Wireless Terminal RF Circuit Power Control

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Solution Overview

Problem

Wireless terminals experience electric energy waste and reduced service life of radio frequency circuits due to continuous power supply, which affects reliability and efficiency.

Innovation Solution

Implementing a power supply control method that stops powering radio frequency circuits during dormant states in DRX and DTX periods, using electronic switches to disconnect power supply lines, allowing for flexible and diverse power-cutoff periods.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If power is supplied to the radio frequency circuit all the time, then the radio frequency circuit can maintain ready state for immediate communication, but electric energy is wasted and the service life of the radio frequency circuit is reduced

Engineering Contradiction:
Improveservice life of radio frequency circuitVSAvoidelectric energy consumption
Core Design Contradiction:
ReliabilityVSUse of energy by moving object

Solution Approach 1:

The patent implements periodic power supply to the radio frequency circuit by controlling it to operate only during awake states in DRX/DTX periods and to stop during dormant states. This periodic activation pattern reduces continuous power consumption while maintaining communication functionality when needed, directly resolving the contradiction between energy conservation and circuit readiness.

Inventive Principle:
Principle #19Periodic action

2Productivity

If power is supplied to the radio frequency circuit all the time, then the wireless terminal can immediately send or receive messages, but electric energy is wasted

Engineering Contradiction:
Improvemessage sending/receiving capabilityVSAvoidelectric energy waste
Core Design Contradiction:
ProductivityVSLoss of energy

Solution Approach 1:

The patent dynamically adjusts the power supply state of the radio frequency circuit based on the wireless terminal's communication state. The circuit is powered on during awake states when communication is needed and powered off during dormant states when no communication occurs, making the system adaptive to actual usage requirements and eliminating energy waste during idle periods.

Inventive Principle:
Principle #15Dynamics

3Duration of action of moving object

If power is supplied to the radio frequency circuit all the time, then communication operations can be performed without delay, but the service life of the radio frequency circuit is affected

Engineering Contradiction:
Improvecommunication operation continuityVSAvoidservice life of radio frequency circuit
Core Design Contradiction:
Duration of action of moving objectVSDuration of action of stationary object

Solution Approach 1:

The patent employs periodic power supply cycles where the radio frequency circuit is activated during awake states for communication operations and deactivated during dormant states. This periodic operation pattern extends the service life of the circuit by reducing continuous stress from constant power supply, while still enabling communication operations whenever needed through timely activation.

Inventive Principle:
Principle #19Periodic action

Data Source

PatentUS10194397B2Power supply control method and wireless terminal
Publication Date: 2019.01.29 HUAWEI DEVICE CO LTD
  • US10194397B2 patent drawing
  • US10194397B2 patent drawing
  • US10194397B2 patent drawing

AI summary

A power supply control method and a wireless terminal. The method includes, in a part or all of a time period during which a wireless terminal is in a dormant state, stopping supplying power to some or all circuits of a radio frequency circuit in the wireless terminal, where the dormant state includes at least one of a dormant state in a discontinuous transmission (DTX) period and a dormant state in a discontinuous reception (DRX) period and the problems of electric energy waste and service life reduction of a wireless terminal are resolved.