DRX Communication Synchronization Using Dual Start Offsets

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Solution Overview

Problem

The existing DRX communication functions in wireless networks are started randomly by terminals and base stations, leading to poor controllability and misalignment, which affects interaction and access stability, particularly in scenarios requiring higher reliability.

Innovation Solution

Implementing synchronized DRX communication by adding first and second start offset durations to the DRX parameters of the base station and terminal, ensuring they start their functions at aligned or partially aligned times.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If the terminal and base station randomly start DRX communication function after acquiring DRX parameters, then the DRX communication function can be activated, but the start controllability is poor and alignment cannot be guaranteed

Engineering Contradiction:
ImproveDRX communication reliabilityVSAvoidDRX start controllability
Core Design Contradiction:
ReliabilityVSEase of operation

Solution Approach 1:

The patent applies preliminary action by pre-configuring start offset parameters (first start offset for base station, second start offset for terminal) into the DRX parameters before activation. This allows both devices to calculate and align their DRX activation times in advance, ensuring synchronized startup while maintaining controllability. The offset parameters are determined beforehand based on device capabilities and network requirements.

Inventive Principle:
Principle #10Preliminary action

2Ease of manufacture

If DRX communication function is started randomly, then activation is simple, but alignment between terminal and base station cannot be ensured, affecting interaction stability

Engineering Contradiction:
ImproveDRX activation simplicityVSAvoidDRX alignment stability
Core Design Contradiction:
Ease of manufactureVSStability of the object's composition

Solution Approach 1:

The patent changes the parameter structure of DRX configuration by adding start offset parameters (first start offset and second start offset) to the existing DRX parameters. This parameter enhancement allows the system to control the timing of DRX activation precisely, ensuring alignment between terminal and base station while maintaining the simplicity of activation through standardized parameter passing.

Inventive Principle:
Principle #35Parameter changes

3Reliability

If start offset parameters are added to DRX parameters, then DRX start alignment is achieved, but the parameter structure becomes more complex

Engineering Contradiction:
ImproveDRX start alignmentVSAvoidDRX parameter structure
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The patent applies universality by designing the start offset parameters as part of the standardized DRX parameter structure that can be universally applied across different devices and scenarios. The first start offset and second start offset parameters serve multiple purposes: they enable alignment, accommodate different device capabilities, and work with various DRX configurations, reducing the need for separate customization mechanisms.

Inventive Principle:
Principle #6Universality (Multi-functionality)

Data Source

PatentEP4033823B1DRX communication synchronization and start control method and apparatus, device, and storage medium
Publication Date: 2025.11.05 ZTE CORP
  • EP4033823B1 patent drawingFigure 1~3
  • EP4033823B1 patent drawingFigure 4~6
  • EP4033823B1 patent drawingFigure 7~9

AI summary

Embodiments of the present disclosure provide a DRX communication synchronization and start control method and apparatus, a device, and a readable storage medium. When a first DRX parameter of a base station and a second DRX parameter of a terminal are generated, a first start offset duration and a second start offset duration can be respectively added into the first DRX parameter and the second DRX parameter; and after respectively acquiring the first DRX parameter and the second DRX parameter, the base station and the terminal can synchronously start a DRX communication function according to the first start offset duration in the first DRX parameter and the second start offset duration in the second DRX parameter respectively. Compared with a manner in a related art that the base station and the terminal randomly start the DRX communication function, a better controllability on the DRX communication function can be supported, and the solution is more applicable to various communication application scenarios.