Remote Driving Data Rate Control Under 5G Network Congestion
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Solution Overview
Problem
Existing autonomous vehicle communication systems face network congestion and instability due to simultaneous data transmission from multiple vehicles, leading to communication paralysis and safety issues, particularly in remote driving scenarios where real-time data transmission is critical.
Innovation Solution
A vehicle communication control device and method that monitors network status and adjusts data transmission rates to ensure stable communication, allowing for standardized remote driving services across different providers.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If multiple autonomous vehicles simultaneously transmit large amounts of data to the server via 5G uplink, then the data transmission volume increases, but network congestion is aggravated and network availability decreases
Solution Approach 1:
The patent implements dynamic data transmission control where the vehicle-mounted network device adjusts transmission parameters based on real-time network status monitoring. The system dynamically modifies transmission rates, data sampling frequencies, and compression levels according to current network conditions, allowing multiple vehicles to transmit data simultaneously without causing network paralysis.
Solution Approach 2:
The system changes transmission parameters such as data compression ratios, transmission priorities, and bandwidth allocation based on network status. When network congestion is detected, the vehicle-mounted device adjusts parameters like reducing transmission frequency or increasing compression to maintain network availability while still transmitting essential autonomous driving data.
2Productivity
If data transmission is prioritized for autonomous driving, then communication efficiency for safety-critical data improves, but general 5G communication in the area may be paralyzed
Solution Approach 1:
The patent implements local quality optimization by assigning different transmission priorities to different data types. Safety-critical autonomous driving data receives higher priority transmission resources, while non-critical data is transmitted with lower priority or deferred. This localized optimization ensures communication efficiency for safety functions without completely monopolizing network resources.
Solution Approach 2:
The system applies partial action by selectively transmitting only the most critical data when network resources are constrained. Instead of transmitting all generated data, the vehicle-mounted network device identifies and prioritizes essential safety-related information, transmitting a partial set of data that maintains autonomous driving functionality while leaving network capacity available for general communication.
3Stability of the object's composition
If network monitoring and data transmission control are implemented, then network stability improves, but system complexity increases
Solution Approach 1:
The patent implements self-service through automated network status monitoring and adaptive transmission control. The vehicle-mounted network device autonomously monitors network conditions, detects congestion, and adjusts transmission parameters without requiring complex external control systems or manual intervention, thereby maintaining network stability while minimizing the added system complexity.
Data Source
AI summary
A vehicle communication control device capable of remote driving is disclosed. The vehicle communication control device capable of remote driving includes an autonomous vehicle driven under driving control according to signals, a remote driving sensor unit that receives sensor data from at least one sensor located inside and outside the autonomous vehicle, a network status processor that calculates a delay time for a network path between the vehicle and a server device and generates target bit rate information based on the delay time, a data encoder that encodes remote environment data including the sensor data based on the target bit rate information, and a transmission unit that transmits the encoded data to a remote driving control server device.