Wake-Up Signal Resource Allocation for Reliable Terminal Monitoring

Resolve Bottlenecks,
Find Innovative SolutionsGenerate Solutions

Solution Overview

Problem

The utilization of resources for transmitting wake-up signals is not optimized, leading to inefficiencies and resource wastage.

Innovation Solution

A communication method and apparatus that involves determining and utilizing the appropriate quantity of resources for monitoring wake-up signals based on transmission levels and channel quality, allowing for dynamic adjustment and reduced signaling overheads.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of manufacture

If a fixed quantity of resources is allocated for wake-up signal transmission, then the system is simple to implement, but resource utilization is low and causes waste

Engineering Contradiction:

Improveimplementation simplicityVSAvoidresource utilization efficiency

Core Design Contradiction:

Ease of manufactureVSLoss of energy

Solution Approach 1:

The patent implements dynamic resource allocation for wake-up signals by adjusting the quantity of resources (such as time-frequency resources or transmission power) based on channel conditions, terminal mobility, and network load. This allows the system to adapt resource usage to actual needs, improving utilization efficiency while maintaining implementation feasibility through standardized adjustment mechanisms.

Inventive Principle:

Principle #15Dynamics

Solution Approach 2:

The patent changes key parameters such as transmission power, time resource allocation, and frequency resource allocation for wake-up signals based on channel quality indicators (e.g., RSRP, SINR) and system conditions. By dynamically adjusting these parameters, the system optimizes resource utilization without requiring complete redesign of the wake-up signal framework.

Inventive Principle:

Principle #35Parameter changes

2Reliability

If more resources are allocated for wake-up signal transmission, then detection reliability improves, but resource waste increases

Engineering Contradiction:

Improvewake-up signal detection reliabilityVSAvoidresource consumption

Core Design Contradiction:

ReliabilityVSLoss of energy

Solution Approach 1:

The patent adjusts transmission parameters (power, time, frequency resources) for wake-up signals based on channel conditions. When channel quality is good, fewer resources are allocated; when channel quality deteriorates, resources are increased to maintain detection reliability. This dynamic parameter adjustment resolves the contradiction between reliability and resource consumption.

Inventive Principle:

Principle #35Parameter changes

Solution Approach 2:

The system uses feedback from channel quality measurements (e.g., RSRP, SINR reports from terminals) to adjust wake-up signal transmission resources. The network device receives channel state information and dynamically configures resource allocation accordingly, ensuring reliable detection while minimizing resource waste through closed-loop control.

Inventive Principle:

Principle #23Feedback

3Measurement precision

If the terminal device monitors wake-up signals continuously, then detection accuracy improves, but power consumption increases

Engineering Contradiction:

Improvewake-up signal detection accuracyVSAvoidterminal device power consumption

Core Design Contradiction:

Measurement precisionVSUse of energy by moving object

Solution Approach 1:

The patent implements periodic monitoring of wake-up signals at specific time intervals rather than continuous monitoring. The terminal device wakes up at predetermined monitoring occasions to check for wake-up signals, then returns to sleep mode. This periodic approach maintains detection accuracy for scheduled signals while dramatically reducing power consumption compared to continuous monitoring.

Inventive Principle:

Principle #19Periodic action

Solution Approach 2:

The system uses the low-power wake-up receiver to autonomously detect wake-up signals without requiring the main high-power receiver to be active. The wake-up receiver operates independently with minimal power consumption, only triggering the main receiver when a wake-up signal is actually detected, thus achieving accurate detection with low energy usage.

Inventive Principle:

Principle #25Self-service

4Reliability

If transmission level is increased for wake-up signals, then signal detection reliability improves, but resource overhead increases

Engineering Contradiction:

Improvesignal detection reliabilityVSAvoidsignaling overhead

Core Design Contradiction:

ReliabilityVSQuantity of substance

Solution Approach 1:

The patent dynamically adjusts the transmission level (power) of wake-up signals based on channel conditions and terminal locations. Instead of using a fixed high transmission level for all terminals, the system adapts power levels to actual needs, reducing signaling overhead for terminals with good channel conditions while maintaining reliable detection for those with poor channels.

Inventive Principle:

Principle #35Parameter changes

Data Source

PatentUS20250374194A1Communication method and apparatus

Publication Date: 2025.12.04 HUAWEI TECH CO LTD

AI summary

This application provides a communication method and apparatus. The method may be applied to a communication system like NR, LTE, or V2X. The method includes: A terminal device 120 first determines information 1, where the information 1 indicates a quantity of resources 1 used by the terminal device 120 to monitor a signal 1, and then the terminal device 120 monitors the signal 1 based on the information 1. In this way, the terminal device 120 can monitor the signal 1 based on the quantity of resources 1 that is indicated by the information 1, to avoid a waste of resources used for transmitting the signal 1, and improve utilization of the resources used for transmitting the signal 1.