Radio Terminal Resource Selection for V2X Delay Reduction

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Solution Overview

Problem

In V2X communication systems, the increasing number of radio terminals leads to delays due to repetitive resource pool setting processes, especially when transmitting urgent information, as existing technologies do not effectively manage radio resource selection to reduce delays.

Innovation Solution

A wireless communication system where radio terminals can detect urgent events and remove reserved radio resources from selection targets, allowing for immediate use of these resources for urgent communications, thereby reducing delays.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If radio terminals autonomously select resources through repetitive sensing processes, then resource allocation flexibility is improved, but communication delays increase

Engineering Contradiction:

Improveresource allocation flexibilityVSAvoidcommunication delay

Core Design Contradiction:

Adaptability or versatilityVSLoss of time

Solution Approach 1:

The patent pre-divides the resource pool into reserved regions before communication occurs. Terminals can directly select from these pre-defined regions without performing repetitive sensing procedures, thus reducing communication delay while maintaining resource allocation flexibility through the pre-configured reserved regions.

Inventive Principle:

Principle #10Preliminary action

Solution Approach 2:

The resource pool is segmented into multiple reserved regions with different priorities. This segmentation allows terminals to quickly select appropriate resources based on urgency levels without exhaustive sensing, resolving the contradiction between flexibility and delay by providing structured choice options.

Inventive Principle:

Principle #1Segmentation

2Measurement precision

If radio terminals perform complete sensing procedures before resource selection, then resource selection accuracy is improved, but processing time increases

Engineering Contradiction:

Improveresource selection accuracyVSAvoidprocessing time

Core Design Contradiction:

Measurement precisionVSLoss of time

Solution Approach 1:

Reserved regions are pre-configured and identified before terminals need to select resources. This preliminary organization of resources into priority-based regions eliminates the need for complete sensing procedures at selection time, reducing processing time while maintaining accuracy through pre-analyzed resource qualities.

Inventive Principle:

Principle #10Preliminary action

Solution Approach 2:

Different reserved regions are assigned different qualities or priorities based on pre-performed sensing and analysis. Terminals can directly select from regions with known good qualities without re-sensing, achieving accurate resource selection with reduced processing time by relying on pre-characterized local regions.

Inventive Principle:

Principle #3Local quality

Data Source

PatentUS11844049B2Terminal, wireless communication system, and base station for selecting a radio resource based on a result of sensing

Publication Date: 2023.12.12 1FINITY INC

AI summary

A terminal includes a controller and transmitter. The controller configured to select, based on a result of sensing, a radio resource for transmitting the signal. The transmitter configured to transmit a signal. When the controller detects a predetermined first event, the controller removes a radio resource belonging to a first reserved region from selection targets.