Configured Grant Resource Handling With DFI for NR-U and URLLC

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Solution Overview

Problem

The challenge of effectively utilizing NR-U CG resources and URLLC CG resources in an interference-controlled new radio unlicensed scenario for ultra reliability and low latency communication (URLLC) services has not been adequately addressed.

Innovation Solution

A method is provided where a terminal device responds to downlink feedback information (DFI) by either ignoring or using CG resources based on their type, specifically for URLLC CG resources or NR-U CG resources, ensuring appropriate handling of these resources in coexistence scenarios.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Loss of time

If type-1 CG resources are used for URLLC services, then low latency is achieved, but resource utilization efficiency deteriorates due to ignoring DFI feedback

Engineering Contradiction:
ImprovelatencyVSAvoidresource utilization efficiency
Core Design Contradiction:
Loss of timeVSProductivity

Solution Approach 1:

The patent segments CG resources into two distinct types: type-1 CG resources for URLLC services that ignore DFI to ensure low latency, and type-2 CG resources for eMBB services that use DFI to ensure reliable delivery. This segmentation allows each resource type to be optimized for its specific service requirements without compromise.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

Different quality characteristics are applied to different CG resource types: type-1 resources have the quality characteristic of ignoring DFI feedback to minimize latency for URLLC, while type-2 resources have the quality characteristic of using DFI feedback to ensure reliable delivery for eMBB services.

Inventive Principle:
Principle #3Local quality

2Productivity

If type-2 CG resources are used for eMBB services, then resource utilization efficiency is improved through DFI feedback, but latency increases due to feedback dependency

Engineering Contradiction:
Improveresource utilization efficiencyVSAvoidlatency
Core Design Contradiction:
ProductivityVSLoss of time

Solution Approach 1:

The patent segments CG resources into two distinct types: type-1 CG resources for URLLC services that ignore DFI to ensure low latency, and type-2 CG resources for eMBB services that use DFI to ensure reliable delivery. This segmentation allows each resource type to be optimized for its specific service requirements without compromise.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

Different quality characteristics are applied to different CG resource types: type-1 resources have the quality characteristic of ignoring DFI feedback to minimize latency for URLLC, while type-2 resources have the quality characteristic of using DFI feedback to ensure reliable delivery for eMBB services.

Inventive Principle:
Principle #3Local quality

3Reliability

If DFI feedback is always used for CG resources, then reliable delivery is achieved, but latency requirements for URLLC services cannot be met

Engineering Contradiction:
Improvedelivery reliabilityVSAvoidlatency
Core Design Contradiction:
ReliabilityVSLoss of time

Solution Approach 1:

The patent segments CG resources into two distinct types: type-1 CG resources for URLLC services that ignore DFI to ensure low latency, and type-2 CG resources for eMBB services that use DFI to ensure reliable delivery. This segmentation allows each resource type to be optimized for its specific service requirements without compromise.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

Different quality characteristics are applied to different CG resource types: type-1 resources have the quality characteristic of ignoring DFI feedback to minimize latency for URLLC, while type-2 resources have the quality characteristic of using DFI feedback to ensure reliable delivery for eMBB services.

Inventive Principle:
Principle #3Local quality

4Loss of time

If DFI feedback is never used for CG resources, then latency is minimized for URLLC services, but resource utilization efficiency deteriorates due to lack of feedback control

Engineering Contradiction:
ImprovelatencyVSAvoidresource utilization efficiency
Core Design Contradiction:
Loss of timeVSProductivity

Solution Approach 1:

The patent segments CG resources into two distinct types: type-1 CG resources for URLLC services that ignore DFI to ensure low latency, and type-2 CG resources for eMBB services that use DFI to ensure reliable delivery. This segmentation allows each resource type to be optimized for its specific service requirements without compromise.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

Different quality characteristics are applied to different CG resource types: type-1 resources have the quality characteristic of ignoring DFI feedback to minimize latency for URLLC, while type-2 resources have the quality characteristic of using DFI feedback to ensure reliable delivery for eMBB services.

Inventive Principle:
Principle #3Local quality

Data Source

PatentUS12501274B2Method for using configured grant resources, terminal device, and network device
Publication Date: 2025.12.16 GUANGDONG OPPO MOBILE TELECOMMUNICATIONS CORP LTD
  • US12501274B2 patent drawing
  • US12501274B2 patent drawing
  • US12501274B2 patent drawing

AI summary

A method for using configured grant (CG) resources, a terminal device, and a network device are provided in implementations of the disclosure. The method for using CG resources includes the following. In response to reception of downlink feedback information (DFI), for a type-2 CG resource, a terminal device uses the DFI.