Core Network Node Area-Dependent Access Control
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Solution Overview
Problem
LTE and 5G systems lack a procedure for user control processing, such as access restriction and priority control, which are dependent on the user's location, with existing techniques only determining connection allowance managed by a Mobility Management Entity (MME).
Innovation Solution
A core network node and base station that receive association information including service attribute and area identification information, allowing them to perform control on terminal apparatuses based on their location, enabling access restriction and priority control.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If connection allowance determination is managed only by MME using white list, then connection security is improved, but user-specific area-dependent control capability deteriorates
Solution Approach 1:
The patent segments the control function by introducing area identification information that divides the service area into multiple regions. Each area can have independent control policies, allowing the system to provide differentiated access control for different geographical regions while maintaining overall connection security through the MME's white list verification.
Solution Approach 2:
The patent applies local quality by associating specific service attribute information with each area identification information. This allows different control parameters (such as access restrictions, priority levels, or service types) to be applied locally in different areas, enabling area-specific user control while the MME maintains centralized security management.
2Measurement precision
If area identification information and service attribute information are associated per terminal apparatus, then user-specific control precision is improved, but information management complexity deteriorates
Solution Approach 1:
The patent achieves universality by using a standardized association information structure that can be applied to any terminal apparatus regardless of its type or service. The same framework handles different control scenarios (access restriction, priority control, service type control) through a unified mechanism, reducing the need for separate management systems for different control types.
Solution Approach 2:
The patent introduces association information as an intermediary data structure that mediates between the terminal apparatus identification and the area-service relationships. This intermediary layer simplifies information management by providing a standardized format for storing and transmitting area-dependent control parameters, reducing the complexity of directly managing multiple control policies for each terminal.
Data Source
AI summary
To perform a user process such as access restriction and priority control, for each user depending on an area where the user is located, a first core network node includes: a memory storing instructions; and one or more processors configured to execute the instructions to: receive, from a second core network node association information including service attribute information and area identification information associated with each other, the area identification information indicating an area where processing indicated by the service attribute information is performed, the association information being preset per terminal apparatus basis; and perform control on the terminal apparatus 300 in accordance with the association information.