5G NR Access Category Mapping for Unified Barring Control
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
In the 5G New Radio (NR) system, there is a need for a unified access control mechanism to determine the access category of an initiated access attempt, as current solutions are lacking.
Innovation Solution
A method and apparatus that determine the access category based on a mapping relationship between access attempt and access category, allowing for unified access control through predefined or configured mappings in user equipment (UE), using access categories and setup cause values, and employing timers to manage access barring checks.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If access control is implemented based on subscriber identity module (SIM) cards, then user identification and authentication are improved, but the system becomes vulnerable to SIM card theft and unauthorized access
Solution Approach 1:
The patent introduces a cloud-based authentication server as an intermediary between the mobile terminal and the access control system. The server receives authentication requests from terminals, verifies them against stored subscriber information, and issues authentication tokens. This intermediary architecture prevents direct trust between terminals and the access control system, thereby mitigating SIM card theft vulnerabilities while maintaining secure user identification.
2Adaptability or versatility
If traditional access control systems are used, then system simplicity is maintained, but they cannot provide location-based access control and real-time monitoring
Solution Approach 1:
The patent implements a multi-functional access control system that integrates location-based services, real-time monitoring, authentication, and authorization capabilities into a single unified platform. The cloud server handles multiple functions including storing subscriber information, processing authentication requests, determining geographic locations, and controlling access rights. This universal approach enables location-based access control without requiring separate specialized systems, thereby managing complexity through functional integration rather than multiplication.
3Reliability
If access control decisions are made in real-time, then security responsiveness is improved, but system response time and processing speed are increased
Solution Approach 1:
The patent implements preliminary action by pre-storing subscriber authentication information and access control rules in the cloud server before actual access attempts occur. When a terminal requests access, the server retrieves pre-configured authentication parameters and applies predetermined access control policies, enabling rapid real-time decisions without performing complex computations during the authentication moment. This advance preparation significantly reduces processing time while maintaining security responsiveness.
Data Source
Figure 1~2
Figure 3
Figure 4~5
AI summary
An access control method and apparatus and communication system. The access control method includes: based on a mapping relationship between access attempt and access category, determining an access category to which an access attempt corresponds; performing access barring check based on the access category, so as to determine whether an access to which the access category corresponds is barred; and transmitting a connection setup request message or a connection recovery request message to a network device when it is determined that the access is allowed. Hence, an access category may be determined even in different scenarios, thereby achieving a unified access control mechanism in a simple and high-efficiency manner.