UE Assistant Reporting for Adaptive DRX Group Configuration

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Solution Overview

Problem

Existing DRX configurations in wireless communication systems lead to inefficient power consumption and latency in data transmission due to inappropriate settings, as terminals often operate with configurations that do not align with their actual power and data transmission requirements.

Innovation Solution

User equipment (UE) reports assistant information for multiple DRX groups, indicating an expected DRX configuration to the base station, allowing for dynamic adjustment of DRX settings to optimize power consumption and data transmission efficiency.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Use of energy by moving object

If the terminal uses a DRX group in sleep state to reduce power consumption, then power consumption is reduced, but data transmission latency increases

Engineering Contradiction:
Improvepower consumptionVSAvoiddata transmission latency
Core Design Contradiction:
Use of energy by moving objectVSLoss of time

Solution Approach 1:

The patent applies dynamics by making the DRX configuration adjustable and adaptive rather than fixed. The terminal can dynamically switch between different DRX configurations (first configuration with longer cycle for power saving, second configuration with shorter cycle for low latency) based on real-time service requirements and channel conditions, resolving the contradiction between power consumption and transmission latency

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The patent changes the DRX cycle parameter based on service types and channel conditions. By adjusting the DRX cycle length parameter - using longer cycles for power-saving scenarios and shorter cycles for latency-sensitive scenarios - the system optimizes both power consumption and transmission latency according to actual needs

Inventive Principle:
Principle #35Parameter changes

2Device complexity

If the terminal uses a fixed DRX configuration, then configuration management is simplified, but power consumption and data transmission efficiency cannot be optimized

Engineering Contradiction:
Improveconfiguration management complexityVSAvoidpower consumption
Core Design Contradiction:
Device complexityVSUse of energy by moving object

Solution Approach 1:

The patent implements feedback mechanisms where the terminal reports service type information and channel condition information to the network side. Based on this feedback, the network configures appropriate DRX parameters, enabling adaptive optimization of power consumption without requiring complex terminal-side decision-making, thus maintaining relatively simple configuration management while achieving optimization

Inventive Principle:
Principle #23Feedback

Solution Approach 2:

The patent segments the DRX configuration into multiple predefined configurations (first DRX configuration, second DRX configuration) with different characteristics. This segmentation allows the system to select appropriate configurations based on service types, simplifying management compared to completely dynamic adjustment while still enabling optimization for different scenarios

Inventive Principle:
Principle #1Segmentation

3Loss of time

If the terminal monitors PDCCH continuously to ensure low-latency data reception, then data transmission latency is reduced, but power consumption increases

Engineering Contradiction:
Improvedata transmission latencyVSAvoidpower consumption
Core Design Contradiction:
Loss of timeVSUse of energy by moving object

Solution Approach 1:

The patent applies dynamics by adjusting the PDCCH monitoring behavior based on service requirements. For latency-sensitive services, the terminal monitors PDCCH more frequently (shorter DRX cycle), while for power-sensitive services, monitoring is reduced (longer DRX cycle). This dynamic adjustment resolves the contradiction between continuous monitoring for low latency and power consumption reduction

Inventive Principle:
Principle #15Dynamics

Data Source

PatentUS12408231B2Information processing method and apparatus, communication device, and storage medium
Publication Date: 2025.09.02 BEIJING XIAOMI MOBILE SOFTWARE CO LTD
  • US12408231B2 patent drawing
  • US12408231B2 patent drawing
  • US12408231B2 patent drawing

AI summary

An information processing method for a communication system based on cellular mobile communication, and performed by a User Equipment UE, the method including: reporting assistant information for at least one Discontinuous Reception (DRX) group among at least two DRX groups, the assistant information indicating an expected DRX configuration for the DRX group (S110).