Mobile Base Station Control for Wireless Coverage Gaps
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Solution Overview
Problem
In wireless communication systems, particularly in remote driving and automated driving, there are areas where communication quality is insufficient due to factors like radio wave attenuation and resource congestion, leading to increased communication delay and poor service coverage.
Innovation Solution
A control device that acquires quality information and route information for mobile base stations, allowing it to specify areas with low communication quality and move these stations along predetermined routes to provide improved wireless communication services, ensuring high-quality connectivity in insufficient areas.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If mobile base stations are deployed to improve communication quality in insufficient areas, then communication quality and service coverage are improved, but device complexity and operational difficulty increase
Solution Approach 1:
The mobile base station autonomously determines its own movement to communication-insufficient areas by receiving quality information from terminal devices, specifying its own destination, and executing movement control without requiring complex external coordination systems. This self-service mechanism reduces overall system complexity while maintaining improved communication quality.
Solution Approach 2:
A communication management device acts as an intermediary between terminal devices and mobile base stations, coordinating the deployment process by receiving quality information from terminals, determining appropriate destination areas for mobile base stations, and transmitting movement control information. This intermediary approach simplifies the interaction complexity between multiple autonomous entities.
2Reliability
If mobile base stations are moved to areas with poor communication quality, then service coverage and communication reliability are improved, but communication delay increases due to movement time
Solution Approach 1:
The mobile base station pre-moves to communication-insufficient areas before terminal devices experience poor communication quality. The system receives quality information from terminals, specifies destination areas in advance, and executes movement control proactively, ensuring the mobile base station is already positioned when communication quality degrades, thereby minimizing actual communication delay.
Solution Approach 2:
The system continuously monitors communication quality through feedback from terminal devices and dynamically adjusts mobile base station positioning. When quality information indicates insufficient communication areas, the system triggers movement control to reposition mobile base stations, creating a closed-loop feedback mechanism that responds to actual communication conditions and minimizes delay.
3Area of stationary object
If multiple mobile base stations are deployed to cover large areas, then service coverage is improved, but resource congestion and operational complexity increase
Solution Approach 1:
Instead of uniformly deploying mobile base stations across large areas, the system targets specific communication-insufficient areas identified through quality information feedback from terminal devices. Mobile base stations are dynamically positioned only where needed, creating localized high-quality communication zones rather than uniform coverage, thereby reducing overall resource consumption while maintaining effective service coverage.
Solution Approach 2:
The mobile base station deployment is dynamic rather than static. Mobile base stations can be moved, repositioned, and redistributed based on real-time communication quality conditions and service demands. This dynamic allocation allows the system to cover large areas efficiently by concentrating resources in areas of need rather than maintaining fixed, uniformly distributed positions.
Data Source
AI summary
A control device acquires quality information indicating a correspondence relationship between a position and communication quality related to wireless communication at the position, and route information indicating a movement route of a mobile base station, specifies an area in which the communication quality is determined to be lower than a predetermined communication quality based on the quality information, and executes control for moving the mobile base station to a position at which a wireless communication service can be provided in at least a part of the area in a case where the position is included in the movement route based on the route information.