Cooperative ITS Node Technology Status Detection
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Solution Overview
Problem
The challenge in Cooperative Intelligent Transport Systems (C-ITS) is the coexistence of different communication technologies, such as DSRC and LTE-V2X, during a transition period and in mixed technology scenarios, where vehicles need to communicate effectively while optimizing spectrum usage and handling capacity issues.
Innovation Solution
A method and device that identify the technology status of incoming messages, including a dual technology indicator, to enable nodes to adapt their communication behavior, ensuring compatibility and efficient communication between vehicles using different technologies by transmitting messages according to both DSRC and LTE-V2X standards.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the spectrum is partitioned between DSRC and LTE-V2X technologies, then each technology can operate independently, but the capacity for each technology is halved
Solution Approach 1:
The patent implements a dual-mode communication system where a single communication module can operate in both DSRC and LTE-V2X modes. The module detects the technology type of incoming messages and adapts its transmission protocol accordingly, enabling one piece of equipment to serve multiple communication standards and maintain full spectrum utilization for each technology.
2Duration of action of stationary object
If both DSRC and LTE-V2X technologies coexist during a transition period, then communication continuity is maintained, but vehicles using different technologies need to communicate effectively
Solution Approach 1:
The communication module dynamically adapts its operation mode based on real-time detection of incoming message technology types. When a DSRC message is detected, the module switches to DSRC protocol for transmission; when an LTE-V2X message is detected, it switches to LTE-V2X protocol. This dynamic adaptation enables seamless cross-technology communication throughout the transition period.
Solution Approach 2:
The patent introduces a technology detection and adaptation layer that acts as an intermediary between the physical communication hardware and the application layer. This intermediary detects the technology type of incoming messages and translates/adapts the communication protocol accordingly, enabling different technology ecosystems to interoperate during the transition period.
3Reliability
If spectrum partitioning is implemented to support multiple technologies, then technology interference is reduced, but overall spectrum utilization efficiency decreases
Solution Approach 1:
Instead of dedicating specific frequency bands to specific technologies, the patent creates a universal communication module that can access and operate on the full spectrum using either DSRC or LTE-V2X protocols. This eliminates the need for spectrum partitioning while maintaining technology independence through software-based protocol adaptation.
Data Source
AI summary
A method for communication within a cooperative intelligent transport system. The method comprises receiving, in a first node, a first intelligent transport system message from another node of the cooperative intelligent transport system. In the first node, a technology status of that another node is identified. The technology status comprises information whether or not the first intelligent transport system message was transmitted configured according to a predetermined first intelligent transport system technology, and information whether or not the first intelligent transport system message comprises a dual technology indicator. The dual technology indicator is an information element identifying that the node transmitting the first intelligent transport system message is capable of communicating intelligent transport system messages according to the first intelligent transport system technology as well as according to a predetermined second technology. A corresponding node for communication within a cooperative intelligent transport system is also disclosed.