PC5 Security Policies for Secure Relay and Remote UE Links
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing wireless communication systems face challenges in configuring and managing PC5 connection security for ProSe indirect communication to meet the security requirements of PC5 communication between relay UE and remote UE.
Innovation Solution
A method and device for configuring a PC5 security policy to protect PC5 communication between relay UE and remote UE, involving obtaining and applying a PC5 security policy by user equipment (UE) and configuring the policy by a core network to ensure security compliance with NAS and AS signaling and UP security requirements.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If PC5 connection security is configured for ProSe indirect communication, then communication security between relay UE and remote UE is improved, but device complexity and configuration difficulty increase
Solution Approach 1:
The patent introduces a core network as an intermediary to manage PC5 connection security. The core network receives security policies from the network side, processes them, and transmits them to the relay UE and remote UE. This intermediary approach centralizes security management, reducing the complexity of direct peer-to-peer configuration while maintaining strong security protection for PC5 communication between relay UE and remote UE.
Solution Approach 2:
The patent implements preliminary action by having the core network configure and prepare security policies before they are needed for actual PC5 communication. The security policies are pre-processing and prepared in advance, then transmitted to the involved UEs. This ensures that when PC5 communication occurs, the security mechanisms are already in place, simplifying the real-time configuration process while maintaining high security standards.
2Reliability
If security policies are centrally managed by core network, then security consistency and reliability are improved, but signaling overhead and network complexity increase
Solution Approach 1:
The patent applies universality by designing the core network's security policy management function to serve multiple purposes. The same core network mechanisms handle both security policy configuration and general network management tasks. This multi-functional approach ensures security consistency across all PC5 communications while avoiding the need for separate dedicated systems, thereby controlling overall network complexity and signaling overhead.
Data Source
AI summary
An information transmitting method performable by user equipment (UE) includes: obtaining a PC5 security policy by the UE, in which the PC5 security policy is configured to protect PC5 communication between relay UE and remote UE. An information transmitting method performable by a core network includes: configuring a PC5 security policy, wherein the PC5 security policy is configured to protect PC5 communication between relay UE and remote UE.