Local IP Access Control in Home Base Stations
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Solution Overview
Problem
Current mobile communication systems lack the ability to separately designate access rights for multiple services provided through local IP access functionality in home base stations, making it difficult to control access scenarios such as restricting internet connection while allowing home network access, or vice versa, without modifying the existing system architecture.
Innovation Solution
A mobile communication system architecture that includes a home base station, subscriber information management apparatus, position management apparatus, and access control apparatus, where the position management apparatus receives an attach request from a mobile station with an APN and determines access rights based on subscriber information and CSG ID, allowing or disallowing communication paths for local IP access accordingly.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If local IP access functionality is provided in home base stations, then traffic load distribution and internet connection service are improved, but the ability to separately control access rights for different services deteriorates
Solution Approach 1:
The patent segments the access control mechanism by introducing service-specific access rights. Instead of a unified access control system, the invention divides access permissions into service-level units (internet connection service, home network connection service, etc.), allowing independent control of each service's access rights through separate CSG ID configurations.
Solution Approach 2:
The patent introduces an intermediary mechanism (the position management apparatus and subscription information management apparatus) that mediates between the home base station and mobile stations. This intermediary system handles the complex access control logic by verifying service-specific access rights against subscription information, thereby simplifying the home base station's role while enabling fine-grained access control.
2Reliability
If detailed access control for each service is implemented, then access security and privacy are improved, but system complexity increases
Solution Approach 1:
The patent introduces an intermediary mechanism (the position management apparatus and subscription information management apparatus) that mediates between the home base station and mobile stations. This intermediary system handles the complex access control logic by verifying service-specific access rights against subscription information, thereby simplifying the home base station's role while enabling fine-grained access control.
Solution Approach 2:
The patent creates a universal access control framework that can handle multiple services (internet connection, home network connection, etc.) through a common mechanism. The position management apparatus and subscription information management apparatus serve as multi-functional components that manage access rights across different services using a unified approach based on CSG IDs and subscription data.
3Adaptability or versatility
If the existing system architecture is modified to enable service-specific access control, then access control capability is improved, but system stability and compatibility deteriorate
Solution Approach 1:
The patent creates a universal access control framework that can handle multiple services (internet connection, home network connection, etc.) through a common mechanism. The position management apparatus and subscription information management apparatus serve as multi-functional components that manage access rights across different services using a unified approach based on CSG IDs and subscription data.
Solution Approach 2:
The patent implements preliminary action by pre-configuring service-specific access rights in the subscription information management apparatus before access control decisions are made. The system pre-establishes the relationship between mobile stations, services, and CSG IDs, allowing rapid access control decisions without real-time complex computations, thereby maintaining system stability while enabling versatile access control.
Data Source
AI summary
A system includes a bases station including circuitry configured to receive a signal regarding an attach procedure; transmit, to a position management apparatus, the attach procedure signal together with a CSGID, based on receiving the attach procedure signal; receive an attachment acceptance together with fourth information from the position management apparatus, as a response to the signal regarding the attach procedure, wherein the fourth information is permission information indicating that Local IP Access (LIPA) is permitted; and transmit an attachment acceptance without including the fourth information to the mobile station apparatus, after receiving the attachment acceptance; and a mobile station including circuitry able to transmit first information corresponding to Local IP access (LIPA) for connecting to a network without passing through a core network, and in a case that LIPA is permitted, to perform data reception and transmission with the network without passing through the core network.