Vehicle Terminal Resource Pattern Coordination
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Solution Overview
Problem
Existing in-vehicle terminal devices face challenges in efficiently coordinating radio resources for communication among multiple vehicles, leading to increased collision probabilities and reduced reliability, especially for time-critical applications like platooning and lane changes, which are not effectively addressed by centralized base station dependencies.
Innovation Solution
The implementation of a decentralized method for determining and reserving radio resource patterns within a resource pool, allowing groups of in-vehicle terminal devices to exclusively use specific radio resources by determining available and prioritized resources, and transmitting control information on a control channel to manage resource usage and prevent collisions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If centralized base station dependency is used for resource coordination, then infrastructure reliance is increased, but communication reliability for time-critical applications is reduced
Solution Approach 1:
The patent extracts the resource coordination function from the centralized base station and implements it directly at the terminal device level. Each terminal device independently determines resource patterns and transmits control information, eliminating dependency on base station infrastructure while maintaining reliable communication for time-critical applications.
Solution Approach 2:
Terminal devices perform self-organization for resource allocation by autonomously determining resource patterns and transmitting control information on control channels. This self-service mechanism enables reliable communication without requiring centralized base station coordination, directly addressing the reliability issue in autonomous vehicle communication.
2Reliability
If decentralized resource determination is implemented, then communication reliability is improved, but collision probability on radio resources increases
Solution Approach 1:
Terminal devices perform preliminary determination of resource patterns before actual data transmission. By pre-calculating and reserving specific radio resources through control information transmission, the system prevents collisions before they occur, enabling reliable communication while eliminating the harmful collision effect.
Solution Approach 2:
The control channel acts as an intermediary mechanism that mediates between terminal devices and radio resources. Control information transmitted on this intermediary channel coordinates resource usage among multiple devices, preventing direct collisions while maintaining decentralized operation and communication reliability.
3Loss of time
If exclusive resource reservation is implemented, then message delivery time is reduced, but resource utilization efficiency decreases
Solution Approach 1:
The patent segments the resource pool into multiple resource patterns that can be independently determined and reserved by different terminal devices. This segmentation allows time-critical messages to receive exclusive resource allocation with reduced delivery time, while other non-time-critical traffic can utilize remaining resources, thereby maintaining overall system productivity.
Solution Approach 2:
The system implements partial resource reservation where only the necessary portion of radio resources is exclusively allocated for time-critical messages. This partial action approach ensures fast message delivery for critical applications while leaving sufficient resources available for other traffic types, balancing time performance with resource utilization efficiency.
Data Source
AI summary
The invention relates to a method for operating a first vehicle terminal (NN1; NN2, NN3; NN4) for a wireless communications network, the method comprising: determining a resource pattern within a resource pool, the resource pattern comprising a plurality of wireless resources of a data channel within the resource pool; and sending, on a control channel, an item of control information which indicates the resource pattern and a group of at least two vehicle terminals associated with the resource pattern.