Base Station CSG Configuration for RAN Sharing
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
In wireless communication systems, the coordination of Closed Subscriber Group (CSG) IDs across multiple Public Land Mobile Networks (PLMNs) in RAN sharing scenarios is cumbersome and resource-intensive, as conventional methods do not allow base stations to distinguish which PLMNs have enabled CSG, leading to unnecessary coordination efforts among PLMNs.
Innovation Solution
A method and system where a base station determines which PLMNs have enabled CSG and which have not, allowing it to configure CSG radio access only for PLMNs that have enabled it, and provide open radio access for those that have not, thereby optimizing interface connections and reducing unnecessary coordination.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If conventional methods are used for RAN sharing, then all PLMNs undergo CSG coordination and configuration, but this leads to unnecessary coordination efforts and resource consumption for PLMNs that have not enabled CSG
Solution Approach 1:
The patent applies local quality by enabling CSG functionality selectively in specific PLMNs rather than uniformly across all PLMNs. The base station determines which PLMNs have enabled CSG and configures CSG radio access only for those specific PLMNs, while providing open radio access for PLMNs that have not enabled CSG. This localized approach ensures that CSG coordination and configuration efforts are concentrated only where needed, eliminating unnecessary resource consumption in PLMNs that do not require CSG functionality.
2Reliability
If the base station configures CSG radio access for all PLMNs, then CSG operation is ensured for PLMNs that have enabled it, but this increases device complexity and signaling overhead
Solution Approach 1:
The patent applies preliminary action by having the base station determine in advance which PLMNs have enabled CSG before proceeding with configuration. The base station receives information indicating whether each PLMN has enabled CSG, makes a determination based on this information, and then configures CSG radio access only for those PLMNs that have enabled it. This preliminary determination step prevents unnecessary configuration complexity and signaling overhead for PLMNs that do not require CSG, while ensuring reliable CSG operation for those that do.
3Ease of operation
If the base station provides open radio access for all PLMNs, then operation is simplified, but CSG functionality cannot be provided for PLMNs that have enabled it
Solution Approach 1:
The patent applies dynamics by making the base station's access configuration adaptive rather than static. The base station dynamically determines the appropriate access mode (CSG or open) for each PLMN based on received information indicating whether CSG has been enabled. This dynamic approach allows the system to simplify operations for PLMNs that do not require CSG while simultaneously providing full CSG functionality for PLMNs that have enabled it, thus achieving both ease of operation and adaptability.
Data Source
AI summary
A method and system for a base station (BS) configured for sharing among a plurality of public land mobile networks (PLMNs), and for providing open radio access and/or closed subscriber group (CSG) radio access for user equipment devices (UEs) served. The BS may make a determination of which PLMNs have enabled CSG and which have not, and may transmit a request to a core network of each PLMN to set up an interface connection with each. Based on the determination, the request may either include information for configuring CSG radio access, or information for configuring only open radio access. For each PLMN having CSG enabled, the interface connection may be established for CSG radio access for UEs associated with PLMNs having CSG enabled. For each PLMN not having CSG enabled, the interface connection may be established for only open radio access for UEs associated with PLMNs without CSG enabled.