SNPN Selection for Dual Access Across Public and Private Networks

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Solution Overview

Problem

Existing wireless communication systems do not support dual access via standalone non-public networks (SNPNs) for concurrent connectivity with public land mobile networks (PLMNs), limiting traffic steering, switching, and splitting capabilities.

Innovation Solution

User equipment (UE) is enabled to establish and maintain dual connections with both a PLMN and an SNPN, selecting an SNPN from a prioritized list that supports dual access, allowing simultaneous connections via two 3GPP networks for enhanced traffic management.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If a UE establishes dual connections via PLMN and SNPN, then traffic steering and capacity are improved, but network complexity and selection difficulty increase

Engineering Contradiction:
Improvetraffic steering capabilityVSAvoidnetwork selection complexity
Core Design Contradiction:
ProductivityVSDevice complexity

Solution Approach 1:

The network provides prioritized lists of SNPNs to the UE in advance, containing identifiers and priority information. This preliminary provision of selection criteria enables the UE to automatically select appropriate SNPNs without complex real-time decision-making, thus improving traffic steering capability while keeping the selection process simple.

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The system implements feedback mechanisms where the network monitors UE connection status and performance metrics, then adjusts prioritized lists dynamically. This feedback loop ensures that the UE can maintain optimal dual connections while the network manages the complexity of selection and reconfiguration based on current conditions.

Inventive Principle:
Principle #23Feedback

2Ease of operation

If prioritized lists of SNPNs are provided to UE, then network selection is simplified, but information overhead increases

Engineering Contradiction:
ImproveSNPN selection easeVSAvoidinformation overhead
Core Design Contradiction:
Ease of operationVSQuantity of substance

Solution Approach 1:

The patent extracts only the essential selection criteria from the complete network information - specifically SNPN identifiers, priority values, and basic accessibility indicators. By providing only these extracted key elements in prioritized lists rather than complete network configurations, the system simplifies UE selection operations while minimizing information overhead.

Inventive Principle:
Principle #2Taking out (Extraction)

Solution Approach 2:

The network provides prioritized lists that contain more SNPN options than the UE will ultimately connect to (excessive action), but each list entry contains only partial information necessary for selection rather than complete configuration data. This approach enables easy selection while keeping per-message overhead low, as the UE uses these lists for selection but retrieves full configuration only when needed.

Inventive Principle:
Principle #16Partial or excessive action

3Productivity

If dual wireless connections are established, then data rates and capacity increase, but connection management complexity increases

Engineering Contradiction:
Improvedata rateVSAvoidconnection management complexity
Core Design Contradiction:
ProductivityVSDevice complexity

Solution Approach 1:

The patent introduces the prioritized lists as an intermediary structure that mediates between the network's dual connection management and the UE's connection establishment. These lists pre-organize SNPN selection criteria, allowing the UE to automatically manage dual connections without complex real-time decision-making, thus enabling high data rates while keeping connection management simple through the intermediary prioritized list structure.

Inventive Principle:
Principle #24Intermediary (Mediator)

Data Source

PatentUS20250351210A1Standalone non-public network selection for dual access of a network
Publication Date: 2025.11.13 QUALCOMM INC
  • US20250351210A1 patent drawing
  • US20250351210A1 patent drawing
  • US20250351210A1 patent drawing

AI summary

Method and devices for wireless communications are described. A user equipment, UE, establishes (1005) a first wireless connection with a network via a public land mobile network, PLMN. The UE selects (1010) a standalone non-public network, SNPN, for establishment of a dual wireless connection between the UE and the network from a set of SNPNs associated with dual access of the network. In some examples, the UE selects the SNPN from one or more prioritized lists that include or indicate SNPNs that support dual access of the network via the PLMN and one of the SNPNs. The UE establishes (1015) a second wireless connection with the network via the selected SNPN to establish the dual wireless connection with the first network.