V2V Transmission Resource Selection Avoiding Blind Areas
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Solution Overview
Problem
In vehicle-to-vehicle (V2V) communications systems, vehicles randomly selecting transmission resources can lead to a high probability of collisions, as they may not effectively find each other, increasing the likelihood of accidents.
Innovation Solution
A method and device that determine a transmission resource by receiving status information from all devices in a region, identifying idle resources, and selecting a resource that is not a blind area resource for adjacent devices, ensuring that vehicles communicate without entering a blind area, thereby reducing collision probability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If vehicles randomly select transmission resources, then resource selection is simple and flexible, but collision probability increases and vehicles cannot reliably find each other
Solution Approach 1:
The patent applies preliminary action by having vehicles perform resource selection in advance based on predicted trajectories and blind area information. Before actual transmission, vehicles determine which resources will be blind area resources for adjacent vehicles and exclude them from selection. This advance planning ensures reliable vehicle detection while maintaining operational simplicity, as the complex analysis is done beforehand rather than in real-time during transmission decisions.
2Productivity
If vehicles use the same transmission resource, then resource utilization is efficient, but adjacent vehicles cannot detect each other due to blind areas
Solution Approach 1:
The patent applies local quality by making the resource selection process location-dependent. Instead of uniformly allowing any vehicle to use any resource, the system determines blind area resources specifically for each vehicle based on its location, trajectory, and adjacent vehicles. Each vehicle has a customized set of prohibited resources tailored to its local spatial context, ensuring that while resources are efficiently utilized overall, no vehicle selects a resource that would place it in another vehicle's blind area.
3Measurement precision
If vehicles send periodic signals frequently, then detection accuracy improves, but resource consumption and collision probability increase
Solution Approach 1:
The patent applies dynamics by making the transmission resource selection adaptive to changing vehicle trajectories and spatial relationships. Rather than using static resource assignments or fixed periodic transmissions, the system dynamically determines blind area resources based on current and predicted vehicle positions. This allows vehicles to maintain accurate detection through periodic signaling while optimizing resource usage, as the dynamic analysis identifies and excludes only the specific resources that would cause blind area conflicts, rather than reducing transmission frequency overall.
Data Source
AI summary
The present invention provides a transmission resource determining method and a related device. The method includes: receiving, by a first device, status information sent by all devices in a region; determining, by the first device, an idle resource in a resource pool according to a transmission pattern and resources in the resource pool that are used when all the devices in the region send the status information; and determining, by the first device according to a first rule, a first transmission resource from the idle resource as a resource for sending status information of the first device.