Emulated Security Management for Direct Mobile Backhaul Links
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Solution Overview
Problem
Current radio communication systems in cellular networks, particularly LTE, face challenges in establishing direct communication links between mobile base stations without relying on the standard backhaul network and core infrastructure, which is critical during network failures, and lack effective security management for such direct links.
Innovation Solution
A communication system that includes mobile structures with base stations, subscriber subscription servers, security management entities, and link entities equipped with identification modules and emulators to manage authentication and encryption using standardized techniques, allowing direct mode links between mobile structures while emulating the security management interface and using local and remote HSS entities.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If direct communication links are established between mobile base stations without core network infrastructure, then network reliability is improved during failures, but security management complexity increases
Solution Approach 1:
The patent creates a simplified copy of the security management functionality by implementing an emulator of the security management entity within each mobile base station. This emulator replicates the essential authentication and security functions of the core network's security management entity, allowing direct links to be secured without requiring actual core network infrastructure. The emulator stores security information locally and handles authentication requests independently.
Solution Approach 2:
The patent introduces virtual user terminals as intermediary entities that facilitate secure communication between mobile base stations. These virtual terminals act as mediators that can be authenticated by the emulator, enabling indirect security verification. The virtual terminal serves as an intermediate layer that simplifies the authentication process while maintaining security requirements.
2Reliability
If standardized authentication techniques are used for direct links, then security is improved, but device complexity increases due to additional security management entities
Solution Approach 1:
The patent merges multiple security management functions into a single integrated emulator component within each mobile base station. The emulator combines authentication, security information storage, and verification functions that would traditionally be distributed across multiple core network entities. This consolidation maintains standardized security procedures while reducing the number of separate components required.
Solution Approach 2:
Each mobile base station is equipped with self-contained security management capabilities through the emulator, which can independently perform authentication and security verification without requiring continuous connection to core network infrastructure. The emulator stores necessary security information locally and can autonomously handle authentication requests, enabling self-service security management.
Data Source
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AI summary
It is proposed to use the HSS servers (41,42) of a local mobile structure (113) and a remote mobile structure (114), as well as the USIM card (211,221) of a linking entity (21,22), and also an MME emulator (51,52) in order to manage security and in particular the right of the linking entity of a given mobile structure to connect with a linking entity of another mobile structure, when the linking entities establish a direct mode Backhaul type data transport link between the two mobile structures.