Dynamic Power-Saving Signal Configuration for Mobile Terminals
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Solution Overview
Problem
Current mobile communication technologies, such as LTE-based Machine Type Communication (MTC) and Narrow Band Internet Of Thing (NB-IOT, lack flexible power-saving configurations for Wakeup Signal (WUS) reception modes and power consumption modes, leading to inefficient power management, especially in New Radio (NR) and LTE/LTE-Advanced standards.
Innovation Solution
A power-saving signal transmission and reception method that allows for flexible configuration of power consumption modes and signal transmission/reception modes in terminals, enabling base stations to dynamically adjust settings based on measurement information, service types, and transmission power to optimize power usage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the terminal monitors WUS periodically in current LTE MTC or NB-IOT systems, then power consumption is reduced compared to continuous monitoring, but the terminal lacks flexibility to adjust power-saving configurations and cannot adapt to different service types
Solution Approach 1:
The patent implements dynamic power-saving configurations by allowing the terminal to switch between different WUS monitoring modes (first mode with longer monitoring intervals, second mode with shorter intervals) based on service requirements and battery status. The network can dynamically indicate which mode to use through downlink messages, enabling adaptive power management rather than static periodic monitoring
Solution Approach 2:
The patent changes the monitoring parameter (monitoring interval) based on different operating modes. In the first power-saving mode, the terminal monitors WUS at longer intervals to conserve energy, while in the second mode, it monitors at shorter intervals for better service responsiveness. This parameter adjustment resolves the contradiction between power saving and adaptability
2Use of energy by moving object
If the terminal enters sleep state to reduce power consumption, then power consumption is reduced, but the terminal cannot receive downlink data or perform RRM measurements promptly
Solution Approach 1:
The patent implements periodic WUS monitoring as a wake-up mechanism. The terminal periodically wakes up to monitor for WUS messages at configured intervals, and if a WUS is detected, it transitions to an active state to receive downlink data or perform measurements. This periodic action balances power consumption with service accessibility by not requiring continuous monitoring
Solution Approach 2:
The network sends WUS as a preliminary signal before actual downlink data transmission. The terminal monitors for this preliminary wake-up signal, and only activates its high-power communication module when the WUS indicates data is coming. This preliminary action allows the terminal to stay in low-power state longer while still being ready to receive data promptly when needed
3Productivity
If the terminal monitors WUS with shorter intervals to improve service responsiveness, then service accessibility is improved, but power consumption increases
Solution Approach 1:
The patent allows dynamic switching between two monitoring intervals: a first (longer) interval for power-saving operation and a second (shorter) interval for high-responsiveness operation. The terminal can switch between these intervals based on service type, battery status, or network indication, enabling it to optimize the trade-off between productivity and power consumption in real-time
Data Source
AI summary
The present disclosure provides a power-saving signal transmission method, a power-saving signal reception method, a base station and a terminal. The power-saving signal transmission method includes: configuring, by a base station, a power-saving mode of a terminal, the power-saving mode including a power consumption mode and/or a power-saving signal transmission and reception mode of the terminal; and transmitting, by the base station, a power-saving signal to the terminal in accordance with the power-saving mode of the terminal.