V2X Security Policy Negotiation Between Peer UEs
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Solution Overview
Problem
Existing V2X security establishment procedures in 5G networks lack flexibility in security policy negotiation between peer UEs, allowing only the receiving UE to decide on the final security algorithm and unable to reject connections based on mismatched security capabilities or policies.
Innovation Solution
Implement a revised security establishment procedure that allows both the initiating and receiving UEs to negotiate and agree on the security policy, enabling the receiving UE to reject connections if the initiating UE's security capabilities or policies do not match its own requirements.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If the receiving UE decides unilaterally on the final security algorithm, then the security establishment procedure is simple, but the security policy flexibility and compatibility are reduced
Solution Approach 1:
The patent inverts the traditional unidirectional security decision-making process by enabling bidirectional negotiation between initiating and receiving UEs. Both UEs now participate in selecting the security algorithm, with the receiving UE providing its security capabilities and the initiating UE making the final selection based on mutual compatibility, thus resolving the contradiction between procedural simplicity and policy flexibility.
Solution Approach 2:
The patent introduces dynamic security policy negotiation where the security algorithm selection is not fixed but adapts based on the capabilities and policies of both UEs involved. This dynamic approach allows the system to adjust security parameters according to specific connection requirements while maintaining a standardized negotiation framework, balancing complexity and flexibility.
2Ease of operation
If the receiving UE cannot reject connections based on security capability mismatch, then connection establishment is easier, but security reliability is compromised
Solution Approach 1:
The patent implements preliminary security capability exchange during the connection establishment phase, allowing the receiving UE to assess the initiating UE's security capabilities before finalizing the connection. This preliminary assessment enables the receiving UE to reject incompatible connections proactively, ensuring security reliability without complicating the overall connection process.
Solution Approach 2:
The patent introduces feedback mechanisms where the receiving UE provides security capability information and compatibility assessment results back to the initiating UE. This feedback loop enables informed decision-making regarding connection acceptance, allowing the system to maintain ease of operation while ensuring security policies are compatible through continuous information exchange.
3Reliability
If security policy negotiation is enabled between peer UEs, then security compatibility and reliability are improved, but the negotiation procedure complexity increases
Solution Approach 1:
The patent manages negotiation complexity by standardizing the security parameter exchange format and negotiation流程. By defining specific parameters such as security capabilities, algorithms, and policies that UEs must exchange and negotiate, the system achieves improved security compatibility through a structured approach that prevents uncontrolled complexity growth.
Data Source
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AI summary
Techniques discussed herein can facilitate improved security establishment procedures for Vehicle to Everything (V2X) direct connections. Various embodiments are employable at or comprise User Equipment, and can initiate and/or receive V2X security establishment connections wherein a receiving UE can reject the connection based on the initiating UE's capabilities/policy and/or the initiating UE can make the final decision regarding the connection based at least on receiving security policy and capability information from the receiving UE.