Base Station Access Mode Management via Dynamic Whitelists
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Solution Overview
Problem
Existing wireless communication systems face challenges in managing multiple access modes for base stations, particularly in updating whitelists for mobile devices to ensure accurate access control and paging optimization across different access modes such as closed, hybrid, and open access.
Innovation Solution
The system allows for manual and automatic selection of base stations by mobile devices based on advertised Closed Subscriber Group (CSG) IDs, with the option to update whitelists upon successful registration, distinguishing between closed and hybrid access modes to ensure proper access control and paging optimization.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a base station employs different access modes (closed, hybrid, open) for different cells, then access control flexibility and network performance are improved, but Non-Access Stratum procedures such as access control, paging, and whitelist management are adversely affected
Solution Approach 1:
The patent implements dynamic whitelist management where the system automatically adjusts whitelist contents based on the detected access mode of the base station. When a hybrid access mode is detected, the system dynamically modifies whitelist procedures compared to closed or open access modes, allowing the same system to adapt its complexity level to the operational requirements of different access modes without manual reconfiguration
Solution Approach 2:
The system incorporates feedback mechanisms by detecting the access mode of the base station during registration or operation and using this information to adjust whitelist management behavior. The mobile device or network controller receives feedback about the access mode and automatically modifies its whitelist management strategy accordingly, resolving the complexity issue through adaptive response to system state
2Measurement precision
If manual Closed Subscriber Group (CSG) selection is performed to select a base station, then access control precision is improved, but the complexity of base station selection and registration procedures increases
Solution Approach 1:
The system implements self-service by automatically performing CSG selection and whitelist management based on the detected access mode. Instead of requiring manual user intervention for each base station selection, the system autonomously evaluates the access mode of available base stations and automatically selects appropriate candidates while managing whitelist contents, thereby maintaining precision without increasing operational complexity for users
Data Source
AI summary
Systems and methodologies are described that facilitate supporting multiple access modes for a base station in a wireless communication environment. The base station can leverage hybrid, closed, or open access mode. A whitelist of a mobile device that successfully registers on the base station can be selectively updated to include a CSG ID of the base station. For example, the CSG ID of the base station can be added to the whitelist when the base station operates in closed access mode, while adding the CSG ID can be skipped when the base station operates in hybrid access mode. According to another example, the CSG ID can be selectively added based upon a received accept cause value. Additionally or alternatively, a CSG ID and an access mode indicator can be transmitted from a base station to a network node for implementing access control and/or paging optimization at the network node.