Night Watch Device Wake-Up Method for Wireless Networks
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Solution Overview
Problem
Current network energy saving technologies struggle to balance device energy saving and timely wake-up, leading to potential delays or failures in device activation when needed.
Innovation Solution
A device wake-up method and system that employs night watch devices and nursing devices in a wireless network. Night watch devices manage nursing devices and remain in a shallow sleep or wake-up state, allowing them to promptly wake up nursing devices from a deep sleep state upon receiving a wireless packet from a terminal.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of energy
If devices enter deep sleep state to save energy, then energy saving effect is improved, but wake-up responsiveness deteriorates
Solution Approach 1:
The patent segments devices into two types: night watch devices that remain in shallow sleep state and nursing devices that enter deep sleep state. This segmentation allows the system to achieve both energy saving (nursing devices in deep sleep) and responsive wake-up (night watch devices monitoring and managing wake-up processes).
Solution Approach 2:
The night watch device acts as an intermediary between the terminal and the nursing device. When a terminal sends a wireless packet, the night watch device receives it while in shallow sleep state, processes the wake-up notification, and then wakes up the nursing device from deep sleep state, enabling timely response without requiring the nursing device to be fully awake all the time.
2Loss of time
If devices remain in wake-up state to ensure timely response, then wake-up responsiveness is improved, but energy consumption increases
Solution Approach 1:
By segmenting devices into night watch devices and nursing devices with different sleep states, the system reduces overall energy consumption. Most devices (nursing devices) can enter deep sleep state, while only a few (night watch devices) need to remain in shallow sleep state for monitoring and coordination functions.
Solution Approach 2:
Instead of having all devices remain in wake-up state (excessive action), the patent applies partial wake-up action where only the night watch device maintains shallow sleep state for monitoring, while nursing devices can fully enter deep sleep state. This partial action approach reduces total energy consumption while maintaining necessary responsiveness.
Data Source
AI summary
A device wake-up method, including sending, by a night watch device, in response to the night watch device receiving a wireless packet sent by a terminal, a wake-up notification to a nursing device managed by the night watch device, where the night watch device implements a night watch function, where a wireless network including a plurality of night watch devices that includes the nigh tight watch device, and the wireless network further includes a plurality of nursing devices that includes the nursing device, where each night watch device of the plurality of night watch devices is configured to manage one or more nursing devices of the plurality of nursing devices, and, when no terminal is connected to the wireless network, the night watch device is in a shallow sleep state or a wake-up state and the nursing device is in a deep sleep state.