NTN Cell Measurement Control via Pre-configured Reporting

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Solution Overview

Problem

In non-terrestrial networks, the long distance between user equipment (LTE) and base stations, such as satellites, leads to unnecessary delays in cell measurement and reporting, necessitating a separate protocol for efficient communication.

Innovation Solution

A method and apparatus for controlling cell measurement or cell measurement reports in non-terrestrial networks by receiving configuration information from a base station, determining whether to perform the measurement or report based on this information, and managing the operation accordingly.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If multiple beam-related technologies are applied in non-terrestrial networks, then communication coverage and service efficiency are improved, but unnecessary delay occurs in cell measurement and cell measurement report

Engineering Contradiction:

Improvecommunication service efficiencyVSAvoidcell measurement delay

Core Design Contradiction:

ProductivityVSLoss of time

Solution Approach 1:

The patent applies preliminary action by having the network side pre-configure measurement reporting parameters and thresholds before the UE performs cell measurements. The UE is provided with measurement configuration information including reporting thresholds and parameters in advance, allowing it to efficiently determine whether to perform measurements and report results without real-time network intervention, thereby reducing measurement delays while maintaining communication service efficiency

Inventive Principle:

Principle #10Preliminary action

Solution Approach 2:

The patent implements dynamics by enabling adaptive measurement reporting where the UE dynamically adjusts its measurement and reporting behavior based on configured thresholds and conditions. The measurement reporting mechanism is dynamic rather than static, allowing the UE to selectively report measurements only when they meet predefined criteria, optimizing the balance between measurement accuracy and reporting delay in non-terrestrial networks

Inventive Principle:

Principle #15Dynamics

2Reliability

If frequent cell measurement and reporting operations are performed in non-terrestrial networks, then communication reliability is improved, but power consumption increases

Engineering Contradiction:

Improvecommunication reliabilityVSAvoidpower consumption

Core Design Contradiction:

ReliabilityVSUse of energy by moving object

Solution Approach 1:

The patent applies parameter changes by configuring measurement reporting thresholds and parameters that optimize the balance between reliability and power consumption. The network provides specific measurement thresholds and reporting parameters that allow the UE to perform measurements selectively based on changing conditions, ensuring communication reliability while avoiding unnecessary measurements that would increase power consumption in non-terrestrial networks

Inventive Principle:

Principle #35Parameter changes

Data Source

PatentEP3910993B1Method for communicating through non-terrestrial network, and apparatus therefor

Publication Date: 2024.02.21 KT CORP

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AI summary

Disclosed is a technique for enabling a terminal and a base station to communicate through a non-terrestrial network. A method of a terminal for communicating through a non-terrestrial network (NTN) includes the steps of: receiving, from a base station, configuration information for controlling cell measurement or cell measurement reporting in the NTN; determining whether to perform cell measurement or cell measurement reporting by using the configuration information; and controlling a cell measurement or cell measurement reporting operation according to the determination result.