NPN SIB1 Validity Check for Accurate UE Network Identification
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing wireless communication systems face challenges in validating the integrity of system information blocks (SIBs) in non-public networks (NPNs), leading to potential misuse or confusion between network identifiers, which can result in unwanted emissions and regulatory violations.
Innovation Solution
Implementing a validity check mechanism in user equipment (UE) to verify that the NPN-identifier (NPN-ID) in received SIB1 matches a stored SIB, preventing the storage of invalid SIBs, especially for standalone NPNs with locally managed network identifiers, by using specific identifiers and indicators in the SIB1.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a validity check mechanism is implemented to verify NPN-ID matching between received SIB1 and stored SIB, then the reliability of network identification is improved, but the device complexity increases due to additional validation steps
Solution Approach 1:
The patent stores the NPN-ID from SIB1 in advance during initial network registration. When the UE receives a new SIB1, it performs a validity check by comparing the NPN-ID against the stored value. This preliminary storage action enables快速 validation without complex real-time verification mechanisms, resolving the contradiction between reliability improvement and device complexity.
2Reliability
If the UE performs comprehensive SIB validation including NPN-ID matching, then the regulatory compliance is improved, but the time required for system information acquisition increases
Solution Approach 1:
The NPN-ID is stored in advance during initial network registration, enabling rapid validity checks during subsequent SIB acquisitions. This preliminary storage allows the UE to quickly verify compliance without performing comprehensive validation each time, thus maintaining regulatory compliance while minimizing time loss for system information acquisition.
3Measurement precision
If the UE stores and validates SIB information for NPNs, then the precision of network identification is improved, but the loss of time for SIB acquisition increases due to validation overhead
Solution Approach 1:
The patent stores the NPN-ID from SIB1 in advance during initial network registration. This preliminary storage action enables rapid validity checks during subsequent SIB acquisitions by simply comparing the received NPN-ID against the stored value, rather than performing comprehensive validation each time. This resolves the contradiction by achieving high measurement precision through simple, fast comparisons.
Data Source
AI summary
This disclosure provides systems, methods, and apparatus, including computer programs encoded on computer storage media, for operating a user equipment (UE) in a next generation (NG) radio access network (RAN) (NG-RAN) to validate a system information block (SIB) for non-public networks (NPNs). In one aspect, a UE receiving a SIB-one (SIB1) from a cell of the NG-RAN may determine whether the cell supports non-public networks (NPNs) based on the received SIB1. If so case, the UE may determine whether an NPN-identifier (NPN-ID) in the received SIB1 matches an NPN-ID of a SIB stored in memory. If so, the UE may validate the stored SIB based at least in part on the received SIB1. If not, the UE may invalidate the stored SIB and obtain a new SIB per standard procedures.