Wake Up Signal Processing for Multiple DRX Groups

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Solution Overview

Problem

Existing communications systems lack a solution for indicating wake-up or sleep states for multiple DRX groups in terminal devices, which is essential for power saving and efficient data transmission.

Innovation Solution

A wake-up signal processing method and configuration method that allows a terminal device to receive a single Wake Up Signal (WUS) to indicate whether to start onDuration timers in the next DRX cycles of all DRX groups, simplifying the indication process for multiple DRX groups.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If a terminal device is configured with multiple DRX groups, then the adaptability and power management flexibility are improved, but the device complexity and difficulty of indicating wake-up/sleep states worsen

Engineering Contradiction:

Improvepower management flexibilityVSAvoidindication complexity

Core Design Contradiction:

Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The patent merges the wake-up indication function for multiple DRX groups into a single WUS. Instead of having separate indication mechanisms for each DRX group, one unified WUS is configured to control all DRX groups, thereby reducing indication complexity while maintaining the ability to manage multiple groups with different parameters

Inventive Principle:

Principle #5Merging (Combining)

Solution Approach 2:

The WUS is designed with multi-functionality to serve all DRX groups simultaneously. A single WUS configuration can indicate wake-up or sleep states for multiple DRX groups, making the indication mechanism universal across different DRX configurations without requiring group-specific indications

Inventive Principle:

Principle #6Universality (Multi-functionality)

2Measurement precision

If separate indication mechanisms are used for each DRX group, then the measurement precision and control accuracy are improved, but the loss of time and transmission delays increase

Engineering Contradiction:

Improveindication accuracyVSAvoidtransmission delay

Core Design Contradiction:

Measurement precisionVSLoss of time

Solution Approach 1:

The patent configures the WUS in advance to cover multiple DRX groups, so that the indication mechanism is ready before needed. This preliminary configuration avoids the time overhead of establishing separate indication mechanisms for each group, reducing transmission delays while maintaining indication accuracy through proper WUS design

Inventive Principle:

Principle #10Preliminary action

3Reliability

If multiple WUS configurations are used for multiple DRX groups, then the reliability and control precision are improved, but the device complexity and energy consumption increase

Engineering Contradiction:

Improvecontrol reliabilityVSAvoidenergy consumption

Core Design Contradiction:

ReliabilityVSUse of energy by moving object

Solution Approach 1:

The patent combines multiple WUS configurations into a single unified WUS that controls all DRX groups. This merging reduces the number of WUS transmissions and terminal device monitoring operations, thereby reducing energy consumption while maintaining reliable control through the unified indication mechanism

Inventive Principle:

Principle #5Merging (Combining)

Data Source

PatentUS12309870B2Wake up signal processing method, wake up signal configuration method, and related device

Publication Date: 2025.05.20 VIVO MOBILE COMM CO LTD

AI summary

A Wake Up Signal (WUS) processing method, a WUS configuration method, and a terminal device are provided. The WUS processing method includes: receiving a WUS when the terminal device is configured with at least two Discontinuous Reception (DRX) groups; where the WUS is used to indicate whether to start onDuration timers in the next DRX cycles of all of the at least two DRX groups.