Slave Device Wake-Up via Excitation Signal
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Solution Overview
Problem
As the number of smart devices increases, devices like wearable devices and Machine Type Communication (MTC) devices face battery life limitations due to continuous power consumption from unnecessary listening for calls, leading to frequent charging needs.
Innovation Solution
A call processing method and apparatus that wakes up slave devices from a sleep state to an active state only when needed by sending an excitation signal, reducing unnecessary power consumption by disabling the receiving function of the air interface during idle periods.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If slave devices continuously monitor for calls in active state, then call reception reliability is improved, but power consumption increases
Solution Approach 1:
The slave device dynamically switches between active state (for reliable call reception) and sleep state (for power saving) based on whether it is being called. The device transitions to active state upon receiving a call indication and returns to sleep state after the call, optimizing the balance between reliability and power consumption.
Solution Approach 2:
Instead of continuous monitoring, the slave device periodically transitions between sleep and active states. It remains in sleep state during idle periods and activates only when needed for call reception, reducing overall power consumption while maintaining call reception capability.
2Use of energy by moving object
If slave devices remain in sleep state to save power, then power consumption is reduced, but call reception response time increases
Solution Approach 1:
The master device sends a call indication to the slave device before the actual call begins. This preliminary action allows the slave device to wake up from sleep state in advance, ensuring it is in active state and ready to receive the call immediately, thus minimizing response time while still benefiting from power savings during idle periods.
3Reliability
If slave devices are frequently woken up from sleep state, then call reception capability is maintained, but power consumption increases
Solution Approach 1:
The master device acts as an intermediary by sending call indications to the slave device before actual calls. This allows the slave device to remain in sleep state longer and only activate when truly needed, reducing the frequency of wake-up cycles and associated power consumption while maintaining call reception capability.
Data Source
AI summary
Embodiments of the present application provide a call processing method and an apparatus thereof. The method includes: receiving information associated with calling at least one slave device, where the information associated with calling at least one slave device is used to request to wake up the at least one slave device from a sleep state to an active state; and sending an excitation signal to the at least one slave device, where the excitation signal is used to request to wake up the at least one slave device. In the method and apparatus in the embodiments of the present application, a slave device is rendered in a sleep state, and the slave device is activated when the slave device is being called or is going to be called, which can save power consumption caused by unnecessary listening by the slave device.