Multi-Carrier Sidelink Communication Capability Filtering

Solution Overview

Problem

Existing wireless communication systems face challenges in efficiently managing sidelink communication due to varying reception capabilities among devices, leading to unnecessary data transmission to destinations that cannot receive the data, which increases latency and resource inefficiency.

Innovation Solution

A method and device for performing wireless communication that involves obtaining information on reception capability, excluding destinations without reception capability, selecting a logical channel with the highest priority, and allocating resources to the selected destination.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If data is transmitted to all destinations without checking reception capability, then communication coverage is maximized, but resource waste and latency increase due to transmissions to incapable destinations

Engineering Contradiction:

Improvecommunication reliabilityVSAvoidtransmission latency

Core Design Contradiction:

ReliabilityVSLoss of time

Solution Approach 1:

The transmitting device performs preliminary capability verification by obtaining reception capability information from each destination before initiating data transmission. This preliminary action filters out incapable destinations in advance, ensuring that subsequent transmissions are directed only to capable destinations, thereby eliminating wasted transmission time and reducing overall latency.

Inventive Principle:

Principle #10Preliminary action

Solution Approach 2:

The system implements a feedback mechanism where destination devices provide their reception capability information back to the transmitting device. This feedback loop enables the transmitting device to make informed decisions about transmission targets, avoiding transmissions to incapable destinations and thus reducing unnecessary latency while maintaining reliable communication.

Inventive Principle:

Principle #23Feedback

2Reliability

If data is transmitted to all destinations without checking reception capability, then communication coverage is maximized, but resource allocation efficiency deteriorates due to unnecessary transmissions

Engineering Contradiction:

Improvecommunication reliabilityVSAvoidresource allocation efficiency

Core Design Contradiction:

ReliabilityVSProductivity

Solution Approach 1:

The transmitting device performs preliminary capability verification by obtaining reception capability information from each destination before initiating data transmission. This preliminary action filters out incapable destinations in advance, ensuring that subsequent transmissions are directed only to capable destinations, thereby eliminating wasted transmission time and reducing overall latency.

Inventive Principle:

Principle #10Preliminary action

Solution Approach 2:

The system implements a feedback mechanism where destination devices provide their reception capability information back to the transmitting device. This feedback loop enables the transmitting device to make informed decisions about transmission targets, avoiding transmissions to incapable destinations and thus reducing unnecessary latency while maintaining reliable communication.

Inventive Principle:

Principle #23Feedback

3Productivity

If reception capability verification is performed before transmission, then resource allocation efficiency improves, but system complexity increases due to additional information management

Engineering Contradiction:

Improveresource allocation efficiencyVSAvoidsystem complexity

Core Design Contradiction:

ProductivityVSDevice complexity

Solution Approach 1:

The capability information management mechanism is designed to be universal and multi-functional. The same information structure serves multiple purposes: capability verification, transmission scheduling, and resource allocation optimization. This multi-functionality reduces the need for separate complex management systems, thereby limiting the increase in system complexity while still achieving improved resource allocation efficiency.

Inventive Principle:

Principle #6Universality (Multi-functionality)

Data Source

PatentUS20250317951A1Method and device for performing multi-carrier-based sidelink communication

Publication Date: 2025.10.09 LG ELECTRONICS INC

AI summary

A method by which a first device performs wireless communication, and a device for supporting same are provided. The method may comprise the steps of: acquiring information related to reception capability; determining at least one destination by excluding a destination that does not have the reception capability from among a plurality of destinations; selecting a destination having a logical channel with the highest priority from among logical channels having available sidelink (SL) data related to the at least one destination; and allocating a resource to the at least one channel belonging to the selected destination.