SEPP Error Handling Framework for 5G SBA Security
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Solution Overview
Problem
Security management in 5G communication systems faces challenges due to ongoing improvements in network efficiency and subscriber convenience, which can lead to security issues such as error conditions and integrity breaches in the Service-Based Architecture (SBA) of 5G networks.
Innovation Solution
The implementation of Security Edge Protection Proxies (SEPPs) in 5G communication systems, which detect error conditions and trigger renegotiation of security mechanisms using different security parameters, ensuring secure message transmission and error handling through a four-part error handling framework.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If security mechanisms are continuously improved to enhance network efficiency and subscriber convenience, then network performance and user experience are improved, but security vulnerabilities and error conditions increase
Solution Approach 1:
The patent introduces a Security Edge Protection Proxy (SEPP) as an intermediary component between networks. The SEPP detects error conditions in security messages and triggers renegotiation of security mechanisms using different security parameters, acting as a mediator that resolves security vulnerabilities without disrupting network efficiency
Solution Approach 2:
The patent implements dynamic changing of security parameters through error handling procedures. When error conditions are detected, the system renegotiates security mechanisms using different security parameters, thereby adapting to security vulnerabilities while maintaining network performance
2Reliability
If security protocols are made more complex to address emerging threats, then security coverage is improved, but system complexity and error handling difficulty increase
Solution Approach 1:
The patent segments security management into distinct functional components: error detection, error handling decision-making, and security parameter renegotiation. This segmentation is implemented through the SEPP architecture, which separates security monitoring from core network operations, making the system more manageable despite increased security requirements
Solution Approach 2:
The patent implements feedback mechanisms where the SEPP continuously monitors security messages for error conditions and triggers renegotiation procedures. This closed-loop feedback system automatically adjusts security parameters in response to detected vulnerabilities, reducing the need for manual configuration and simplifying complex security management
Data Source
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AI summary
In a communication system comprising a first network operatively coupled to a second network, wherein the first network comprises a first security edge protection proxy element operatively coupled to a second security edge protection proxy element of the second network, and wherein one of the first and second security edge protection proxy elements is a sending security edge protection proxy element and the other of the first and second security edge protection proxy elements is a receiving security edge protection proxy element, the receiving security edge protection proxy element receives a message from the sending security edge protection proxy element. The receiving security edge protection proxy element detects one or more error conditions associated with the received message. The receiving security edge protection proxy element determines one or more error handling actions to be taken in response to the one or more detected error conditions.