MIMO Transceiver Path Control via Position Sensor Input

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Solution Overview

Problem

Wireless communication devices powered by batteries face inefficiencies in battery life when using multiple-input and multiple-output (MIMO) operation, as it consumes more power than non-MIMO operation, necessitating a method to optimize MIMO usage based on position sensor inputs to balance throughput and battery life.

Innovation Solution

A communication device is configured to selectively enable or disable MIMO operation by using position sensor data from sensors like capacitive, infrared, gyroscope, or accelerometer to determine which transceiver paths to activate or deactivate, thereby optimizing battery life and throughput by adjusting MIMO usage based on user position, orientation, and hand grip.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If MIMO operation is enabled to improve data communication throughput, then data transmission rate is improved, but battery consumption increases

Engineering Contradiction:

Improvedata transmission rateVSAvoidbattery consumption

Core Design Contradiction:

ProductivityVSUse of energy by moving object

Solution Approach 1:

The system dynamically adjusts MIMO operation status based on real-time position sensor input, transitioning between MIMO and non-MIMO modes according to user holding patterns. This dynamic adaptation allows the device to optimize between throughput and power consumption based on current operational context

Inventive Principle:

Principle #15Dynamics

Solution Approach 2:

The invention changes the operational parameter of transceiver paths by disabling specific paths based on position sensor data. When sensors detect certain hand holding positions, the system modifies which transceiver paths remain active, thereby adjusting power consumption while maintaining adequate data transmission capability

Inventive Principle:

Principle #35Parameter changes

2Duration of action of moving object

If MIMO operation is disabled to reduce battery consumption, then battery life is extended, but data transmission rate decreases

Engineering Contradiction:

Improvebattery lifeVSAvoiddata transmission rate

Core Design Contradiction:

Duration of action of moving objectVSProductivity

Solution Approach 1:

Instead of completely disabling MIMO operation, the system selectively disables only certain transceiver paths based on position sensor input. This partial action maintains adequate data transmission capability while reducing power consumption sufficiently to extend battery life

Inventive Principle:

Principle #16Partial or excessive action

Solution Approach 2:

The system continuously monitors position sensor input and uses this feedback to adjust MIMO operation status. This closed-loop control ensures that MIMO is disabled only when position data indicates user holding patterns that would benefit from reduced power consumption, maintaining optimal balance between battery life and throughput

Inventive Principle:

Principle #23Feedback

Data Source

PatentUS9628136B2Methods and apparatus for controlling multiple-input and multiple-output operation in a communication device based on a position sensor input

Publication Date: 2017.04.18 MOTOROLA MOBILITY LLC

AI summary

A method for disabling multiple-input and multiple-output operation in a communication device includes communicating data using multiple-input and multiple-output operation, wherein the data is communicated using multiple transceiver paths. Further, the method includes receiving position sensor input and disabling at least a portion of one or more transceiver paths, of the multiple transceiver paths, based on the position sensor input.