Terminal Device Connection Destination Selection Using History Data
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Solution Overview
Problem
In 5G communication systems, terminal devices face challenges in efficiently selecting optimal connection destinations due to high processing loads on base stations, leading to unnecessary handovers, increased power consumption, and reduced system processing capacity.
Innovation Solution
A terminal device equipped with a location information acquisition unit and storage to accumulate history information on past communication status, allowing it to narrow down connection destinations for quality measurement based on communication times and other factors, thereby reducing the processing load on base stations and minimizing handovers.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If the base station provides reference information for connection destination selection, then the terminal device can select optimal connection destinations, but the base station processing load increases
Solution Approach 1:
The terminal device autonomously performs connection destination selection by acquiring history information, analyzing communication quality, and determining optimal destinations without base station intervention. This transfers the selection function from base station to terminal, reducing base station processing load while maintaining selection accuracy through the terminal's autonomous decision-making capabilities
Solution Approach 2:
The terminal device pre-acquires and stores history information about connection destinations before actual connection selection is needed. This preliminary data collection enables faster, more accurate real-time selection decisions without requiring base station processing during critical connection moments
2Reliability
If communication quality measurement is performed on all connection destination candidates, then optimal connection can be ensured, but system processing capacity decreases and power consumption increases
Solution Approach 1:
The terminal device segments the set of all connection destination candidates into two groups: those requiring communication quality measurement and those that can be excluded based on history information analysis. This segmentation allows selective measurement on only necessary candidates, reducing overall processing requirements while maintaining reliable connection selection
Solution Approach 2:
Instead of performing communication quality measurement on all possible connection destinations, the terminal performs partial measurement only on a subset of candidates identified as potentially optimal through history information analysis. This partial action approach reduces processing load and power consumption while still ensuring optimal connection selection
3Reliability
If communication quality measurement is performed on all connection destination candidates, then optimal connection can be ensured, but power consumption of the terminal device increases
Solution Approach 1:
The terminal device segments connection destination candidates into measurable and non-measurable groups based on history information, performing power-intensive communication quality measurements only on the necessary subset. This segmentation dramatically reduces total power consumption while maintaining connection quality through selective measurement of only promising candidates
4Productivity
If narrow down connection destinations for measurement, then processing capacity increases and power consumption decreases, but selection accuracy may be compromised
Solution Approach 1:
The terminal device performs preliminary analysis of history information to pre-identify promising connection destination candidates before narrowing down the measurement set. This preliminary action ensures that the reduced set of candidates for measurement still contains the optimal destination, maintaining selection accuracy while enabling processing capacity improvements
Solution Approach 2:
The terminal device uses feedback from history information about past communication quality and performance to guide the selection of candidates for measurement. This feedback mechanism ensures that the narrowed-down set focuses on destinations with demonstrated potential, maintaining accuracy while reducing the number of measurements required
Data Source
AI summary
A terminal device is provided and includes a location information acquisition device configured to acquire location information including a location of the terminal device, a storage configured to accumulate history information on past communication status including a communication time of the terminal device at each location, and a controller configured to acquire the history information for a current location of the terminal device from the storage based on the location information, to extract one or more connection destinations as targets of communication quality measurement from connection destination candidates based on communication times for the connection destination candidates, and to measure communication quality levels of communications with the extracted connection destinations.