Sidelink Resource Selection Using Shared Thresholds Across UE Modules

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Solution Overview

Problem

In sidelink communication systems, when multiple communication modules with different resource exclusion thresholds coexist, they can cause interference and collisions due to inconsistent resource selection, leading to suboptimal performance.

Innovation Solution

A UE is equipped with a first and second sidelink communication module that dynamically adjusts thresholds for resource exclusion by sharing threshold parameters, sensing information, and resource reservation information between modules to optimize resource selection.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If the first sidelink communication module uses a higher threshold for resource exclusion than the second sidelink communication module, then the first module can select more resources, but it may select resources that are occupied from the second module's perspective, causing interference and collisions

Engineering Contradiction:

Improveresource selection efficiencyVSAvoidinterference and collision avoidance

Core Design Contradiction:

ProductivityVSReliability

Solution Approach 1:

The patent implements a feedback mechanism where the first sidelink communication module receives sensing information and resource reservation information from the second module. This feedback loop allows the first module to adjust its resource exclusion decisions based on the second module's threshold parameters and sensed resource status, thereby avoiding collisions while maintaining high resource selection efficiency

Inventive Principle:

Principle #23Feedback

Solution Approach 2:

The first sidelink communication module dynamically adjusts its resource exclusion threshold parameter based on received information from the second module. By changing the threshold parameter adaptively rather than using a fixed high threshold, the system achieves both high productivity and reliability

Inventive Principle:

Principle #35Parameter changes

2Reliability

If the first sidelink communication module uses a lower threshold for resource selection than the second sidelink communication module, then the first module can avoid selecting occupied resources, but it may exclude resources that are actually available from the second module's perspective, reducing available candidate resources

Engineering Contradiction:

Improveresource occupation avoidanceVSAvoidavailable candidate resources

Core Design Contradiction:

ReliabilityVSProductivity

Solution Approach 1:

Instead of using a fixed low threshold, the first module dynamically adjusts its resource exclusion threshold based on the second module's threshold parameters and sensed resource status. This adaptive parameter change allows the system to maintain high reliability only when necessary, thereby preserving more candidate resources for selection

Inventive Principle:

Principle #35Parameter changes

Solution Approach 2:

The resource exclusion threshold is made dynamic rather than static. The first module adapts its threshold level based on real-time information from the second module, making the system flexible enough to balance between avoiding occupied resources and preserving available candidate resources

Inventive Principle:

Principle #15Dynamics

3Adaptability or versatility

If multiple sidelink communication modules with different thresholds operate independently, then each module can optimize its own resource selection, but interference and collisions occur due to inconsistent resource selection across modules

Engineering Contradiction:

Improvemodule independenceVSAvoidresource selection consistency

Core Design Contradiction:

Adaptability or versatilityVSReliability

Solution Approach 1:

The patent merges the resource selection processes of multiple sidelink communication modules by having them share sensing information and resource reservation information. This combination allows independent modules to achieve consistent resource selection decisions, resolving the contradiction between module independence and selection consistency

Inventive Principle:

Principle #5Merging (Combining)

Solution Approach 2:

Sensing information and resource reservation information act as intermediaries between the first and second sidelink communication modules. These intermediaries enable the modules to coordinate their resource selection decisions without sacrificing their operational independence, thereby achieving both adaptability and consistency

Inventive Principle:

Principle #24Intermediary (Mediator)

Data Source

PatentUS20260052556A1Methods and apparatuses for coexistence of sidelink communications

Publication Date: 2026.02.19 TOYOTA JIDOSHA KK

AI summary

Disclosed are methods, apparatuses, and systems for resource selection for a user equipment (UE) in a first sidelink communication. The method includes: determining, by a first sidelink communication module, a selection window; setting at least one first threshold parameter for a resource exclusion at the first sidelink communication module; initializing a candidate resource set; receiving, from a second sidelink communication module, at least one of: at least one second threshold parameter used for a resource exclusion at the second sidelink communication module, sidelink sensing information obtained by the second sidelink communication module, or resource reservation information collected by the second sidelink communication module; determining one or more final candidate resources in the first sidelink communication using the at least one first threshold parameter and the at least one information received from the second sidelink communication module; and reporting the determined one or more final candidate resources to a higher layer.