Automated Driving Base Station Handover Control
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing driving assist systems face challenges in maintaining continuous communication connections, particularly during handovers of base stations when vehicles travel across areas covered by different communication carriers, leading to potential communication interruptions.
Innovation Solution
A driving assist system that includes multiple base stations and processors to monitor and manage communication quality between an automated driving vehicle and adjacent base stations, allowing for seamless switching between them based on connection status and reconnection time to prevent interruptions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If the automated driving vehicle switches between base stations during communication, then communication coverage is extended, but communication interruptions may occur during handover
Solution Approach 1:
The system performs preliminary actions by evaluating communication quality indicators (signal strength, interference level, bit error rate) of adjacent base stations before the current base station becomes unsuitable. This allows the vehicle to proactively prepare for handover by identifying candidate base stations and assessing their readiness, thereby preventing communication interruptions during the switching process
Solution Approach 2:
The system continuously monitors communication quality parameters (signal strength, interference, bit error rate) and uses this feedback to dynamically adjust handover decisions. By implementing feedback mechanisms that track communication status in real-time, the system can respond to deteriorating conditions and execute handovers at optimal moments, ensuring seamless transitions between base stations
2Reliability
If multiple base stations are monitored and evaluated for switching, then communication reliability is improved, but system complexity increases
Solution Approach 1:
The system applies local quality by evaluating specific communication parameters (signal strength, interference level, bit error rate) for each adjacent base station individually rather than treating all base stations uniformly. This allows the system to identify the most suitable candidate for handover based on localized communication conditions, improving reliability while managing complexity through targeted assessment
Solution Approach 2:
The system manages complexity by monitoring and comparing specific communication parameters (signal strength, interference, bit error rate) rather than all possible base station attributes. By focusing on critical parameters that directly impact communication quality, the system achieves reliable handover decisions without overwhelming computational complexity
3Reliability
If handover switching is performed frequently to maintain communication quality, then communication reliability is improved, but loss of time occurs during each switching operation
Solution Approach 1:
The system performs preliminary evaluation of adjacent base stations' communication quality indicators before handover is needed. By pre-assessing signal strength, interference levels, and bit error rates of candidate base stations, the system minimizes the time required during actual handover execution, reducing time loss while maintaining communication reliability
Solution Approach 2:
The system implements efficient handover protocols that rush through the switching process by utilizing pre-evaluated candidate base stations. When handover is determined to be necessary, the system quickly executes the switch to a pre-identified suitable base station, minimizing the time lost during the actual transition while maintaining communication quality
Data Source
AI summary
A driving assist system includes a plurality of base stations and a processor. The base stations are configured to be connected to an automated driving vehicle. The processor is configured to transmit, to the automated driving vehicle and based on a quality of communication between a first base station and the automated driving vehicle and a quality of communication between a second base station and the automated driving vehicle, a switching request of switching from the first base station to the second base station. The first base station is one of the base stations to which the automated driving vehicle is connected. The second base station is another one of the base stations and adjacent to the first base station, and is a candidate of the switching from the first base station.