Access Stratum Barring Timer for Wireless Node Access Control
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Solution Overview
Problem
Current wireless communication systems face challenges in efficiently providing services, particularly in managing access control and network configuration in next-generation mobile communication systems, especially with the integration of advanced technologies like 5G and IoT, where existing methods struggle to optimize network setup and access management efficiently.
Innovation Solution
The proposed solution involves a method performed by a terminal in a wireless communication system, where the access stratum layer triggers network access, determines if a barring timer for the access category is running, and alleviates barring when it expires, enabling efficient access control by defining separate system information, access categories, and radio resource control for IAB setup, allowing for optimized network configuration and service provision.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If access control is implemented in traditional wireless communication systems, then network security and stability are improved, but access delay and service provision efficiency deteriorate
Solution Approach 1:
The patent segments access control into multiple access categories (0-7) with different barring parameters, allowing different services to experience different levels of access control. This segmentation enables critical services to bypass delays while non-critical services accept longer barring periods, resolving the contradiction between network stability and access speed.
Solution Approach 2:
The patent introduces access category-specific barring parameters (ac-BarringFactor and ac-BarringTime) that can be dynamically adjusted based on network conditions and service requirements. By changing these parameters for different access categories, the system maintains security while optimizing access delay for time-sensitive services.
2Device complexity
If unified access control methods are used for all services, then system complexity is reduced, but service optimization and performance deteriorate
Solution Approach 1:
The patent divides the access control system into multiple access categories with distinct parameters and procedures. Each category has its own barring factors and time periods, allowing differentiated service optimization without requiring completely separate control systems for each service type.
Solution Approach 2:
The patent creates a universal access control framework that handles multiple service types through a common structure (access categories, barring parameters, network procedures). This multi-functional approach optimizes different services while maintaining manageable system complexity through standardized procedures.
3Ease of manufacture
If existing access control parameters are used for IAB nodes, then configuration simplicity is maintained, but access performance and service provision deteriorate
Solution Approach 1:
The patent applies local quality by defining specific access category parameters tailored for IAB node operations. Instead of using generic parameters for all nodes, the system implements category-specific configurations that address the unique requirements of IAB nodes while maintaining the overall simplicity of the access control framework.
Data Source
AI summary
A method, performed by a terminal, of performing an access control on a network in a wireless communication system, includes: triggering, by an access stratum (AS) layer, an access to the network; determining, by the AS layer, whether a barring timer for an access category corresponding to the triggered access is running; and in response to the barring timer expiring, determining, by the AS layer, that barring for the access category is alleviated.