Terminal Network Selection Across Multiple Non-Public Networks

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Solution Overview

Problem

Existing technologies do not specify how a terminal device should operate when residing in multiple non-public networks (NPNs) or interacting with multiple service providers (SPs).

Innovation Solution

A network selection method is provided where a terminal device determines a non-public network and service provider by using system broadcast messages, non-access layer signaling, or signature information to make informed decisions.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If multiple non-public networks and service providers are provided, then network coverage and service options are improved, but it becomes unclear how the terminal device should perform operations

Engineering Contradiction:

Improvenetwork coverageVSAvoidoperation clarity

Core Design Contradiction:

Adaptability or versatilityVSEase of operation

Solution Approach 1:

The terminal device autonomously determines which non-public network to reside in and which service provider to use by itself, without requiring manual configuration or external guidance. The device uses received information (system broadcast messages, non-access layer signaling, or signature information) to independently make network selection decisions, thereby resolving the operational uncertainty while maintaining multiple network options available

Inventive Principle:

Principle #25Self-service

Solution Approach 2:

The network device performs preliminary action by sending system broadcast messages, non-access layer signaling, or signature information to the terminal device in advance. This pre-provides the terminal device with the necessary information about available non-public networks and service providers, enabling the terminal to make informed selection decisions before actual network connection is established

Inventive Principle:

Principle #10Preliminary action

2Adaptability or versatility

If the terminal device autonomously selects networks and service providers, then operational flexibility is improved, but selection accuracy may deteriorate without guidance information

Engineering Contradiction:

Improveselection flexibilityVSAvoidselection accuracy

Core Design Contradiction:

Adaptability or versatilityVSMeasurement precision

Solution Approach 1:

The network device provides feedback information to the terminal device through system broadcast messages, non-access layer signaling, or signature information. This feedback includes identification information of available non-public networks and service providers, which guides the terminal device's autonomous selection process, thereby maintaining both flexibility and accuracy in network selection

Inventive Principle:

Principle #23Feedback

Solution Approach 2:

System broadcast messages, non-access layer signaling, and signature information act as intermediaries between the network device and terminal device. These intermediary elements carry essential information about available networks and service providers, enabling accurate matching between terminal device requirements and available network options without direct complex interaction

Inventive Principle:

Principle #24Intermediary (Mediator)

Data Source

PatentUS12477447B2Network selection methods, electronic device and storage medium

Publication Date: 2025.11.18 GUANGDONG OPPO MOBILE TELECOMMUNICATIONS CORP LTD

AI summary

Disclosed is a network selection method, comprising: a terminal device determining, from among at least one non-public network, a non-public network to reside in; and the terminal device determining, from among at least one service provider, a service provider for providing a service. Further disclosed are the other network selection method, and electronic device and a storage medium.