DRX Configuration for User Equipment Power Saving

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Solution Overview

Problem

Existing methods for configuring discontinuous reception (DRX) in user equipment (UE) only consider quality of service (QoS) requirements from the core network, neglecting the unique features of individual UEs, which affects power saving performance and user experience.

Innovation Solution

Configuring DRX parameters based on UE-specific feature information, including service type, packet arrival interval, and data packet size, to tailor DRX settings to each UE's characteristics, thereby enhancing power saving and user experience.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Device complexity

If DRX parameters are configured based only on QoS requirements from core network, then system complexity is reduced and configuration is simplified, but power saving performance and user experience deteriorate due to neglecting individual UE features

Engineering Contradiction:
ImproveDRX configuration complexityVSAvoidterminal power consumption
Core Design Contradiction:
Device complexityVSLoss of energy

Solution Approach 1:

The patent applies local quality by configuring DRX parameters individually for each UE based on their specific features (terminal type, service type, packet arrival interval, packet size) rather than using a uniform configuration for all UEs. This allows each UE to have optimized DRX settings tailored to its local characteristics, improving power saving performance while maintaining manageable system complexity through automated feature-based configuration.

Inventive Principle:
Principle #3Local quality

Solution Approach 2:

The patent implements dynamics by making DRX parameters adaptive to changing UE features and service conditions. The base station dynamically determines DRX parameters based on current UE features, service types, and traffic patterns, allowing the system to adjust configurations in real-time rather than using static QoS-only parameters, thereby optimizing power consumption without excessive complexity.

Inventive Principle:
Principle #15Dynamics

2Ease of operation

If DRX parameters are configured based only on QoS requirements from core network, then configuration process is simplified, but user experience deteriorates due to lack of customization for different UE features

Engineering Contradiction:
ImproveDRX configuration easeVSAvoidUE feature adaptability
Core Design Contradiction:
Ease of operationVSAdaptability or versatility

Solution Approach 1:

The patent applies self-service by enabling the base station to automatically determine and configure appropriate DRX parameters based on UE-reported features and service characteristics. The UE provides its feature information, and the base station autonomously selects optimal DRX parameters without requiring manual intervention or complex user input, thus maintaining ease of operation while achieving high adaptability to individual UE features.

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

The patent implements parameter changes by varying DRX parameters (such as DRX cycle length, on-duration, inactivity timer) based on specific UE features and service types. Different terminal types, service types, packet arrival intervals, and packet sizes trigger different parameter configurations, allowing the system to maintain simple configuration processes while achieving versatile adaptation to diverse UE characteristics through parameter adjustment.

Inventive Principle:
Principle #35Parameter changes

3Adaptability or versatility

If frequent air interface signaling exchange occurs due to separated background data packets, then data transmission flexibility is improved, but system performance deteriorates

Engineering Contradiction:
Improvedata transmission flexibilityVSAvoidsystem performance
Core Design Contradiction:
Adaptability or versatilityVSProductivity

Solution Approach 1:

The patent applies periodic action by configuring DRX parameters that establish regular monitoring cycles for UEs handling background data traffic. Instead of requiring continuous or frequent signaling exchanges for each separated data packet, the system uses periodic DRX cycles to monitor control channels and data, reducing signaling overhead while maintaining the ability to handle flexible data transmission patterns characteristic of background services.

Inventive Principle:
Principle #19Periodic action

Solution Approach 2:

The patent implements continuity of useful action by ensuring that DRX configurations maintain continuous data transmission capability for background services while reducing unnecessary signaling. The periodic monitoring cycles ensure that data transmission flexibility is preserved throughout the DRX period, allowing separated background data packets to be transmitted efficiently without frequent interruptions or excessive signaling exchanges that would degrade system performance.

Inventive Principle:
Principle #20Continuity of useful action

Data Source

PatentEP2846589B1Discontinuous reception configuration method of user equipment, base station and system
Publication Date: 2021.07.07 HUAWEI TECH CO LTD
  • EP2846589B1 patent drawingFigure 1~4
  • EP2846589B1 patent drawingFigure 5
  • EP2846589B1 patent drawingFigure 6

AI summary

The present invention applies to the field of communications, and provides a method, a base station, and a system for configuring discontinuous reception of a user equipment; where the method includes: receiving a message carrying DRX feature information of a user equipment UE; setting a DRX parameter of the UE according to the DRX feature information; and sending the DRX parameter of the UE to the UE. Technical solutions provided by the present invention have advantages of improving power saving performance and user experience.