Terminal Device Destination Prediction for 5G Connection Optimization

Solution Overview

Problem

Current wireless communication systems, particularly in 5G networks with many small cells using high SHF bands, face inefficiencies in selecting optimal connection destinations due to the need for extensive control and quality measurements, leading to increased time and power consumption.

Innovation Solution

A terminal device equipped with a location information acquirer, moving state estimator, destination predictor, measurement target extractor, and communication quality measurer, which predicts a destination area based on the terminal's moving state and historical communication data to narrow down candidates for communication quality measurement, thereby optimizing the connection destination search operation.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If the terminal performs communication quality measurement on all candidate base stations, then the reliability of connection destination selection is improved, but the time required for connection establishment increases

Engineering Contradiction:

Improveconnection destination selection reliabilityVSAvoidconnection establishment time

Core Design Contradiction:

ReliabilityVSLoss of time

Solution Approach 1:

The terminal performs preliminary actions by predicting the destination area where the terminal is likely to move, and pre-identifying measurement target candidates in that area before actual connection establishment is needed. This allows the terminal to focus measurements on the most relevant base stations, reducing overall measurement time while maintaining selection reliability.

Inventive Principle:

Principle #10Preliminary action

Solution Approach 2:

The invention extracts and identifies a subset of measurement target candidates from all available base stations by using destination area prediction. Instead of measuring all candidate base stations, the terminal extracts only those in the predicted destination area, significantly reducing measurement overhead while maintaining connection reliability.

Inventive Principle:

Principle #2Taking out (Extraction)

2Reliability

If the terminal performs communication quality measurement on all candidate base stations, then the reliability of connection destination selection is improved, but the power consumption increases

Engineering Contradiction:

Improveconnection destination selection reliabilityVSAvoidterminal power consumption

Core Design Contradiction:

ReliabilityVSUse of energy by moving object

Solution Approach 1:

The terminal extracts and identifies a subset of measurement target candidates from all available base stations by using destination area prediction. Instead of measuring all candidate base stations, the terminal extracts only those in the predicted destination area, significantly reducing measurement overhead while maintaining connection reliability.

Inventive Principle:

Principle #2Taking out (Extraction)

Solution Approach 2:

The terminal performs preliminary actions by predicting the destination area where the terminal is likely to move, and pre-identifying measurement target candidates in that area before actual connection establishment is needed. This allows the terminal to focus measurements on the most relevant base stations, reducing overall measurement time while maintaining selection reliability.

Inventive Principle:

Principle #10Preliminary action

3Loss of time

If the terminal narrows down measurement target candidates, then the connection establishment time is reduced, but the measurement precision may deteriorate

Engineering Contradiction:

Improveconnection establishment timeVSAvoidcommunication quality measurement precision

Core Design Contradiction:

Loss of timeVSMeasurement precision

Solution Approach 1:

The invention applies local quality by focusing measurement resources on the destination area where the terminal is predicted to move. Instead of uniform measurement across all areas, the terminal concentrates measurement precision on the locally relevant base stations in the predicted destination area, ensuring high measurement quality where it matters most.

Inventive Principle:

Principle #3Local quality

Solution Approach 2:

The terminal performs preliminary actions by predicting the destination area where the terminal is likely to move, and pre-identifying measurement target candidates in that area before actual connection establishment is needed. This allows the terminal to focus measurements on the most relevant base stations, reducing overall measurement time while maintaining selection reliability.

Inventive Principle:

Principle #10Preliminary action

Data Source

PatentUS10721646B2Terminal device, communication system and communication control method

Publication Date: 2020.07.21 PANASONIC HOLDINGS CORP

AI summary

In order for a terminal to efficiently find an optimal connection destination based on a state of the terminal, the terminal includes: a location information acquirer configured to acquire the terminal's location information; an information storage configured to accumulate historical information on past communication statuses at respective locations within a communication area of the base station apparatus; a moving state estimator configured to estimate a moving state of the terminal based on the location information; a destination predictor configured to predict a destination area of the terminal based on the moving state; a measurement target extractor configured to extract one or more measurement target candidates as targets for communication quality measurement based on the historical information associated with the destination area; and a communication quality measurer configured to measure one or more communication qualities associated with the one or more measurement target candidates extracted by the measurement target extractor.