Closed Access Group Cell Configuration Between Base Station Units
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing wireless communication systems face challenges in efficiently managing access control for wireless devices within closed access groups, particularly in radio access networks, where ensuring secure and controlled access to specific cells is crucial for network security and resource management.
Innovation Solution
A base station central unit sends a request message to a base station distributed unit to configure a wireless device for access to cells associated with closed access groups, receiving acknowledge messages with cell configuration parameters to enforce access restrictions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If access control for closed access groups is implemented in wireless communication systems, then network security is improved, but device complexity increases due to additional configuration and management requirements
Solution Approach 1:
The patent introduces a base station as an intermediary entity that manages access control configurations between the core network and wireless devices. The base station receives access mode indications from the core network and translates them into specific radio resource control configurations, simplifying the overall system complexity while maintaining security.
Solution Approach 2:
The access control functionality is segmented into distinct components: access mode indication from the core network, base station configuration processing, and wireless device access control enforcement. This segmentation allows each component to handle specific tasks independently, reducing overall system complexity.
2Reliability
If strict access restrictions are enforced for closed access groups, then unauthorized access risks are reduced, but ease of operation deteriorates due to limited cell access options for wireless devices
Solution Approach 1:
The patent implements dynamic access control where the base station can switch between different access modes (restricted and unrestricted) based on received indications from the core network. This allows the system to adapt access restrictions in real-time, enforcing security when needed while maintaining operational flexibility.
Solution Approach 2:
The access control mechanism changes the access mode parameter dynamically. When an access mode indication is received, the base station modifies the radio resource control configuration to either restrict or allow access to specific cells, enabling flexible control over cell access availability based on security requirements.
Data Source
AI summary
A base station central unit sends, to a base station distributed unit, a request message for a context configuration of a wireless device, wherein the request message comprises a field indicating that the wireless device is only allowed to access a cell that is associated with at least one closed access group. The base station central unit receives, from the base station distributed unit, an acknowledge message comprising cell configuration parameters of one or more cells for the context configuration of the wireless device, wherein the one or more cells are associated with at least one first closed access group.