Wireless Wakeup System Using Signature Beacon Signals
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Wireless communication devices in power saving mode face inefficiencies as they often exit this mode unnecessarily, shortening battery life due to scheduled wake-ups even when no communication is required, leading to unnecessary power consumption.
Innovation Solution
Implementing a wireless signature beacon trigger system that allows devices to wake up only when needed, using a unique signature beacon signal associated with a group identifier and trigger type, allowing the network to selectively wake up devices for communication, thereby reducing unnecessary power usage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If devices wake up at scheduled intervals to check for communication needs, then communication readiness is maintained, but battery life is shortened due to unnecessary power mode exits
Solution Approach 1:
The patent introduces an intermediary wake-up signal mechanism where a receiving device actively transmits a wake-up signal to trigger the transmitting device to exit power-saving mode. This mediator approach allows the transmitting device to remain in low-power state until actually needed, eliminating the need for periodic scheduled wake-ups while maintaining communication readiness when required.
Solution Approach 2:
The system implements self-service by having the receiving device monitor for communication needs and autonomously initiate wake-up signals only when actual communication is required. This eliminates the wasteful scheduled wake-up cycle where devices periodically exit power-saving mode regardless of whether communication is needed, allowing the transmitting device to self-manage its power state based on actual demand.
2Duration of action of moving object
If devices remain in power saving mode continuously, then battery life is extended, but communication responsiveness is reduced
Solution Approach 1:
The wake-up signal acts as an intermediary mechanism that bridges the gap between extended power-saving mode and rapid communication responsiveness. The receiving device can immediately transmit a wake-up signal when communication is needed, causing the transmitting device to exit power-saving mode without delay, thus maintaining responsiveness while allowing extended periods in low-power state.
Solution Approach 2:
The receiving device performs preliminary monitoring and preparation, staying in an active state to detect when communication is needed. This preliminary action allows the system to maintain battery life by keeping the transmitting device in power-saving mode while ensuring rapid response capability through the receiving device's readiness to send wake-up signals instantaneously.
3Use of energy by moving object
If devices use traditional scheduled wake-up mechanisms, then power consumption is high due to frequent mode switching, but simplicity of implementation is maintained
Solution Approach 1:
The wake-up signal mechanism serves as an intermediary that replaces complex scheduled wake-up timing and mode-switching logic with a simpler event-driven approach. The transmitting device only needs to listen for wake-up signals from the receiving device, eliminating the need for complex scheduled wake-up calendars and automatic mode-switching logic while significantly reducing power consumption.
Solution Approach 2:
The patent transforms the periodic scheduled wake-up action into an event-driven periodic action where wake-up signals are sent only when actually needed. This maintains the simplicity of periodic checking from the transmitting device's perspective (it simply waits for signals) while eliminating the wasteful periodic mode switching, as the receiving device controls when wake-up events occur based on actual communication needs.
Data Source
AI summary
A computer device may include a memory storing instructions and a processor configured to execute the instructions to select a broadcast method for a wakeup signal for a wireless communication device; instruct a base station to broadcast the wakeup signal using the selected broadcast method; and provide information identifying the selected broadcast method to the wireless communication device. The processor may be further configured to receiving a wakeup request from a machine-type communication interworking function (MTC-IWF) device; map the received wakeup request to a wakeup signature beacon signal associated with the wireless communication device; and instruct the base station to transmit a wakeup signature beacon signal to the wireless communication device based on the received wakeup request.