RF Energy Harvesting Configuration With Event-Based UE Reporting
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Solution Overview
Problem
Existing wireless communication systems fail to efficiently communicate energy harvesting capabilities and parameters between user equipment (UE) and network entities, leading to inefficient bandwidth and power utilization in radio frequency (RF) energy harvesting.
Innovation Solution
UEs perform event-based energy harvesting reporting to network entities, indicating capabilities and parameters such as bandwidth, input power, frequency, and battery capacity, allowing network entities to configure efficient RF energy harvesting and adjust charging accordingly.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of energy
If event-based energy harvesting reporting is implemented, then energy harvesting efficiency is improved, but device complexity increases
Solution Approach 1:
The patent implements event-based energy harvesting reporting where the UE provides feedback to the network entity about its energy harvesting status, battery level, and capability information. This feedback mechanism enables the network to dynamically adjust RF signal parameters (bandwidth, power, frequency) to optimize energy harvesting efficiency while managing device complexity through standardized reporting procedures.
2Loss of energy
If RF signal parameters are dynamically adjusted based on UE capability, then energy harvesting efficiency is improved, but system complexity increases
Solution Approach 1:
The patent enables dynamic adjustment of RF signal parameters including bandwidth, input power, and frequency based on real-time UE capability information and energy harvesting status. The network entity configures different parameter sets according to UE-reported capabilities, allowing optimal power utilization efficiency while managing complexity through parameter-based configuration rather than structural changes.
3Productivity
If comprehensive capability reporting is required, then energy harvesting optimization is improved, but information processing overhead increases
Solution Approach 1:
The patent extracts and reports only the most critical capability parameters needed for energy harvesting optimization, such as battery capacity, supported bandwidths, and power ranges. By selecting and reporting only essential information rather than complete device specifications, the system achieves effective energy harvesting optimization while minimizing signaling overhead and information processing requirements.
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
Enhances the efficiency of RF energy harvesting by optimizing bandwidth and power utilization based on UE capabilities, preventing overcharging and improving overall power management.
Implementation Method 1
receiving, on a radio frequency spectrum band, a signal for the radio frequency energy harvesting to charge the UE
Data Source
AI summary
Methods, systems, and devices for wireless communications are described. A user equipment (UE) may perform event-based energy harvesting reporting to a network entity providing a signal for wireless charging or powering of the UE. The UE may signal its energy harvesting-related capabilities. and the network entity may signal to the UE a configuration for energy harvesting and event-based energy harvesting reporting. The configuration may include an indication of an energy harvesting charging range of the network entity. In some examples, the UE may indicate a maximum battery capacity of the UE, so that the network entity may determine to stop charging when the battery capacity is reached. The UE may be configured to report energy harvesting procedures according to triggering events, such as battery level of the UE or a switch in bandwidth or frequency of a charging signal.