SNPN Network Selection Using HSP Subscription Priority Lists
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Solution Overview
Problem
Current wireless communication systems face challenges in network selection for standalone non-public networks (SNPNs), particularly in determining whether access is allowed using a home service provider (HSP) subscription, and in efficiently selecting the appropriate network when the HSP network identifier is not available.
Innovation Solution
The method involves receiving system information from base stations that share public land mobile networks (PLMNs) and SNPNs, using HSP subscription information to select a network from a priority list of candidate SNPNs, and switching to SNPN access mode when the HSP network identifier is not found, allowing access to SNPNs with supported credentials.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the UE uses HSP subscription to access SNPN, then network access security is improved, but network selection complexity increases when HSP network identifier is not available
Solution Approach 1:
The UE is pre-configured with a selection list of candidate SNPNs and their identifiers before network access. When the HSP network identifier is not available, the UE can immediately use this pre-prepared list to select from candidate networks without requiring complex real-time decision-making, thus reducing network selection complexity while maintaining security through controlled access options.
2Productivity
If the UE selects network based on priority order from selection list, then network selection efficiency is improved, but flexibility in accessing alternative networks is reduced
Solution Approach 1:
The network selection mechanism dynamically adapts based on available information. When HSP network identifier is available, the UE follows the priority-based selection list for efficient automated selection. When HSP network identifier is not available, the UE can manually select from the same selection list or attempt to access the HSP network directly, providing flexibility. The system transitions between automated priority-based selection and manual/alternative selection modes based on conditions.
3Measurement precision
If the system broadcasts detailed network identifier information, then network selection accuracy is improved, but information overhead and processing load increase
Solution Approach 1:
The patent extracts and separates critical network identifier information (SNPN identifiers and selection criteria) from the complete system information broadcast. The UE receives a condensed selection list containing only essential identifiers and priority information needed for network selection, rather than processing all detailed network parameters. This reduces information overhead and processing load while maintaining sufficient accuracy for network selection by focusing on the most relevant identification data.
Data Source
AI summary
Aspects of the disclosure provide methods and apparatuses. The method can include receiving, at a user equipment (UE), system information broadcast from one or more base stations which may be shared by one or more PLMNs and/or one or more SNPNs, the system information including an indication of whether accessing an SNPN using home service provider (HSP) subscription of a HSP network is supported. The UE can be configured with subscription information of the HSP network. The subscription information can include the HSP subscription and a selection list that includes one or more candidate networks each represented by an SNPN identifier. The method can further include responsive to the system information, selecting a network from the selection list according to a priority order of the candidate networks, and accessing the network selected from the selection list using the HSP subscription.