Sidelink Management for Wireless Communication

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Solution Overview

Problem

Existing wireless communication systems face challenges in efficiently managing sidelinks, particularly in determining when a sidelink is inactive, of poor quality, or excessively unavailable, leading to unnecessary resource utilization and power consumption.

Innovation Solution

A method and apparatus for a user equipment (UE) to determine the status of a sidelink, including checking for inactivity, quality thresholds, and unavailability, and disabling the sidelink accordingly, as well as a base station adjusting relay procedures based on messages from UEs regarding sidelink releases.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If the sidelink is continuously monitored and maintained, then the reliability of communication is improved, but the power consumption and resource utilization increase

Engineering Contradiction:

Improvesidelink communication reliabilityVSAvoidUE power consumption

Core Design Contradiction:

ReliabilityVSUse of energy by moving object

Solution Approach 1:

The patent implements dynamic sidelink management where the UE continuously monitors sidelink status parameters (quality, availability, inactivity) and adjusts the sidelink state accordingly. The system transitions between active and inactive states based on real-time conditions, optimizing the balance between maintaining reliable communication and conserving power resources.

Inventive Principle:

Principle #15Dynamics

2Ease of operation

If the sidelink is maintained during inactivity, then the connection readiness is improved, but the resource utilization deteriorates

Engineering Contradiction:

Improveconnection readinessVSAvoidresource utilization

Core Design Contradiction:

Ease of operationVSQuantity of substance

Solution Approach 1:

The patent extracts and monitors specific status parameters (quality, availability, inactivity) from the sidelink connection and uses these to determine when to disable the sidelink. By taking out only the essential monitoring functions and disabling the full sidelink when parameters indicate inactivity, the system maintains connection readiness when needed while releasing resources during inactivity periods.

Inventive Principle:

Principle #2Taking out (Extraction)

3Reliability

If the sidelink quality threshold is strictly enforced, then the communication quality is improved, but the number of active sidelinks decreases

Engineering Contradiction:

Improvesidelink qualityVSAvoidnumber of active sidelinks

Core Design Contradiction:

ReliabilityVSProductivity

Solution Approach 1:

The patent changes the operational parameters of the sidelink based on monitored quality metrics. When the quality parameter falls below a threshold, the system modifies the sidelink state from active to inactive. This parameter-based control ensures that only sidelinks meeting quality requirements remain active, maintaining communication quality while preventing degradation of inactive connections.

Inventive Principle:

Principle #35Parameter changes

Data Source

PatentUS12302367B2Link management for sidelink

Publication Date: 2025.05.13 QUALCOMM INC

AI summary

Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may determine whether a sidelink to another UE is inactive, and disable the sidelink based at least in part on determining that the sidelink is inactive. Numerous other aspects are provided.