Base Station Handover Prediction for Wireless Connection Continuity

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Solution Overview

Problem

Control delays during handover processing between base stations can cause terminal apparatuses to move out of the connection range, leading to termination of wireless connections and requiring reconnection processing.

Innovation Solution

A first base station acquires mobility information related to the beam formed for wireless communication with terminal apparatuses and controls handover processing based on this information, predicting handover occurrences and initiating handover processing in advance to maintain continuous connections.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If handover processing is performed using conventional control signal communication between base stations, then handover can be completed, but control delay occurs causing terminal apparatus to move out of connection range before handover completion

Engineering Contradiction:

Improvewireless connection continuityVSAvoidhandover processing time

Core Design Contradiction:

ReliabilityVSLoss of time

Solution Approach 1:

The base station performs preliminary actions by acquiring mobility information (speed, direction, acceleration) of the terminal apparatus and predicting its future position. Based on this prediction, the base station proactively initiates handover processing before the terminal actually moves out of connection range, thereby avoiding connection termination while accounting for control delays in the system.

Inventive Principle:

Principle #10Preliminary action

2Stability of the object's composition

If handover processing is delayed to allow control signal communication, then connection stability is maintained, but terminal apparatus moves out of connection range causing reconnection processing to be required

Engineering Contradiction:

Improveconnection stabilityVSAvoidconnection continuity

Core Design Contradiction:

Stability of the object's compositionVSReliability

Solution Approach 1:

The system implements feedback by continuously monitoring the mobility information of the terminal apparatus and using this information to dynamically adjust handover timing decisions. The base station predicts future terminal position based on current mobility data and uses this prediction to determine the optimal moment to initiate handover, balancing connection stability with the need to prevent connection loss.

Inventive Principle:

Principle #23Feedback

Data Source

PatentUS10736007B2First base station, method, and non-transitory computer readable medium storing a program

Publication Date: 2020.08.04 NEC CORP

AI summary

To enable avoidance of termination of wireless connection between a base station and a terminal apparatus. A first base station (a base station 100A) comprises: an acquisition unit 141 configured to acquire mobility information on a terminal apparatus 200, the mobility information corresponding to information related to a beam formed for wireless communication with the terminal apparatus 200; and a control unit 143 configured to control processing related to handover for the terminal apparatus 200, based on the mobility information on the terminal apparatus 200.