Vehicle Antenna Directivity Control for 5G Communication
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current communication systems face challenges in improving communication quality between a vehicle and other devices in a 5G communication system, particularly in adjusting antenna directivity and sensitivity effectively for optimal communication.
Innovation Solution
A communication system that includes an acquirer to determine the destination and a communicator to adjust the antenna's directivity and sensitivity based on the vehicle's position relative to the destination, increasing directivity and sensitivity as the vehicle approaches the destination and decreasing it when close, to enhance communication quality.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the antenna directivity is increased in the direction to the destination, then the communication quality is improved, but the reception sensitivity in other directions deteriorates
Solution Approach 1:
The antenna directivity is made dynamically adjustable based on the vehicle's destination and position. The communication device changes the antenna's directivity characteristics in real-time as the vehicle approaches the destination, transitioning from high directivity (when far) to low directivity (when close), thereby resolving the contradiction between communication quality and reception sensitivity in different directions.
Solution Approach 2:
The patent changes the antenna's directivity parameter according to the distance to the destination. When the distance is large, high directivity is set for better communication quality; when the distance is small, low directivity is set to maintain reception sensitivity. This parameter adjustment resolves the technical contradiction by adapting the antenna characteristics to the specific operational context.
2Reliability
If the antenna directivity is increased to improve communication quality, then the communication reliability improves, but the device complexity increases
Solution Approach 1:
The communication device uses feedback from the position information and destination data to automatically adjust the antenna directivity. The system receives position information, calculates the distance to the destination, and based on this feedback, determines the appropriate directivity level. This automated feedback mechanism improves communication reliability without significantly increasing device complexity.
Solution Approach 2:
The antenna system performs self-adjustment based on the vehicle's position and destination information. The communication device autonomously determines when to switch between high and low directivity modes without requiring manual intervention or complex external control systems, thereby maintaining communication reliability while minimizing added complexity.
Data Source
AI summary
A communication system is a communication system provided in a mobile body and including an acquirer configured to acquire a destination of the mobile body, and a communicator configured to communicate with a communication device outside the mobile body using an antenna, in which the communicator is configured to increase directivity of the antenna in a direction from a position of the mobile body to the destination when the destination is acquired by the acquirer.