MIMO Receiver Amplifier Gain Control for Lower Power Consumption

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Solution Overview

Problem

MIMO-based electronic devices consume excessive power due to the continuous operation of multiple amplifiers, even when not all are necessary for signal processing, leading to wasted power.

Innovation Solution

An electronic device with a method to adjust the gain of amplifiers connected to receivers based on signal status and preset amplifier control conditions, allowing for the reduction of power consumption by setting unused amplifiers to a low power state.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If multiple amplifiers are operated continuously in a MIMO system, then signal reception performance is improved, but power consumption increases

Engineering Contradiction:

Improvesignal reception performanceVSAvoidpower consumption

Core Design Contradiction:

ReliabilityVSUse of energy by moving object

Solution Approach 1:

The patent applies dynamics by making the amplifier operation state adjustable rather than fixed. The controller dynamically changes the operating state of amplifiers based on received signal strength, switching between active and inactive states to match actual communication needs, thereby resolving the contradiction between maintaining signal reception performance and reducing power consumption

Inventive Principle:

Principle #15Dynamics

Solution Approach 2:

The patent changes the operational parameter (power state) of amplifiers based on signal conditions. By monitoring received signal strength and adjusting amplifier power states accordingly, the system adapts parameter settings to balance performance and energy consumption, directly addressing the technical contradiction

Inventive Principle:

Principle #35Parameter changes

2Productivity

If all amplifiers are operated simultaneously, then data transmission capacity is increased, but unnecessary power is wasted

Engineering Contradiction:

Improvedata transmission capacityVSAvoidpower wastage

Core Design Contradiction:

ProductivityVSLoss of energy

Solution Approach 1:

The patent implements partial action by operating only the necessary number of amplifiers based on actual communication requirements. Instead of running all amplifiers continuously, the system activates only those needed for current signal conditions, reducing energy waste while maintaining adequate data transmission capacity

Inventive Principle:

Principle #16Partial or excessive action

Solution Approach 2:

The system performs self-service by autonomously monitoring signal conditions and adjusting amplifier operation states without external intervention. The controller automatically determines which amplifiers should be active or inactive based on received signal strength, enabling the system to self-optimize power usage while maintaining productivity

Inventive Principle:

Principle #25Self-service

Data Source

PatentUS9807693B2Method for minimizing power consumption and electronic device implementing the same

Publication Date: 2017.10.31 SAMSUNG ELECTRONICS CO LTD

AI summary

A method of minimizing power consumption of an electronic device is provided. The method includes receiving a signal through a plurality of receivers of the electronic device, checking a status of the received signal, determining whether the received signal satisfies a preset amplifier control condition based on the status of the received signal, and adjusting a gain of an amplifier, which is connected to a receiver of the plurality of receivers, in response to the preset amplifier control condition when the preset amplifier control condition is satisfied.