Communication Device Proactive Bandwidth Control via Location History
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Solution Overview
Problem
5G communication systems using high frequency bands face significant reductions in Quality of Experience (QoE) due to obstruction-related decreases in communication quality and variable available bandwidth, making it difficult to predict and avoid obstructed areas and rapid bandwidth changes.
Innovation Solution
A communication device equipped with a location information acquisition system, storage for historical obstruction and communication data, and a controller that determines the risk of quality degradation or bandwidth reduction based on this data, allowing for proactive changes in connection destinations or transmission rates to maintain optimal performance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If high frequency bands are used for 5G communication to achieve high transmission capacity, then communication bandwidth is improved, but communication quality deteriorates when obstacles are present on the path
Solution Approach 1:
The communication device performs preliminary actions by acquiring location information, determining risk degrees for connection destinations based on historical obstruction information, and proactively selecting connection destinations or adjusting transmission rates before actual obstruction occurs. This prevents communication quality degradation rather than reacting after the problem arises.
2Reliability
If pre-defined obstructed areas are used to avoid communication quality decrease, then communication reliability is improved, but the ability to handle dynamic obstacles deteriorates
Solution Approach 1:
The system transitions from static pre-defined obstructed areas to dynamic risk assessment. The controller determines risk degrees for connection destinations based on current location information and historical obstruction data, allowing the system to adapt to changing obstacle conditions and dynamic environments rather than relying on fixed geographic zones.
Solution Approach 2:
The communication device uses feedback from location information acquisition and historical obstruction information storage to continuously assess and determine risk degrees. This feedback loop enables the system to adapt to dynamic obstacle conditions by learning from past obstructions and adjusting connection destination selection in real-time.
3Reliability
If connection destination changes are made frequently to avoid obstruction, then communication quality is improved, but system complexity increases
Solution Approach 1:
Instead of frequently changing connection destinations, the system changes the parameter being evaluated (risk degree determination based on location and historical data). This allows the device to maintain simpler operation by adjusting assessment parameters rather than constantly reconfiguring connection topology.
Data Source
AI summary
A communication device includes a wireless communication device, a location information acquisition device, a storage and a controller. The wireless communication device wirelessly communicates with a base station used as a connection destination. The location information acquisition device acquires location information on a location of the communication device. The storage stores historical communication information on past communication status. The controller determines a degree of risk of occurrence of reduction in an amount of available communication bandwidth beyond a tolerance limit based on the historical communication information and the location information. The controller further controls a transmission rate for communicating the data based on a result of determination of the degree of risk.