Terminal Network Selection by Mode for Hosting NPN and PLMN Prioritization

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Solution Overview

Problem

The challenge of efficiently selecting a network from multiple available types, including hosting non-public networks (NPN), normal NPNs, and public land mobile networks (PLMN), particularly in scenarios where non-public networks have specific time and place restrictions, is unresolved in existing communication technologies.

Innovation Solution

A network selection method and apparatus that allows a terminal to select a target network based on a network selection mode, prioritizing hosting NPNs or PLMNs based on availability and validity conditions, enabling efficient network switching and reducing complexity.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If multiple types of networks (hosting NPN, normal NPN, PLMN) are made available simultaneously, then network coverage and service availability are improved, but network selection complexity increases

Engineering Contradiction:

Improvenetwork coverageVSAvoidnetwork selection complexity

Core Design Contradiction:

Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The network selection process is segmented into distinct priority levels: first determining whether to select an NPN or PLMN based on mode, then separately determining specific network identity. This segmentation breaks down the complex multi-network selection into manageable stages, reducing overall selection complexity while maintaining support for multiple network types.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The terminal performs preliminary determination of the network type (NPN vs PLMN) based on selection mode before finalizing the specific network identity. This preliminary action simplifies the subsequent selection process by narrowing down the search space and establishing a clear decision hierarchy.

Inventive Principle:

Principle #10Preliminary action

2Adaptability or versatility

If hosting NPNs with specific time and place restrictions are implemented, then private network services are improved, but network selection difficulty increases

Engineering Contradiction:

Improveprivate network serviceVSAvoidnetwork selection difficulty

Core Design Contradiction:

Adaptability or versatilityVSDifficulty of detecting and measuring

Solution Approach 1:

The network selection mechanism dynamically adapts to different operational modes (normal mode vs. hosting mode) and adjusts selection criteria accordingly. In hosting mode, the terminal prioritizes hosting NPNs with specific time-place restrictions; in normal mode, it selects from available NPNs or PLMNs. This dynamic adaptation simplifies the detection process by providing clear mode-based selection rules.

Inventive Principle:

Principle #15Dynamics

Solution Approach 2:

The selection parameters change based on the determined mode: in hosting mode, the terminal looks for specific hosting NPN parameters (time restrictions, place restrictions); in normal mode, it uses general NPN/PLMN availability parameters. This parameter transformation makes network detection easier by matching search criteria to operational context.

Inventive Principle:

Principle #35Parameter changes

Data Source

PatentUS20250247778A1Network Selection Method and Terminal

Publication Date: 2025.07.31 VIVO MOBILE COMM CO LTD

AI summary

A network selection method includes selecting, by a terminal, a target network as a to-be-accessed network based on a network selection mode, where the target network includes any one of the following: a hosting NPN, a normal NPN, or a PLMN.