Virtualized Roadside Unit Baseband Processing for DSRC and C-V2X

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Solution Overview

Problem

Conventional roadside units (RSUs) with multiple hardware modems for baseband signal processing are costly and inflexible due to hardware-driven upgrades being necessary for technological changes, limiting the ability to adapt to evolving standards.

Innovation Solution

Implementing software-based baseband processing using virtualized processors and accelerators, allowing RSUs to support multiple communication protocols like DSRC and C-V2X, with RF frontends connected via high-capacity links, and utilizing containerization or virtualization for efficient protocol handling.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If multiple hardware modems are used for baseband signal processing, then communication protocols like DSRC and C-V2X can be supported, but cost increases and flexibility for upgrades decreases

Engineering Contradiction:

Improveflexibility for upgradesVSAvoidhardware complexity

Core Design Contradiction:

Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The patent replaces hardware-driven baseband processing with software-based processing. Specifically, it uses a software containerization environment where different communication protocols (DSRC, C-V2X) are processed through software modules rather than dedicated hardware modems. This substitution allows the system to adapt to new standards by updating software rather than replacing hardware components.

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

Solution Approach 2:

The patent creates a universal processing platform that can handle multiple communication protocols simultaneously through software containerization. The baseband processing unit is designed to execute different protocol-specific software modules (e.g., DSRC stack, C-V2X stack) on the same hardware infrastructure, making the system multi-functional without requiring separate dedicated hardware for each protocol.

Inventive Principle:

Principle #6Universality (Multi-functionality)

2Adaptability or versatility

If multiple hardware modems are deployed for different communication protocols, then protocol support is achieved, but cost increases

Engineering Contradiction:

Improveprotocol support capabilityVSAvoidhardware quantity

Core Design Contradiction:

Adaptability or versatilityVSQuantity of substance

Solution Approach 1:

The patent merges the functionality of multiple protocol-specific hardware modems into a single unified baseband processing unit. By combining DSRC, C-V2X, and other protocol processing capabilities into one shared hardware platform with software-defined functionality, the system reduces the total quantity of hardware components while maintaining comprehensive protocol support.

Inventive Principle:

Principle #5Merging (Combining)

Solution Approach 2:

The patent uses software containerization to create virtual copies of protocol processing stacks. Instead of having physical copies of multiple hardware modems, the system creates software-based replicas of communication protocol stacks (e.g., virtual DSRC stack, virtual C-V2X stack) that run on shared hardware, thereby reducing hardware quantity while maintaining protocol support capability.

Inventive Principle:

Principle #26Copying

3Reliability

If hardware-driven baseband processing is used, then signal processing performance is maintained, but ability to perform upgrades decreases

Engineering Contradiction:

Improvesignal processing performanceVSAvoidupgrade capability

Core Design Contradiction:

ReliabilityVSAdaptability or versatility

Solution Approach 1:

The patent introduces dynamic configurability to the baseband processing system through software containerization. The system can dynamically load, unload, and switch between different protocol-specific software modules based on operational requirements. This dynamic approach maintains signal processing performance through optimized software implementations while enabling easy upgrades by simply deploying new software versions or adding new protocol stacks without hardware changes.

Inventive Principle:

Principle #15Dynamics

Data Source

PatentUS12451910B2Roadside unit, a processing module for processing a roadside unit signal, and a method of processing a roadside unit signal

Publication Date: 2025.10.21 INTEL CORP

AI summary

Disclosed herein is a roadside unit with a radio frontend port configured to receive a first signal representing a radiofrequency transmission according to a first radio communication protocol, to receive a second signal representing a radiofrequency transmission according to a second radio communication protocol. A first processing subsystem configured to execute a first baseband process of the first radio communication protocol on the first signal and to generate a first output signal as an output of the first baseband process. A second processing subsystem configured to execute a baseband process of the second radio communication protocol on the second signal and to generate a second output signal as an output of the second baseband process. The first processing subsystem is a first software containerization or a first machine virtualization of the processor, wherein the second processing subsystem is a second software containerization or a second machine virtualization of the processor.