Dynamic Transmit Power Management for Wearable Interference

Resolve Bottlenecks,
Find Innovative SolutionsGenerate Solutions

Solution Overview

Problem

Interference between head-mounted displays (HMD) and wearable devices degrades communication quality, leading to inefficient transmission of motion data and poor user interaction with reality services.

Innovation Solution

A power management method executed by an electronic device that involves obtaining communication quality and motion data between devices, and managing transmit power based on this data to optimize communication.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If multiple wearable devices and HMD communicate simultaneously, then more devices can be connected and used, but communication quality degrades due to signal interference

Engineering Contradiction:

Improvenumber of connected devicesVSAvoidcommunication quality

Core Design Contradiction:

Adaptability or versatilityVSReliability

Solution Approach 1:

The patent dynamically adjusts transmit power parameters based on device motion states and communication quality feedback. When motion data indicates stable conditions, transmit power is reduced to minimize interference. When motion data indicates unstable conditions or communication quality degrades, transmit power is increased to maintain reliable communication. This parameter adjustment resolves the contradiction by adapting power levels to current system conditions.

Inventive Principle:

Principle #35Parameter changes

Solution Approach 2:

The patent implements a feedback mechanism where communication quality is continuously monitored and used to adjust transmit power settings. The system receives feedback about communication quality from receiving devices and adjusts the transmit power of reference devices accordingly. This closed-loop control allows the system to maintain reliable communication while minimizing interference to other devices.

Inventive Principle:

Principle #23Feedback

2Reliability

If transmit power is increased to improve communication quality, then communication reliability improves, but power consumption increases

Engineering Contradiction:

Improvecommunication qualityVSAvoidpower consumption

Core Design Contradiction:

ReliabilityVSUse of energy by moving object

Solution Approach 1:

The patent makes transmit power dynamic rather than static. The system continuously monitors communication quality and motion data, adjusting transmit power in real-time based on current conditions. When communication quality is good and motion is stable, power is reduced. When communication quality degrades or motion becomes unstable, power is increased. This dynamic approach resolves the contradiction by using minimum necessary power while maintaining reliability.

Inventive Principle:

Principle #15Dynamics

Solution Approach 2:

The patent changes the transmit power parameter based on monitored conditions including communication quality metrics and motion data characteristics. By adjusting this critical parameter dynamically, the system achieves reliable communication only when necessary while minimizing power consumption during stable communication periods.

Inventive Principle:

Principle #35Parameter changes

3Reliability

If transmit power is adjusted dynamically, then communication quality and power consumption are optimized, but device complexity increases

Engineering Contradiction:

Improvecommunication qualityVSAvoidpower management complexity

Core Design Contradiction:

ReliabilityVSDevice complexity

Solution Approach 1:

The patent implements self-service power management where the system automatically monitors its own communication quality and motion data, then autonomously adjusts transmit power without requiring external intervention. The reference devices themselves generate motion data that is used to control their own power settings, and receiving devices provide feedback that triggers automatic power adjustments. This self-managing approach resolves the complexity issue by eliminating the need for complex external control systems.

Inventive Principle:

Principle #25Self-service

4Reliability

If motion data is continuously monitored to adjust power, then communication quality improves, but processing requirements and energy consumption increase

Engineering Contradiction:

Improvecommunication qualityVSAvoidprocessing power

Core Design Contradiction:

ReliabilityVSPower

Solution Approach 1:

The patent applies partial monitoring and adjustment rather than continuous full-scale processing. The system monitors motion data and communication quality continuously but adjusts power settings only when specific thresholds are exceeded or conditions change significantly. This selective action approach resolves the contradiction by processing data only when necessary to maintain communication quality.

Inventive Principle:

Principle #16Partial or excessive action

Data Source

PatentUS20250105933A1Power management method, electronic device, and computer readable storage medium

Publication Date: 2025.03.27 HTC CORP

AI summary

The embodiments of the disclosure provide a power management method, an electronic device, and a computer readable storage medium. The method includes: obtaining a first communication quality between the first electronic device and a second electronic device; obtaining a first motion data of a reference device among the first electronic device and the second electronic device; and managing a first transmit power of the reference device among the first electronic device and the second electronic device according to the first motion data of the reference device and the first communication quality.