UE Relay Communication for Secure Multi-Capability Links
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Solution Overview
Problem
Current communication methods in 5G networks require devices to be authenticated at the 5G-RG or FN-RG level, leading to potential bypassing of network security and lack of secure communication between UEs with different capabilities.
Innovation Solution
A UE-to-UE relay system that supports multiple UEs with different capabilities by establishing connection links and enabling secure communication through layer 2 and layer 3 relays, using different encryption algorithms as needed.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If devices communicate through 5G-RG or FN-RG with authentication at gateway level, then connectivity to 5G network is established, but network security is bypassed and communication security cannot be guaranteed for UEs with different capabilities
Solution Approach 1:
The patent introduces a relay UE as an intermediary device between the network and remote UEs. The relay UE establishes authenticated connections with the network while providing secure communication pathways to remote UEs that may have different capabilities. This intermediary approach allows security enforcement at the relay level while enabling capability diversity among connected UEs.
Solution Approach 2:
The patent segments the communication system into distinct layers: authenticated relay UEs that maintain secure network connections, and remote UEs that communicate through the relay. This segmentation allows different security and capability requirements to be applied to different segments, resolving the contradiction between security and adaptability.
2Ease of operation
If application layer communication is used between connected devices, then communication flexibility is improved, but network security authentication is bypassed
Solution Approach 1:
The patent implements preliminary authentication at the relay UE level before application layer communication occurs. By establishing security credentials and authentication in advance at the relay, the system enables flexible application layer communication while maintaining security guarantees, as the authentication has already been performed before data transmission begins.
3Reliability
If UE-to-UE relay is implemented to support UEs out of network coverage, then communication availability is improved, but device complexity increases due to capability matching requirements
Solution Approach 1:
The patent implements self-service mechanisms where relay UEs automatically advertise their capabilities and remote UEs autonomously select appropriate relays based on their own capability requirements. This self-service approach reduces the need for complex centralized capability matching, thereby lowering overall system complexity while maintaining high communication availability.
Data Source
AI summary
A communication method by a first user equipment (UE), includes: connecting, by the first UE having a first capability, to a relay; and communicating, by the first UE, with the second UE through the relay, wherein the second UE has a second capability different from the first capability.