Sidelink Vehicle Grouping for Fair Road Section Entry Control
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Solution Overview
Problem
The challenge is to ensure smooth vehicle traffic in road control sections by grouping vehicles based on their waiting time and adjusting group sizes to provide equal driving opportunities for each direction.
Innovation Solution
A method is implemented where a first device transmits a signal requesting vehicles to wait, receives signals from vehicles indicating their waiting time, and groups vehicles that have been waiting for more than a threshold time. The device then transmits a signal allowing entry into the specific section based on the group size and whether group information is received from a second device.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If vehicles are controlled to wait individually without grouping, then each vehicle can be managed independently, but traffic flow efficiency decreases and waiting time increases
Solution Approach 1:
The patent combines multiple vehicles that have been waiting for more than a threshold time into a single group. This group is then controlled as one unit for entering the road control section, which improves traffic flow efficiency by allowing coordinated entry of multiple vehicles simultaneously, rather than processing them individually, thereby reducing overall waiting time and improving productivity.
2Productivity
If group size is increased to improve traffic flow, then fewer control signals are needed, but individual vehicle waiting opportunities may be reduced
Solution Approach 1:
The patent dynamically adjusts the group size based on the number of vehicles that have been waiting. The group is formed only when a specific number of vehicles (meeting the waiting time threshold) are available, and the control signal is transmitted when the group size reaches the required threshold. This dynamic approach ensures smooth traffic flow while maintaining fairness in driving opportunities.
Solution Approach 2:
The patent changes the parameter of group size based on real-time vehicle waiting conditions. By setting a threshold for the number of vehicles required to form a group, the system adapts the control strategy to current traffic conditions, ensuring both efficient traffic flow and equitable driving opportunities for vehicles in different directions.
3Productivity
If vehicles are grouped and controlled together, then traffic flow becomes smoother, but coordination complexity between control devices increases
Solution Approach 1:
The patent segments the control process into distinct phases: vehicle waiting monitoring, group formation based on threshold criteria, and coordinated signal transmission. This segmentation simplifies the coordination complexity by breaking down the complex control task into manageable steps, while still achieving smooth traffic flow through grouped vehicle control.
Data Source
AI summary
According to various embodiments, disclosed are a method for controlling vehicle driving at a particular interval by a first device in a wireless communication system supporting a sidelink, and a device therefor. Disclosed are the method and the device for the method, the method comprising the steps of: transmitting a first signal requesting standby for entrance to the particular interval; receiving a second signal in response to the first signal from each of multiple vehicles; and transmitting, on the basis of the second signal, a third signal for instructing entrance to the particular interval, wherein the first device groups vehicles, which have been on standby for entrance for a first threshold time or more, among the multiple vehicles, into a first group, on the basis of information on an entrance standby time point according to the first signal included in the second signal, and the third signal is transmitted to the first group on the basis of whether a group size of the first group is equal to or larger than a first threshold size and whether group information is received from a second device.