Wireless Device Sleep Mode Optimization
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Solution Overview
Problem
Existing wireless communication networks face challenges in reducing power consumption during communication, particularly in time-division communication methods, where devices often remain active for extended periods, leading to increased energy usage.
Innovation Solution
A wireless communication system that employs a time-division communication method where devices store and transmit data in frames, switching to sleep mode after the transmission process, optimizing power usage by minimizing active periods through efficient frame and sub-frame management and sleep mode activation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If devices remain active for extended periods to ensure continuous communication readiness, then communication reliability is improved, but power consumption increases
Solution Approach 1:
The patent implements periodic wake-up intervals where devices switch between active and sleep modes. Devices wake up at predetermined intervals to transmit or receive data, then return to sleep mode. This periodic operation maintains communication functionality while dramatically reducing power consumption compared to continuous operation.
Solution Approach 2:
The patent uses predetermined wake-up intervals to schedule device activation in advance. By calculating and setting wake-up times before communication events, devices can enter sleep mode confidently knowing when they need to be active, optimizing the balance between reliability and power consumption.
2Use of energy by moving object
If devices switch to sleep mode to reduce power consumption, then energy efficiency is improved, but communication response time increases
Solution Approach 1:
By establishing regular wake-up intervals, the system ensures devices are periodically available for communication. This predictable periodic operation allows receiving devices to know when to expect transmissions, reducing uncertainty and effective response time while maintaining sleep mode benefits.
Solution Approach 2:
The system uses acknowledgment mechanisms where receiving devices confirm data receipt during wake periods. This feedback ensures reliable communication even with intermittent operation, as senders can verify successful delivery without requiring continuous device presence.
3Speed
If devices transmit all data in single frames, then transmission speed is improved, but devices must remain active longer increasing power consumption
Solution Approach 1:
The patent divides transmission data into multiple frames and transmits them sequentially. Instead of requiring one long active period for all data, the system segments data into manageable frames that can be transmitted in shorter intervals, allowing devices to return to sleep mode between frames and reducing overall power consumption.
Solution Approach 2:
The system maintains continuous data transmission across multiple frames without requiring the device to stay awake indefinitely. By keeping the transmission process active across scheduled wake intervals, the system achieves effective continuous action while utilizing periodic sleep modes to conserve energy.
Data Source
AI summary
According to an embodiment, a wireless communication device performs time-division communication and includes a storage and one or more processors. The storage is configured to store transmission data to be sent in a first period of time. The one or more processors are configured to perform a transmission process of sending the transmission data in a first frame at start of a plurality of frames included in the first period of time, or perform a transmission process of sending a pieces of divided the transmission data in a plurality of successive frames beginning from the first frame and included in the first period of time. After the transmission process, the wireless communication device switches to sleep mode in one or more frames of the first period of time.