RAN Sharing Access Control for PLMN-Supported Disaster Roaming
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Solution Overview
Problem
Existing mobile communication systems lack efficient access control mechanisms for radio resources during disaster conditions, leading to inefficiencies in service provision and resource utilization.
Innovation Solution
Implementing a method and device for access control in radio access network sharing by transmitting and receiving specific barring configuration information and disaster information lists between terminals and base stations, allowing or barring disaster roaming access based on PLMN support, thereby optimizing radio resource use.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If access control mechanisms are implemented during disaster conditions, then service provision efficiency is improved, but device complexity increases
Solution Approach 1:
The access control mechanism is segmented by implementing separate barring configuration information for different PLMNs (Public Land Mobile Networks). The system divides the access control into network-specific segments, where each PLMN can have its own disaster roaming barring settings. This allows selective access control without requiring a complete overhaul of the access control system, thus improving service provision efficiency while limiting the increase in overall device complexity.
Solution Approach 2:
The system performs preliminary actions by pre-configuring barring configuration information and disaster information lists before disaster conditions occur. The base station pre-prepares access control parameters including PLMN-specific barring settings, which are then activated during disaster conditions. This preliminary preparation enables rapid response during disasters without requiring complex real-time decision-making, thereby improving service provision efficiency while maintaining manageable device complexity.
2Adaptability or versatility
If PLMN-specific disaster roaming information is transmitted, then adaptability is improved, but information transmission overhead increases
Solution Approach 1:
The system implements universality by creating a multi-functional disaster information list structure that can serve multiple PLMNs simultaneously. The barring configuration information is designed to be universally applicable across different PLMNs, with each entry in the disaster information list capable of referencing multiple network identifiers. This allows the same information structure to provide PLMN-specific adaptability while avoiding redundant information transmission, thus improving disaster roaming adaptability without proportionally increasing information transmission overhead.
Solution Approach 2:
The information structure employs a nested organization where PLMN-specific disaster roaming information is organized in a hierarchical manner. The disaster information list contains nested references to multiple PLMN identifiers within a single information element. This nesting allows the system to convey information about multiple PLMNs efficiently, providing high adaptability for disaster roaming while minimizing the total quantity of information that needs to be transmitted over the air interface.
Data Source
AI summary
The present disclosure relates to a communication technique for merging IoT technology with a 5G communication system for supporting a data transmission rate higher than that of a 4G system, and a system therefor. The present disclosure can be applied to intelligent services (for example, smart homes, smart buildings, smart cities, smart cars or connected cars, healthcare, digital education, retail businesses, security- and safety-related services, and the like) on the basis of 5G communication technology and IoT-related technology. The present disclosure relates to operations of a terminal and a base station in a mobile communication system. The present disclosure provides a method and a device for providing access control in RAN sharing when a disaster condition has occurred.