V2X Modem Provisioning for Cellular-Independent V2V Communication
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Solution Overview
Problem
Current vehicle-to-everything (V2X) communication systems rely on cellular networks for authentication, which limits their ability to perform vehicle-to-vehicle (V2V) communications in the absence of a cellular network, leading to dependence on 3GPP network entities and increased certification costs.
Innovation Solution
A vehicle is provisioned to perform V2V communications independently of a cellular network by using a local network connection for modem provisioning, allowing direct communication with other vehicles without relying on the 3GPP network for authentication, and utilizing an alternate mechanism for service authorization, such as a certification database accessible through a dealership or manufacturer.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If V2X communication systems use cellular networks for authentication, then authentication reliability is improved, but system independence from cellular networks deteriorates
Solution Approach 1:
The authentication system is segmented into two independent parts: cellular network-based authentication (Uu interface) and direct V2V authentication (PC5 interface). The patent enables vehicles to authenticate through multiple independent paths, allowing V2V communication to function even when cellular network authentication is unavailable, thus resolving the contradiction between authentication reliability and network independence.
Solution Approach 2:
The patent introduces an intermediary authentication mechanism where the vehicle can use locally stored authentication credentials and direct peer-to-peer verification as a mediator between the vehicles. This allows authentication to occur without requiring continuous cellular network involvement, maintaining both reliability and independence.
2Reliability
If V2V communication requires cellular network access for provisioning, then authentication security is improved, but operational flexibility in areas without cellular coverage deteriorates
Solution Approach 1:
The patent implements preliminary authentication by provisioning vehicles with security credentials and authentication keys before they need to communicate. This preliminary action allows vehicles to perform secure V2V authentication independently once deployed, maintaining security while enabling operation in areas without cellular coverage.
Solution Approach 2:
The patent enables each vehicle to have local authentication capabilities stored in its onboard system, allowing it to authenticate independently without requiring continuous connection to cellular network entities. This local quality ensures both security and operational flexibility simultaneously.
3Adaptability or versatility
If conventional V2X systems rely on 3GPP network entities for authentication, then standardization compliance is improved, but certification costs increase
Solution Approach 1:
The patent creates a universal authentication framework that can operate with multiple network types (cellular and non-cellular) and multiple authentication mechanisms. This multi-functionality allows the system to comply with 3GPP standards while also supporting cost-effective alternative authentication paths, reducing the need for expensive certification of every possible deployment scenario.
Data Source
AI summary
A vehicle includes a modem and a processor. The processor is programmed to provision the modem, over a local network connection, to perform vehicle-to-vehicle communications, the provisioning being performed independent of access to a cellular communications network, and once provisioned, communicate with a second vehicle over a direct vehicle-to-vehicle connection. The modem may be tested utilizing a Protocol Implementation Conformance Statement (PICS) separating test cases for use of a PC5 interface only, for use of a Uu interface only, and for a hybrid for use of Uu and PC5.