Configured Grant Sidelink Resource Selection Under Channel Occupancy Limits

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Solution Overview

Problem

Existing wireless communication systems face challenges in efficiently managing resource allocation and congestion control for configured grant sidelink communications, particularly in scenarios involving vehicle-to-everything (V2X) protocols, leading to inefficiencies and increased signaling overhead.

Innovation Solution

Implementing a method and apparatus for configured grant sidelink communications that involve receiving a configuration indicating a resource pool and a channel occupancy control parameter, allowing UEs to select and transmit using these resources based on the parameter, thereby optimizing resource usage and reducing congestion.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If traditional resource allocation methods are used for sidelink communications, then resource management is simple, but resource allocation efficiency is low and signaling overhead is high

Engineering Contradiction:

Improveresource allocation efficiencyVSAvoidresource management complexity

Core Design Contradiction:

ProductivityVSDevice complexity

Solution Approach 1:

The network configures UEs with resource pools and channel occupancy control parameters in advance before actual sidelink transmissions occur. This preliminary configuration allows UEs to autonomously select resources from pre-defined pools based on channel occupancy conditions, eliminating the need for dynamic network scheduling and reducing signaling overhead while improving resource allocation efficiency

Inventive Principle:

Principle #10Preliminary action

2Reliability

If configured grant sidelink communications are implemented without channel occupancy control, then resource allocation is simple, but channel congestion increases

Engineering Contradiction:

Improvecongestion controlVSAvoidparameter configuration

Core Design Contradiction:

ReliabilityVSDevice complexity

Solution Approach 1:

The patent introduces channel occupancy control parameters (such as channel occupancy ratio thresholds and maximum channel occupancy ratios) as configurable parameters that change UE behavior based on channel conditions. These parameters enable UEs to adapt their resource selection and transmission decisions dynamically, providing congestion control without requiring complex centralized management

Inventive Principle:

Principle #35Parameter changes

3Adaptability or versatility

If dynamic resource scheduling is used for sidelink, then resource allocation is flexible, but signaling overhead increases

Engineering Contradiction:

Improveresource allocation flexibilityVSAvoidsignaling overhead

Core Design Contradiction:

Adaptability or versatilityVSLoss of information

Solution Approach 1:

The patent enables UEs to autonomously select resources from pre-configured resource pools based on channel occupancy conditions and control parameters. This self-service mechanism allows flexible adaptation to changing channel conditions without requiring continuous network intervention or dynamic scheduling commands, thereby maintaining adaptability while significantly reducing signaling overhead

Inventive Principle:

Principle #25Self-service

Data Source

PatentEP4186300B1Configured grant sidelink communications

Publication Date: 2026.01.07 QUALCOMM INC

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AI summary

Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment may receive a configuration (615) indicating a resource pool and a channel occupancy control parameter for configured grant sidelink communications, select (625) one or more resources from the resource pool based at least in part on the channel occupancy control parameter, and transmit (630) a configured grant sidelink communication using the one or more resources from the resource pool. Numerous other aspects are provided.