Sidelink Coordination Resource Selection for Collision Avoidance

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Solution Overview

Problem

Existing wireless communication systems face challenges in efficiently selecting resources for sidelink coordination information reports, leading to potential collisions and reduced performance.

Innovation Solution

A user equipment (UE) is configured to receive a configuration of resources for sidelink coordination information reports and to transmit these reports in selected resources, using techniques such as random selection, indexing based on UE identifiers, or virtual coordination requests to minimize collisions.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If resources are allocated for sidelink coordination information reports, then report transmission capability is improved, but resource collisions increase

Engineering Contradiction:

Improvereport transmission capabilityVSAvoidresource collisions

Core Design Contradiction:

ReliabilityVSObject-affected harmful factors

Solution Approach 1:

The resource pool is divided into multiple individual resources that can be independently selected and assigned to different UEs for coordination information reports, allowing for distributed access and collision avoidance

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

Resources are pre-configured and pre-selected from the resource pool before report transmission occurs. The UE determines which resource to use in advance based on UE identifiers and resource indices, preventing collisions before they happen

Inventive Principle:

Principle #10Preliminary action

2Reliability

If more resources are allocated for coordination reports, then report reliability is improved, but wireless resource consumption increases

Engineering Contradiction:

Improvereport transmission reliabilityVSAvoidwireless resource consumption

Core Design Contradiction:

ReliabilityVSQuantity of substance

Solution Approach 1:

The system dynamically adjusts resource allocation parameters including the size of the resource pool, the number of available resources, and the resource selection indices based on traffic conditions and UE identifiers, optimizing the balance between reliability and resource efficiency

Inventive Principle:

Principle #35Parameter changes

3Reliability

If resource selection complexity is increased to avoid collisions, then report reliability is improved, but UE processing complexity increases

Engineering Contradiction:

Improvecollision avoidance capabilityVSAvoidresource selection complexity

Core Design Contradiction:

ReliabilityVSDevice complexity

Solution Approach 1:

Each UE autonomously selects its own resource from the pool using its unique UE identifier and a predefined indexing mechanism. This self-service approach eliminates the need for complex centralized scheduling while ensuring collision-free resource allocation

Inventive Principle:

Principle #25Self-service

Solution Approach 2:

The system uses UE identifiers as feedback inputs to determine resource selection indices, creating a deterministic mapping between UE identity and resource choice that simplifies the selection process while maintaining reliability

Inventive Principle:

Principle #23Feedback

Data Source

PatentUS20250203581A1Resource selection for sidelink coordination information report messages

Publication Date: 2025.06.19 QUALCOMM INC

AI summary

Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive a configuration of a set of resources for sidelink coordination information reports. The UE may transmit a sidelink coordination information report message in at least one resource selected from the set of resources for sidelink coordination information reports. Numerous other aspects are provided.