Terminal Wake-Up Receiver Switching for Reliable Low-Power Monitoring
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Solution Overview
Problem
The detailed operation procedure for terminals equipped with a wake-up receiver to reduce power consumption by controlling a main receiver has not been specified in future wireless communication systems.
Innovation Solution
A terminal is equipped with a first reception unit for main signals and a second reception unit with lower power consumption, controlled by a unit that activates or deactivates both units, transitioning from the main unit to the wake-up unit when not in use.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the main receiver is used to monitor data presence, then detection reliability is improved, but power consumption increases
Solution Approach 1:
The receiver is divided into two independent parts: a wake-up receiver for low-power monitoring and a main receiver for full functionality. The wake-up receiver segments the detection task and operates independently to reduce overall power consumption while maintaining reliable data presence monitoring.
Solution Approach 2:
The wake-up receiver acts as an intermediary component that monitors data presence and controls the activation state of the main receiver. This mediator function allows the system to maintain reliable detection while minimizing power consumption by only activating the main receiver when necessary.
2Use of energy by moving object
If the wake-up receiver is activated to reduce power consumption, then energy efficiency is improved, but operational complexity increases
Solution Approach 1:
The wake-up receiver autonomously monitors data presence and automatically controls the activation state of the main receiver without requiring external intervention. This self-service mechanism simplifies the operational complexity by implementing intelligent autonomous control of power states.
Solution Approach 2:
The wake-up receiver continuously monitors data presence and provides feedback to control the activation state of the main receiver. This feedback loop enables dynamic adjustment of receiver operation based on actual data conditions, managing complexity through intelligent control.
3Reliability
If the main receiver remains activated continuously, then communication reliability is improved, but power consumption increases
Solution Approach 1:
The receiver system transitions from a static continuous operation mode to a dynamic state-changing mode. The main receiver is activated or deactivated based on wake-up receiver monitoring results, enabling the system to adapt its operational state and reduce energy loss while maintaining communication reliability when needed.
Data Source
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AI summary
A terminal includes: a first reception unit configured to receive a first signal from a base station; a second reception unit configured to receive a second signal from the base station by using a power consumption smaller than that of the first reception unit; and a control unit configured to activate or deactivate each of the first reception unit and the second reception unit. In a case where the first reception unit is activated and the second reception unit is deactivated, the control unit deactivates the first reception unit after activating the second reception unit.