Terminal Device Resource Allocation for V2X Congestion
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Solution Overview
Problem
In vehicle-to-person and vehicle-to-vehicle communication, existing data transmission methods face congestion issues, which affect the efficiency of traffic communication and increase the risk of driving accidents.
Innovation Solution
A method where a terminal device acquires target resource configuration information based on preset correspondence relationships to determine optimal resource allocation for data packet transmission, including parameters like QoS, probability of reserving resources, and time delay, allowing it to manage congestion by controlling communication resources directly.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the terminal device uses traditional data transmission methods in vehicle-to-person and vehicle-to-vehicle communication, then communication can be established, but congestion occurs in the data transmission process, affecting communication efficiency and increasing driving risk
Solution Approach 1:
The patent applies dynamics by making the resource selection process adaptive and flexible. The terminal device dynamically selects between first resource pool and second resource pool based on real-time conditions, and dynamically adjusts resource reservation based on QoS requirements. This dynamic approach allows the system to adapt to changing traffic conditions, avoiding congestion while maintaining communication efficiency.
Solution Approach 2:
The patent changes key parameters including resource pool selection (first vs second resource pool), resource reservation probability, and time delay parameters. By adjusting these parameters based on QoS requirements and channel conditions, the system optimizes data transmission to prevent congestion while ensuring reliable delivery of safety-critical information.
2Reliability
If the terminal device reserves transmission resources in advance, then data packet transmission reliability is improved, but resource waste occurs when congestion does not occur
Solution Approach 1:
The patent applies local quality by differentiating resource reservation strategies based on specific QoS requirements. Different data packets with different QoS levels receive different reservation probabilities and resource allocation. This localized differentiation ensures that only necessary packets reserve resources in advance, improving reliability for critical packets while avoiding resource waste for non-critical packets.
Solution Approach 2:
The patent uses partial action by implementing probabilistic resource reservation rather than reserving resources for all packets. The terminal device reserves resources with a certain probability based on QoS requirements, which is sufficient to guarantee reliability for critical packets without unnecessarily reserving resources for all transmissions, thus avoiding waste.
3Productivity
If the terminal device sends data packets without resource reservation, then resource utilization is improved, but transmission delays occur affecting real-time communication requirements
Solution Approach 1:
The patent applies preliminary action by reserving transmission resources in advance for data packets with specific QoS requirements. For packets requiring low latency, the terminal device pre-reserves resources from the first resource pool, ensuring that transmission can occur immediately without waiting for resource availability, thus avoiding delays while maintaining high resource utilization through selective reservation.
4Reliability
If the terminal device implements complex resource management strategies, then transmission reliability is improved, but device complexity increases
Solution Approach 1:
The patent applies segmentation by dividing resource management into distinct categories: first resource pool for packets requiring low latency with QoS parameters meeting threshold conditions, and second resource pool for other packets. This segmentation simplifies the decision-making process at the terminal device, improving reliability through structured resource allocation while reducing complexity compared to unified resource management.
Data Source
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AI summary
The present invention provides a method and device for data transmission. The method includes: acquiring, by a terminal device, target resource configuration information, wherein the target resource configuration information corresponds to target service related information determined by the terminal device; and sending, by the terminal device, according to the target resource configuration information, a data packet to be sent that carries the target service. Congestion during a data transmission process can be alleviated.