Resonance Magnetic Coupling Access Control for Efficient Wireless Power

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Solution Overview

Problem

Conventional wireless power transfer methods face inefficiencies due to omnidirectional radiation patterns and require line-of-sight conditions, limiting mobility and efficiency when devices are relocated.

Innovation Solution

Implementing resonance magnetic coupled (RMC) networks for load-based access control, which utilize MIMO technology and beamforming to enhance power transfer efficiency and accommodate mobility by optimizing device positioning and orientation.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Area of stationary object

If omnidirectional radiation patterns are used for wireless power transfer, then coverage area is improved, but power transfer efficiency deteriorates

Engineering Contradiction:
Improvecoverage areaVSAvoidpower transfer efficiency
Core Design Contradiction:
Area of stationary objectVSLoss of energy

Solution Approach 1:

The patent employs unidirectional radiation patterns instead of omnidirectional patterns, creating asymmetric energy distribution that concentrates power transfer in specific directions. This asymmetry improves power transfer efficiency by reducing energy dispersion while maintaining adequate coverage through coordinated transmitter and receiver positioning.

Inventive Principle:
Principle #4Asymmetry

Solution Approach 2:

The patent introduces spatial dimensionality control through beamforming techniques, directing energy along specific three-dimensional paths rather than distributing it uniformly in all directions. This dimensional focus enables efficient power transfer while maintaining coverage through multiple spatial channels.

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

2Loss of energy

If unidirectional radiation is used for power transfer, then power transfer efficiency is improved, but mobility and adaptability deteriorate due to line-of-sight requirements

Engineering Contradiction:
Improvepower transfer efficiencyVSAvoidmobility
Core Design Contradiction:
Loss of energyVSAdaptability or versatility

Solution Approach 1:

The patent implements dynamic beamforming that adapts radiation patterns in real-time based on receiver position and environmental conditions. This dynamic adjustment maintains unidirectional efficiency while accommodating mobility by continuously optimizing the beam direction to track moving devices without requiring strict line-of-sight conditions.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The system provides multiple radiation patterns (omnidirectional, unidirectional, and intermediate patterns) that can be selected based on operational requirements. This multi-functionality enables the system to adapt between efficiency-oriented and mobility-oriented modes, serving diverse application scenarios with a single platform.

Inventive Principle:
Principle #6Universality (Multi-functionality)

3Adaptability or versatility

If devices are relocated away from optimal operating coordinates, then mobility is improved, but power transfer efficiency deteriorates due to fixed distance and orientation limitations

Engineering Contradiction:
ImprovemobilityVSAvoidpower transfer efficiency
Core Design Contradiction:
Adaptability or versatilityVSLoss of energy

Solution Approach 1:

The patent employs dynamic resonance frequency tuning and beamforming adjustment that automatically adapt when devices are relocated. The system continuously monitors coupling conditions and adjusts operating parameters to maintain optimal efficiency across varying distances and orientations, eliminating the efficiency drop-off associated with fixed-coordinate systems.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The system dynamically changes key operating parameters including resonance frequency, beam direction, and power allocation based on real-time device positions and coupling conditions. These parameter adjustments enable the system to maintain high efficiency regardless of device relocation, supporting mobility without sacrificing power transfer performance.

Inventive Principle:
Principle #35Parameter changes

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 power transfer efficiency and mobility by optimizing device positioning and orientation within RMC networks, addressing inefficiencies in conventional wireless power transfer methods.

Implementation Method 1

resonance magnetic coupled (RMC) networks

Methodology Applied
Scientific EffectMagnetic resonance: Resonance

Implementation Method 2

Resonance Magnetic Coupled (RMC) network

Methodology Applied
Scientific EffectMagnetic coupling: Electromagnetic Induction

Implementation Method 3

utilize MIMO technology and beamforming to enhance power transfer efficiency

Methodology Applied
Scientific EffectBeamforming:

Data Source

PatentUS12413105B2Methods and apparatus for load-based access control in resonance magnetic coupled networks
Publication Date: 2025.09.09 DRNC HOLDINGS INC
  • US12413105B2 patent drawing
  • US12413105B2 patent drawing
  • US12413105B2 patent drawing

AI summary

The disclosure pertains to methods and apparatus for operation by a wireless transmit/receive unit (WTRU). In one embodiment, a method includes receiving from a first device, a request to send a transmission to a second device via resonance magnetic coupling, the request including capability information indicating a set of load termination states supported by the first device; sending to the first device, measurement configuration information, the measurement configuration information including information indicating (1) timing and/or frequency information to schedule the measurement of a signal strength received by the first device; and (2) at least one load termination state of the set of load termination states to be used by the first device when performing measurements; receiving from the first device, measurement information resulting from measurements performed by the first device in accordance with the sent measurement configuration information; determining a load termination state for the first device based on the measurement information; and sending to the first device, information indicating the determined load termination state for the first device.