Sidelink Unicast Security Policy Configuration
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Solution Overview
Problem
Current mobile communication technologies, particularly in the context of 3GPP LTE and emerging 5G NR systems, lack effective methods for securing V2X and sidelink communications, which are crucial for ensuring the integrity and confidentiality of data exchanged between user equipment (UEs) without relying on base stations, especially in scenarios requiring high security such as vehicle-to-everything (V2X) communications.
Innovation Solution
A method for establishing a unicast link between user equipment (UEs) involves transmitting a request message and receiving a response message, utilizing processor-executed instructions to configure security policies for V2X services, ensuring signaling and user plane integrity and confidentiality protection, and supporting different security settings based on service requirements.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If direct communication (sidelink) is established between UEs without base station involvement, then communication efficiency and reduced base station burden are improved, but security protection mechanisms become insufficient
Solution Approach 1:
The patent introduces a base station as an intermediary that provides security protection for sidelink communications. The base station generates security policies, manages security contexts, and protects signaling messages between UEs without directly participating in the data transmission, thus maintaining communication efficiency while enhancing security
Solution Approach 2:
The patent segments the communication system into distinct functional parts: UE-to-UE direct communication for data transmission and base station involvement only for security management. This segmentation allows independent optimization of both communication efficiency and security protection
2Adaptability or versatility
If security policies are configured for each V2X service, then security adaptability to different service requirements is improved, but system complexity increases
Solution Approach 1:
The patent implements dynamic security policies that can be adjusted based on service requirements. The base station can generate and update security policies for different V2X services (unicast, groupcast, broadcast) according to their specific security needs, allowing the system to adapt to varying security requirements without being statically configured
Solution Approach 2:
The patent changes security parameters (such as integrity protection, confidentiality protection) based on different service types and requirements. Different security policy configurations are applied to different V2X services, enabling adaptable security protection while managing complexity through parameterization
Data Source
AI summary
A disclosure of the present specification provides a method for performing direct communication by a first UE. The method may comprise the steps of: transmitting, to a second UE, a request message for establishing a unicast link; and receiving, from the second UE, a response message regarding the request message.