Sidelink DRX Parameter Selection Using QoS Mapping

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Solution Overview

Problem

The existing DRX mechanism in sidelink transmission fails to determine appropriate DRX parameters for physical transmissions, especially when QoS parameters are not associated with specific transmissions.

Innovation Solution

A method for determining DRX parameters by associating them with Quality of Service (QoS) parameters or using default parameters, based on configuration information, to guide physical transmissions in terminal devices.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Use of energy by moving object

If the DRX mechanism is introduced in sidelink transmission to save power, then power consumption is reduced, but it becomes impossible to determine appropriate DRX parameters for physical transmissions in some situations

Engineering Contradiction:
Improvepower consumptionVSAvoidDRX parameter determination
Core Design Contradiction:
Use of energy by moving objectVSEase of operation

Solution Approach 1:

The network device pre-configures multiple DRX parameter sets corresponding to different QoS parameters before sidelink transmission. The terminal device stores these pre-configured parameter sets and selects the appropriate one based on the QoS parameter of the physical transmission, eliminating the need for real-time DRX parameter determination

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The QoS parameter acts as an intermediary that links the physical transmission to the appropriate DRX parameter set. By associating DRX parameters with QoS parameters, the system enables indirect determination of DRX parameters through the QoS parameter without requiring direct configuration for each transmission scenario

Inventive Principle:
Principle #24Intermediary (Mediator)

Data Source

PatentUS12526683B2Method for determining DRX parameter, terminal device and storage medium
Publication Date: 2026.01.13 GUANGDONG OPPO MOBILE TELECOMMUNICATIONS CORP LTD
  • US12526683B2 patent drawing
  • US12526683B2 patent drawing
  • US12526683B2 patent drawing

AI summary

A method for determining a DRX parameter, a terminal device, and a non-transitory computer-readable storage medium are provided. The method includes: determining, by a terminal device, a DRX parameter corresponding to a first physical transmission, the DRX parameter corresponding to the first physical transmission being a first DRX parameter corresponding to a Quality of Service (QoS) parameter associated with the first physical transmission or a default second DRX parameter; and performing, by the terminal device, the first physical transmission based on the DRX parameter corresponding to the first physical transmission.