Relay UE Authentication Scheme Selection for Remote Device Security
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Solution Overview
Problem
Current wireless communication systems face challenges in efficiently authenticating remote user equipment (UE) that communicate with a core network through a relay UE, particularly in scenarios requiring secure and reliable connections for various services, including enhanced mobile broadband and massive machine-type communications.
Innovation Solution
A method and device for authenticating a remote UE in a wireless communication system, where a first UE provides authentication scheme information to a second UE, enabling direct discovery and connection to a network, using a control plane or user plane scheme, and involving ProSe UE-to-network relay services with specific indicators and key management functions for secure authentication.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If authentication is performed for remote UE through relay UE, then network security is improved, but authentication complexity increases
Solution Approach 1:
The relay UE acts as an intermediary between the remote UE and the core network, performing authentication on behalf of the remote UE. The relay UE receives authentication scheme information from the network, determines appropriate authentication schemes based on service requirements, and facilitates authentication without requiring the remote UE to directly interact with the core network authentication functions.
Solution Approach 2:
The authentication process is segmented into distinct phases: the relay UE receives authentication scheme information, determines the appropriate authentication scheme based on service requirements, and then performs authentication. This segmentation allows for manageable complexity and enables different authentication schemes to be applied based on specific service needs.
2Adaptability or versatility
If multiple authentication schemes are supported, then adaptability to different services is improved, but device complexity increases
Solution Approach 1:
The system dynamically selects and switches between different authentication schemes based on service requirements. The relay UE receives authentication scheme information and determines the appropriate scheme to use, allowing the system to adapt to different service needs without requiring all authentication schemes to be active simultaneously, thus managing complexity.
Solution Approach 2:
The relay UE is designed to support multiple authentication schemes and can determine which scheme to use based on service requirements. This multi-functionality allows a single relay UE to handle various authentication scenarios, improving adaptability while managing complexity through intelligent scheme selection rather than implementing all schemes in parallel.
3Reliability
If authentication information is exchanged between UEs, then authentication reliability is improved, but communication overhead increases
Solution Approach 1:
The relay UE receives authentication scheme information from the network in advance and stores it for later use. When authentication is needed, the relay UE can quickly determine the appropriate scheme and proceed with authentication without requiring extensive real-time information exchange, thus reducing communication overhead while maintaining reliability.
Data Source
AI summary
A method for authenticating a UE in a wireless communication system disclosed herein may comprise: a step in which a first UE receives authentication mode information, wherein a second UE relaying the first UE also receives the authentication mode information, and the first UE, on the basis of the authentication mode information, requests information necessary for direct search between UEs; a step in which the first UE receives the information necessary for direct searches between UEs; and a step for connecting to a network and performing authentication via the second UE on the basis of the received information necessary for direct searches between the UEs.