Communication System Interference Management via Duration-Based Control
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Solution Overview
Problem
There is a challenge in preventing interference between communication apparatuses, particularly when vehicles functioning as mobile base stations operate on overlapping frequency bands, which can disrupt wireless communication services.
Innovation Solution
A communication system that includes a frequency acquiring unit, a duration time acquiring unit, and a control unit within a wireless base station to determine if the frequency bands of approaching vehicles overlap, and if so, limits the transmission of radio signals based on communication duration times to prevent interference.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If vehicles function as mobile base stations on overlapping frequency bands, then wireless communication coverage is extended, but interference between communication apparatuses occurs
Solution Approach 1:
A management apparatus is introduced as an intermediary between mobile base stations (vehicles). The management apparatus receives information about frequency band usage from multiple vehicles, determines overlap conditions, and controls transmission to prevent interference. This mediator coordinates resource allocation without requiring direct complex interactions between the vehicles themselves.
Solution Approach 2:
The system implements feedback mechanisms where mobile base stations transmit information about their frequency band usage to the management apparatus. The management apparatus processes this feedback, determines interference conditions, and sends control signals back to adjust transmission parameters, creating a closed-loop control system for interference management.
2Reliability
If transmission power is increased to improve communication quality, then signal strength is improved, but interference with other communication apparatuses increases
Solution Approach 1:
The system dynamically adjusts transmission parameters (power, frequency band selection) based on the operational status and frequency usage of other mobile base stations. The management apparatus controls transmission parameters to optimize communication quality while avoiding frequency bands currently in use by nearby vehicles, thereby preventing interference.
Data Source
AI summary
Provided is a communication system, comprising: a duration time acquiring unit that acquires a first communication duration time, which is a communication duration time of a communication terminal in service of a first communication apparatus, and a second communication duration time, which is a communication duration time of a communication terminal in service of a second communication apparatus; a determining unit that determines whether or not a base station frequency band of the first communication apparatus and a base station frequency band of the second communication apparatus overlap; and a control unit that limits transmission of radio signals in the base station frequency band by the first communication apparatus or the second communication apparatus based on comparison between the first communication duration time and the second communication duration time when the determining unit determines that the base station frequency bands overlap.