvesting on the indicated resources without needing to detect or know about the data communication in real-time, thereby improving power generation efficiency while maintaining opportunistic harvesting capability.
2Ease of operation
If UE performs blind energy harvesting on resources without advance knowledge, then no coordination with transmission source is needed, but resource utilization is suboptimal
Solution Approach 1:
The network device acts as an intermediary by providing resource indication information to the UE. This intermediary mechanism enables coordination between the transmission source and the energy harvesting UE without requiring the UE to perform blind harvesting, thereby improving resource utilization efficiency while maintaining the simplicity of independent UE operation.
3Quantity of substance
If UE harvests energy from data communications it is not the intended target of, then additional power generation opportunities are created, but resource allocation complexity increases
Solution Approach 1:
The resource information for energy harvesting is segmented and indicated separately from the data communication resources. The network device divides the resource allocation into distinct parts: data communication resources and energy harvesting resources. This segmentation allows the UE to harvest energy from resources not intended for its data communication, increasing available energy while keeping the resource configuration manageable through structured indication.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This approach enhances power generation efficiency by allowing UEs to harvest energy from resources already being transmitted during data communications between other devices, improving battery life and resource utilization in wireless communication systems.
Implementation Method 1
performing radio frequency energy harvesting (RF-EH) on at least part of the set of resources
Data Source
AI summary
Disclosed are techniques for radio frequency energy harvesting (RF-EH). In an aspect, a communications device determines a set of resources associated with a data communication from a first device to a second device, and transmits, to at least a first user equipment (UE), an indication of the set of resources for radio frequency energy harvesting (RF-EH), wherein the first device and the second device are separate from the first UE. In a further aspect, the first UE receives an indication of a set of resources associated with a data communication from a first device to a second device, wherein the first device and the second device are separate from the first UE, and performs RF-EH on at least part of the set of resources.