Cloud Digital Twin for Vehicular Communication Offloading
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Solution Overview
Problem
Vehicular communication networks face congestion issues due to a large number of vehicles transmitting and receiving wireless communications, leading to potential bottlenecks and network unavailability, which existing standards struggle to address without violating established rules.
Innovation Solution
A digital twin communication system where a cloud server uses digital twin simulations to transmit non-vehicular communications on behalf of vehicles, optimizing communication plans to reduce latency and ensure compliance with vehicular communication standards, thereby offloading the responsibility of transmitting scheduled wireless messages from vehicles to the cloud server.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If a large number of vehicles transmit and receive wireless communications directly, then vehicular communication coverage is improved, but wireless communication channel congestion increases
Solution Approach 1:
The patent introduces a cloud server as an intermediary to handle vehicular communications. The cloud server receives communication data from vehicles, processes it, and transmits it to destinations, thereby mediating between vehicles and reducing direct peer-to-peer communication traffic that causes channel congestion.
Solution Approach 2:
The patent creates digital twin simulations that replicate vehicular communication scenarios. These digital twins allow the system to simulate, analyze, and optimize communication patterns without requiring actual vehicles to transmit every message, reducing real-world communication load while maintaining coverage.
2Loss of time
If vehicles transmit all vehicular communications directly, then communication timeliness is improved, but network bottleneck risk increases
Solution Approach 1:
The system performs preliminary actions by using digital twin simulations to pre-process and optimize communication plans before actual transmission. The cloud server prepares communication strategies in advance based on simulated scenarios, allowing for timely and reliable execution without overloading the network during peak moments.
3Quantity of substance
If digital twin simulations are executed to optimize communication plans, then communication channel congestion is reduced, but system complexity increases
Solution Approach 1:
The cloud server acts as an intermediary that handles the complexity of digital twin simulations and communication optimization, isolating this complexity from individual vehicles. Vehicles simply interact with the cloud server through standardized interfaces, while the heavy lifting of simulation and optimization occurs centrally in the cloud.
4Reliability
If cloud server handles all non-vehicular communications, then vehicular communication reliability is improved, but communication latency may increase
Solution Approach 1:
The cloud server performs preliminary processing of communications, including digital twin simulations and communication plan generation, before actual transmission occurs. This advance preparation allows the system to optimize routes and timing, reducing latency during the actual communication event while maintaining high reliability through pre-validated plans.
Data Source
AI summary
The disclosure includes embodiments for a cloud server to transmit a set of wireless communications. A method includes wirelessly receiving, by the cloud server, context data from a set of connected vehicles, where the context data describes (1) a context for the set of connected vehicles and (2) a set of vehicular communications to be sent by the set of connected vehicles, including digital data describing payloads and recipients for these vehicular communications. The method includes executing a set of digital twin simulations based on the context data to generate communication plan data describing a communication plan for transmitting a set of non-vehicular communications which include a same payloads and recipients for the set of vehicular communications. The method includes wirelessly transmitting, by the cloud server, the set of non-vehicular communications in compliance with the communication plan and the standards governing transmission of vehicular communications.